Richard L Woods

US Patent:

6275596, Aug 14, 2001

Filed:

Jan 10, 1997

Appl. No.:

8/781714

Inventors:

Robert J. Fretz - Maplewood MN
Paul H. Stypulkowski - North Oaks MN
Richard T. Woods - Atlanta GA

Assignee:

GN ReSound Corporation - Redwood City CA

International Classification:

H04R 2500

US Classification:

381321

Abstract:

An open ear canal hearing aid system comprises an ear canal tube sized for positioning in an ear canal of a user so that the ear canal is at least partially open for directly receiving ambient sounds. The open ear canal hearing aid system further comprises a sound processor for amplifying received ambient sounds included within a predetermined frequency to produce processed sounds and for supplying said processed sounds to said ear canal tube.

US Patent:

51221446, Jun 16, 1992

Filed:

Sep 26, 1989

Appl. No.:

7/412318

Inventors:

Jack M. Bert - Woodbury MN
Richard W. Woods - Baltimore MD

Assignee:

Kirschner Medical Corporation - Timonium MD

International Classification:

A61B 1756
A61F 238

US Classification:

606 88

Abstract:

A method and instruments for replacing the articulating surfaces of a knee joint in which the diseased area is restricted to one of the medial and lateral compartments. A femoral intramedullary rod is placed down the center of the femur. A femoral cutting block is affixed at one side to the rod and at the other side to an outrigger attached to the femur by smooth pins. The cutting block is adjustable rotationally and in the anterior-posterior plane. The cutting block is provided with surgical saw guide slots for the posterior and distal articular surface cuts and the chamfer cuts, all of which are made with the cutting block in place. The cutting block is removed and a drill guide is used for drilling two holes in the distal articular cut surface for receipt of the mounting pegs of the femoral unicompartmental prosthetic implant. A tibial intramedullary rod is placed down the center of the tibia, to which is adjustably affixed a vertical cutting block, a horizontal cutting guide and a caliper measuring device. The caliper measuring device is used to properly locate the cutting guide and the horizontal tibial cut is made.

US Patent:

52344339, Aug 10, 1993

Filed:

Oct 18, 1991

Appl. No.:

7/779525

Inventors:

Jack M. Bert - Woodbury MN
Richard W. Woods - Baltimore MD

Assignee:

Kirschner Medical Corporation - Timonium MD

International Classification:

A61B 1756

US Classification:

606 88

Abstract:

A method and instruments for replacing the articulating surfaces of a knee joint in which the diseased area is restricted to one of the medial and lateral compartments. A femoral intramedullary rod is placed down the center of the femur. A femoral cutting block is affixed at one side to the rod and at the other side to an outrigger attached to the femur by smooth pins. The cutting block is adjustable rotationally and in the anterior-posterior plane. The cutting block is provided with surgical saw guide slots for the posterior and distal articular surface cuts and the chamfer cuts, all of which are made with the cutting block in place. The cutting block is removed and a drill guide is used for drilling two holes in the distal articular cut surface for receipt of the mounting pegs of the femoral unicompartmental prosthetic implant. A tibial intramedullary rod is placed down the center of the tibia, to which is adjustably affixed a vertical cutting block, a horizontal cutting guide and a caliper measuring device. The caliper measuring device is used to properly locate the cutting guide and the horizontal tibial cut is made.