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US20090264997A1 Active / In Force US ⏱️ 2.7 years remaining

Everting Heart Valve

Assignee: Boston Scientific Scimed Inc
•
Filing: 2009-06-26
•
Granted: —
•
Expires: 2029-06-26
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Abstract

Abstract The present invention provides methods and apparatus for endovascularly replacing a patient's heart valve. The apparatus includes a replacement valve and an expandable anchor configured for endovascular delivery to a vicinity of the patient's heart valve. In some embodiments, the replacement valve is adapted to wrap about the anchor, for example, by everting during endovascular deployment. In some embodiments, the replacement valve is not connected to expandable portions of the anchor. In some embodiments, the anchor is configured for active foreshortening during endovascular deployment. In some embodiments, the anchor includes expandable lip and skirt regions for engaging the patient's heart valve during deployment. In some embodiments, the anchor comprises a braid fabricated from a single strand of wire. In some embodiments, the apparatus includes a lock configured to maintain anchor expansion. The invention also includes methods for endovascularly replacing a patient's heart valve. In some embodiments, the method includes the steps of endovascularly delivering a replacement valve and an expandable anchor to a vicinity of the heart valve, wrapping at least a portion of the replacement valve about the anchor, and expanding the anchor to a deployed configuration.

Inventors

  • 👤 Amr Salahieh
  • 👤 Ulrich R. Haug
  • 👤 Hans F. Valencia
  • 👤 Robert A. Geshlider
  • 👤 Tom Saul
  • 👤 Dwight P. Morejohn
  • 👤 Kenneth J. Michlitsch

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 23:58
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2412; A61F2/2418; A61F2/2427; A61F2/243; A61F2/2433; A61F2/2436; A61F2/2439; A61F2220/00; A61F2220/0008; A61F2220/0016; A61F2220/0025; A61F2220/0033; A61F2220/005; A61F2220/0058; A61F2220/0075; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/005; A61F2230/0054; A61F2230/0063; A61F2230/0065; A61F2230/0073; A61F2230/0078

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 100 words
1 . A system for replacing a heart valve, comprising: an expandable anchor having a collapsed delivery configuration and an expanded configuration; a replacement valve commissure support element attached to the expandable anchor; a commissure portion of a replacement valve leaflet attached to the commissure support element; and a seal at least partially disposed around an exterior portion of the expandable anchor when the anchor is in the expanded configuration, wherein the seal is adapted to prevent blood from flowing between the seal and heart tissue, wherein a distal end of the replacement valve leaflet is attached to the seal.
Claim 2
Dependent Claim 100 words
1 . A system for replacing a heart valve, comprising: an expandable anchor having a collapsed delivery configuration and an expanded configuration; a replacement valve commissure support element attached to the expandable anchor; a commissure portion of a replacement valve leaflet attached to the commissure support element; and a seal at least partially disposed around an exterior portion of the expandable anchor when the anchor is in the expanded configuration, wherein the seal is adapted to prevent blood from flowing between the seal and heart tissue, wherein a distal end of the replacement valve leaflet is attached to the seal.
Claim 3
Dependent Claim 19 words
2 . The system of claim 1 wherein the expandable anchor is not attached to the replacement valve leaflet.
Claim 4
Dependent Claim 34 words
3 . The system of claim 1 wherein the distal end of the replacement valve leaflet is attached to a distal end of the seal when the expandable anchor is in the expanded configuration.
Claim 5
Dependent Claim 20 words
4 . The system of claim 1 wherein the commissure support element is configured to interface with an anchor actuator.
Claim 6
Dependent Claim 29 words
5 . The system of claim 4 wherein the anchor actuator is adapted to apply a proximally directed force on the commissure support element to foreshorten the expandable anchor.
Claim 7
Dependent Claim 61 words
6 . The system of claim 1 further comprising a lock comprising a first lock element and a second lock element, wherein the first and second lock elements are attached to the expandable anchor and adapted to engage with one another to lock the expandable anchor in the expanded configuration, and wherein the commissure support element includes the first lock element.
Claim 8
Dependent Claim 40 words
7 . The system of claim 6 wherein the second lock element is attached to the expandable anchor and is disposed proximal to the first lock element when the expandable anchor is in the collapsed configuration within a delivery catheter.

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