Ronald C Todd

US Patent:

7637952, Dec 29, 2009

Filed:

Mar 11, 2003

Appl. No.:

10/387329

Inventors:

Michael E. Landry - Austin TX, US
Ronald C. Todd - Austin TX, US
Erik J. Wagner - Austin TX, US
Stephen H. Hochschuler - Scottsdale AZ, US

Assignee:

Zimmer Spine, Inc. - Minneapolis MN

International Classification:

A61F 2/44
A61F 2/00

US Classification:

623 1711, 606 90, 606100, 623 1716

Abstract:

An instrumentation set may include insertion instruments for forming an implant between bone structures. The insertion instruments may include a spreader and a separator. The bone structures may be vertebrae. Implant members may be attached to the spreader and positioned between the bone structures. The separator may be inserted into the spreader to establish a desired separation distance between the implant members. Connectors may be inserted into the implant members to join the implant members together and form the implant. The insertion instruments may be removed. A seater may be used to set the position of the connectors relative to the implant members to inhibit disassembly of the implant.

US Patent:

8303662, Nov 6, 2012

Filed:

Dec 7, 2009

Appl. No.:

12/632577

Inventors:

Michael E. Landry - Austin TX, US
Ronald C. Todd - Austin TX, US
Erik J. Wagner - Austin TX, US
Stephen H. Hochschuler - Scottsdale AZ, US

Assignee:

Zimmer Spine, Inc. - Minneapolis MN

International Classification:

A61F 2/44

US Classification:

623 1716, 623 1711

Abstract:

An instrumentation set may include insertion instruments for forming an implant between bone structures. The insertion instruments may include a spreader and a separator. The bone structures may be vertebrae. Implant members may be attached to the spreader and positioned between the bone structures. The separator may be inserted into the spreader to establish a desired separation distance between the implant members. Connectors may be inserted into the implant members to join the implant members together and form the implant. The insertion instruments may be removed. A seater may be used to set the position of the connectors relative to the implant members to inhibit disassembly of the implant.

US Patent:

20040002758, Jan 1, 2004

Filed:

Aug 11, 2003

Appl. No.:

10/387361

Inventors:

Michael Landry - , US
Ronald Todd - Austin TX, US
Erik Wagner - Austin TX, US
Stephen Hochschuler - Scottsdale AZ, US

International Classification:

A61F002/46
A61F002/44
A61B017/92

US Classification:

623/017110, 606/090000, 606/100000

Abstract:

An implant may be formed in a disc space during a spinal fusion procedure. The implant may include implant members and connectors. The connectors may include sections with removed material that allow for some flexibility of the connectors. The connectors may include limiters that limit the amount of flexibility of the connectors. The ability of the connectors to flex may allow stress to be applied to bone growth material positioned in the implant. Stress may promote desirable bone growth.

US Patent:

20040030387, Feb 12, 2004

Filed:

Mar 11, 2003

Appl. No.:

10/387363

Inventors:

Michael Landry - Austin TX, US
Ronald Todd - Austin TX, US
Erik Wagner - Austin TX, US
Stephen Hochschuler - Scottsdale AZ, US

International Classification:

A61F002/28

US Classification:

623/016110, 623/017110, 623/018110, 623/017160, 606/060000, 606/061000

Abstract:

An implant may be formed in a disc space between vertebrae using instruments in an instrumentation set. In some embodiments, the implant may be formed from individual pieces including implant members and connectors. After formation of the implant, the implant may be set using a seater. The seater may fix the position of pieces of the implant relative to each other to inhibit separation of the pieces. The seater may apply force to pieces of the implant. The force applied to the pieces may deform the pieces sufficiently to inhibit subsequent separation of the pieces from each other.

US Patent:

20100217319, Aug 26, 2010

Filed:

Feb 24, 2009

Appl. No.:

12/391523

Inventors:

Ronald C. Todd - Austin TX, US

Assignee:

Abbott Spine Inc. - Austin TX

International Classification:

A61B 17/70

US Classification:

606246, 606278

Abstract:

Various stabilization rods and methods for manufacturing a connection member having a flexible section coupled between two rigid sections are disclosed. The rigid sections may have exterior surfaces adapted to have an increased surface area to inhibit the flexible section from separating from the rigid sections.

US Patent:

56308205, May 20, 1997

Filed:

Dec 5, 1994

Appl. No.:

8/349447

Inventors:

Ronald C. Todd - Austin TX

Assignee:

Sulzer Orthopedics Inc. - Austin TX

International Classification:

A61B 1756

US Classification:

606 90

Abstract:

A bicompartmental tensiometer for use in prosthetic knee surgery, and in particular for use in revision knee surgery. The tensiometer comprises two parallel, independently operable jaws which are inserted between resected surfaces on the distal femur and the proximal tibia. The jaws are opened manually by the surgeon until the proper tension is placed on the collateral ligaments. Each of the jaws comprises two paddles which remain parallel to each other as they are opened. Moreover, the two jaws remain parallel to each other, or in the same angular orientation, when adjusted to be placed adjacent the condyles. Each jaw is held open by a pawl which engages a rack.