Patent ID: 6875182
Filing Date: 2005-04-05
Classification: A61B

Abstract:
1. A tissue extraction device comprising: an elongated shaft having a proximal portion, a distal portion with a distal tip having a tissue penetrating element, an inner bore, an aperture on said shaft distal portion in fluid communication with said bore, and a guide extending along said distal portion to define a tissue cutting pathway; and a tissue extraction member which is movably disposed at least in part within said shaft inner bore, which has an elongated hollow tube having a proximal tubular portion, a flexible distal tubular portion, a longitudinal bore in the flexible distal tubular portion, a distal end, a tissue receiving port in fluid communication with the bore and a tissue cutting surface at the distal end, and a guide follower on the distal tubular portion configured to engage the guide on the elongated shaft so as to direct movement of the flexible distal tubular portion along the tissue cutting pathway.