Method and apparatus for insertion of a cannula and trocar
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United States of America Patent
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-
May 5, 1998
Issued Date -
N/A
app pub date -
Dec 18, 1995
filing date -
Oct 18, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An adjustable length cannula which may be longitudinally extended or retracted in order to accommodate a range of body cavity wall thicknesses. A method for inserting the cannula is disclosed, in which a guiding cannula is placed into the peritoneal cavity using the insufflation needle as a guidewire, and a screw dilator and cannula are then placed into the peritoneal cavity using the guiding cannula as a guidewire. The guiding cannula also allows visual inspection of the peritoneal cavity with an endoscope prior to insertion of the dilator/cannula in order to verify proper clearance.
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Family
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