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:
- endovascularly delivering a replacement valve secured to an expandable anchor to a vicinity of the heart valve in a delivery configuration;
deploying the anchor from a delivery sheath while maintaining a coupling between a first plurality of actuation elements and a proximal region of the anchor and between a second plurality of actuation elements and a distal region of the anchor;
expanding the anchor by applying an axially directed non-hydraulic or non-pneumatic expanding force on the anchor through at least one of the first and second plurality of anchor actuation elements; and
moving a release actuator relative to at least one of the first and second plurality of actuation elements to thereby uncouple the at least one of the first and second plurality of actuation elements from the anchor.
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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 to a vicinity of the heart valve in an unexpanded configuration; and applying an external non-hydraulically expanding or non-pneumatically expanding actuation force on the anchor to change the shape of the anchor, such as by applying proximally and/or distally directed force on the anchor using a releasable deployment tool to expand and contract the anchor or parts of the anchor. Another aspect of the invention provides an apparatus including a replacement valve; an anchor; and a deployment tool comprising a plurality of anchor actuation elements adapted to apply a non-hydraulically expanding or non-pneumatically expanding actuation force on the anchor to reshape the anchor.
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Citations
11 Claims
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1. A method for endovascularly replacing a heart valve of a patient, the method comprising:
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endovascularly delivering a replacement valve secured to an expandable anchor to a vicinity of the heart valve in a delivery configuration; deploying the anchor from a delivery sheath while maintaining a coupling between a first plurality of actuation elements and a proximal region of the anchor and between a second plurality of actuation elements and a distal region of the anchor; expanding the anchor by applying an axially directed non-hydraulic or non-pneumatic expanding force on the anchor through at least one of the first and second plurality of anchor actuation elements; and moving a release actuator relative to at least one of the first and second plurality of actuation elements to thereby uncouple the at least one of the first and second plurality of actuation elements from the anchor. - View Dependent Claims (2)
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3. A method for endovascularly replacing a heart valve of a patient, the method comprising:
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endovascularly delivering a replacement heart valve comprising an expandable anchor and replacement leaflets to a vicinity of a heart valve within a delivery device in a delivery configuration; deploying the replacement heart valve from the delivery configuration to a deployed configuration within native heart valve leaflets; and foreshortening the replacement heart valve by applying a distally directed non-hydraulic and non-pneumatic actuation force on a proximal portion of the replacement heart valve with a plurality of replacement heart valve actuation elements, wherein the non-hydraulic and non-pneumatic actuation force is an axially directed force. - View Dependent Claims (4, 5, 6, 7)
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8. A method for endovascularly replacing a heart valve of a patient, the method comprising:
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endovascularly delivering a replacement heart valve comprising an expandable anchor and replacement leaflets to a vicinity of a heart valve within a delivery device in a delivery configuration; deploying the replacement heart valve from the delivery configuration to a deployed configuration within native heart valve leaflets; and foreshortening the replacement heart valve by applying a non-hydraulic and non-pneumatic actuation force on the replacement heart valve with a plurality of replacement heart valve actuation elements, wherein the non-hydraulic and non-pneumatic actuation force is an axially directed force, wherein the axially directed non-hydraulic and non-pneumatic actuation force comprises a distally directed non-hydraulic and non-pneumatic actuation force on the replacement heart valve with the plurality of actuation elements and a proximally directed non-hydraulic and non-pneumatic actuation force on the replacement heart valve with the plurality of actuation elements. - View Dependent Claims (9, 10)
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11. A method for endovascularly replacing a heart valve of a patient, the method comprising:
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endovascularly delivering a replacement heart valve comprising an expandable anchor and replacement leaflets to a vicinity of a heart valve within a delivery device in a delivery configuration; deploying the replacement heart valve from the delivery configuration to a deployed configuration within native heart valve leaflets; and foreshortening the replacement heart valve by applying a proximally directed non-hydraulic and non-pneumatic actuation force on a distal portion of the replacement heart valve with a plurality of replacement heart valve actuation elements, wherein the non-hydraulic and non-pneumatic actuation force is an axially directed force.
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Specification