Provided is a medical device that can both puncture and cut a biological membrane. Provided is an oblong medical device (10) that comprises an oblong shaft (30) and an electrode part (40). The shaft (30) has an oblong shaft body (33) and an extending part (34) that protrudes from a distal part of the shaft body (33) to the side of the shaft body (33) and extends toward a proximal end part (31) side of the shaft body (33). The extending part (34) has a first end part (36) that is connected to the distal part of the shaft body (33) and a second end part (37) that is on the opposite side from the first end part (36) in the extension direction of the extending part (34). The electrode part (40) has a puncturing part that is positioned at a distal end of the medical device (10) and can be energized to cauterize and thereby puncture a biological membrane (200) and a cutting part that contacts the biological membrane (200) further to the proximal side than the puncturing part when the medical device (10) is pulled to the proximal side and can be energized to cauterize and thereby cut the biological membrane (200).
[Problem] To provide: an electron beam irradiation device which, while suppressing an increase in the amount of an inert gas used, can improve the product quality of an irradiation target by keeping the distance between the irradiation target and an emission surface of an electron beam irradiation part constant; and a method for producing a medical instrument. [Solution] A baffle part (140) included in an electron beam irradiation device (10) has a suction part (180) and a partition wall part (147) that is positioned on the emission surface side of the suction part (180) and that includes a plurality of holes (146). The suction part includes an open end (181) and a suction path (183) that is in communication with the open end. The open end is disposed so as to face the partition wall part. The suction part suctions a portion of a medical elongated body (300A) from the open end so that the partition wall part and the medical elongated body are in contact with each other in a state where a portion of the medical elongated body is disposed in a space (130a) positioned between the emission surface (111) and the baffle part.
This drip probe attached to a drip chamber comprises: an illumination unit that emits a plurality of first light components; and an imaging unit provided at a position facing the illumination unit across the drip chamber. The imaging unit includes: a first light converter that converts the optical paths of a plurality of second light components among the plurality of first light components emitted from the illumination unit and emits parallel light, the plurality of second light components entering the drip chamber, propagating in parallel with each other inside the drip chamber, being emitted from the drip chamber, and being at least partially refracted when emitted from the drip chamber; a light-converging element that converges the parallel light emitted from the first light converter; and an image sensor that converts the light emitted from the light-converging element into an image.
This measurement device comprises: a drip probe which is provided with a sensor and has a light source and a camera facing each other, and which, when attached to a drip tube, uses the sensor to sequentially detect falling droplets passing through an area above the imaging range of the camera inside the drip tube, irradiates the drip tube with light from the light source, and uses the camera to capture an image of the drip tube; and a controller which starts the operation of the camera each time a falling droplet is detected by the drip probe, and stops the operation of the camera after a certain period of time has elapsed.
A gas exchange system (50) is provided with: an artificial lung (18) for exchanging gas with blood via a gas exchange membrane (29); a pressure control valve (56) provided on a gas discharge line (42) for discharging gas from a gas flow path (38) of the artificial lung (18); a pressure sensor (54) for detecting the pressure of the gas flow path (38); and a control unit (74) for controlling the pressure control valve (56) so that the pressure of the gas flow path (38) is within a predetermined pressure range.
[Problem] To provide: an electron beam irradiation apparatus capable of improving the product quality of an irradiation target by maintaining a constant distance between an emission surface of an electron beam irradiation unit and the irradiation target, while suppressing an increase in the amount of inert gas used; and a method for manufacturing a medical instrument. [Solution] A screen part (140) provided in an electron beam irradiation apparatus (10) has a magnet body part (146) and a partition part (147) positioned closer to an emission surface (111) than the magnet body part, wherein the magnet body part is configured to attract a part of a medical elongated body to the partition part (147) using the magnetic force of the magnet body part in a state in which a part of a medical elongated body (300A) is disposed in a space (130a) located between the emission surface (111) and the screen part (140), .
This measurement device comprises: an infusion probe that, when attached to an infusion tube, sequentially detects falling droplets inside the infusion tube by means of a sensor, irradiates the infusion tube with light from a light source, and uses a camera to capture an image of the infusion tube; and a controller that controls the infusion probe. When a first falling droplet is detected by the infusion probe during operation of the camera, the controller estimates the volume of the first falling droplet using the image captured by the infusion probe, stops operation of the camera, uses the result of estimating the volume of one or more falling droplets including the first falling droplet as a basis to calculate a predicted falling time at which a second falling droplet will occur after the first falling droplet, and resumes operation of the camera by the calculated predicted falling time.
Provided is a medical instrument having a coating layer (surface lubricating layer) having excellent lubricity (slidability) and durability (in particular, sliding durability). A method for manufacturing a medical instrument according to the present invention is a method for manufacturing a medical instrument including a substrate layer and a surface lubricating layer supported on at least a portion of the substrate layer, the method comprising: preparing a coating liquid that contains a block copolymer having a reactive monomer-derived constitutional unit (A) having an epoxy group and a hydrophilic monomer-derived constitutional unit (B), a chlorine-containing compound having a chlorine atom and being water-soluble, and a solvent; and bringing the coating liquid into contact with the substrate layer.
A drug solution administration device (10A) comprises a seal member (130) that covers a distal end part (160) of a syringe (16) in an initial state and maintains a sealed state of the distal end part (160). Through the implementation of a connection operation from an initial position toward an opened position, a connection part (42) punctures, with a puncturing part (512), an edge section (134) of the seal member (130) and ruptures a protection part (132). The seal member (130) is opened by rupturing the protection part (132). When the connection part (42) further implements a connection operation at the opened position, the connection part (42) moves to a connection position.
Provided are a computer program, an information processing method, and an information processing device that make it possible to simplify diagnosis of malnutrition and improve the accuracy of the same. The present invention causes a computer to execute processing of: outputting patient data on a patient; upon reception of an instruction to implement a malnutrition diagnosis for the patient, outputting a first screen that includes a plurality of criteria for determining whether or not the patient has malnutrition and objects representing selection or non-selection of the respective criteria; and in accordance with the selected criteria, outputting either a second screen indicating that the patient does not have malnutrition or a third screen indicating that the patient has malnutrition.
G16H 20/60 - ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to nutrition control, e.g. diets
11.
LIQUID MEDICINE ADMINISTRATION DEVICE AND DRIVE UNIT
A liquid medicine administration device (10) comprises: a cartridge (16) having a reservoir (22) and a plunger (24); and a drive unit (18) to which the cartridge (16) is detachably attachable. The drive unit (18) comprises a detection structure (500) capable of detecting a mounting completion state of the cartridge (16) with respect to the drive unit (18) when the cartridge (16) is mounted to the drive unit (18).
A guide wire is provided that is capable of moderating a change in rigidity at a position where the guide wire bends during selection of a branch vessel, and effectively suppressing the occurrence of prolapse. A guide wire (10) comprises: a core material (20) made of a superelastic metal and comprising a distal straight portion (21) having a constant outer diameter, a tapered portion (22) disposed on the proximal side of the distal straight portion (21) and having an outer diameter that gradually increases toward the proximal side, and a proximal straight portion (23) disposed on the proximal side of the tapered portion (22) and having a constant outer diameter, the core material (20) having a heat-treated portion (24) extending from the distal end of the distal straight portion (21) to at least a part of a distal end section of the tapered portion (22); a coil (30) disposed so as to be in close contact with the outer surface of the heat-treated portion (24) of the core material (20); and a resin coating layer (40) covering the core material (20) and the coil (30). The heat-treated portion (24) has, in the tapered portion (22), a transition portion (27) in which a thermal load decreases from the distal side toward the proximal side.
A guide wire is provided that is capable of suppressing vascular injury and detachment of a coil from a core wire, and that has high peripheral reachability. A guide wire (10) comprises an elongated flexible core wire (20) and a coil (30) formed by winding a coil wire (31) so as to be in close contact with the outer surface of the core wire (20), wherein the core wire (20) has a protruding portion (27) that protrudes from the distal end of the coil (30) toward the distal side, a distal end fixing member (60) that secures the core wire (20) and the distal end of the coil (30) has an outer diameter tapering portion (61) that covers the side surface of the protruding portion (27) and gradually decreases in outer diameter from the distal end of the coil (30) toward the distal end of the core wire (20), and a flat portion (62) that covers the distal end of the protruding portion (27), and the core wire (20), the coil (30), and the distal end fixing member (60) are covered with a flexible resin coating layer (40).
[Problem] To provide an electron beam irradiation device capable of reducing the amount of inert gas used and improving the product quality of an object being irradiated by keeping the distance between the emission surface of an electron beam irradiation part and the object being irradiated constant. [Solution] A chamber part 130 of an electron beam irradiation device 10 is provided with, in an opening 133, a guide part 135 that connects the outside of the chamber part 130 and the inside of the chamber part 130 and guides part of an object 300 being irradiated from the outside of the chamber part to a screen part 140. The guide part extends from the position of the opening toward the screen part at a position closer to the screen-part side than an ejection port. A second end 137 of the guide part is positioned closer to a proximal-end side than an emission surface 111 of an electron beam irradiation part 110 in the longitudinal direction of the chamber part. An ejection port of an inert gas supply part is positioned closer to the proximal-end side than the emission surface in the longitudinal direction of the chamber part, is positioned on the emission-surface side facing the screen part, and is inclined from the emission-surface side toward the screen-part side.
A drug solution administration device (10A) comprises: a connection part (42) that can communicate with a distal end part (160) of a syringe (16) by being connected thereto; and a sealing member (130) that can seal the distal end part (160) of the syringe (16). When a connecting operation in which the connection part (42) relatively moves in the proximal end direction from an initial state with respect to the distal end part is performed, the connection part (42) moves to a contact position where the connection part (42) is in contact with edge portions (1341, 1342) of the sealing member (130). When the connecting operation is further performed, the connection part (42) moves from the contact position to an opening position where the sealing member (130) is broken. When the connecting operation is further performed at the opening position, the connection part (42) moves to a connected position where the connection part (42) and the syringe (16) are connected.
An information processing device (14) is provided with: a calculation unit (42) for calculating a carbohydrate-to-insulin ratio (CIR) and an insulin sensitivity factor (ISF) that make it possible to minimize an objective function relating to the time during which glucose levels in time series data inferred by a simulation model for inferring time series data of glucose levels of a patient according to insulin dosage fall outside a target range; and a generation unit (44) for generating information indicating the carbohydrate-to-insulin ratio and the insulin sensitivity factor calculated by the calculation unit.
G16H 20/10 - ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to drugs or medications, e.g. for ensuring correct administration to patients
A drive device according to the present disclosure can be connected to an image diagnosis catheter that is provided with an ultrasonic transmission/reception unit, and is provided with: a drive motor; a slip ring that can rotate together with the ultrasonic transmission/reception unit; a brush that is electrically connected to the slip ring by coming into contact with the slip ring; and a power transmission unit that is capable of transmitting the driving force of the drive motor to the slip ring. A replaceable unit that is provided with the slip ring is configured to be attachable to or detachable from a device body that is provided with the drive motor between an attached state and a detached state. The attached state is a state in which the driving force of the drive motor is transmitted to the slip ring by the power transmission unit, and the detached state is a state in which the driving force of the drive motor is not transmitted to the slip ring by the power transmission unit.
An image diagnostic apparatus according to the present disclosure is provided with: a catheter connection unit; a drive motor; a control unit; a power supply connection unit that can be connected to an external power supply or a power storage unit; and a power supply switch that can change configuration between a connection configuration in which the drive motor and the external power supply connected via the power storage unit or the power supply connection unit are electrically connected and a disconnection configuration in which same are electrically disconnected. The power supply switch is pressed by a connection member, which is one of an image diagnostic catheter and an adapter, in a state in which the connection member is connected to the catheter connection unit to be in the connection configuration, and is released from the connection member to be in the disconnection configuration in a state in which the connection member is not connected to the catheter connection unit.
Provided is, for example, a program for associating a location in a contrast-enhanced image with a cross-sectional tomogram in which the location is shown. This program causes a computer to execute a process for acquiring a plurality of cross-sectional tomograms that are generated via three-dimensional scanning using an image acquiring catheter and a plurality of angiograms (61) that depict the image acquiring catheter which is performing the three-dimensional scanning, generating a route (633) of the image acquiring catheter in a reference image that is selected from the acquired plurality of angiograms (61), acquiring the position of the image acquiring sensor from each of the angiograms (61), determining the position of the image acquiring sensor in the route (633) in each of the angiograms (61), and identifying the position of each of the cross-sectional tomograms in the route (633) on the basis of the frame rate of the angiograms (61) and the frame rate of the cross-sectional tomograms.
A61B 6/46 - Arrangements for interfacing with the operator or the patient
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment
A61B 6/12 - Arrangements for detecting or locating foreign bodies
A61B 6/50 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body partsApparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific clinical applications
A61B 8/12 - Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
20.
IN-VIVO INDWELLING STENT AND STENT DELIVERY SYSTEM
An in-vivo indwelling stent 1 comprises a stent body 10 and a drug-containing covering part 3 that is provided to the outer surface of the stent body 10. The stent body 10 has a linear first strut part 23, a linear second strut part 24, and a bent part 21, 22 that connects the linear first strut part 23 and the linear second strut part 24. The stent 1 has a first drug-containing covering part 30 that covers the first strut 23 and second strut 24 parts, and a second drug-containing covering part 35 that covers an inner edge portion of the bent part, but does not have a drug-containing covering part on an outer edge portion of the bent part.
A61F 2/915 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
A61F 2/966 - Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
A liquid medicine administration device (10) comprises a cartridge (16) and a drive unit (18). The cartridge (16) includes a reservoir (22) capable of accommodating a liquid medicine (M), and a plunger (24) provided in such a manner as to be capable of moving in the axial direction of the reservoir (22) in order to discharge the liquid medicine (M) from the reservoir (22). The drive unit (18) includes a drive mechanism (40) for driving the plunger (24) in the axial direction, and has the cartridge (16) detachably provided thereto. The plunger (24) is accommodated in the reservoir (22). The drive mechanism (40) biases the plunger (24) toward the leading end direction.
A defoaming device (50) for removing bubbles (B) adhering to an inner surface (112s) that forms a filling chamber (112) for a liquid (L) in a prefilled syringe (100), the defoaming device (50) comprising: a syringe holder (35) that holds the prefilled syringe (100) with the tip of the prefilled syringe (100) facing upward; and a vibration mechanism (20) that applies a horizontal impact to the prefilled syringe (100) to thereby vibrate the prefilled syringe (100).
A61M 5/36 - Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular wayAccessories therefor, e.g. filling or cleaning devices, arm rests with means for eliminating or preventing injection or infusion of air into body
A drug solution administration device (10A) is provided with a plunger holding structure (802) whereby a plunger (22) biased toward a tip direction by the resilient force of a resilient member (223) is held at a pre-activation position. The state in which the plunger (22) is held by the plunger holding structure (802) is released by performing a second operation in which the trigger member (14) moves relative to a housing (12) in the tip direction from the first position. The plunger (22) moves relative to a syringe (16) in the tip direction.
A drug solution administration device (10) comprises: a cartridge (16) having a reservoir (22) and a plunger (24); and a drive unit (18) to/from which the cartridge (16) can be attached/detached. The drive unit (18) comprises a detachment prevention mechanism (66) provided to an inner housing (38) so as to be openable and closable. The detachment prevention mechanism (66), in an open position, allows detachment of the cartridge (16) from the inner housing (38). The detachment prevention mechanism (66), in a closed position, prevents detachment of the cartridge (16) mounted to a mounting part (20), from the inner housing (38).
An information management system (10) comprises a drug solution administration device (12) and an information management device (14). The drug solution administration device comprises a transmission control unit (104) that transmits information acquired using a sensor (86) provided to the drug solution administration device to the information management device. The information management device comprises a reception control unit (124) that receives the information transmitted by the transmission control unit and a determination unit (128) that, on the basis of the information received by the reception control unit, determines whether a drug solution administration amount has reached a predetermined required administration amount.
Provided are: a catheter configured so that even if a tensile force or a compressive force acts on a tube in which a reinforcement body is embedded, it is possible to curb damage to the tube in the vicinity of an end the reinforcement body; and a method for manufacturing the catheter. A catheter (10) comprises: a tip-end-side movable tube (31); a base-end-side movable tube (32); a wire fixing tube (90) disposed on the radial outer side of the base end of the tip-end-side movable tube and the tip end of the base-end-side movable tube; a first joining part (91) that joins the outer peripheral surface of the tip-end-side movable tube (31) and the inner peripheral surface of the wire fixing tube (90); a second joining part (92) that joins the outer peripheral surface of the base-end-side movable tube (32) and the inner peripheral surface of the wire fixing tube (90); and a reinforcing part (93) that extends from the base-end surface of the wire fixing tube (90) in the base-end direction and that is fixed to the outer-peripheral surface of the base-end-side movable tube (32). The base-end-side movable tube (32) includes: a rigid section (37) in which a reinforcing body (35) is embedded; and a flexible section (38) that is disposed further toward the tip-end side than the tip end of the reinforcing body (35) and that has a smaller outer diameter than the rigid section (37). The base end of the reinforcing part (93) is located further toward the base-end side than the tip end of the rigid section (37).
A61F 2/966 - Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
Provided are: a suction catheter that can be inserted into a narrow biological lumen and can effectively suction a wide range; and a suction system. This suction catheter (10) comprises: a deformable tubular distal end tip (23) comprising a distal end opening (32); and a base shaft (22) disposed on the proximal end side of the distal end tip (23) and comprising a proximal end opening (24) at the proximal end. The suction catheter (10) has a main body tube (20) in which a lumen (21) communicating from the distal end opening (32) to the proximal end opening (24) is formed. The cross-sectional shape of the inner peripheral surface of the distal end opening (32) has lengths in a first direction (Y) and a second direction (Z) perpendicular to the first direction (Y). A second length (L2) in the second direction (Z) is longer than a first length (L1) in the first direction (Y). The cross-sectional shape of the inner peripheral surface of the base shaft (22) is circular, and the distal end opening (32) can be deformed by inserting, into the lumen (21), a dilator (60) having an outer diameter that is longer than the first length (L1), shorter than the second length (L2), and equal to or less than the inner diameter of the base shaft (22).
[Problem] To improve the pressure resistance of a tissue reinforcing material. [Solution] A tissue reinforcing material has a sheet-like body 10 that includes fibers composed of biodegradable material. The body 10 has formed therein a plurality of through-holes 11 and comprises a fused part 40 which is formed from fibers gathered and fused around the through-holes. The volume density of the body is 0.15 g/cm3 or less, and the porosity of a portion of the body excluding the through-holes is 50% or more.
A61B 17/11 - Surgical instruments, devices or methods for closing wounds or holding wounds closedAccessories for use therewith for performing anastomosisButtons for anastomosis
A61F 2/04 - Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
[Problem] To improve the adhesion effect at an anastomotic site by a tissue reinforcing material. [Solution] The present invention has a sheet-shaped body portion 10 including fibers composed of a biodegradable material. When an equivalent circle diameter calculated from the area of a void portion in which no fibers are present is measured in a plan view seen along a thickness direction X of the body portion 10, the size distribution ratio of the equivalent circle diameters of the void portions is such that the total area of the void portions having an equivalent circle diameter of less than 400 μm is 1.0-25% inclusive with respect to the total area of the body portion, and the total area of the void portions having an equivalent circle diameter of 400-1000 μm inclusive is 3.3-43% inclusive with respect to the total area of the body portion.
[Problem] To provide an insertion tool that enables an operator to easily and accurately confirm a portion serving as a reference for the site of uterine resection. [Solution] An insertion tool 10 includes a cylindrical body part 100 to be inserted into the vagina N. The body part includes: a lumen 105; a first portion 110 provided to a portion including a tip 101 where a tip opening 101a communicating with the lumen is located; and a second portion 120 located closer to the base end side than the first portion. At least a part of the first portion has a light-emitting part 130 that emits light by fluorescence.
The purpose of the present invention is to provide a means capable of improving the thrombus-capturing capability of a thrombus capture device (in particular, a thrombus capture device provided with a metal substrate) by imparting excellent thrombus adhesiveness. The above problem is solved by a thrombus capture device including a metal substrate and a functional layer bonded to the metal substrate, the functional layer including a polymer containing a structural unit A and a structural unit B covalently bonded to the structural unit A, the structural unit A being derived from a binding monomer having a phosphoric or phosphonic acid group and an ethylenically unsaturated group, the structural unit B being derived from a cationic monomer having an ethylenically unsaturated group, wherein the polymer has, on a side chain thereof, a cationic functional group derived from the cationic monomer.
A61L 33/00 - Antithrombogenic treatment of surgical articles, e.g. sutures, catheters, prostheses, or of articles for the manipulation or conditioning of bloodMaterials for such treatment
Provided are a computer program, an information processing method, and an information processing device capable of improving reliability in assessment of low nutrition and reducing a data input burden on a user. The present invention causes a computer to execute a process for: acquiring first group data including data pertaining to the weight, data pertaining to the BMI, and data pertaining to the muscle mass of a subject, and second group data including data pertaining to the dietary intake and data pertaining to a medical condition of the subject; and determining, on the basis of the acquired first group data and second group data, the degree of hyponutrition of the subject from a plurality of degrees of hyponutrition representing the degree of food intake deficiency.
G16H 10/00 - ICT specially adapted for the handling or processing of patient-related medical or healthcare data
G16H 50/30 - ICT specially adapted for medical diagnosis, medical simulation or medical data miningICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for calculating health indicesICT specially adapted for medical diagnosis, medical simulation or medical data miningICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for individual health risk assessment
33.
PROGRAM, INFORMATION PROCESSING METHOD, AND INFORMATION PROCESSING DEVICE
This program causes a computer to execute processing for: acquiring registration information including the usage history of a consumable used in a catheter treatment; and generating a report on the catheter treatment by providing the registration information and a catheter treatment report-creation instruction to a language model. Here, the time and date when identification information of the consumable is read and the identification information may be saved as registration information together with any of inventory, usage, and disposal information.
G16H 40/00 - ICT specially adapted for the management or administration of healthcare resources or facilitiesICT specially adapted for the management or operation of medical equipment or devices
Provided is an information processing method including: acquiring a query relating to preparation of a referral letter for a patient, patient information of the patient, and referral-destination attributes that are attributes of a referral-destination doctor; and generating a referral letter corresponding to the referral-destination attributes by inputting the query, the patient information, and the referral-destination attributes to a language model. The referral-destination attributes may be acquired from an attribute database that stores, for each doctor, attributes including a specialty, a career history, and an affiliated clinic.
In the present invention, a program causes a computer to execute processing for: acquiring time series data indicating the glucose level and the lactate level of a patient in a time series; estimating the blood glucose level of the patient after a prescribed period of time on the basis of the time series data of the glucose level and the lactate level; and determining a dosage of insulin to the patient on the basis of the estimated blood glucose level. Preferably, the program estimates the blood glucose level after a prescribed period of time by inputting the acquired time-series data of the glucose level and the lactate value into a model trained so as to estimate the blood glucose level after the prescribed period of time when the time-series data of the glucose level and the lactate level is input.
G16H 20/10 - ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to drugs or medications, e.g. for ensuring correct administration to patients
A drug solution administration device according to the present invention comprises a pump body and is for administration of a drug solution that has been filled into a reservoir. The pump body comprises a pump that delivers the drug solution that has been filled into the reservoir and a control unit. During delivery of the drug solution, the control unit repeats a first operation and a second operation in response to the pressure of the drug solution in a passage that leads the drug solution to the outside of the reservoir having reached a predetermined reference pressure value until a prescribed amount of the drug solution is delivered. The first operation suspends delivery of the drug solution by the pump, and the second operation restarts delivery of the drug solution after a predetermined fixed amount of time has passed from suspension of the delivery of the drug solution.
A male connector according to the present disclosure comprises: a housing; a conduit member; and a valve body. The housing includes a housing body and a moving body. In a plan view seen along a removal direction, the moving body includes an edge section that surrounds the periphery of the valve body, and the valve body includes a protruding section that protrudes from the edge section in an insertion direction. In the plan view, the protruding section is adjacent to the inner side of the edge section, and includes an inclined surface that is inclined away from the edge section in the insertion direction as the distance from the edge section increases. The inclination angle of the inclined surface with respect to a plane perpendicular to an extension direction changes so as to decrease in the insertion direction.
This medication management device comprises an acquisition unit, a storage unit, and a control unit. The acquisition unit acquires drug administration information including an administration amount and an administration time of a drug for a patient. The storage unit stores past drug administration information of the patient as drug administration history information. The control unit estimates an in-vivo drug concentration of the patient on the basis of the drug administration history information, and executes, on the basis of the estimated in-vivo drug concentration of the patient, a process determined from a plurality of different processes.
G16H 20/10 - ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to drugs or medications, e.g. for ensuring correct administration to patients
A stent delivery system according to the present disclosure comprises a long shaft body, a balloon, and a tubular stent. The balloon in a contracted form comprises a blade part that includes an outer fold-back portion and is folded in the circumferential direction of the shaft body so as to follow along the shaft body. The stent comprises a plurality of annular parts each extending in a wavy line shape so as to repeat sparse sections and dense sections in the circumferential direction. The plurality of annular parts are connected along the longitudinal direction of the shaft body so as to form a sparse section region in which the sparse sections are arranged in a line along the longitudinal direction of the shaft body, and a dense section region in which the dense sections are arranged in a line along the longitudinal direction. The outer fold-back portion of the blade part of the balloon is covered by either the sparse section region or the dense section region of the stent.
Provided is a manufacturing method suitable for manufacturing a puncture needle having, when viewed along an axial direction of a cylindrical body part, a blade surface part that has a half-angle shape part having a shape along a V-shape protruding downward and an arc shape part having a shape along an arc shape protruding upward. This method for manufacturing a puncture needle includes performing a first molding step, in which a metal material formed in a cylindrical body part is sandwiched between a first mold and a second mold to mold the half-angle shape part.
A61M 5/32 - NeedlesDetails of needles pertaining to their connection with syringe or hubAccessories for bringing the needle into, or holding the needle on, the bodyDevices for protection of needles
41.
COMPUTER PROGRAM, INFORMATION PROCESSING DEVICE, AND INFORMATION PROCESSING METHOD
Provided are a computer program with which the privacy of a subject can be protected, an information processing device, and an information processing method. This computer program causes a computer to execute processing for acquiring brain wave data of a subject from a brain wave sensor attached to the subject, determining whether the brain waves of the subject are normal or abnormal on the basis of the acquired brain wave data, setting a watching unit for watching over the subject to an ON state in accordance with the brain wave determination result, and executing a determination test for determining brain dysfunction using watching data acquired from the watching unit.
G16H 50/20 - ICT specially adapted for medical diagnosis, medical simulation or medical data miningICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for computer-aided diagnosis, e.g. based on medical expert systems
A61B 5/374 - Detecting the frequency distribution of signals, e.g. detecting delta, theta, alpha, beta or gamma waves
G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
G08B 25/04 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using a single signalling line, e.g. in a closed loop
Provided are a catheter capable of suppressing generation of foreign matter from a joint section that joins a traction wire to a tubular member, and capable of preventing the joint section from interfering with other members, and a method for manufacturing the catheter. A catheter (10) comprises: a movable tube (31) that is movable along the longitudinal direction; a wire fixing tube (90) that is disposed on the radial outer side of the proximal end of the movable tube (31) and extends beyond the movable tube on the proximal end side (31); at least one traction wire (80) that has a distal end and a proximal end and is sandwiched between the movable tube (31) and the wire fixing tube (90); and a first joint section (91) that is disposed between the outer peripheral surface of the movable tube (31) and the inner peripheral surface of the wire fixing tube (90) and joins the traction wire (80) to the movable tube (31) and the wire fixing tube (90). At least a portion of the proximal end of the first joint section (91) in a region sandwiched between at least the traction wire (80) and the wire fixing tube (90) in the longitudinal direction of the movable tube (31) is located on a reference position (P) where the proximal end of the movable tube (31) is located or farther to the distal end side than the reference position (P).
In the present invention, a control unit (90) of an extracorporeal circulation device (1) capable of ensuring an ideal blood flow rate for a patient when performing VA-ECMO comprises: a calculation unit (91) that calculates an ideal flow rate and pump head pressure from patient-specific information; and a transmission unit (92) that transmits, to a fluid replacement device (70) for performing fluid replacement, water amount data obtained through measurement by a measurement device (80) for measuring the water amount of the patient. The control unit (90) gives a fluid replacement instruction to the fluid replacement device (70) via the transmission unit (92) on the basis of the pressure of the inside of a blood circuit (20) measured by pressure measurement units (45, 46), the flow rate of the inside of the blood circuit (20) measured by a flow rate measurement unit (47), and the water amount data obtained through measurement by the measurement device (80).
A61M 60/109 - Extracorporeal pumps, i.e. the blood being pumped outside the patient’s body incorporated within extracorporeal blood circuits or systems
A61M 60/515 - Regulation using real-time patient data
A suture thread holding device according to the present disclosure comprises a first member and a second member. The first member and the second member can move relative to each other to change form between a first form, in which an opening is defined, and a second form, in which a suture thread can be gripped between the members. The first member comprises a pair of facing surfaces that define a gap. The second member comprises an insertion part that is inserted into the gap when the members are in the second form. If the direction in which the second member moves relative to the first member when the first member and the second member change from the first form to the second form is defined as an insertion direction, the insertion part comprises a contact part that can come into contact with at least one of the pair of facing surfaces defining the gap as a result of the second member moving in the insertion direction relative to the first member in a state where the suture thread has not passed through the opening.
A61B 17/04 - Surgical instruments, devices or methods for closing wounds or holding wounds closedAccessories for use therewith for suturing woundsHolders or packages for needles or suture materials
An extracorporeal circulation system (10) is provided with: a holder unit (12) integrally having a holder part (18) to which an artificial lung (100) is attached, and a pump drive part (20) for rotating a blood pump (110); and an input part (67) provided separately from the holder unit (12). The holder unit (12) has a pump control part (52) that controls the pump drive part (20) on the basis of information from a sensor for measuring physical property parameters in the circuit and information from the input part (67).
A61M 60/113 - Extracorporeal pumps, i.e. the blood being pumped outside the patient’s body incorporated within extracorporeal blood circuits or systems in other functional devices, e.g. dialysers or heart-lung machines
A61M 60/419 - Details relating to driving for non-positive displacement blood pumps the force acting on the blood contacting member being permanent magnetic, e.g. from a rotating magnetic coupling between driving and driven magnets
A61M 60/515 - Regulation using real-time patient data
A61M 60/523 - Regulation using real-time patient data using blood flow data, e.g. from blood flow transducers
A61M 60/531 - Regulation using real-time patient data using blood pressure data, e.g. from blood pressure sensors
An extracorporeal circulation system (10) comprises: a holder unit (12) having a holder part (18) to which an artificial lung (100) for performing gas exchange is attached; and a holder (150) that can be attached to and detached from the holder unit (12) and can hold the holder unit (12). The holder (150) has an orientation-changing mechanism (164) capable of changing the orientation of the holder unit (12) with respect to the vertical direction in a connected state in which the holder (150) is connected to the holder unit (12).
A61M 60/113 - Extracorporeal pumps, i.e. the blood being pumped outside the patient’s body incorporated within extracorporeal blood circuits or systems in other functional devices, e.g. dialysers or heart-lung machines
A61M 60/419 - Details relating to driving for non-positive displacement blood pumps the force acting on the blood contacting member being permanent magnetic, e.g. from a rotating magnetic coupling between driving and driven magnets
A61M 60/515 - Regulation using real-time patient data
A61M 60/523 - Regulation using real-time patient data using blood flow data, e.g. from blood flow transducers
A61M 60/531 - Regulation using real-time patient data using blood pressure data, e.g. from blood pressure sensors
A61M 60/546 - Regulation using real-time blood pump operational parameter data, e.g. motor current of blood flow, e.g. by adapting rotor speed
[Problem] To provide a medical device with which it is possible to treat a stricture formed in a part of the blood vessels of the heart when performing thoracotomy in coronary artery bypass graft surgery, etc. [Solution] A medical device 1 has: a conduit 10, 20 that penetrates the wall of the coronary artery (V) and is inserted into the coronary artery; an expandable expansion part 70 that is provided at the distal end of the conduit; and an expansion means 40 that causes the expansion part to expand. A stricture formed in the coronary artery is expanded by the expansion of the expansion part.
A catheter according to the present disclosure comprises: an elongated body; an expansion body that covers the outside of the elongated body in the radial direction; and a drug that is carried on the outer surface of the expansion body or that can be contained in an inner space inside the expansion body in the radial direction and released to the outside of the expansion body in the radial direction through a plurality of release orifices formed on the expansion body. The drug is carried on the outer surface of the expansion body or can be released from the inner space of the expansion body to the outside of the expansion body in the radial direction through the plurality of release orifices such that the amount of the drug released from the expansion body toward a living body increases from the proximal side to the distal side of the elongated body in the longitudinal direction or from the distal side to the proximal side of the elongated body in the longitudinal direction.
Provided is, for example, an information processing method capable of generating an appropriate boundary line even in a cross-sectional image in which a part of a boundary is unclear. The information processing method causes a computer to execute processing for: acquiring label data (50) in which information relating to a plurality of labels including a first label is respectively associated with each portion of a cross-sectional image 59 of a blood vessel; determining a low-reliability angle range (57) in which a straight line passing through the scanning center of the cross-sectional image 59 passes through a region in which the reliability of the label data (50) is low; setting a plurality of interpolation points (517) in a region which is a boundary between a region to which the first label is assigned and a region to which the first label is not assigned, and which is outside the low-reliability angle range (57); and creating an interpolation line (518) connecting the interpolation points (517) to each other.
A61B 8/12 - Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
A61B 1/313 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor for introducing through surgical openings, e.g. laparoscopes
50.
METHOD FOR MANUFACTURING BIOMEDICAL IMPLANT, AND BIOMEDICAL IMPLANT
A method for manufacturing a biomedical implant (100) comprises a circumferential diameter reduction step for preparing a porous structure for use in a biological implant, which is to include a diameter-expandable tubular stent (10) and a porous structure (20) arranged to cover the stent and configured to expand as the stent expands, and reducing the diameter of the porous structure in the circumferential direction from a state where the porous structure has an outer diameter larger than a first outer diameter when mounting the porous structure onto the stent.
A61F 2/844 - Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents folded prior to deployment
A61F 2/90 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
A medical device according to the present disclosure comprises a first shaft, a second shaft, a volume-reducing balloon, a first vaso-occlusive balloon, a second vaso-occlusive balloon, and a third vaso-occlusive balloon, wherein: the first shaft defines a first communication lumen and at least one first communication port; the second shaft defines a second communication lumen and at least one second communication port; and the maximum expanded outer diameter of the volume-reducing balloon is greater than the maximum expanded outer diameter of any of the first vaso-occlusive balloon, the second vaso-occlusive balloon, and the third vaso-occlusive balloon.
A61B 17/12 - Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
52.
INFORMATION PROCESSING METHOD, PROGRAM, AND INFORMATION PROCESSING DEVICE
Provided are an information processing method and the like that appropriately associate an image captured by an image acquisition catheter with an image captured by angiography even for a bent blood vessel. The information processing method causes a computer to execute a process for: acquiring cross-sectional image information related to a plurality of cross-sectional images (71) of a blood vessel; acquiring, in perspective images (61), sensor position information related to the positions of a sensor used for capturing the respective cross-sectional images (71); acquiring designation of the visual field direction; and outputting either the shape of the blood vessel seen through in the acquired visual field direction or the angle relating to the visual field direction on the basis of the cross-sectional image information and the sensor position information.
A61B 6/50 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body partsApparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific clinical applications
A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment
A61B 6/12 - Arrangements for detecting or locating foreign bodies
A61B 6/46 - Arrangements for interfacing with the operator or the patient
A61B 8/12 - Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
Provided are a computer program, a blood vessel visualization device, a blood vessel visualization system, and a blood vessel visualization method capable of determining the necessity of avascularization when executing puncture. The computer program causes a computer to execute processing that includes: irradiating a prescribed site on a subject with measurement waves to acquire blood vessel information of the prescribed site; specifying the state of a blood vessel on the basis of the acquired blood vessel information; and outputting determination results with respect to the necessity of avascularization, on the basis of the specified state of the blood vessel.
This vascular access device (10A) comprises: a distal-end-side connector (12); a tube (14) with flexibility that is inserted into the distal-end-side connector (12); a proximal-end-side connector (16) that is fixed to a proximal end of the tube (14); and a hollow cover (18A) that covers the tube (14) between the distal-end-side connector (12) and the proximal-end-side connector (16) and is capable of contracting in the axial direction. The cover (18A) has a deflection suppression part (34) that suppresses deflection of the tube (14). The tube (14) protrudes from a distal end of a catheter (100) as the tube (14) moves in the distal direction relative to the distal-end-side connector (12).
A61B 5/154 - Devices for taking samples of blood specially adapted for taking samples of venous or arterial blood, e.g. by syringes using pre-evacuated means
A61M 25/06 - Body-piercing guide needles or the like
55.
INFORMATION MANAGEMENT SYSTEM, INFORMATION MANAGEMENT METHOD, PROGRAM, AND DRUG SOLUTION ADMINISTRATION DEVICE
An information management system (10) comprises a drug solution administration device (12) and an information management device (14). The drug solution administration device comprises: a determination unit (108) that determines, on the basis of a detection signal detected by a sensor (86) provided to the drug solution administration device, whether or not a drug solution administration amount has reached a predetermined necessary administration amount; and a transmission control unit (112) that transmits, to the information management device, determination result information indicating a determination result by the determination unit. The information management device comprises a reception control unit (132) that receives the determination result information transmitted by the transmission control unit.
An injection needle according to the present disclosure comprises a tubular body part that extends from a base end to a needle tip. The body part is provided with: a front-side bevel face that extends to the needle tip; a first back surface part and a second back surface part that are planar and are formed on the back side of the front-side bevel face; and a back-side bevel face that includes a first back-side bevel face part and a second back-side bevel face part positioned on the back side of the front-side bevel face. The first back surface part and the second back surface part extend substantially parallel to the longitudinal direction of the body part or extend inclined relative to the longitudinal direction in a state of approaching each other toward the needle tip. The first back-side bevel face part and the second back-side bevel face part form a ridge part extending to the needle tip at a position where the first back-side bevel face part and the second back-side bevel face part intersect with each other. The outer diameter of the body part is 0.15-0.26 mm, and the bevel face length is 0.15-0.5 mm.
A61M 5/32 - NeedlesDetails of needles pertaining to their connection with syringe or hubAccessories for bringing the needle into, or holding the needle on, the bodyDevices for protection of needles
A61M 5/28 - Syringe ampoules or cartridges, i.e. ampoules or cartridges provided with a needle
A pump mounting implement according to the present disclosure comprises: a base body that can be attached to a fluid delivery pump; and a moving body which can be attached to a pump support body capable of supporting the fluid delivery pump, and which is attached to the base body so as to be movable with respect to the base body in a state in which the base body is attached to the fluid delivery pump.
This information processing device comprises a control unit that: when input information relating to vital signs of a subject satisfies any of a plurality of predetermined alert conditions, causes a storage unit to store an alert having an alert level and an alert state corresponding to the input information in association with the subject; when the alert level of the alert associated with the subject is a first level, changes the alert state associated with the subject in response to the input information of the subject ceasing to satisfy the alert conditions; and when the alert level of the alert associated with the subject is a second level, changes the alert state of the alert associated with the subject in response to an operation by a medical worker.
An in-vivo indwelling stent 1 has a drug-containing coating portion on an outer surface, is self-expanding, and comprises: a ring-shaped body 2 provided with multiple bent portions 21, 22 with vertices on one end and an other end; and connecting portions 31, 32 connecting the multiple bent portions 21, 22. Apexes of adjacent bent portions are offset by a predetermined distance in a circumferential direction of a stent body. A distance (D1) between the apexes of adjacent bent portions is 0.485 mm or less, and the relationship between a circumferential distance Y of a stent body 10 and an axial distance X between the apexes of the bent portions satisfies the following Formula (I). (I): Y ≥ -0.0028X2 - 0.2927X + 358.87
A61F 2/915 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
A61F 2/966 - Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
60.
IN-VIVO INDWELLING STENT AND STENT DELIVERY SYSTEM
An in-vivo indwelling stent 1 is self-expanding and comprises: annular bodies 2 provided with a plurality of bent parts 21, 22 having apexes on one end side and the other end side; and connection parts 31, 32 connecting the annular bodies 2. The apexes of adjacent bent parts 21, 22 are shifted by a predetermined length in the circumferential direction of a stent body. The connection parts are provided, alternately in the axial direction, with first pattern connection parts 31 extending obliquely at a predetermined angle with respect to the central axis of the stent body, and second pattern connection parts 32 extending in a direction different from the first pattern connection parts 31.
A61F 2/915 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
A61F 2/966 - Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
61.
IN-VIVO INDWELLING STENT, STENT DELIVERY SYSTEM, AND METHOD FOR MANUFACTURING IN-VIVO INDWELLING STENT
An in-vivo indwelling stent 1 comprises a stent body 10 and a drug-containing coating part 3 provided on the outer surface of the stent body 10. The stent body includes: a linear first strut part 23 and a linear second strut part 24; and bent parts 21, 22 connecting the linear first strut part and the linear second strut part. The drug-containing coating part 3 comprises: linear part coating parts 34 for coating the linear first strut part and the linear second strut part; bent part thin coating parts 35 positioned on the bent parts and having a smaller coating thickness than the other portion of the drug-containing coating part; and thick coating parts 36 formed at both ends of each of the bent part thin coating parts.
A61F 2/915 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
A61F 2/966 - Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
Provided is a medical device capable of preventing an electrode part from falling off from an expansion body while facilitating arrangement of the electrode part from the inside to the outside of the expansion body. Provided is a medical device (10) comprising a shaft part (20) and an electrode assembly (70) having an electrode part (22), wherein an expansion body (21) has a first through-hole (61) through which the electrode assembly (70) is inserted, and a second locking part (68) that locks the electrode assembly (70) such that the electrode part (22) is arranged outside the expansion body (21); the first through-hole (61) has a maximum length (L1) along a first extension direction (X1), and has a maximum width (W1) along a first width direction (Y1); the electrode assembly (70) has an electrode arrangement part (72) and a wiring part (71); the electrode arrangement part (72) includes a first end (79) in a second extension direction (X2) and a second end (80) on the side opposite to the first end (79); the electrode part (22) is arranged through the electrode arrangement part (72); the wiring part (71) includes a first connection part (76) connected to the first end (79) of the electrode arrangement part (72); the wiring part (71) extends inside the expansion body (21) toward the shaft part (20); the electrode arrangement part (72) has a maximum width (W2); the first end (79) of the electrode arrangement part (72) has a width (W3); the first connection part (76) has a maximum width (W4); and L1 > W2 ≥ W3 > W1 > W4 is satisfied.
Provided are an information processing method and the like capable of supporting determination of a state of a heart on the basis of feature amounts calculated from an electrocardiogram, a heart sound waveform, or a pulse wave waveform. According to the present invention, a computer acquires an electrocardiogram, a heart sound waveform, and a pulse waveform of a patient. The computer acquires: a first feature amount by a first formula using a I sound position or a II sound position obtained from the heart sound waveform, a Q wave position obtained from the electrocardiogram, and a notch position and a pulse wave rising position obtained from the pulse wave waveform; a second feature amount by a second formula using a maximum amplitude of the I sound or an area obtained by time-integrating a waveform of the I sound, or the maximum amplitude of the II sound or the area obtained by time-integrating a waveform of the II sound; and a third feature amount by a third expression using an element feature amount obtained by using the pulse wave waveform. In a case in which the first feature amount to the third feature amount are input, the computer inputs the first feature amount to the third feature amount thus acquired to a trained model trained so as to output an estimated value of an intracardiac pressure of the patient, thereby acquiring the estimated value of the intracardiac pressure of the patient.
An extracorporeal circulation system (10) is provided with: a holder unit (12) integrally having a holder part (18) to which an artificial lung (100) is attached and a pump drive part (20) for rotating a blood pump (110); and a base unit (14) integrally having a display part and an input part. The base unit (14) has a connection part (62) that can be attached to and detached from at least the holder unit (12).
A61M 60/113 - Extracorporeal pumps, i.e. the blood being pumped outside the patient’s body incorporated within extracorporeal blood circuits or systems in other functional devices, e.g. dialysers or heart-lung machines
[Problem] To provide a catheter device with which a medical liquid can be transvascularly administered locally to a target site located outside a blood vessel, with which positioning of a medical device in a puncture direction can be facilitated, with which positional deviation can be prevented from occurring when the medical device punctures the target site, and with which the medical liquid and cells of the target site can be prevented from leaking into the blood vessel from a puncture hole formed in a biological tissue by the medical device. [Solution] A catheter device (100) comprises: a longitudinal axis (110a); an anchoring part (120) which anchors the catheter device at a predetermined position in a blood vessel (v); a first lumen (115) which establishes communication from a base end side to a side hole (114) provided in a side surface at a distal end side, and into which a medical device (200) for puncturing a biological tissue (b) in the vicinity of the blood vessel can be inserted; a sealing part (130) for sealing a puncture hole (h) formed in the biological tissue by the medical device; and a second lumen (116) into which an imaging device (300) can be inserted. The catheter device has at least one field-of-view limiting part (140) that limits an imaging range of the imaging device to a prescribed range. The sealing part and the field-of-view limiting part at least partially overlap each other in a longitudinal axis direction, and at least a portion of the field-of-view limiting part is further toward the distal end side in the longitudinal axis direction than the side hole.
A61M 25/04 - Holding devices, e.g. on the body in the body, e.g. expansible
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
A61B 1/313 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor for introducing through surgical openings, e.g. laparoscopes
A61B 8/12 - Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
A61B 1/018 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor characterised by internal passages or accessories therefor for receiving instruments
66.
CATHETER, TREATMENT ASSISTANCE DEVICE, AND TREATMENT METHOD
A catheter according to the present disclosure comprises: a tubular body that defines an inner housing space; and an expansion body that covers the outside of the tubular body in the radial direction. The tubular body comprises a first transmissive part in a position where the outside in the radial direction is covered by the expansion body, the first transmissive part allowing emitted light emitted from a light irradiation part housed in the housing space to be transmitted to the outside in the radial direction. The expansion body comprises a second transmissive part through which the emitted light can be transmitted to the outside in the radial direction. At least one transmissive part of the first transmissive part and the second transmissive part comprises a transmission control part in which the transmittance of the emitted light from the inside to the outside in the radial direction varies so as to increase from the proximal side to the distal side of the tubular body in the longitudinal direction or from the distal side to the proximal side of the tubular body in the longitudinal direction.
Provided is a medical device having a coating layer having excellent leak resistance (blood leak resistance) by a means different from conventional techniques. A medical device according to the present invention comprises a base material having a porous structure and a coating layer formed on at least a part of the surface of the base material. The coating layer contains a crosslinked hyaluronic acid in which a first hyaluronic acid having a viscosity-average molecular weight of 600,000 or more and a second hyaluronic acid having a viscosity-average molecular weight of 100,000 or less are crosslinked by a crosslinking agent.
An indwelling object (100) comprises: a diameter-expandable cylindrical stent (10); and a porous structure (20) that is disposed so as to cover the stent and is configured so as to be expandable in accordance with the diameter expansion of the stent, wherein the porous structure has a skeleton part (30) disposed in a mesh shape, a plurality of void parts (40) partitioned by the skeleton part, and a covering part (50) disposed so as to cover at least a portion of the outer surface of the porous structure and including a polymer material. The covering part is disposed only along the skeleton part surrounding the void parts, and is not disposed at a position corresponding to the void parts.
A61F 2/915 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
69.
IN-VIVO INDWELLING OBJECT AND METHOD FOR PRODUCING POROUS STRUCTURE
Provided is an in-vivo indwelling object capable of sufficiently expanding a stent in a radial direction while preventing expansion of a stent cover in the radial direction. The in-vivo indwelling object includes a diameter-expandable cylindrical stent, and a porous structure that is disposed so as to cover the stent and is configured so as to be expandable in accordance with the diameter expansion of the stent, wherein: the porous structure has a skeleton part disposed in a mesh shape, a plurality of void parts partitioned by the skeleton part, and a covering part disposed so as to cover at least a portion of the outer surface of the porous structure and including a polymer material; and the polymer material has a Young's modulus of greater than 0 MPa and less than 200 MPa.
A61F 2/915 - Stents in a form characterised by wire-like elementsStents in a form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
A61L 31/06 - Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
A61L 31/14 - Materials characterised by their function or physical properties
70.
BALLOON CATHETER, METHOD FOR MANUFACTURING BALLOON CATHETER, AND HEAT-SHRINKABLE TUBE
[Problem] To provide a balloon catheter, a method for manufacturing a balloon catheter, and a heat-shrinkable tube with which it is possible to prevent a decrease in the strength of a partition wall part that separates a guide wire lumen and an inflation lumen of a second shaft from each other. [Solution] A shaft part 100 of a balloon catheter 10 comprises a fusion part 140 at which a first shaft 110, a second shaft 120, and a third shaft 130 are fused to each other in the vicinity of the base end 113 of the first shaft. The shaft part has a partition wall part 150 that is formed along a predetermined range from the base end of the first shaft towards the tip side, and that separates a guide wire lumen 115 and an inflation lumen 125 of the second shaft. The partition wall part has a first region 150A that includes the base end 153 of the partition wall part, and a second region 150B located closer to the tip side than the first region of the partition wall part. The thickness of the second region with respect to the thickness of the first region is greater than 19% and less than 48%.
[Problem] To suppress unintended deformation of staples when biological organs are anastomosed by the staples in a state in which a tissue reinforcement device is sandwiched between the biological organs. [Solution] The present invention comprises a plurality of openings 50 that are larger or longer than a through-hole 11 of a body section 10 and are defined by a circumferential edge. Of the plurality of openings, at least two adjacent openings disposed on concentric circles centered on the center of an insertion part 30 are disposed within 60 degrees in the circumferential direction without any portion of the circumferential edges of the openings missing, and the interval between center of gravity positions of the adjacent openings is 45 degrees or less in the circumferential direction.
A61B 17/11 - Surgical instruments, devices or methods for closing wounds or holding wounds closedAccessories for use therewith for performing anastomosisButtons for anastomosis
A61B 17/115 - Staplers for performing anastomosis, e.g. in a single operation
[Problem] To provide a catheter for image acquisition in which bonding strength between an outer tube, a film sensor, and a support is increased. [Solution] A catheter (100) for image acquisition includes: an inner tube (10) having a first lumen (15) extending in the axial direction; a sensor unit (30) arranged at a tip-end portion (11) of the inner tube and having a plurality of transducers (45a) circumferentially arranged in a ring shape, the transducers for transmitting and receiving ultrasound within a biological lumen; and an outer tube (20) arranged so as to cover at least a portion of the inner tube at a position closer to the base-end side than the sensor unit so as to form a second lumen (25) between the sensor unit and the inner tube. The sensor unit includes a film sensor (40) having a plurality of transducers arranged thereon, and a support (50) for supporting the film sensor, where at least a portion of the film sensor is sandwiched between the support and the outer tube.
[Problem] To provide a method for manufacturing an image acquisition catheter in which even a high-viscosity adhesive can be used, and in which the adhesive can easily be disposed. [Solution] This method for manufacturing an image acquisition catheter 100 includes: a step of applying an adhesive 56 to a film sensor 40; a step of aligning, with respect to a shaft part 54 of a support body 50, the region of the film sensor to which the adhesive has been applied; and a step of winding the film sensor around the support body in a state in which the adhesive, among the film sensor and the adhesive, is disposed facing the shaft part of the support body.
A catheter set according to the present disclosure comprises: a balloon catheter provided with a balloon; and an adapter that has internally defined therein an insertion hole allowing the balloon catheter to be inserted therethrough, and that is connectable to an endoscope in a state in which the insertion hole is in communication with a forceps channel of the endoscope. The insertion hole of the adapter is capable of accommodating at least a portion of the balloon of the balloon catheter that is removed from the forceps channel of the endoscope.
A61B 1/018 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor characterised by internal passages or accessories therefor for receiving instruments
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
A medical liquid delivery system (10) delivers a collection object (L) generated in a living body (B) to a medical bag (16) through a tube (14). The medical liquid delivery system (10) is provided with an occluding part (22) capable of blocking the circulation of the collection object (L) by occluding an intermediate part (143) of the tube (14). The medical liquid delivery system (10) further comprises a first state monitoring part (241) that monitors the state of the tube (14) at a first position (P1), and a second state monitoring part (242) that monitors the state of the tube (14) at a second position (P2). On the basis of the difference between a first state parameter at the first position (P1) and a second state parameter at the second position (P2), a control part (263) releases the blocked state of the tube (14) by the occluding part (22).
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
At least the distal end of a medical detection device (19) is inserted into the body cavity (C) of a living body (B). The medical detection device (19) comprises: an oxygen partial pressure sensor (192) capable of detecting the oxygen partial pressure of a liquid inside the body cavity (C); and a temperature sensor (194) capable of detecting the body cavity internal temperature, which is the temperature inside the body cavity (C). The medical detection device (19) further comprises a pressure transmission unit (193). The pressure transmission unit (193) is disposed inside a catheter (12) inserted into the body cavity (C). The pressure transmission unit (193) has: a pressure receiving part (281) that can be deformed by receiving pressure; and a pressure transmission lumen (282) that can receive, at the pressure receiving part (281), the body cavity internal pressure, and transmit the body cavity internal pressure as air pressure.
A medical liquid delivery system (10) is provided with a pressure reaction part (24). The pressure reaction part (24) is connected to a branch part (144) branched from an intermediate part (143) of a tube (14). The pressure reaction part (24) includes a pressure receiving part (242) that can be deformed by receiving the liquid pressure of a sampling target (L), and a state change part (243) the state of which changes in response to the deformation of the pressure receiving part (242).
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
78.
DEVICE FOR PASSING THROUGH CONSTRICTED SECTION IN BIOLOGICAL ORGAN
This device 1b for passing through a constricted section in a biological organ according to the present invention comprises: an outer tube 2c comprising a distal end opening 23, a lumen 11, a balloon 22 provided at the outer surface of a distal end section, and a balloon lumen 28; and an inner tube 3b that can be inserted into the lumen 11 and has a guide wire lumen 51. The inner tube 3b comprises a distal end section that can protrude from the distal end opening 23 of the outer tube 2c, and a constriction insertion section 52 that is provided at the distal end section and can enter a constricted section in a biological organ. The outer tube 2c comprises: a deformable section 21c that is positioned closer to the distal end side than the balloon and can change the orientation of the distal end opening 23; and a manipulation section 30 for manipulating the orientation of the distal end opening 23 in the deformable section.
Provided are a medical drive device, a medical device, and a medical device system with which it is possible to reduce cost and reduce required energy. The medical drive device (10) is capable of rotationally driving a long shaft (110) provided, at the distal end part thereof, with an action unit (112) for treatment or diagnosis, the medical drive device (10) comprising: a first rotating body (60) to which rotation can be transmitted from an input shaft (41) to which rotation of a drive source (40) rotating in one direction is transmitted; a reciprocating motion conversion mechanism (32) that converts rotation of the first rotating body (60) into reciprocating motion; and an output rotating body (90) that is mechanically connected to the reciprocating motion conversion mechanism (32) and is capable of rotating, and is capable of mechanically transmitting a rotational force to the long shaft (110). Rotation of the drive source (40) in one direction is converted via the reciprocating motion conversion mechanism (32) into rotation of the long shaft (110) in alternating directions.
A61B 17/22 - Implements for squeezing-off ulcers or the like on inner organs of the bodyImplements for scraping-out cavities of body organs, e.g. bonesSurgical instruments, devices or methods for invasive removal or destruction of calculus using mechanical vibrationsSurgical instruments, devices or methods for removing obstructions in blood vessels, not otherwise provided for
The present invention provides an information processing method and the like that can associate an area in a contrast-enhanced image and a transverse tomographic image in which an image of the area is captured. In the information processing method, a computer executes processes for: acquiring a plurality of transverse tomographic images that have been generated by three-dimensional scanning using a catheter (32) for image acquisition and an angiographic image; acquiring the position of a first landmark that is located outside a three-dimensional scanning range and the position of a second landmark located within the three-dimensional scanning range; determining a route of the catheter for acquiring the image; calculating the frame number corresponding to a first tomographic image depicting the first landmark; determining the frame number corresponding to a second tomographic image depicting the second landmark; and specifying the positions of the respective transverse tomographic images by dividing the route by the number of frames from the first tomographic image to the second tomographic image.
A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
A61B 6/46 - Arrangements for interfacing with the operator or the patient
A61B 6/50 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body partsApparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific clinical applications
A61B 8/12 - Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
81.
MEDICAL SYSTEM AND METHOD FOR OPERATING MEDICAL SYSTEM
This medical system comprises: a balloon catheter having an elongate first shaft and a balloon attached to the first shaft, the balloon catheter being for delivering, to the blood vessel wall of a blood vessel, a drug that can be activated by light emitted from a light irradiation body inserted into a lumen extending through the first shaft; an ultrasonic probe having an elongate second shaft and ultrasonic elements attached to the second shaft, the ultrasonic probe being insertable into the lumen and for transmitting ultrasonic waves toward the blood vessel wall from a plurality of positions on the first shaft along the longitudinal direction thereof and receiving reflected waves of the ultrasonic waves using the ultrasonic elements; and a controller that acquires ultrasonic information relating to the reflected waves received by the ultrasonic elements, calculates the vascular stiffness of the blood vessel corresponding to each of the plurality of positions on the basis of the acquired ultrasonic information, and outputs the calculated vascular stiffness in association with each of the plurality of positions.
A gasket 1 for a syringe is provided with a tubular body part 11, a closed distal end surface 12 positioned at the distal end of the tubular body part 11, a proximal end opening 13 positioned at the proximal end of the tubular body part 11, and a plunger fitting part 14 formed therein. The plunger fitting part 14 includes a gasket-side screw-threaded part 30 having one or more gasket-side screw threads 31 formed on the inner surface. A distal end-side inclination angle θ1, which is an inclination angle of the surface on the distal end side of each gasket-side screw thread 31 of the gasket-side screw-threaded part 30 with respect to the axis of the tubular body part 11, is larger than a proximal end-side inclination angle θ2, which is an inclination angle of the surface on the proximal end side of each gasket-side screw thread 31 of the gasket-side screw-threaded part 30 with respect to the axis of the tubular body part 11.
Provided is, inter alia, a program with which it is possible to present the puncture depth by which a living body is punctured. A program causes a computer to execute a process for: acquiring a puncture depth by which a living body is punctured by a puncture instrument; generating a display image that includes an object indicating a puncture depth that corresponds to the acquired puncture depth; and outputting the generated display image.
A61B 34/20 - Surgical navigation systemsDevices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
A61M 5/42 - Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular wayAccessories therefor, e.g. filling or cleaning devices, arm rests having means for desensitising skin, for protruding skin to facilitate piercing, or for locating point where body is to be pierced
A61M 25/06 - Body-piercing guide needles or the like
A61M 25/095 - Arrangements for enabling the detection of the internal position of the catheter, e.g. radiographically
84.
PROGRAM, INFORMATION PROCESSING METHOD, INFORMATION PROCESSING DEVICE, AND PUNCTURE ASSISTANCE SYSTEM
Provided is, inter alia, a program with which it is possible to present information that indicates the position of a catheter in a vascular access device. A program causes a computer to execute a process for: acquiring the positions of a first marker and a second marker in a vascular access device that is inserted into a living body; identifying the position of a catheter on the basis of the acquired positions of the first marker and the second marker and the positional relationship between the first marker and the catheter in the vascular access device; generating an image that indicates the identified position of the catheter; and outputting the generated image.
A61M 5/42 - Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular wayAccessories therefor, e.g. filling or cleaning devices, arm rests having means for desensitising skin, for protruding skin to facilitate piercing, or for locating point where body is to be pierced
A61B 34/20 - Surgical navigation systemsDevices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
A61M 25/06 - Body-piercing guide needles or the like
A61M 25/095 - Arrangements for enabling the detection of the internal position of the catheter, e.g. radiographically
Provided is a dilator excellent in operability in a procedure using a sheath assembly. A dilator according to the present invention comprises a base material layer and a surface lubricating layer supported on at least a part of the base material layer. The base material layer contains a polyolefin resin and a contrast agent. The surface lubricating layer contains a block copolymer having a constituent unit (A) derived from a reactive monomer having an epoxy group and a constituent unit (B) derived from a hydrophilic monomer.
This catheter (12) comprises a flexible catheter body (121). The catheter body (121) has a distal end part (20) that has a first region (261) and a second region (262) that is formed from a material harder than the first region (261) and functions as a reinforcing layer. The catheter body (121) has a thinnest part (241) at a position adjacent to a lumen (16) in the eccentric direction of the lumen (16) relative to the catheter body (121), the thinnest part (241) having the smallest radial thickness (T) of a peripheral wall part (18) of the catheter body (121). The second region (262) is disposed at least in the thinnest part (241).
The present invention provides a catheter for image diagnosis that makes it possible to visually confirm the position of a tip end, and that can suppress the occurrence of defects in a captured image. A catheter (100) for image diagnosis comprises: a sensor lumen (110a) in which is inserted a light guide (143) that is connected, at the tip end thereof, to a light transmission/reception unit (145b) for transmitting and receiving light; and a guide wire lumen (170a) in which a guide wire (W) is inserted. A guide wire insertion member (170) which constitutes the guide wire lumen has a first region (171) that is provided together with the sensor lumen in at least part of an imaging region of the light transmission/reception unit, and a second region (172) that is provided to the tip end side of the first region and that is not provided together with the sensor lumen. A colored part is formed at at least the tip-most end of the second region. The first region is lighter in color than the colored part of the second region.
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
A61B 8/12 - Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
A drug solution administration device (10A) is provided with a puncture unit (18) having a puncture needle (181) and a connection part (42) capable of communicating with the inside of a cylindrical body (161) by being connected to a tip part of a syringe (16). When a trigger member (14) performs a first operation, a connection needle (421) penetrates a sealing member (162) of the syringe (16) and communicates with the inside of the cylindrical body (161). The trigger member (14) is capable of performing a second operation and performing a third operation after the second operation.
A61M 5/20 - Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
A61M 5/32 - NeedlesDetails of needles pertaining to their connection with syringe or hubAccessories for bringing the needle into, or holding the needle on, the bodyDevices for protection of needles
A61M 5/315 - PistonsPiston-rodsGuiding, blocking or restricting the movement of the rodAppliances on the rod for facilitating dosing
A puncture unit (18) of a drug solution administration device (10A) comprises a unit body (182) and a needle hub (183) that holds a puncture needle (181) and that can be separated from the unit body (182). The puncture unit (18) further comprises a flexible tube (184) that couples the unit body (182) to the needle hub (183). The flexible tube (184) connects the puncture needle (181) and a connection needle (421) of a connection part (42). When the needle hub (183) is separated from the unit body (182), an intermediate part (603) of the flexible tube (184) is exposed to the outside of a housing (12).
A61M 5/20 - Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
A61M 5/32 - NeedlesDetails of needles pertaining to their connection with syringe or hubAccessories for bringing the needle into, or holding the needle on, the bodyDevices for protection of needles
A61M 5/315 - PistonsPiston-rodsGuiding, blocking or restricting the movement of the rodAppliances on the rod for facilitating dosing
90.
MANAGEMENT DEVICE, EXTRACORPOREAL CIRCULATION MANAGEMENT DEVICE HAVING MANAGEMENT DEVICE, METHOD FOR OPERATING MANAGEMENT DEVICE, AND PROGRAM FOR OPERATING MANAGEMENT DEVICE
The purpose of the present invention is to provide, inter alia, a management device having a display or another display unit that is easy for a user to visually recognize. A management device (10) manages an extracorporeal circulation device (1) that has an artificial lung device (2), a pump unit (3), and an extracorporeal circulation circuit (IR). The management device (10) has a control unit (111) and a display unit (113) that displays various types of information relating to the extracorporeal circulation device (1). The control unit (111) groups together various types of information (P1) relating to the extracorporeal circulation device (1) into a plurality of groups on the basis of preset relevance information. The display unit (113) has an aggregation display region in which the various types of information belonging to the respective groups are disposed in an aggregated manner.
The present invention provides a suction catheter for veins that is capable of effective suction while suppressing excessive deformation of and damage to a tip section. Provided is a suction catheter (10) for veins comprising an elongate body tube (40) and a tubular distal-end tip (50) which is fixed to the distal-end side of the body tube (40), wherein: the distal-end tip (50) has an inner tapered surface (52) at which the inner diameter decreases toward the distal end and an outer tapered surface (51) at which the outer diameter decreases toward the distal end, and is formed from a resin which is harder than the resin from which the body tube (40) is formed; and a first inclination angle (α), which is the angle at which the inner tapered surface (52) is inclined with respect to the axis of the distal-end tip (50), is less than a second inclination angle (β), which is the angle at which the outer tapered surface (51) is inclined with respect to the axis of the distal-end tip (50).
A cap removal jig (J1) comprises a container-holding member (40) and an engagement member (64A). The container-holding member (40) is capable of holding a plurality of medical containers (14) each having a plurality of container bodies (16). The engagement member (64A) is formed so as to be capable of engaging with a plurality of protective caps (18) respectively attached to the plurality of container bodies (16). The plurality of protective caps (18) can be removed from the plurality of container bodies (16) by displacing the engagement member (64A) relative to the container-holding member (40) in a state in which the engagement member (64A) is engaged with each protective cap (18) of the plurality of medical containers (14).
A medical jig (10) is provided with a holder (16) having an internal space (24), an operation member (18) capable of removing a protection cap (14) of a medical container (12) by employing a cap removal part (181), and a disinfection member (20) capable of carrying out disinfection by bringing a cap disinfection part (201) into contact with a sealing part (123) after the protection cap (14) is removed.
A jig (10A) for a collection kit is provided with: a kit holding part (62) for holding a collection kit (12A); a bottle holding member (64) which is capable of holding a plurality of culture bottles (14); a lifting/lowering mechanism (66) for moving the kit holding part (62) in the vertical direction and in a relative manner; and a rotation mechanism (68) for rotating the bottle holding member (64) about a rotation axis (CL). The bottle holding member (64) has a plurality of bottle support parts (120) that are arranged along the circumferential direction. The rotation mechanism (68) rotates the bottle holding member (64) in conjunction with an approaching operation or a withdrawing operation of the lifting/lowering mechanism (66).
A catheter according to the present disclosure comprises: a laser emission body which has a laser emission part capable of emitting a laser; a tubular member which internally partitions an insertion space through which a guide wire can be inserted, and a housing space capable of housing the laser emission body; and an expansion member which covers the outside in a radial direction of the tubular member, and which is capable of expanding and contracting in the radial direction. The tubular member is capable of transmitting, in the radial direction, the laser emitted from the laser emission part of the laser emission body housed in the housing space. The expansion member comprises a window part capable of releasing the laser or a pressure wave caused by the laser to the outside in the radial direction. The tubular member comprises a restriction part which restricts movement in the radial direction of the laser emission body housed in the housing space.
A61B 17/22 - Implements for squeezing-off ulcers or the like on inner organs of the bodyImplements for scraping-out cavities of body organs, e.g. bonesSurgical instruments, devices or methods for invasive removal or destruction of calculus using mechanical vibrationsSurgical instruments, devices or methods for removing obstructions in blood vessels, not otherwise provided for
A catheter according to the present disclosure comprises: a laser emitter; a tubular member, the inside of which are divided into a housing space capable of housing the laser emitter, and a guide wire insertion hole; and an expansion member. The tubular member includes: an inner part that is covered by the expansion member and includes a laser transmission section through which laser emitted from the laser emitter can transmit in the radial direction; and a distal end part that is continuous with the inner part on the distal side of the expansion member in the longitudinal direction of the tubular member. The inner part of the tubular member does not have the guide wire insertion hole demarcated therein and has the housing space demarcated therein. The distal end part of the tubular member does not have the housing space demarcated therein and has the guide wire insertion hole demarcated therein.
A61B 18/26 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibreHand-pieces therefor for producing a shock wave, e.g. laser lithotripsy
A catheter according to the present disclosure comprises a tubular member, an expansion member, a laser emitter, and a connector. The expansion member is provided with a window part from which a laser or a pressure wave caused by the laser can be externally emitted in the radial direction. The connector is provided with a cover part that covers the periphery of a laser-emitting part, and at least the cover part of the connector consists of a single light-transmitting material through which the laser emitted from the laser-emitting part can be transmitted in the radial direction. The connector is attached to the tubular member so as to be capable of moving relative to the tubular member along the longitudinal direction of the tubular member. The laser emitter is attached to the connector such that movement in the radial direction is restricted, and is capable of moving relative to the tubular member along the longitudinal direction in an integrated manner with the connector.
A61B 17/22 - Implements for squeezing-off ulcers or the like on inner organs of the bodyImplements for scraping-out cavities of body organs, e.g. bonesSurgical instruments, devices or methods for invasive removal or destruction of calculus using mechanical vibrationsSurgical instruments, devices or methods for removing obstructions in blood vessels, not otherwise provided for
A catheter according to the present disclosure is provided with a laser emitter, an elongated member, and an expansion member. The elongated member is provided with: an inner portion that is covered by the expansion member and that includes a laser transmission part allowing laser light emitted from the laser emitter to be transmitted therethrough in the radial direction; and a distal end portion that is continuous with the inner portion on the distal side in the longitudinal direction of the elongated member with respect to the expansion member. The expansion member is capable of releasing, outward in the radial direction, the laser light emitted from the laser emitter or pressure waves caused by the laser light. The inner portion of the elongated member defines a first insertion passage that extends in the longitudinal direction so as to include the central axis of the expansion member in an expanded state and through which the laser emitter can be inserted. The distal end portion of the elongated member defines a second insertion passage that extends in the longitudinal direction so as to include the central axis and through which a guide wire can be inserted.
A61B 18/26 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibreHand-pieces therefor for producing a shock wave, e.g. laser lithotripsy
A catheter system according to the present disclosure comprises a laser emitter equipped with a laser emission unit, and a catheter that defines an insertion space through which the laser emitter can be inserted. The catheter is equipped with a window part through which a laser emitted from the laser emission unit or a pressure wave caused by the laser can be released toward the radially outside of the catheter. The longitudinal-direction length of the laser emission unit is less than the longitudinal-direction length of the window part. The catheter is equipped with a first marker, and the laser emitter is equipped with a second marker that makes it possible to identify that the laser emission unit is arranged at the position of the window part in the longitudinal direction by being aligned with the first marker in the longitudinal direction. The second marker is disposed near the laser emission unit in the longitudinal direction.
A61B 18/26 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibreHand-pieces therefor for producing a shock wave, e.g. laser lithotripsy
A catheter according to the present disclosure comprises: a laser emitter capable of emitting a laser; a tubular member; and an expansion member covering the outside of the tubular member in the radial direction and capable of expanding and contracting in the radial direction. The expansion member is provided with an expansion body part capable of expanding in a cylindrical shape. The tubular member internally defines an insertion space through which the laser emitter can be inserted, the insertion space including a distal opening that opens to the outside of the tubular member and that is on the distal side of the expansion member in the longitudinal direction of the tubular member. The tubular member is provided, on the distal side of the expansion body part in the longitudinal direction, with a check valve that allows the flow of fluid flowing out from the insertion space through the distal opening and that restricts the flow of the fluid from the distal opening into the insertion space.
A61B 18/26 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibreHand-pieces therefor for producing a shock wave, e.g. laser lithotripsy
patents
