Patent ID: 11896317
Assignee: MAZOR ROBOTICS LTD.
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 11:
12. A method of locating an object during a surgery, comprising:
receiving a model of a portion of a patient's anatomy;
receiving a surgical plan comprising information about a planned position of an implant within the portion of the patient's anatomy;
calculating, based on the planned position of the implant and the model, a predicted speed of sound along at least one path that extends at least partially through the portion of the patient's anatomy, the predicted speed of sound being calculated by:
determining, using the model, which materials lie along the at least one path;
measuring, within the model, a thickness of each material that lies along the at least one path;
determining a speed of sound through each material that lies along the at least one path; and
calculating the predicted speed of sound based on the thickness of each material and the speed of sound of each material that lies along the at least one path;

receiving, from at least three microphones, detection information about a detected sound generated by a speaker secured to the implant; and
determining, based on the predicted speed of sound and the detection information, a position of the implant.