Integrated anchor coil in stretch-resistant vaso-occlusive coils
First Claim
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1. A vaso-occlusive device, comprising:
- a primary coil having a proximal end, a distal end, and a lumen, the primary coil comprising windings;
a stretch-resisting member extending through at least a portion of the coil lumen and being coupled to the primary coil; and
an anchor assembly fixedly coupled with the primary coil, the anchor assembly comprising an anchor coil having windings inter-wound between the primary coil windings, wherein the primary coil and anchor coil have approximately the same diameter.
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Abstract
Vaso-occlusive devices are provided for occluding an aneurysm within the human vasculature. The vaso-occlusive device also includes a stretch-resisting member that extends through at least a portion of a lumen of the primary coil and is directly or indirectly attached to the primary coil at two locations axially separated from each other to prevent or minimize axial stretching of the primary coil. At one location, the stretch-resisting member is coupled to the primary coil via a flexible anchor assembly disposed within the lumen. The anchor coil is incorporated into the primary coil by disposing the anchor coil windings between the windings of the primary coil.
103 Citations
29 Claims
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1. A vaso-occlusive device, comprising:
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a primary coil having a proximal end, a distal end, and a lumen, the primary coil comprising windings; a stretch-resisting member extending through at least a portion of the coil lumen and being coupled to the primary coil; and an anchor assembly fixedly coupled with the primary coil, the anchor assembly comprising an anchor coil having windings inter-wound between the primary coil windings, wherein the primary coil and anchor coil have approximately the same diameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A catheter assembly for occluding a body cavity comprising:
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a delivery device having a distal end; and a vaso-occlusive device associated with the distal end of the delivery device, the vaso-occlusive device comprising; a primary coil having a proximal end, a distal end, and a lumen, the primary coil comprising windings; a stretch-resisting member extending through at least a portion of the coil lumen and being coupled to the primary coil; and an anchor assembly fixedly coupled with the primary coil, the anchor assembly comprising an anchor coil having windings inter-wound between the primary coil windings, wherein the primary coil and anchor coil have approximately the same diameter. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification