Patent ID: 11950950
Assignee: COVIDIEN LP
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 7:
8. A system for detecting movement of a fluoroscope, comprising:
a fluoroscopic imaging device;
a plurality of radio opaque markers disposed in a reference frame of the fluoroscope;
a workstation in operative communication with the fluoroscope, the workstation including a memory and at least one processor, the memory storing instructions, which when executed by the processor, is configured to:
capture a fluoroscopic reference frame;
calculate an interval between the radio opaque markers in the reference frame;
calculate an expected interval between the radio opaque markers for a plurality of levels of zoom;
identify the expected interval that most closely matches the calculated interval in the reference frame;
apply a transform based on the identified expected interval; and
overlay a location of a target on a live fluoroscopic image based on a result of applying the transform.