James Sherman Burrows

US Patent:

6143034, Nov 7, 2000

Filed:

Jul 30, 1998

Appl. No.:

9/126706

Inventors:

James W. Burrows - Cedar Park TX

Assignee:

Sulzer Orthopedics Inc. - Austin TX

International Classification:

A61F 238

US Classification:

623 20

Abstract:

An implantable orthopedic knee joint prosthesis. A femoral component has a first body including a surface for engaging femoral bone and a second body including a surface for engaging another component. Means are provided for hingedly connecting the first and second bodies together for relative pivoting motion about a fixed pivot axis. A tibial component has a baseplate that includes a surface for engaging tibial bone and a surface for engaging another component. An adapter bearing is disposed intermediate the second body and the baseplate and includes means for engagement with and affixation to the baseplate, and means for engagement with and affixation to the second body. A keel depends from the tibial bone engaging surface of the baseplate.

US Patent:

60631236, May 16, 2000

Filed:

Jul 22, 1998

Appl. No.:

9/121132

Inventors:

James William Burrows - Cedar Park TX
Kenneth Robert Konya - Austin TX

Assignee:

Sulzer Orthopedics Inc. - Austin TX

International Classification:

A61F 234

US Classification:

623 22

Abstract:

A plastic insert is extracted from a metal acetabular shell by an extractor device which includes a seat positioned on the insert. A first guide member is attached to the seat. A second guide member is mounted for lateral movement with the first guide member. An extractor is mounted on the second guide member. The second guide member is movable relative to the first guide member for positioning the extractor adjacent the shell. A fastener is inserted through the first guide member and into the insert for securing the first guide member to the insert. The extractor is advanced into engagement with the shell so that the fastener withdraws the insert from the shell.

US Patent:

61275964, Oct 3, 2000

Filed:

Jan 23, 1998

Appl. No.:

9/012199

Inventors:

Steve Brown - Pflugerville TX
John Wheeler - Austin TX
Mark Lester - Austin TX
James Burrows - Cedar Park TX

Assignee:

Sulzer Orthopedics Inc. - Austin TX

International Classification:

A61F 228
A61F 232

US Classification:

623 16

Abstract:

An implantable orthopedic prosthesis has a macro/micro-textured bone and soft tissue attachment surface to which a spiked washer is clamped by a threaded bolt received through said washer and threaded into said prosthesis. Soft tissue is secured to the prosthesis by clamping between said washer and said soft tissue attachment surface. The tissue attachment surface is arranged as a regular grid of depressions separated by orthogonal ridges formed by electrodischarge machining of the prosthesis using a machining electrode having a mold-opposite surface texture with a micro-textured roughened surface finish. The spacing of the spikes is and integer multiple of the spacing of the depressions to assure registry of the spikes with the depressions.

US Patent:

60483652, Apr 11, 2000

Filed:

Apr 1, 1998

Appl. No.:

9/053584

Inventors:

James W. Burrows - Austin TX
Erin M. Johnson - Round Rock TX

Assignee:

Sulzer Orthopedics Inc. - Austin TX

International Classification:

A61F 236

US Classification:

623 23

Abstract:

A set of modular components from among which an implantable orthopedic hip prosthesis can be assembled. First and second implantable orthopedic femoral hip stem prosthesis each have a neck, the neck having a male conical taper surface. An implantable orthopedic femoral head prosthesis has a female conical taper surface. The respective male and female conical taper surfaces are sized and configured for mutual taper-locked interconnection if engaged, but at least one of the first and second implantable orthopedic femoral hip stem prosthesis is keyed in combination with the implantable orthopedic femoral head prosthesis to prevent engagement of the respective male conical taper surface with the female conical taper surface.

US Patent:

61171387, Sep 12, 2000

Filed:

Apr 16, 1999

Appl. No.:

9/293187

Inventors:

James W. Burrows - Cedar Park TX
Erin M. Johnson - Round Rock TX

Assignee:

Sulzer Orthopedics Inc. - Austin TX

International Classification:

A61F 246

US Classification:

606 80

Abstract:

A variety of surgical instruments facilitate implantation of a femoral stem component of an implantable prosthesis. A skeletal member is prepared by securing a reamer in the member. A broach is mounted on the reamer for broaching the member. A variety of adapters are selectively used with a head trial to check for location of the head trial. After trial placement is satisfactory, the instruments are removed so that the prosthesis can be implanted.

US Patent:

20170042692, Feb 16, 2017

Filed:

Aug 15, 2015

Appl. No.:

14/827297

Inventors:

- Rosieres Pres Troyes, FR
Guillaume Quetier - Austin TX, US
James Burrows - Marble Falls TX, US

International Classification:

A61F 2/44
A61F 2/30
A61F 2/46

Abstract:

Various devices, methods, and systems to implant and secure a fusion cage or intervertebral prosthesis during treatment of spinal injury or disease are provided. In various embodiments, such devices may comprise an instrument assembly having a body comprising a head, a shaft, and a handle; an insertion stop; and an intervertebral device retainer. Various embodiments also may comprise an impactor assembly comprising a housing; a bit comprising a head, a shaft, and a coupler; a transmission comprising a housing, a cam, a cam follower, a collet, and a driveshaft; and the motor. In various embodiments, the impactor assembly may be deployed with adjustments for the frequency, displacement, and force of impulses delivered to an anchor for the intervertebral device.