Obturator with rotating, self-locking and resettable safety shie

Details Obturator with rotating, self-locking and resettable safety shie Obturator with rotating, self-locking and resettable safety shie

1993-07-29

1995-05-02

Pellegrino, Stephen C.

Surgery

Instruments

Cutting, puncturing or piercing

604164, 604264, A61B 1732

Patent

active

054115159

ABSTRACT:
An obturator (2) includes a hollow housing (4) with an obturator barrel (6) extending therefrom. The tip (172) of the obturator has a cutting element (40) and a safety shield (46). The safety shield is automatically rotatable from a cutting position, with the blade exposed, to a safe, locked position, with the blade shielded, when the blade has passed through the tissue layer being pierced. The safety shield can be unlocked and returned to the cutting position using a rearming device (128, 274) mounted to the housing at the proximal end of the obturator.

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