Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone
Reexamination Certificate
1999-09-15
2001-04-24
Milano, Michael J. (Department: 3738)
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
Bone
C623S023740
Reexamination Certificate
active
06221109
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to the field of protecting a spinal area of a patient during or after surgery.
2. Description of the Background Art
There are numerous spinal surgeries performed each year to treat disc injuries, repair, remove or fuse vertebrae, or combinations thereof. During such surgeries, it is desirable to protect the spinal cord and the dura sheath surrounding the spinal cord from injury. Spinal surgeries often also involve insert of bone graft material to repair or replace damaged vertebrae. During the subsequent healing process, it is desirable to protect the spinal area from ingrowth of connective tissue and undesired cells which might interfere with proper healing.
There remains a need in the art for new methods of protecting spinal areas of a patient during and after surgery.
SUMMARY OF THE INVENTION
In accordance with the present invention, a method of protecting a spinal area of a patient comprises positioning a sheet of collagen membrane material so as to surround at least a portion of a patient's spinal chord.
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Boyne Philip J.
Geistlich Peter
Schlosser Lothar
Ed. Geistlich Sohne AG fur chemische Industrie
Milano Michael J.
Pellegrino Brian
Rothwell Figg Ernst & Manbeck
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