CPC A61B 8/40 (2013.01) [A61B 8/08 (2013.01); A61B 8/4209 (2013.01)] | 12 Claims |
1. A method of positioning a probe to head and neck structures of a subject, comprising:
providing a head fixation assembly to dispose a subject's head and neck;
defining a first reference plane by a guide extending upwards to the normal direction of the subject's body;
defining a second reference plane by a first light beam which passes through a longitudinal axis fitting into an ear canal of the subject and delineate a first line;
defining a third reference plane by a second light beam which represent a medial plane of the subject and delineate a second line; and
positioning the subject's head and neck structures according to a point where the first line and the second line cross;
wherein the probe is directed to be aligned with both an extension of the first line and an extension of the second line in a longitude direction of the probe.
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