| 摘要 |
PURPOSE: To make it possible to accurately align the center of a laser targeting device with a target head, by laying a reflecting mirror in an adjustable vessel lying directly in front of a radio-opaque cruciform target, regarding a device for accurate co-axial alignment of a narrow-laser beam with an X-ray beam. CONSTITUTION: This laser targeting device 10 has a storage box 11 housing a laser beam irradiation source, and a slender laser beam 23 is emitted from the laser beam irradiation source, so as to be become coaxial with an X-ray beam axial line 7. Also, a surgical drill 8 and a drill bit 9 are accurately aligned with a nail hole 4 via the laser beam 23. Furthermore, the laser target device 10 is equipped with a laser beam direction instructing means capable of reciprocating along a Z-axis and a Y-axis within the X-Y plane, a reflecting mirror placement means positioned at 45 degrees with the X-axis of the instructing means, a mark-shaped measurement means prohibiting the transmission of a radiation within a housing vessel, and a marking guide capable of determining an X-ray beam emitting position and applying a mark. |
