Neurovascular embolization: In vitro evaluation of a mechanical detachableplatinum coil system

The authors evaluated a mechanically detachable platinum coil system intend ed for neurovascular use. The introduction characteristics, ease of deliver y, ease of retrieval, and detachability were studied with fluoroscopic guid ance with in vitro silicone models. All the coils passed easily through the microcatheter, The detachment maneuver occurred within 20 seconds with 20 or fewer rotations of the pusher wire. One of 229 coils detached prematurel y but only after deliberate and extreme manipulation. The detachment system is safe, reliable, and consistent and will be useful for interventional ne uroradiologists.