Daniel S Robbins

US Patent:

7108698, Sep 19, 2006

Filed:

Jan 13, 2004

Appl. No.:

10/756040

Inventors:

Daniel S. Robbins - North Bennington VT, US
Erik E. Emstad - St. Paul MN, US

Assignee:

Zimmer Spine, Inc. - Minneapolis MN

International Classification:

A61B 17/60

US Classification:

606 90, 606 86, 606105, 600210

Abstract:

A surgical instrument for use during a spinal surgery procedure. The surgical instrument being configured to distract two adjacent vertebral elements and retract the nerve root to provide access to the distracted site. The instrument including an elongated blade member having a wing located on an edge of the blade member, and a handle.

US Patent:

7641659, Jan 5, 2010

Filed:

Dec 1, 2003

Appl. No.:

10/726329

Inventors:

Erik E. Emstad - St. Paul MN, US
Daniel Robbins - North Bennington VT, US

Assignee:

Zimmer Spine, Inc. - Minneapolis MN

International Classification:

A61F 5/00

US Classification:

606 86R, 606 96, 600210

Abstract:

A method of, and surgical instrument for accessing first and second pedicle locations of a spinal column area. The surgical instrument including a blade member slidably positionable along first and second wires. The instrument having a nested arrangement of members, including a portal member having an elongated aperture to access the first and second pedicle locations. The nested arrangement further including a plurality of members configured and sized to incrementally expand the access opening to the spinal column area.

US Patent:

7892174, Feb 22, 2011

Filed:

Jan 17, 2007

Appl. No.:

11/623937

Inventors:

Hugh D. Hestad - Edina MN, US
Rajesh Dwarakanath - Bloomington MN, US
Daniel Robbins - North Bennington VT, US
Deborah Lynn Hoch - Minneapolis MN, US

Assignee:

Zimmer Spine, Inc. - Minneapolis MN

International Classification:

A61B 1/32

US Classification:

600214, 600210, 600213, 600215, 600219

Abstract:

A surgical access system includes retractor for creating an access path between an incision site and a surgical site. The retractor includes a frame having a base member and a pair of generally curved rails extending therefrom. A tubular member is coupled to the frame and includes first and second blade portions that are capable of relative movement with respect to each other by movement on the curved rails. A method of inserting the retractor into a patient includes inserting a guide rod over a guide wire, locating an obturator in the retractor, inserting the obturator and retractor over the guide rod, and removing both the guide rod and obturator to leave the retractor in the body to provide the access path.

US Patent:

8262569, Sep 11, 2012

Filed:

Jan 3, 2007

Appl. No.:

11/619214

Inventors:

Hugh D. Hestad - Edina MN, US
Rajesh Dwarakanath - Bloomington MN, US
Daniel Robbins - North Bennington VT, US

Assignee:

Zimmer Spine, Inc. - Minneapolis MN

International Classification:

A61B 1/32

US Classification:

600219

Abstract:

A surgical access system includes retractor for creating an access path between an incision site and a surgical site. The retractor includes a frame having a base member and a pair of generally curved rails extending therefrom. A tubular member is coupled to the frame and includes first and second blade portions that are capable of relative movement with respect to each other by movement on the curved rails. A method of inserting the retractor into a patient includes inserting a guide rod over a guide wire, locating an obturator in the retractor, inserting the obturator and retractor over the guide rod, and removing both the guide rod and obturator to leave the retractor in the body to provide the access path.