Matthew James Cohen

US Patent:

7282063, Oct 16, 2007

Filed:

Jan 21, 2004

Appl. No.:

10/761978

Inventors:

Howard Cohen - New York NY, US
Ladislau Biro - Middlesex NJ, US
Matthew S. Cohen - New York NY, US

Assignee:

Advanced Prosthetic Technologies, Inc. - Metuchen NJ

International Classification:

A61F 2/44

US Classification:

623 1713, 623 1714, 623 1715, 623 1716

Abstract:

A spinal surgical prosthesis such as an artificial disc having a pair of upper and lower plate members, a flexible disc interposes therebetween and a rigid collar made of a bio-compatible and bio-resorbable material surrounding the flexible disc between the upper and lower plate members. Prior to the resorption of the collar, the collar serves to provide stability to the flexible disc for enhancing osteo-integration of the prosthesis with adjacent vertebrae. Subsequent to the resorption of the rigid collar, the flexible disc provides flexibility and compressibility while maintaining the proper inter disc space and lordosis or kyphosis between adjacent vertebrae.

US Patent:

20020128716, Sep 12, 2002

Filed:

Feb 7, 2002

Appl. No.:

10/072163

Inventors:

Howard Cohen - New York NY, US
Ladislau Biro - Middlesex NJ, US
Matthew Cohen - New York NY, US

International Classification:

A61F002/44

US Classification:

623/017150, 623/017110, 623/017130, 623/017160

Abstract:

A prosthesis in the form of a cage having opposed complimentary bearing surface assemblies. The bearing surface assemblies moveable towards and away from each other. The moving mechanism being part of the bearing surface assemblies. Each of the bearing surface assemblies having an outer bearing surface whereby movement of one bearing surface assembly in one direction will move the bearing surface assemblies away from each other and movement in the opposite direction will move the bearing surface assemblies towards each other.