Trocar having transparent cannula and method of using
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United States of America Patent
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Oct 26, 1993
Grant Date -
N/A
app pub date -
Feb 14, 1992
filing date -
Feb 14, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A trocar having a trocar obturator and a trocar cannula. The trocar cannula has a cannula tube mounted in a cannula handle, wherein the cannula has an interior passage therethrough. The interior of the trocar cannula is visible through the trocar cannula. The trocar obturator is housed in the trocar cannula for insertion into a body cavity. When used in an endoscopic surgical procedure on a mammal, such that the trocar cannula is inserted into a body cavity and serves as a passageway to and from the body cavity, the interior of the trocar cannula is visible through the cannula so that the passage of instruments, sutures, staples, surgical tissue samples, etc., into and out of the mammalian body cavity through the cannula can be observed by a surgeon during an endoscopic procedure by observing the interior of the cannula at a point exterior to the cannula by looking through the cannula either directly or by using an endoscope.
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