Patent ID: 11963777
Assignee: GE PRECISION HEALTHCARE LLC
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A method of determining and reducing saturation of a right leg drive (RLD) circuit in a data acquisition system, the method comprising the steps of:
providing a data acquisition system including a plurality of limb electrodes to be located on a patient, the plurality of electrodes including a right leg electrode, a control unit including a processor configured to receive a plurality of electrophysiological signals from the plurality of limb electrodes and operable to generate an electrocardiograph (ECG), and at least one RLD circuit operably connected between a number of the plurality of limb electrodes and the right leg electrode, the at least one RLD circuit including a voltmeter operably connected to the output of the at least one RLD circuit; and
supplying an input to the at least one RLD circuit;
measuring the output from the at least one RLD circuit using the voltmeter to determine an actual output voltage VACT;
comparing VACT to a saturation voltage VSAT;
determining if VACT exceeds VSAT;, determine a duration that VACT exceeds VSAT, and, providing a saturation index value based on the duration that VACT exceeds VSAT within a set time period.