The device uses the method of ultrasound examination of the paranasal sinuses, based on the property of ultrasound reflected at the boundary of two media with different acoustic resistance. Given the direction of the beam and the position of the reflecting point, it is possible to determine the location of the structures of interest to the researcher. Echosinuscopy considers echo signals reflected from the boundaries of "soft tissue/bone", "bone/air", "bone/sinus contents", "sinus contents/bone".
The reflection coefficient of ultrasound is very different for different interfaces. At the "bone/air" boundary, there is a complete reflection of ultrasound. At the "bone/sinus contents" boundary, a partial reflection of ultrasound occurs, and part of the ultrasonic energy passes through the boundary and spreads in a liquid, for example, in the liquid contents of the maxillary.
|Power consumption of the device||no more than 2 VA|
|Input rated supply voltage||5 ± 10% V direct current from the "USB Type-C – USB" cable|
|Continuous operating time of the device from the built-in battery||at least 10 hours|
|Battery capacity of the power supply||4000 mAh (rated voltage 3.7 V)|
|Dynamic range of Ultrasonic sensor signal amplification (sensitivity)||at least 40 dB|
|Technical parameters of the adapter (charger)|
|Input rated supply voltage||220/230 В ± 10% alternating current with a frequency of 50 Hz|
|Output rated supply voltage||5 ± 10% V direct current|
|Maximum output current of the device||1 А|
|Dimensions and weight|
|Overall dimensions of the device in mm (Length×Width×Height)||267 mm×186 mm×55 mm ± 10%|
|Ultrasonic sensor with connecting cable|
|Sensor diameter||10 mm|
|Sensor length||130 mm|
|Connecting cable length||1500 mm|
|Power supply device (adapter for connecting to the power grid)|
|Adapter length||66 mm|
|Adapter width||35 mm|
|USB cable length||1030 mm|
|“Stern Sinuscope Pro”, device weight, kg|
|Main unit (1 pc.)||1.1 kg|
|Ultrasonic sensor with connecting cable (1 pc.)||0.065 kg|
|Power supply device with USB cable||0.035 kg|
|There is no indication or indication between 0 and 1.5 cm. Negative symptomatic.||Fluid in the maxillary sinus. The display is between 3.5 and 6 cm. Positive symptomatic.||Cyst or polyp in the maxillary sinus. The display is between 2 and 3 cm.|
|Fluid in the frontal sinus. The display is between 1 and 3 cm. Positive symptomatic.||Fluid in the maxillary sinus of the child. The display is between 2 and 4 cm. Positive symptomatic.|
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