Surgery – Instruments – Cutting – puncturing or piercing
Patent
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.
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Bito Shiro
Goto Yasuo
Hatori Tsuruo
Kimura Shuichi
Kuramoto Seiji
Aschenbrenner Peter A.
Olympus Optical Co,. Ltd.
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