US 12,408,938 B2
Neostomy apparatus
Shuo Shan, Shenzhen (CN); Huiqiang Tang, Shenzhen (CN); and Peng Liu, Shenzhen (CN)
Assigned to LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD., Shenzhen (CN)
Appl. No. 17/786,800
Filed by LIFETECH SCIENTIFIC (SHENZHEN) CO., LTD., Guangdong (CN)
PCT Filed Nov. 25, 2020, PCT No. PCT/CN2020/131491
§ 371(c)(1), (2) Date Jun. 17, 2022,
PCT Pub. No. WO2021/129288, PCT Pub. Date Jul. 1, 2021.
Claims priority of application No. 201911369159.X (CN), filed on Dec. 26, 2019.
Prior Publication US 2023/0043955 A1, Feb. 9, 2023
Int. Cl. A61B 17/295 (2006.01); A61B 17/00 (2006.01); A61B 17/29 (2006.01)
CPC A61B 17/295 (2013.01) [A61B 17/2909 (2013.01); A61B 2017/00367 (2013.01); A61B 2017/2948 (2013.01); A61B 2217/005 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A neostomy apparatus, comprising: a grasping device, a cutting device and a control handle; the control handle comprises a housing and a manipulation portion disposed in the housing, the manipulation portion is configured to axially move relative to the housing; the grasping device or the cutting device comprises an elongated member, and the manipulation portion drives the elongated member to move axially; the elongated member is partially located in the housing, and a first limiting structure is further disposed in the housing, the first limiting structure has a groove or a through hole, and a portion of the elongated member located in the housing is at least partially disposed in the groove or the through hole of the first limiting structure, the elongated member is configured to axially move relative to the first limiting structure; and the elongated member resists bending due to the radial constraint of the first limiting structure;
wherein the grasping device further comprises a catheter body, the elongated member passing through the catheter body;
wherein the elongated member comprises a push rod, a traction fiber, and a control fiber;
wherein the manipulation portion comprises a first manipulation portion, a second manipulation portion, and a third manipulation portion;
wherein the first manipulation portion, the second manipulation portion, the third manipulation portion are configured to manipulate an axial movement of the push rod, the traction fiber, and the control fiber in the catheter body, respectively;
wherein the cutting device comprises a cutting portion, the cutting portion being connected to distal ends of the traction fiber and the control fiber; and wherein the traction fiber and the control fiber are symmetrically disposed on a wall of the catheter body to exert opposite axial push-pull forces on the cutting portion.