A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
A61F 2/56 (2006.01) A61F 2/58 (2006.01) A61F 2/68 (2006.01) A61F 2/72 (2006.01) B25J 15/00 (2006.01) A61F 2/00 (2006.01) A61F 2/70 (2006.01)
Patent
CA 2371919
A movable finger for prostheses, having a base (1) disposed between the back and the palm of a hand, a first intermediate portion (3) connected to the base (1) a second intermediate portion (5) connected to the first intermediate portion (3), and a fingertip (7) connected to the second intermediate portion (5), comprises: a first intermediate portion bending mechanism (22) for actuating an actuator (12) disposed in the base (1) to pull a first wire (11) to turn an eccentric member (17), pulling and bending the first intermediate portion (3) by the eccentric member (17) through a first intermediate portion pulling spring (19), and straightening it by a first intermediate portion straightening spring (21); a second intermediate portion bending mechanism (30) for pulling a second wire (23) wound around a pulley (24) disposed as a movable pulley in the first intermediate portion by the eccentric member (17), pulling and bending the second intermediate portion (5) by a third wire (27) connected to the pulley (24) and straightening it by a second intermediate portion straightening spring (29); and a fingertip bending mechanism (36) for pulling and bending a fingertip (7) by a fourth wire (32) connected to the first intermediate portion (3), and pulling and straightening it by a fifth wire (34), which is connected to the first intermediate portion (3) and drawn around through a route different from that of the fourth wire (32).
L'invention concerne un doigt mobile pour prothèses, doté, entre autres, d'une base (1) placée entre le dos de la main et la paume, et comprenant un premier mécanisme de flexion intermédiaire (22) pour actionner un actionneur (12), de sorte qu'il tire un premier fil (11) pour faire tourner un élément excentrique (17), lequel plie une première partie intermédiaire (3) au moyen d'un premier ressort intermédiaire (19) et le redresse au moyen d'un premier ressort intermédiaire (21). Ledit doigt comprend également un second mécanisme de flexion intermédiaire (30) qui tire un deuxième fil (23) passant dans une poulie (24), au moyen de l'élément excentrique (17), de sorte que la deuxième partie intermédiaire (5) soit pliée par un troisième fil (27) relié à la poulie (24) et soit redressée par un deuxième ressort intermédiaire (29), et un mécanisme de flexion de la pointe du doigt (36) pour plier une extrémité de doigt (7) au moyen d'un quatrième fil (32) relié à la première partie intermédiaire (3) et pour la redresser au moyen d'un cinquième fil (34) relié à la première partie intermédiaire (3).
Harada Masahide
Higuchi Tetsuya
Harada Electronics Co. Ltd.
Higuchi Tetsuya
National Institute Of Advanced Industrial Science And Technology
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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