Patent application number | Description | Published |
20130208246 | 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. | 08-15-2013 |
20140012375 | ACCOMMODATING INTRAOCULAR LENS WITH OUTER SUPPORT STRUCTURE - An intraocular lens for insertion into the capsular bag of an eye contains an optic, an outer periphery, and an outer support structure. 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 and a weakened region 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. | 01-09-2014 |
20140018724 | VACUUM SENSE CONTROL FOR PHACO PULSE SHAPING - 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. | 01-16-2014 |
20140031832 | PLUNGERS FOR INTRAOCULAR LENS INJECTORS - An intraocular lens (IOL) injector for delivering an IOL into an eye of a patient includes an IOL load chamber and connected delivery tube, and a push rod for urging the IOL through the delivery tube and out of a distal tip thereof. The push rod is guided and biased against one side of the injector load chamber. The injector may include an inflatable pusher for urging the IOL through the delivery tube and out of a distal tip thereof. The inflatable pusher has a proximal end that may be open to an internal cavity of the injector, wherein a plunger movable in the injector cavity forces fluid such as air or saline into the pusher. A distal end of the pusher may be forked to capture a trailing end of the IOL, or may have a bulbous configuration to ensure the pusher does not pass the IOL. | 01-30-2014 |
20140088525 | HOLDING TANK DEVICES, SYSTEMS, AND METHODS FOR SURGICAL FLUIDICS CASSETTE - The present invention is 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 relying 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. Other aspects of the invention may provide devices, systems, and methods for producing different types of fluidics cassette using a single cassette body type. | 03-27-2014 |
20140133998 | CONTROLLING OF MULTIPLE PUMPS - An apparatus for controlling vacuum pressure is provided. The apparatus includes a multiple axis controller, such as a dual axis footpedal, and a processing apparatus, such as an instrument host running software, configured to receive multiple axis data from the multiple axis controller. The apparatus also includes a first pump configured to provide nonzero fluid pressure at a first nonzero fluid pressure level based on a first axis state of the multiple axis controller and a second pump configured to provide nonzero fluid pressure at a second nonzero fluid pressure level based on a second axis state of the multiple axis controller. The processing apparatus causes switching between the first pump and the second pump based on the first axis state and the second axis state of the multiple axis controller. | 05-15-2014 |
20140142493 | APPLICATION OF VACUUM AS A METHOD AND MECHANISM FOR CONTROLLING EYE CHAMBER STABILITY - A phacoemulsification system for operating a surgical handpiece having a handpiece; an irrigation fluid source for supplying irrigation fluid to the eye; an aspiration source coupled to the handpiece in order to aspirate the irrigation fluid from the eye through the handpiece; and a controller for controlling a vacuum in the handpiece, the controller comprising: a sensor for sensing the vacuum in the handpiece; an occlusion parameter, the occlusion parameter being a vacuum level corresponding to an occlusion of the handpiece or a flow rate corresponding to an occlusion of the handpiece; a maximum allowable vacuum level in the handpiece, the maximum allowable vacuum level having at least a first predetermined level; and a trigger value that is set based in part on the occlusion parameter. | 05-22-2014 |
20140171993 | VITRECTOMY SURGICAL APPARATUS WITH REGULATING OF MATERIAL PROCESSED - A vitrectomy apparatus is provided, including a pressure source, a cut valve connected to the pressure source, the cut valve configured to be turned on and off to provide pressure to selectively extend and retract a vitrectomy cutting device, a sensor configured to sense pressure provided from the cut valve, and a controller configured to control operation of the cut valve based on pressure sensed by the sensor. The controller is configured to monitor an amount of dwell time the vitrectomy cutting device remains open and monitor aspiration rate, and control a rate of material processed by the vitrectomy cutting device based on amount of dwell time and aspiration rate. | 06-19-2014 |
20140171994 | VITRECTOMY SURGICAL APPARATUS - A vitrectomy apparatus is provided, including a pressure source, a cut valve connected to the pressure source, the cut valve configured to be turned on and off to provide pressure to selectively extend and retract a vitrectomy cutting device, a sensor configured to sense pressure provided from the cut valve, and a controller configured to control operation of the cut valve based on pressure sensed by the sensor. | 06-19-2014 |
20140276638 | SYSTEM AND METHOD FOR PROVIDING PRESSURIZED INFUSION - The present invention relates generally to providing pressurized infusion of liquids and, more particularly, is directed to providing a stable and pressurized flow of irrigation fluid to the eye during surgery. | 09-18-2014 |
20140277439 | SURFACE TREATMENT OF SILICONE MATERIALS - Disclosed herein are surface treatments for soft silicone gel materials such as silicone intraocular lenses. | 09-18-2014 |
20140278473 | SYSTEM AND METHOD FOR PROVIDING A GENERICIZED MEDICAL DEVICE ARCHITECTURE - Systems, methods, and computer readable storage medium for providing a genericized medical device architecture common to a plurality of medical devices are disclosed. The architecture may comprise at least one diagnostics module associated with at least one of the plurality of medical devices, wherein the at least one diagnostics module is configured to monitor an operational status of the at least one medical device. At least one hardware abstraction layer may be associated with at least one of the plurality of medical devices, and may be configured to provide abstracted access to hardware of the at least one medical device. | 09-18-2014 |