Patent ID: 8216292

Claim:
A vascular occlusion device deployment system, comprising: a vascular occlusion device having a protruding portion; a deployment unit comprising a pusher having a proximal end portion and a distal end portion; an expandable gripper located at the distal end portion of the pusher, said gripper including an outwardly expandable gripping element for gripping the protruding portion of the vascular occlusion device; an expandable reaction chamber located at least partially within said gripper, said chamber including a first sub-chamber and a second sub-chamber separated by a heat dissolvable membrane; a first reactant housed within the first sub-chamber and a second reactant housed within the second sub-chamber, said reaction chamber expanding when said first and second reactants react; a heat generating system that is capable of dissolving the heat dissolving membrane, allowing the first and second reactants to react; and whereby the expansion of the chamber causes the gripper to outwardly expand, releasing the protruding portion of the vascular occlusion device.