US 12,274,418 B2
Medical instrument with angle adjustment device
Fukang Jin, Suzhou (CN)
Assigned to SUZHOU FRANKENMAN MEDICAL INSTRUMENTS CO., LTD., Suzhou (CN)
Appl. No. 17/600,068
Filed by SUZHOU FRANKENMAN MEDICAL INSTRUMENTS CO., LTD., Suzhou (CN)
PCT Filed Sep. 9, 2020, PCT No. PCT/CN2020/114276
§ 371(c)(1), (2) Date Sep. 29, 2021,
PCT Pub. No. WO2021/073319, PCT Pub. Date Apr. 22, 2021.
Claims priority of application No. 201910974609.1 (CN), filed on Oct. 14, 2019.
Prior Publication US 2022/0183539 A1, Jun. 16, 2022
Int. Cl. A61B 1/00 (2006.01); A61B 1/005 (2006.01); A61M 25/01 (2006.01); A61M 25/09 (2006.01)
CPC A61B 1/0057 (2013.01) [A61B 1/0052 (2013.01); A61B 1/0055 (2013.01); A61M 25/0147 (2013.01); A61M 25/09 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A medical instrument with angle adjustment device, comprising a guidewire output portion (1), a guidewire guide portion (2), an adjustment control portion (3), and traction wires (4), wherein the guidewire output portion (1) is bendable relative to the guidewire guide portion (2), the guidewire output portion (1) is provided with a guidewire output hole (11), a first end of each traction wire (4) is connected to a proximal end of the guidewire output portion (1), a second end of the traction wire (4) is connected to a bending control member (31) of the adjustment control portion (3), the adjustment control portion (3) controls a bending angle of the guidewire output portion (1) through the traction wire (4), the number of the traction wires (4) is N, N is a positive integer and is greater than or equal to 3, and the ends of the N traction wires (4) are evenly distributed along the guidewire output portion (1),
wherein the adjustment control portion (3) further comprises a handle (36), a handle ferrule (361) is provided at an end of the handle (36), the handle ferrule (361) and a casing of the handle (36) are integrally formed, and a clamping portion (311) of the bending control member (31) is disposed inside the handle ferrule (361), and
wherein the adjustment control portion further comprises a locking ring (38) and a limit sleeve (37), the limit sleeve (37) is sleeved on the handle ferrule (361), an inner surface of the limit sleeve (37) matches an outer surface of the handle ferrule (361), the locking ring (38) is sleeved on the limit sleeve (37), and a conical inner surface of the locking ring (38) matches a conical outer surface of the limit sleeve (37).