VASO-OCCLUSIVE DEVICE DELIVERY SYSTEM

摘要

A vaso-occlusive device delivery assembly includes a pusher assembly and a vaso-occlusive device detachably coupled to the pusher assembly by an attachment member is frictionally secured within a lumen of the pusher assembly. A heat generating member is disposed in the pusher assembly lumen, along with a pressure generating material, such that, when heat is generated by the heat generative device, the pressure generating material increases a pressure in the pusher assembly lumen, thereby dislodging the attachment member from the pusher assembly and detaching the vaso-occlusive device from the pusher assembly.

主权项

1. A vaso-occlusive device delivery assembly, comprising:
a pusher assembly including a substantially fluid tight pressure chamber in a distal end portion thereof; a thermally activated pressure generating material disposed in the pressure chamber; a heat generating member at least partially disposed in the pressure chamber; a vaso-occlusive device detachably coupled to the pusher assembly distal of the pressure chamber, wherein the pressure generating material, when heated by the heat generating member, increases a pressure in the pressure chamber, thereby detaching the vaso-occlusive device from the pusher assembly.