Stent for the positioning and anchoring of a valvular prosthesis
First Claim
1. An expandable stent comprising a plurality of positioning arches configured to be positioned within a plurality of pockets of a native heart valve, a plurality of retaining arches configured to support a heart valve prosthesis, and at least one auxiliary arch interspaced between two adjacent retaining arches.
7 Assignments
0 Petitions
Accused Products
Abstract
The present invention relates to a stent (10) for the positioning and anchoring of a valvular prosthesis (100) in an implantation site in the heart of a patient. Specifically, the present invention relates to an expandable stent for an endoprosthesis used in the treatment of a narrowing of a cardiac valve and/or a cardiac valve insufficiency. So as to ensure that no longitudinal displacement of a valvular prosthesis (100) fastened to a stent (10) will occur relative the stent (10) in the implanted state of the stent (10), even given the peristaltic motion of the heart, the stent (10) according to the invention comprises at least one fastening portion (11) via which the valvular prosthesis (100) is connectable to the stent (10). The stent (10) further comprises positioning arches (15) and retaining arches (16), whereby at least one positioning arch (15) is connected to at least one retaining arch (16) via a first connecting land (17). The stent (10) moreover comprises at least one auxiliary retaining arch (18) which connects the respective arms (16′, 16″) of the at least one retaining arch (16) connected to the at least one positioning arch (15).
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Citations
63 Claims
- 1. An expandable stent comprising a plurality of positioning arches configured to be positioned within a plurality of pockets of a native heart valve, a plurality of retaining arches configured to support a heart valve prosthesis, and at least one auxiliary arch interspaced between two adjacent retaining arches.
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4. (canceled)
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7. (canceled)
- 8. An expandable stent comprising a plurality of positioning arches configured to be positioned within a plurality of pockets of a native heart valve, a plurality of retaining arches configured to support a heart valve prosthesis, and at least one fastening portion including a plurality of holes.
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11-14. -14. (canceled)
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16. (canceled)
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18-20. -20. (canceled)
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22-40. -40. (canceled)
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59. A stent configured to transition from a collapsed mode when being introduced into a patient'"'"'s body to an expanded mode when implanted, comprising:
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positioning arches configured to be positioned within respective pockets of a native heart valve when in the expanded mode; retaining arches substantially circumferentially aligned and radially offset with respect to an associated positioning arch; at least one auxiliary arch interspaced between two adjacent retaining arches; and at least one fastening portion formed in an arm of a respective retaining arch and having a plurality of holes formed therein; the quantity of positioning arches and the quantity of retaining arches each respectively consisting essentially of three.
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60. A method of treating a native 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, a plurality of second arches each having an open end joined to an open end of an adjacent second arch, and at least one third arch having an open end interspaced between and joined to two adjacent second arches, the method comprising:
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positioning the plurality of first arches within pockets of the native heart valve; positioning at least a portion of the native heart valve between the plurality of first arches and the plurality of second arches; pressing the at least a portion of the native heart valve against a vessel wall with the plurality of second arches and the at least one third arch to secure the heart valve prosthesis within the vessel. - View Dependent Claims (61, 62, 63)
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Specification