Patent EA-002106-B1 (EA)
Title: Percutaneous catheter directed constricting occlusion device
Inventor: AMPLATZ KURT
IPC: A61B17/12
Filed: 1998-10-12
Abstract: 1. A collapsible medical device, comprising a tubular metal fabric including a plurality of woven metal strands having a proximal end and a distal end, each end having means for securing the metal fabric attached thereto, thereby inhibiting unraveling of the metal fabric, said metal fabric having a relaxed configuration having two enlarged diameter portions and an elastic central portion disposed between the two enlarged diameter portions, said device further having a collapsed configuration for delivery through a channel in a patient's body. 2. The device as recited in claim 1, wherein each enlarged diameter portion has an inner and outer wall such that the inner wall of at least one of the enlarged diameter portions is at least partially concave. 3. The device as recited in claim 1, wherein said elastic central portion is shaped to form a resilient portion to thereby pull the two enlarged diameter portions toward the other. 4. The device as recited in claim 1, wherein said elastic central portion is helically shaped to form a resilient portion to thereby pull the two enlarged diameter portions toward the other. 5. The device as recited in claim 1, wherein said elastic central portion is coiled to form a resilient portion to thereby pull the two enlarged diameter portions toward the other. 6. The device as recited in claim 1, wherein said elastic central portion is bent to form a resilient portion to thereby pull the two enlarged diameter portions toward the other. 7. The device as recited in claim 2, wherein said elastic central portion is shaped to form a resilient portion to thereby pull the two enlarged diameter portions toward the other. 8. The device as recited in claim 1, wherein a separation distance between the two enlarged diameter portions is less than a thickness of a patient's atrial septum. 9. The medical device as recited in claim 1, wherein an inner surface of a first enlarged diameter portion is at least partially concave and a length of the elastic central portion is dimensioned such that a perimeter edge of the first enlarged diameter portion overlaps a perimeter edge of a second enlarged diameter portion. 10. The medical device as recited in claim 1, said two enlarged diameter portions consisting of a first enlarged partially concave diameter portion and a second enlarged partially concave diameter portion. 11. The medical device as recited in claim 1, said two enlarged diameter portions consisting of a first enlarged diameter portion and a second enlarged diameter portion, wherein the elastic central portion may be flexed such that a first central axis of the first enlarged diameter portion is offset from a second central axis of the second enlarged diameter portion. 12. The medical device as recited in claim 1, wherein said means for securing includes means for attachment to a delivery device. 13. A collapsible medical device, comprising a tubular metal fabric including a plurality of woven metal strands having a proximal end and a distal end, each end having means for securing the metal fabric attached thereto, thereby inhibiting unraveling of the metal fabric, said metal fabric having a relaxed configuration having two enlarged diameter portions and a resilient portion disposed between the two enlarged diameter portions, said device further having a collapsed configuration for delivery through a channel in a patient's body. 14. The device as recited in claim 13, wherein each enlarged diameter portion has an inner and outer wall such that the inner wall of at least one of the enlarged diameter portions is at least partially concave. 15. The device as recited in claim 13, wherein said resilient portion is shaped to thereby pull the two enlarged diameter portions toward the other. 16. The device as recited in claim 13, wherein said resilient portion is helically shaped to thereby pull the two enlarged diameter portions toward the other. 17. The device as recited in claim 13, wherein said resilient portion is coiled to thereby pull the two enlarged diameter portions toward the other. 18. The device as recited in claim 13, wherein said resilient portion is bent to thereby pull the two enlarged diameter portions toward the other. 19. The medical device as recited in claim 13, said two enlarged diameter portions consisting of a first enlarged diameter portion and a second enlarged diameter portion, wherein the resilient portion may be flexed such that a first central axis of the first enlarged diameter portion is offset from a second central axis of the second enlarged diameter portion. 20. A collapsible medical device, comprising two enlarged diameter portions and an elastic central portion interconnecting the two enlarged diameter portions, said device having a proximal end and a distal end, wherein at least one of the proximal and distal end includes means for securing said device to a delivery system, said device having a collapsed configuration for delivery through a channel in a patient's body. 21. The device as recited in claim 20, wherein said device is formed from a continuous tubular metal fabric consisting of a plurality of woven metal strands. 22. The device as recited in claim 20, wherein each enlarged diameter portion has an inner and outer wall such that the inner wall of at least one of the enlarged diameter portions is at least partially concave. 23. The device as recited in claim 20, wherein said elastic central portion is shaped to form a resilient portion to thereby pull the two enlarged diameter portions toward the other. 24. The device as recited in claim 21, wherein said elastic central portion is shaped to form a resilient portion to thereby pull the two enlarged diameter portions toward the other. 25. The device as recited in claim 20, wherein a separation distance between the two enlarged diameter portions is less than a thickness of a patient's atrial septum. 26. The medical device as recited in claim 20, wherein an inner surface of a first enlarged diameter portion is at least partially concave and a length of the elastic central portion is dimensioned such that a perimeter edge of the first enlarged diameter portion overlaps a perimeter edge of a second enlarged diameter portion. 27. The medical device as recited in claim 20, wherein said means for securing includes means for attachment to a delivery device.