Electrolytic vaso-occlusive device with improved deliverability and enhanced mri follow-up
AssigneesStryker Corporation, Stryker European Operations Limited
InventorsHancun Chen, Andrew S. Lee, Jimmy Dao
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Abstract
A vaso-occlusive assembly comprises a vaso-occlusive device configured for implantation in an aneurysmal sac, the vaso-occlusive device 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. The vaso-occlusive assembly further comprises a delivery wire having a distal end to which the vaso-occlusive device is affixed. The delivery wire has an electrolytically severable joint proximal to the vaso-occlusive device. At least a portion of the electrolytically severable joint is composed of molybdenum (Mo) or an alloy thereof.
Claims20
A vaso-occlusive assembly, comprising:
- a vaso-occlusive device configured for implantation in an aneurysmal sac, the vaso-occlusive device 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;
- and
- a delivery wire having a distal end to which the vaso-occlusive device is affixed, the delivery wire having an electrolytically severable joint proximal to the vaso-occlusive device, the electrolytically severable joint being composed of molybdenum (Mo) or an alloy thereof, the alloy having at least one of a Young's modulus greater than 35 Msi, a mechanical strength greater than 400 Ksi, and a magnetic susceptibility less than 300.
Dependencies are inferred from the claim text.