DEVICES AND METHODS FOR CUTTING TISSUE

摘要

Various medical devices and methods for cutting, evacuating and/or performing work on tissue are provided. The devices and methods may utilize a reciprocating mechanism or motor powered by suction from a vacuum source. The medical devices and methods may be used on tissue in various regions of a patient's body and for treating various conditions, e.g., for performing a polypectomy.

主权项

1. A tissue cutting device comprising:
an elongate shaft having a proximal end, a distal end and a lumen defined therein, wherein the distal end includes an opening for receiving tissue, wherein the distal end includes a malleable portion, wherein the malleable portion is hand adjustable and does not require the use of a separate tool, wherein the malleable portion is configured to be manipulated into a desired configuration prior to entering a patient's body and to maintain the desired configuration within the patient's body to access a variety of anatomical locations; a cutting mechanism positioned within the distal end of the elongate shaft, wherein the cutting mechanism is configured to be actuated within the distal end of the elongate shaft and past the opening to cut tissue in the opening, and wherein manipulation of the malleable portion causes manipulation of the cutting mechanism and opening; and a chamber coupled to the proximal end of the elongate shaft, the chamber having a cutting mechanism driver assembly positioned therein.