Thoriax is a PC-based computerized electrocardiograph system with full ergometry functionality.
Thoriax consists of three main parts:
The ECG sampler is a very small external computer peripheral device that can be connected to any IBM PC-based computer via USB or parallel port.
The electrodes are all connected to the ECG sampler device.
Visualization and recording are performed by the Thoriax software that is a 32-bit application running on all versions of Microsoft Windows.
Thoriax is a high quality 12-lead ECG system. Thoriax is extendable with a number of medical systems (ergometers, blood pressure meters, suction electrodes, etc).
Sampling - 2000 samples/sec
Resolution - 12 bits
Number of channels - 12
Input impedance - > 10 Mohms
Patient protection - floating earth (IEC 601)
Defibrillator protection - 5 kV (1 kV/microsec)
CMRR - >120 dB
Filter - 35, 50/60, 100/120 Hz
Time constant - 3.2 sec
Linearity error - <0.5 %, < 1/2 LSB
Polarization voltage - ą400 mV
Leads - 12 standard + 3 Frank
THORIAX stress test
The THORIAX stress test module fully automates stress tests. The computer manages full control of the stress equipment, a bicycle or a treadmill. The whole process of stress testing is pre-programmed. You can preset phase duration, initial load and load steps, as well as the conditions to break stressing. If the ergometer is equipped with an automatic blood pressure meter, the THORIAX system will read it and store the measured values. An ECG segment is automatically saved at the end of each stress phase. Interpretation is performed on the fly, so median curves and ST-trends can be shown on the display while the test is in progress.