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
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61M-029/00
A61B-017/12
C22F-001/00
A61F-002/86
A61H-023/00
A61N-005/06
A61B-017/00
A61F-002/82
A61F-002/91
A61F-002/95
A61F-002/30
출원번호
US-0622250
(2015-02-13)
등록번호
US-9486224
(2016-11-08)
발명자
/ 주소
Riina, Howard
Milsom, Jeffrey
Cornhill, J. Frederick
Nguyen, Tuan Anh
Smith, Kevin
Keough, Kevin
Andrews, Robert
출원인 / 주소
Cornell University
대리인 / 주소
Pandiscio & Pandiscio
인용정보
피인용 횟수 :
0인용 특허 :
135
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 device for positioning in a blood vessel adjacent to an aneurysm for causing thrombosis of the aneurysm while maintaining substantially normal flow through the blood vessel, said device comprising: a single elastic filament configurable between:(i) an elongated, substantially linear configurati
1. A device for positioning in a blood vessel adjacent to an aneurysm for causing thrombosis of the aneurysm while maintaining substantially normal flow through the blood vessel, said device comprising: a single elastic filament configurable between:(i) an elongated, substantially linear configuration, whereby to facilitate movement along a blood vessel; and(ii) a longitudinally-contracted, substantially three-dimensional configuration for lodging within the blood vessel, said longitudinally-contracted, substantially three-dimensional configuration providing (a) a face for positioning adjacent the aneurysm, said face comprising a plurality of lengths of said elastic filament in close proximity to one another so as to restrict blood flow to the aneurysm and thereby cause thrombosis of the aneurysm, and (b) a substantially open frame for holding said face adjacent the aneurysm, said substantially open frame configured so as to maintain substantially normal flow through the blood vessel;wherein said single elastic filament is formed from a sheet of shape memory material;wherein said single elastic filament is formed from the sheet of shape memory material so as to provide the single elastic filament with has a width which varies along its length a cross-section which varies along its length;wherein said single elastic filament comprises a continuous closed loop. 2. A device according to claim 1 wherein the single elastic filament comprises two distinct ends which are unified so as to form a continuous closed loop. 3. A device according to claim 2 wherein the two distinct ends are unified by welding. 4. A device according to claim 2 wherein the two distinct ends are unified by banding. 5. A device according to claim 1 wherein the single elastic filament has a rectangular cross-section along at least a portion of its length.
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