Self-cutting trocar
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United States of America Patent
Stats
-
Jan 7, 1997
Issued Date -
N/A
app pub date -
Mar 13, 1996
filing date -
May 22, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A self-cutting trocar pin is provided near its distal end with active cutting tools, operated manually or motor driven. Therefore, the force which is normally needed to insert the trocar into a body is greatly reduced, and the insertion can be done under control to avoid the risk of injury during penetration of the abdominal wall. A gas flow sensor indicates opto acoustically, in connection with an opening near the distal end of the trocar pin, the penetration of the abdominal wall. The cutting tool of the trocar pin maybe, for example, a disc shaped blade, a chain knife, or manually operated straight blades.
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