Patient reference tool for rapid registration
View Patent ↗An apparatus is provided that is at least partially visible by both a three dimensional (3D) scanner system of a medical navigation system and a tracking system of the medical navigation system. The apparatus includes a rigid member, a plurality of identifiable features attached to the rigid member and visible by the tracking system, a distinct identifiable portion visible by the 3D scanner system, and a connector mechanism attached to the rigid member to connect the apparatus to a location. The apparatus is in a field of view of the 3D scanner system and the tracking system within a timeframe of the 3D scan.
1. A patient reference device for use during a medical procedure, the patient reference device comprising:
a housing having a back side and a front side;
a plurality of tracking markers attached to the front side of the housing;
a three dimensional indicator formed on the front side of the housing;
the housing extending around the plurality of tracking markers and beyond a horizontal plane defined by tops of the plurality of tracking markers, the housing terminating at a continuous edge; and
a sterile cover attached to the continuous edge of the housing for covering the housing and the tracking markers.
2. The patient reference device according to claim 1 , wherein the housing is attachable to a patient reference arm that is attachable to a Mayfield head clamp.
3. The patient reference device according to claim 1 , wherein there are at least three tracking markers attached to the front side of the housing.
4. The patient reference device according to claim 1 , wherein the tracking markers are selected from the group consisting of passive reflective tracking spheres, active infrared markers, active light emitting diodes, and a graphical pattern.
5. The patient reference device according to claim 1 , wherein the three dimensional indicator is engraved on the front side of the housing.
6. The patient reference device according to claim 1 , wherein the three dimensional indicator includes a raised surface portion on the front side of the housing.
7. The patient reference device according to claim 1 , wherein the three dimensional indicator includes at least three separate unique indicators.
8. An apparatus, at least partly visible by both a three dimensional (3D) scanner system of a medical navigation system and a tracking system of the medical navigation system, the apparatus comprising:
a rigid member attachable to a location;
a plurality of tracking markers attached to a front side of the rigid member and visible by the tracking system;
a three dimensional indicator formed on the front side of the rigid member and visible by the 3D scanner system;
the rigid member extending around the plurality of tracking markers and beyond a horizontal plane defined by tops of the plurality of tracking markers, the rigid member terminating at a continuous edge; and
a sterile cover attached to the rigid member for covering the rigid member and the tracking markers,
wherein the apparatus is to be in a field of view of both the 3D scanner system and the tracking system during a timeframe of a 3D scan by the 3D scanner.
9. The apparatus according to claim 8 , wherein the tracking markers include reflective markers attached to the front side of the rigid member.
10. The apparatus according to claim 8 , wherein the rigid member is planar in shape.
11. The apparatus according to claim 8 , wherein the three dimensional indicator includes a three dimensional graphical pattern formed on the rigid member.
12. The apparatus according to claim 11 , wherein the three dimensional graphical pattern is at least one of engraved and etched in the rigid member.
13. The apparatus according to claim 11 , wherein the three dimensional graphical pattern includes a raised surface portion on the rigid member.
14. The apparatus according to claim 8 , wherein the apparatus further comprises:
a strap connected to the rigid member for securing the apparatus to a patient.
15. The apparatus according to claim 14 , wherein the strap is attachable around a head of the patient.
16. The apparatus according to claim 8 , wherein the apparatus is securable to a patient using a medical adhesive.
17. The apparatus according to claim 8 , wherein the timeframe is at least one frame of the 3D scan.
18. The apparatus according to claim 8 , wherein the location is a reference location comprising at least one of a fixed location on a Mayfield clamp, a bed, and a stretcher.
19. The apparatus according to claim 18 , wherein the reference location includes being attached onto a patient.
20. The apparatus according to claim 8 , wherein the apparatus is wearable.
21. The apparatus according to claim 8 , wherein the apparatus is sterilisable.
22. The apparatus according to claim 8 , wherein the field of view includes a patient reference.
23. The apparatus according to claim 8 , wherein the rigid member is spherical in shape.