US 10,376,359 B2
Aortic bioprosthesis and systems for delivery thereof
Jacques Essinger, St-Prex (CH); Youssef Biadillah, Lausanne (CH); Stephane Delaloye, Bülach (CH); Jean-Luc Hefti, Cheseaux-Noréaz (CH); Luc Mantanus, Lausanne (CH); and Reynald Passerini, Lausanne (CH)
Assigned to SYMETIS SA, Ecublens (CH)
Appl. No. 13/505,195
Filed by Jacques Essinger, St-Prex (CH); Youssef Biadillah, Lausanne (CH); Stephane Delaloye, Bülach (CH); Jean-Luc Hefti, Cheseaux-Noréaz (CH); Luc Mantanus, Lausanne (CH); and Reynald Passerini, Lausanne (CH)
PCT Filed Sep. 10, 2010, PCT No. PCT/EP2010/063306
§ 371(c)(1), (2), (4) Date Jul. 11, 2012,
PCT Pub. No. WO2011/051043, PCT Pub. Date May 5, 2011.
Claims priority of provisional application 61/257,230, filed on Nov. 2, 2009.
Claims priority of provisional application 61/353,875, filed on Jun. 11, 2010.
Prior Publication US 2012/0271398 A1, Oct. 25, 2012
Int. Cl. A61F 2/24 (2006.01)
CPC A61F 2/2412 (2013.01) [A61F 2/2418 (2013.01); A61F 2/2436 (2013.01); A61F 2220/0058 (2013.01); A61F 2230/0054 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A replacement valve for use within a human body, the replacement valve comprising:
a valve component; and
a stent component configured to house at least a portion of the valve component, wherein the stent component is configured to shift between a collapsed configuration and an expanded configuration, the stent component comprising:
a central, longitudinal stent axis;
an inflow end and an outflow end;
a lower anchoring crown comprising an at least partly conical body, wherein the lower anchoring crown defines the inflow end of the stent component;
an upper anchoring crown in communication with the lower anchoring crown and comprising an at least partly conical body,
wherein:
the at least partly conical body of the lower anchoring crown slopes outwardly in a direction of the inflow end,
the at least partly conical body of the upper anchoring crown slopes outwardly in a direction of the outflow end and thereafter extends to a free end of the upper anchoring crown;
and
an outflow stent section in communication with the upper anchoring crown and comprising:
at least a partly conical body; and
a plurality of stabilization arches configured to bear against an ascending aorta and align the stent-component with respect to the ascending aorta,
wherein:
each stabilization arch comprises a first base portion having a first thickness, a divergent portion that diverges away from the stent axis in a direction towards the outflow end in the expanded configuration, an arch apex inclined at an angle α5 measured from the divergent portion in a direction towards the stent axis in the expanded configuration and having a second thickness, and a second base portion having a third thickness,
wherein the first thickness and the third thickness are equal and the second thickness is greater than the first thickness and is greater than the third thickness, and
wherein each first base portion of one stabilization arch is joined to the second base portion of an adjacent stabilization arch.