[Design and implementation of pulse instrument based on DSP].

Area of Science:

• Biomedical Engineering
• Traditional Chinese Medicine
• Signal Processing

Context:

• Pulse diagnosis is a cornerstone of Traditional Chinese Medicine (TCM).
• Objective quantification of pulse signals is crucial for modernizing TCM diagnostics.
• Existing methods may lack accuracy or accessibility for widespread clinical use.

Purpose:

• To develop and evaluate a novel Traditional Chinese Medical Pulse Instrument for objective pulse signal acquisition and analysis.
• To utilize advanced signal processing techniques for accurate pulse classification and identification.
• To assess the system's performance in a clinical setting with a significant subject cohort.

Summary:

• The instrument employs the HKG-07B infrared pulse sensor and TMS320VC5402 chip for real-time pulse signal acquisition.
• It performs time-frequency domain parameter extraction, enabling sophisticated classification and identification of pulse characteristics.
• The system facilitates data storage and PC communication via USB, enhancing usability and data management.
• Experimental results from 200 subjects demonstrated a pulse signal recognition rate of 87.4%.

Impact:

• Provides an objective, data-driven approach to pulse diagnosis, complementing traditional methods.
• Offers a potential tool for enhanced clinical diagnosis and disease detection.
• Supports home healthcare applications, enabling continuous or remote pulse monitoring.