Johnson & Johnson Surgical Vision, Inc.

An apparatus for mechanically coupling a motor to a rotor includes an outer ring including an inner surface shaped to define multiple recesses, an inner ring disposed within the outer ring and shaped to define multiple compartments having respective outer openings, which face the outer ring, and respective inner openings opposite the outer openings, and multiple gripping elements disposed within the compartments, respectively. The inner ring is configured to receive the rotor while the compartments are aligned with the of recesses, by virtue of the gripping elements sitting at least partially within the recesses. The outer ring is configured to couple with a shaft coupled with the motor such that rotation of the shaft by the motor causes the compartments to become misaligned with the recesses, thereby causing the outer ring to push the gripping elements, through the outer openings, against the rotor, through the inner openings.

A surgical system and a respective method are described. The surgical system comprises a handpiece comprising a distal end operable for performing a surgical operation on a patient's eye, a pumping module comprising one or more pumps configured for transmitting and/or evacuating fluids via the handpiece, a pressure sensor assembly comprising one or more pressure sensors positioned at one or more selected positions along a path for fluid flow between the pumping module and the distal end of the handpiece, and configured to provide pressure data indicative of fluid pressure along the path, and a controller comprising one or more processors. The controller is configured and operable to receive the pressure data and operation data indicative of a rotation rate of the one or more pumps, and to process the received pressure data and operation data to determine the operation status of the pressure sensors.

A surgical system includes a replaceable surgical cassette that is configured to be received by a surgical console, the surgical cassette permitting fluid flow through the cassette, the surgical system controlling the flow of fluid through the cassette via one or more flexible valves actuated by one or more actuation plungers located on the surgical console. The one or more flexible valves of the surgical cassette and the one or more actuation plungers of the surgical console include a positioning feature configured to assist with positioning the one or more actuation plungers to apply uniform and symmetric pressure to the one or more valves during actuation.

Apparatus for determining a needle size including a phacoemulsification probe having a distal tip. The probe has an aspiration channel that transfers aspiration fluid from the distal tip and that has a first pressure sensor coupled with the channel, and an irrigation channel that transfers irrigation fluid to the distal tip and that has a second pressure sensor coupled with the channel. A needle-sleeve combination, consisting of a sleeve coaxially surrounding the needle, is coupled with the probe distal tip. A processor acquires from the first pressure sensor a first pressure profile of the aspiration fluid passing the first pressure sensor and acquires from the second pressure sensor a second pressure profile of the irrigation fluid passing the second pressure sensor. The processor formulates a difference between the two profiles, and determines the size of the needle of the needle-sleeve combination in response to the difference.

A system, including: a pump, a handpiece including a needle and a sleeve, an irrigation channel forming a fluid path within the handpiece; first and second sensors configured to sense pressure at separate locations along the fluid path; and circuitry configured to: receive first and second pressure measurement signals from the first and second sensors, respectively; identify one or more pressure fluctuations in the first signal and/or the second signal; compare the first signal and the second signal to determine one or more frequency dispersion indicators; characterize the one or more pressure fluctuations based on the one or more frequency dispersion indicators as being associated with an intraocular pressure (IOP) change or a system component; and for a pressure fluctuation associated with the IOP change: determine an estimate of IOP from the first signal; and control the pump based on the estimate of IOP.

A surgical cassette for use with a phacoemulsification system having a front housing; and a fluid manifold having an at least partially unibody construction and being removably coupled to at least the front housing. The fluid manifold having molded fluid channels. A surgical system, having a console, a handpiece, and a cassette that couples the handpiece with the console, wherein the cassette has a front housing, a fluid manifold and a drain bag assembly; wherein the fluid manifold has a unibody construction and is removably coupled to at least the front housing and drain bag assembly.

A system and method for detecting and/or capturing a cassette is disclosed. The cassette capture mechanism may be used with a surgical console of a surgical system, wherein the system has a cassette receiving area having at least two alignment sensors and a plurality of capture plungers; and at least two capture hooks which may engage with a cassette, wherein at least one of the at least two alignment sensors produces a signal indicative of the presence of a cassette.

A phacoemulsification system and a method are described. The system including: a handpiece having a needle and a sleeve at a distal end and an orientation detection unit; an irrigation module configured to supply irrigation fluid into the eye; an aspiration module configured for aspiring eye fluid; a priming cover for fitting over the distal end of the handpiece during a priming process; external pressure sensors coupled with the priming cover; one or more sensors for monitoring at irrigation and spiration pressure; and a processor configured to operate in a priming process. The priming process includes operating the irrigation module to fill the irrigation channel with fluid and remove air bubbles. The one or more processors are configured for obtaining calibration pressure data from the external pressure sensors and orientation data from the orientation detection unit and for calibrating the sensors of the system in accordance with orientation data.

A system and method for use in eye surgery. The system includes at least one light source, a detection unit, and a detection circuit. The at least one light source is configured and operable to emit one or more illumination beams directed at a region of a corneal surface of a patient's eye. The detection unit includes an arrangement of light detectors positioned for collecting a reflected beam reflected from the region of the corneal surface of the patient's eye. The detection circuit is configured for collecting and analyzing a detection signal from the detection unit, and for detecting variations of the reflected beam pattern over time indicative of surface curvature changes of the corneal surface region. In response to detecting surface curvature change exceeding a predefined threshold, the detection circuit generate a response signal triggering operation of an anti-vacuum surge (AVS) mechanism.

An apparatus includes a proximal shaft configured to mechanically couple to a motor, a first universal joint, a middle shaft coupled to the proximal shaft via the first universal joint, a housing having a bore, a second universal joint within the bore, a distal shaft coupled to the middle shaft via the second universal joint, and a connector disposed over the distal shaft. The bore limits a downward tilt of the distal shaft such that, as a rotor approaches the distal shaft, the distal shaft becomes axially aligned with the rotor by virtue of the proximal end of the rotor entering the connector or vice versa. A spring connected proximally to the connector and distally to the second universal joint is configured to decompress, thereby reversibly coupling the connector to the proximal end of the rotor, upon the motor rotationally aligning the connector with the proximal end of the rotor.