Vizor is a sort of eyewear with clear glasses. But it can also project your patient’s spine in 3D so that you can locate your tools in real time even if it’s below the skin. It has multiple sensors to detect your head movements as well.
Hospitals first have to segment the spine from the rest of the scan, such as soft tissue. They already have all the tools they need to do it themselves.
Then, doctors have to place markers on the patient’s body to register the location of the spine. This way, even if the patient moves while breathing, Vizor can automatically adjust the position of the spine in real time.
Surgeons also need to put markers on standard surgical tools. After a calibration process, Vizor can precisely display the orientation of the tools during the operation. According to Augmedics, it takes 10-20 seconds to calibrate the tools. The device also lets you visualize the implants, such as screws.
Elimelech says that the overall system accuracy is about 1.4mm. The FDA requires a level of accuracy below 2mm.
Remarkable, but hard to explain in words. Watch the video.