Becton Dickinson and Company Limited

Edwin G Lee

Dana Michael Cote

Aaron Szymanski

Robert W Pierce

Lamar R Chandler

Joseph Francis Keenan

Thomas Mc Linden

Thomas V McLinden

Michael Joseph Murphy

A corneal incision device of the present invention includes a surgical blade and a frame having an inner surface with a configuration that is generally in the shape of a ring-like segment of a hollow sphere. The frame has an aperture therein to allow the surgical blade to be inserted through the frame beyond the inner surface. The aperture is sized and shaped to allow movement of the surgical blade in one axis. The device may have a protuberance affixed to the inner surface of the frame adjacent to the aperture disposed to distort a surface of a patient's eye when the device is selectively positioned on the eye by a practitioner. The device has provisions for holding, advancing and withdrawing the surgical blade through the aperture, disposed on the frame. The device is releasably retained on the patient's eye by fixation elements disposed on the inner surface of the frame. There is a handle affixed to the frame to facilitate the practitioner's manipulation of device.

Corneal incision device

A capsulorhexis forceps is described which includes a unique removable hub and handle. The hub allows the use of the forceps as a cystotome in addition to a forceps. The hub design comprises a coaxial wire inside a cannula which provides minimal trauma when the forceps is opened and closed for repositioning during the capsulotromy. The hub is also replaceable and disposable after use. This flexibility in hub replacement allows the surgeon to use the forceps either in the initial open or closed position. The handle also may provide a constant grip force to the corneal flap independent of manual actuation force of the forceps.

Capsulorhexis forceps and method of use

Capsulorhexis forceps with bellows

Capsulorhexis forceps

Capsulorhexis forceps with bulb

Capsulorhexis forceps with tab

A corneal marker and a method of using a corneal marker are disclosed. The corneal marker includes a handle having a head coupled thereto. The inferior surface of the head includes a set of protuberances which form marking surfaces adapted to simultaneously engage corneal tissue. The marking surfaces form opposing sets of marks which allow a surgeon to form an incision of precise length and width. An alignment line on the superior and/or front surface of the marker facilitates the positioning thereof. A method of performing clear corneal surgery following the application of markings to the cornea is also provided.

Marker for corneal incision

A corneal incision device includes a surgical blade and a frame having an inner surface with a configuration that is generally in the shape of a ring-like segment of a hollow sphere. The frame has an aperture therein to allow the surgical blade to be inserted through the frame beyond the inner surface. The aperture is sized and shaped to allow movement of the surgical blade in one axis. The device may have a protuberance affixed to the inner surface of the frame adjacent to the aperture disposed to distort a surface of a patient's eye when the device is selectively positioned on the eye by a practitioner. The device has provisions for holding, advancing and withdrawing the surgical blade through the aperture, disposed on the frame. The device is releasably retained on the patient's eye by fixation elements disposed on the inner surface of the frame. There is a handle affixed to the frame to facilitate the practitioner's manipulation of device.

The multi-plane corneal incision form of this invention includes a frame member in the shape of a segment of a hollow sphere that fits over a patient's cornea. The inner surface of the frame member includes a protuberance that distorts the cornea when the frame member is placed against the patient's cornea. The frame member also includes an aperture adjacent to the protuberance to allow a surgical blade to pass therethrough. By carefully configuring the protuberance and aligning the aperture, a physician can insert a surgical blade into the aperture and through the distorted cornea in a planar fashion that results in a multi-plane incision in the cornea once the frame member is removed from contact with the patient's cornea.

Multi-plane corneal incision form

The reusable device handle of this invention includes a nosepiece, a body, an activation rod, an ejector rod and a biasing mechanism. The nosepiece and the body are generally hollow. The nosepiece is connected to the body. The activation rod and the ejector rod are connected together and are disposed in the nosepiece and the body. The biasing mechanism is disposed in the body and biases the activation rod toward the proximal end of the body so that the proximal portion of the activation rod extends proximally from the proximal end of the body. The distal end of the nosepiece is designed to accept a cartridge therein that holds a blade or some other tool. The cartridge can be removably connected to the nosepiece. By pressing the proximal end of the activation rod, the distal end of the ejector rod contacts the cartridge and ejects the cartridge from the nosepiece.

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Burlington, MA, United States of America

Edwin G Lee