Abstract: A system includes an analog-to-digital converter configured to convert an analog signal generated by a digital sensor into a digital signal, and a testing apparatus configured to be enabled after the analog-to-digital converter operates in a testing mode, wherein the testing apparatus comprises a filter configured to receive the digital signal from the analog-to-digital converter, and apply a filtering process to the digital signal, a control circuit configured to terminate the filtering process after an output of the control circuit reaches a predetermined reference value, and a result register configured to receive a result generated by the filter after the control circuit terminates the filtering process.

Abstract: The invention relates to a device for maneuvering a catheter into the interior of a body, comprising a support stiletto (5) which may be inserted into the catheter tube (1) and which sustains the shape of said catheter tube (1) as it penetrates into the interior of the body, wherein a position-indicating magnetic tracking means (7, 8, 9, 10) is arranged on said support stiletto (5) which may be detected by means of a magnetic tracking-based navigation means (11, 12).