Filamentary devices for treatment of vascular defects
First Claim
1. A device for treatment of a patients cerebral aneurysm, comprising:
- a resilient self-expanding permeable shell including a radially constrained elongated state configured for delivery within a catheter lumen, an expanded state with a globular and longitudinally shortened configuration relative to the radially constrained state, and a plurality of elongate filaments which are woven together and define a cavity of the permeable shell, the plurality of filaments having a total cross sectional area and wherein the permeable shell has at least about 40% composite filaments relative to a total number of filaments, wherein the composite filaments comprise drawn filled tube wires having a transverse dimension of between 0.00075″ and
0.00125″ and
comprise an external nitinol tube surrounding platinum concentrically disposed within the external nitinol tube, wherein the total number of filaments is about 70 to about 300, and wherein a total cross sectional area of the platinum is between about 11% and about 30% of a total cross sectional area of the plurality of elongate elements.
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Accused Products
Abstract
Devices for treatment of a cerebral aneurysm are described. Embodiments may include a self-expanding permeable shell having a radially constrained elongated state configured for delivery within a catheter lumen, an expanded state with a globular and longitudinally shortened configuration relative to the radially constrained state, and a plurality of elongate filaments that are woven together, which define a cavity of the permeable shell. The permeable shell includes composite filaments. The composite filaments include drawn filled tube wires have an external nitinol tube surrounding platinum concentrically disposed within the external nitinol tube. The composite filaments may have a diameter of between 0.00075″ and 0.00125″.
370 Citations
17 Claims
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1. A device for treatment of a patients cerebral aneurysm, comprising:
a resilient self-expanding permeable shell including a radially constrained elongated state configured for delivery within a catheter lumen, an expanded state with a globular and longitudinally shortened configuration relative to the radially constrained state, and a plurality of elongate filaments which are woven together and define a cavity of the permeable shell, the plurality of filaments having a total cross sectional area and wherein the permeable shell has at least about 40% composite filaments relative to a total number of filaments, wherein the composite filaments comprise drawn filled tube wires having a transverse dimension of between 0.00075″ and
0.00125″ and
comprise an external nitinol tube surrounding platinum concentrically disposed within the external nitinol tube, wherein the total number of filaments is about 70 to about 300, and wherein a total cross sectional area of the platinum is between about 11% and about 30% of a total cross sectional area of the plurality of elongate elements.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
Specification