Sicherheitsüberwachung für Gradientenkette eines Magnetresonanzsystems

Details

Veröffentlichungs-Nr.

EP4722750

Anmeldetag

7. Oktober 2024

Veröffentlichung

8. April 2026

Rechtsraum

EP

IPC

G01R33/28, G01R33/385(JULOSKI ALEKSANDAR et al.)

Abstract

A safety monitoring method for a gradient chain of a magnetic resonance examination system comprises:applying (S1) an input gradient waveform to the gradient chain at a set time period,determining (S2) a predicted output of the gradient chain which is induced by the input gradient waveform, on the basis of a predetermined frequency dependent impedance value of the gradient chain which has been predetermined by measuring transfer functions of the gradient chain for different frequencies before the set time period,measuring (S3) the actual output of the gradient chain which is induced by the input gradient waveform,comparing (S4) the actual output with the predicted output, andtriggering (SS) a corrective action if the comparing (S4) has indicated a difference beyond a predefined admissible difference.In this way, the safety monitoring method can reliably detect and mitigate electrical faults, such as broken conductors or loose contacts, to prevent sustained electrical arcing and thereby enhance the safety and integrity of the MR equipment, as well as protect patients and medical personnel.

Anmelder

Firma

Koninklijke Philips N.V.

Land

🇳🇱 Niederlande