MKS presents the KARDi2-NP computer printing amplifier for researchers and developers of biomedical systems. Compact, controlled and powered by USB, it allows you to connect up to 6 ECG channels and up to 6 universal active sensors, such as a respiration sensor, a galvanic skin response sensor, a photoplethysmograph, etc. Areas of application: biomedical research, printing, somnography, cardiology, screening diagnostics, lie detection.

All channels are entered into the computer with a lower frequency of ZERO Hertz. If necessary, leads are formed and filtered by software based on incoming 20-bit samples (up to 8000 per second). This is important for precision measurements at low frequencies and the study of interchannel shifts in biological processes. For example, in cardiology and functional diagnostics, the delay of mechanical systole from electrical systole, peripheral blood flow from the moment of blood ejection into the central arteries, and peripheral blood flow in different parts of the body are significant.

For ECG channels, a connector (DB-15) is used and the contacts of a common Siemens-Elema cable are connected.

The documented interface allows you to adapt and connect analog sensors from third-party manufacturers.

The sensor channels are galvanically isolated from the ECG channels to ensure compatibility of electrophysiological measurements and patient safety. Naturally, all channels have enhanced galvanic isolation from the computer. Insulations are tested with a voltage of 4000 Volts, 50 Hz, 1 minute.

With two digital inputs and two outputs, it is possible to synchronously register or create external events in biofeedback and biocontrol systems.

The NeoSens™ series of sensors for the amplifier is constantly being improved. Currently developed:

• chest breathing sensor (belt),
• galvanic skin response sensor,
• naso-oral breathing sensor (thermometric),
• accelerometric acceleration sensor,
• photoplethysmographic finger sensor.

KARDi2-NP can be used as a non-secondary amplifier when modifying existing medical complexes. For example, together with the electroencephalograph KARDi2-NP allows you to conduct a full-fledged somnological study.

The EScreen software can be used to work as an electrocardiograph, and the Cardiovisor6C program can be used for ECG screening.

A demo program has been developed for researchers that provides: channel formation, registration, filtering and saving data in the popular EDF format. The data can be processed using optional software or freely downloaded from the Internet.