Occluder for repair of cardiac and vascular defects
First Claim
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1. A device for percutaneous transluminal repair of septal defects comprising:
- a first occluder having an initial cross sectional configuration smaller than that of the defect to be repaired and a second expanded configuration larger than that of the defect;
a second occluder having an initial cross sectional configuration smaller than that of the defect to be repaired and a second expanded configuration larger than that of the defect; and
a connector for fastening the first occluder to the second occluder;
at least one of said first occluder or said second occluder including a framework comprising a central hub having a plurality of elongated struts radiating therefrom;
wherein at least one of said struts has at least three flexural hinge points and at least one end loop, said flexural hinge points including a shoulder flexural hinge point, an elbow flexural hinge point and at least one flexural hinge point located between the end loop and the elbow flexural hinge point.
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Abstract
A device for the percutaneous transluminal repair of septal defects is disclosed. The device comprises first and second expandable occluders fastened to each other, each occluder including a framework having a central hub with elongated struts radiating therefrom. The struts are constructed such that they have a resistance to fatigue that exceeds the maximum fatigue stresses to which the struts will be subjected over a prolonged period in vivo. As such, the device exhibits a significantly decreased likelihood of metal fatigue failures after prolonged exposure in vivo.
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Citations
80 Claims
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1. A device for percutaneous transluminal repair of septal defects comprising:
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a first occluder having an initial cross sectional configuration smaller than that of the defect to be repaired and a second expanded configuration larger than that of the defect; a second occluder having an initial cross sectional configuration smaller than that of the defect to be repaired and a second expanded configuration larger than that of the defect; and a connector for fastening the first occluder to the second occluder; at least one of said first occluder or said second occluder including a framework comprising a central hub having a plurality of elongated struts radiating therefrom; wherein at least one of said struts has at least three flexural hinge points and at least one end loop, said flexural hinge points including a shoulder flexural hinge point, an elbow flexural hinge point and at least one flexural hinge point located between the end loop and the elbow flexural hinge point. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A device for percutaneous transluminal repair of septal defects comprising:
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a first occluder having an initial cross sectional configuration smaller than that of the defect to be repaired and a second expanded configuration larger than that of the defect; a second occluder having an initial cross sectional configuration smaller than that of the defect to be repaired and a second expanded configuration larger than that of the defect; and a connector for fastening the first occluder to the second occluder; each of the first occluder and second occluder comprising a framework having a central hub with a plurality of elongated struts radiating therefrom; the framework fabricated of a wire having a square, rectangular, round, trapezoidal or triangular cross section and having a metallic alloy composition comprising nickel, cobalt, chromium and molybdenum; each of said elongated struts further including three flexural hinge points and an end loop, said flexural hinge points including a shoulder flexural hinge point, an elbow flexural hinge point and a flexural hinge point located between the end loop and the elbow flexural hinge point. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A device for percutaneous transluminal repair of septal detects comprising:
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a first occluder having an initial cross sectional configuration smaller than that of the defect to be repaired and a second expanded configuration larger than that of the defect; a second occluder having an initial cross sectional configuration smaller than that of the defect to be repaired and a second expanded configuration larger than that of the defect; and a connector for fastening the first occluder to the second occluder; each of the first occluder and second occluder comprising a framework having a central hub with a plurality of elongated struts radiating therefrom; each of said elongated struts further including three flexural hinge points and an end loop, said flexural hinge points including a shoulder flexural hinge point, an elbow flexural hinge point and a flexural hinge point between the elbow flexural hinge point and the end loop. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56)
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57. A device for percutaneous transluminal repair of septal detects comprising:
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a first occluder having an initial cross sectional configuration smaller than that of the defect to be repaired and a second expanded configuration larger than that of the defect; a second occluder having an initial cross sectional configuration smaller than that of the defect to be repaired and a second expanded configuration larger than that of the defect; and a connector for fastening the first occluder to the second occluder; each of the first occluder and second occluder comprising a framework having a central hub with a plurality of elongated struts radiating therefrom; the framework fabricated of a wire having a square, rectangular, round, trapezoidal or triangular cross section; each of said elongated struts further including three flexural hinge points and an end loop, said flexural hinge points including a shoulder flexural hinge point, an elbow flexural hinge point and a flexural hinge point between the elbow flexural hinge point and the end loop. - View Dependent Claims (58, 59, 60, 61, 62, 63, 64, 65, 66)
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67. A device for percutaneous transluminal repair of septal defects comprising:
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a first occluder having an initial cross sectional configuration smaller than that of the defect to be repaired and a second expanded configuration larger than that of the defect; a second occluder having an initial cross sectional configuration smaller than that of the defect to be repaired and a second expanded configuration larger than that of the defect; and a connector for fastening the first occluder to the second occluder; each of the first occluder and second occluder comprising a framework having a central hub with a plurality of elongated struts radiating therefrom; the framework fabricated of a wire having a metallic alloy composition comprising nickel, cobalt, chromium and molybdenum; each of said elongated struts further including three flexural hinge points, wherein at least one of said struts has at least one end loop, said flexural hinge points including a shoulder flexural hinge point, an elbow flexural hinge point and a flexural hinge point located between the end loop and the elbow flexural hinge point. - View Dependent Claims (68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80)
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Specification