A sensorized surgical instrument for training users laparoscopic surgical procedures is provided. The instrument includes at least one sensor selected from a group consisting of a strain gauge, accelerometer, magnetometer, and gyroscope. The sensor is attached directly to a handle of the instrument. A shaft assembly having a tool tip is interchangeably connectable to the handle. The sensor is connected to a computer configured to provide feedback useful to the user for improving the user's surgical skills. The feedback includes the time to complete a procedure, economy of motion, smoothness of motion and the force exerted at the tool tip.
Pressure conditioning systems for supplying insufflation gas to an open-ended body conduit such as a rectal cavity during a transanal minimally invasive surgery (TAMIS) procedure can reduce billowing of walls of the body conduit. A pressure conditioning system can include a pressure storage component, an accumulator, and a flow restrictor. The pressure storage component can include a variable volume reservoir that is biased to a relatively low volume state. The flow restrictor can include insufflation tubing with a restrictor plate having a relatively low diameter orifice. The pressure storage component, accumulator, and flow restrictor can be fluidly connected in various orders in series or as side branches from a gas flow conduit. Despite a pulsed or otherwise discontinuous insufflation gas flow and leakage and absorption from the body conduit, the pressure conditioning system can maintain a constant pressure within the body conduit.
A tissue retrieval system including a tissue retrieval bag deployable from an introducer and suspended in an open configuration by support arms can include retention features to prevent inadvertent movement of the tissue retrieval bag relative to the support arms. The support arms can include protruding domes, folds, or curls to restrict sliding of the tissue retrieval bag relative to the support arms. Alternately, tension can be maintained in a cord loop coupled to an opening of the tissue retrieval bag to prevent the tissue retrieval bag from inadvertently sliding relative to the support arms.
A handle assembly for a surgical stapler can comprise a rotatable actuation shaft. The actuation shaft can have a first rotational orientation in which it can actuate a jaw assembly in a staple firing mode, and a second rotational orientation in which it can actuate a jaw assembly in a reversing mode. The handle assembly can include an articulation mechanism including a ball screw to selectively articulate the jaw assembly relative to an elongate shaft. The handle assembly can include a mechanism to lock out selection of the staple firing mode and actuation of the articulation mechanism if a reload shaft is not securely coupled to the handle assembly.
Surgical stapler systems can include a jaw assembly with one jaw defining a reload support capable of receiving and firing multiple disposable reload cartridges in a single surgical procedure. The reload cartridge can be protected by a reload cover engageable therewith. The reload cover can include snap features configured to prevent manual removal of the reload cover from the reload cartridge before proper positioning and installation in the reload support. The reload cover can desirably maintain a plurality of staples within staple pockets in the reload cartridge and can maintain a staple deployment mechanism in an unfired position.
Systems and methods for preventing the seeding of cancerous cells during morcellation of a tissue specimen inside a patient's body and removal of the tissue specimen from inside the patient through a minimally-invasive body opening to outside the patient are provided. One system includes a cut-resistant tissue guard removably insertable into a containment bag. The tissue specimen is isolated and contained within the containment bag and the guard is configured to protect the containment bag and surrounding tissue from incidental contact with sharp instrumentation used during morcellation and extraction of the tissue specimen. The guard is adjustable for easy insertion and removal and configured to securely anchor to the body opening. Protection-focused and containment-based systems for tissue removal are provided that enable minimally invasive procedures to be performed safely and efficiently.
A61B 17/3211 - Surgical scalpels or knivesAccessories therefor
A61B 17/42 - Gynaecological or obstetrical instruments or methods
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
A61B 90/50 - Supports for surgical instruments, e.g. articulated arms
Embodiments of a surgical access port system that comprises a retractor that is adapted for being coupled to a cap and that is particularly useful in natural orifice surgery are described. The retractor comprises an outer ring, wherein the outer ring is configured to be disposed proximate the natural orifice of the patient and substantially surround the orifice; a tubular body; and various stabilizing mechanisms surrounding the tubular body, sized and configured to stabilize and retain the retractor within the orifice. The stabilizing embodiments described herein are useful in all natural orifices and are of particular use in the vaginal surgery.
Devices, methods, and systems provide a surgical access device comprising an internal retractor device integrated with or coupled to a body wall or wound retractor. The wound retractor retracts an opening in a body wall into a body cavity, while the internal retractor permits a user to control the positions of internal structures within the body cavity, thereby permitting a user to define a surgical field. Embodiments of the internal retractor are adjustable.
The present invention provides a surgical training device for training laparoscopic first entry surgical techniques. The training device includes a simulated abdominal wall that is penetrable with an optical trocar. A receptacle containing a tissue simulation is located inside the receptacle. The tissue simulation is observable via scope placed inside the optical trocar. Upon penetration of the one or more of the simulated abdominal wall and receptacle, the tissue simulation appears to translate distally relative to the simulated abdominal wall. The distal translation is effected by a variety of ways including the release of negative pressure inside the receptacle upon penetration and the expansion of an elastic wall of the receptacle with the introduction of fluid under pressure into the receptacle.
Simulated tissue structures and methods of making them are disclosed. An elastic first material is placed in tension. An elastic second material is adhered to the first material while the first material is in tension. The adhered second material and the first material in tension forms a first shape of the simulated tissue structure. Tension on the first material is released. In releasing the tension of the first material, a force is exerted on the adhered second material bring the combination of the first material and the second material into a second shape. The first shape is maintained by a mold or mandrel and the second shape is the desired shape of the simulated tissue structure.
A simulated dissectible tissue model for practicing surgical skills is provided. The simulated tissue comprises a simulated anatomical structure, such as one or more artificial vessel, embedded with a silicone gel layer between two silicone layers. The simulated dissectible tissue, with or without a simulated anatomical structure, is connected to one or more artificial organ via a fiberfill layer. The fiberfill layer includes a plurality of entangled fibers embedded between two adjacent silicone layers. The fiberfill layer creates a dissection plane that permits the one or more artificial organ to be removed by spreading apart and selectively dissecting the chains of entangled fibers. Artificial nerves may be included in fiberfill layer.
Simulated tissue structures for practicing surgical techniques and methods of manufacturing those structures are provided. In particular, a realistic organ model or simulated tissue portion for practicing the removal of a tumor or other undesired tissue followed by suturing a remnant defect as part of the same surgical procedure is provided. The simulated tissue structures include a polyp simulation having a suturable mesh layer that is separable from a defect layer. A simulated colon model with interchangeable and suturable tissue pods is also provided as is a fully suturable rectum model and a rectum model with integrative suturable and removable polyp zones.
G09B 23/34 - Anatomical models with removable parts
B29C 41/08 - Coating a former, core or other substrate by spraying or fluidisation, e.g. spraying powder
B29C 41/20 - Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped articleApparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. moulding around inserts or for coating articles
B29C 41/22 - Making multilayered or multicoloured articles
B29K 83/00 - Use of polymers having silicon, with or without sulfur, nitrogen, oxygen or carbon only, in the main chain, as moulding material
A bipolar electrosurgical fusion/sealer and dissector is provided that is arranged to simultaneously fuse and cut tissue captured between jaws of the instrument. The jaws include particularly positioned, shaped and/or oriented electrodes along with a compressible landing pad to perform the simultaneous fusion and cutting of tissue. An electrosurgical generator is arranged to supply RF energy through the instrument and monitors a phase angle of the supplied RF energy and adjusts or terminates the supplied RF energy based on the monitored phase angle to optimally fuse and dissect the tissue.
A61B 18/00 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
A61B 18/12 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
A surgical simulator for surgical training is provided. The simulator includes a frame defining an enclosure and a simulated tissue model located inside the frame. The simulated tissue model is adapted for practicing a number of surgical procedures including but not limited to transanal excisions and transvaginal hysterectomies. Portions of the frame comprises a material adhesively compatible with the material of portions of the simulated tissue model to secure and suspend the simulated tissue model within the frame. The simulated tissue model may also include simulated vasculature configured to loop through apertures in the frame to secure and suspend the simulated tissue model within the frame.
An electrosurgical system can include an electrosurgical generator, a feedback circuit or controller, and an electrosurgical tool. The feedback circuit can provide an electrosurgery endpoint by determining the phase end point of a tissue to be treated. The electrosurgical system can include more than one electrosurgical tool for different electrosurgical operations and can include a variety of user interface features and audio/visual performance indicators. The electrosurgical system can also power conventional bipolar electrosurgical tools and direct current surgical appliances.
A61B 17/072 - Surgical staplers for applying a row of staples in a single action, e.g. the staples being applied simultaneously
A61B 18/12 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
A61B 18/16 - Indifferent or passive electrodes for grounding
A61B 90/90 - Identification means for patients or instruments, e.g. tags
A61B 17/00 - Surgical instruments, devices or methods
A61B 17/29 - Forceps for use in minimally invasive surgery
A61B 18/00 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
A powered handle for a surgical stapler has a drive system including an electric motor. The powered handle includes a shaft recognition mechanism such that when a reload shaft for use with the surgical stapler is installed, a control system can actuate the drive system with the recognized shaft. The powered handle further comprises a LED light ring driven by a light control scheme to display a handle status. The control system also includes a startup module to assess hardware and control system performance before use. The startup module assesses different criteria depending on whether the handle is new, previously used, or previously reset. The control system of the powered handle further includes a lockout module configured to identify when a lockout has been encountered. The lockout module applies different criteria depending on whether the motor is operating at a maximum speed state or less than a maximum speed state.
A retractor/protector suitable for use in a surgical incision or a natural orifice comprises a longitudinal axis defining an instrument access channel extending from a proximal end to a distal end; a flexible outer ring; an inner ring; a flexible sheath extending between the outer ring and the inner ring; and at least one rigid segment adapted to attach to the flexible outer ring to thereby increase the rigidity of the outer ring. Embodiments of the retractor/protector are described that have interlocking and non-interlocking rigid segments. Embodiments are also described that have bases that insert into or under the flexible outer ring in addition to or in lieu of rigid segments to increase rigidity and/or provide support for a detachable cap.
Surgical stapler systems can include lockout mechanisms to restrict further movement of a jaw assembly and provide different functionality when a jaw assembly is empty and when a partially or fully fired reload cartridge is present in the jaw assembly. When the jaw assembly is empty, the empty jaw assembly lockout mechanism can arrest an open-close stroke of the jaw assembly. When an at least partially fired reload is present in the jaw assembly, a fired reload lockout mechanism can allow operation of the jaw assembly through a substantial portion of an open-close stroke, but restrict actuation of the jaw assembly in a firing stroke. The separate lockout mechanisms can be embodied in a single lockout lever actuatable by lockout actuators to three distinct positions or by two independently-operable lockout levers.
Simulated tissue structures for practicing surgical techniques and methods of manufacturing those structures are provided. In particular, a realistic organ model or simulated tissue portion for practicing the removal of a tumor or other undesired tissue followed by suturing a remnant defect as part of the same surgical procedure is provided. The simulated tissue structures include a polyp simulation having a suturable mesh layer that is separable from a defect layer. A simulated colon model with interchangeable and suturable tissue pods is also provided as is a fully suturable rectum model and a rectum model with integrative suturable and removable polyp zones.
A61K 31/137 - Arylalkylamines, e.g. amphetamine, epinephrine, salbutamol, ephedrine
A61K 31/4045 - Indole-alkylaminesAmides thereof, e.g. serotonin, melatonin
A61K 31/55 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having seven-membered rings, e.g. azelastine, pentylenetetrazole
A61K 31/675 - Phosphorus compounds having nitrogen as a ring hetero atom, e.g. pyridoxal phosphate
A61K 47/14 - Esters of carboxylic acids, e.g. fatty acid monoglycerides, medium-chain triglycerides, parabens or PEG fatty acid esters
A61K 47/42 - ProteinsPolypeptidesDegradation products thereofDerivatives thereof, e.g. albumin, gelatin or zein
A61P 25/00 - Drugs for disorders of the nervous system
C07C 217/60 - Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton having etherified hydroxy groups bound to carbon atoms of at least one six-membered aromatic ring and amino groups bound to acyclic carbon atoms or to carbon atoms of rings other than six-membered aromatic rings of the same carbon skeleton with amino groups linked to the six-membered aromatic ring, or to the condensed ring system containing that ring, by carbon chains not further substituted by singly-bound oxygen atoms linked by carbon chains having two carbon atoms between the amino groups and the six-membered aromatic ring or the condensed ring system containing that ring
C07D 487/22 - Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups in which the condensed system contains four or more hetero rings
A tissue retrieval system including a tissue retrieval bag deployable by an actuator from an introducer and suspended in an open configuration by support arms can be serially redeployed between a partially or fully stowed configuration and a first deployed configuration to be used in procedures to collect multiple samples. The system can include defeasible proximal and distal stop mechanisms to limit movement of the actuator for serial redeployment. The tissue retrieval system can include a retention latch to couple a bead of the tissue retrieval bag to the actuator with the retrieval bag in the first deployed position and a user-selectable deployment release to allow deployment of the retrieval bag to a fully deployed position where it is released from the actuator. A bead stop is positioned to engage the introducer to prevent reintroduction of the bead and bag into the introducer once the bag has been fully deployed.
A camera navigation system is provided. The camera navigation system includes an insert or grid having a plurality of markers configured to assist in the tracking of a simulated laparoscope. The camera navigation system generates a digital environment with computer-generated elements for different camera navigation exercises that are displayed on a monitor for a user to view. The position of the simulated laparoscope with respect to the training environment is simulated within the digital environment as a cursor and movements of the simulated laparoscope with respect to the training environment correspond to movements of the cursor within the digital environment. The camera navigation system is compatible with both zero degree and angled laparoscopes and has camera navigation exercises that are provided to train users on different camera navigation skills. Feedback is also provided characterizing the user's performance of the camera navigation exercises.
G09B 23/28 - Models for scientific, medical, or mathematical purposes, e.g. full-sized device for demonstration purposes for medicine
G09B 5/12 - Electrically-operated educational appliances providing for individual presentation of information to a plurality of student stations different stations being capable of presenting different information simultaneously
22.
TROCAR CANNULA ASSEMBLY WITH LOW PROFILE INSERTION CONFIGURATION AND METHOD OF MANUFACTURE
A cannula assembly having a retention member and a method of manufacture of the cannula assembly is provided. The cannula assembly includes a cannula and a sleeve disposed around the cannula from a proximal end to a distal end. The sleeve can include a balloon formed by a stretch blow molding process following local heating once advanced over the cannula. Once formed, the balloon can be conditioned to constrict against the cannula. A conditioning aid can be advanced over the balloon when it is still formable to constrict the balloon against the cannula.
A portable surgical training device is provided. The trainer includes a top cover spaced apart from a base to form a simulated body cavity for locating model organs that are substantially obscured from the field of view of the user. The top cover includes a video display, fixed insertion ports and interchangeable inserts containing simulated tissue layers. The training device has open sides for demonstrating and training lateral surgical techniques including a simulated or live tissue colon attached to a support leg for simulating transanal minimally invasive surgery. A training endoscope with an adjustable focal length for use with the trainer and, in particular, with optical trocars is disclosed. The surgical trainer can be angled and is well suited for training laparoscopic surgery techniques and demonstrating surgical instruments.
The tissue removal containment system is provided that includes a tissue removal and/or containment bag arranged to be inserted through an opening into a confined space. The bag has a support or ring having a compressed, partially compressed and/or uncompressed state or position. The bag can also include an enclosure or film defining the enclosure connected to the support with the enclosure having a confined state and a deployed or unconfined state.
A61B 17/42 - Gynaecological or obstetrical instruments or methods
A61B 50/30 - Containers specially adapted for packaging, protecting, dispensing, collecting or disposing of surgical or diagnostic appliances or instruments
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
A61B 90/40 - Apparatus fixed or close to patients specially adapted for providing an aseptic surgical environment
A surgical stapler is provided. The stapler employs circumferential channels through which staples are deployed along an arc pathway against an anvil surface. The curved channels allow staples with relatively longer legs to be used in the stapler having a smaller diameter at the jaws. Also, by utilizing a curved path, a much larger staple can be placed in the same diameter device. Specialized curved staples for use with the stapler of the present invention are also provided. To further enable the benefits of the stapler with circumferential channels and method of staple deployment, novel jaw reinforcement structures are provided in the present invention. The jaw reinforcement structures are located towards the center or bladeline of the device instead of around the circumference as in conventional staplers, thereby clearing the outer area near the circumference of the device to provide room for longer staples and staple firing components.
A61B 17/10 - Surgical instruments, devices or methods for closing wounds or holding wounds closedAccessories for use therewith for applying or removing wound clampsWound clamp magazines
Herein is described a simulated tissue structure for surgical training comprising first and second layers of silicone polymer; the second layer spaced apart from the first layer; a third layer made of entangled fibers located between the first and second layers; the third layer being embedded in the upper surface of the first layer; a fourth layer made of entangled fibers located between the first and second layers; the fourth layer being embedded in the second layer at the lower surface of the second layer; and a first inclusion between the third layer and fourth layers and a second inclusion attached to the third layer at the lower surface of thereof, which defines an embedded portion partially embedded in the second inclusion and an extending portion extending from the lower surface of the third layer and embedded in the first layer at the upper surface thereof.
A powered handle for a surgical stapler can have a drive system including an electric motor. The powered handle can include a manual return mechanism. The powered handle can also include a retention mechanism to prevent unintentional movement of drivetrain components upon actuation of the manual return mechanism. For example, the retention mechanism can apply a direction-dependent frictional force on an actuation shaft of the handle assembly to prevent unintentional movement of the actuation shaft towards a distal end of the handle assembly. The retention mechanism can include a featherboard-like configuration with a plurality of ribs oriented transversely to the actuation shaft to restrict movement of the actuation shaft in one direction while allowing movement of the shaft in the opposite direction.
Simulated tissue structures and methods of manufacturing are provided. The simulated tissue structures are particularly useful for placement inside abdominal simulators for practicing laparoscopic surgical techniques. One simulated tissue structure includes a combination of two materials that are attached together wherein one of the materials forms a hollow anatomical structure configured to contain the other material. The two materials are attached in an anatomically advantageous manner such that the inner surface of the outer material closely conforms to the outer surface of the inner material. Another simulated tissue structure includes a plurality of layers wherein at least one layer is applied by printing the layer with at least one stencil to impart one or more functional characteristic to the simulated tissue structure.
G09B 23/28 - Models for scientific, medical, or mathematical purposes, e.g. full-sized device for demonstration purposes for medicine
B29C 41/20 - Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped articleApparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. moulding around inserts or for coating articles
Jaw assemblies for a surgical stapler are provided. The jaw assemblies comprise a first jaw having a first clamping surface and a plurality of staples disposed therein and second jaw assembly having a second clamping surface. The jaw assemblies can be actuated from a closed configuration in which the first clamping surface contacts or is adjacent to the second clamping surface to an open configuration in which the second jaw is pivoted away from the first jaw to a stapling position in which the second clamping surface is parallel to the first clamping surface and spaced apart from the first clamping surface. A pivoting link or sliding pivot joint can couple the second jaw to the first jaw to facilitate motion between the closed position, the open position, and the stapling position.
A laparoscopic suturing device is provided. The suturing device can pass a suturing needle back and forth between jaws of a jaw assembly to suture tissue at a surgical site in a minimally invasive procedure. The jaw assembly can have a pivotable jaw member in each jaw to position the jaw assembly and needle in a low-profile stowed configuration for insertion through a low diameter surgical port. The jaw assembly can be actuated by a handle assembly that provides simultaneous needle passing from a driving jaw to a receiving jaw and latching the needle within the receiving jaw in a single trigger cycle.
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
A61B 17/06 - NeedlesHolders or packages for needles or suture materials
A handle assembly for a surgical stapler can comprise a rotatable actuation shaft. The actuation shaft can have a first rotational orientation in which it can actuate a jaw assembly in a repeatable open and close mode, a second rotational orientation in which it can actuate a jaw assembly in a staple firing mode, and a third rotational orientation in which it can actuate a jaw assembly in a reversing mode. The handle assembly can include a rotational mechanism arranged to discretely position the rotatable actuation shaft in one of the rotational orientations. The rotational mechanism can be arranged for single handed operation such as by including a slidable switch or selector to rotate the actuation shaft.
An electrosurgical system is provided and includes a bipolar electrosurgical instrument and an electrosurgical generator. The bipolar electrosurgical instrument is arranged to seal and cut tissue captured between jaws of the instrument. The jaws include particularly positioned, shaped and/or oriented electrodes to perform the sealing of tissue. The electrosurgical generator is arranged to supply RF energy through the instrument, monitor the supplied RF energy and adjust or terminate the supplied RF energy to optimally seal the tissue.
A61B 18/12 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
A61B 18/00 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
A simulated tissue structure for surgical training is provided. The simulated tissue structure includes a first layer made of silicone and a second layer made of silicone interconnected by a third layer made of polyester fiber that is embedded in part in the first layer and in part in the second layer to create a mechanical linkage between the first layer and the second layer. Part of the third layer that is adjacent to the first layer and part of the third layer that is adjacent to the second layer includes fiber strands coated in silicone. An inclusion that mimics an anatomical structure is located between the first layer and the second layer. The third layer of polyester fibers provides a realistic dissection plane for the practice of the surgical excision of the inclusion.
A surgical instrument is provided having an actuator mechanism with an integrated extension element. The surgical instrument comprises a handle assembly, an elongate shaft, and an end effector. The end effector can comprise a jaw assembly having atraumatic pads positioned thereon to reduce force on grasped tissue. An actuator is movable within the elongate shaft to actuate jaws of the jaw assembly responsive to movement of a movable handle of the handle assembly. The actuator can have an integrated extension element that allows the actuator to translate within the elongate shaft upon application of a relatively low force and translate and extend upon application of a relatively higher force to the actuator to limit the force applied by the jaw assembly. The actuator is also able to utilize force stored with the integrated extension element to provide a dynamic amount of force used to grasp the tissue in scenarios where the tissue volume decreases while in the jaws.
A61B 17/29 - Forceps for use in minimally invasive surgery
A61B 17/00 - Surgical instruments, devices or methods
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
A system for training surgical camera navigation skills is provided. A plurality of two-dimensional targets is on an upper surface of a flat sheet. The sheet is easily transportable and placed onto a base of a trainer that defines a simulated abdominal cavity between the base and a top. A scope is inserted through a port in the top and the targets are viewed on a live video feed displayed on a screen. A trainee can move the scope back and forth, roll and angulate the scope about the port to view the targets on the sheet at different angles and distances. The trainee is instructed to follow a sequence of targets marked on the sheet and manipulate the scope to align consecutively each target with the edges of the screen in the sequence provided.
G09B 23/28 - Models for scientific, medical, or mathematical purposes, e.g. full-sized device for demonstration purposes for medicine
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 1/05 - 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 combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion
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
H04N 23/00 - Cameras or camera modules comprising electronic image sensorsControl thereof
A surgical simulation scope system is provided as effective as a surgical scope without the added expense and complexities. The surgical simulation scope comprises an optics housing, a lens and an image sensor placed in such a way to ensure the location of the sensor is within the depth of focus of the lens is maintained while not damaging the sensor and, in some cases, to provide angled and/or rotational viewing.
Surface preparation for sliding surfaces can enhance wear performance for surgical instruments such as surgical staplers which include reusable mechanisms that are used multiple times with single use reload cartridges. To reduce the potential for galling wear in a metal-to-metal sliding engagement, a combination of surface hardening, surface finish, and surface coatings can be applied to metallic components of a surgical instrument. Surface hardening techniques can allow further manufacturing operations such as welding without compromising the strength of the underlying metal substrate. With stainless steel metal substrates, as surface or case hardening techniques can reduce corrosion resistance, a surface coating can be applied to inhibit surface oxidation as well as provide a barrier to metal-to-metal contact. A further lubricious coating layer such as a bone wax coating layer can enhance galling resistance.
A simulated tissue structure for practicing surgical techniques is provided. In particular, a realistic organ model or tissue portion for practicing the removal of a tumor or other undesired tissue followed by suturing a remnant defect as part of the same surgical procedure is provided. The simulated tissue structure includes an artificial tumor disposed between layers of elastomeric material and mounted on a simulated organ wall or tissue portion. The simulated tissue structure is modular and interchangeable. At least one of the layers includes a mesh reinforcement. A defect comprising two juxtapositioned surfaces defining a gap between the surfaces is created in the simulated tissue structure and the trainee practices tumor removal and closure of the gap by suturing in a laparoscopic environment.
A tissue retrieval system including a tissue retrieval bag deployable by an actuator from an introducer and suspended in an open configuration by support arms can be serially redeployed between a partially or fully stowed configuration and a first deployed configuration to be used in procedures to collect multiple samples. The redeployable tissue retrieval bag can include an attachment tab at an upper proximal portion to which a bead is coupled. The upper proximal portion is configured to significantly reduce stress concentrations during redeployment cycles of the tissue retrieval bag. For example, the upper proximal portion can be aligned with a proximal edge of the tissue retrieval bag. The upper proximal portion can further include a radiused profile including a relatively large radius to reduce stress concentrations.
A tissue retrieval system including a tissue retrieval bag deployable by an actuator from an introducer and suspended in an open configuration by support arms can be serially redeployed between a partially or fully stowed configuration and a first deployed configuration to be used in procedures to collect multiple samples. The redeployable tissue retrieval bag can include an attachment tab at an upper proximal portion to which a bead is coupled. The upper proximal portion is configured to significantly reduce stress concentrations during redeployment cycles of the tissue retrieval bag. For example, the upper proximal portion can be aligned with a proximal edge of the tissue retrieval bag. The upper proximal portion can further include a radiused profile including a relatively large radius to reduce stress concentrations.
The surgical robotic access system provides access for robotic instruments and/or actuators including the introduction, operation and withdrawal of such robotic manipulators into a body cavity without permitting the escape of pressurized fluid or gas. The surgical robotic access system also provides a multi-faceted range of movement without touching or effecting pressure on the opening in the patient's body cavity.
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 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
A61B 90/50 - Supports for surgical instruments, e.g. articulated arms
42.
ELECTROSURGICAL SYSTEM WITH TISSUE AND MAXIMUM CURRENT IDENTIFICATION
An electrosurgical system is provided and includes an electrosurgical instrument and an electrosurgical generator. The electrosurgical system obtains information about the tissue undergoing a sealing process in order to calculate information about the tissue undergoing the sealing process and, in real-time, modify the RF energy being provided to the electrosurgical instrument from the electrosurgical generator. In this way, the electrosurgical system manages the supply of RF energy to optimally seal different types of tissue. The electrosurgical instrument is configured to seal the tissue using the RF energy.
A61B 18/00 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
A61B 18/12 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
43.
SURGICAL STAPLER WITH SELF-ADJUSTING STAPLE HEIGHT
A surgical stapler is provided that includes a spring loaded lift that automatically adjusts a staple cartridge and/or staple formation between a range of sizes. The lift is automatically released as the staple firing mechanism begins its forward translation of the firing sequence. The automatic one-way adjustment also adjusts the staple cartridge while maintaining the cartridge parallel to the anvil to provide consistent staple formations.
A61B 17/072 - Surgical staplers for applying a row of staples in a single action, e.g. the staples being applied simultaneously
A61B 17/00 - Surgical instruments, devices or methods
A61B 17/29 - Forceps for use in minimally invasive surgery
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
44.
SINGLE INCISION LAPAROSCOPIC TISSUE RETRIEVAL SYSTEM
A tissue retrieval system can include a tissue retrieval bag with an elongate profile. The tissue retrieval bag can have a relatively large volume, but be rollable to a stowed configuration to fit in a relatively small diameter introducer. The tissue retrieval system can include one or more support arms coupled to the tissue retrieval bag, the support arms biased to position the tissue retrieval bag in an access position once deployed from the introducer. A tissue retrieval system can have a hybrid tissue retrieval bag including material properties that vary along the depth of the bag from an open end to a closed end. A tissue retrieval bag can be used in conjunction with an introducer, or as a stand alone tissue retrieval bag.
Jaw assemblies for a surgical stapler are provided. The jaw assemblies comprise a first jaw having a first clamping surface and a plurality of staples disposed therein and second jaw assembly having a second clamping surface. The jaw assemblies can be actuated from a closed configuration in which the first clamping surface contacts or is adjacent to the second clamping surface to an open configuration in which the second jaw is pivoted away from the first jaw to a stapling position in which the second clamping surface is parallel to the first clamping surface and spaced apart from the first clamping surface. A pivoting link or sliding pivot joint can couple the second jaw to the first jaw to facilitate motion between the closed position, the open position, and the stapling position.
Systems and methods for tissue containment and retrieval are disclosed. The containment system includes a primary chamber interconnected with a secondary channel extending from the primary chamber. A tissue specimen is mobilized inside a body cavity and placed into the primary chamber through a first opening. The first opening is pulled through a first incision or orifice and the narrower secondary channel is placed at a second incision or orifice. A second opening at the end of the secondary channel permits observation via a scope inserted through the second opening of the tissue specimen in the primary chamber undergoing morcellation via the first opening. Other systems and methods for deployment, containment, debulking and sealing of the second opening to create a closed system for the safe retrieval of the tissue specimen are provided.
Systems and methods for preventing the seeding of cancerous cells during morcellation of a tissue specimen inside a patient's body and removal of the tissue specimen from inside the patient through a minimally-invasive body opening to outside the patient are provided. One system includes a cut-resistant tissue guard removably insertable into a containment bag. The tissue specimen is isolated and contained within the containment bag while the cut-resistant tissue guard protects the containment bag and surrounding tissue from incidental contact with sharp instrumentation used during morcellation and extraction of the tissue specimen. The cut-resistant tissue guard is adjustable for easy insertion and removal such that it securely anchors to the body opening. Protection-focused and containment-based systems for tissue removal are provided that enable minimally invasive procedures to be performed safely and efficiently.
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
A61B 90/40 - Apparatus fixed or close to patients specially adapted for providing an aseptic surgical environment
Systems and methods for performing impedance matching to enhance surgical outcomes in an electrosurgical system are described. An impedance matching network is interposed along a path of RF energy and matches dynamically an output impedance of an electrosurgical generator to an input impedance of the tissue load by varying the inductance of a resonant cell. As a result, an adjustment is made to the output phase of the electrosurgical generator to ensure an optimal matching of the source and load impedances based on sealing, fusing or cutting cycle of the tissue. This leads to a resonance condition which provides a zero-degrees phase shift between the RF output voltage and current of the electrosurgical generator. The inductance of the resonant cell is proportional to either the magnitude of the current flowing through DC windings of a saturable core reactor or on the size of an airgap in the inductor core material.
A61B 18/12 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
Simulated tissue structures for practicing surgical techniques and methods of manufacturing those structures are provided. In particular, a realistic organ model or simulated tissue portion for practicing the removal of a tumor or other undesired tissue followed by suturing a remnant defect as part of the same surgical procedure is provided. The simulated tissue structures include a polyp simulation having a suturable mesh layer that is separable from a defect layer. A simulated colon model with interchangeable and suturable tissue pods is also provided as is a fully suturable rectum model and a rectum model with integrative suturable and removable polyp zones.
G09B 23/34 - Anatomical models with removable parts
B29C 41/08 - Coating a former, core or other substrate by spraying or fluidisation, e.g. spraying powder
B29C 41/20 - Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped articleApparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. moulding around inserts or for coating articles
B29C 41/22 - Making multilayered or multicoloured articles
G09B 23/28 - Models for scientific, medical, or mathematical purposes, e.g. full-sized device for demonstration purposes for medicine
Systems and methods for performing impedance matching to enhance surgical outcomes in an electrosurgical system are described. An impedance matching network is interposed along a path of RF energy and matches dynamically an output impedance of an electrosurgical generator to an input impedance of the tissue load by varying the inductance of a resonant cell. As a result, an adjustment is made to the output phase of the electrosurgical generator to ensure an optimal matching of the source and load impedances based on sealing, fusing or cutting cycle of the tissue. This leads to a resonance condition which provides a zero-degrees phase shift between the RF output voltage and current of the electrosurgical generator. The inductance of the resonant cell is proportional to either the magnitude of the current flowing through DC windings of a saturable core reactor or on the size of an airgap in the inductor core material.
A61B 18/12 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
G05F 1/32 - Regulating voltage or current wherein the variable is actually regulated by the final control device is AC using magnetic devices having a controllable degree of saturation as final control devices
A surgical simulation camera scope is provided. The surgical simulation camera scope comprises a lens mount with a lens and a sensor mount with an image sensor disposed between the sensor mount and the lens mount. The arrangement of the lens mount and the sensor mount ensures that the location of the sensor is maintained within the depth of focus of the lens while not damaging the sensor.
G09B 23/28 - Models for scientific, medical, or mathematical purposes, e.g. full-sized device for demonstration purposes for medicine
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 1/05 - 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 combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion
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
G02B 23/24 - Instruments for viewing the inside of hollow bodies, e.g. fibrescopes
Systems and methods for performing impedance matching to enhance surgical outcomes in an electrosurgical system are described. An impedance matching network is interposed along a path of RF energy and matches dynamically an output impedance of an electrosurgical generator to an input impedance of the tissue load by varying the inductance of a resonant cell. As a result, an adjustment is made to the output phase of the electrosurgical generator to ensure an optimal matching of the source and load impedances based on sealing, fusing or cutting cycle of the tissue. This leads to a resonance condition which provides a zero-degrees phase shift between the RF output voltage and current of the electrosurgical generator. The inductance of the resonant cell is proportional to either the magnitude of the current flowing through DC windings of a saturable core reactor or on the size of an airgap in the inductor core material.
A61B 18/12 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
G05F 1/32 - Regulating voltage or current wherein the variable is actually regulated by the final control device is AC using magnetic devices having a controllable degree of saturation as final control devices
A surgical training device is provided. The training device includes a model for practicing the passage of needle and suture. The model includes a base with a plurality of openings configured to receive a plurality of suture tabs. The suture tabs are made of elastomeric material. Some suture tabs includes pre-formed tab apertures for the passage of a suture. Other suture tabs include a penetrable area through which a suture needle may penetrate for passing a suture. The suture tabs are movable with respect to the base to orientate them at different angles with respect to the base. The base itself may include portions that are angled with respect to each other. The suture tabs are movable with respect to the base to pull, expose or open the tab apertures and surfaces. Some of the tab apertures are slits that open upon being pulled relative to the base requiring the user to practice holding the tab while passing the needle through the tab.
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
G09B 23/28 - Models for scientific, medical, or mathematical purposes, e.g. full-sized device for demonstration purposes for medicine
A surgical simulator for surgical training is provided. The simulator includes a frame defining an enclosure and a simulated tissue model located inside the frame. The simulated tissue model is adapted for practicing a number of surgical procedures including but not limited to transanal excisions and transvaginal hysterectomies. Portions of the frame comprises a material adhesively compatible with the material of portions of the simulated tissue model to secure and suspend the simulated tissue model within the frame. The simulated tissue model may also include simulated vasculature configured to loop through apertures in the frame to secure and suspend the simulated tissue model within the frame.
Systems and methods for enhancing surgical outcomes by providing generators having optimal RF output for sealing, fusing and/or cutting tissue or vessels under all dynamic conditions are described. Examples of dynamic conditions may include varying tissue impedance load due to electrosurgical operations or tissue affects, any operational conditions and commands determined by the surgeon, surgical procedure and/or device script. This is achieved by implementing a digital closed-loop control system within the electrosurgical generator to regulate voltage, current, and power of the RF output. The digital closed-loop control system may include an RF amplifier for generating RF energy, a feedback system for constantly monitoring the electrical characteristics, e.g., voltage, current, and power, of the supplied RF energy to a connectable electrosurgical instrument and a microcontroller for processing measurement data from the feedback system and adjusting the output of the RF amplifier to meet a desired regulation target under any varying conditions.
A61B 18/12 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
A simulated abdominal wall model that is ideal for practicing laparoscopic first entry surgical techniques is provided. The model includes a simulated abdominal wall portion captured between two frame elements of a support. The support is connectable to a surgical trainer. When connected to the trainer, the model provides a penetrable abdominal tissue portion for accessing an internal cavity of the trainer. The simulated abdominal wall includes a plurality of layers including a skin layer, a fabric posterior rectus sheath layer, a simulated fat layer of low-resilience polyurethane foam and at least two layers that provide distinctive haptic feedback upon penetration of the simulated transversalis fascia and muscle layers. The simulated abdominal wall includes a simulated umbilicus across several layers of simulated tissue.
G09B 23/28 - Models for scientific, medical, or mathematical purposes, e.g. full-sized device for demonstration purposes for medicine
B29C 39/02 - Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressureApparatus therefor for making articles of definite length, i.e. discrete articles
G09B 5/02 - Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
57.
Electrosurgical instruments and connections thereto
An electrosurgical instrument includes jaws having an electrode configuration utilized to electrically modify tissue in contact with one or more electrodes. The instrument is removably connectable to an electrosurgical unit via an electrosurgical connector extending from the instrument and a receptacle on the electrosurgical unit. The electrosurgical instrument is rotatable without disrupting electrical connection to the electrodes of the jaws. One or more of the electrodes is retractable. The electrosurgical unit and instrument optimally seals and/or cuts tissue based on identifying the tissue and monitoring the modification of the tissue by the application of radio frequency energy.
A61B 18/00 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
A61B 18/12 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
A simulated abdominal wall for laparoscopic surgical training and methods of making the wall are provided. The simulated abdominal wall is dome-shaped having a visual appearance of an insufflated abdomen. Also, the wall is strong enough to withstand penetration with surgical trocars without unrealistic buckling or deformation. The wall is supported by a frame along the perimeter without any support structures traversing the wall that would interfere with port placement. The wall includes multiple layers connected together to form a unitary wall to fit a laparoscopic trainer. In one method, a projection of a dome is cut from a flat layer of foam material and assembled within a mold cavity. Consecutive layers with the same or different projection pattern are laid up inside the mold cavity. In another method, a vacuum mold together with heat is used to deform each foam layer. Adhesive is applied between layers to simultaneously join the adjacent layers upon deformation.
A surgical simulation system is provided. The system includes at least one simulated body organ placed upon the base of an organ tray and at least one covering layer placed over the simulated body organ. At least one of the simulated body organ and covering layer includes electro-conductive gel that is operably severable under application of electrical current to simulate electrosurgery in a training environment. The training environment comprises a top cover connected to and spaced apart from a base to define an internal cavity that is partially obstructed from direct observation by a practitioner. The tray, simulated body organs and covering layer are placed inside the internal cavity for the practice of laparoscopic surgical procedures.
Simulated tissue structures and methods of making them are disclosed. An elastic first material is placed in tension. An elastic second material is adhered to the first material while the first material is in tension. The adhered second material and the first material in tension forms a first shape of the simulated tissue structure. Tension on the first material is released. In releasing the tension of the first material, a force is exerted on the adhered second material bring the combination of the first material and the second material into a second shape. The first shape is maintained by a mold or mandrel and the second shape is the desired shape of the simulated tissue structure.
A handle assembly for a surgical stapler can comprise a rotatable actuation shaft. The actuation shaft can have a first rotational orientation in which it can actuate a jaw assembly in a repeatable open and close mode, a second rotational orientation in which it can actuate a jaw assembly in a staple firing mode, and a third rotational orientation in which it can actuate a jaw assembly in a reversing mode. The handle assembly can include a rotational mechanism arranged to discretely position the rotatable actuation shaft in one of the rotational orientations. The rotational mechanism can be arranged for single handed operation such as by including a slidable switch or selector to rotate the actuation shaft.
A TME surgical simulator is provided. The TME surgical simulator includes a simulated tissue layers and simulated vasculature and/or organ structures. The simulated tissue surgical simulator is adapted for but not limited to laparoscopic and/or transanal TME surgical procedures.
A powered handle for a surgical stapler can have a drive system including an electric motor. The powered handle can include a manual articulation mechanism to articulate a jaw assembly coupled to a reload shaft connected to the handle. The manual articulation mechanism can include a ball screw mechanism that translates an articulation member responsive to rotation of an articulation knob. The articulation mechanism includes a release function that allows the jaw assembly to return to a longitudinally centered orientation. The powered handle includes a battery pack serving as a power supply for the drive system. A control system can control actuation of the motor based on user inputs and operating parameters of the stapler. The powered handle can include a manual return mechanism.
A61B 17/072 - Surgical staplers for applying a row of staples in a single action, e.g. the staples being applied simultaneously
A61B 17/29 - Forceps for use in minimally invasive surgery
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
A61B 17/00 - Surgical instruments, devices or methods
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
A61B 90/98 - Identification means for patients or instruments, e.g. tags using electromagnetic means, e.g. transponders
A surgical stapler includes a jaw assembly at a distal end connected to a handle assembly that is configured to control the stapler and actuate the deployment of staples. The surgical stapler successfully eliminates intermediate caming portions commonly known as pushers that are located between the staples and a translating slider. The staples are located in pockets at an angle such that the base of the staple is parallel to an angled caming surface of the slider. The translating slider comes into direct contact with staples during deployment as the slider moves through each staple pocket where staples are partially supported by recesses along the slider pathway. The staples are deployed at an angle against the anvil surface. Because there are no pushers, a great deal of space is saved resulting in a much smaller diameter surgical stapler that is particularly suitable for laparoscopic stapling applications.
A surgical simulator for surgical training is provided. The simulator includes a frame defining an enclosure and a simulated tissue model located inside the enclosure. The simulated tissue model is adapted for practicing a number of surgical procedures including but not limited to transanal excisions and transvaginal hysterectomies. The simulated tissue model includes one more components and is interchangeably connected to the frame with fasteners configured to pass through apertures in the frame to suspend the simulated tissue model within the frame. The enclosure of the frame is increasingly laterally constricted along the longitudinal axis to progressively increase the confinement of the components of the simulated tissue model.
A powered handle for a surgical stapler can have a drive system including an electric motor. The powered handle can include a manual return mechanism. The powered handle can also include a retention mechanism to prevent unintentional movement of drivetrain components upon actuation of the manual return mechanism. For example, the retention mechanism can apply a direction-dependent frictional force on an actuation shaft of the handle assembly to prevent unintentional movement of the actuation shaft towards a distal end of the handle assembly. The retention mechanism can include a featherboard-like configuration with a plurality of ribs oriented transversely to the actuation shaft to restrict movement of the actuation shaft in one direction while allowing movement of the shaft in the opposite direction.
Systems and methods for preventing the seeding of cancerous cells during morcellation of a tissue specimen inside a patient's body and removal of the tissue specimen from inside the patient through a minimally-invasive body opening to outside the patient are provided. One system includes a cut-resistant tissue guard removably insertable into a containment bag. The tissue specimen is isolated and contained within the containment bag and the guard is configured to protect the containment bag and surrounding tissue from incidental contact with sharp instrumentation used during morcellation and extraction of the tissue specimen. The guard is adjustable for easy insertion and removal and configured to securely anchor to the body opening. Protection-focused and containment-based systems for tissue removal are provided that enable minimally invasive procedures to be performed safely and efficiently.
A guard for providing a cut-resistant pathway through a body orifice or incision to circumferentially protect tissue at the margin is provided. The guard is made of flexible, cut-resistant mesh material having a plurality of interwoven thermosoftening filaments. The guard has a central lumen and at least one flared end. The flared end, which serves to anchor the guard in the body opening, is deformable into a reduced configuration to facilitate its insertion and removal. The layer of mesh stretches laterally to increase the diameter of the central lumen. The flexibility and expandability of the guard allows the guard to conform to body openings of different sizes. The guard may include a drawstring to cinch the flared distal end from the proximal end. The guard is thermoset with the flared distal end that is biased to spring back to its normal, undeformed configuration when released from a deformed configuration.
A surgical simulator for surgical training is provided. The simulator includes a frame defining an enclosure and a simulated tissue model located inside an enclosure. The simulated tissue model is adapted for practicing hysterectomies and includes at least a simulated uterus and a simulated vagina. The simulated tissue model is suspending inside the enclosure with two planar sheets of silicone such that the tissue model is located between the two sheets each of which form a fold and are in turn connected to the frame. The frame may be shaped like a cylinder and located inside a cavity of a larger laparoscopic trainer having a penetrable simulated abdominal wall. The tissue model is interchangeable and accessible laterally through an aperture provided in a support leg of the trainer.
Surgical stapler systems can include lockout mechanisms to restrict further movement of a jaw assembly and provide different functionality when a jaw assembly is empty and when a partially or fully fired reload cartridge is present in the jaw assembly. When the jaw assembly is empty, the empty jaw assembly lockout mechanism can arrest an open-close stroke of the jaw assembly. When an at least partially fired reload is present in the jaw assembly, a fired reload lockout mechanism can allow operation of the jaw assembly through a substantial portion of an open-close stroke, but restrict actuation of the jaw assembly in a firing stroke. The separate lockout mechanisms can be embodied in a single lockout lever actuatable by lockout actuators to three distinct positions or by two independently-operable lockout levers.
A circumferential retractor system is provided that includes a circumferential retractor and a flexible retainer. The circumferential retractor and retainer retracts and protects a patient's body opening, providing access into a patient.
An electrosurgical generator arranged to supply radio frequency (RF) energy to fuse tissue is provided. The generator is arranged to supply RF energy through a removably coupled electrosurgical instrument to fuse tissue grasped by the instrument. The generator monitors a phase angle of the supplied RF energy and adjusts or terminates the supplied RF energy based on the monitored phase angle in comparison to predetermined thresholds and conditions to optimally fuse the tissue. The electrosurgical instrument conducts radio frequency energy to fuse tissue captured between the jaws and a blade to mechanically cut tissue between the jaws. A conductive post positioned on the jaw adjacent to the blade.
A61B 18/12 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
A surgical stapling system can include a reload shaft. The shaft can include an elongate tubular member with have a jaw assembly at the distal end thereof and a coupling collar at the proximal end thereof. The shaft assembly also includes an articulation joint coupling the jaw assembly to the distal end. A drive member and an articulation member extend within the tubular body of the shaft from the proximal end to the distal end. A firing member is connected to the distal end of the drive member such that advancement of the drive beam advances the firing member to close the jaw assemblies and fire staples from a reload positioned in the jaw assembly. The shaft assembly can also include a lockout mechanism to prevent a firing operation on a previously-fired reload or no reload.
A powered handle for a surgical stapler has a drive system including an electric motor. The powered handle includes a shaft recognition mechanism such that when a reload shaft for use with the surgical stapler is installed, a control system can actuate the drive system with the recognized shaft. The powered handle further comprises a LED light ring driven by a light control scheme to display a handle status. The control system also includes a startup module to assess hardware and control system performance before use. The startup module assesses different criteria depending on whether the handle is new, previously used, or previously reset. The control system of the powered handle further includes a lockout module configured to identify when a lockout has been encountered. The lockout module applies different criteria depending on whether the motor is operating at a maximum speed state or less than a maximum speed state.
A surgical simulation scope system is provided as effective as a surgical scope without the added expense and complexities. The surgical simulation scope comprises an optics housing, a lens and an image sensor placed in such a way to ensure the location of the sensor is within the depth of focus of the lens is maintained while not damaging the sensor and, in some cases, to provide angled and/or rotational viewing.
Surgical stapler systems can include a jaw assembly with one jaw defining a reload support capable of receiving and firing multiple disposable reload cartridges in a single surgical procedure. The reload cartridge can be protected by a reload cover engageable therewith. The reload cover can include snap features configured to prevent manual removal of the reload cover from the reload cartridge before proper positioning and installation in the reload support. The reload cover can desirably maintain a plurality of staples within staple pockets in the reload cartridge and can maintain a staple deployment mechanism in an unfired position.
The lighted surgical access system is provided that includes a circumferential retractor/protector and a light emitter system attached thereto. The circumferential retractor/protector retracts and protects a patient's body opening while the light emitter system illuminates the internal surgical site, body cavity or body opening.
A surgical simulation scope system is provided as effective as a surgical scope without the added expense and complexities. The surgical simulation scope comprises an optics housing, a lens and an image sensor placed in such a way to ensure the location of the sensor is within the depth of focus of the lens is maintained while not damaging the sensor and, in some cases, to provide angled and/or rotational viewing.
Pressure conditioning systems for supplying insufflation gas to an open-ended body conduit such as a rectal cavity during a transanal minimally invasive surgery (TAMIS) procedure can reduce billowing of walls of the body conduit. A pressure conditioning system can include a pressure storage component, an accumulator, and a flow restrictor. The pressure storage component can include a variable volume reservoir that is biased to a relatively low volume state. The flow restrictor can include insufflation tubing with a restrictor plate having a relatively low diameter orifice. The pressure storage component, accumulator, and flow restrictor can be fluidly connected in various orders in series or as side branches from a gas flow conduit. Despite a pulsed or otherwise discontinuous insufflation gas flow and leakage and absorption from the body conduit, the pressure conditioning system can maintain a constant pressure within the body conduit.
A tissue retrieval system including a tissue retrieval bag deployable from an introducer and suspended in an open configuration by support arms can include retention features to prevent inadvertent movement of the tissue retrieval bag relative to the support arms. The support arms can include protruding domes, folds, or curls to restrict sliding of the tissue retrieval bag relative to the support arms. Alternately, tension can be maintained in a cord loop coupled to an opening of the tissue retrieval bag to prevent the tissue retrieval bag from inadvertently sliding relative to the support arms.
An electrosurgical system is provided and includes a bipolar electrosurgical instrument and an electrosurgical generator. The bipolar electrosurgical instrument is arranged to seal and cut tissue captured between jaws of the bipolar electrosurgical instrument. The electrosurgical generator is arranged to supply RF energy through the bipolar electrosurgical instrument, monitor the supplied RF energy, and adjust or terminate the supplied RF energy to optimally seal the tissue.
A61B 18/12 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
A61B 34/00 - Computer-aided surgeryManipulators or robots specially adapted for use in surgery
A surgical stapler is provided. The stapler employs circumferential channels through which staples are deployed along an arc pathway against an anvil surface. The curved channels allow staples with relatively longer legs to be used in the stapler having a smaller diameter at the jaws. Also, by utilizing a curved path, a much larger staple can be placed in the same diameter device. Specialized curved staples for use with the stapler of the present invention are also provided. To further enable the benefits of the stapler with circumferential channels and method of staple deployment, novel jaw reinforcement structures are provided in the present invention. The jaw reinforcement structures are located towards the center or bladeline of the device instead of around the circumference as in conventional staplers, thereby clearing the outer area near the circumference of the device to provide room for longer staples and staple firing components.
A61B 17/10 - Surgical instruments, devices or methods for closing wounds or holding wounds closedAccessories for use therewith for applying or removing wound clampsWound clamp magazines
83.
Surgical robotic access system for irregularly shaped robotic actuators and associated robotic surgical instruments
The surgical robotic access system provides access for robotic instruments and/or actuators including the introduction, operation and withdrawal of such robotic manipulators into a body cavity without permitting the escape of pressurized fluid or gas. The surgical robotic access system also provides a multi-faceted range of movement without touching or effecting pressure on the opening in the patient's body cavity.
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 90/50 - Supports for surgical instruments, e.g. articulated arms
A61B 17/00 - Surgical instruments, devices or methods
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
The lighted surgical access system is provided that includes a circumferential retractor and a plastic optical fiber (POF) attached thereto. The circumferential retractor retracts and protects a patient’s body opening while the POF illuminates the internal surgical site, body cavity and/or body opening.
A61B 1/07 - 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 with illuminating arrangements using light-conductive means, e.g. optical fibres
A61B 17/02 - Surgical instruments, devices or methods for holding wounds open, e.g. retractorsTractors
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
85.
FORCE PERCEPTION MECHANISM FOR PHYSICAL LAPAROSCOPIC SIMULATION MODELS
A simulated training model having a force perception mechanism to identify and notify to a user when an amount of force being applied to the model exceeds a pre-determined amount. The force perception mechanism has two states that are used to identify when an amount of force being applied to the model exceeds the pre-determined amount. In a first state, one or more portions of the simulated training model are removably connected to each other; for example the body to the base and/or the post to the body. The second state corresponds to when one or more of the portions of the simulated training model become detached from each other. When the transition occurs between the first state to the second state, the surgical training model informs the user that the force being applied to one or more of the portions of the simulated training model had exceeded the pre-determined amount.
A surgical training model for teaching, practicing, and assessing motor and cognitive skills associated with laparoscopic surgery is provided. The surgical training model has at least a portion (e.g., limbs) that is manipulatable by a user in order to maneuver those portions in a desired manner in order to interact with other portions of the surgical training model. Force perception mechanisms can also be included to inform a user when an applied force on one or more portions of the surgical training model is over a pre-determined amount.
A simulated training model having a force perception mechanism to identify and notify to a user when an amount of force being applied to the model exceeds a pre-determined amount. The force perception mechanism has two states that are used to identify when an amount of force being applied to the model exceeds the pre-determined amount. In a first state, one or more portions of the simulated training model are removably connected to each other; for example the body to the base and/or the post to the body. The second state corresponds to when one or more of the portions of the simulated training model become detached from each other. When the transition occurs between the first state to the second state, the surgical training model informs the user that the force being applied to one or more of the portions of the simulated training model had exceeded the pre-determined amount.
A surgical training model for teaching, practic¬ ing, and assessing motor and cognitive skills associated with la¬ paroscopic surgery is provided. The surgical training model has at least a portion (e.g., limbs) that is manipulatable by a user in order to maneuver those portions in a desired manner in order to inter¬ act with other portions of the surgical training model. Force per¬ ception mechanisms can also be included to inform a user when an applied force on one or more portions of the surgical training model is over a pre-determined amount.
Surgical tools that can be used in single port laparoscopic procedures can include a low-profile handle assembly to minimize tool interference adjacent the incision site. For example, a handle assembly for a surgical instrument can have a generally in-line configuration extending linearly along a central longitudinal axis of an elongate shaft of the instrument. A linkage mechanism including a trigger, an actuation link, and an actuation shaft can be positioned within the in-line handle. The linkage mechanism can be pivoted between an open position in which end effectors of the instrument are open and a toggle position in which the end effectors are locked closed. A locking mechanism such as a ratchet mechanism can also be used to lock the end effectors. A surgical dissector can include gripping jaws having a curved profile or an angled elongate shaft to minimize tool interference and maximize visibility within a procedure site.
A61B 17/29 - Forceps for use in minimally invasive surgery
A61B 17/00 - Surgical instruments, devices or methods
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
A surgical training model for teaching, practicing, and assessing motor and cognitive skills associated with laparoscopic surgery is provided. The surgical training model has at least a portion (e.g., limbs) that is manipulatable by a user in order to maneuver those portions in a desired manner in order to interact with other portions of the surgical training model. Force perception mechanisms can also be included to inform a user when an applied force on one or more portions of the surgical training model is over a pre-determined amount.
A simulated training model having a force perception mechanism to identify and notify to a user when an amount of force being applied to the model exceeds a pre-determined amount. The force perception mechanism has two states that are used to identify when an amount of force being applied to the model exceeds the pre-determined amount. In a first state, one or more portions of the simulated training model are removably connected to each other; for example the body to the base and/or the post to the body. The second state corresponds to when one or more of the portions of the simulated training model become detached from each other. When the transition occurs between the first state to the second state, the surgical training model informs the user that the force being applied to one or more of the portions of the simulated training model had exceeded the pre-determined amount.
An electrosurgical instrument is provided that captures, compresses, fuses and cuts tissue between upper and lower jaws connected to pivotably movable handles. The instrument includes a force and over compression regulation mechanism that is configured such that in a clamped configuration, the jaws delivers a gripping force between the first jaw and the second jaw between a predetermined minimum force and a predetermined maximum force.
A61B 17/00 - Surgical instruments, devices or methods
A61B 17/29 - Forceps for use in minimally invasive surgery
A61B 18/00 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
A61B 18/12 - Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
A retractor/protector suitable for use in a surgical incision or a natural orifice comprises a longitudinal axis defining an instrument access channel extending from a proximal end to a distal end; a flexible outer ring; an inner ring; a flexible sheath extending between the outer ring and the inner ring; and at least one rigid segment adapted to attach to the flexible outer ring to thereby increase the rigidity of the outer ring. Embodiments of the retractor/protector are described that have interlocking and non-interlocking rigid segments. Embodiments are also described that have bases that insert into or under the flexible outer ring in addition to or in lieu of rigid segments to increase rigidity and/or provide support for a detachable cap.
A simulated tissue structure for surgical training is provided. The simulated tissue structure includes a first layer made of silicone and a second layer made of silicone interconnected by a third layer made of polyester fiber that is embedded in part in the first layer and in part in the second layer to create a mechanical linkage between the first layer and the second layer. Part of the third layer that is adjacent to the first layer and part of the third layer that is adjacent to the second layer includes fiber strands coated in silicone. An inclusion that mimics an anatomical structure is located between the first layer and the second layer. The third layer of polyester fibers provides a realistic dissection plane for the practice of the surgical excision of the inclusion.
Systems and methods for preventing the seeding of cancerous cells during morcellation of a tissue specimen inside a patient's body and removal of the tissue specimen from inside the patient through a minimally-invasive body opening to outside the patient are provided. One system includes a cut-resistant tissue guard removably insertable into a containment bag. The tissue specimen is isolated and contained within the containment bag and the guard is configured to protect the containment bag and surrounding tissue from incidental contact with sharp instrumentation used during morcellation and extraction of the tissue specimen. The guard is adjustable for easy insertion and removal and configured to securely anchor to the body opening. Protection-focused and containment-based systems for tissue removal are provided that enable minimally invasive procedures to be performed safely and efficiently.
A61B 17/3211 - Surgical scalpels or knivesAccessories therefor
A61B 17/42 - Gynaecological or obstetrical instruments or methods
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
A61B 90/50 - Supports for surgical instruments, e.g. articulated arms
Embodiments of a surgical access port system that comprises a retractor that is adapted for being coupled to a cap and that is particularly useful in natural orifice surgery are described. The retractor comprises an outer ring, wherein the outer ring is configured to be disposed proximate the natural orifice of the patient and substantially surround the orifice; a tubular body; and various stabilizing mechanisms surrounding the tubular body, sized and configured to stabilize and retain the retractor within the orifice. The stabilizing embodiments described herein are useful in all natural orifices and are of particular use in the vaginal surgery.
A renal hilum surgical simulation system is provided. The renal hilum surgical simulation system includes simulated tissue layers and simulated renal organs and/or vasculatures. The renal hilum surgical simulation system is adapted for but not limited to laparoscopic donor nephrectomy surgical procedures.
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
98.
Laparoscopic grasper with force-limiting grasping mechanism
A surgical instrument is provided having an actuator mechanism with an integrated extension element. The surgical instrument comprises a handle assembly, an elongate shaft, and an end effector. The end effector can comprise a jaw assembly having atraumatic pads positioned thereon to reduce force on grasped tissue. An actuator is movable within the elongate shaft to actuate jaws of the jaw assembly responsive to movement of a movable handle of the handle assembly. The actuator can have an integrated extension element that allows the actuator to translate within the elongate shaft upon application of a relatively low force and translate and extend upon application of a relatively higher force to the actuator to limit the force applied by the jaw assembly. The actuator is also able to utilize force stored with the integrated extension element to provide a dynamic amount of force used to grasp the tissue in scenarios where the tissue volume decreases while in the jaws.
A61B 17/29 - Forceps for use in minimally invasive surgery
A61B 17/00 - Surgical instruments, devices or methods
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
A colpotomy model is provided for assisting in the training and practice of users performing a colpotomy procedure. The colpotomy model has a simulated vaginal opening which covers a proximal end of a simulated pelvic frame and a simulated vaginal canal which defines an internal space that encompasses a simulated cervix. The simulated cervix is suspended via at least one cord to provide a realistic response to user interaction with the simulated cervix. The user is directed to manipulate the simulated cervix and make one or more incisions where the simulated vaginal canal becomes reflected near the simulated cervix from the manipulations. The user is then directed to continue through the colpotomy model to access a simulated peritoneal cavity or other portions of the colpotomy model in accordance with a simulated procedure being performed.
A colpotomy model is provided for assisting in the training and practice of users performing a colpotomy procedure. The colpotomy model has a simulated vaginal opening which covers a proximal end of a simulated pelvic frame and a simulated vaginal canal which defines an internal space that encompasses a simulated cervix. The simulated cervix is suspended via at least one cord to provide a realistic response to user interaction with the simulated cervix. The user is directed to manipulate the simulated cervix and make one or more incisions where the simulated vaginal canal becomes reflected near the simulated cervix from the manipulations. The user is then directed to continue through the colpotomy model to access a simulated peritoneal cavity or other portions of the colpotomy model in accordance with a simulated procedure being performed.
