US 12,220,124 B2
Surgical stapling device
Syed Sarfraz Ahamed, Shanghai (CN)
Assigned to Covidien LP, Mansfield, MA (US)
Appl. No. 17/799,349
Filed by Covidien LP, Mansfield, MA (US)
PCT Filed Feb. 14, 2020, PCT No. PCT/CN2020/075213
§ 371(c)(1), (2) Date Aug. 12, 2022,
PCT Pub. No. WO2021/159446, PCT Pub. Date Aug. 19, 2021.
Prior Publication US 2023/0093551 A1, Mar. 23, 2023
Int. Cl. A61B 17/068 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/068 (2013.01) [A61B 2017/00367 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A surgical stapling device comprising:
an elongate body defining a first longitudinal axis and having a proximal end portion and a distal end portion, the elongate body including an inner shaft and an outer tube, the inner shaft defining diametrically opposed recesses;
a tool assembly defining a second longitudinal axis; and
a mounting assembly secured to the tool assembly, the mounting assembly including first and second hinges, a first mounting member, and a second mounting member, the first mounting member including a body and a first hub extending outwardly from the body of the first mounting member, the second mounting member including a body and a second hub extending outwardly from the body of the second mounting member, each of the first and second hinges including a distal end portion and a proximal end portion, the distal end portion of the first hinge defining a bore that receives the first hub of the first mounting member and the distal end portion of the second hinge defining a second bore that receives the second hub of the second mounting member to pivotably secure the first and second hinges to the first and second mounting members, the proximal end portions of the first and second hinges received within the diametrically opposed recesses of the inner shaft to fixedly secure the first and second hinges to the elongate body, wherein the first and second hinges facilitate articulation of the first and second mounting members and the tool assembly in relation to the elongate body from a non-articulated position in which the first and second longitudinal axes are aligned to an articulated position in which the first and second longitudinal axes define an acute angle;
wherein each of the first mounting member and the second mounting member comprises a surface concavity;
wherein each of the first hinge and the second hinge comprises a dimple, with one side of the dimple having a surface convexity; and
wherein the surface convexity of each of the first hinge and the second hinge is received within the respective surface concavity of the first mounting member and the second mounting member when the tool assembly is in the non-articulated position.