Phoenix Ambulatory Blood Pressure Monitor Project
Architecture

 

The subsystems of the Phoenix Ambulatory Blood Pressure Monitor (ABPM) are the Local Subsystem which is worn by the patient and the Remote Subsystem which is used by the healthcare practitioner and performs analysis and reporting.

Local Subsystem - worn by the patient

Components (volunteers needed)

The sensor reacts to blood flow to produce analog signals from which blood pressure and heart rate can be determined.

The power component consists of batteries to provide electrical energy to other components and possibly a power generator such as piezo film or cable that restores energy to the battery.

The processor converts the sensor signal to digital form, with date, time, heart rate, systolic pressure and diastolic pressure. Additional measures such as body movement and blood velocity would be helpful.

The memory stores the blood measurements in digital form. It also may store program instructions, system information, and patient and situation information relevant to this usage of the monitor.

The display may have the following forms: 1) an indicator that shows that the device is working normally or provides an error condition if it is not, 2) a readout display that shows the last blood pressure and heart rate measurement.

Several communications interfaces are under consideration. These include a wired (contact) or wireless method to transfer the collected measurements to the remote subsystem. A removable flash memory card could also be used,
such as one of the types found in digital cameras and other portable devices.

Remote Subsystem - used by the healthcare practitioner

It consists of a computer system that collects blood pressure measurements, analyzes them and assists in patient diagnosis and identifies treatment options.

Components (volunteers needed)

 

 

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