US 2020/0046400 A1 · TISSUE EXCISION INSTRUMENT

Abstract

A tissue excision instrument that includes a sheath having a lumen, a manipulation member movably disposed inside the lumen, a snare wire coupled to a distal end of the manipulation member, and a holder provided at a distal portion of the sheath and configured to have a through-hole. The snare wire includes a first wire portion that has a first proximal portion including one end and a first distal portion, a second wire portion that has a second proximal portion including the other end and a second distal portion, extends through a through-hole between the second proximal portion and the second distal portion, and extends across the first wire portion, and a curved portion that extends to be curved between the first distal portion and the second distal portion and has at least a part disposed on a distal side relative to the through-hole.

Claims5

Dependent claims

A tissue excision instrument comprising:

a sheath including a lumen extending along a longitudinal axis;
a manipulation member that extends along the longitudinal axis and that is provided within the lumen, the manipulation member being configured to move along the longitudinal axis;
a snare wire coupled to a distal end of the manipulation member, the snare wire being configured to protrude from the sheath, an amount of protrusion from the sheath being adjusted based on movement of the manipulation member;
and
a holder mounted on a distal portion of the sheath including a through-hole that opens in a direction that intersects the longitudinal axis, wherein a portion of the snare wire extends through the through-hole.

2 more elements

Dependencies are inferred from the claim text.

Tissue excision instrument

Life of this patent

Tissue excision instrument

Life of this patent

Abstract

Claims5