Patent ID: 7780695

Claim:
A vascular occlusion deployment system, comprising: a deployment unit comprising a pusher having a longitudinal axis, a proximal end portion and a distal end portion with a distal opening, said pusher including an inner wall at least partially defining a cavity proximal of said distal opening, said cavity having an expandable wall within the pusher and proximal the distal opening; a vascular occlusion device having a protruding portion removeably disposed within the distal opening; a first reactant and a second reactant located within the cavity proximal the expandable wall of the cavity; and a frangible wall separating said first and second reactants wherein said frangible wall is capable of being breached to allow said first reactant and second reactant to mix forming a product that expands in the direction of the pusher longitudinal axis and toward the distal opening, said expanding product causing the expandable wall to expand in the direction of the pusher longitudinal axis and toward the distal opening, whereby the expandable wall applies an axial pushing force to the protruding portion of the vascular occlusion device so that the protruding portion is removed from the distal opening, thereby deploying the vascular occlusion device; and an element for breaching the frangible wall.