BED SIDE MONITOR/ MULTI PARA MONITOR

Bed side Monitor/ Multi-para Monitor:

• The Bed side monitoring system is designed to display an electrocardiogram, heart rate with high and low alarms, pulse rate, dynamic pressure or other waveforms received from external preamplifiers.

• The system basically consists of three circuit blocks: Preamplifier section, Logic boards and Display part.

• Various amplified signals are carried to a multiplexer and then to an analog-to-digital converter, included in the logic board.

• The central processing unit along with memory gives X and Y output for the CRT display.

• The character generator output is mixed with the Y output for the CRT display.

• The alarm settings, selection switches for different parameters and the defibrillator synchronization system communicate with the CPU.

•  The alarm signals are also initiated under its control.

• The memory comprises 5K bytes ROM and 3.25K bytes RAM with 256 samples of ECG

• It basically consists of the modular parts for measurement of thefollowing:

                                   o   ECG and respiration measuring electronics

o   Blood pressure (non-invasive) measuring electronics, pump and tubing

o   Blood pressure (invasive)

o   Temperature measuring electronics

o   Pulse probe and SpO2 (pulse oximetry)

o   Microprocessor board including analog signal multiplexer,       A–D converter and real timeclock

o   Video control board to convert the CPU commands into video signal

o   Video display module

o   Transformer and power supply board to generate necessary voltages

o   Mother board including signal buses and analog input signal buffers

o   Keyboard

• BLOCK DIAGRAM: