Alcon Research, Ltd.

Alcon, Inc.

Novartis Ag

Guangyao Jia

Glenn R Sussman

Glenn Robert Sussman

Ann Yadlowsky

Ahmad Salehi

Brian William McDonell

Satish Yalamanchili

John Morgan Bourne

Mikhail A Ovchinnikov

Sean Christopher Madden

Mauricio Jochinsen

Ziad R Ghannoum

Omeed Paydar

David Dyk

Daniel J Kao

Yen-Cheng Chen

An ultrasonic cutting tip has a hollow shaft with a proximal and distal end. The proximal end is configured to be attached to an ultrasonic hand piece, and the distal end has a smooth continuous surface. An opening is located near the distal end of the hollow shaft. The opening is configured to cut vitreous when the cutting tip is vibrated ultrasonically in a torsional manner.

Ultrasonic vitreous cutting tip

The present disclosure provides a capsulotomy device having a unique insertion sleeve configuration comprising beveling and two notches at the distal end of the insertion sleeve. The unique configuration assures that the motion the capsulotomy loop comprising the heating element goes through during deployment from and retraction into the insertion sleeve is minimized and predictable.

Enhancing performance of a capsulotomy device

A capsulorhexis apparatus includes a capsulorhexis probe configured for insertion into an eye through an incision and a pulse generator configured to deliver at least one radio-frequency (RF) pulse to the capsulorhexis probe. The delivered RF pulse has a pre-determined attenuation profile such that the power level of the delivered RF pulse is substantially attenuated over the RF pulse's duration. In some embodiments, the pulse generator is configured to deliver a series of two or more RF pulses to the eye, such that the energy of each of the second and subsequent pulses of the series is substantially attenuated relative to the energy of the immediately preceding pulse.

Attenuated RF power for automated capsulorhexis

Various embodiments of a capsule polishing device include a resistive-heating element including an electrically resistive, superelastic wire forming a loop between first and second ends of the superelastic wire. The first and second ends of the loop may at least partially extend from a planar face defined by the loop, to an insulating portion. In some embodiments, the capsule polishing device may be configured to perform active capsule polishing through a combination of hyperthermia of LECs and mechanical abrasion of the capsule surface. In some embodiments, at least a side and end portion of the loop of the capsule polishing device may be shaped to follow a contour of the capsule bag. The loop may be heated to approximately 40 to 47 degrees Celsius to destroy LECs (other temperatures are also possible). In some embodiments, the loop may include a roughened surface to increase mechanical abrasion.

Capsule polishing device and method for capsule polishing

A capsularhexis device comprises a resistive-heating element formed from an electrically resistive, superelastic wire formed into a loop. A bare surface of this loop is applied to the anterior capsule and electrically heated to define a rhexis boundary, such that a smooth circular or oval capsule portion may be removed. In some embodiments, the superelastic wire is formed to include a loop, so that first and second ends of the wire are adjacent to one another and extend away from the loop to form a lead section. An electrically insulating material may completely or partly surround the first and second ends of the wire so that the first and second ends of the superelastic wire are electrically separated. A handle engages at least a portion of the lead section so that the loop-shaped heating element may be moved in and out of the anterior chamber.

Capsularhexis device with flexible heating element

Various embodiments of a capsulotomy repair device include a resistive-heating element comprising an electrically resistive, superelastic wire forming a loop between first and second ends of the superelastic wire. The first and second ends of the loop may at least partially extend at an angle from a planar face defined by the loop, to an insulating portion, to form a transitional neck between the loop and the insulating portion. The capsulotomy repair device may be positioned in the eye relative to a capsularhexis perimeter to overlap tears in the capsularhexis perimeter to remove the tears by forming an adjusted capsularhexis perimeter by burning around the tear.

Capsulotomy repair device and method for capsulotomy repair

A hand piece for a surgical instrument is provided. The handpiece has an inlet, a chamber (with upstream and downstream portions), a flow control member, a pulse engine, and an outlet. The inlet communicates with the upstream portion of the chamber. The downstream portion of the chamber communicates with the engine. The engine communicates with the outlet. In a closed position of the member, flow from the inlet moves the member to the open position thereby allowing flow through the flow path. In the open position, pulses from the engine move the member to the closed position before pulses from the pulse engine can flow through the flow path, thereby preventing flow through the flow path.

Spring-less check valve for a handpiece

A capsularhexis electrode device and corresponding insertion tool are disclosed. A flexible capsulorhexis electrode device comprises an elastomeric ring, first and second electrically conductive traces disposed at a first face of the elastomeric ring and extending concentrically around the elastomeric ring, and first and second electrically conductive connectors. The first and second electrically conductive connectors are electrically connected to the first and second traces, respectively, and are disposed at opposing points across the elastomeric ring from one another. An insertion tool includes first and second stretcher bars with connectors for mating to the electrode device. One of the stretcher bars translates relative to the other to elongate the flexible electrode device for insertion into the anterior chamber of the eye through a small incision.

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Irvine, CA, United States of America

Guangyao Jia