Vaso-occlusive devices
AssigneesStryker Corporation, Stryker European Operations Limited
InventorsHancun Chen, Andrew S. Lee
Life of this patent
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Abstract
A vaso-occlusive device, includes: a vaso-occlusive structure configured for implantation in an aneurysm sac, the vaso-occlusive structure having a delivery configuration when restrained within a delivery catheter and having a deployed configuration when released from the delivery catheter into the aneurysmal sac, at least a portion of the vaso-occlusive structure being composed of a AuPtW (gold-platinum-tungsten) alloy; wherein the AuPtW alloy comprises platinum within a range between 25% and 40% by weight, and wherein the AuPtW alloy comprises tungsten within a range between 0.01% and 10% by weight.
Claims20
A vaso-occlusive device, comprising:
- a vaso-occlusive structure configured for implantation in an aneurysm sac, the vaso-occlusive structure having a delivery configuration when restrained within a delivery catheter and having a deployed configuration when released from the delivery catheter into the aneurysm sac, at least a portion of the vaso-occlusive structure being composed of a AuPtW (gold-platinum-tungsten) alloy;
- wherein the AuPtW alloy comprises Au having a weight WtAu, Pt having a weight WtPt, and W having a weight Wtw;
- wherein a first ratio calculated as Wtpt/(WtAu+Wtpt+Wtw) is anywhere between 0.25 and 0.4;
- and
- wherein a second ratio calculated as Wtw/(WtAu+Wtpt+Wtw) is less than 0.1.
Dependencies are inferred from the claim text.