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

Claim 0:
1. A system, comprising:
a depth-indicating device for determining a depth of insertion of a surgical tool;
a first element and a second element, each element having an axial opening adapted for insertion of the surgical tool, such that, after insertion, the surgical tool is fixed in the axial opening in the first element and freely movable through the axial opening in the second element;
a compressible spring extending between the first element and second element;
a tool guide attached to the second element;
a first position marker attached to an outside surface of the first element and configured to rotate about an axis of the first element, such that a position of the first element can be determined in a tracking system remote from the depth-indicating device; and
a robotic system having a robotic arm configured to support the second element,
wherein the second element is configured to be disposed at a location whose spatial position is known to the robotic system or to the tracking system, and
wherein the depth of insertion of the surgical tool is determined based, at least in part, on a movement or position of the first element relative to the second element.