	US 12,336,905 B2
	Stent and replacement heart valve prosthesis with improved fixation features
Georg Rahmig, Pforzheim (DE); Helmut Straubinger, Aschheim (DE); and Coralie Marchand, Munich (DE)
Assigned to TRICARES SAS, Paris (FR)
Appl. No. 16/969,750
Filed by TRICARES SAS, Paris (FR)
PCT Filed Feb. 14, 2019, PCT No. PCT/EP2019/053633 § 371(c)(1), (2) Date Aug. 13, 2020, PCT Pub. No. WO2019/158628, PCT Pub. Date Aug. 22, 2019.
Claims priority of application No. 18000144 (EP), filed on Feb. 15, 2018.
Prior Publication US 2021/0000593 A1, Jan. 7, 2021
Int. Cl. A61F 2/24 (2006.01); A61F 2/848 (2013.01); A61F 2/91 (2013.01); A61F 2/95 (2013.01)

CPC A61F 2/2418 (2013.01) [A61F 2/2427 (2013.01); A61F 2/848 (2013.01); A61F 2/91 (2013.01); A61F 2/9522 (2020.05); A61F 2210/0014 (2013.01); A61F 2210/0076 (2013.01); A61F 2220/0033 (2013.01); A61F 2220/0041 (2013.01); A61F 2220/0058 (2013.01); A61F 2220/0075 (2013.01); A61F 2230/001 (2013.01); A61F 2250/0039 (2013.01)]

20 Claims

1. A prosthesis comprising an outer stent that is a laser cut stent and an inner stent that is a laser cut stent, wherein:

(i) the outer stent comprises a proximal outer stent region and a distal outer stent region, wherein the distal outer stent region comprises a connecting strut guide;

(ii) the proximal outer stent region comprises a connecting strut and the inner stent comprises a connecting strut, wherein the connecting strut of the proximal outer stent region and/or the connecting strut of the inner stent is an S-strut;

(iii) the outer stent and the inner stent form a double layer that provides for crush resistance; and

(iv) the connecting strut of the inner stent and the connecting strut of the proximal outer stent region are connected by a connecting means, and

wherein, when implanted, the connecting strut guide is configured to slidably connect to the connecting strut of the inner stent, thereby connecting the inner stent, the proximal outer stent region, and the distal outer stent region in a proximal area of the prosthesis.