System For Implanting a Valve Prosthesis
First Claim
1. A prosthetic valve assembly for use in replacing a deficient native valve, the valve assembly comprising:
- a valve having a plurality of leaflets, a base, and a plurality of commissure points;
a valve support comprising a generally cylindrical band comprising a plurality of expandable cells, the valve support configured to be collapsible for transluminal delivery and expandable to contact the anatomical annulus of the native valve when the assembly is positioned in situ, said generally cylindrical band of the valve support supporting the base and the commissure points of the valve.
1 Assignment
0 Petitions
Accused Products
Abstract
A valve prosthesis (9) for implantation in the body by use of catheter (11) comprises a stent made from an expandable cylinder-shaped thread structure (2,3) comprising several spaced apices (4). The elastically collapsible valve (4) is mounted on the stent as the commissural points (5) of the valve (6) is secured to the projecting apices (4). The valve prosthesis (9) can be compressed around the balloon means (13) of the balloon catheter (11) and be inserted in a channel, for instance in the aorta (10). When the valve prosthesis is placed correctly the balloon means (13) is inflated thereby expanding the stent and wedging it against the wall of the aorta. The balloon means is provided with beads (14) to ensure a steady fastening of the valve prosthesis on the balloon means during insertion and expansion. The valve prosthesis (9) and the balloon catheter (11) make it possible to insert a cardiac valve prosthesis without a surgical operation comprising opening the thoracic cavity.
101 Citations
20 Claims
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1. A prosthetic valve assembly for use in replacing a deficient native valve, the valve assembly comprising:
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a valve having a plurality of leaflets, a base, and a plurality of commissure points; a valve support comprising a generally cylindrical band comprising a plurality of expandable cells, the valve support configured to be collapsible for transluminal delivery and expandable to contact the anatomical annulus of the native valve when the assembly is positioned in situ, said generally cylindrical band of the valve support supporting the base and the commissure points of the valve. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of replacing a deficient native valve comprising the steps of:
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providing a prosthetic valve assembly, the assembly comprising a valve, a valve support comprising a plurality of expandable cells and having the base and the commissures of the valve positioned and secured at or adjacent the expandable cells; collapsing the valve support and anchor to fit on a distal portion of a catheter; advancing the catheter to the deficient native valve to a position within adjacent the leaflets and within the annulus of the deficient native valve; deploying the valve assembly within the deficient native valve, whereby the valve support expands against the leaflets of the deficient native valve; and withdrawing the catheter, leaving the valve assembly to function in place of the deficient native valve. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
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16. A prosthetic valve assembly for use in replacing a deficient native valve, the valve assembly comprising:
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a valve having a plurality of leaflets and commissure points; a valve support comprising a plurality of expandable cells and a plurality of longitudinal bars, the valve support configured to be collapsible for transluminal delivery and expandable to contact the anatomical annulus of the native valve when the assembly is positioned in situ, said valve support supporting the base and the commissure points of the valve, wherein the commissure points of the valve are secured to the valve support at the longitudinal bars and adjacent one or more of the expandable cells. - View Dependent Claims (17, 18, 19, 20)
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Specification