Percutaneous pedicle screw assembly

Details Percutaneous pedicle screw assembly Percutaneous pedicle screw assembly

A - Human Necessities

61

B

A61B 17/56 (2006.01)

Patent

CA 2602009

An exemplary connection member (100, 200) for percutaneously coupling to one or more orthopedic fasteners (110) includes a tulip assembly (160), and, a rod (180, 280), wherein the rod (180, 280) is permanently coupled to the tulip assembly (160). According to another embodiment, a connection member (100, 200) for percutaneously coupling to one or more orthopedic fasteners (110) includes a fastener head securing member (140, 240) including a fastener head securing orifice (220) having an axis defined by a wall member (140, 240) terminating in a seating member (225), an adjustable compression member (150, 250) coupled to a surface (300) of the wall member (140, 240), a rod (180, 280) coupled to the wall member (140, 240), and a fastener head receiving orifice (210) formed in the wall member (140, 240), wherein the fastener head receiving orifice (210) is formed transverse to and intersects the screw head securing orifice axis.

L'invention porte sur un élément de raccordement (100, 200) destiné à être couplé par voie percutanée à un ou plusieurs des éléments de fixation orthopédiques (110), cet élément comprenant un ensemble tulipe (160) auquel est couplé en permanence une tige (180, 280). Selon une autre forme d'exécution, un élément de raccordement (100, 200) destiné à être couplé par voie percutanée à un ou plusieurs éléments de fixation orthopédiques (110) comprend un élément de fixation à tête (140, 240) comportant un orifice (220) présentant un axe défini par une paroi (140, 240) aboutissant dans un siège (225); un élément de compression réglable (150, 250) couplé à une surface (300) de la paroi (140, 240); une tige (180, 280) couplée à la paroi (140, 240) et un orifice (210) accueillant la tête de l'élément de fixation et formé dans la paroi (140, 240), cet orifice (210) étant formé transversalement et coupant l'axe.

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