Stent Foundation for Placement of a Stented Valve
First Claim
1. A vascular valve replacement system for use in a conduit having a nonsymmetrical lumen, the system comprising:
- a conduit having a lumen at least a portion of which is nonsymmetrical;
a delivery catheter;
a foundation structure; and
a prosthetic valve device including a valve connected to a stent;
the foundation structure and the prosthetic valve device disposed on the catheter;
wherein when the foundation structure and the valve device are deployed from the catheter in the nonsymmetrical portion of the lumen of the conduit, the foundation structure provides a symmetrical region within the lumen of the conduit complementary to the exterior surface of the prosthetic valve device and thereby improves the functioning of the valve device.
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Accused Products
Abstract
A valve replacement system that can be used for treating abnormalities of the right ventricular outflow tract in a nonsymmetrical region of a vessel or conduit that includes a prosthetic valve device and a foundation structure. The foundation structure contacts a portion of the inner wall of a vessel or conduit, and undergoes a shape change resulting in a corresponding change in the wall of the vessel or conduit. As a result, the lumen of the conduit is made symmetrical, and is complementary to the exterior surface of the stented valve, and thereby, improves the functioning of the valve. Another embodiment of the invention includes a method for replacing a pulmonary valve that includes forming a symmetrical region in a lumen of a conduit and placing a stented valve in the symmetrical region.
434 Citations
20 Claims
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1. A vascular valve replacement system for use in a conduit having a nonsymmetrical lumen, the system comprising:
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a conduit having a lumen at least a portion of which is nonsymmetrical;
a delivery catheter;
a foundation structure; and
a prosthetic valve device including a valve connected to a stent;
the foundation structure and the prosthetic valve device disposed on the catheter;
wherein when the foundation structure and the valve device are deployed from the catheter in the nonsymmetrical portion of the lumen of the conduit, the foundation structure provides a symmetrical region within the lumen of the conduit complementary to the exterior surface of the prosthetic valve device and thereby improves the functioning of the valve device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A pulmonary valve replacement system for use in a conduit having a nonsymmetrical lumen, the system comprising:
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a conduit including a nonsymmetrical portion;
a foundation structure; and
a prosthetic valve device including a valve connected to a stent wherein, when the foundation structure is positioned within a nonsymmetrical region of the conduit, the foundation structure expands causing a region of the lumen of the conduit to undergo a shape change, thereby providing a symmetrical region within the lumen of the conduit complementary to the exterior surface of the prosthetic valve device.
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11. A method of replacing a pulmonary valve, the method comprising:
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delivering a foundation structure and a prosthetic valve device to a treatment site within a lumen of a conduit via catheter;
deploying the foundation structure from the catheter;
expanding the foundation structure;
forming a symmetrical region within the lumen of the conduit; and
deploying the prosthetic valve device from the catheter in the interior of the foundation structure within the symmetrical region within the lumen of the conduit. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification