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Related Experiment Videos

Improved waveform generator and cardiac simulator for sensitivity testing of ventricular programmed pulse generator

D A Wiegand, G F Tyers, R R Brownlee

    Medical Instrumentation
    |May 1, 1978
    PubMed
    Summary

    A new circuit generates a standard sine squared waveform for pacemaker testing. This simulated QRS complex aids in preimplantation sensitivity testing of ventricular programmed pacemakers.

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    Area of Science:

    • Biomedical Engineering
    • Medical Device Technology

    Background:

    • Ventricular programmed pacemakers require preimplantation sensitivity testing.
    • Standardized test pulses are crucial for reliable pacemaker evaluation.
    • The sine squared waveform is the AAMI standard for pacemaker test pulses.

    Purpose of the Study:

    • To present a simple circuit for generating an accurate sine squared pulse.
    • To enable easy adjustment of pulse width (base frequency) for the test pulse.
    • To provide a design for integrating the pulse generator into a complete cardiac simulator.

    Main Methods:

    • Development of a simple electronic circuit for sine squared pulse generation.
    • Implementation of adjustable pulse width control.
    • Design of a system for incorporating the pulse generator into a pacemaker test waveform generator.

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    Main Results:

    • The presented circuit accurately generates the sine squared waveform.
    • The circuit allows for straightforward adjustment of the pulse width.
    • A functional design for a complete pacemaker test waveform generator is proposed.

    Conclusions:

    • The developed circuit provides an accessible method for generating the standard sine squared test pulse.
    • This facilitates accurate preimplantation sensitivity testing of pacemakers.
    • The proposed integration into a cardiac simulator enhances pacemaker testing capabilities.