Surgical instruments and method for applying progressive intracorporeal traction
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United States of America Patent
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Aug 27, 1996
Grant Date -
N/A
app pub date -
Oct 21, 1994
filing date -
Oct 21, 1994
priority date (Note) -
Expired
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Abstract
A surgical instrument for applying intracorporeal traction on tissue in an endoscopic workspace. An elongate introducer sleeve carries a distal jaw structure incorporating cooperating 'rolling tracks' with tissue-gripping serrations for applying continuous traction on tissue. A proximal handle includes a jaw-actuating mechanism to close the jaws and the rolling tracks around tissue and to maintain the jaws in any pivoted position. The handle further includes a drive mechanism to roll the rolling tracks. Thus, counter-rotation of the cooperating tracks causes tissue to be progressively gripped and pulled into the 'throat' or bore of the introducer sleeve. The handle includes a plurality of flexible bows as a drive mechanism so that the surgeon may rotate the instrument 360.degree. to align the jaws with tissue and thereafter roll the tracks in any angular position by a simple squeezing force.
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