Abstract:
A medical tracking system comprises a fiducial apparatus that includes a sensor docking feature configured to mate with a mating portion of a sensor device. The sensor docking feature retains the mating portion in a known configuration. The fiducial apparatus also includes at least one imageable fiducial marker and a surface configured for attachment to an anatomy of a patient.
Abstract:
A method comprises advancing a medical instrument toward a target within a patient anatomy, and the medical instrument includes a marker. The method further comprises depositing the marker at a location at or near the target along a trajectory of the medical instrument. The method further comprises sensing the marker to indicate a location of the target. The method further comprises, based on the marker, determining a second trajectory along which a treatment instrument may be advanced toward the target to treat the target. The second trajectory is different than the trajectory.
Abstract:
A method comprises advancing a medical instrument and a catheter toward a target tissue within a patient anatomy. The instrument includes a distal sheath marker and is slidably received within the catheter. The distal sheath marker includes a channel and an identification feature. A portion of the instrument is slidably received within the channel. The method further comprises depositing the distal sheath marker at a location at or near the target. The distal sheath marker indicates a farthest advancement point of the instrument within the patient anatomy. The method further comprises: after depositing the distal sheath marker, withdrawing the instrument away from the target; determining an orientation of the distal sheath marker based on the identification feature; and, after withdrawing the instrument, using the location and orientation of the deposited distal sheath marker to determine a trajectory of a distal end of the instrument at or near the target.