US 12,290,262 B2
Stapler
Jianxin Xue, Wuxi (CN); Yun Guo, Wuxi (CN); Zengjun Wang, Wuxi (CN); Yong Feng, Wuxi (CN); Chunmei Chen, Wuxi (CN); Xiao Li, Wuxi (CN); and Kai Zhu, Wuxi (CN)
Assigned to Jianxin Xue, Wuxi (CN); and JIANGSU YUNZHONG MEDICAL TECHNOLOGY CO., LTD., Wuxi (CN)
Appl. No. 18/260,756
Filed by JIANGSU YUNZHONG MEDICAL TECHNOLOGY CO., LTD., Wuxi (CN); and Jianxin Xue, Wuxi (CN)
PCT Filed Jan. 7, 2022, PCT No. PCT/CN2022/070612
§ 371(c)(1), (2) Date Jul. 7, 2023,
PCT Pub. No. WO2022/148407, PCT Pub. Date Jul. 14, 2022.
Claims priority of application No. 202110022419.7 (CN), filed on Jan. 8, 2021.
Prior Publication US 2024/0050094 A1, Feb. 15, 2024
Int. Cl. A61B 17/115 (2006.01)
CPC A61B 17/115 (2013.01) 20 Claims
OG exemplary drawing
 
1. A stapler, comprising a shell, as well as an ejector plate rod, a cartridge rod, an anvil rod, an unlocking rod, an ejector plate ring, a cartridge ring and an anvil ring, wherein the cartridge rod is between the ejector plate rod and the anvil rod; the ejector plate ring, the cartridge ring and the anvil ring all comprise a first half ring and a second half ring;
hinged ends of the first half rings and the second half rings are rotatably connected, and fixed ends of the second half rings of the ejector plate ring, the cartridge ring and the anvil ring are connected to the front ends of the ejector plate rod, the cartridge rod and the anvil rod, respectively; the rear end of the anvil rod is fixedly installed in the shell, and the rear ends of the ejector plate rod and the cartridge rod are movably installed in the shell and move back and forth along the length direction of the rod bodies of the ejector plate rod and the cartridge rod; and the ejector plate ring, the cartridge ring and the anvil ring are all provided with lock catches for locking the free ends of the first half rings to the fixed ends of the second half rings, and when the unlocking rod is pushed forward along the length direction of the rod body of the unlocking rod, the unlocking rod opens the lock catches.