US 12,226,095 B2
Knotter
Zhiwei Ma, Beijing (CN); Danian Ke, Beijing (CN); Qingliang Zhou, Beijing (CN); and Jian Meng, Beijing (CN)
Assigned to BEIJING MED-ZENITH MEDICAL SCIENTIFIC CORPORATION LIMITED, Beijing (CN)
Appl. No. 17/312,941
Filed by BEIJING MED-ZENITH MEDICAL SCIENTIFIC CORPORATION LIMITED, Beijing (CN)
PCT Filed Dec. 9, 2019, PCT No. PCT/CN2019/124074
§ 371(c)(1), (2) Date Jun. 11, 2021,
PCT Pub. No. WO2020/119647, PCT Pub. Date Jun. 18, 2020.
Claims priority of application No. 201811526324.3 (CN), filed on Dec. 13, 2018.
Prior Publication US 2022/0047257 A1, Feb. 17, 2022
Int. Cl. A61B 17/04 (2006.01)
CPC A61B 17/0469 (2013.01) [A61B 17/0467 (2013.01); A61B 2017/047 (2013.01); A61B 2017/0488 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A knotter, comprising:
a driving structure;
a punching and shearing clip, a clip mouth of the punching and shearing clip having a first position in an open state, and a second position in a punching state when driven by the driving structure; and
scissors having a first position in an open state when driven by the driving structure, and a second position in a shearing state when driven by the driving structure;
wherein the second position of the scissors is synchronized with the second position of the punching and shearing clip;
a first end of the scissors cooperates with the driving structure, and cutting edges of the scissors being located at a second end of the scissors;
the scissors comprise a first scissor arm and a second scissor arm,
middle parts of the first scissor arm and the second scissor arm being connected by a pivot shaft, the driving structure cooperating with a first end of the first scissor arm and a first end of the second scissor arm, when the first end of the first scissor arm is close to a second end of the second scissor arm, a second end of the first scissor arm being close to the second scissor arm; the driving structure comprises a driving rod, a first end of the driving rod cooperating with the punching and shearing clip and the scissors respectively; a first side part of the first end of the driving rod has scissor arm holes which cooperate with the scissors, the first end of the scissors being located in the scissor arm holes, the scissor arm holes comprise a first scissor arm hole and a second scissor arm hole, the first scissor arm of the scissors being located in the first scissor arm hole, and the second scissor arm of the scissors being located in the second scissor arm hole,
the first scissor arm hole and the second scissor arm hole are respectively formed in oblique holes which cooperate with the first scissor arm and the second scissor arm, an extension direction of the first scissor arm hole and an extension direction of the second scissor arm hole form an X shape.