Distal targeting device

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/17 (2006.01)

Patent

CA 2659419

A targeting device (20) for targeting a cross bore (16, 18) in a bone nail (10) has an arm member (28) coupled to an end portion (24) of the bone nail (10) and an aiming portion (32) forming part of the arm member extending parallel to a longitudinal axis of the bone nail. An adjustable aiming device (36) is mounted on the aiming portion (32), the adjustable device (36) having a guide bore (88, 90) alignable with the cross bore (16, 18) in the nail. The adjustable device (36) is moveable with respect to the aiming portion in a direction perpendicular to a plane containing both the nail longitudinal axis and central axis of the cross bore. A target indicator (150, 200) is mounted on the adjustable aiming device (36). The target indicator has a radiolucent body including a planar portion having spaced parallel radiopaque elements (160, 162, 210, 212, 214) therein.

La présente invention concerne un dispositif de ciblage (20) destiné au ciblage d'un trou transversal (16, 18) dans un clou à os (10) et possédant un élément de bras (28) couplé à une partie d'extrémité (24) du clou à os (10) et une partie de visée (32) faisant partie intégrante de l'élément de bras s'étendant parallèlement à un axe longitudinal du clou à os. Un dispositif de visée réglable (36) est monté sur la partie de visée (32), le dispositif de visée (36) possédant un trou de guidage (88, 90) pouvant s'aligner avec le trou transversal (16, 18) du clou. Le dispositif réglable (36) est déplaçable par rapport à la partie de visée dans une direction perpendiculaire à un plan contenant l'axe longitudinal du clou et l'axe central du trou transversal. Un indicateur de cible (150, 200) est monté sur le dispositif de visée réglable (36). L'indicateur de cible possède un corps radiotransparent comprenant une partie plane contenant des éléments radio-opaques parallèles espacés (160, 162, 210, 212, 214).

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