Sinus-engaging valve fixation member
First Claim
1. A medical device for treating a diseased native heart valve having sinuses and native leaflets, comprising:
- a prosthetic valve; and
a metallic support structure for supporting the prosthetic valve, the support structure comprising;
a first plurality of arms configured to be respectively positioned within the sinuses of the diseased native heart valve, wherein each of the first plurality of arms includes a substantially U-shaped or V-shaped structure having a downstream open end and an upstream closed end, and wherein each of the first plurality of arms is biased to pivot radially outward from a longitudinal axis of the medical device without outside forces acting upon the first plurality of arms, anda second plurality of arms, wherein each of the second plurality of arms includes a substantially U-shaped or V-shaped structure,wherein each of the first plurality of arms is associated with each of the second plurality of arms such that a native leaflet of the native heart valve is radially between each associated first arm and second arm when the medical device is implanted such that each first arm is radially outside a native leaflet of the native heart and each second arm is radially inside and in contact with a native leaflet of the native heart, andwherein each downstream end portion of a respective first arm is joined to a downstream end portion of an associated second arm by a strut support extending substantially in the longitudinal direction of the prosthesis.
2 Assignments
0 Petitions
Accused Products
Abstract
A prosthesis is provided for implantation at a native semilunar valve of a native valve complex, the native valve complex having three semilunar sinuses and three native commissures. The prosthesis includes a valve prosthesis support, which comprises a support structure comprising exactly three engagement arms that meet one another at three respective junctures. The engagement arms are shaped so as define three peak complexes at the three respective junctures, and three trough complexes, each of which is between two of the peak complexes. Upon implantation of the prosthesis, each of the engagement arms is at least partially disposed within a respective one of the semilunar sinuses, such that each of the peak complexes is disposed distal to and in rotational alignment with a respective one of the native commissures, and each of the trough complexes is disposed at least partially within the respective one of the semilunar sinuses.
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Citations
30 Claims
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1. A medical device for treating a diseased native heart valve having sinuses and native leaflets, comprising:
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a prosthetic valve; and a metallic support structure for supporting the prosthetic valve, the support structure comprising; a first plurality of arms configured to be respectively positioned within the sinuses of the diseased native heart valve, wherein each of the first plurality of arms includes a substantially U-shaped or V-shaped structure having a downstream open end and an upstream closed end, and wherein each of the first plurality of arms is biased to pivot radially outward from a longitudinal axis of the medical device without outside forces acting upon the first plurality of arms, and a second plurality of arms, wherein each of the second plurality of arms includes a substantially U-shaped or V-shaped structure, wherein each of the first plurality of arms is associated with each of the second plurality of arms such that a native leaflet of the native heart valve is radially between each associated first arm and second arm when the medical device is implanted such that each first arm is radially outside a native leaflet of the native heart and each second arm is radially inside and in contact with a native leaflet of the native heart, and wherein each downstream end portion of a respective first arm is joined to a downstream end portion of an associated second arm by a strut support extending substantially in the longitudinal direction of the prosthesis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A support structure comprising:
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a plurality of first elements each including first and second arm segments connected at respective proximal ends thereof to one another, forming a plurality of first closed ends, and connected at respective distal ends thereof to a respective first or second arm segment of an adjacent first element, forming a plurality of first joints wherein each of the first elements is biased to pivot radially outward from a longitudinal axis of the medical device without outside forces acting upon the first elements; and a plurality of second elements each including third and fourth arm segments connected at respective proximal ends thereof to one another, forming a plurality of second closed ends, and connected at respective distal ends thereof to a respective third or fourth arm segment of an adjacent second element, forming a plurality of second joints; wherein; each of the plurality of first elements is joined to a respective one of the plurality of second elements via a strut support; and each of the plurality of first closed ends is axially between the plurality of second closed ends and the plurality of the second joints, wherein the support structure is metallic. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A medical device for treating a diseased native heart valve having native leaflets and sinuses, comprising:
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a prosthetic valve; a support structure for supporting the prosthetic valve, the support structure comprising; a first plurality of arms configured to be respectively positioned within the sinuses of the native heart valve on a radially outward side of the native valve leaflets, wherein each of the first plurality of arms is biased to pivot radially outward from a longitudinal axis of the medical device without outside forces acting upon the first plurality of arms; a second plurality of arms configured to be positioned on a radial inward side of the native leaflets; and a plurality of strut supports joining the first plurality of arms to the second plurality of arms; wherein each of the first plurality of arms forms a first distal open end and a first proximal closed end, each of the first plurality of arms is connected at the first distal open end thereof to a respective strut support, such that each of the first plurality of arms defines a first single trough between two adjacent strut supports; and wherein each of the second plurality of arms forms a second distal open end and a second proximal closed end, each of the second plurality of arms is connected at the second distal open end thereof to a respective strut support, such that each of the second plurality of arms defines a second single trough between two adjacent strut supports. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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Specification