A - Human Necessities – 61 – L
Patent
A - Human Necessities
61
L
A61L 31/14 (2006.01) A61B 17/86 (2006.01) A61C 7/00 (2006.01) A61K 6/04 (2006.01) A61L 27/04 (2006.01) A61L 27/06 (2006.01) A61L 27/50 (2006.01) A61L 29/02 (2006.01) A61L 29/14 (2006.01) A61L 31/02 (2006.01) C22C 23/00 (2006.01) C22F 1/00 (2006.01) A61B 17/00 (2006.01) A61B 17/064 (2006.01) A61B 17/80 (2006.01) A61F 2/00 (2006.01) A61F 2/06 (2006.01)
Patent
CA 2379705
Fabrication of metal medical instruments and devices from a shape memory alloy which provides greater flexibility in design and avoids the need for substantial cold working of the alloy which is required in other methods. The new process provides a ductile alloy for ease of forming and a unique heat treatment which renders the fabricated orthodontic and medical components highly elastic, with a high resistance to kinking and with good corrosion resistance. In addition, this new process produces orthodontic and medical components useful over the temperature range of from -20 to +40 degrees C.
L'invention concerne la fabrication d'instruments et de dispositifs médicaux à partir d'un alliage à mémoire de forme qui permet une souplesse de conception plus grande et supprime le besoin d'écrouissage sensible nécessaire dans les autres procédés. Le nouveau procédé de l'invention consiste à utiliser un alliage ductile qui facilite le formage et un traitement thermique unique qui rend les composants orthodontiques et médicaux hautement élastiques, leur confère une résistance élevée à la formation de faux pli et à la corrosion. Par ailleurs, le procédé de l'invention permet la production de composants orthodontiques et médicaux utiles sur une plage de températures de -20 à +40 degrés C.
Schetky L. Mcdonald
Serneels Anja
Van Moorleghem Wilfried
Memry Corporation
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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