Thomas M Higgins

US Patent:

6621374, Sep 16, 2003

Filed:

Jul 19, 2001

Appl. No.:

09/909212

Inventors:

Thomas Patrick Higgins - Mount Laurel NJ
Dana Jay Sturzebecher - Mullica NJ

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

H01P 512

US Classification:

333124, 333131, 330295

Abstract:

A power splitter/divider may be used with a paralleled amplifier. The power splitter/divider includes a common port and a distribution structure for distributing equal-amplitude samples of the applied signal from the common port to four cascades of artificial transmission lines. The impedances of the sections of artificial transmission line are stepped, in order to provide an impedance transformation between the individual ports and the impedance presented to the common port. When there are four cascades, each presents an impedance of 200 ohms to the common port, for operation in a 50-ohm system. Each artificial transmission line of each cascade includes at least two planar, spirally disposed elongated conductors, spaced to provide mutual coupling between turns. In at least some of the artificial transmission lines, discrete capacitors aid in forming pi sections of transmission line.

US Patent:

6632247, Oct 14, 2003

Filed:

Mar 22, 2001

Appl. No.:

09/814216

Inventors:

David C. Paul - Phoenixville PA
Thomas B. Higgins - Berwyn PA

Assignee:

Synthes (USA) - Paoli PA

International Classification:

A61F 228

US Classification:

623 236, 623 2363

Abstract:

The present invention relates to an implant comprising two or more bone fragments that are combined to form a single unit. Cancellous bone or cortical bone is removed from a source and fashioned into bone components with desirable shapes and sizes. The bone components may be integrated to form implants for implantation in the body. Bone stock may be formed by combining sections of various bones of the body, and the bone stock may be further fashioned for use as implants with particular geometries.

US Patent:

6660038, Dec 9, 2003

Filed:

Mar 22, 2001

Appl. No.:

09/814215

Inventors:

David C. Paul - Phoenixville PA
Thomas B. Higgins - Berwyn PA
Christopher M. Angelucci - Schwenksville PA

Assignee:

Synthes (USA) - Paoli PA

International Classification:

A61F 244

US Classification:

623 1715, 623 1716

Abstract:

Skeletal reconstruction cages include a central body having first and second ends, a first end cap coupled to one end of the central body, and a second end cap coupled to the other end of the central body. At least two of the central body, first end cap, and second end cap are formed from bone. Each of the central body, first end cap, and second end cap may be provided in different sizes so that cages with varying overall heights, and related angulations, may be created.

US Patent:

6767369, Jul 27, 2004

Filed:

Mar 22, 2001

Appl. No.:

09/814223

Inventors:

David C. Paul - Phoenixville PA
Thomas B. Higgins - Berwyn PA
Christopher M. Angelucci - Schwenksville PA
Dominique D. Messerli - West Chester PA
Kenneth I. Kobayashi - Exton PA

Assignee:

Synthes (USA) - Paoli PA

International Classification:

A61F 228

US Classification:

623 2363

Abstract:

The present invention relates to plugs for filling vacancies in bone tissue. The plugs include a body and at least one end cap that are coupled together and may be formed from bone. The body of the plug may be a sleeve, and the plug may further include an insert configured and dimensioned to be received in the sleeve.

US Patent:

7014659, Mar 21, 2006

Filed:

Dec 9, 2003

Appl. No.:

10/730011

Inventors:

David C. Paul - Phoenixville PA, US
Thomas B. Higgins - Berwyn PA, US
Christopher M. Angelucci - Schwenksville PA, US

Assignee:

Synthes (USA) - Paoli PA

International Classification:

A61F 2/44

US Classification:

623 1715, 623 1711

Abstract:

Skeletal reconstruction cages include a central body having first and second ends, a first end cap coupled to one end of the central body, and a second end cap coupled to the other end of the central body. At least two of the central body, first end cap, and second end cap are formed from bone. Each of the central body, first end cap, and second end cap may be provided in different sizes so that cages with varying overall heights, and related angulations, may be created.

US Patent:

7087082, Aug 8, 2006

Filed:

Mar 22, 2001

Appl. No.:

09/814214

Inventors:

David C. Paul - Phoenixville PA, US
Hansjuerg W. Emch - Philadelphia PA, US
Beat Schenk - Nuglar, CH
Thomas B. Higgins - Berwyn PA, US

Assignee:

Synthes (USA) - West Chester PA

International Classification:

A61F 2/44

US Classification:

623 1711, 623 1611, 623 2363, 623925

Abstract:

A bone fusion implant for repair or replacement of bone includes a hollow body formed from at least two bone fragments which are configured and dimensioned for mutual engagement and which are coupled together. The hollow body may be formed of autograft, allograft, or xenograft bone tissue, and may include a core formed of at least one of bone material and bone inducing substances, with the core being disposed in the hollow body.

US Patent:

7087087, Aug 8, 2006

Filed:

Oct 14, 2003

Appl. No.:

10/682996

Inventors:

David C. Paul - Phoenixville PA, US
Thomas B. Higgins - Berwyn PA, US

International Classification:

A61F 2/28
A61B 19/00

US Classification:

623 236, 623 2363, 128898

Abstract:

The present invention relates to an implant comprising two or more bone fragments that are combined to form a single unit. Cancellous bone or cortical bone is removed from a source and fashioned into bone components with desirable shapes and sizes. The bone components may be integrated to form implants for implantation in the body. Bone stock may be formed by combining sections of various bones of the body, and the bone stock may be further fashioned for use as implants with particular geometries.

US Patent:

7115146, Oct 3, 2006

Filed:

Mar 22, 2001

Appl. No.:

09/814224

Inventors:

David C. Paul - Phoenixville PA, US
Thomas B. Higgins - Berwyn PA, US

International Classification:

A61F 2/28

US Classification:

623 2363

Abstract:

The present invention relates to an implant comprising two or more bone fragments that are combined to form a single unit. Cancellous bone or cortical bone is removed from a source and fashioned into bone components with desirable shapes and sizes. The bone components may be integrated to form implants for implantation in the body. Bone stock may be formed by combining sections of various bones of the body, and the bone stock may be further fashioned for use as implants with particular geometries.