Percutaneously implantable replacement heart valve device and method of making same
AssigneeColibri Heart Valve LLC
InventorsDavid Paniagua, R. David Fish
Life of this patent
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Abstract
A method of making a replacement heart valve device whereby a fragment of biocompatible tissue material is treated and soaked in one or more alcohol solutions and a solution of glutaraldehyde. The dried biocompatible tissue material is folded and rehydrated in such a way that forms a two- or three-leaflet/cusp valve without affixing of separate cusps or leaflets or cutting slits into the biocompatible tissue material to form the cusps or leaflets. After the biocompatible tissue material is folded, it is affixed at one or more points on the outer surface to the inner cavity or a stent.
Claims10
A replacement heart valve device, comprising:
- a stent member, the stent member configured to be compressible and expandable;
- and
- a dry valve directly sutured to the stent member, wherein the dry valve includes two to four leaflets made of a treated mammalian pericardium tissue, wherein the treated mammalian pericardium tissue has been treated with glutaraldehyde, glycerol and gas sterilized, and wherein the treated mammalian pericardium tissue forming the dry valve has been subjected to light and mechanical compression to decrease the molecular distance of collagen fibers.
An assembly for percutaneous and transluminal delivery of a medical implant, comprising:
- a delivery and implantation system including a flexible catheter;
- and
- a replacement heart valve device residing within the flexible catheter and configured for delivery by the flexible catheter, the replacement heart valve device including:
- a stent member, the stent member configured to be compressible and expandable;
- and
- a dry valve directly sutured to the stent member, wherein the dry valve includes two to four leaflets made of treated mammalian pericardium tissue, wherein the treated mammalian pericardium tissue has been treated with glutaraldehyde, glycerol, and gas sterilized, and wherein the treated mammalian pericardium tissue forming the dry valve has been subjected to light and mechanical compression to decrease the molecular distance of collagen fibers.
Dependencies are inferred from the claim text.