| 摘要 |
This invention is a direct current magnetic field generating and receiving device for the positioning of a first element relative to a second device, and more particularly, for the installation of orthopaedic implants. The invention may be used to locate holes (121) in an implanted prosthesis (120) so that screws or pins for interlocking the prosthesis either to itself or with the surrounding bone can be accurately installed. The invention comprises an electronic control unit (102), a transmitter (104), two receivers (107, 109) and a controlling computer (101), with the invention employing pulsed direct current transmitted signals to enable precise positioning of the screws or pins through the holes in any of several known commercially available intramedullary nails (120).
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