Safety trocar
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United States of America Patent
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-
Nov 25, 1997
Grant Date -
N/A
app pub date -
Jun 4, 1996
filing date -
Aug 25, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A safety trocar is provided which includes a spring-loaded shield that shields the cutting tip of the obturator after the obturator penetrates tissue. The distal end of the shield is conical in profile and contains a slot which conforms to the geometry of the cutting tip. The obturator tip contains a knife edge blade which extends the length of the cannula inner diameter. Ideally, the knife is made of an amorphous metal, and may be serrated at its edge. In one embodiment, the knife edge is contacted directly to a portion of the safety shield.
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Family
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Cited Art Landscape
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