A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 17/86 (2006.01) A61C 8/00 (2006.01) F16B 5/02 (2006.01) F16B 43/02 (2006.01)
Patent
CA 2681172
The present invention pertains to an arrangement, as well as a method, for fastening and fixing of first element, in the form of an implant, against the second element, in the form of bone tissue, during surgical use of a screw joint, by means of a screw with a conical head with a cone toward the screw tip, said head having an outside thread with a small pitch, which is intended to be screwed into the implant, and a main thread on the stem of the screw, which has greater pitch than the thread of the screw head, and said thread is intended to be screwed into the bone tissue, in which said first element, the implant, has a spherical hole, in which a ductile sleeve is arranged in the form of a sleeve divided into segments, flanges, and has a spherical shape that matches the spherical shape of hole, and said sleeve has a conical threaded inside shape that is complementary to the outer threaded shape of the screw head, in which screw, when tightened, can fasten the implant in any desired angle, relative to the other element, and fix the screw joint in this position.
La présente invention concerne un arrangement, ainsi qu'un procédé, pour attacher et fixer un premier élément, sous forme d'un implant, contre le second élément, sous forme de tissu osseux, durant une utilisation chirurgicale d'un joint à vis, au moyen d'une vis avec un tête conique vers la pointe de vis, ladite tête présentant un filetage externe avec un petit pas, qui est destiné à être vissé dans l'implant, et un filetage principal sur la tige de la vis, qui présente un pas plus grand que le filetage de la tête de vis, et ledit filetage est destiné à être vissé dans le tissu osseux, dans lequel ledit premier élément, l'implant, présente un trou sphérique, dans lequel un manchon ductile est disposé sous forme d'un manchon divisé en segments, flasques, et présente une forme sphérique qui correspond à la forme sphérique du trou, et ledit manchon présente une forme interne conique filetée qui est complémentaire de la forme externe filetée de la tête de vis, laquelle vis, lorsque serrée, peut attacher l'implant selon n'importe quel angle désiré, par rapport à l'autre élément, et fixer le joint à vis dans cette position.
Bcf Llp
Olerud Sven
Spherofix Ab
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