Bladder Volume Tester User’s Manual V1.02
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Chapter One Overview
1.1 Introduction
BVT01 bladder volume tester is composed of main unit, probe, etc., which is used to non-invasively
measure bladder volume with ultrasound principle. It is used to assess urinary retention and urinary
incontinence, and given the timing of implement an objective clinical catheterization to reduce the
catheterizing frequency and reduce the risk of urinary tract infections. But also by measuring the amount
of residual urine volume after voiding, evaluate the therapeutic effect of certain drugs and treatment for
urinary system diseases.
BVT01 bladder volume tester uses 2.5MHz ultrasound to mechanical sector scanning, identify the
reflected wave of the front and rear wall of the bladder to obtain the cross-sectional area of the bladder;
again through 15°intervals to automatically transform the scanning plane, based on the areas of 12
reference plane to calculate the bladder volume with ellipsoid integration.
To improve the accuracy of the operation and measurement, the screen displays the B-mode image of
section bladder and the projection of bladder; it is convenient for doctors to check the location and
determine the measurement results.
The expected service life of BVT01 bladder volume tester is 10 years. The applied part is the part
between metal ring of probe handle below 5mm and the forefront of the sound head (see Figure 12-1
“Probe regular disinfection”).
BVT01 measurement accuracy must meet the following indicators: Urine volume display resolution
is 1ml. When urine volume is within 20ml～99ml, the measurement accuracy error is less than or equal to
±15ml; urine volume is within 100ml～999ml, the measurement accuracy error is less than or equal to
15%.
In a typical commercial or hospital environment, the use of instrument depends on the following
essential performance:
1. Electromagnetic disturbance does not make the instrument generate artifacts or distortion in an
image or error of a displayed numerical value and not alter the diagnosis.
2. Electromagnetic disturbance does not make the instrument generate the display of incorrect
numerical values associated with the diagnosis to be performed.
3. Electromagnetic disturbance does not make the instrument generate the production of unintended
or excessive ultrasound output.
4. Electromagnetic disturbance does not make the instrument generate the production of unintended
or excessive transducer assembly surface.
1.2 Intended Use
BVT01 bladder volume tester is used in medical institutions for clinical measuring urine volume, to
provide the basis for the implementation of clinical catheterization and make evaluations for the residual
volume after patient voiding.
Contraindications: The equipment is not suitable for pregnant women and infants bladder scan, nor be
scanned on the wounded skin.
Warning:
This equipment can not be used at home.
Attention:
For patients with hypertrophy of the prostate, space occupying disease or
scars, there is a risk of producing a result exceeding the given accuracy range.
Warning:
This equipment can not be used to treat.
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