Methods of collecting tissue at obstructed anatomical sites
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United States of America Patent
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-
May 9, 2000
Issued Date -
N/A
app pub date -
May 5, 1998
filing date -
Jan 6, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of collecting a tissue portion at an obstructed site within anatomical tissue comprising the steps of inserting a distal end of a guide member in the anatomical tissue to position the distal end of the guide member at an obstructed site adjacent a tissue portion to be collected, visualizing the obstructed site remotely with an endoscope, injecting a viscous, optically clear fluidic material through the guide member for release at the obstructed site to displace the anatomical tissue and create a fluid filled space in the anatomical tissue adjacent the tissue portion, introducing a distal end of a tissue collector in the space, dissecting the tissue portion from the anatomical tissue with the distal end of the tissue collector and removing the tissue portion from the anatomical tissue.
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