Prosthetic Heart Valve with Compressible Frames
First Claim
1. :
- Apparatus for use with a native valve that is disposed between an atrium and a ventricle of a heart of a subject, the apparatus comprising;
a valve frame, comprising a tubular portion that circumscribes a longitudinal axis of the valve frame so as to define a lumen along the axis, the tubular portion defining a plurality of valve-frame coupling elements disposed circumferentially around the longitudinal axis;
a plurality of prosthetic leaflets, coupled to the frame, disposed within the lumen, and arranged to provide unidirectional flow of blood from an upstream end of the lumen to a downstream end of the lumen;
an outer frame;
comprising a ring defined by a pattern of alternating peaks and troughs, the peaks being longitudinally closer to the upstream end than to the downstream end, and the troughs being longitudinally closer to the downstream end than to the upstream end, and the pattern of the ring having an amplitude longitudinally between the peaks and the troughs,comprising a plurality of legs, each of the legs coupled to the ring at a respective trough, and having a tissue-engaging flange that protrudes radially away from the axis, andshaped to define a plurality of outer-frame coupling elements, each of the outer-frame coupling elements (i) coupled to the ring, and(ii) fixed with respect to a respective valve-frame coupling element,wherein;
the tubular portion has (i) a compressed state in which the tubular portion has a compressed diameter, and (ii) an expanded state in which the tubular portion has an expanded diameter that is greater than the compressed diameter, andthe fixation of the outer-frame coupling elements to the valve-frame coupling elements is such that compression of the tubular portion from the expanded state toward the compressed state such that the valve-frame coupling elements pull the outer-frame coupling elements radially inward;
(i) reduces a circumferential distance between each of the outer-frame coupling elements and its adjacent outer-frame coupling elements, and (ii) increases the amplitude of the pattern of the ring.
3 Assignments
0 Petitions
Accused Products
Abstract
A tubular portion of a valve frame circumscribes a longitudinal axis, and defines a lumen along the axis and a plurality of valve-frame coupling elements disposed circumferentially around the axis. An outer frame: (a) comprises a ring defined by a pattern of alternating peaks and troughs, the pattern having an amplitude, (b) comprises a plurality of legs, coupled to the ring at respective troughs, and (c) is shaped to define a plurality of outer-frame coupling elements, each coupled to the ring, and fixed with respect to a respective valve-frame coupling element. Compression of the tubular portion from an expanded state toward a compressed state reduces a circumferential distance between each of the outer-frame coupling elements and its adjacent outer-frame coupling elements, and increases the amplitude of the pattern of the ring.
83 Citations
15 Claims
-
1. :
- Apparatus for use with a native valve that is disposed between an atrium and a ventricle of a heart of a subject, the apparatus comprising;
a valve frame, comprising a tubular portion that circumscribes a longitudinal axis of the valve frame so as to define a lumen along the axis, the tubular portion defining a plurality of valve-frame coupling elements disposed circumferentially around the longitudinal axis; a plurality of prosthetic leaflets, coupled to the frame, disposed within the lumen, and arranged to provide unidirectional flow of blood from an upstream end of the lumen to a downstream end of the lumen; an outer frame; comprising a ring defined by a pattern of alternating peaks and troughs, the peaks being longitudinally closer to the upstream end than to the downstream end, and the troughs being longitudinally closer to the downstream end than to the upstream end, and the pattern of the ring having an amplitude longitudinally between the peaks and the troughs, comprising a plurality of legs, each of the legs coupled to the ring at a respective trough, and having a tissue-engaging flange that protrudes radially away from the axis, and shaped to define a plurality of outer-frame coupling elements, each of the outer-frame coupling elements (i) coupled to the ring, and (ii) fixed with respect to a respective valve-frame coupling element, wherein; the tubular portion has (i) a compressed state in which the tubular portion has a compressed diameter, and (ii) an expanded state in which the tubular portion has an expanded diameter that is greater than the compressed diameter, and the fixation of the outer-frame coupling elements to the valve-frame coupling elements is such that compression of the tubular portion from the expanded state toward the compressed state such that the valve-frame coupling elements pull the outer-frame coupling elements radially inward;
(i) reduces a circumferential distance between each of the outer-frame coupling elements and its adjacent outer-frame coupling elements, and (ii) increases the amplitude of the pattern of the ring.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
- Apparatus for use with a native valve that is disposed between an atrium and a ventricle of a heart of a subject, the apparatus comprising;
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15-72. -72. (canceled)
Specification