Obturator with rotating, self-locking and resettable safety shield
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United States of America Patent
Stats
-
May 2, 1995
Grant Date -
N/A
app pub date -
Jul 29, 1993
filing date -
Jul 29, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
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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