Orthopaedic device for correcting deformities of long bones

Details Orthopaedic device for correcting deformities of long bones Orthopaedic device for correcting deformities of long bones

A - Human Necessities

61

B

A61B 17/66 (2006.01)

Patent

CA 2737032

Orthopaedic device (10, 110, 210, 310) for correcting deformities of a long bone (11)3 comprising a bar (12), extended along an axis (Y-Y) and intended to be placed alongside the bone (11), at least a first clamp (14, 214, 314) for a first group of osseous screws (16) and a second clamp (18, 19, 118) for a second group of osseous screws (20, 22), removably mounted on said bar (12), wherein the first of said clamps (14, 214, 314) is placed onboard a support base (21, 221, 321) in turn mounted on said bar (12), and angularly movable in relation to the support base around a given rotation axis (X-X5 XJ-XJ, Z-Z) by means of a rotary coupling, characterised in that said rotary coupling comprises a male element (35; 235, 236, 237, 238, 239; 333, 334) associated with the first clamp (14, 214, 314) and having a surface at least partially cylindrical, and a corresponding female element (36; 130; 250, 254, 255; 336, 337) associated with the support base (21, 221, 321) and having a surface at least partially cylindrical constituting a seat for the loose coupling of the male element (35; 235, 236, 237, 238, 239; 333, 334).

L'invention porte sur un dispositif orthopédique (10j, 110, 210, 310) destiné à corriger des déformations d'un os long (11), comprenant une barre (12) s'étendant le long d'un axe (Y-Y) et prévue pour être placée le long de l'os (11), au moins une première pince (14, 214, 314) pour un premier groupe de vis osseuses (16) et une seconde pince (18, 19, 118) pour un second groupe de vis osseuses (20, 22), montées de façon amovible sur ladite barre (12), la première desdites pinces (14, 214, 314) étant placée sur une base de support (21, 221, 321) à son tour montée sur ladite barre (12), et mobile angulairement par rapport à la base de support autour d'un axe de rotation donné (X-X5, XJ-XJ, Z-Z) au moyen d'un accouplement rotatif, caractérisé en ce que ledit accouplement rotatif comprend un élément mâle (35; 235, 236, 237, 238, 239; 333, 334) associé à la première pince (14, 214, 314) et ayant une surface au moins partiellement cylindrique, et un élément femelle correspondant (36; 130; 250, 254, 255; 336, 337) associé à la base de support (21, 221, 321) et ayant une surface au moins partiellement cylindrique constituant un siège pour l'accouplement lâche de l'élément mâle (35; 235, 236, 237, 238, 239; 333, 334).

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