| 摘要 |
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. |
