| 摘要 |
The invention relates to a medical referencing device for a medical navigation system (10), by means of which medical navigation system a motion of a body part (16), in particular of the thigh (16), can be tracked in space by means of the referencing device (18; 100; 120; 130) attached to said body part. According to the invention, in order to provide such a referencing device by means of which position data of the body part can be obtained in a manner that is gentle on the patient, the referencing device comprises a fastening apparatus (20) for non-invasively fastening the referencing device (18; 100; 120; 130) to the body part (16) and by means of a referencing body (38), which extends in a planar manner and can be elastically elongated in at least one direction (34, 36) of the extent and which can be adapted in the shape of said referencing body to the contour of the body part (16) and has a marking region (50; 102; 122; 132), which comprises or forms a pattern (54; 136), wherein the referencing body (38) is designed in such a way that the pattern (54; 136) is undeformed or substantially undeformed at least in some sections when the body part (16) is moved, and wherein, at least in some sections, the pattern (54) can be used by the navigation system (10) as a reference for tracking the body part (16) in space. The invention further relates to a medical navigation system and to a method for tracking a medical referencing device in space by means of a navigation system. |
