Patent ID: 11872031
Assignee: nan
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 8:
9. An electrical transtympanic stimulator for an auditory processing evaluation, comprising:
a processor;
a power source;
an amplifier;
a computing device having a display;
a reference threshold value;
a digital-to-analog converter in communication with the processor and the power source, configured to convert digital signals from the processor into analogue voltage signals;
a voltage-to-current convertor in communication with the digital-to-analog converter via the amplifier, wherein the voltage-to-current convertor is configured to convert the analogue voltage signals to current signals/pulses that are proportional to the analogue voltage signals;
a voltage and current measurement module configured to measure voltage and current of the current signals/pulses and to measure impedance rates using the measured voltage;
a plurality of electrodes in communication with the voltage-to-current convertor, one electrode of the plurality of electrodes configured to locate in the ear canal and another electrode of the plurality of electrodes configured to be located on the skin around the skull of a patient, performing the auditory processing evaluation by applying the current signals/pulses to the ear canal and skull of the patient in different waveforms at various frequency ranges and conveyed via the plurality of electrodes and examining the auditory pathway by applying the current signals/pulses, adjusted by the digital to analog converter controlled by the processor, through the electrodes located in the ear canal and on the skull;
one or more isolated channels, each channel including two or more additional electrodes;
wherein the transtympanic stimulator is configured to display the impedance rate between the electrodes in both channels via connection to the computing device's display, displaying an error message when the impedance rates are exceeded;
the computing device as part of the electrical transtympanic stimulator for further adjusting the parameters of the current signals/pulses and the computing device analyzing the auditory processing evaluation, wherein parameters include current, voltage, and frequency; and
a protection circuit configured to disconnect the power supply from the plurality of electrodes when the current signals/pulses value exceeds the reference threshold value as measured by the voltage and current measurement module.