Trocar

Details Trocar Trocar

1994-06-06

1995-06-13

Aschenbrenner, Peter A.

Surgery

Instruments

Cutting, puncturing or piercing

606 41, 606 45, 606167, 604164, 604264, 604167, A61B 1700

Patent

active

054238480

ABSTRACT:
A trocar comprises an obturator having a piercing tip, and a cannula for forming a passage in tissue that is punched by the piercing tip. The cannula is formed from a flexible tube or a coil tube and transforms and libitum in accordance with the shape of the surgical tool that is to be inserted into the body cavity through the cannula. Therefore, the trocar of the invention allows insertion of a surgical tool curved in a circular arc into the body cavity without requiring no enlargement of the inside diameter of the cannula.

REFERENCES:
patent: 3595239 (1971-07-01), Petersen
patent: 3964487 (1976-06-01), Judson
patent: 4550727 (1985-11-01), Rexroth
patent: 4580562 (1986-04-01), Goof et al.
patent: 4682981 (1987-07-01), Suzuki et al.
patent: 4788977 (1988-12-01), Farin et al.
patent: 4793345 (1988-12-01), Lehmer
patent: 4807620 (1989-02-01), Stul et al.
patent: 4986814 (1991-01-01), Burney et al.
patent: 5053016 (1991-10-01), Lander
patent: 5066288 (1991-11-01), Deniega
patent: 5104383 (1992-04-01), Shichman
patent: 5221281 (1993-06-01), Klicek

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