Patent ID: 9572591
Date: 2017-02-21
CPC Classifications: A61B

Claim:
1. A tissue removal tool for use with an endoscope, the tool comprising: a loop formed by a piece of wire and moveable between an open position and a closed position; a handle; a link having a first end attached to the handle and a second end attached to the loop, the loop being moveable between the open and closed positions by action of the handle; wherein the shape of the loop is defined in the open position by a proximal portion and a distal portion, the proximal portion and the distal portion being separated by a transitional portion, wherein the loop is defined by a single twist that extends substantially along an elongate axis of the wire by at least 45 degrees on each side of the transitional portion so that the proximal portion pushed against a piece of tissue being removed to raise the piece of tissue and pinches the piece of tissue, and the distal portion transects the piece of tissue after the proximal portion pinches the piece of tissue; and wherein the proximal portion comprises at least two collapse-resistant bends on at least one side of the loop.