Patent ID: 8277480

Claim:
A collapsible medical device for occluding an aperture in a body, the medical device having a first configuration as a reduced profile and a second configuration as an expanded profile, the medical device being adapted to be delivered through a delivery system into a desired delivery location, the medical device comprising: an occluder portion movable between the first and the second configuration, wherein the occluder portion comprises a proximal end, a distal end, and an axial passage between the proximal end and the distal end, the axial passage having an inner diameter: a catch member adapted to be disposed in the axial passage of the occluder portion, wherein the catch member comprises a catch body having a proximal portion and a distal flange, wherein the distal flange of the catch member engages the distal end of the occluder portion, wherein the catch body has a tapered or graduated cylindrical profile composed of a distal section having a first diameter D 1 and a proximal section having a second diameter D 2 joined by a sloped section, wherein diameter D 2 is similar to the inner diameter of the axial passage of the occlude portion; and, wherein the proximal portion of the catch body of the catch member further comprises two compressible prongs each comprising a proximal tip and a proximal ridge on the surface of the prong, wherein the proximal tip is adapted for connection to a delivery system; and the proximal ridge is adapted to pass through the axial passage of the occluder portion while the compressible prongs are held in a compressed position and to engage the proximal end of the occluder portion thereby holding the medical device in the second configuration.