Patent ID: 11890061
Assignee: MAZOR ROBOTICS LTD.
Field: Medical technology (Instruments)
Classification: CPC A  B | IPC A  B

Claim 12:
13. A tracking device for a robotic surgical arm having an end effector, the tracking device comprising:
a first depth detector member configured to securely engage a first portion of a surgical tool passing through the end effector of the robotic surgical arm, the first depth detector member including an optical tracker attached to an outside surface of the first depth detector member, configured to rotate relative to the first depth detector member, and configured to provide location information to a remote tracking system;
a second depth detector member configured to slidingly engage a second portion of the surgical tool, the second depth detector member being configured to be secured at a fixed location relative to the end effector of the robotic surgical arm; and
a resilient member extending between the first depth detector member and the second depth detector member,
wherein a depth of insertion of the surgical tool is determined based, at least in part, on a movement or position of the first depth detector member relative to the second depth detector member.