Seal for Enhanced Stented Valve Fixation
First Claim
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1. A vascular valve replacement system, the system comprising:
- a conduit having a lumen;
a catheter;
a prosthetic valve device including a valve connected to an expandable support structure, the valve device disposed on the catheter; and
a sealant disposed about an outer surface of the support structure of the valve device wherein when the prosthetic valve device is deployed from the catheter within the lumen of the conduit and the support structure is expanded, the sealant prevents blood flow between the conduit and the outer surface of the support structure of the valve device.
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Abstract
A valve replacement system that can be used for treating abnormalities of the right ventricular outflow tract includes a prosthetic valve device having a sealant contacting at least a portion of the outer surface of the valve device. The sealant may be breakable, and may be a hydrogel, an expandable hydrogel, or a solid. One embodiment of the invention includes a flowable sealant that is injected within the vascular system. Another embodiment of the invention includes a method for replacing a pulmonary valve that includes forming a seal around the exterior surface of a replacement valve and preventing blood flow around the replacement valve.
279 Citations
23 Claims
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1. A vascular valve replacement system, the system comprising:
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a conduit having a lumen;
a catheter;
a prosthetic valve device including a valve connected to an expandable support structure, the valve device disposed on the catheter; and
a sealant disposed about an outer surface of the support structure of the valve device wherein when the prosthetic valve device is deployed from the catheter within the lumen of the conduit and the support structure is expanded, the sealant prevents blood flow between the conduit and the outer surface of the support structure of the valve device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A pulmonary valve replacement system, the system comprising:
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a conduit having an interior wall forming a lumen;
a prosthetic valve device including a valve connected to a support structure, the valve device positionable in the lumen of the conduit, and a sealant composition disposed about at least a portion of the outer surface of the support structure, wherein the sealant composition is deployed in a flowable form via a catheter to prevent blood flow between the interior wall of the conduit and the outer surface of the support structure of the valve device. - View Dependent Claims (10, 11, 12, 13)
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14. A pulmonary valve replacement system, the system comprising:
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a catheter;
a prosthetic valve device including a valve connected to an expandable support structure, the valve device disposed on the catheter;
an expandable molding device disposed on the catheter, the molding device including spaced-apart, distal and proximal seal portions and an interior mold portion positioned between the distal and proximal seal portions, and a moldable sealant positioned within a space between an outer surface of the mold portions and an interior conduit wall to form a symmetrical molded lumen to receive the valve device. - View Dependent Claims (15, 16)
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17. A method for replacing a valve, the method comprising:
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delivering a prosthetic valve device including a valve connected to a support structure having a sealant disposed about at least a portion of the outer surface of the support structure to a treatment site within a conduit via catheter;
deploying the prosthetic valve device from the catheter;
positioning the prosthetic valve device within a conduit;
forming a seal; and
thereby preventing blood flow around the support structure via the sealant. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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Specification