The fastest screening tool for peripheral arterial disease

It is everything that you are looking for in a medical device – a fast, simple, accurate and objective screening tool for the diagnosis of peripheral arterial disease.

Sensing in micrometers of mercury

During the inflation and deflation of pressure in the cuffs, oscillations are collected. The most modern sensors and analogue-to-digital converters allow MESI ABPI MD sensing to 4.6 micrometers of mercury and thus enable accurate results. The sensitivity level is so high that it is analogous to a man weighing 100 kilos being able to notice small drop of blood, which is required for his glucose test.

State of the art algorithm

The measurement of brachial blood pressure with the oscillometric method is widely used, while the measurement of blood pressure in the lower extremities is brand new. Following accurate and extended research and development, we have decided to use the strongly related non-parametric regression method. We use smoothing with the help of locally weighted scatterplot smoothing for the envelope of the oscillations.

Improved error detection system

Never before has any medical device been this supportive. When we were developing MESI ABPI MD, we did not overlook the importance of error detection. In order to create a device with reliable results, it is crucial to detect potential errors and eliminate them. Thanks to an improved error detection system, MESI ABPI MD will alert the operator to any irregularities which have occurred during the measurement process. For example, if the cuff has been poorly placed or if the patient has been moving during the measurement, the error message will be displayed on the screen.

More about improved error detection system.

Elimination of blood pressure drift error

It is impossible to develop a medical device for ABI without thorough consideration of the constant drift of blood pressure. It is crucial to eliminate delay between the separate measurements on each extremity. With the purpose of nullifying changes in blood pressure, MESI ABPI MD conducts simultaneous blood pressure measurements on all extremities. An integrated microcontroller verifies the blood pressure five times in one second and regulates the operations of valves and pumps. Surveillance of inflation and deflation enables the pressure to follow a curve, carefully defined in advance.

Read more about the elimination of blood pressure drift error.

More data, better accuracy

How much information can be saved or how much data can be processed are both questions that require answers. Basic medical devices for measuring blood pressure have limited memory capacity and data processing and the calculation is made from just few heart beats. That is why we not only integrated a high capacity microcontroller with ARM processor core but also integrated additional memory. Consequently, we can determine blood pressure based on a greater number of heart beats, which makes the results more accurate and more reliable. In addition, every result is double-checked before appearing on the screen.

Objective measurement

Do you have problems detecting the first systolic Korotkov sound with the Doppler probe? Does the pressure manometer cursor run too fast? Even 5 mmHg are important for the accuracy of the Ankle-Brachial Index measurement. MESI ABPI MD’s specially designed algorithm is based on the oscillometric method (one of the plethysmographic techniques), which is independent of the operator and therefore ensures objective measuring of ABI – the subjectivity of the operator is thus excluded.

Repeatable measurement

Regardless of who performs the measurement, whether it is a physician or a nurse, regardless of all the disturbances that come from the office, and whether or not you can feel the pulse on patient´s ankle or not – the measurement result with MESI ABPI MD will always be the same. The MESI ABPI MD’s software algorithm uses a special protocol where variables are measured and calculated equally for each examination. The measurement of the Ankle-Brachial Index is reliable as well as repeatable and thus very valuable for physicians and patients.