Prosthetic repair of body passages
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Abstract
A prosthesis that resiliently engages a body passage includes an annular clamping ring which may be folded along a diametric axis for insertion into the body passage. The clamping ring is adapted to resiliently spring outwardly, once in position inside the body passage, and to be continually resiliently biased against the interior surface of the body passage. One or more of the clamping rings may be attached to opposed ends of a tubular graft. The rings and connected graft may be positioned in the body passage using a applicator which selectively permits expansion and/or in some embodiments contraction of the annular ring in position within a body passage. Alternatively a retaining member may be used to retain the annular ring in a compressed condition until it is in a desired position within a body passage. Among other potential uses, the present invention may be useful as a vascular stent for treating abdominal aortic aneurysms.
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Citations
60 Claims
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1-5. -5 (Canceled)
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10. (Canceled)
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12-46. -46 (Canceled)
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47. A prosthetic device comprising;
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a prosthetic heart valve;
a flexible tubular graft having a first end connectable to said valve and a second end; and
a deformable, resilient annular ring connected to said second end and arranged to connect said graft to the interior surface of a portion of the ascending aorta. - View Dependent Claims (59)
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- 48. A prosthesis for insertion into a body passage comprising at least two annular resilient elements and a flexible tubular graft attached to each of said elements and a rigid member longitudinally connected said element, said member being less flexible than said graft.
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50-51. -51 (Canceled)
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52. A prosthetic device comprising:
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an annular, resilient element formed by overlapping a plurality of windings of wire radially on top of one another around a common core, said windings connected to form a bundle; and
a graft connected to said element. - View Dependent Claims (6, 7, 8, 9, 11, 53, 54, 55, 56, 57, 58)
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Specification