Delayed memory device
First Claim
1. A method of reshaping a blood vessel in a patient, comprising:
- providing a shape-changing member having a proximal end portion and a distal end portion;
maintaining the shape-changing member in a first configuration using a resorbable material;
inserting the shape-changing member into the blood vessel; and
fixing the proximal and distal end portions of the shape-changing member to an inner wall of the blood vessel;
wherein the resorbable material is resorbed in the patient'"'"'s body, thereby causing the shape-changing member to adjust from the first configuration to a second configuration for reshaping the blood vessel.
3 Assignments
0 Petitions
Accused Products
Abstract
A delivery system for delivering a prosthetic heart valve to a native valve site within the human vasculature. The prosthetic valve is disposed on a balloon at the end of a balloon catheter. The balloon catheter passes through a delivery sleeve assembly and handle. A pull wire travels from the handle to a distal end of the delivery sleeve assembly. Actuation of the handle pulls on the pull wire, which causes openings in a slotted tube of the delivery sleeve assembly to close, thus causing the delivery sleeve assembly to bend. A stretchable cover is placed over the slotted tube for biasing the steerable catheter toward a straight position. Once advanced to the native valve site, the prosthetic valve is deployed by inflating the balloon.
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Citations
20 Claims
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1. A method of reshaping a blood vessel in a patient, comprising:
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providing a shape-changing member having a proximal end portion and a distal end portion;
maintaining the shape-changing member in a first configuration using a resorbable material;
inserting the shape-changing member into the blood vessel; and
fixing the proximal and distal end portions of the shape-changing member to an inner wall of the blood vessel;
wherein the resorbable material is resorbed in the patient'"'"'s body, thereby causing the shape-changing member to adjust from the first configuration to a second configuration for reshaping the blood vessel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of reshaping a mitral valve annulus in a body, comprising:
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providing a device having a shape-changing member and first and second self-expandable stents located at opposite ends of the shape-changing member, the shape-changing member having a first set of forces working towards shortening the shape-changing member along a longitudinal axis;
maintaining the shape-changing member in an elongated shape by applying a second set of forces for counteracting the first set of forces, wherein the second set of forces is configured to decrease after the device has been implanted in the body; and
inserting the device at least partially into a coronary sinus such that the first and second self-expandable stents engage an inner wall of the coronary sinus and wherein the shape-changing member shortens over time to draw the first and second self-expandable stents toward each other. - View Dependent Claims (12, 13, 14, 15)
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16. A method of reshaping a mitral valve annulus in a body, comprising:
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providing an elongate device having proximal and distal stents;
creating an incision in the body;
advancing an introduction sheath into a venous system;
advancing a guidewire through the introduction sheath and into a coronary sinus;
advancing the elongate device over the guidewire and through the introduction sheath to the coronary sinus;
expanding the proximal and distal stents to contact an inner wall of the coronary sinus;
removing the introduction sheath and the guidewire;
closing the incision in the body; and
transforming the elongate device into a shorter shape after closing the incision. - View Dependent Claims (17, 18, 19, 20)
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Specification