US 12,226,104 B2
Valve clip with coatings and valve clamping system
Tingchao Zhang, Zhejiang (CN); Weiwei Zhang, Zhejiang (CN); Xianzhang Zheng, Zhejiang (CN); and Zetao Wang, Zhejiang (CN)
Assigned to HANGZHOU VALGEN MEDTECH CO., LTD., Hangzhou (CN)
Filed by HANGZHOU VALGEN MEDTECH CO., LTD., Zhejiang (CN)
Filed on Jan. 12, 2022, as Appl. No. 17/574,129.
Application 17/574,129 is a continuation of application No. PCT/CN2020/105863, filed on Jul. 30, 2020.
Claims priority of application No. 201910706071.6 (CN), filed on Jul. 31, 2019; and application No. 201921231134.9 (CN), filed on Jul. 31, 2019.
Prior Publication US 2022/0133327 A1, May 5, 2022
Int. Cl. A61B 17/122 (2006.01); A61B 17/128 (2006.01); A61F 2/24 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/122 (2013.01) [A61B 17/1285 (2013.01); A61B 2017/00862 (2013.01); A61B 2017/00867 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A valve clip with coatings, comprising:
a push rod;
a proximal clamping plate and a distal clamping plate extending radially outwardly relative to the push rod, wherein
the distal clamping plate is connected to the push rod,
the proximal clamping plate is arranged between the push rod and the distal clamping plate,
a valve holding space is formed between the proximal clamping plate and the distal clamping plate,
the push rod is capable of driving the distal clamping plate to be expanded radially, and
the proximal clamping plate is capable of expanding toward the distal clamping plate by an elastic strain of the proximal clamping plate and is configured to clamp a valve tissue received in the valve holding space; and
the coatings comprising a first coating and a second coating, wherein
the first coating covers at least one side, facing the valve holding space, of the proximal clamping plate,
the second coating covers at least one side, facing the valve holding space, of the distal clamping plate,
each of the first coating and the second coating is a mesh structure, a porosity of the first coating is less than that of the second coating,
a diameter of each of meshes of the first coating is less than that of each of meshes of the second coating, and
diameters of the meshes arranged, along a direction from a proximal end to a distal end of the distal clamping plate, of the second coating are gradually increased.