Retrievable implant and method for treatment of mitral regurgitation
First Claim
1. An implant for placement in a coronary sinus of a patient, comprising:
- a first anchor configured to be expanded from a contracted condition to an expanded condition, the first anchor having a distal end and a proximal end, the first anchor configured to radially collapse to a contracted condition in response to the application of a longitudinal force applied at a portion of the proximal end of the first anchor, the anchor configured to have a generally unobstructed central lumen passing therethrough when in the expanded configuration,a second anchor having a distal end and a proximal end, anda bridge having a first end and a second end, wherein the first end of the bridge is secured to the first anchor and the second end of the bridge is secured to the second anchor.
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Accused Products
Abstract
The invention is a device, and method for deploying same, configured for placement in a body lumen such as a coronary sinus, as may be desired to repair a mitral valve. The device includes a first anchor, a second anchor, and a bridge. The anchors are configured to delivered to a desired deployment site within the body lumen in a collapsed or contracted condition, and then be deployed by expanding the anchors into contact with the walls of the body lumen. One or more of the anchors may be configured to be radially collapsible after initial deployment in order to permit the anchor(s) to be repositioned in or removed from the body lumen. An anchor may be collapsible in response to a distal force applied to a portion of a proximal end thereof. A catheter for use with the implant is configured to deliver the implant to the site with the anchors in their respective collapsed configurations, and to release the anchors to permit them to expand into contact with the walls of the body lumen. The catheter is configured to apply a proximal force to one or both anchors, which may be applied via a cinch wire. The catheter may also be configured to apply a distal force against a portion of the proximal end of one or more of the anchors.
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Citations
20 Claims
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1. An implant for placement in a coronary sinus of a patient, comprising:
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a first anchor configured to be expanded from a contracted condition to an expanded condition, the first anchor having a distal end and a proximal end, the first anchor configured to radially collapse to a contracted condition in response to the application of a longitudinal force applied at a portion of the proximal end of the first anchor, the anchor configured to have a generally unobstructed central lumen passing therethrough when in the expanded configuration, a second anchor having a distal end and a proximal end, and a bridge having a first end and a second end, wherein the first end of the bridge is secured to the first anchor and the second end of the bridge is secured to the second anchor. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An implant for placement in a coronary sinus of a patient, comprising:
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a first anchor having a distal end and a proximal end, the first anchor configured to expand from a contracted condition to an expanded condition, the first anchor having a first generally helical coil and configured to radially collapse in response to the application of a longitudinal force applied at a portion of the proximal end of the first anchor, the radial coil defining an outer diameter of the first anchor in the expanded condition, a second anchor having a distal end and a proximal end, and a bridge having a first end and a second end, wherein the first end of the bridge is secured to the first anchor and the second end of the bridge is secured to the second anchor. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A method of deploying an implant in a body lumen, wherein the implant includes a first anchor, a second anchor, and a bridge connecting the first anchor to the second anchor, the method comprising:
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advancing the first anchor to a first anchor deployment location within a body lumen; expanding the first anchor to an expanded condition to deploy the first anchor within a body lumen, wherein the first anchor expands into contact with the walls of the body lumen with substantially all of the first anchor structure positioned at or adjacent the walls of the body lumen to thereby leave the body lumen substantially open and unblocked; advancing the second anchor to a second anchor deployment location within a body lumen; expanding the second anchor to deploy the second anchor within the body lumen, wherein the second anchor expands into contact with the walls of the body lumen; after the step of expanding the first anchor to an expanded condition, the further step of contracting the first anchor from its expanded condition to a contracted condition wherein the first anchor has a diameter significantly smaller than the diameter of the body lumen so that the first anchor can be moved proximally or distally within the body lumen. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification