Repositionable heart valve and method
A method for percutaneously replacing a heart valve of a patient. In some embodiments the method includes the steps of percutaneously delivering a replacement valve and an expandable anchor to a vicinity of the heart valve in an unexpanded configuration; expanding the anchor to a deployed configuration in which the anchor contacts tissue at a first anchor site; repositioning the anchor to a second anchor site; and deploying the anchor at the second anchor site.
1. A method of recapturing a replacement heart valve apparatus, comprising:
endovascularly delivering a replacement valve and an expandable anchor within a delivery device to a vicinity of a heart valve, wherein the expandable anchor has a delivery configuration, a partially deployed, self-expanded configuration, and a fully expanded configuration, and comprises a proximal end and a plurality of posts;
allowing the anchor to self-expand from the delivery configuration in the delivery device to the partially deployed, self-expanded configuration in the vicinity of the heart valve and actively foreshortening the anchor by applying a distally directed force to the proximal end of the expandable anchor and simultaneously applying a proximal force to at least one of the posts; and
retrieving the expandable anchor within the delivery device, wherein retrieving the expandable anchor comprises collapsing the expandable anchor from the partially deployed, self-expanded configuration to the delivery configuration.
2. The method of claim 1 wherein the expandable anchor has a first diameter in the partially deployed, self-expanded configuration and a second diameter in the fully expanded configuration, and wherein the second diameter is larger than the first diameter.
3. The method of claim 2 further comprises repositioning the expandable anchor in the vicinity of the heart valve while the expandable anchor is in the partially deployed, self-expanded configuration.
4. The method of claim 1 further comprising:
expanding the expandable anchor from the partially deployed, self-expanded configuration to the fully expanded configuration; and
collapsing the expandable anchor back to the partially deployed, self-expanded configuration,
wherein the expanding and collapsing steps occur before the retrieving step.
5. The method of claim 1 further comprising reversibly coupling a deployment device to the proximal end of the expandable anchor.
6. The method of claim 5 wherein the deployment device comprises a plurality of deployment actuators.
7. The method of claim 6 wherein allowing the anchor to self-expand comprises allowing the plurality of deployment actuators to self-expand from the delivery device.
8. The method of claim 1 wherein retrieving the expandable anchor within the delivery device comprises applying a proximally directed force on the expandable anchor.
9. The method of claim 1 wherein retrieving the expandable anchor within the delivery device comprises at least partially retrieving the expandable anchor within the delivery device.