US 12,279,950 B2
Cardiac valve prosthesis and delivery device thereof
Xingkun Shi, Shanghai (CN); Ming Yang, Shanghai (CN); Guoming Chen, Shanghai (CN); and Yu Li, Shanghai (CN)
Assigned to SHANGHAI MICROPORT CARDIOFLOW MEDTECH CO., LTD., Shanghai (CN)
Appl. No. 16/966,008
Filed by SHANGHAI MICROPORT CARDIOFLOW MEDTECH CO., LTD., Shanghai (CN)
PCT Filed Jan. 11, 2019, PCT No. PCT/CN2019/071292
§ 371(c)(1), (2) Date Jul. 30, 2020,
PCT Pub. No. WO2019/149046, PCT Pub. Date Aug. 8, 2019.
Claims priority of application No. 201810103244.0 (CN), filed on Feb. 1, 2018.
Prior Publication US 2020/0352712 A1, Nov. 12, 2020
Int. Cl. A61F 2/24 (2006.01)
CPC A61F 2/2418 (2013.01) [A61F 2/2409 (2013.01); A61F 2/2427 (2013.01); A61F 2210/0004 (2013.01); A61F 2220/0016 (2013.01); A61F 2230/0067 (2013.01); A61F 2230/0086 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A cardiac valve prosthesis, comprising:
an expandable valve stent provided with multiple fixing holes;
an artificial valve provided on the valve stent; and
a thorn structure comprising an expandable thorn stent and multiple thorns, the valve stent and the thorn structure configured to be set independently,
wherein the thorn structure is located inside the valve stent, and the valve stent and the thorn structure cooperate with each other with no mechanical connectors between each other; and
wherein the multiple thorns are provided on the thorn stent, the size of the thorn stent in a fully expanded state is greater than or equal to the size of the valve stent in the fully expanded state, the position of the multiple thorns on the thorn stent matches the position of the fixing holes on the valve stent, and the size of the multiple thorns on the thorn stent is smaller than the size of the fixing holes on the valve stent, when the cardiac valve prosthesis is implanted into a cardiac chamber, passing through the multiple fixing holes and penetrating tissue in the cardiac chamber so as to fix the valve stent.