Boris Gramatikov
The high-end ECG 1261/1262 series The ECG 1261/1262 are fully computerized electrocardiographs using a penless microdot recorder of 220 mm paper width. These electrocardiographs were developed by a team led by Professor I. Dotsinky, PhD, Dr.Sc. Hardware and software modules were developed by Dr. I. Christov, Dr. A. Iltcheva, and Dr. B. Gramatikov. The system features synchronous acquisition of 12 leads/3 seconds, automatic artefact/noise detection, computed Frank X, Y and Z leads and vector loops, efficient suppression of 50 Hz interference while preserving entirely signal shape (patented), 30 Hz tremor filter, automatic wave measurement and interpretation, flat membrane keypad, serial interface and PC communication protocol, and easy operation.

Specifications
 
 Parameter   Value
Sensitivity   1 or 2 cm/mV
Bandwidth   0.05 Hz - 125 Hz
Time constant   3.2 s
A-D conversion   400 Hz, 10 bit
Recorder   silent thermal microdot printer/plotter, 8 dots/mm vertical and horizontal resolution
Paper  Thermosensitive, non-waxed, 220 mm wide / A4 size sheets
Effective paper speed   12.5, 25 and 50 mm/s
Dimensions  500(W) x 320 (D) x 140 (H) mm
Weight   12 kg

ECG 1261

ECG 1261 in the clinic

The improved version ECG 1262