| 摘要 |
<p>In order to determine accurately the location of a splint (10) within a bone (1), and so permit accurate drilling to locations matching the location of holes (11, 12) in the splint (10), a probe (15) is inserted into the splint (10). The probe (15) carries on a head (16) thereof transmission coils (20, 21) which are powered from a suitable transmitter (23) to generate magnetic fields. Those magnetic fields may then be detected by a detector having detection coils (30, 31). The position of the coils (30, 31) of the detector may be changed both linearly and rotationally until the detector (34) connected to the detection coils (30, 31) detects maximum signal strength. The detection coils (30, 31) are then aligned with one of the transmission coils (20, 21). Since the detection coils (30, 31) are on opposite sides of the splint (10), the line joining them corresponds to the axis of the appropriate hole (11, 12).</p> |
