Patent ID: 11896320
Assignee: SMITH & NEPHEW ORTHOPAEDICS AG
Field: Audio-visual technology (Electrical engineering)
Classification: CPC A  G  H  Y | IPC A  G  H

Claim 0:
1. A system comprising:
an optical tracking device comprising a structured light module and an optical module comprising an image sensor and spaced from the structured light module at a known distance; and
a surgical computing device comprising a display device, a non-transitory computer-readable medium comprising instructions stored thereon, and a processor coupled to the non-transitory computer-readable medium and configured to execute the stored instructions to:
generate a depth map from a first image captured by the image sensor during projection of a pattern into a surgical environment by the structured light module, wherein the pattern is projected in a near-infrared (NIR) spectrum;
reconstruct a three-dimensional surface of one or more anatomical structures in the surgical environment based on the generated depth map;
output the reconstructed three-dimensional surface to the display device; and
process a second image captured by the image sensor in a visible light spectrum to determine tracking information comprising at least a three-dimensional position of each of one or more fiducials within the surgical environment;
wherein the first and second images are captured in a common coordinate system.