Surgery – Instruments – Cutting – puncturing or piercing
Patent
1996-05-14
1997-09-23
Lewis, William
Surgery
Instruments
Cutting, puncturing or piercing
604164, 30366, A61B 1732
Patent
active
056698852
ABSTRACT:
A novel safety trocar assembly includes a cannula having a cannula housing with a cannula sleeve and an obturator assembly which includes (i) an obturator housing, (ii) an obturator sleeve connected to the obturator housing, (iii) an elongated obturator portion at least partially disposed within the obturator sleeve and having a penetrating distal tip for penetrating tissue, and (iv) a protective guard coaxially mounted about the penetrating tip. The obturator portion is longitudinally moveable between a disarmed position wherein the penetrating tip is contained within the cannula sleeve and an armed position wherein the penetrating tip at least partially extends beyond the distal end of the cannula sleeve. The protective guard of the obturator assembly is moveable relative to the penetrating tip between an extended position enclosing the penetrating tip and a retracted position exposing the penetrating tip for penetrating action.
REFERENCES:
patent: 1248492 (1917-12-01), Hill
patent: 1640311 (1927-08-01), Dawes
patent: 2623521 (1952-12-01), Shaw
patent: 4094217 (1978-06-01), Exline
patent: 4256119 (1981-03-01), Gauthier
patent: 4527561 (1985-07-01), Burns
patent: 4535773 (1985-08-01), Yoon
patent: 4601710 (1986-07-01), Moll
patent: 4747831 (1988-05-01), Kulli
patent: 4767413 (1988-08-01), Haber et al.
patent: 4813426 (1989-03-01), Haber et al.
patent: 4817631 (1989-04-01), Schnepp-Pesch et al.
patent: 4874382 (1989-10-01), Lindemann et al.
patent: 4904242 (1990-02-01), Kulli
patent: 4946446 (1990-08-01), Vadher
patent: 4973316 (1990-11-01), Dysarz
patent: 5046508 (1991-09-01), Weissler
patent: 5066288 (1991-11-01), Deniega et al.
patent: 5116353 (1992-05-01), Green
patent: 5462532 (1995-10-01), Gresl
patent: 5522833 (1996-06-01), Stephens et al.
patent: 5527335 (1996-06-01), Bolduc et al.
"Needle for the Puncture and Lavage of the Abdominal Cavity" by F.S. Zubairov.
Lewis William
United States Surgical Corporation
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