Patent ID: 11918380
Assignee: SURAG MEDICAL GMBH.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A minimally invasive examination device for assisting in positioning of an interventional instrument (16) in or on a body of a patient, comprising:
a coupling element (12, 24) on which at least a first sensor (14, 24a, 24b, 24c, 24n+1) is arranged and that is coupled to a proximal end of the interventional instrument (16), as a result of which the first sensor (14, 24a, 24b, 24c, 24n+1) is connected to the interventional instrument (16) via the coupling element (12, 24),
a signal detection and processing device (20, 34) that is connected to the first sensor (14, 24a, 24b, 24c, 24n+1) in a wireless or wired manner so as to transmit signals, wherein the signal detection and processing device (20, 34) is designed to process the signals transmitted from the first sensor (14, 24a, 24b, 24c, 24n+1), and
a display device (22) that is designed to visually display processing results from the signal detection and processing device (20, 34), wherein the first sensor (14, 24a, 24b, 24c, 24n+1) is a sound detection sensor, and wherein the coupling element (12, 24) connects the interventional instrument (16) to the first sensor (14, 24a, 24b, 24c, 24n+1) so as to transmit sound from the interventional instrument (16) to the first sensor (14, 24a, 24b, 24c, 24n+1); and
wherein audio signals transmitted through the interventional instrument (16) to the first sensor (14, 24a, 24b, 24c, 24n+1) at the proximal end of the interventional instrument (16) are detected by the first sensor (14, 24a, 24b, 24c, 24n+1), wherein the audio signals are processed and converted into a visual representation, wherein a spectrum of the audio signals and a temporal change thereof is displayed;
wherein the signal detection and processing device (20, 34) is configured so as to detect a change in a spectral distribution of one of the audio signals from the first sensor (14, 24a, 24b, 24c, 24n+1) over two or more different frequency bands.