Patent ID: 6190373
Filing Date: 2001-02-20
Classification: A61B,A61F

Abstract:
A device for placing an embolic coil at a target site in the body, comprising:(a) a vasoocclusive coil having a proximal end and a distal end and having an enlarged member with a diameter, the enlarged member fixedly attached to the coil's proximal end;(b) a pusher housing having a distal end and having a distendable aperture at its distal end, the distendable aperture having a constant inner diameter which is smaller than the diameter of the enlarged member within which the enlarged member is held; and(c) a guidewire having a proximal end and a distal end and located within the pusher housing, the guidewire axially movable relative to the pusher housing and coil from a first position to a second position, which axial movement pushes the coil and the enlarged member through the distendable aperture and thus uncouple the coil from the pusher housing.