US 10,888,323 B2
Staple cartridge assembly and medical stapler using the staple cartridge assembly
Wangdong Chen, Suzhou (CN); and Yanping Ye, Suzhou (CN)
Assigned to TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO., LTD., Suzhou (CN)
Appl. No. 15/540,975
Filed by TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO., LTD., Suzhou (CN)
PCT Filed Dec. 22, 2015, PCT No. PCT/CN2015/098181
§ 371(c)(1), (2) Date Jun. 29, 2017,
PCT Pub. No. WO2016/107450, PCT Pub. Date Jul. 7, 2016.
Claims priority of application No. 2014 1 0845676 (CN), filed on Dec. 31, 2014; and application No. 2014 1 0850323 (CN), filed on Dec. 31, 2014.
Prior Publication US 2017/0340328 A1, Nov. 30, 2017
Int. Cl. A61B 17/072 (2006.01); A61B 17/064 (2006.01); A61B 17/115 (2006.01); A61B 17/29 (2006.01)
CPC A61B 17/07207 (2013.01) [A61B 17/064 (2013.01); A61B 17/1155 (2013.01); A61B 2017/07235 (2013.01); A61B 2017/07271 (2013.01); A61B 2017/07285 (2013.01); A61B 2017/2933 (2013.01); A61B 2017/2936 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A staple cartridge assembly comprising a staple cartridge, an anvil and a cutter, wherein the cutter comprises a first end and a second end; the staple cartridge assembly also comprises a rotation shaft and an auxiliary closing member which is connected with the rotation shaft;
the staple cartridge assembly is also provided with a driving component capable of driving the rotation shaft to rotate; the driving component and the cutter being integral; the cutter moves toward a distal end of the staple cartridge assembly and the driving component drives the rotation shaft to drive the auxiliary closing member to move in a process in which the staple cartridge assembly is converted from an original status to a closed status; when at least the staple cartridge assembly is in the closed status, one end surface of the auxiliary closing member abuts against the anvil to apply a force to the anvil for driving the anvil to be closed towards the staple cartridge, wherein
the auxiliary closing member includes a cam rotatable around an axis of the rotation shaft;
the driving component drives the rotation shaft to drive the cam to rotate in the process in which the staple cartridge assembly is converted from the original status to the closed status; when at least the staple cartridge assembly is in the closed status, a cam surface of the cam abuts against the anvil to apply a force to the anvil for driving the anvil to be closed towards the staple cartridge; and
during a process of firing the staple cartridge assembly, the cutter moves towards the distal end of the staple cartridge assembly, and the driving component is detached from the rotation shaft and the rotation shaft becomes stationary after the driving component is detached from the rotation shaft.