Systems and devices for cerebral aneurysm repair

摘要

An embolization device for treating ischemic stroke is disclosed, having a surface, wherein the body portion is configured to have a radiopaque and electropositive surface under physiological conditions when the device is emplaced, which ionically binds a blood component in an amount effective to promote stability of device in situ to bind to a tissue component in an amount effective to increase adhesion of the device as compared to a device without an electropositive surface. Embolic coils being so delivered are electrolytically detachable in under 10 seconds, according to the disclosed vascular implant systems.

主权项

1. A vascular implant system, comprising, in combination:
an implant assembly including an elongate pushing member having a proximal end and a distal end, an implant coupled to the distal end of the elongate pushing member, and an electrolytically detachable zone proximate the distal end of the elongate pushing member, the electrolytically detachable zone comprising a stainless steel wire having a diameter at the electrolytically detachable zone of between about 0.0015″ and about 0.0025″ and having an electrolytically detachable zone length of between about 0.002″ and 0.008″, wherein the implant is configured to be electrolytically detachable from elongate pushing member at the electrolytically detachable zone; an electrical power supply configured to electrically couple to the implant assembly at the proximal end of the elongate pushing member, the electrical power supply having a voltage of between about 11.5V and about 17.0V and configured to operate at a current between about 1.4 mA and about 2.4 mA, whereby electrolytic detachment is achieved in less than about 10 seconds.