Three dimensional spherical micro-coils manufactured from radiopaque nickel-titanium microstrand
First Claim
1. A device for use in interventional therapy and vascular surgery, adapted to be inserted into a portion of a vasculature, comprising:
- at least one multi-stranded micro-cable having a collapsed primary coil configuration and an expanded secondary configuration with a three dimensional shape, each said multi-stranded micro-cable having a plurality of flexible strands of a shape memory material, and at least one radiopaque strand to provide a radiopaque marker of the deployed configuration of the device.
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Accused Products
Abstract
The three dimensional device is adapted to be inserted into a portion of a vasculature for occluding the portion of the vasculature for use in interventional therapy and vascular surgery. The device is formed from a multi-stranded microcable having a plurality of flexible strands of a shape memory material and at least one radiopaque strand. The flexible strands in a multi-stranded micro-cable of the device can be helically wound, or can be configured as parallel, longitudinal strands, and can also be formed to have a secondary, three dimensional therapeutic configuration, such as helical, conical, spherical, or other geometric shapes. The strands can be made of a shape memory nickel titanium alloy, that is highly flexible at a temperature appropriate for introduction into the body via a catheter, and that after placement will take on the therapeutic shape. The device can also include a therapeutic agent, and can be bundled by an outer cover to constrain the strands of the micro-cable about a longitudinal axis to produce a composite banded cable.
232 Citations
163 Claims
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1. A device for use in interventional therapy and vascular surgery, adapted to be inserted into a portion of a vasculature, comprising:
at least one multi-stranded micro-cable having a collapsed primary coil configuration and an expanded secondary configuration with a three dimensional shape, each said multi-stranded micro-cable having a plurality of flexible strands of a shape memory material, and at least one radiopaque strand to provide a radiopaque marker of the deployed configuration of the device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72)
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73. A composite device for use in interventional therapy and vascular surgery adapted to be inserted into a portion of a vasculature, comprising:
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at least one multi-stranded micro-cable having a collapsed primary coil configuration and an expanded configuration with a secondary three dimensional shape, each said multi-stranded micro-cable having a plurality of flexible strands of a shape memory material, and at least one radiopaque strand to provide a radiopaque marker of the deployed configuration of a device made of the micro-cable; and at least one outer cover disposed over each said multi-stranded micro-cable to produce a composite banded cable. - View Dependent Claims (74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119)
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120. A three dimensional composite device having a collapsed coil configuration with a primary shape and an expanded coil configuration with a secondary three dimensional shape for use in interventional therapy and vascular surgery, the device adapted to be inserted into a portion of a vasculature for occluding the portion of the vasculature, comprising:
a plurality of multi-stranded micro-cables having a collapsed coil configuration with a primary shape and an expanded coil configuration with a secondary three dimensional shape, each said multi-stranded micro-cable having a plurality of flexible strands of a shape memory material, and at least one said strand being a radiopaque strand to provide a radiopaque marker of the deployed configuration of a device made of the cable during vascular surgery. - View Dependent Claims (121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162)
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163. A composite micro-cable for use in interventional therapy comprising:
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at least one longitudinal strand made of a radiopaque material; at least one longitudinal strand made of a flexible shape memory material; and at least one strand of a therapeutic material which extends beyond the diameter of the other strands in the micro-cable along the length of the cable.
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Specification