Pneumoseal trocar arrangement
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United States of America Patent
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Mar 4, 2008
Grant Date -
Jan 6, 2005
app pub date -
Feb 11, 2004
filing date -
Apr 8, 2003
priority date (Note) -
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Abstract
A cannula assembly for the maintenance of an operative pneumoperitoneum in a patient comprising an elongated cannula having a proximal end and a distal end. A removable valve is securely arranged in the proximal end of the cannula to provide a seal and minimize the escape of gas introduced into the patient's pneumoperitoneum when an operative instrument is passed therethrough.
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