Adjustable prosthetic valve implant
First Claim
1. A prosthetic implant, for treating a diseased aortic valve, comprising:
- a substantially tubular body configured to be positioned in an aorta of a patient, at or near the patient'"'"'s aortic valve, the body comprising;
a lumen extending through the body from a proximal end to a distal end of the body; and
an adjustable frame surrounding the lumen; and
at least one adjustable element located in or on the body and extending at least partially around a circumference of the lumen;
wherein the at least one adjustable element comprises a shape memory material ring and an electrically conductive wire wrapped around the ring, the wire being configured to conduct heat to the ring, so that the at least one adjustable element is transformable, in response to application of an activation energy, from a first configuration to a second configuration, wherein the first configuration and second configuration differ in a size of at least one dimension of the at least one adjustable element; and
wherein the at least one adjustable element is configured to engage at least one of a root of the aorta, an annulus of the aortic valve, and the patient'"'"'s left ventricle, when the at least one adjustable element is in the second configuration.
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Abstract
A prosthetic implant for treating a diseased aortic valve is described. The prosthetic implant includes a substantially tubular body configured to be positioned in an aorta of a patient, at or near the patient'"'"'s aortic valve. The body includes a lumen extending through the body from a proximal end to a distal end of the body; and an adjustable frame surrounding the lumen. The prosthetic implant further includes at least one adjustable element located in or on the body and extending at least partially around a circumference of the lumen. The at least one adjustable element includes a shape memory material and is transformable, in response to application of an activation energy, from a first configuration to a second configuration, wherein the first configuration and second configuration differ in a size of at least one dimension of the at least one adjustable element. The at least one adjustable element may engage at least one of a root of the aorta, an annulus of the aortic valve, and the patient'"'"'s left ventricle, when the at least one adjustable element is in the second configuration.
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Citations
28 Claims
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1. A prosthetic implant, for treating a diseased aortic valve, comprising:
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a substantially tubular body configured to be positioned in an aorta of a patient, at or near the patient'"'"'s aortic valve, the body comprising; a lumen extending through the body from a proximal end to a distal end of the body; and an adjustable frame surrounding the lumen; and at least one adjustable element located in or on the body and extending at least partially around a circumference of the lumen; wherein the at least one adjustable element comprises a shape memory material ring and an electrically conductive wire wrapped around the ring, the wire being configured to conduct heat to the ring, so that the at least one adjustable element is transformable, in response to application of an activation energy, from a first configuration to a second configuration, wherein the first configuration and second configuration differ in a size of at least one dimension of the at least one adjustable element; and wherein the at least one adjustable element is configured to engage at least one of a root of the aorta, an annulus of the aortic valve, and the patient'"'"'s left ventricle, when the at least one adjustable element is in the second configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A prosthetic implant for treating a diseased valve in a patient'"'"'s aorta, the prosthetic implant comprising:
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valve means for permitting one-way flow of blood from the patient'"'"'s left ventricle into the aorta; engagement means for engaging at least one of a root of the aorta, an annulus of the aortic valve, and the patient'"'"'s left ventricle, the engagement means being coupled to the valve means; support means for supporting the valve means and coupled to the valve means, the support means being configured to extend distally into the ascending aorta beyond the aortic valve annulus when the valve means is in position at the aortic valve; wherein a wire is wrapped around the engagement means, the wire being configured to conduct heat to the engagement means, so that the engagement means is adjustable from a first configuration to a second configuration in response to an activation energy established using an energy source external to the patient'"'"'s body, wherein the first configuration and second configuration differ in size in at least one dimension; and wherein the engagement means engages the at least one of the root of the aorta, the annulus of the aortic valve, and the patient'"'"'s left ventricle, when in the second configuration.
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Specification