[미국특허]
Method and apparatus for restricting flow through an opening in the side wall of a body lumen, and/or for reinforcing a weakness in the side wall of a body lumen, while still maintaining substantially normal flow through the body lumen
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C22F-001/18
A61F-002/86
A61N-005/06
C22F-001/00
A61B-017/12
A61H-023/00
A61B-017/00
A61F-002/82
A61F-002/91
A61F-002/95
A61F-002/30
출원번호
US-0437777
(2012-04-02)
등록번호
US-8956475
(2015-02-17)
발명자
/ 주소
Riina, Howard
Milsom, Jeffrey
Cornhill, J. Frederick
Nguyen, Tuan Anh
Smith, Kevin
Keough, Kevin
Andrews, Robert
출원인 / 주소
Riina, Howard
대리인 / 주소
Pandiscio & Pandiscio
인용정보
피인용 횟수 :
0인용 특허 :
126
초록▼
A method for making a device for causing thrombosis of an aneurysm, wherein said device comprises a single elastic filament configurable between (i) an elongated, substantially linear configuration, and (ii) a longitudinally-contracted, substantially three-dimensional configuration, said method comp
A method for making a device for causing thrombosis of an aneurysm, wherein said device comprises a single elastic filament configurable between (i) an elongated, substantially linear configuration, and (ii) a longitudinally-contracted, substantially three-dimensional configuration, said method comprising: providing a sheet of shape memory material;producing a single filament, two-dimensional interim structure from said sheet of shape memory material;mounting said single filament, two-dimensional interim structure to a fixture so that said single filament, two-dimensional interim structure is transformed into said longitudinally-contracted, substantially three-dimensional configuration; andheat treating said single filament, two-dimensional interim structure while it is mounted to said fixture so as to produce said device in its longitudinally-contracted, substantially three-dimensional configuration.
대표청구항▼
1. A method for making a device for causing thrombosis of an aneurysm, wherein said device comprises a single elastic filament configurable between (i) an elongated, substantially linear configuration, and (ii) a longitudinally-contracted, substantially three-dimensional configuration, said method c
1. A method for making a device for causing thrombosis of an aneurysm, wherein said device comprises a single elastic filament configurable between (i) an elongated, substantially linear configuration, and (ii) a longitudinally-contracted, substantially three-dimensional configuration, said method comprising: providing a sheet of shape memory material;producing a single filament, two-dimensional interim structure from said sheet of shape memory material, wherein said single filament, two-dimensional interim structure is temporarily held to said sheet of shape memory material by an attachment tab;mounting said single filament, two-dimensional interim structure to a fixture so that said single filament, two-dimensional interim structure is transformed into said longitudinally-contracted, substantially three-dimensional configuration; andheat treating said single filament, two-dimensional interim structure while it is mounted to said fixture so as to produce said single elastic filament in its longitudinally-contracted, substantially three-dimensional configuration. 2. A method according to claim 1 wherein said single filament, two-dimensional interim structure is produced from said sheet of shape memory material by etching. 3. A method according to claim 1 wherein said single filament, two-dimensional interim structure is produced from said sheet of shape memory material by laser cutting. 4. A method according to claim 1 further comprising the step of electro-polishing said single filament, two-dimensional interim structure before it is mounted to said fixture. 5. A method according to claim 4 wherein said step of electro-polishing said single filament, two-dimensional interim structure is performed while said single filament, two-dimensional interim structure is still attached to said sheet of shape memory material. 6. A method according to claim 1 wherein said fixture comprises a three-dimensional body. 7. A method according to claim 6 wherein said three-dimensional body comprises surface features for releasably retaining said single filament, two-dimensional interim structure on said three-dimensional body. 8. A method according to claim 7 wherein said surface features comprise posts mounted to said three-dimensional body. 9. A method according to claim 1 wherein said fixture comprises a two part fixture comprising a male half and a female half. 10. A method according to claim 9 wherein said male half of said fixture comprises surface features for releasably retaining said single filament, two-dimensional interim structure on said male half of said fixture. 11. A method according to claim 9 wherein said surface features comprise posts mounted to said male half of said fixture. 12. A method according to claim 1 wherein said step of heat treating comprises heating followed by quenching. 13. A method according to claim 1 wherein said single filament, two-dimensional interim structure comprises a continuous closed loop. 14. A method according to claim 1 wherein said single filament, two-dimensional interim structure comprises two distinct ends. 15. A method according to claim 14 comprising the additional step of unifying the two distinct ends so as to form a continuous closed loop. 16. A method according to claim 15 wherein the two distinct ends are unified by welding. 17. A method according to claim 15 wherein the two distinct ends are unified by banding. 18. A method according to claim 1 wherein a plurality of single filament, two-dimensional interim structures are produced from said sheet of shape memory material. 19. A method according to claim 1 wherein said single filament, two-dimensional interim structure is released from said sheet of shape memory material by severing said attachment tab. 20. A method according to claim 1 wherein said single filament, two-dimensional interim structure has a width which varies along its length. 21. A method according to claim 1 wherein said single filament, two-dimensional interim structure has a thickness which varies along its length. 22. A method according to claim 1 wherein said single filament, two-dimensional interim structure has a cross-section which varies along its length. 23. A method according to claim 1 wherein said single filament, two-dimensional interim structure comprises a cross-section comprising flat edges. 24. A method according to claim 1 wherein said single filament, two-dimensional interim structure comprises a cross-section comprising flat edges and rounded edges. 25. A method according to claim 1 wherein said single filament, two-dimensional interim structure comprises a cross-section which is circular. 26. A method according to claim 1 wherein said single filament, two-dimensional interim structure comprises a cross-section which is ovoid. 27. A method according to claim 1 wherein said sheet of shape memory material has different material properties in different dimensions. 28. A method according to claim 1 wherein the shape memory material is selected from the group consisting of: a nickel titanium alloy, a copper-based alloy, an iron-based alloy, and a shape memory polymer. 29. A method according to claim 28 wherein the nickel titanium alloy comprises nitinol. 30. A method for making a device for causing thrombosis of an aneurysm, wherein said device comprises a single elastic filament configurable between (i) an elongated, substantially linear configuration, and (ii) a longitudinally-contracted, substantially three-dimensional configuration, said method comprising: providing a filament of shape memory material, wherein said filament is produced from a sheet of shape memory material, and further wherein said filament is temporarily held to the sheet of shape memory material by an attachment tab;mounting said filament of shape memory material to a fixture so that said filament is transformed into said longitudinally-contracted, substantially three-dimensional configuration; andheat treating said filament so as to produce said single elastic filament in its longitudinally-contracted, substantially three-dimensional configuration. 31. A method according to claim 30 wherein said fixture comprises a three-dimensional body having surface features for releasably retaining said filament of shape memory material on said three-dimensional body, and further wherein mounting said filament of shape memory material to said fixture comprises winding said filament of shape memory material around said surface features. 32. A method according to claim 31 wherein said surface features comprise posts mounted to said three-dimensional body.
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