Tissue biopsy apparatus with collapsible cutter
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United States of America Patent
Stats
-
Jul 8, 2003
Grant Date -
Mar 6, 2003
app pub date -
Aug 28, 2001
filing date -
Aug 28, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A surgical apparatus for removing a portion of tissue comprising an elongated body having a distal edge, a collapsible cutting member mounted to the elongated body, having an opening therethrough and extending distally of the distal edge of the elongated body. The cutting member has a closed loop conductive surface and is movable from a first loop configuration to a second smaller loop configuration, the exposed conductive distal edge forming an electrosurgical cutting surface for applying electrical energy to tissue. The cutting member resects a tubular region of tissue as the apparatus is advanced through tissue and the resected tissue extends through an opening in the cutting ring for containment within the elongated body.
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