Patent ID: 9410802
Filing Date: 2016-08-09
CPC Classification: A61B,G01B,G01D

Claim Text:
1. A method for checking a situation or a position of an instrument having at least a first section and at least a second section, wherein the first section comprises at least a first sensor and the second section comprises at least a second sensor, and wherein the method comprises a metrological determination of the situation or the position, or its change, of the first sensor and the second sensor, the method comprising the steps of: determining an expression of a variable feature of a spatial reference between the situation or the position of the first sensor and/or at least one spot on the first section, on the one hand, and the situation or the position of the second sensor and/or at least one spot on the second section or the first section which is referenced by the second sensor, on the other hand, at at least a first point in time, a second point in time, and a third point in time; and determining by a criterion whether a difference in the expression of the variable feature between a first expression at the first point in time and a second expression at the second point in time still exists at the third point in time.