US Patent 9622720 Ultrasound system with stereo image guidance or tracking

An image-guided ultrasound system may include an ultrasound probe, a display configured to communicate with the ultrasound probe to receive ultrasound signals to display images from the ultrasound probe, and an imaging device that may be attached to or integral with the ultrasound probe and configured to communicate with the display to display information derived from images from the imaging device. The imaging device may include a stabilization assembly, an imaging device assembly physically coupled to the stabilization assembly, a plurality of light-sensitive devices physically coupled to the stabilization assembly, and a memory unit physically coupled to the imaging device assembly, the memory unit configured to store calibration or usage information for the image-guided ultrasound system.