05197971 is referenced by 575 patents and cites 6 patents.

A retractor for use in arthroscopic surgery. The retractor has a mechanical expanding portion for expanding against sub-surface tissues when the retractor is in use. The retractor also has a fluid-operated expanding portion, which may be independently controllable, for expanding against sub-surface tissues when the retractor is in use. The retractor is inserted through a small percutaneous opening, expanded in sub-surface tissues without significantly damaging the tissue, then collapsed after use for removal. The retractor can be manipulated to allow the surgeon to push or pull or lever on tissue. The retractor can be hollow like a cannula to permit the passage of one or more surgical devices through the retractor, with a side portal into the center of the retractor.

Title
Arthroscopic retractor and method of using the same
Application Number
487645
Publication Number
5197971
Application Date
December 18, 1990
Publication Date
March 30, 1993
Inventor
Peter M Bonutti
1303 W. Evergreen Plz., Effingham, 62401
IL, US
Agent
Tarolli Sundheim & Covell
IPC
A61M 29/02
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