US 12,245,768 B2
Occluding stent, implanter thereof, and implanting method thereof
Guoxin Zhang, Nanjing (CN); Huaiming Sang, Nanjing (CN); Jianyu Wei, Nanjing (CN); Yun Wang, Nanjing (CN); Lurong Li, Nanjing (CN); Weifeng Zhang, Nanjing (CN); Zhenghua Shen, Nanjing (CN); Changqing Li, Nanjing (CN); and Derong Leng, Nanjing (CN)
Assigned to Micro-Tech (Nanjing) Co., Ltd., Nanjing (CN); and Jiangsu Province Hospital, Nanjing (CN)
Appl. No. 17/059,217
Filed by Micro-Tech (Nanjing) Co., Ltd., Nanjing (CN); and Jiangsu Province Hospital, Nanjing (CN)
PCT Filed Mar. 3, 2020, PCT No. PCT/CN2020/077659
§ 371(c)(1), (2) Date Nov. 26, 2020,
PCT Pub. No. WO2020/177692, PCT Pub. Date Sep. 10, 2020.
Claims priority of application No. 201910164284.0 (CN), filed on Mar. 5, 2019.
Prior Publication US 2021/0196283 A1, Jul. 1, 2021
Int. Cl. A61B 17/12 (2006.01); A61F 2/82 (2013.01); A61F 2/966 (2013.01)
CPC A61B 17/12104 (2013.01) [A61F 2/82 (2013.01); A61F 2/966 (2013.01); A61F 2230/0071 (2013.01); A61F 2230/0093 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An occluding stent, comprising a distal flange occluding body, a proximal flange occluding body, and a connection portion, wherein surfaces of both a distal most end of the distal flange occluding body and a proximal most end of the proximal flange occluding body are away from the connection portion in a longitudinal direction of the connection portion and are flat, and metal wires of the distal most end and the proximal most end are continually braided,
wherein the distal flange occluding body is umbrella-shaped, mushroom cap-shaped, disc-shaped, hemi-spherical, or spherical, and the proximal flange occluding body is umbrella-shaped, flare-shaped, mushroom cap-shaped, or spherical
a sealed occlusion state is formed between the distal flange occluding body and the proximal flange occluding body by using a coating, and the coating simultaneously comprises at least one
and the coating comprises a first occluding coating provided only between the distal flange occluding body and an inner cavity of the connection portion, a second occluding coating provided only between the proximal flange occluding body and the inner cavity of the connection portion, and a third occluding coating provided only in the inner cavity of the connection portion in a vertical direction of the connection portion to prevent food or foreign objects from passing through the inner cavity of the connection portion.