US 12,102,775 B2
Ureteral catheter structure
Yi Zhang, Jiangsu (CN)
Assigned to Scivita Medical Technology Co., Ltd., Suzhou (CN)
Appl. No. 17/291,771
Filed by Scivita Medical Technology Co., Ltd., Jiangsu (CN)
PCT Filed Jun. 13, 2019, PCT No. PCT/CN2019/091126
§ 371(c)(1), (2) Date May 6, 2021,
PCT Pub. No. WO2020/093698, PCT Pub. Date May 14, 2020.
Claims priority of application No. 201811329058.5 (CN), filed on Nov. 9, 2018.
Prior Publication US 2021/0386967 A1, Dec. 16, 2021
Int. Cl. A61M 25/00 (2006.01); A61L 29/02 (2006.01); A61L 29/04 (2006.01); A61L 29/08 (2006.01)
CPC A61M 25/0053 (2013.01) [A61L 29/02 (2013.01); A61L 29/041 (2013.01); A61L 29/085 (2013.01); A61M 25/0045 (2013.01); A61M 2025/0059 (2013.01); A61M 2210/1078 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A ureteral catheter structure, comprising a catheter body (1), wherein the catheter body (1) comprises a stepped braided tube (2), a bending tube (3), and a plastic catheter tip (14) which are spliced with each other; a first stainless steel outer tube (4) supports and connects the stepped braided tube (2) and the bending tube (3) at a splice therebetween, and a first PET heat-shrinkable film (5) is coated on the first stainless steel outer tube (4);
a second stainless steel outer tube (6) supports and connects the bending tube (3) and the plastic catheter tip (14) at a position therebetween, a second PET heat-shrinkable film (7) is coated on the second stainless steel outer tube (6), a traction wire (8) is provided within the catheter body (1), an end of the traction wire (8) being fixed on the bending tube (3), while the other end passing through the stepped braided tube (2); a heat-shrinkable sleeve (9) is provided outside the bending tube (3).