US 12,121,254 B2
Slide slot type multi-arm clamp
Zhi Tang, Nanjing (CN); Mingqiao Fan, Nanjing (CN); Hongyan Jin, Nanjing (CN); Ning Li, Nanjing (CN); Changqing Li, Nanjing (CN); Jiefeng Xi, Nanjing (CN); and Jianyu Wei, Nanjing (CN)
Assigned to Micro-Tech (Nanjing) Co., Ltd., Nanjing (CN)
Filed by Micro-Tech (Nanjing) Co., Ltd., Jiangsu (CN)
Filed on Nov. 3, 2021, as Appl. No. 17/517,921.
Application 17/517,921 is a continuation of application No. PCT/CN2019/125021, filed on Dec. 13, 2019.
Claims priority of application No. 201910368716.X (CN), filed on May 5, 2019.
Prior Publication US 2022/0054156 A1, Feb. 24, 2022
Int. Cl. A61B 17/29 (2006.01)
CPC A61B 17/29 (2013.01) [A61B 2017/2902 (2013.01); A61B 2017/2906 (2013.01); A61B 2017/2911 (2013.01); A61B 2017/2934 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A slide slot type multi-arm clamp, comprising:
a handle;
a catheter, a proximal end of which is connected with the handle;
a clamping portion, which is connected detachably to a distal end of the catheter;
control lines, which are provided inside the catheter so as to connect the clamping portion and the handle;
wherein the clamping portion comprises at least two side clamp arms, at least one middle clamp arm and a clamp base; the side clamp arms are provided with moving slide slots, respectively, and the clamp base is provided with a pin axis, and the pin axis is slidable within the moving slide slots to control opening and closing of the side clamp arms; protruding parts are provided at distal ends of the moving slide slots, respectively, so as to restrict the pin axis to the distal ends of the moving slide slots and lock the side clamp arms; the middle clamp arm is connected fixedly with the clamp base;
the number of the control lines is the same as the number of the side clamp arms, each side clamp arm is connected to a respective control line for independently controlling the opening and closing of the side clamp arm,
wherein each protruding part comprises a buffer cavity and a limiting protrusion; the limiting protrusion is protruded on a side wall of a respective moving slide slot; the buffer cavity is a through hole provided on a respective side clamp arm and near the distal end of the moving slide slot, so that the limiting protrusion forms a beam structure.