Mechanically datachable vaso-occlusive device

摘要

A device for delivering an occlusive element includes an elongate pusher member having a lumen extending between distal and proximal ends. An elongate releasing member is slideably disposed within the lumen of the elongate pusher member. A retaining member is disposed on the distal end of the elongate pusher member and includes a finger portion having an aperture sized to receive the distal end of the elongate releasing member. An occlusive element such as a coil is provided and includes a securing member positioned at a proximal end thereof. The securing member is releaseably secured to the finger portion of the retaining member. The securing member is secured to the finger portion when the elongate releasing member is disposed in the aperture of the finger portion and unsecured when the elongate releasing member is retracted proximally from the aperture of the finger portion.

主权项

1. A system, comprising:
an elongate pusher member having a distal end and a proximal end and a lumen extending between the distal and proximal ends; an elongate filament having a distal end and a proximal end, the elongate filament being slidable within the lumen of the elongate pusher member; a clasp disposed on the distal end of the elongate pusher member, the clasp having a recess, an angled surface within the recess, and an aperture sized to receive the distal end of the elongate filament; and an occlusive element including a loop positioned at a proximal end of the occlusive element, wherein the loop is secured to the clasp and bears upon the angled surface within the recess when the elongate filament is disposed in the aperture of the clasp, and is unsecured and slides along the angled surface to exit the recess when the elongate filament is retracted proximally from the aperture of the clasp.