Parallel linkage and artificial joint device using the same

Details Parallel linkage and artificial joint device using the same Parallel linkage and artificial joint device using the same

A - Human Necessities

61

F

A61F 2/66 (2006.01) A61F 2/42 (2006.01) A61F 2/60 (2006.01) B25J 17/02 (2006.01) B25J 19/00 (2006.01) B62D 57/02 (2006.01) A61F 2/00 (2006.01) A61F 2/50 (2006.01) A61F 2/54 (2006.01) A61F 2/58 (2006.01) A61F 2/70 (2006.01) A61F 2/72 (2006.01) A61F 2/74 (2006.01)

Patent

CA 2419568

There are provided an artificial joint device that can realize an artificial limb enabling twisting motion without a drive source, and when with the drive source, reduce the size and costs of the device, and a parallel linkage that can realize the device. The linkage connects a foot portion and a mounting plate spaced from each other. A fixed link has one end fixed to the plate, and the other end connected to the foot portion via a ball joint, making the angle of the fixed link relative to the foot portion changeable in any direction. Expansible links extend between the foot portion and the plate in an expansible/contractible manner and each have opposite ends connected to the plate and the foot portion via respective upper and lower ball joints, making respective angles thereof relative to the foot portion and the plate changeable in any direction.

Articulation artificielle qui permet à un membre artificiel de réaliser une torsion sans source motrice et qui, lorsqu'elle est utilisée avec une source motrice, permet de réduire la taille et le coût de l'articulation. L'invention comprend aussi de la tringlerie parallèle pour réaliser l'articulation. La tringlerie relie un pied à une plaque de montage séparés l'un de l'autre. L'une des extrémités d'une tringle fixe est fixée à la plaque et l'autre extrémité est fixée au pied au moyen d'un joint à rotule, ce qui permet de modifier l'angle de la tringle fixe par rapport au pied sans égard à la direction. Des tringles expansibles qui vont du pied à la plaque peuvent prendre de l'expansion et se contracter, et chacune de leurs extrémités est fixée à la plaque et au pied au moyen de joints à rotule supérieurs et inférieurs, ce qui permet de modifier l'angle que chacune forme par rapport au pied et à la plaque, sans égard à la direction.

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