Buttoned device for the transvenous occlusion of intracardiac defects

Claim 1

An intracardiac percutaneously deliverable device for the repair of heart defects comprizing a pair of cooperating foldable members each comprising a wire skeleton and polyurethane foam, and a loading wire (28) including a hollow wire (30), characterized in that the first of said cooperating foldable members is an occluder (10), said occluder including: i. a foldable foam polyurethane disk (16) with ii. polytetrafluorethylene coated wire skeleton (12) in the form of an "X" sutured to the foam disk, and iii. a thread (14) sutured to the center of the wire skeleton, iv. said thread formed into a loop with v. a knot (18) closing the loop remote from the skeleton, whereas the second of said cooperating foldable members is an occluder-holder (20), said occluder-holder including: i. a foldable foam polyurethane rhomboid disc with ii. a single wire skeleton sutured to the rhomboid disc, and iii. a rubber piece (24) sutured at the center of the rhomboid disc, said loading wire (28) including: i. a polytetrafluorethylene coated hollow wire (30), and ii. a long thread, said loading wire (30) being capable of being pierced through an opening in the occluder-holder in its rubber piece, said long thread extending i. through the hollow wire, ii. through the thread loop of the occluder, and iii. back through the hollow wire; so arranged and constructed that i. the occluder-holder (20) may be pushed by an end-hole catheter (34) along the loading wire (28) towards the occluder (10) at the distal end of the said loading wire (28) and ii. pulling on the loading wire while holding catheter (34) in a counteracting manner will pull the knot (18) through the rubber piece (24) of the occluder-holder(20) thereby iii. buttoning the occluder (10) to the occluder holder (20).