A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 17/72 (2006.01)
Patent
CA 2561155
An intramedullary nail (10, 110, 210, 310, 410, 510, 610) suitable for insertion in a fractured elongate bone (12), of the type comprising a stem (14, 114, 214, 314, 414, 514, 614) extended between a proximal end (16, 116, 216, 416, 516, 616) and a distal end (18, 118, 218, 418, 518, 618). The nail comprises a plurality of elements (20, 120 , 220, 320, 420, 520, 620) realised with at least one shape-memory material, a plurality of seats (19, 119, 219, 319, 419, 519, 619) formed in the stem (14, 114, 214, 314, 414, 514, 614) for housing the elements (20, 120 , 220, 320, 420, 520, 620). The elements (20, 120 , 220, 320, 420, 520, 620) are suitable to take a first shape wherein they are retractably housed in the respective seats (19, 119, 219, 319, 419, 519, 619) and a second shape wherein they project from the respective seats (19, 119, 219, 319, 419, 519, 619).
L'invention concerne un clou centromédullaire (10, 110, 210, 310, 410, 510, 610) qui peut être introduit dans un os allongé fracturé (12). Le clou centromédullaire est du type comprenant une tige (14, 114, 214, 314, 414, 514, 614) qui s'étend entre une extrémité proximale (16, 116, 216, 416, 516, 616) et une extrémité distale (18, 118, 218, 418, 518, 618). Le clou comprend une pluralité d'éléments (20, 120, 220, 320, 420, 520, 620) fabriqués avec au moins un matériau à mémoire de forme, ainsi qu'une pluralité de supports (19, 119, 219, 319, 419, 519, 619) formés dans la tige (14, 114, 214, 314, 414, 514, 614) pour contenir les éléments (20, 120, 220, 320, 420, 520, 620). Les éléments (20, 120, 220, 320, 420, 520, 620) peuvent adopter une première forme où ils sont logés de manière rétractable dans les supports respectifs (19, 119, 219, 319, 419, 519, 619), et une seconde forme où ils font saillie des supports respectifs (19, 119, 219, 319, 419, 519, 619).
Coati Michele
Marazzi Giancarlo
Marini Graziano
Rossi Graziano
Rossi Luigi
Norton Rose Or S.e.n.c.r.l.,s.r.l./llp
Orthofix S.r.l.
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