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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:
 
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