Low-cost compact ECG with graphic LCD and phonocardiogram system design

Area of Science:

• Biomedical Engineering
• Medical Devices
• Cardiology

Background:

• Many developing countries utilize various electrocardiogram (ECG) devices.
• There is a need for accessible, portable, and cost-effective cardiac monitoring solutions.

Purpose of the Study:

• To design and develop a low-cost, portable device integrating an ECG and a phonocardiograph.
• To enable synchronous visualization of ECG signals and auditory perception of heart sounds.

Main Methods:

• The system comprises three units: ECG acquisition and amplification, heart sound acquisition, and a microcontroller with a graphic LCD for signal display and computer transmission.
• The device is designed for portability and ease of use in diverse healthcare settings.

Main Results:

• The designed system successfully captures and displays ECG signals synchronously with audible heart sounds.
• The integrated device allows for sensitive detection and simultaneous monitoring of both electrical cardiac activity and acoustic heart sounds.

Conclusions:

• The portable ECG and phonocardiograph offers a user-friendly solution for synchronous cardiac monitoring.
• This device can be utilized in hospitals, clinics, and homes, empowering patients to understand their cardiac health through direct auditory feedback.