Pulse Wave Measuring DeviceViewWave

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Features

One-arm measurement in sitting position

It is as easy to operate as a sphygmomanometer and does not require any difficult manual procedures.

Self-measurement in 2.5 min

You can self-assess your vascular stiffness and vascular spreading in 2.5 min.

Visualization of blood vessel condition with our original index “Supple Graph"

Measured vascular stiffness and vascular spreading are plotted as a “Supple Graph”. Memory function and print function
(sold separately) for convenient daily health management.

How to Use

① Insert your upper arm into the arm band unit in the same way you would a blood pressure cuff.
② Click the “Start Measuring” button to automatically start measurement.
③ The measurement results are displayed on the display. The measurement results can also be printed out.

How to Read the Results

It has been reported that vascular suppleness can be improved through routine exercise and nutrition.
For more information on how to improve suppleness, see Vascular Times(in Japanese).

※The suppleness graph is an original vascular index jointly developed by LaView Corporation and Saraya Co.
※Vasodilation Rate and Volume Modulus are not intended for diagnostic purposes.

Background

Arteriosclerosis is a progressive state of cholesterol accumulation in the intima of blood vessels and loss of elasticity of the vascular wall. As arteriosclerosis progresses, blood flow tends to become stagnant, and thrombus formation makes it
easier for myocardial infarction and cerebral infarction to occur.

Various testing methods have been developed for the early detection of arteriosclerosis, and their clinical significance is
being investigated. Among them, the Flow Mediated Dilation(FMD)is attracting attention as a test that can detect the
earliest signs of arteriosclerosis.

ViewWave measures vascular suppleness by measuring vascular spreading (Vasodilatation Rate) and vascular
stiffness(Volume Modulus).

Principle of Calculating Vascular Suppleness

ViewWave non-invasively examines blood vessels by utilizing a non-stationary plethysmograph technique.

The cuff is pressurized, held at a pressure higher than the subject's blood pressure, and then slowly evacuated and depressurized (left half of Figure A). Compared to when there are no blood vessels in the arm, when there are blood vessels, the cuff pressure drop causes the blood vessels to dilate and the pressure drop is slower. The difference between these two
curves corresponds to the arterial volume (Fig. B). This yields the blood pressure-arterial volume curve (Fig. C), and the
slope of the curve gives the volume modulus (Vascular stiffness).

After descending, if the exhaust is stopped and the cuff is held at a constant volume, the artery dilates and the cuff
pressure increases slightly (right half of Fig. A). Based on this change in pressure, the arterial dilatation rate
(Vasodilation Rate) can be estimated. Use code with caution.

“Development of a Vascular Suppleness Measurement System Based on the Law of the Tube,” Aichi Prefecture Priority
Research Project, Knowledge Hub Aichi.

Reference

A joint study with Hiroshima University and the National Cerebral and Cardiovascular Center has reported that vasodilation rate (pFMD) measured with ViewWave correlated significantly with FMD value (uFMD) measured with conventional
ultrasound echo. For more information, please refer to the Scientific Information(in Japanese).

Situations of Use

The Vascular Suppleness Check by ViewWave is useful for the following
Use code with caution. ☆Check your daily vascular health
☆Reviewing your daily habits
☆Check the results of activities to maintain vascular health and provide feedback

The simplicity of the measurement allows it to be used in a variety of situations as a daily health management tool.

●Hospitals and Clinics
Confirmation of treatment effects and motivation to patients through daily use.
●Elderly healthcare facilities and Public facilities
For supporting health promotion of facility users.
●Workplaces
For motivating employees as part of health management.
●Pharmacies
As part of health events and health support programs.

※Diagnosis can only be performed by a doctor.

Specifications

Product Specs

Use code with caution.

Basic Specifications ※in Japan

Options

Pamphlets and Instruction Manuals（in Japanese）