Medusoft
Medical Computer Engineering Corporation The quality is our warranty
- Menu
- Home
- Products
- Cardio Tens
- BlueBP-05
- ABPM-04
- Holter ECG's
- Cardiax
- Spirometer
- Saltpipe
- Audiometer
- Cardy
- Home
- Pet
- Med
- Arteriograph
 |
|
body |
How does TensioMedTM Arteriograph operate?
The main principle of
the device uses the latest results of medical researches, which surprisingly
showed that signals could be
detected from the upper arm cuff, even if it is over-inflated with 35-40
mmHg beyond the systolic BP, despite of the completely closed brachial
artery. Although these signals are
extremely small, with our lately patented technology we were able to detect
them. It had been revealed that they contain valuable information about the
central hemodynamics.
The measurement is based on the fact that during systole, the blood volume having been ejected into the aorta generates pulse wave (early systolic peak). This pulse wave runs down and it reflects from the bifurcation of aorta, creating a second wave (late systolic peak). The return time (RT S35) is the difference (msec) between the first and the reflected systolic wave. RT S35 is related to the stiffness of the aorta. The difference of the amplitudes of the first and second systolic wave (AIx) depends on the tone of the peripheral arteries (endothel function). On the basis of these, aortic pulse wave velocity (PWV S35) can be calculated if we measure the distance between the jugulum and the symphysis (Jug-Sy).
By analysing the amplitude of the reflected and the first wave, the augmentation index can be calculated (AIx), which provides information on both the stiffness of the aorta (arteriosclerosis) and about the peripheral vascular tone. Regarding that the augmentation index is in linear negative correlation with the heart rate, we normalise the received AIx value for 80 beats per minute frequency (AIx80), to be able to compare the results at different heart rate. The closing of the aortic valve can be recognised on the wave taken at the systolic pressure + 35 mmHg, and as a result the ejection duration (ED) can be measured. By using the ED, the systolic (SAI) and diastolic area (DAI) can be calculated on the oscillometric pulse wave, recorded at diastolic pressure. SAI and DAI are in a close relation to the coronary perfusion, because it is mainly maintained in diastole.
TensioMedTM Arteriograph: a new era in measuring arterial stiffness
Increased and abnormal arterial stiffness is the early sign of arteriosclerosis. The arterial stiffness is calculated from the above parameters, resulting in a classification of optimal, normal, increased or abnormal values. The measurement takes only 2 minutes. TensioClinic arteriograph provides reliable and quick screening method detecting arteriosclerosis in its early stage, when pathological procedures still could be positively influenced.
What are the parameters TensioMedTM Arteriograph calculates?
- Systolic and
Diastolic blood pressure (Sys, Dia)
- Mean arterial
pressure (MAP)
- Pulse pressure (PP)
- Heart rate (HR)
- Augmentation index
(AIx)
- Heart rate corrected
augmentation index (AIx80)
- Return time (RT
S35)
- Pulse wave velocity
in the aorta (PWV S35)
- Left ventricle
ejection duration
(ED)
- Systolic area index
(SAI)
- Diastolic area index (DAI)
Specifications
|
Technique: |
Oscillometric |
|
Sensor: |
upper arm
cuff |
|
Number of
sensors: |
1 |
|
Acquisition
period: |
2
minute |
|
Data
transfer: |
wireless IrDA
communication |
|
Power
requirements: |
4 Batteries in
size AA |
|
Size: |
128 x 77 x 45,5
mm |
|
Weight: |
310
g |
|
Standard and
Comformity: |
CE mark (class
IIa) |
Specifications subject
to change without prior notice. Refer to the TensioMed User's Manual for
Complete description, instructions, warnings cautions and
specifications.
Downloads (right click and Save Target As)
User's manual (TensioClinic and TensioMed)