Zimmer Gmbh

California Institute of Technology

Zimmer Technology, Inc.

Implex Corporation

Michael Pearl

Roy C Wiley

Gregory Nicholson

Evan L Flatow

Ken Yamaguchi

Louis Bigliani

Ian Kelly

George McCluskey

Anthony Miniaci

Anitra Durand-Allen

Joel W Burdick

Andrew Kwok

Steven S Gao

Kathleen E Fischer

Robert W Zink

The present invention relates to a set of tools and accessories used for properly positioning a stemmed humeral component, and/or a humeral stem provisional, within a canal in the humerus. The set of tools and accessories includes one or more fin clamps that are configured to be temporarily attached to a fin on the humeral component or the provisional; a ruler that is configured to be attached to the arm of the fin clamp, a fixation pin and pin driver configured to be used with the other tools for marking a position on the humerus; and one or more sleeves that are configured to slide over the stem of the humeral stem provisional to maintain it in the desired position.

Method and instruments for positioning humeral component during shoulder arthroplasty

A method, apparatus, system, and article of manufacture provide the ability to utilize fingertip tracking technology during the course of a medical examination. A sensor is mounted on a fingertip of a finger of a first person. Such a sensor is communicatively coupled to a computer to record measurements. The sensor is calibrated using a known target. The finger having the sensor is then engaged to perform a medical examination directly on a second person. Measurements are obtained from the sensor on the fingertip during the medical examination. Data is obtained (e.g., via calculations or interpolation) based on the measurements.

Fingertip tracker

A method and apparatus for facilitating shoulder arthroplasty by providing a reference to establish version of the glenoid. In one form of the invention, a guide for positioning a guide pin to facilitate implantation of a glenoid prosthesis is provided. To properly position the guide pin, the guide is first oriented with respect to the scapula. A portion of the guide is positioned over the approximate center of the glenoid surface and another portion of the guide is positioned against the anterior surface of the scapula. After the guide is properly positioned, the guide pin is inserted through an aperture in the guide and anchored in the glenoid. Thereafter, the guide pin can serve as an alignment guide for other devices used to modify the glenoid surface. For example, a reamer having a cannulated central shaft can be placed over the guide pin and utilized to resurface the glenoid.

Method and apparatus for preparing a glenoid surface

A humeral prosthetic device having a body, a stem for anchoring the device in a humeral canal of a humerus, and a head for replacing a natural humeral head of the humerus. The head is disposed at a selected angle relative to the stem and at least one of the body and stem may control the selected angle of the head relative to the stem. Further, the stem may include an extension for coupling the stem to the body. The extension may be disposed on an axis parallel to and offset from a center line of the stem for providing a lateral offset of the body relative to the stem upon reversal of the stem in the humeral canal. The humeral prosthetic device may further include an insert which coacts with the body and the head of the device to provide superior, inferior, anterior, and posterior positioning of the head relative to the body.

Modular shoulder prostheses

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Los Angeles, CA, United States of America

Michael Pearl