US 2003/0125731 A1 · Polypectomy snare having ability to actuate through tortuous path

Abstract

This invention relates broadly to surgical instruments. More particularly, this invention relates to a surgical snare instrument 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 for insertion through an endoscope having a handle and a working channel, said surgical instrument including an elongate flexible tubular sheath having proximal and distal ends; a flexible shaft extending through and axially movable relative to the sheath, said shaft having proximal and distal ends; an end effector coupled to or formed at said distal end of said shaft; and a coupling member disposed at said distal end of said shaft.

Claims27

Dependent claims

A surgical instrument for insertion through an endoscope having a handle and a working channel, said surgical instrument comprising:

an elongate flexible tubular sheath having proximal and distal ends;
a flexible shaft extending through and axially movable relative to the sheath, said shaft having proximal and distal ends;
an end effector coupled to or formed at said distal end of said shaft;
a coupling member disposed at said distal end of said shaft;
a first means for rotating said shaft relative to said sheath;
and
a second means for longitudinally moving said shaft relative to said sheath.

4 more elements

Dependencies are inferred from the claim text.

Polypectomy snare having ability to actuate through tortuous path

Life of this patent

Polypectomy snare having ability to actuate through tortuous path

Life of this patent

Abstract

Claims27