Connection arrangement between an implant and an abutment

Details Connection arrangement between an implant and an abutment Connection arrangement between an implant and an abutment

A - Human Necessities

61

C

A61C 8/00 (2006.01)

Patent

CA 2232822

The connector between an implant (1) and a straight or angled abutment (800) can be produced by means of a locking screw (400) and a spreader ring (500). There is an inlet (830) in the abutment (800) which is widened by a radial groove (835) near its lower outlet. The spreader ring (500) is supported in the groove (835) and through it passes the locking screw (400), the head (410) of which presses on the spreader ring (500) and the threaded section (430) of which engages in the threaded drilling (21) in the implant (1). The locking screw (400) with the spreader ring (500) fitted on it and the head (410) can be inserted into the inlet (830) from below beforehand. The implant (1) may have a non-rotationally symmetrical accomodating contour on the inner cone, preferably a polygonal recess, and the abutment (800) advantageously has a matching shape. A special screwdriver is used for screwing.

L'invention concerne un dispositif de liaison entre un implant (1) et un pilier (800) droit ou courbé. Ce dispositif est fabriqué au moyen d'une vis (400) de serrage et d'un anneau (500) d'écartement. Dans le pilier (800) est pratiquée une entrée (830) et, à proximité de la base du pilier (800), ladite entrée (830) est élargie par une rainure (835) radiale. Dans la rainure (835) s'appuie l'anneau (500) d'écartement que traverse la vis (400) de serrage dont la tête (410) est plaquée contre l'anneau (500) d'écartement et dont la douille (430) filetée est insérée dans l'orifice (21) fileté de l'implant (1). La vis (400) de serrage peut être insérée, avec son anneau (500) d'écartement et la tête (410), la première dans l'entrée (830), par dessous. L'implant (1) peut présenter une forme de logement à asymétrie de rotation sur le cône intérieur - de préférence un logement polygonal - et le pilier (800) a avantageusement une contre-forme complémentaire de la forme du logement. On utilise un tourne-vis spécial pour le vissage.

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