Minimally invasive valve replacement system
First Claim
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1. A valve assembly, comprising:
- a replacement valve; and
a collapsible and expandable anchoring structure, said anchoring structure being dimensioned to lodge inside a valve sinus.
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Abstract
Methods and systems for minimally invasive replacement of a valve. The system includes a collapsible valve and anchoring structure, devices and methods for expanding the valve anchoring structure, adhesive means to seal the valve to the surrounding tissue, a catheter-based valve sizing and delivery system, native valve removal means, and a temporary valve and filter assembly to facilitate removal of debris material. The valve assembly comprises a valve and anchoring structure for the valve, dimensioned to fit substantially within the valve sinus.
427 Citations
13 Claims
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1. A valve assembly, comprising:
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a replacement valve; and
a collapsible and expandable anchoring structure, said anchoring structure being dimensioned to lodge inside a valve sinus.
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2. The valve assembly of claim 54, wherein said anchoring structure comprises a plurality of elliptical segments joined side by side to form junctures.
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3. The valve assembly of claim 55, wherein said junctures define longitudinal support post areas.
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4. The valve assembly of claim 56, wherein said longitudinal support post areas are configured to coincide with the sinus commissural posts.
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5. The valve assembly of claim 55, wherein said elliptical segments flare outwardly at the inflow and outflow ends.
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6. The valve assembly of claim 55, wherein said elliptical segments are joined by a double crimp.
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7. The valve assembly of claim 54, wherein said elliptical segment anchoring structure is made of a material with a high modulus of elasticity.
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8. The valve assembly of claim 55, wherein the outflow ends of said elliptical segments are removed and the distal ends of the junctures between elliptical segments are formed into prongs.
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9. The valve assembly of claim 54, wherein said elliptical segment anchoring structure is made from one piece of tubing.
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10. The valve assembly of claim 61, wherein said elliptical segment anchoring structure comprises a plurality of support posts.
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11. The valve assembly of claim 62, wherein said support posts comprise axial slots oriented toward the outflow end.
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12. The valve assembly of claim 63, wherein said support posts comprise a plurality of suture bores.
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13. The valve assembly of claim 62, wherein said support posts are configured to coincide longitudinally with the sinus commissural posts.
Specification