Retracting tip trocar assembly

Details Retracting tip trocar assembly Retracting tip trocar assembly

1995-04-12

1997-05-06

Buiz, Michael Powell

Surgery

Instruments

Cutting, puncturing or piercing

128770, A61B 500

Patent

active

056265980

ABSTRACT:
A retracting tip trocar assembly including a trocar tube and a shaft having a piercing tip at one end thereof. The device includes a retracting mechanism which allows the piercing tip to be held in a cutting position upon application of an insertion force such as when the piercing tip is pressed against a wall of a human body cavity. Upon release of the insertion force, such as when the piercing tip passes through the wall, the retracting mechanism causes the piercing tip to be retracted into the trocar tube.

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patent: 5152754 (1992-10-01), Plyley et al.
patent: 5158552 (1992-10-01), Borgia et al.
patent: 5192025 (1993-03-01), Ranalletta et al.
patent: 5224951 (1993-07-01), Yoon
patent: 5246425 (1993-09-01), Hunsberger et al.

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