Medical device for treating a heart valve insufficiency
First Claim
1. Medical device for treating a heart valve insufficiency, comprising an endoprosthesis having a plurality of positioning arches configured to be respectively positioned within a plurality of pockets of a native heart valve and a plurality of retaining arches configured to support a heart valve prosthesis, wherein each retaining arch is associated with each positioning arch and each distal end portion of a respective positioning arch is joined to a distal end portion of an associated retaining arch.
10 Assignments
0 Petitions
Accused Products
Abstract
A medical device for treating a heart valve insufficiency, with an endoprosthesis which can be introduced into a patient'"'"'s body and expanded to secure a heart valve prosthesis in the patient'"'"'s aorta. In an embodiment, the endoprosthesis has at plurality of positioning arches configured to be positioned with respect to a patient'"'"'s aorta and a plurality of retaining arches to support a heart valve prosthesis. The endoprosthesis includes a first collapsed mode during the process of introducing it into the patient'"'"'s body and a second expanded mode when it is implanted.
545 Citations
71 Claims
- 1. Medical device for treating a heart valve insufficiency, comprising an endoprosthesis having a plurality of positioning arches configured to be respectively positioned within a plurality of pockets of a native heart valve and a plurality of retaining arches configured to support a heart valve prosthesis, wherein each retaining arch is associated with each positioning arch and each distal end portion of a respective positioning arch is joined to a distal end portion of an associated retaining arch.
-
29. A stent comprising:
-
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 first leg member; 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 (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
-
-
48. A method of implanting a stent, comprising:
-
cooling a stent formed from a shape memory material and maintaining the stent in a collapsed form via a catheter; positioning the stent in the collapsed form relative to a native valve; heating the stent above the critical temperature of the shape memory alloy and radially confining the stent via the catheter to remain in the collapsed form; and releasing at least a first portion of the stent to radially expand the first portion. - View Dependent Claims (49, 50, 51, 52, 53, 54, 55, 56)
-
-
57. A method of treating an insufficiency of a native heart valve with a heart valve prosthesis supported on a stent including a plurality of first arches each having an open end joined to an open end of an adjacent first arch and a plurality of second arches each having an open end joined to an open end of an adjacent second arch, the method comprising:
-
positioning the plurality of first arches within pockets of the native heart valve; clamping at least a portion of the native heart valve between the plurality of first arches and the plurality of second arches; and radially compressing the at least a portion of the native heart valve against a vessel wall with the plurality of second arches to secure the heart valve prosthesis within the vessel. - View Dependent Claims (58, 59, 60, 61, 62)
-
-
63. A method of making a self-expanding stent including a plurality of first arches and a plurality of second arches, each first arch associated with a respective second arch, the stent being configured to be introduced into a patient'"'"'s body in a collapsed mode and configured to clamp at least a portion of a native heart valve between the plurality of first arches and the plurality of second arches in an expanded mode, the method comprising:
-
cutting the stent integrally from a metal tube; shaping the stent; and heat treating the stent so that the stent can be transferred from a collapsed mode to an expanded mode. - View Dependent Claims (64, 65, 66, 67, 68, 69, 70, 71)
-
Specification