Trocar with safety shield

Details Trocar with safety shield Trocar with safety shield

1991-12-16

1994-06-28

Mancene, Gene

Surgery

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

Treating material introduced into or removed from body...

A61M 5178

Patent

active

053242688

ABSTRACT:
A retractable safety penetrating instrument with safety shield for introducing a portal sleeve into a cavity in the body includes a portal sleeve, a trocar disposed within the portal sleeve and a safety shield disposed between the portal sleeve and the trocar and having a distal end biased to protrude beyond a sharp distal end of the trocar. The trocar is supported in a manner to automatically move proximally from an extended position wherein the sharp distal end protrudes from the portal sleeve to a retracted position wherein the sharp distal end is protected within the retractable safety penetrating instrument in response to distal movement of the safety shield upon penetration into a cavity in the body. A retracting mechanism moves the trocar proximally and is normally locked in a position preventing proximal movement of the trocar and is released by distal movement of an operating member to trigger retraction of the trocar.

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