Methods and apparatus for endovascularly replacing a heart valve
First Claim
1. A method for endovascularly replacing a heart valve of a patient, the method comprising:
- providing a replacement heart valve comprising an expandable anchor and replacement leaflets;
providing a delivery system comprising a first plurality of actuation elements and a second plurality of actuation elements;
endovascularly delivering the replacement heart valve in an unexpanded configuration within a sheath to a vicinity of the heart valve while maintaining a releasable coupling of the first plurality of actuation elements to a proximal region of the replacement heart valve and while maintaining a releasable coupling of the second plurality of actuation elements to the replacement heart valve at a location distal to where the first plurality of actuation elements are coupled to the replacement heart valve;
deploying the replacement heart valve from the sheath in the vicinity of the heart valve;
expanding the expandable anchor in the vicinity of the heart valve by applying an axially directed force on the replacement heart valve with at least one of the first plurality of actuation elements and the second plurality of actuation elements, wherein expanding the expandable anchor occurs after deploying the replacement heart valve; and
uncoupling the first plurality of actuation elements and the second plurality of actuation elements from the replacement heart valve after the expanding step to release the replacement heart valve from the delivery systemwherein the expanding step comprises expanding the anchor with at least one of the first plurality of actuation elements and the second plurality of actuation elements without passing any of the first and second plurality of actuation elements through a center opening of the replacement heart valve.
2 Assignments
0 Petitions
Accused Products
Abstract
The invention includes methods of and apparatus for endovascularly replacing a heart valve of a patient. One aspect of the invention provides a method including the steps of endovascularly delivering a replacement valve and an expandable anchor in an unexpanded configuration within a sheath to a vicinity of the heart valve; deploying the anchor from the sheath; expanding the anchor with a deployment tool comprising a plurality of actuation elements to contact tissue at an anchor site; and retrieving the anchor into the sheath. Another aspect of the invention provides apparatus including a sheath; a deployment tool comprising a plurality of anchor actuation elements; a replacement valve configured to be disposed within the sheath for delivery to a vicinity of the heart valve; and an expandable anchor configured to be disposed within the sheath for delivery to the vicinity of the heart valve, to be deployed from the sheath, to be expanded by the deployment tool to contact tissue at an anchor site and to be retrieved back into the sheath after having been expanded.
-
Citations
20 Claims
-
1. A method for endovascularly replacing a heart valve of a patient, the method comprising:
-
providing a replacement heart valve comprising an expandable anchor and replacement leaflets; providing a delivery system comprising a first plurality of actuation elements and a second plurality of actuation elements; endovascularly delivering the replacement heart valve in an unexpanded configuration within a sheath to a vicinity of the heart valve while maintaining a releasable coupling of the first plurality of actuation elements to a proximal region of the replacement heart valve and while maintaining a releasable coupling of the second plurality of actuation elements to the replacement heart valve at a location distal to where the first plurality of actuation elements are coupled to the replacement heart valve; deploying the replacement heart valve from the sheath in the vicinity of the heart valve; expanding the expandable anchor in the vicinity of the heart valve by applying an axially directed force on the replacement heart valve with at least one of the first plurality of actuation elements and the second plurality of actuation elements, wherein expanding the expandable anchor occurs after deploying the replacement heart valve; and uncoupling the first plurality of actuation elements and the second plurality of actuation elements from the replacement heart valve after the expanding step to release the replacement heart valve from the delivery system wherein the expanding step comprises expanding the anchor with at least one of the first plurality of actuation elements and the second plurality of actuation elements without passing any of the first and second plurality of actuation elements through a center opening of the replacement heart valve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A method for endovascularly replacing a heart valve of a patient, the method comprising:
-
providing a replacement heart valve comprising an anchor and replacement leaflets; providing a delivery system comprising a first plurality of actuation elements and a second plurality of actuation elements; endovascularly delivering the replacement heart valve in an unexpanded configuration within a sheath to a vicinity of the heart valve while maintaining a releasable coupling of the first plurality of actuation elements to a proximal region of the replacement heart valve and while maintaining a releasable coupling of the second plurality of actuation elements to the replacement heart valve at a location distal to where the first plurality of actuation elements are coupled to the replacement heart valve; deploying the replacement heart valve from the sheath in the vicinity of the heart valve; foreshortening the anchor by applying an axially directed force on the replacement heart valve with at least one of the first plurality of actuation elements and the second plurality of actuation elements; and uncoupling the first plurality of actuation elements and the second plurality of actuation elements from the replacement heart valve to release the replacement heart valve from the delivery system, wherein the foreshortening step comprises foreshortening the anchor with at least one of the first plurality of actuation elements and the second plurality of actuation elements without passing any of the first and second plurality of actuation elements through a center opening of the replacement heart valve. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification