Sleeve trocar with penetration indicator

Details Sleeve trocar with penetration indicator Sleeve trocar with penetration indicator

1997-04-03

1998-12-29

Buiz, Michael

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604158, 604118, 606167, 606181, A61M 5178

Patent

active

058533923

ABSTRACT:
A sleeve trocar having a coaxially mounted, spring biased internal obturator, where the obturator has one or more peripheral channels positioned around its periphery, the channels providing a gas flow path which allows gas to flow from the internal body cavity through the interior of the sleeve trocar and through a penetration indicator device, such that an audible sound is produced when the sleeve trocar has breached the internal cavity.

REFERENCES:
patent: 4535773 (1985-08-01), Yoon
patent: 4944724 (1990-07-01), Goldberg et al.
patent: 5139485 (1992-08-01), Smith et al.
patent: 5352206 (1994-10-01), Cushieri et al.
patent: 5454791 (1995-10-01), Tovey et al.
patent: 5496313 (1996-03-01), Gentalia et al.

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