The Study On Pulse Wave Analysis And Detecting System Of Cardiovascular Function Parameters

Owing to the rapid improvement of people's standard of living in our country, the mortality rate and incidence of cardiovascular diseases have been rising in recent years and have become primacy of kinds of diseases, which is seriously doing harm to people's health. If convenient and rapid cardiovascular health diagnosis were realized, the incidence of cardiovascular diseases would descend. A cardiovascular function parameters detecting system based on pulse wave of radial artery is introduced in this paper. The system can work out main cardiovascular function parameters making use of pulse signal of radial artery. In the process of development, we have designed the pulse wave detecting circuit. The signal of pulse wave can be detected by a pulse pressure sensor, be amplified and filtered by a circuit including a difference amplifier, a low-pass filter, a high-pass filter and an inverter, be converted to digital signal by an A/D converter, and finally be processed by PC. The system program controls the A/D converter to gain the digital signal and display it on a PC screen in real time. Making use of proper data structure, the system software can access pulse wave data, personal information data, and result data. And the software saves all data using file system management which occupies a few system resources. We have studied on the realization and significance of nonlinear pulse wave transmitting theory, which establishes the foundation of improving the system. Traditional cardiovascular function parameters detecting system demands measuring blood pressure ahead with mercury blood-pressure meter, which leads to inconvenient operation. Operators are demanded to have command of certain medical knowledge to accurately identify the diagnostic waveform representing testees'health, which isn't benefited to be widely used in families. The system we developed integrates with a blood pressure measuring module. So operators can measure blood pressure easily by mouse clicks using our system. Furthermore, the intelligentized system we developed can identify diagnostic waveforms...