Sinus-engaging Valve Fixation Member
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
117 Claims
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1-90. -90. (canceled)
- 91. A medical device for treating a diseased native heart valve, comprising a prosthesis having a first plurality of arms configured to be respectively positioned within a plurality of aortic sinuses of the diseased native heart valve, and a second plurality of arms configured to support a heart valve prosthesis, wherein each of the first plurality of arms is associated with each of the second plurality of arms and each distal end portion of a respective first arm is joined to a distal end portion of an associated second arm.
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101. A support structure comprising:
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a plurality of first elements each including first and second arms connected at respective distal ends thereof to one another, forming a plurality of first closed ends, and connected at respective proximal ends thereof to a respective first or second arm of an adjacent first element, forming a plurality of first joints; and a plurality of second elements each including third and fourth arms connected at respective distal ends thereof to one another, forming a plurality of second closed ends, and connected at respective proximal ends thereof to a respective third or fourth arm 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 extends axially between the distal and proximal ends of a second element, and each of the plurality of second joints extends axially between the distal and proximal ends of a first element. - View Dependent Claims (102, 103, 104, 105, 106)
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107. A method of implanting a prosthesis, comprising:
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providing a support structure formed from a shape memory material and maintaining the support structure in a collapsed form via a catheter; positioning the support structure in the collapsed form relative to a native valve, wherein the support structure is heated above a critical temperature of the shape memory alloy as a function of being positioned within a patient'"'"'s body; radially confining the support structure via the catheter to remain in the collapsed form; and releasing at least a first portion of the support structure to radially expand the first portion. - View Dependent Claims (108, 109, 110, 111, 112)
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113. A method of treating a diseased native heart valve with a heart valve prosthesis supported on a support structure including a plurality of first arms each having an open end joined to an open end of an adjacent first arm and a plurality of second arms each having an open end joined to an open end of an adjacent second arm, the method comprising:
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positioning the plurality of first arms within aortic sinuses of the native heart valve; clamping at least a portion of the native heart valve between the plurality of first arms and the plurality of second arms; and radially compressing the at least a portion of the native heart valve against toward a vessel wall with the plurality of second arms to secure the heart valve prosthesis within the vessel. - View Dependent Claims (114, 115, 116, 117)
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Specification