| 主权项 |
1. A medical marker device, comprising;
a) a plurality of markers each having a planar marker surface, which markers are disposed on the marker device such that each marker of the plurality of markers displays mirror symmetry with respect to a mirror plane of symmetry which is common to all markers of the plurality of markers, wherein the planar marker surfaces are disposed in the same orientation relative to a marker plane, and, b) an attaching unit for attaching the marker device to a marker holder, wherein the attaching unit is disposed on the mirror plane of symmetry, wherein the marker plane is tilted relative to the mirror plane of symmetry at an angle of between 0° and 90°, excluding these values. |
