Patent ID: 9186168
Filing Date: 2015-11-17
Classification: A61B

Abstract:
1. A medical instrument comprising: an elongate frame with proximal and distal ends spaced in a lengthwise direction along a central axis of the frame; a working assembly at a distal region of the frame, the working assembly comprising a U-shaped portion defined by first and second legs meeting at a base, the U-shaped portion opening toward the proximal end of the elongate frame and defining a cutting space, the working assembly further comprising a cutting assembly with a sharp edge at a fixed location in the cutting space to be urged against a tissue through manipulation of the frame to effect cutting thereof, the working assembly and elongate frame configured so that a tissue entryway is defined through which a tissue can be advanced to be moved into the cutting space and against the sharp edge; and the medical instrument further comprising a first assembly configured to be operated to vary a configuration of the entryway.