Carl Zeiss Meditec Cataract Technology Inc.

Scott Chamness

Luke W Clauson

Michael P Schaller

Brendan Reese

Brett Carter

Matthew B Newell

Michael A Raye

Nicholas G Lewis

Thomas M Rector

Jens Hoekendijk

Michael Paul Schaller

Luke William Clauson

A device for extracting lens material from an eye including a distal, disposable portion releaseably coupleable to a proximal, reusable portion. The disposable portion includes a cutting tube having a distal cutting tip and an inner lumen having a distal end. The disposable portion includes an aspiration pump fluidly coupled to the inner lumen of the cutting tube and a cutting tube drive mechanism configured to oscillate the cutting tube. The reusable portion includes an aspiration pump motor configured to drive the aspiration pump and a coupler for releaseably operatively coupling the pump motor to the aspiration pump. Related devices, systems, and methods are disclosed.

Ophthalmic cutting instruments having integrated aspiration pump

A device for performing an ophthalmic procedure in an eye including a hand-held portion; an elongate member extending from a distal end region of the hand-held portion; and an aspiration pump within the hand-held portion. The elongate member includes a lumen and an opening near a distal end region of the elongate member. The aspiration pump is in fluid communication with the opening of the elongate member. The aspiration pump includes a camshaft extending along a longitudinal axis and having a plurality of lobed cams; tubing extending parallel to the longitudinal axis; and a plurality of cam followers driven by the cams of the camshaft to move in a plane perpendicular to the longitudinal axis to sequentially compress the tubing. Related devices, systems, methods are provided.

A hand-held aspiration device is provided which has a relatively small suction volume along a suction path to improve responsiveness of the aspiration device when the device is activated. The device may be manually powered and may be provided without electronic controls. The device has a suction path which may be purged into a disposal enclosure to reduce the volume of material under the influence of the suction pressure during the procedure. The suction source may also be part of the hand-held unit to further reduce the suction path and suction volume.

Devices and methods for ocular surgery

Devices, systems, and methods for performing an ophthalmic procedure in an eye are disclosed. The devices include a hand-held portion and a distal, elongate member coupled to the hand-held portion having a lumen operatively coupled to a vacuum source. A drive mechanism operatively coupled to the elongate member is configured to oscillate the elongate member. When in use, the device is configured to aspirate ocular material from the eye through the lumen. The drive mechanism retracts the elongate member with a retraction speed profile and advances the elongate member with an extension speed profile. The retraction speed profile is different from the extension speed profile.

Devices and methods for cutting a lens in the eye are provided with a specific application being for cutting a lens while contained within the capsular bag. The device has an elongate element which forms a loop. The loop is advanced into a space between the lens and the capsular bag. The device may be used with, or incorporated into, fluid handling devices such as irrigation and aspiration devices and phacoemulsification hand pieces and disposables.

Devices and methods for cutting a lens in an eye

A device for extracting lens material from an eye including a distal, disposable portion releasably coupleable to a proximal, reusable portion. The disposable portion includes a cutting tube having a distal cutting tip and an inner lumen having an open distal end. The disposable portion includes an aspiration pump fluidly coupled to the inner lumen of the cutting tube and a cutting tube drive mechanism configured to oscillate the cutting tube. The reusable portion includes an aspiration pump motor configured to drive the aspiration pump and a coupler for releasably operatively coupling the pump motor to the aspiration pump. Related devices, systems, and methods are disclosed.

Growing community of inventors

Reno, NV, United States of America

Scott Chamness