Patent ID: 9433414
Filing Date: 2016-09-06
CPC Classification: A61B

Claim Text:
1. A linear cutting stapler, comprising: an upper jaw and a lower jaw capable of being closed or opened relative to each other, a staple cartridge being provided at a distal end of the lower jaw, the lower jaw having a U shape provided slidably with a firing piece and a cutter pushing bar therein, wherein the linear cutting stapler further comprises a safety mechanism comprising a safety member and an opening, the opening is arranged in the firing piece and configured to receive the safety member, and mounting or removing of the staple cartridge drives the safety member to move in a direction perpendicular to an axis extending from a proximal end to a distal end of the lower jaw, so as to enable the safety member to be disengaged from or engaged with the opening of the firing piece, wherein the safety member is an elongated stop block comprising an engaging portion, and an outer profile of the engaging portion is identical to an inner profile of the opening of the firing piece, wherein the stop block further comprises a portion for being welded which is driven by the staple cartridge, and the stop block is elongated in a direction substantially parallel with the lower jaw, and a proximal end of the stop block is the engaging portion, and a distal end of the stop block is the portion for being welded; and wherein the portion for being welded is fixedly connected to a top surface of a leaf spring, a bottom surface of the leaf spring is fixed to an inner bottom surface of the lower jaw.