Patent ID: 7766935

Claim:
An occlusion device deployment system, comprising: a deployment catheter having a proximal end portion, a distal end portion, a lumen therethrough, a distal edge, and an interference surface along the distal end portion and spaced proximally from the distal edge; a hydraulic pressure located within the lumen of the deployment catheter; an occlusion device having a proximal end portion, said proximal end portion of the occlusion device removably disposed within the lumen of the deployment catheter; a deformable interference element located on the proximal end portion of the occlusion device, said deformable interference element transitioning from an initial configuration to a deformed configuration upon an increase in the hydraulic pressure within the lumen of the deployment catheter; said occlusion device including a relief area that accommodates the deformation of the deformable interference element; wherein the deformable interference element engages the interference surface on the deployment catheter to secure the proximal end portion of the occlusion device in the lumen of the deployment catheter when the deformable interference element is in the initial configuration; wherein the deformable interference element disengages the interference surface on the deployment catheter when the interference element is in the deformed configuration, allowing the proximal end portion of the occlusion device to be removed from the lumen of the deployment catheter; and the proximal end portion of the occlusion device comprises an occlusion device headpiece having a concave surface defining the relief area.