Alcon, Inc.

Novartis Ag

Alcon Research, Ltd.

James Yong Chon

Mikhail Boukhny

Ahmad Salehi

Ann Yadlowsky

Bill Chen

Grace Chuang Liao

Ashish Sinha

Satish Yalamanchili

Rudolph F Zacher

Joel Cicchella

Alexander N Artsyukhovich

Gary P Sorensen

Stephen J Van Noy

John R Underwood

David Anthony Downer

Paul R Hallen

Daniel J Wilson

Russell L Finlay

Robert Jeffrey Heng

Robert Stephen Maurer, Jr

Ramon Carsola Dimalanta, Jr

Hsin S Chin

Kristine Velasco

Steve Van Noy

Stephen J Vannoy

Raphael Gordon

Niels Alexander Abt

Mark Harrison Farley

Bruno Dacquay

Richard James Mackool

Joshua Dean Anderson

Dan V Teodorescu

Kurt D Leukanech

Partha Chandrakant

Nathaniel Reyes

Robert S Maurer

Jesus R Gonzales, Jr

Mark W Vojtasek

John Zhongyu Yan

Ravi Durvasula

Hugh B Canelli

Andrea Kim

Ho Man Michael Fong

Hanspeter Naef

Robert Stephen Maurer

Ramon Dimalanta

Alexander Abt Niels

Joshua Anderson

Jr Robert Stephen Maurer

Michael Boukhny

Certain embodiments herein disclose a cannula assembly. The cannula assembly comprises a cannula, having a proximal end and a distal end. The cannula comprises a head at the proximal end, the head having one or more wings. The cannula also comprises a hollow rod extending from the head to the distal end. The cannula assembly also comprises a hub couplable to the head and having a housing with an inner wall. The inner wall comprises an undercut, and one or more distal ends of the corresponding one or more wings are configured to fit into the undercut and couple the hub to the head upon insertion of the head into the hub.

Cannula assembly

An ultrasonic handpiece includes a piezoelectric element assembly. Control signals drive the piezoelectric element assembly simultaneously in a first mode of oscillation and a second mode of oscillation. Feedback of a resulting oscillation of the piezoelectric element assembly in the first mode and the second mode is generated. Based on the feedback, the frequency of each of the first mode and second mode is independently adjusted, as needed, so that the resulting oscillation of each of the first mode and the second mode is each approximately at its respective resonant frequency.

Bi-modal ultrasonic handpiece system

Embodiments disclosed herein provide devices, systems, and methods for instrument exchanges during ophthalmic surgery. More particularly, the present disclosure relates to valved cannula assemblies and methods of use thereof. A valved cannula assembly includes a cannula having a head at a proximal end of the cannula and a hollow rod extending from the head to a distal end of the cannula. The valved cannula assembly includes a valved hub coupled to the head and including a septum having two or more curved flaps configured to provide an opening for an instrument.

Valved cannula assembly

A surgical instrument includes a base unit, a probe, a stiffener, and an actuation mechanism. The stiffener is formed of a hollow tubular member substantially surrounding at least a portion of a length of the probe. The actuation mechanism is configured to actuate the stiffener along the length of the probe and adjust the stiffness of the probe, thus providing a user better control of the surgical instrument. The actuation mechanism includes a stiffener biasing device configured to apply a first biasing force against the stiffener in the distal direction and, in some embodiments, a control member configured to lock the stiffener in a position along the length of the probe.

Adjustable stiffener for surgical instruments

Cannula protector with scleral markers

The present disclosure generally relates to microsurgical instruments having variable stiffness such as microsurgical instruments having variable stiffness for ophthalmic surgical procedures. In one embodiment, a surgical instrument includes a probe and a stiffener assembly. The stiffener assembly further includes a stiffener formed of a hollow tubular member substantially surrounding at least a portion of a length of the probe. Actuation of the stiffener along the length of the probe adjusts the stiffness of the probe, thus providing a user better control of the surgical instrument.

A trocar-cannula insertion tool for ophthalmic procedures may include a cap with a body having a proximal end and a distal end opposite the proximal end. A marking element extends in a distal direction from the distal end of the body and includes at least one marking tip for forming one or more indentations on a patient's eye during an ophthalmic procedure. A manipulation element extends from the body in a direction different from the marking element and includes at least one manipulation tip for gripping a tissue of the patient's eye during the ophthalmic procedure. The cap may further include at least one window for exposing a photoluminescent cannula of the trocar-cannula insertion tool to light, enabling the cannula to absorb photons prior to insertion thereof.

Trocar-cannula assembly cap

Embodiments disclosed herein relate to an infusion cannula for infusion/venting of fluids to/from the eye to control intraocular pressure. The infusion cannula includes a tubular body with a tubular inlet located at a proximal end of the tubular body and a tubular outlet located at a distal end of the tubular body. The tubular outlet is aligned with a first longitudinal axis and configured to extend through a septum of a valved cannula hub. The infusion cannula includes a retention piece extending from or coupled to the tubular body. The retention piece has an annular body surrounding the tubular body at the distal end of the tubular body and configured to be coupled to the valved cannula hub. An inner surface of the annular body has a profile configured to form a snap fit with an overhang formed along an outer surface of the valved cannula hub.

Infusion cannula

Devices and methods are disclosed for improved irrigation sleeves for ophthalmic instruments to prevent or reduce the likelihood of the irrigation sleeve twisting and/or buckling upon inserting the irrigation sleeve into the eye. In some embodiments, an irrigation sleeve comprises a side opening for irrigation having an elongated shape, wherein the elongated shape is longer in a direction parallel to the longitudinal axis of the distal tube of the irrigation sleeve than in a direction around a circumference of the distal tube of the irrigation sleeve. In some embodiments, an irrigation sleeve comprises at least one rib on an internal surface of the distal end of the irrigation sleeve. In some embodiments, the irrigation sleeve has been subjected to one or more manufacturing steps adapted to stiffen the irrigation sleeve, such as being coated with a stiffening coating or being treated by being exposed to gamma irradiation.

Irrigation sleeve for ophthalmic procedures

A vitrectomy probe with a light emitting, visibly discrete traceable probe cap. The light emitting, visibly discrete character of the probe cap may aid a surgeon in tracing the end of a needle of the vitrectomy during a vitrectomy procedure. The probe cap may be of a biocompatible polymer accommodating phosphorescent pigment or of another suitable light source.

Visually traceable vitrectomy probe cap

Provided herein are cannula devices that are self-illuminating to facilitate visualization of the cannula devices during a surgical procedure. The self-illuminating feature may be provided by phosphors incorporated into the cannula device, for example in the hub or sealing element of the cannula device. The cannula device may emit light of a specific color selected to correspond to a size of the cannula device.

Self-illuminating microsurgical cannula device

A phacoemulsification needle comprises a hollow shaft with an interior surface, an exterior surface, and a distal end terminating in a distal edge. The shaft has a central bore extending there through. The central bore is defined by the interior surface of the hollow shaft. A first over mold is located on the exterior surface and distal edge of the hollow shaft. The first over mold covers at least a portion of a periphery of the exterior surface of the hollow shaft, the distal edge, and terminates at the central bore.

Hybrid phacoemulsification needle

A method and system provide a surgical handpiece including a housing and a horn. The housing has a retrograde channel and a chamber a therein. The retrograde channel connects an irrigation line and the chamber. The horn is held within the housing such that a portion of the horn resides within the chamber.

Surgical handpiece with reverse flow priming

A hydraulically-driven Intra-Ocular Lens (IOL) insertion tool includes a body, a chamber within the body, a first fluid port providing fluid communication into the chamber, a piston positioned within the chamber and arranged to move within the chamber in response to the introduction or removal of fluid from the chamber, and an elongated member. The elongated member includes a distal end comprising an intra-ocular lens interface and a proximal end connected to the piston such that movement of the piston within the chamber causes corresponding movement of the elongated member.

Hydraulic injector and methods for intra-ocular lens insertion

An intraocular lens delivery system has an injector body, a plunger, a nozzle portion, and a heater. The plunger is slidably movable within the injector body. The nozzle portion is located on a distal end of the injector body and has a hollow interior adapted for receiving the intraocular lens. The heater is integrated with the intraocular lens delivery system and is adapted to heat the intraocular lens.

Intraocular lens delivery system with temperature control

Growing community of inventors

Irvine, CA, United States of America

James Yong Chon