Patent ID: 11944344
Assignee: KARL STORZ SE & CO. KG
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 25:
26. A guidance system comprising:
an electromagnetic device configured to be inserted into a body and defining a desired target to be reached by an operative device;
an electromagnetic tracker configured to track a location and orientation of the operative device and of a location of a tip of the electromagnetic device; and
a processor and memory configured to:
display a 2D concentric-ring target on a display device, wherein said target is on a plane intersecting the tip of the electromagnetic device and the plane being perpendicular to the orientation of the operative device;
continuously display a projection, orthogonal to the plane, of a line onto said 2D concentric-ring target, the line being coincident with the operative device onto the target, wherein the projection of the line is displayed at a distance from a center of the 2D concentric-ring target when the operative device is not pointed towards the electromagnetic device, and wherein the projection of the line is displayed at the center of the 2D concentric-ring target when the operative device is pointed towards the electromagnetic device; and
continuously update the display of a plurality of concentric rings centered around the tip of the electromagnetic device.