Insight Instruments, Inc.

Other

K Peter Luloh

Michael Annen

Tarek Hassan

James Dodsworth

Frank H J Koch

A contact lens assembly has a central lens and a circumscribing flange, the lens having an eye contact surface shaped generally to a radius of curvature of a cornea of an eye. The flange comprises a sterile sponge-like liquid absorbent flexible material having a central aperture for fitting snugly about an outer circumference of the lens and extending radially outward therefrom. The flange may include an inner attachment ring for attachment to the outer circumference of the central contact lens.

Contact lens for vitreoretinal surgery

A probe for a vitrectomy tool is provided having a vitreous cutter tube having a blunt tip at a distal end and adapted to be coupled at a proximal end to a handpiece of a vitrectomy tool; a retractable outer trocar tube surrounding the vitreous cutter tube having an open distal end with a sharpened edge; and a retraction mechanism coupled to a proximal end of the outer trocar for selectively extending and retracting the outer trocar tube between a first extended position wherein the sharpened edge of the outer trocar is extended beyond the blunt tip of the vitreous cutter tube to facilitate insertion into the eye and a second retracted position wherein the sharpened edge of the outer trocar is retracted behind the blunt tip of the vitreous cutter tube to facilitate safe operation of the probe.

Retractable tip for vitrectomy tool

A probe for a vitrectomy tool is provided having a vitreous cutter tube having a blunt tip at a distal end and adapted to be coupled at a proximal end to a handpiece of a vitrectomy tool; a retractable outer trocar tube surrounding the vitreous cutter tube having an open distal end with a sharpened edge; and a retraction mechanism coupled to a proximal end of the outer trocar for selectively extending and retracting the outer trocar tube between a first extended position wherein the sharpened edge of the outer trocar is extended beyond the blunt tip of the vitreous cutter tube to facilitate insertion into the eye and a second retracted position wherein the sharpened edge of the outer trocar is retracted behind the blunt tip of the vitreous cutter tube to facilitate safe operation of the probe. A vitrectomy tool for removing material from an eye of a patient is provided having a housing having a proximal end and a distal end and a probe coupled to the proximal end of the housing.

A unitary mechanical injector-vitrector hand tool for use in extracting vitreous material from an eye and injecting another fluid into the eye includes a housing body having a proximal end, a distal end and a variable volume cavity in the housing body for establishing a negative pressure or suction. A needle having a sharpened point and a central bore is connected to the proximal end of the housing body. An aperture is formed in a sidewall of the needle near the sharpened end. An inner hollow reciprocal cutter is fitted in the central bore of the needle and has a cutting edge adapted for travel across the aperture. A first manually actuatable lever is pivotably mounted to the housing body and coupled in driving relationship with the reciprocal cutter. A valve assembly is operatively positioned between the needle and the variable volume cavity and arranged to open to apply suction to the needle central bore as the reciprocal cutter travels across the aperture so as to withdraw vitreous material falling into the hollow cutter. A pressurized source of fluid is coupled by a conduit through the central bore of the needle and cutter and selectively actuated to replace the removed vitreous material with other material such as an antibiotic.

Tool for extracting vitreous samples from an eye

A fiber optic endoilluminator surgical instrument for projecting illuminating light into an interior of an eyeball includes a finger grip member and an elongated passageway through the finger grip member. A hollow rigid needle, adapted to penetrate into the interior of the eyeball, slidably extends from one end of the grip member. An optical fiber extends through the needle and the grip member, and a lever is connected to the needle for allowing the needle to be moved to and fro with respect to the grip member for varying the amount of optical fiber exposed at an illumination end portion of the fiber. By covering the illumination end portion with the needle, a spot of illumination is provided for viewing a comparatively smaller portion of the interior of the eyeball. By uncovering the illumination end portion, a flood of illumination is provided for viewing a comparatively larger portion of the interior of the eyeball.

Endoilluminator

An endoscope for eye surgery incorporates a handle having a camera and an electric motor driven lens assembly for enabling a user to focus the camera during surgery without manually adjusting the focus. The endoscope includes a probe attached by a rotatable bayonet type connector with a simple pivoting lever to release the probe from the handle. The motor drive system incorporates spring biasing to compensate for overruns of a drive nut on a lead screw when the user attempts to exceed the focal range of the lens assembly.

Endoscope system and method of use

A wide-angle viewing attachment for an ocular microscope includes a first lens attached to the microscope and a second lens independently mountable with respect to the microscope. The second lens is positionable proximal to an eye of a surgical patient and is maintained in the proximal position by an attachment system including a support member coupled in a fixed position to an operating table on which the patient is reclined. A first support rod extends vertically from the support member and a clamp member is adjustably mounted on the support rod. A horizontally extending second support rod is adjustably coupled to the clamp member and terminates at one end in a generally flat plate. A lens carrier includes a spring clamp for holding the second lens and a support arm extending generally horizontally with respect to the first support rod. The carrier terminates in a magnet assembly which holds the lens carrier to the flat plate.

Device for non-contact wide-angle viewing of fundus during vitrectomy

An illumination cannula system for vitreous surgery. The cannula system has a plurality of illuminated cannula ports, each including a multiplicity of optical fibers annularly arranged about a central conduit channel provided with a double seal onto which a sleeve connector or boot of an infusion line adapter or sealing plug can be attached. The adapter includes an extended tube for discharging fluid beyond the terminations of the fibers. The double seal provides a convenient, positive snap-action sealing connection. Identical configurations of the cannula ports enable post-placement selection and interchange of infusion and instrumentation ports.

Growing community of inventors

Stuart, FL, United States of America

K Peter Luloh