Patent ID: 6059734
Filing Date: 2000-05-09
Classification: A61B,A61M

Abstract:
A method of collecting a tissue portion at an obstructed site within anatomical tissue comprising the steps ofinserting a distal end of a guide member in the anatomical tissue;advancing the distal end of the guide member in the anatomical tissue to position the distal end of the guide member at the obstructed site adjacent the tissue portion;visualizing the obstructed site, from external of the anatomical tissue, with an endoscope disposed in the guide member;injecting a viscous, optically clear fluidic material at the obstructed site through a channel of the guide member to displace the anatomical tissue at the obstructed site and create a fluid filled space adjacent the tissue portion;introducing a distal end of a tissue collector in the space to access the tissue portion;dissecting the tissue portion from the anatomical tissue with the distal end of the tissue collector; andremoving the tissue portion from the anatomical tissue.