Instrument for targeting blocking screws

Details Instrument for targeting blocking screws Instrument for targeting blocking screws

A - Human Necessities

61

B

A61B 17/17 (2006.01)

Patent

CA 2598679

An instrument (10, 100) for locating an axis of a blocking screw is disclosed. The instrument (10, 100) is applicable for a retrograde installation of a femoral intramedullary device or an antegrade installation of a tibial intramedullary device. The instrument (10, 100) includes a drill jig (11, 105) with a radiolucent frame portion (14, 120) and a mounting portion (12, 110). The mounting portion (12, 110) is adapted to connect to an intramedullary device (204), and the frame portion (14, 120) has at least one aperture (18, 22, 24, 25, 28, 29, 126, 137, 337) for locating the axis of the blocking screw (210). The drill jig (11, 105) is adjustable to locate the aperture (18, 22, 24, 25, 28, 29, 126, 137, 337) in a longitudinal or rotational direction relative to the intramedullary device (204).

L'invention concerne un instrument (10, 100) permettant de situer un axe d'une vis de blocage. L'instrument (10, 100) peut être utilisé pour une installation rétrograde d'un dispositif intra-médullaire fémoral ou pour une installation antérograde d'un dispositif intra-médullaire tibial. L'instrument (10, 100) comprend un dispositif de perçage (11, 105) présentant une partie de bâti radiotransparent (14, 120) et une partie de montage (12, 110). La partie de montage (12, 110) est conçue pour être reliée à un dispositif intra-médulaire (204), et la partie de bâti (14, 120) présente au moins une ouverture (18, 22, 24, 25, 28, 29, 126, 137, 337) permettant de situer l'axe de la vis de blocage (210). Le dispositif de perçage (11, 105) peut être réglé afin de situer l'ouverture (18, 22, 24, 25, 28, 29, 126, 137, 337) dans un sens longitudinal ou de rotation relativement au dispositif intra-médullaire (204).

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