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US20070162107A1 Active / In Force US ⏱️ 0.4 years remaining

Methods and apparatus for endovascularly replacing a patient's heart valve

Assignee: Boston Scientific Scimed Inc
•
Filing: 2007-03-09
•
Granted: —
•
Expires: 2027-03-09
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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 anchor having an expandable braid. In some embodiments, the expandable braid is fabricated from a single strand of wire. In some embodiments, the expandable braid comprises at least one turn feature. The anchor and the valve preferably are configured for endovascular delivery and deployment.

Inventors

  • 👤 Ulrich Haug
  • 👤 Hans Valencia
  • 👤 Robert Geshlider
  • 👤 Tom Saul
  • 👤 Amr Salahieh
  • 👤 Dwight Morejohn

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 22:08
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2412; A61F2/2418; A61F2/2409; A61F2/2427; A61F2/2439; A61F2/243; A61F2/2433; A61F2/2436; A61F2220/00; A61F2220/0008; A61F2220/0016; A61F2220/0025; A61F2220/005; A61F2220/0058; A61F2220/0075; A61F2230/00; A61F2230/0002; A61F2230/0028; A61F2230/005; A61F2230/0054; A61F2230/0063; A61F2230/0065; A61F2230/0067; A61F2230/0073; A61F2230/0078; A61F2250/00; A61F2250/0058; A61F2250/006

Claims Analysis

Total Claims: 21
Claim 1
Independent Claim 51 words
1 . Apparatus for replacing a native aortic valve, the apparatus comprising: an anchor comprising an expandable braid, the anchor being adapted to be endovascularly delivered and expanded via active foreshortening at an anchor site within the native aortic valve; and a replacement valve configured to be secured within the anchor.
Claim 2
Dependent Claim 51 words
1 . Apparatus for replacing a native aortic valve, the apparatus comprising: an anchor comprising an expandable braid, the anchor being adapted to be endovascularly delivered and expanded via active foreshortening at an anchor site within the native aortic valve; and a replacement valve configured to be secured within the anchor.
Claim 3
Dependent Claim 40 words
2 . The apparatus of claim 1 wherein the anchor comprises a central axis, the anchor being further adapted to remain substantially undeformed in response to a pressure up to 0.5 atm directed substantially radially inward toward the central axis.
Claim 4
Dependent Claim 34 words
3 . The apparatus of claim 2 wherein the anchor is further adapted to remain substantially undeformed in response to a pressure up to 2 atm directed substantially radially inward toward the central axis.
Claim 5
Dependent Claim 34 words
4 . The apparatus of claim 1 wherein the braid comprises a first region and a second region having a diameter larger than a diameter of the first region when the anchor is expanded.
Claim 6
Dependent Claim 45 words
5 . The apparatus of claim 4 wherein the braid defines a plurality of cells, at least a first set of the cells in the first region each being of a substantially different configuration than a second set of the cells in the second region.
Claim 7
Dependent Claim 29 words
6 . The apparatus of claim 5 wherein the braid further comprises a third region having a diameter larger than the first region diameter when the anchor is expanded.
Claim 8
Dependent Claim 55 words
7 . The apparatus of claim 6 wherein the braid defines a plurality of cells, at least a first set of the cells in the first region each being of a substantially different configuration than a second set of the cells in the second region and a third set of cells in the third region.
Claim 9
Dependent Claim 19 words
8 . The apparatus of claim 1 wherein the anchor is further adapted to avoid interference with coronary ostia.
Claim 10
Dependent Claim 20 words
9 . The apparatus of claim 1 wherein the anchor is further adapted to avoid interference with a mitral valve.
Claim 11
Dependent Claim 24 words
10 . The apparatus of claim 9 wherein the braid comprises a region adapted to prevent expansion of the anchor into the mitral valve.
Claim 12
Dependent Claim 21 words
11 . The apparatus of claim 1 wherein the braid is configured to have an expanded shape that is radially symmetrical.
Claim 13
Dependent Claim 21 words
12 . The apparatus of claim 1 wherein the braid is configured to have an expanded shape that is bilaterally symmetrical.
Claim 14
Dependent Claim 32 words
13 . The apparatus of claim 1 wherein the delivery length is between about 15 mm and about 150 mm and the deployed length is between 5 mm and about 40 mm.
Claim 15
Dependent Claim 20 words
14 . The apparatus of claim 1 wherein the braid is configured to have an expanded shape that is asymmetrical.
Claim 16
Dependent Claim 29 words
15 . The apparatus of claim 1 wherein the anchor comprises first and second wires, the first wire having a diameter smaller than a diameter of the second wire.
Claim 17
Dependent Claim 19 words
16 . The apparatus of claim 1 wherein the anchor comprises first and second wires formed from different materials.
Claim 18
Dependent Claim 23 words
17 . The apparatus of claim 1 wherein the anchor has a collapsed delivery configuration, an at-rest configuration and an expanded deployed configuration.
Claim 19
Dependent Claim 23 words
18 . The apparatus of claim 17 wherein the braid comprises a shape memory material that is heat set in the at-rest configuration.
Claim 20
Dependent Claim 21 words
19 . The apparatus of claim 17 wherein the at-rest configuration is between the collapsed delivery configuration and expanded deployed configuration.
Claim 21
Dependent Claim 18 words
20 . The apparatus of claim 1 further comprising a lock configured to maintain expansion of the braid.

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