RESECTION DEVICES AND RELATED METHODS OF DEPLOYMENT

摘要

A medical/surgical device for performing tissue resection can include an endoscope with proximal and distal ends, defining working channels, and a snare assembly located in one of the working channels. The working channel may include a bend near the distal end and towards the outward radial wall of the endoscope. The snare assembly may include a snare loop and an actuation element imparted with the pre-formed angular bends and an actuation control handle. The bends of the actuation element and the working channel may be the same. The rotational manipulation of the actuation element may synchronize the pre-formed bend of the actuation element with the bend of the working channel to concentrically (or otherwise) align the deployed snare loop with the endoscope or endoscope attachments.

主权项

1. A medical device for resecting tissue, the device comprising:
an elongate member defined by a proximal end, a distal end, one or more working channels extending from the proximal end to the distal end, and a lumen extending from the proximal end to the distal end, wherein the lumen bends radially outward from the elongate member, near the distal end; and a snare device comprising an actuation element and a snare loop, wherein the snare loop is positioned distal to the distal end of the elongate member and is coupled to an end of the actuation element protruding from the lumen; wherein the actuation element includes a bend at a distal end of the actuation element, wherein the bend in the actuation element interacts with the bend in the lumen to urge the snare loop into alignment with the distal end of the elongate member.