An intraocular lens for correcting or reducing the astigmatism of a cornea includes a pupil that is spatially divided into discrete zones, with each zone having a particular astigmatism magnitude and astigmatism orientation. In one embodiment, the zones all have the same astigmatism magnitude, which is equal and opposite the cornea astigmatism magnitude to within a particular tolerance, such as 0.25 diopters. In one embodiment, some or all of the zones all have different astigmatism orientations, with the angular separation between astigmatism orientations being on the order of the rotational misalignment tolerance of the lens to the cornea. The visual performance of such a lens deteriorates more slowly with rotational misalignment, when compared to a comparable lens having a uniform astigmatism orientation across its entire pupil, leading to more relaxed tolerances for a surgeon that implants the lens.
The field of the invention relates to medical packaging and, more particularly, to trays for holding sterile surgical components. In one embodiment, an ergonomic disposable tray is provided which can rest easily in the palm of the hand and be easily grasped. Moreover, the tray includes the addition of a raised triangular protrusion in all four opposing corners, to make opening the tray equally efficient for both right and left handed users. These features will allow the user to maintain control of the tray while peeling back the lid, keeping the internal components sterile.
A method and system for superimposing a ruler on a visual representation of a surgical procedure is presented. The design includes providing a reference object while recording the visual representation of the surgical procedure, scaling the ruler to correspond to the reference object within the visual representation of the surgical procedure, and superimposing the ruler from the scaling on the visual representation for subsequent viewing.
System and method of photoaitering a region of a material using a pulsed laser beam. The method includes scanning the pulsed laser beam in a first portion of the region with a first pattern, scanning the pulsed laser beam in a second portion of the region with a second pattern, and separating a flap of the material at the region. The system includes a laser, a controller selecting at least first and second patterns, and a scanner operable in response to the controlier. The first pattern has a first maximum acceleration associated with the second portion, and the second pattern has a second maximum acceleration associated with the second portion. The second maximum acceleration is less than the first maximum acceleration. The scanner scans the pulsed laser beam from the laser in the first portion with the first pattern and in the second portion with the second pattern.
A61B 18/20 - 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
A61F 9/008 - Methods or devices for eye surgery using laser
System and method for customizing multifocal ophthalmic lenses, such as an intraocular lens (IOL) or the like, that may be tailored for an individual patient or group of patients beyond the selection of a particular IOL power. One or more eye factors of the patient are determined, a set of different multifocal intraocular lenses having a similar base power are determined based on the eye factors, and a multifocal intraocular lens is selected for the patient from the set based on the eye factors.
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
6.
OPHTHALMIC INTERFACE APPARATUS AND SYSTEM AND METHOD OF INTERFACING A SURGICAL LASER WITH AN EYE
An ophthalmic patient interface system (12) includes an interface device (11 ) and an ocular device (57). The interface device includes a frame (13) having a first end (17) and a second end (15), a lens (27) disposed at the first end, and a skirt (23) affixed to the first end. The second end is adapted to couple with a surgical laser system, and the skirt is adapted to seal against an anterior surface of an eye. The ocular device includes magnifying optics (61, 63, 65) and is adapted to be removably seated within the second end. The magnifying optics image a region on a corneal side of the lens when the ocular device is seated within the second end.
A method for providing a medical product including receiving a request for a medical product for use with a specific patient to be used at a particular location, and creating a patient specific package which includes the medical product. The method further includes associating at least one of the patient specific package or the medical product with the specific patient, and causing the patient specific package to be delivered to the particular location.
G06Q 90/00 - Systems or methods specially adapted for administrative, commercial, financial, managerial or supervisory purposes, not involving significant data processing
8.
METHOD OF MAKING SUB-SURFACE PHOTOALTERATIONS IN A MATERIAL
A method of photoaltering a material using a puised laser beam includes selecting a first pulse energy and a first focal point separation based on a relationship of pulse energy and focal point separation combinations enabling layer separation of the material by photoalteration, and scanning the pulsed laser beam along a scan region at the first pulse energy and the first focal point separation. The relationship has a slope and has a distinct change in the slope. The distinct change in the slope is associated with a second pulse energy of the relationship, and the first puise energy is equal to or less than the second pulse energy.
A method and apparatus for performing a surgical procedure is provided. The surgical procedure may be a phacoemulsification procedure but other procedures may employ the techniques disclosed. The design includes sensing, within the surgical site, for a material change in fluid flow relative to a predetermined threshold. Upon sensing the fluid flow materially differs from the predetermined threshold, the design temporarily increases aspiration vacuum pressure to the surgical site above a predetermined upper threshold toward a maximum vacuum level. The design applies electrically generated disruptive energy, including but not limited to laser and/or relatively low power ultrasonic energy, to the surgical site from a first point in time measured from when aspiration vacuum pressure is above the predetermined upper threshold to a second point in time where pressure falls below a predetermined lower threshold.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
10.
SYSTEM AND METHOD OF INTERFACING A SURGICAL LASER WITH AN EYE
A system (44) for interfacing a surgical laser with an eye includes a first sensing element (72, 74) to couple to an output surface of the laser, an interface lens (52) having second sensing element {71, 76) coupled to a first surface of the interface lens, and a detector (24) coupled to the first sensing element. A second surface of the interface lens contacts the eye. The detector determines when the first sensing element contacts the second sensing element. A method for aligning the laser with the eye includes coupling the laser to the patient interface, sensing an electrical change indicating a position of the output surface with the interface lens, comparing the electrical change with a predetermined value to produce a correction, and re-positioning the laser with the correction.
System (10) and method (100) of photoaitering a region of a materia! using a pulsed laser beam. The method includes randomly scanning the pulsed laser beam in the region, and creating a separation between a first layer of the material and a second layer of the material at the region. The system (10) includes a laser (14) producing a pulsed laser beam, a controller (22) transmitting a signal, and a scanner (20) coupled to the controller. The scanner randomly scans the pulsed laser beam in the region in response to the signal.
Systems (10) and methods (100) of incising a portion of a material include creating a sub-surface separation in a region of the materiai, and incising a periphery of the region with a pulsed laser beam to produce an edge of the portion. The edge includes a periodically varying shape to secure the portion to the material when the portion is reintegrated. The system (10) includes a laser (14) producing the pulsed laser beam, a scanner (20) operable in response to a control signal, and a controller (22) coupled to the scanner. The controller produces the control signal. In response to the control signal, the scanner creates a sub-surface separation in the region with the pulsed laser beam and incises the periphery of the region with the pulsed laser beam to produce the edge (72, 78, 84) with the periodically varying shape.
A system for providing vision contains an aberrometer, a wavefront sensor, and a transfer optical system. The aberrometer is configured to measure a received wavefront. The aberrometer includes a wavefront sensor and a transfer optical system for transferring an input wavefront so as to the provide the received wavefront at or near the wavefront sensor. The system also includes a processor in communication with the aberrometer, a readable memory, and instructions located within the memoiy. The readable memory contains one or more system error parameters and instructions available to the processor. The instructions are for determining at least one aberration of the received wavefront and calculating the input wavefront based on the received wavefront and the one or more system error parameters.
A61B 3/103 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
A61B 3/107 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining the shape or measuring the curvature of the cornea
14.
OCULAR IDENTIFICATION SYSTEM FOR USE WITH A MEDICAL DEVICE
A method and system for authenticating a user of a medical device is provided. Ocular signatures are stored in a database for at least one permitted user. Stored ocular signatures are compared to an individual ocular signature. The user can employ selected functionality of the medical device when at least one stored ocular signature substantially matches the individual ocular signature. The device may include a medical component and a computing device. The computing device includes a database configured to receive and maintain permitted user ocular signatures and a computational utility configured to compare the ocular signature of the user to at least one permitted user ocular signature maintained in the database. Upon determining that the ocular signature of the user substantially matches at least one permitted user ocular signature, the user is authorized to employ selected functionality of the medical device.
G07C 9/00 - Individual registration on entry or exit
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
15.
POLYMER COMPOSITIONS SUITABLE FOR INTRAOCULAR LENSES AND RELATED METHODS
A polymeric material with a molecular response time that makes it suitable for use near fragile body tissues. The polymeric material is useful for both low modulus and high modulus applications thereby simplifying the multi-part polymeric article manufacturing process and creating better integrated multi-part polymeric articles. Cross-linked polymers with different moduli may be obtained utilizing the same or similar starting materials but modifying the amount of catalyst, the amount of cross-linking agent, and/or the amount of methyl vinyl cyclics.
A61L 27/18 - Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
C08F 230/08 - Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal containing a metal containing silicon
C08G 77/38 - Polysiloxanes modified by chemical after-treatment
16.
PARTIAL COATING OF INTRAOCULAR LENSES AND PARTIALLY COATED LENS
Method for partially coating intraocular lenses by masking a portion of the lens, plasma treating, applying a coating to the lens and removing the masking.
A pump for moving a fluid through a fluidics system includes a surface and channel disposed along at least a portion of the surface. The pump also includes a driving mechanism having a rotatable shaft and a plurality of haptics operably coupled to the shaft. A closed portion is formed in the channel as the channel is compressed between the surface and at least one of the haptics, the closed portion having a thickness between the surface the haptic. The pump additionally has a circular path and a shaft path. The haptics are completely disposed inside the circular path and traversing the circular path during operation of the driving mechanism. The shaft path is traversed by shaft during operation of the driving mechanism, such at least one of the haptics is always in contact with the channel. The surface has a radius of curvature in the vicinity of the closed potion that is greater than the sum of a radius of the circular path and the thickness of the closed portion.
F04B 43/12 - Machines, pumps, or pumping installations having flexible working members having peristaltic action
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
18.
MULTIZONAL ASPHERIC LENS WITH EXTENDED DEPTH OF FOCUS
An intraocular lens for providing enhanced vision includes an optic with a clear aperture over which light may be focused onto or near the retina of an eye. The optic includes an anterior surface and an opposing posterior surface, the surfaces disposed about an optical axis. The optic includes a central zone and an outer zone disposed about the central zone. The central zone comprises a plurality of optical powers that progressively vary between a first optical power at a center of the central zone and a second optical power at a periphery of the central zone, wherein the absolute value of the difference between the first optical power and the second optical power being between predetermined values. The outer zone comprises a third optical power and may also have a negative spherical aberration. The optic typically has a variation in optical power over the entire clear aperture that is less than a predetermined amount.
The invention is generally directed to systems and methods for ophthalmic surgery, and more particularly to systems and methods for phacoemulsification using vacuum-based aspiration pumps. In accordance with one embodiment, a vacuum-based phacoemulsification system, having a handpiece, includes a subsystem to detect an occlusion occurring at the handpiece during operation.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
20.
SYSTEMS AND METHODS FOR MANAGING AND DISTRIBUTING USER PROFILES FOR SURGICAL SYSTEMS
A medical system is presented, where the system includes a medical profile directory configured Io maintain a set of medical system profiles, a medical profile manager configured to update and maintain medical system profiles within the medical profile directory, and a server configured to interface with the medical profile manager to facilitate medical system profile maintenance. The server is configured to transmit information from at least one medical system profile to a surgical system, thereby enabling the surgical system to employ a current operational parameter within the medical system profile desired by a user.
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
21.
VISCOELASTIC APPLICATOR FOR IOL INSERTION APPARATUS
A system for preparing an intraocular lens (IOL) injector (22) for receipt of an IOL. A manifold (24) mates with an injector cartridge and easily distributes a lubricating agent to a load chamber of the cartridge. The IOL is then transferred into the load chamber. The cartridge may be rotatably coupled to the handpiece, and the converted from a preparation and load position to a delivery position. The manifold may remain external to the load chamber or fit within the load chamber and include a handle that remains outside. One or more internal channels in the manifold lead from one or more inlet ports to surfaces in the load chamber than contact the IOL.
A system for easily transferring an intraocular lens (IOL) from a lens case (670) to an inserter (800), and then into a patient's eye. The lens case has a transfer mechanism (672) therein which retains the IOL until engagement with the inserter. The transfer mechanism may include jaws (700, 704) having a closed configuration for retaining the IOL and an open configuration for releasing the IOL. Engagement of the inserter with the lens case automatically opens the jaws and transfers the IOL to the inserter. The IOL is transferred into a load chamber (844) of a nosepiece (606) rotatably coupled to a handpiece (600). After transfer of the IOL, the nosepiece is rotated from a load position to a delivery position. The IOL may have an optic (710) and a haptic (712a, 712b) coupled to the optic, and the lens case may be capable of configuring the haptic as desired to facilitate its transfer into an inserter and/or into the eye. For instance, the lens case may fold one or both of the haptics over the optic. Preferably, the lens case maintains the haptic in this position during transfer of the intraocular lens into an inserter and/or inserter cartridge. A manifold (662) for easily distributing a viscoelastic medium to the load chamber (844) of the inserter is also provided.
A method and system for maintaining medical items is provided. The system includes a medical database structure, a medical database utility configured to maintain medical database contents by organizing medical information into levels, and a user interface component configured to enable a user to access the medical database utility. The medical database utility provides a user with an ability to access the user's collections of settings in the medical database, the user' s collection of settings maintained separately from settings accessible by other users. The method stores medical data items in a database configured with multiple levels of organization, establishes a logical relationship between medical data items at each level of organization, presents a user with available medical system choices at each level of organization, and enables the user to select from among the available medical system choices presented at each level of organization.
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
A method and apparatus of controlling access to a system containing vital corporation software and storing confidential data assets situated in an open accessible environment is provided. The method includes calculating a signature value for at least one file usable with the system, transferring the calculated signature value to a signature file, and providing at least one signature value in the signature file and at least one associated file to a file system configured to be received by the system. At least one signature value and at least one associated file are inspected by the system to verify the associated file is a known system software application asset. The system comprises an input/output data port configured to receive the external memory storage device, and an operating system capable of reading system data from and writing system data to the memory storage device.
The invention is generally directed to phacoemulsification systems and methods, and more particularly to systems and methods for providing transverse phacoemulsification. In accordance with one embodiment, a phacoemulsification system is provided having a handpiece with a needle, wherein the phacoemulsification system is configured to vibrate the distal end of the needle in both an effective transverse direction and an effective longitudinal direction when power, having a single effective operating frequency is applied to the handpiece.
A method and system of establishing communications between at least two independent software modules in a safety critical system, such as a medical system, is provided. The design comprises providing an exclusive Bluetooth connection between at least two wireless devices. A master wireless device (212) is configured with Bluetooth master device functionality and a slave wireless device (213) is configured with Bluetooth slave device functionality. The wireless devices are employed in performing a medical procedure. The method further comprises acquiring a stored unique address from the slave wireless device over the Bluetooth connection, comparing the stored unique address to a master wireless device unique address available at the master wireless device, and exclusively pairing the master wireless device and the slave wireless device when the unique address acquired from the slave wireless device is found to identically match the master wireless device unique address.
H04L 29/06 - Communication control; Communication processing characterised by a protocol
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
27.
METHODS AND DEVICES FOR MEASURING TEAR FILM AND DIAGNOSING TEAR DISORDERS
Methods and devices measure eye blinks and tear film lipid and aqueous layer thickness before and following ophthalmic formula application onto the ocular surface, especially wherein the ophthalmic formula is an artificial tear. The methods and devices are suitable for dry eye diagnosis. The methods and devices are suitable for use to evaluate ophthalmic formula effects on the tear film and to use such information to diagnose ophthalmic formula treatment of ocular disease conditions such as dry eye in the absence of contact lens wear or post-surgical eye drop treatment and diagnosis. The methods and devices are also suitable for use in the optimization of ophthalmic drug dosage forms and sustained drug release.
Implantation of an accommodating intraocular lens in an eye may require the accurate measurement of the size, circumference, or diameter of the capsular bag of the eye. After the natural crystalline lens has been surgically removed, a flexible ring (30) may be temporarily or permanently inserted into the capsular bag for measuring the circumference of the capsular bag. The ring is generally compressible to fit through a surgical incision, then expands to fill the capsular bag along an equatorial region. The ring has a central component (32, 33) that changes shape as the ring is compressed. The shape change is generally correlated to the size of the capsular bag and may be measured visually or with a camera through the cornea, the measurement being generally independent of corneal magnification.
A61B 3/10 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
A61B 3/117 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for examining the anterior chamber or the anterior chamber angle, e.g. gonioscopes
A61F 9/00 - Methods or devices for treatment of the eyesDevices for putting in contact-lensesDevices to correct squintingApparatus to guide the blindProtective devices for the eyes, carried on the body or in the hand
G01B 5/12 - Measuring arrangements characterised by the use of mechanical techniques for measuring diameters internal diameters
The present embodiments relate to a novel method of making quaternary ammonium polymers comprising the steps of: a) mixing l,4~bis-dimethylamino-2~bulene, triethanolamine, water and an acid; and b) introducing a l,4-diha!o-2-butene to the mixture so as to initiate a reaction resulting in the quaternary ammonium polymer.
An intraocular lens is disclosed, with an optic (21,28,43,63,82,111,130,200,230) that changes shape in response to a deforming force exerted by the zonules of the eye. A haptic (23,30,42,62,81,112,120,190,220) supports the optic around its equator and couples the optic to the capsular bag of the eye. The haptic may be pre-stressed before the optic is placed within it. After such placement, the pre-stress may be relieved, and the haptic may produce stress in the optic. The pre-stress may produce a radial tension or a radial compression in the optic. Alternatively, once the optic is placed within the haptic, both may undergo a process that changes the size and/or shape of one with respect to the other, causing a stress within the optic. This process may produce a radial tension or a radial compression in the optic. The haptic may include an annular ring having outer and inner diameters that may depend on the stiffness of the haptic.
An intraocular lens is disclosed, with an optic that changes shape in response to a deforming force exerted by the zonules of the eye. A haptic (120) supports the optic around its equator and couples the optic to the capsular bag of the eye. The region of contact between the optic and the haptic extends into the edge of the optic (130), similar to the interface between a bicycle tire and the rim that holds it in place. The haptic may be stiffer than the optic. The haptic may have the same refractive index as the optic. The haptic may include a saddle-shaped portion in contact with the adjustable optic, with a convex profile along an optical axis; and a concave profile in a plane perpendicular to the optical axis.
An intraocular lens for providing accommodative visions to a subject includes an adjustable optic and a haptic that is operably coupled to the optic. The adjustable optic comprises an optical axis, a central zone disposed about the optical axis, and an annular zone surrounding the central zone. The optic may also comprise additional annular zones disposed about the central zone and the first annular zone. The haptic comprises a transparent portion protruding into the adjustable optic. The intraocular lens has a disaccommodative configuration in which the central zone has a base optical power and an accommodative configuration in which the central zone has an add optical power that is at least about 1 Diopter greater than the base optical power, preferably at least about 2 Diopters greater than the base optical power. In some embodiments, the add optical power is at least 3 Diopters, or even 4 Diopters, greater than the base optical power. The central zone and the annular zone have different optical powers when the adjustable intraocular lens is in the accommodative configuration and/or when the adjustable intraocular lens is in the disaccommodative configuration.
An eye treatment system for performing an ocular surgical procedure contains an eye treatment probe or handpiece, a treatment console, an eye treatment cassette, and a pump formed by the engagement of the treatment cassette with the treatment console. The handpiece is configured to provide at least irrigation fluid to, and aspiration of fluid from, a subject eye. The treatment console comprises a controller configured to control the eye treatment probe. The eye treatment cassette engages the treatment console to couple the eye treatment probe with the treatment console. The pump comprises a pump head having a plurality of projections disposed to rotate about an axis, a ramp disposed near the rotating projections, and a resilient channel configured to transfer fluid when engaged by the ramp and the plurality of projections. The ramp is configured to reduce pressure fluctuations with the eye during a surgical procedure and comprises and entrance portion, a central portion, and an exit portion. The ramp is configured such that the arcuate extent of the entrance portion is unequal to the arcuate extent of the exit portion.
F04B 43/12 - Machines, pumps, or pumping installations having flexible working members having peristaltic action
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
A method and system for calibrating an analog sensor used in a digital measurement system is provided. The design comprises generating a precise pressure value set at multiple calibration points and supplying said precise pressure value set to an uncalibrated pressure sensor (403), detecting sensor changes for the uncalibrated pressure sensor (403) based on each precise pressure value generated, polling an actual pressure reading associated with a sensor change for the uncalibrated pressure sensor (403) for each calibration point, and establishing a mathematical relationship between measured value readings and actual pressure for the uncalibrated sensor. Establishing the mathematical relationship converts the uncalibrated sensor to a newly calibrated sensor. A known good sensor (404) may be employed to enhance calibration reliability. The method and system for calibrating an analog sensor are applied to pressure transducers in phacoemulsification machines that are used in eye surgery of cataracts.
G01L 27/00 - Testing or calibrating of apparatus for measuring fluid pressure
A61F 9/00 - Methods or devices for treatment of the eyesDevices for putting in contact-lensesDevices to correct squintingApparatus to guide the blindProtective devices for the eyes, carried on the body or in the hand
35.
SERIAL COMMUNICATIONS PROTOCOL FOR SAFETY CRITICAL SYSTEMS
A method and system of establishing communications between at least two independent software modules in a safety critical system, such as a medical system, is provided. The design comprises providing a media connection between software modules, wherein the software modules employ a communications protocol and participate in a bi-directional master-slave relationship between a master module and a slave module. The design further comprises sending arbitrary data between the master and slave modules, wherein the arbitrary data is used by the master module to control and obtain status from the slave module, and sending arbitrary data further enables the slave module to return data and status information to the master module. The design also employs a safety critical communications watchdog between the master and slave modules, wherein the safety critical communications watchdog monitors communications quality between the master and slave modules. The bandwidth efficient communications protocol comprises bytes transmitted using a packet consisting of a start indication, a message identifier, an optional service identifier, a class identifier, an optional length of data pertinent to the medical device, a checksum, and a checksum complement.
H04L 29/06 - Communication control; Communication processing characterised by a protocol
A61F 9/00 - Methods or devices for treatment of the eyesDevices for putting in contact-lensesDevices to correct squintingApparatus to guide the blindProtective devices for the eyes, carried on the body or in the hand
The present invention is generally directed to improved methods, devices, and systems for eye surgery. In some embodiments, the invention may provide new and/or improved devices, systems, and methods for detecting surgical fluids in a fluidics cassette, particularly cassettes which are used to couple an eye treatment probe to an eye treatment console. Rather than relaying on internal reflection by a gas-liquid interface, the fluid detection techniques described herein may make use of the changes in propagation of light through a portion of the holding tank when the portion varies between empty and full. For example, light may propagate directly through the holding tank portion when there is no surgical fluid, but may be directed away from a light detector when the portion of the holding tank is filled with surgical fluid. As the light may be controllably refracted using the interface between the transparent holding tank material and the surgical fluid, the propagation properties of the light may be more reliably predicted and controlled. While the sensor may not determine the actual liquid level within the holding tank, a plurality of individual liquid detectors may be sufficient to determine when it is appropriate to (for example) turn drain pumps on and off, when the holding tank is in danger of being overfilled, and the like. Other aspects of the invention may provide devices, systems, and methods for producing different types of fluidics cassette using a single cassette body type.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
Devices, systems and methods interface a cassette with an eye treatment system console (14) to provide coupling between the console (14) and an eye treatment probe (12). The console (14) may receive the cassette (16) using a driven axial translation linkage that inhibits rotation of the cassette. The cassette may facilitate accurately positioning of a pressure sensor (64a) relative to the console (14) by allowing sliding movement between the sensor and a cassette body. Multiple peristaltic drives (54, 56) may be mounted to the console (14) so that their rotors rotate about a common axis. An integrated mount structure may support and/or position components of the console which will interface with cassette, and an axially compressible vacuum connector (72b) of the console (14) seal to a tapered vacuum coupler (72a, 132) of the cassette (16).
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
An eye treatment system is configured for performing an ocular surgical procedure and includes an eye treatment probe (22), a treatment console (24) including a controller (30), and an eye treatment cassette (26) for coupling the eye treatment probe (22) with the treatment console (24). The eye treatment probe is configured to provide at least irrigation fluid to, and aspiration of fluid from, a subject eye (E). The cassette comprises a cassette body, first and second arcuate ramps (46, 49), and a holding tank (43). The cassette (26) has an engagement axis (AE) along which elements of the cassette are configured to generally engage with mating elements of the treatment console. The cassette's first arcuate ramp (46) is proximal a first fluidics channel (45) configured to form a first volumetric pump (41) upon engagement with the treatment console (24). Also the cassette's second arcuate ramp (49) is proximal a second fluidics channel (48) configured to form a second volumetric pump (42) upon engagement with the treatment console. The cassette also includes a holding tank fluidly that is coupled to the volumetric pumps (41, 42).
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
The present invention is generally directed to improved methods, devices, and systems for controlling surgical fluid flows, particularly during treatment of an eye. In many embodiments, the invention provides a console that interchangeably accepts multiple types of eye treatment cassettes. The cassettes enable one or both of displacement-based or vacuum-based aspiration. The console and the cassette may communicate to establish the functionality of the installed cassette. The multiple types of cassettes may be produced using a common cassette frame and may include a visual indication of functionality.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
A sterile drape (10) maintains a sterile field during use of a flat panel touch screen (22) during diagnostic and/or therapeutic procedures. The drape comprises sterile front (50) and rear (52) sheets formed from a thin layer of a transparent material that accommodates the transmission of tactile pressure. The rear sheet may comprise a folded extension of the front sheet along the top edge (54), with the sheets bonded along the sides. A bottom opening between the front and the rear sheets allows cooling air to enter, and at least one ventilation opening (68) is near the top.
Methods, devices, and systems for laser eye surgery generally make use of a console (14) that interchangeably accepts multiple types of eye treatment cassettes (16). The cassettes (16) enable one or both of displacement-based or vacuum-based aspiration. The console (14) and the cassette may communicate to establish the functionality of the installed cassette by utilizing a component indigenous to the operation of the cassette (16). A dual-mode cassette (16A) may include a separable holding tank (56) for enabling vacuum-based aspiration. A displacement-based pump (60) may be provided to drain the holding tank (56) while the vacuum system continues to aspirate fluids. A vacuum sensor (64) for controlling the flow of aspirated fluids may have three ports for communicating with a handpiece (12), a displacement-based pump (54), a vacuum-based pump (44), or an irrigation source (46). The handpiece (12) may be vented during vacuum-based aspiration by opening a vent valve interposed between the handpiece (12) and the vacuum source.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
42.
REVERSIBLE PERISTALTIC PUMP AND OTHER STRUCTURES FOR REFLUX IN EYE SURGERY
Devices, systems, and methods for treatment of an eye alter aspiration flow from the eye in response to an occlusion of the aspiration conduit pathway. Where aspiration is drawn from the eye (E) using a volumetric pump (54), the pump (54) can be reversed so as to induce fluid reflux from the aspiration conduit pathway into the eye (E) to help clear the occlusion. The pump may vary the reverse flow in response to sensed aspiration pressure or the like, and the reverse flow may be halted before the pressure within the aspiration conduit pathway adjacent the eye significantly exceeds the irrigation fluid pressure and/or the pressure within the eye. Reflux may alternatively be generated by modulating a vent valve (55) disposed between an irrigation conduit pathway and the aspiration conduit pathway.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
43.
INTRAOCULAR LENSES FOR MANAGING GLARE, ADHESION, AND CELL MIGRATION
An intraocular leas for providing vision to a subject contains an optic, a support structure coupled to the optic. The intraocular lens also includes a textured surface and/or subsurface layer. The optic is disposed about an optical axis and comprises an anterior surface and an opposing posterior surface, the surfaces being configured to focus light when implanted within an eye having a capsular bag. The textured surface is disposed over a surface portion of the intraocular lens and includes a plurality of periodically- spaced protrusions, each protrusion having a smooth distal face and a sharp corner edge configured to engage a wall of the capsular bag and/or at least one cell disposed along the wall. The subsurface layer is configured to scatter an amount of light that is at least twice the amount of light scattered by portions of the material adjacent the subsurface layer or at least twice the amount of light scattered by another intraocular lens that does not have the subsurface layer, but which is otherwise substantially equivalent.
An intraocular lens for providing vision to a subject contains an optic, a support structure coupled to the optic. The intraocular lens also includes a textured surface and/or subsurface layer. The optic is disposed about an optical axis and comprises an anterior surface and an opposing posterior surface, the surfaces being configured to focus light when implanted within an eye having a capsular bag. The textured surface is disposed over a surface portion of the intraocular lens and includes a plurality of periodically- spaced protrusions, each protrusion having a smooth distal face and a sharp comer edge configured to engage a wall of the capsular bag and/or at least one cell disposed along the wall. The subsurface layer is configured to scatter an amount of light that is at least twice the amount of light scattered by portions of the material adjacent the subsurface layer or at least twice the amount of light scattered by another intraocular lens that does not have the subsurface layer, but which is otherwise substantially equivalent.
The present invention addresses the treatment of ocular conditions by the enhancement of lens regeneration. Enhancement of lens regeneration is accomplished by the administration of a viscoelastic material in association with a composition comprising a polymer having functional acryl groups useful in the preparation of intraocular lenses (lOLs).
The invention is generally directed to systems and methods for fluid control, and more particularly to systems and methods for power and flow rate control for aspiration. In accordance with one embodiment, an aspiration system includes an aspiration line having distal and proximal ends and an aspiration port defined in the distal end; a fluid transport device operatively coupled to the proximal end of the aspiration line; and a flow restrictor operatively coupled to the aspiration line in between the fluid transport device and the aspiration port. To measure occlusion within the line, first and second pressure sensors are utilized, the first sensor being operatively coupled to the aspiration line between the port and the restrictor and the second sensor being operatively coupled to the aspiration line between the restrictor and the fluid transport device. The pressure differential between the two sensors can provide an indication of the onset, presence, and/or elimination of an occlusion.
A61M 1/00 - Suction or pumping devices for medical purposesDevices for carrying-off, for treatment of, or for carrying-over, body-liquidsDrainage systems
47.
SYSTEMS AND METHODS FOR HISTORICAL DISPLAY OF SURGICAL OPERATING PARAMETERS
The invention is generally directed to systems and methods for medical care, and more particularly to systems and methods for historical display of surgical operating parameters. A first embodiment is a surgical system that includes a surgical instrument having a plurality of associated surgical parameters, each parameter having a value at each instant during an associate surgical procedure. The system further includes a computer system configured to record the values of each associated surgical parameter at each instant during an associate surgical procedure and display the values of each associated surgical parameter at each instant in a human readable form.
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)
A method and apparatus for precisely controlling particle movement relative to a phacoemulsification needle tip is provided. The design monitors actual vacuum present and calculates a pulse shape amplitude waveform proportional to the amount of measured vacuum. An increase in vacuum indicates that the handpiece/needle is becoming occluded by a large particle. The present design determines whether additional power is required to bump or move a large particle away from the needle tip. The present design may employ a control loop that senses and continuously monitors vacuum. The design may dynamically vary the amount of ultrasonic energy delivered to the surgical area in response to the observed actual vacuum, and can actively vary the amount of power delivered to the surgical area based on the size of the particle and the resultant vacuum realized.
The invention is generally directed to systems and methods for medical care, and more particularly to systems and methods for voice control of a medical device. A first embodiment includes a voice controlled surgical system, such as a phacoemulsification system, a microphone coupled to the surgical system, and a voice controlled computer interface coupled with the surgical system. The voice controlled interface is configured to receive a request to invoke a voice command via the microphone, to listen for a voice command upon receipt of a valid request to invoke a voice command, and to forward a valid voice command upon receipt of the valid voice command to the surgical system for execution.
An ophthalmic device (10,110) is provided for a patient that has a basic prescription for distant vision, the ophthalmic device including a primary optic (14,114) and a supplemental optic (12,40). The primary optic is configured for placement in the eye and has a base optical power configured to substantially provide the basic prescription. The supplemental optic has an optical power that is less than the optical power of the primary optic and is configured to provide, in combination with the primary optic, a combined optical power that provides the basic prescription of the patient. In addition, at least one surface of the primary optic is configured to deform in response to an ocular force so as to modify the combined optical power by at least 1 Diopter. The ophthalmic device may further include a movement assembly (18,118) operably coupled to the primary optic that is structured to cooperate with the eye to effect accommodating deformation of the primary optic in response to an ocular force produced by the eye. The movement assembly may also be configured to provide accommodating axial movement of the primary optic.
A multipurpose phacoemulsification needle includes a needle body having a lumen therethrough for aspiration of fluids and tissue. A needle body includes a proximal end adapted for attachment to a phacoemulsification handpiece, a curved portion and a tip portion disposed at a distal end of the needle body. The tip portion includes a truncated hemisphere having a flat surface thereon and a port disposed in the fiat surface. The truncated hemisphere includes a rounded surface of sufficient area to enable capsule polishing and when driven in an ultrasonic mode, the needle is also suitable for irrigation and aspiration as well as phacoemulsification of lens tissue.
A61F 9/00 - Methods or devices for treatment of the eyesDevices for putting in contact-lensesDevices to correct squintingApparatus to guide the blindProtective devices for the eyes, carried on the body or in the hand
52.
STABLE OPHTHALMIC OIL-IN-WATER EMULSIONS WITH OMEGA-3 FATTY ACIDS FOR ALLEVIATING DRY EYE
An ophthalmic composition includes oil globules dispersed in an aqueous phase. The globules include a surfactant component, a polar oil component that includes an Omega-3 fatty acid and a viscosity modifying agent. The surfactant to oil ratio produces an average size of globules of about 0.1 microns or less. The viscosity is at least as viscous as.25% 800K sodium hyaluronate. The composition can be used for treatment of dry eye. The compositions are stable and can have anti-microbial activity sufficient for use as contact lens disinfecting solutions.
In one aspect of the invention, a multi-purpose phacoemulsification needle comprises a needle body disposed about a ceiiterline and has a lumen disposed therein. The lumen has a first cross-sectional area that is normal to the centerline. The needle further comprises a distal tip comprising an arcuate surface and a face with a port therein. The port has a second cross-sectional area in a plane generally parallel to the face and is in fluid communication with an internal cavity that has a third cross-sectional area normal to the centerline, the internal cavity being in fluid communication with the lumen. The needle is configured such that the third cross-sectional area is greater than either the first cross-sectional area or the second cross-sectional area. In another aspect of the invention, the needle comprises a plurality of fins projecting inwardly from the lumen.
The present invention addresses the treatment of ocular conditions by the enhancement of lens regeneration. Enhancement of lens regeneration is accomplished by the administration of a composition comprising a polysiloxane polymer having functional acryl groups useful in the preparation of intraocular lenses (10Ls).
A method and apparatus for managing the establishment of a wireless connection between an instrument host and a non-fixed device is provided. The method comprises acquiring the non-fixed medical device address over a fixed wire by replacing the traditional wireless searching mechanism. The method also comprises providing an authentication mechanism between the instrument host and the non-fixed device, for example, across a wireless communications network.
A method for operating a surgical system including placing a handpiece in an operative relationship with an eye for a surgical procedure. The method also comprises supplying irrigation fluid from an irrigation fluid source to the eye and applying vacuum from an aspiration source to the handpiece in order to aspirate the irrigation fluid from the eye through the handpiece. The method further comprises sensing a value of an occlusion indicating parameter corresponding to an occlusion of the handpiece and, from the sensing of the value, determining a duration of occlusion. The method additionally comprises controlling a controlled system parameter based at least in part on the duration of occlusion.
A geometric measurement system is adapted to precisely measure one or more surfaces of objects such as corneas, molds, contact lenses in molds, contact lenses, or other objects in a fixture. The geometric measurement system can employ one or more of three possible methods of measurement: Shack-Hartmann wavefront sensing with wavefront stitching; phase diversity sensing; and white light interferometry.
Intraocular lenses comprised of an acrylic-silicone hybrid polymer are disclosed. The intraocular lenses described herein are suitable for insertion through incisions of 2 mm or less.
An intraocular lens with a hydrophilic polymer coating composition and methods for using same are provided. Specifically, a composition suitable for reducing tackiness in intraocular lens is provided wherein an acrylic intraocular lens is treated by vapor deposition with an alkoxy silyl terminated polyethylene glycol polymer composition. Methods for making an intraocular lens with a hydrophilic polymer coating are also provided.
A method and apparatus for wireless device power management is provided. The method comprises providing a charge to an intermediate power cell by electrically connecting the intermediate power cell to a power source, disconnecting the intermediate power cell from the power source, and electrically connecting the wireless device to the intermediate power cell . Such electrical connecting enables power cell recharging within the wireless device.
A lens case for storing an intraocular lens contains a housing for storing an intraocular lens and a support member configured to support the intraocular lens. The support member includes a plurality of jaws, the jaws having a closed configuration for holding the intraocular lens and an open configuration for releasing the intraocular lens. The lens case further comprises a passage formed when the jaws are in the open configuration, the passage including an opening in the lens case for transfer of the intraocular lens into an intraocular lens inserter. The lens case may further comprise an intraocular lens that is disposed between the jaws, the intraocular lens comprising an optic and a haptic coupled to the optic. The lens case may be configured to maintain the haptic in either a first position in which a distal portion of the haptic is disposed farther from the optic or a second position in which the distal portion of the haptic is disposed closer to optic. Preferably, the lens case is configured to provide the second position during transfer of the intraocular lens into an inserter and/or inserter cartridge.
A series of deformable, accommodating intraocular lenses is disclosed, where the series subtends a range of nominal powers . The capsular bag of the eye exerts a distorting force on the lens, thereby changing its power and allowing for accommodation. A full accommodation range is the lens power that brings a distant object into focus, subtracted from the lens power that brings a near object into focus. Each lens (10) in the series has essentially the same shape, which is optimized to maximize the accommodation range for a given distorting force. Typically, the lenses in the series have a meniscus shape, although plano-convex and bi-convex may also be used, in order to vary the nominal power for each lens in the series, without significantly affecting the accommodation range, a diffraction grating (13) is applied to one or both of the lens surfaces (11, 12) , where the grating power is different for each lens in the series.
An intraocular lens (300) for insertion into the capsular bag of an eye contains an optic (302), an outer periphery, and an outer support structure (304). The optic has a periphery and centered about an optical axis. The outer periphery is disposed about the optic and configured to engage an equatorial region of the capsular bag of an eye. The outer support structure is disposed along the periphery and spaced from the optic with voids outer support structure and the optic. The intraocular lens further comprises a first intermediate member ( 308) and a weakened region (310) disposed along the outer periphery between the outer support structure and the first intermediate member. The first intermediate member operably couples the optic and the outer support structure. The weakened region is attached to and configured to provide relative motion between, the outer support structure and the first intermediate member in response to the ciliary muscle of the eye.
The present invention addresses the treatment of ocular conditions by the enhancement of lens regeneration. This is accomplished by the administration of a high viscosity composition including a hyaluronic acid compound. Excess high viscosity composition may be removed by focal laser photophacoablation. Additionally, a collagen product may be injected within the lens capsule to improve lens cell proliferation and differentiation, and to improve the configuration, shape and structure of regenerated lenses. Various embodiments involving the enhancement of lens regeneration are described. For example, lens regeneration may be enhanced by filling the lens capsule bag with the inventive hyaluronic acid compound; by inserting at least one collagen patch in the lens capsule; and/or by injecting a collagen-based product into the lens capsule.
A haptic (30, 50, 59, 69, 89) is provided for use in an accommodating intraocular lens. The haptic has multiple filaments, each connected to the edge of the optic (28,48,58,68,88,98,108) at one end. Each filament has a shape that conforms to an equatorial region of the capsular bag (18). The haptic couples the forces exerted by the capsular bag of the eye (10) during accommodation radially to the edge of the optic, produce a diametric expansion or compression of the optic. This diametric motion distorts the optic, producing a change in any or all of the anterior radius, the posterior radius, and the thickness. These changes affect the power of the lens and/or location of the image. The haptic may optionally have a thin membrane (66) joining the filaments at the optic end, and may optionally have a connecting ring (62) that joins the filaments at the end opposite that of the optic.
A method and apparatus for connectivity management of a wireless device is provided, such as a wireless medical device. The method comprises providing a wireless connection between at least two medical devices, the at least two medical devices comprising a primary medical device and a secondary medical device, causing the primary medical device to transmit and the secondary medical device to receive state signals wirelessly across a plurality of communication data channels which are reduntantly addressed by alternating the same transmission between them. The apparatus can be embodied in a foot pedal controlling a medical device.
H04B 1/74 - Details of transmission systems, not covered by a single one of groups Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus
G08C 15/06 - Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path successively, i.e. using time division
G08C 17/02 - Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
An intraocular lens includes a deformable optic, a rigid optic, and a support structure. The deformable optic is disposed about an optical axis and comprises a solid material and a deformable surface. The rigid optic is disposed about the optical axis and comprises a solid material and a rigid surface. The support structure is operably coupled to at least one of the optics for pressing the deformable surface and the rigid surface together in response to or in the absences of an ocular force, whereby at least a portion of the deformable surface changes shape such that the optical power of the at least a portion of the deformable surface and/or the intraocular lens changes by at least 2 Diopter.
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