US Patent 10390891 Hologram lens for positioning an orthopedic implant

An apparatus for positioning an orthopedic implant, the apparatus includes a magnetic receiver, a processor, and a personal display device. The magnetic receiver is configured to sense respective components of one or more magnetic fields generated by a field-generating device coupled to the orthopedic implant, and to produce corresponding electrical signals indicative of the sensed components of the one or more magnetic fields. The processor is configured to calculate, based on the electrical signals, a position of the orthopedic implant within an organ of a patient. The personal display device is configured to display at least part of the orthopedic implant overlaid on a scene, based on the position calculated by the processor.