EKG Simulator

ECG Simulator
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TechPatient CARDIO ECG Simulator
TechPatient CARDIO
a new concept in waveform generation
more information

realtime ecg simulation lets you
decide every aspect of the testing process

high signal output helps software developers
start testing before hardware design is completed

real life noise sources improve your product’s reliability,
helping you design it to work under every condition





The TechPatient CARDIO is a handheld ECG simulator that generates 12 leads cardiac signals to test the performance of ECG based diagnostic equipment such as patient monitors, EKG machines and Holter recorders.

Performance test waveforms, beat-to-beat variability and advanced noise testing are some of the unique features that distinguish the TechPatient CARDIO from other cardiac patient simulators and biomedical test equipment.

Cardiac Waveforms

Heart simulation is based on a waveform patterns synthesized from a healthy human subject that are processed online to deliver realistic heart waves with tight control over amplitude, rate and beat-to-beat variability. These parameters are specified by the user as mean and standard deviation percentage. The random process is based on pseudo-random numeric algorithms that produce waveform variability with predefined statistics.

Performance Waveforms

As a biomedical simulator the TechPatient CARDIO includes a set of four performance waveforms to analyze different aspects of the device under test. These precisely defined waveforms are used to test filter response, centering algorithms, amplitude calibration and time scale calibration.
The sine wave generator has an equivalent bandwidth of , and produces three phase waveforms on the limb leads and single phase waveforms on the precordial leads. This special arrangements ensures signal generation on the three standard limb leads (bipolar) and on the three augmented leads (unipolar). Sine wave sweeps are the easiest way to test the frequency response of digital and analog signal processing filters.
The triangle and square wave generators operate in a bi-phasic configuration on the limb leads and in a monophasic configuration on the precordial leads. The common augmented lead is user selectable. The square wave generator is specially useful to test step response while the triangle wave generator can be used analyse centering and gain control algorithms.
The baseline generator is usually used in conjunction with noise sources to measure interference rejection without disturbance from the ECG signal.

Calibration Waveforms

Calibration waveforms are also included in the TechPatient CARDIO ECG simulator and are accessed through the pulse generator.
The pulse generator produces a 100ms rectangular pulse of selectable amplitude at a user defined rate. The pulsed waveform provides two sharp rising edges (rise time: 1.3ms) and two precisely defined amplitude levels to assist the operator in the calibration of ECG based diagnostic equipment.

Biopotential Multi-Connectors

The 12 leads signals are output though 10 biopotential multi-connectors. These connectors are compatible with 4 mm snap connectors, 4mm banana connectors and 2mm pin connectors. A set of 3mm adapters is included on demand to add compatibility to Din 3.0 patient cables.
Each of the biopotential outputs of the TechPatient CARDIO patient simulator has a unipolar output impedance of 2200 ohms to the N terminal (right leg). Bipolar output impedance on the limb leads is 4400 ohms and should be considered in the calibration of biomedical equipment.
12 leads (10 electrodes) patient simulators are compatible with 5 leads and 3 leads diagnostic equipment. The single precordial electrode included in 5 leads patient cables should be connected to any of the precordial outputs. The unused biopotential outputs should not be connected and remain untouched by the operator.

High-Signal Output

The TechPatient CARDIO EKG simulator outputs a 200x preamplified Lead II signal through its hi-signal alligator cable. This high level signal includes a 1 VDC baseline to ease the interfacing to ADC converters, microcontrollers or digital signal processors.
Preamplified signals are specially useful to bypass front end instrumentation amplifiers and test the performance of processing circuits. They are also useful to parallelize product development, enabling software and digital designers develop in tandem with analog designers. DSP development kits and evaluation boards can also be interfaced with ease.

National Instruments ECG Starter Kit

Our ecg simulator has been selected by National Instruments to test and develop their new ECG starter kit.
It has also been displayed with their development kits at the Embedded Systems Conference 2010. Click Play to watch the video.

Ritmic Module Arrhythmia Simulation

Click Play to watch the TechPatient CARDIO V3 with the Ritmic Module arrhythmia simulator installed. For a complete list of cardiac rhythms available please go to Specifications.

Ritmic Module

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