Importance

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Abstract

The present invention relates to a tracking reference structure for localising and tracking an object by means of a medical tracking system, said structure comprising: a first part (1) which forms a support structure for at least one tracking marker (3); and a second part (2) which is configured to be fixed to said object, wherein a positionally fixed connection between the first part (1) and the second part (2) is established by means of an interface comprising at least one resiliently articulated element (4) on the first part (1) and/or second part (2), which engage(s) with the respective other part (2, 1), and wherein the resiliently articulated element (4) is configured such that its restoring spring force alone is already sufficient to positionally fix the connection. The present invention also relates to a tracking reference system comprising such a tracking reference structure which in turn comprises at least one first part (1), wherein any additional first part(s) (1) support(s) a different type of tracking marker (3) and said different first parts (1) can be interchangeably connected to the second part (2), and wherein the tracking markers (3) of each of said different first parts (1) are in particular placed in the same spatial position when being coupled to the second part (2).

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First Claim