POLYPECTOMY SNARE INSTRUMENT

摘要

This invention relates broadly to surgical instruments. More particularly, this invention relates to a surgical snare instrument (10) for excising polyps. Preferably, the instrument includes a coupling member that may increase ability to actuate the snare. According to a preferred embodiment, the present invention comprises a surgical instrument (10) for insertion through an endoscope having a handle and a working channel, said surgical instrument including an elongate flexible tubular sheath (12) having proximal (14) and distal ends (16); a flexible shaft (18) extending through and axially movable relative to the sheath (12), said shaft (18) having proximal (20) and distal ends (22); an end effector (24) coupled to or formed at said distal end of said shaft; (18) and a coupling member disposed at said distal end of said shaft.