US 12,376,960 B2
Mitral stent
Guilherme Agreli, Sao Jose de Rio Preto (BR); Katharina Kiss, Vienna (AT); and Siegfried Einhellig, Vienna (AT)
Assigned to P+F PRODUCTS + FEATURES GMBH, Vienna (AT)
Filed by P+F Products + Features GmbH, Vienna (AT)
Filed on Feb. 8, 2022, as Appl. No. 17/666,926.
Claims priority of application No. 21157887 (EP), filed on Feb. 18, 2021.
Prior Publication US 2022/0257374 A1, Aug. 18, 2022
Int. Cl. A61F 2/24 (2006.01); A61F 2/90 (2013.01)
CPC A61F 2/2418 (2013.01) [A61F 2/90 (2013.01); A61F 2210/0014 (2013.01); A61F 2230/0017 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A self-expendable stent for placement at a mitral annulus that is self-expandable from an undeployed state to a deployed state comprising a stent frame having at least a first section and a second section arranged at a longitudinal axis of the stent, wherein the stent frame is formed by a plurality of endless arms, said endless arms being connected to one another at connection points forming a web-like structure with diamond-shaped cells;
a dry valve made out of bovine pericardium arranged at least at the second section of the stent with the dry bovine pericardium being configured to be rehydrated with a solution,
a skirt surrounding the dry valve and comprising at least one of bovine pericardium and polyester, and
wherein, in the deployed state, a maximum outer diameter of the first section is larger than a maximum outer diameter of the second section, and
wherein at least at a transition between the first section and the second section some of the endless arms extend outwardly beyond the web-like structure to form at least one hook, which faces the first section,
wherein a tip of the at least one hook is an interconnection point of two adjacent endless arms,
wherein the stent frame further comprises additional struts arranged at the second section, which extend outwardly beyond the web-like structure and face the first section to form additional anchors.