Patent application number | Description | Published |
20090048608 | TORIC LENSES ALIGNMENT USING PRE-OPERATIVE IMAGES - Proper selection and centering of an intraocular lens (IOL) is provided. An image of an eye, which may be captured during pre-operative tests and provided to a program operable to calculate the power and axis orientation of the IOL, is used to determine the location and orientation of the IOL. This produces an output or placement guide used to properly center and orient an IOL within the eye. | 02-19-2009 |
20090049397 | System And Method For A Simple Graphical Interface - Embodiments of systems and methods for a simplified interface are disclosed. More specifically, embodiments of modes of interaction with a surgical console may be provided such that these modes of interaction limit or curtail the range of functionality which may be adjusted. In particular, certain embodiments may present one or more interfaces for user interaction which allow a user to select from a set of preprogrammed options, where the interface or the set of preprogrammed options may correspond to the mode in which a user is interacting with the surgical console. Each of these preprogrammed options may correspond to settings for one or more parameters such that by selecting a preprogrammed option the surgical console is configured according to these settings. | 02-19-2009 |
20090258955 | INTRAOCULAR IRRIGATING SOLUTION HAVING IMPROVED FLOW CHARACTERISTICS - Improved intraocular irrigating solutions are described comprising a cellulose derivative such as hydroxypropylmethylcellulose. In addition, certain solutions of the present invention comprise glutathione and dextrose. The solutions have enhanced viscosities that reduce the risk of damage to intraocular tissues during intraocular surgical procedures by reducing the turbulence of the solutions and dampening the movement of tissue fragments and air bubbles. The solutions preferably also have modified surface tensions that more closely resemble the surface tension of the aqueous humor. | 10-15-2009 |
20090306583 | Method of Operating An Ultrasound Handpiece - A method of operating an ultrasonic handpiece by pulsing the power supplied to the handpiece and varying the type of vibration during the power pulse. | 12-10-2009 |
20100004585 | Ultrasonic Handpiece - A handpiece having a single set of piezoelectric elements polarized to produce longitudinal motion when excited at the relevant resonant frequency. The piezoelectric crystals are connected to an ultrasonic horn to which a cutting tip is attached. The horn and/or the cutting tip contains a plurality of diagonal slits or grooves. The slits or grooves produce optimized torsional movement in the cutting tip when the piezoelectric crystals are excited at a second resonant frequency. Preferably, the two drive frequencies are not coincident, but provided in non-overlapping pulses. | 01-07-2010 |
20100004586 | Ultrasound Handpiece - A handpiece having at least one set of piezoelectric elements polarized to produce longitudinal motion when excited at the relevant resonant frequency. The piezoelectric crystals are connected to an ultrasonic horn to which a cutting tip is attached. The horn and/or the cutting tip contains a plurality of diagonal slits or grooves. The slits or grooves produce optimized torsional movement in the cutting tip when the piezoelectric crystals are excited at a second resonant frequency. | 01-07-2010 |
20100036256 | OFFSET ULTRASONIC HAND PIECE - An ultrasonic hand piece has a horn, piezoelectric crystals, and a cutting tip. The piezoelectric crystals and cutting tip are coupled to the horn. A centerline of the piezoelectric crystals is offset from a center line of the cutting tip such that oscillatory movement is produced in the cutting tip when the piezoelectric crystals are excited. | 02-11-2010 |
20100036406 | Method of Controlling a Surgical System Based on a Load on the Cutting Tip of a Handpiece - A surgical system that is able to sense the onset of an occlusion or other surgical event as well as the instant an occlusion breaks. To help avoid overheating of the tip, the system determines an approximate temperature of the eye using an irrigation flow rate and reduces the power to the handpiece automatically if an overheating situation is predicted. Alternatively or in addition, the system monitors the power drawn by the handpiece, which is indicative of the cutting load on the tip, and automatically adjusts the power or stroke of the tip to compensate for increased loads on the tip. | 02-11-2010 |
20100094309 | Automated Intraocular Lens Injector Device - An intraocular lens injection device comprises a tubular housing with a plunger longitudinally disposed within the tubular housing. An electric drive system longitudinally translates the plunger so that its tip engages an insertion cartridge to fold and displace an intraocular lens disposed within and to inject the folded lens into the lens capsule of an eye. A control circuit is configured to start translation of the plunger, responsive to user input, to detect at least one fault condition based on a counter-electromotive force produced by the electric motor, and to stop translation of the plunger assembly responsive to the detected fault condition, which may comprise excessive resistance to forward or rearward translation of the plunger or insufficient resistance to forward translation of the plunger. | 04-15-2010 |
20100094321 | Ultrasound Handpiece - A handpiece having at least one pair of vibrating piezoelectric elements that are polarized and arranged within the handpiece so as to produce vibrations that are orthogonal, or otherwise at an angle to, the longitudinal centerline of the handpiece. Vibrating the cutting tip at an angle to its longitudinal axis creates additional shearing at the distal end of the tip, enhancing the tissue cutting action of the tip. | 04-15-2010 |
20100121364 | Method of Controlling A Surgical System Based On A Load On The Cutting Tip Of A Handpiece - A surgical system that is able to sense the onset of an occlusion or other surgical event as well as the instant an occlusion breaks. To help avoid overheating of the tip, the system determines an approximate temperature of the eye using an irrigation flow rate and reduces the power to the handpiece automatically if an overheating situation is predicted. Alternatively or in addition, the system monitors the power drawn by the handpiece, which is indicative of the cutting load on the tip, and automatically adjusts the power to the tip to compensate for increased loads on the tip. | 05-13-2010 |
20100130914 | Method Of Controlling A Surgical System Based On Irrigation Flow - A surgical system that is able to sense the onset of an occlusion or other surgical event as well as the instant an occlusion breaks. To help avoid overheating of the tip, the system determines a temperature of an eye using irrigation flow rate and reduces the power to the handpiece automatically if an overheating situation is predicted. Alternatively or in addition, the system monitors the power drawn by the handpiece, which is indicative of the cutting load on the tip, and automatically adjusts the power or stroke of the tip to compensate for increased loads on the tip. | 05-27-2010 |
20100160926 | Constant force intraocular lens injector - An intraocular lens injection device comprises a tubular housing with a passageway extending along its longitudinal axis and a plunger shaft disposed within and moveable along the passageway. The tubular housing and the plunger shaft have frictional engaging features that are configured to produce a varying plunging friction as the plunger is moved along its operating range, to offset changes in the plunging resistance that arise from injecting the IOL into the eye. The variable plunging friction may comprise one or more step changes in unloaded plunging friction, or a curved variation in plunging friction, or both, along at least a portion of the operating range of the plunger shaft. In some embodiments, a slot of varying width in the housing frictionally engages a tab extending transversely from the plunger shaft. In others, a contoured surface on the plunger shaft frictionally engages an orifice in the tubular housing. | 06-24-2010 |
20100179544 | Capsularhexis Device with Retractable Bipolar Electrodes - A capsularhexis device includes a loop-shaped cutting portion formed from flexible, superelastic metal strips separated by an insulating layer, and configured so that the cutting portion may be retracted into a tubular insertion cartridge for insertion into and removal from the eye, and extended from the insertion cartridge for the capsularhexis procedure. In its extended configuration, the cutting portion forms a cutting loop such that a free end of the cutting loop is proximate a connecting end of the cutting loop, with the connecting end joined to a shaft portion. The shaft portion extends into the insertion capsule, and is used to move the cutting portion in and out of the insertion cartridge. | 07-15-2010 |
20100268388 | Method of Controlling A Surgical System Based on Irrigation Flow - A surgical system that is able to sense the onset of an occlusion or other surgical event as well as the instant an occlusion breaks. To help avoid overheating of the tip, the system determines a temperature of an eye using irrigation flow rate and reduces the power to the handpiece automatically if an overheating situation is predicted. Alternatively or in addition, the system monitors the power drawn by the handpiece, which is indicative of the cutting load on the tip, and automatically adjusts the power or stroke of the tip to compensate for increased loads on the tip. | 10-21-2010 |
20100324476 | FLUIDICS CONTROL VIA WIRELESS TELEMETRY - In various embodiments, a pressure sensor may be configured to detect pressure information associated with pressure in an eye during an ophthalmic surgical procedure. The pressure information may be wirelessly communicated, through a transmitter coupled to the pressure sensor, to a receiver communicatively coupled to a surgical console. The receiver may provide the received pressure information to the surgical console to use in controlling pressure at a surgical site during the surgical procedure. For example, controlling the pressure may include maintaining a desired IOL pressure level within the surgical site at the eye. In some embodiments, the pressure sensor may include a strain gage coupled to a contact lens or a sleeve of an ocular surgical handpiece. Other pressure sensor configurations are also contemplated. | 12-23-2010 |
20100331764 | Controlling A Phacoemulsification Surgical System By Transitioning Between Pulse and Burst Modes - Methods of manipulating pulses of ultrasonic energy for use with an ophthalmic surgical device. | 12-30-2010 |
20110004149 | PHACOEMULSIFICATION HOOK TIP - In various embodiments, a phacoemulsification cutting tip with a straight shaft and an angled portion off of the straight shaft may include a hook on the angled portion to move an axis of rotation of the cutting tip closer to alignment with an extended centerline of the shaft. The cutting tip may be configured to torsionally rotate back and forth on an axis perpendicular to a centerline of the shaft (e.g., rotation around a y-axis). In some embodiments, lateral vibrations (e.g., side to side along an x-axis or z-axis perpendicular to the y-axis) that result from torsional rotation around the y-axis in a cutting tip without the hook may be reduced through use of the hook to balance the otherwise eccentrically weighted hook. | 01-06-2011 |
20110015563 | Method Of Controlling A Surgical System Based On A Rate Of Change Of An Operating Parameter - A surgical system that is able to sense the onset of an occlusion or other surgical event as well as when an occlusion breaks. To help avoid overheating of the tip, the system of the present invention predicts the temperature of the eye using irrigation flow rate and reduces the power to the handpiece automatically if an overheating situation is predicted. Alternatively or in addition, the system of the present invention monitors the power drawn by the handpiece, which is indicative of the cutting load on the tip, and automatically adjusts the power or stroke of the tip to compensate for increased loads on the tip. | 01-20-2011 |
20110137232 | Thermal Management Algorithm For Phacoemulsification System - A control system for managing power supplied to a phacoemulsification hand piece includes a power source that provides power to the hand piece and a controller that controls the power source. The controller calculates a thermal value based on irrigation fluid flow and a power level and decreases the power level in proportion to the calculated thermal value when the calculated thermal value exceeds a threshold thermal value. Irrigation fluid flow can be calculated from irrigation fluid pressure. | 06-09-2011 |
20110148304 | THERMOELECTRIC COOLING FOR INCREASED BRIGHTNESS IN A WHITE LIGHT L.E.D. ILLUMINATOR - A white light source includes a light-emitting diode configured to emit light of a characteristic wavelength. The white light source also includes at least one phosphor. The phosphor is configured to emit light in response to the light emitted by the light-emitting diode so that the white light source emits white light. The white light source further includes a thermally conductive base in thermal contact with the light-emitting diode and a thermo-electric cooler in thermal contact with the thermally conductive base. | 06-23-2011 |
20110149592 | LIGHT COLLECTOR FOR A WHITE LIGHT LED ILLUMINATOR - A white light source includes a light-emitting diode (LED) configured to emit white light in an angular distribution. The white light source further includes a light guide and a light collector configured to collect light across the angular distribution. The light collected by the light collector contributes to a total luminous flux of the white light coupled into the light guide. | 06-23-2011 |
20110230728 | STROBOSCOPIC OPHTHLAMIC ILLUMINATOR - An ophthalmic illuminator is provided that includes a pulse generator to provide amplified pulses and an amplifier to amplify the current pulses to produce amplified pulses. A light source within the ophthalmic illuminator is driven by the amplified pulses so as to stroboscopically illuminate a vibrating ophthalmic surgical tool within the interior of an eye. | 09-22-2011 |
20110232358 | Surgical Cassette - A surgical system and cassette, the cassette having an identification method that is specific to the cassette. Suitable methods include bar coding or Radio Frequency Identification (“RFID”). Cassette information that may be encoded include features such as lot number and performance characteristics, such as pressure sensor calibration data, flow and pressure data and any other performance characteristics of the cassette captured during testing of the cassette at manufacture. | 09-29-2011 |
20110238431 | Surgical Console Information Management - In various embodiments, completing a pre-surgery checklist may include receiving surgery related information from one or more sources, transferring the received information to a surgical console, presenting the transferred information to a console user as part of the pre-surgery check-list, and receiving indication of a verified information element provided for the pre-surgery check-list (e.g., confirmation from a surgeon that one or more elements on the pre-surgery checklist are correct/verified). In some embodiments, the method may further include verifying a surgical patient's identity prior to surgery. | 09-29-2011 |
20110247903 | Systems and Methods for Console Braking - In various embodiments, a braking system may include an actuator, a pawl gear coupled to the actuator, and a wheel gear plate. The braking system may further include a brake pad, an outer wheel coupled to the brake pad, and a spring washer plate configured to press the wheel gear plate against the brake pad such that the wheel gear plate is configured to inhibit rotation of the outer wheel through friction between the wheel gear plate and the brake pad when the pawl gear inhibits rotation of the wheel gear plate. In some embodiments, the braking system may further include a sensor and the actuator may be triggered to actuate the pawl gear in response to signals from the sensor. | 10-13-2011 |
20110257638 | DISPLAY FOR OPHTHALMIC SURGICAL CONSOLE WITH USER-SELECTABLE SECTORS - An ophthalmic surgical system includes a display device and a user interface. The display device generates a display on an image of a patient's eye comprising a plurality of non-overlapping display sectors. Each display sector displays one of a plurality of user-selectable surgical parameters. A user interface receives a user selection of one or more of the user-selectable surgical parameters to be displayed. | 10-20-2011 |
20110288470 | GRAPHICAL USER INTERFACE FOR PHACOEMULSIFICATION SURGICAL SYSTEM - A graphical user interface for use in phacoemulsification surgical systems that allows a user to select different pulse modes by touching portions of the display screen. The user interface includes first and second display elements. One display element includes a representation of the on-time of the pulses, and the other display element includes a representation of the off-time. The representations show how the on-time and off-time change relative to a position of a controller, such as a foot pedal. The representation show a constant time, or that a time increases or decreases as the foot pedal is pressed. To select a pulse mode, a user can scroll through different pulse representations by touching the screen at the display elements. The selected pulse mode can be continuous, pulse, burst, or a combination or derivation thereof. | 11-24-2011 |
20110301425 | Inductive Task Light For Surgical Console - A task light system for a surgical console includes a task light that can be held to a coupling location on a surgical console. The task light has an inductive coupling, a light source, and a goose neck connecting the light source to the inductive coupling. The coupling location is located on a face of the surgical console. The coupling location is configured to magnetically attract and hold the inductive coupling. The face of the surgical console where the coupling location is located is a continuous surface. | 12-08-2011 |
20120296264 | Method of Controlling a Surgical System Based on a Load on the Cutting Tip of a Handpiece - A surgical system that is able to sense the onset of an occlusion or other surgical event as well as the instant an occlusion breaks. To help avoid overheating of the tip, the system determines an approximate temperature of the eye using an irrigation flow rate and reduces the power to the handpiece automatically if an overheating situation is predicted. Alternatively or in addition, the system monitors the power drawn by the handpiece, which is indicative of the cutting load on the tip, and automatically adjusts the power or stroke of the tip to compensate for increased loads on the tip. | 11-22-2012 |
20120302941 | PHACOEMULSIFICATION SYSTEMS AND ASSOCIATED USER-INTERFACES AND METHODS - Phacoemulsification systems and associated user interfaces and methods for use in ophthalmic surgery are disclosed. In some embodiments, a touch screen display of an ophthalmic surgical console provides a graphical user interface that allows a user to both visualize and control various operating parameters of the surgical console and associated subsystems. The controllable operating parameters include, without limitation, aspiration flow rates, IV pole height, vacuum limit pressures, minimum ultrasound power, maximum ultrasound power, on-time, off-time, and/or other values associated with the operating parameters of the ophthalmic surgical console. | 11-29-2012 |
20130088414 | SURGICAL HEADS-UP DISPLAY THAT IS ADJUSTABLE IN A THREE-DIMENSIONAL FIELD OF VIEW - An ophthalmic surgical system includes a three-dimensional imaging device operable to display a three-dimensional image of a patient's eye. The ophthalmic surgical system further includes a display device including an image processor The display device is operable to generate a heads-up display of user-selectable surgical parameters on the three-dimensional image of the patient's eye. The heads-up display is adjustable in a three-dimensional field of view of the three-dimensional image. The system also includes a user interface operable to receive a user selection of one or more of the user-selectable surgical parameters to be displayed. | 04-11-2013 |
20130116670 | RETINAL LASER SURGERY - Various systems, processes, and computer program products may be used to perform retinal laser surgery. In particular implementations, systems, processes, and computer program products may include the ability to identify retina blood vessels from a retina image and determine a retina location needing therapy and not substantially intersecting a retina blood vessel. The systems, processes, and computer program products may also include the ability to generate a command to activate a retinal laser when a beam from the retinal laser will be aligned with the therapeutic location. | 05-09-2013 |
20130197531 | AUTOMATED INTRAOCULAR LENS INJECTOR DEVICE - An intraocular lens injection device comprises a tubular housing with a plunger longitudinally disposed within the tubular housing. An electric drive system longitudinally translates the plunger so that its tip engages an insertion cartridge to fold and displace an intraocular lens disposed within and to inject the folded lens into the lens capsule of an eye. A control circuit is configured to start translation of the plunger, responsive to user input, to detect at least one fault condition based on a counter-electromotive force produced by the electric motor, and to stop translation of the plunger assembly responsive to the detected fault condition, which may comprise excessive resistance to forward or rearward translation of the plunger or insufficient resistance to forward translation of the plunger. | 08-01-2013 |
20130197532 | AUTOMATED INTRAOCULAR LENS INJECTOR DEVICE - An intraocular lens injection device comprises a tubular housing with a plunger longitudinally disposed within the tubular housing. An electric drive system longitudinally translates the plunger so that its tip engages an insertion cartridge to fold and displace an intraocular lens disposed within and to inject the folded lens into the lens capsule of an eye. A control circuit is configured to start translation of the plunger, responsive to user input, to detect at least one fault condition based on a counter-electromotive force produced by the electric motor, and to stop translation of the plunger assembly responsive to the detected fault condition, which may comprise excessive resistance to forward or rearward translation of the plunger or insufficient resistance to forward translation of the plunger. | 08-01-2013 |
20130211435 | Method of Controlling a Surgical System Based on a Load on the Cutting Tip of a Handpiece - A surgical system that is able to sense the onset of an occlusion or other surgical event as well as the instant an occlusion breaks. To help avoid overheating of the tip, the system determines an approximate temperature of the eye using an irrigation flow rate and reduces the power to the handpiece automatically if an overheating situation is predicted. Alternatively or in addition, the system monitors the power drawn by the handpiece, which is indicative of the cutting load on the tip, and automatically adjusts the power to the tip to compensate for increased loads on the tip. | 08-15-2013 |
20130329298 | Orthogonal light beam splitting for microscopes - A system comprises first and second beamsplitter modules aligned along an alignment line. In certain embodiments, each beamsplitter module can split a beam traveling along a first optical path into a first split beam and a second split beam within a spectral range. Each beamsplitter module can transmit the first split beam along the first optical path and direct the second split beam along a second optical path substantially orthogonal to the first optical path and to the alignment line. In certain embodiments, each beamsplitter module can receive a first beam traveling along a first optical path and a second beam traveling along a second optical path that is substantially orthogonal to the first optical path and to the alignment line. Each beamsplitter module can combine the second beam with the first beam to yield a combined beam and transmit the combined beam along the first optical path. | 12-12-2013 |
20140052141 | PHACOEMULSIFICATION HOOK TIP - In various embodiments, a phacoemulsification cutting tip with a straight shaft and an angled portion off of the straight shaft may include a hook on the angled portion to move an axis of rotation of the cutting tip closer to alignment with an extended centerline of the shaft. The cutting tip may be configured to torsionally rotate back and forth on an axis perpendicular to a centerline of the shaft (e.g., rotation around a y-axis). In some embodiments, lateral vibrations (e.g., side to side along an x-axis or z-axis perpendicular to the y-axis) that result from torsional rotation around the y-axis in a cutting tip without the hook may be reduced through use of the hook to balance the otherwise eccentrically weighted hook. | 02-20-2014 |
20140163454 | VACUUM CONTROL METHOD FOR SURGICAL HAND PIECE - A surgical hand piece is described that maintains a vacuum pressure within the hand piece at a selected level. A check valve is provided substantially near an inlet of an integrated aspirating pump. The check valve opens to introduce fluid into the hand piece to maintain the vacuum pressure within the hand piece at or above the selected level so as to prevent or substantially reduce post-occlusion flow. | 06-12-2014 |
20140171957 | Control of Automated Intraocular Lens Injectors - A system for implanting an intraocular lens in the lens capsule of an eye to treat an ocular condition includes a housing, a plunger, and an electric motor configured to cause longitudinal translation of the plunger. A cartridge mount may accommodate a removable insertion cartridge so that an intraocular lens disposed in the insertion cartridge is displaced from the insertion cartridge as the plunger is translated. A controller electrically communicates with the electric motor and powers the electric motor to translate the plunger and displace the intraocular lens. The controller may be configured to detect motor current feedback in the control circuit and may be configured to compare the detected motor current feedback to a stored current profile and to stop translation of the plunger when the current level deviates from the stored current profile by a pre-stored amount. | 06-19-2014 |
20140296864 | TORIC LENSES ALIGNMENT USING PRE-OPERATIVE IMAGES - Proper selection and centering of an intraocular lens (IOL) is provided. An image of an eye, which may be captured during pre-operative tests and provided to a program operable to calculate the power and axis orientation of the IOL, is used to determine the location and orientation of the IOL. This produces an output or placement guide used to properly center and orient an IOL within the eye. | 10-02-2014 |
20150057774 | GRAPHICAL USER INTERFACE FOR SURGICAL CONSOLE - A surgical system includes a control device, a touch screen display, and a GUI displayed on the touch screen display. A parameter icon has a parameter area, a first set point, a second set point, a parameter line extending from the first set point to the second set point, and a value orb located on the parameter line. The location of the value orb on the parameter line corresponds to a control position of the control device. A parameter value area is located under the parameter line and extends from the first set point to the value orb. A numerical parameter value is located in the parameter area. The parameter line represents a range of parameter values from the first set point to the second set point, and when the control device is a foot pedal, a range of travel of the foot pedal. | 02-26-2015 |
20150077705 | Integrated OCT-Refractometer System for Ocular Biometry - A Slit-lamp-or-Microscope-Integrated-OCT-Refractometer system includes an eye-visualization system, configured to provide a visual image of an imaged region in an eye; an Optical Coherence Tomographic (OCT) imaging system, configured to generate an OCT image of the imaged region; a refractometer, configured to generate a refractive mapping of the imaged region; and an analyzer, configured to determine refractive characteristics of the eye based on the OCT image and the refractive mapping, wherein the refractometer and the OCT imaging system are integrated into the eye visualization system. | 03-19-2015 |