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

Claim 0:
1. A guidance system configured to dynamically guide a surgical needle catheter for a patient comprising:
an electromagnetic (EM) catheter configured to be inserted into the patient and for defining a desired location to be reached by the surgical needle catheter;
an electromagnetic tracker configured to track a location and orientation of the surgical needle catheter and of a location of a tip of the electromagnetic catheter; and
an electronic data processor arranged for:
displaying a 2D concentric-ring target, wherein said target is on a plane intersecting the tip of the electromagnetic catheter and the plane being perpendicular to the orientation of the surgical needle catheter;
continuously displaying a projection, orthogonal to the plane, of a line onto said 2D concentric-ring target, the line being coincident with the surgical needle catheter, wherein the projection of the line is displayed at a distance from a center of the 2D concentric-ring target when the surgical needle catheter is not pointed towards the electromagnetic catheter, and wherein the projection of the line is displayed at the center of the 2D concentric-ring target when the surgical needle catheter is pointed towards the electromagnetic catheter; and
continuously displaying a plurality of concentric rings centered around the tip of the electromagnetic catheter.