stemoscope STEMO300 User manual
1
Smart Wireless Stethoscope
(Model: STEMO300)
Instruction Manual
(DRAFT)
2
SAFETY WARNINGS AND PRECAUTIONS
Consult your physician before using the
device if you are not a medical professional.
Keep Stemoscope II at least 1 meter away
from all radio frequency (RF) emitters,
including WIFI routers and radios. DO NOT
use Stemoscope II near strong RF signals or
portable and/or mobile RF devices. If sudden
or unexpected sounds are heard, move away
from any radio transmitting antennas.
Bluetooth Class 2 is used for data
transmission. Its maximum radio frequency
field strength is considered safe to use with
other medical devices. However, audio, video,
and other similar equipment may cause
electromagnetic interference. If such devices
are encountered, and cause interference,
immediately move Stemoscope II away from
that device and/or switch OFF Stemoscope II.
Store Stemoscope II and components in a
clean and safe place out of the reach of infants
and children.
DO NOT move, slide or push the switch
button when Stemoscope II is wet. If you do
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so, liquid droplets may go into the device and
damage the internal electrical circuitry.
Recharge the battery using only the provided
charging cable with a UL-certified charger
(not provided). DO NOT use Stemoscope II
when it is being charged.
DO NOT subject the device to extreme
temperatures, humidity, or direct sunlight.
DO NOT subject the device to strong shocks,
such as dropping the unit on the floor.
The working distance will be reduced when
objects (walls, furniture, people, etc.) are
between Stemoscope II and the connected
phone or earphones. To improve Bluetooth
connection, reduce the distance and/or allow
a line of sight between Stemoscope II and the
connected phone or earphones.
No modification of this equipment is allowed.
Switch off Stemoscope II to save the battery
power when not in use.
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CONTENT
SAFETY WARNINGS AND PRECAUTIONS ...............2
1. Introduction .......................................................................5
1.1. Indications for use .....................................................5
1.2. Specifications and technical data...................6
1.3. Signs and symbols.....................................................7
1.4. Package contents ......................................................8
2. Hardware identification............................................8
3. Basic steps to listen to the sounds.....................10
4. Record a video composed of the auscultatory
sounds and the camera view ............................................16
5. Record the sounds on a predefined body spot
16
6. More features for medical professionals ........18
7. Live stream the auscultatory sounds ............... 21
8. Share (send) a recording.......................................... 27
9. Care, cleaning, and disinfection ......................28
10. Data security .............................................................28
11. Trouble shooting ......................................................... 29
12. Electrical Safety ....................................................... 31
13. FCC Statement ........................................................36
14. Disposal.........................................................................36
15. Warranty....................................................................... 37
16. Contact information ........................................... 37
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1. Introduction
Stemoscope II (Model: STEMO300) is a smart
wireless stethoscope. It transmits audio to the
“DrStemo” app installed on a smartphone. The
“DrStemo”app provides rich functions such as
amplification, visualization, filtering, recording,
sharing, etc. The app also allows a user to access
premium cloud services, including video call
service and cloud data storage.
Before your first use, please read the manual
carefully and follow all the instructions. Please
contact us if you encountered any problems.
1.1. Indications for use
The smart wireless stethoscope is designed for
medical professionals or lay users to auscultate,
record, and transmit sounds from the heart, lungs,
abdomen, arteries, veins, and other internal
organs. The device is intended for medical
diagnostics purposes but not for self-diagnosis.
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1.2. Specifications and technical data
Item
Description
Supported
phones
iOS: 9.0 or above
Android: 7.0 or above
Frequency range
20 – 2000 Hz
Working distance
< 2 meters typically
Transportation
And storage
-10 °C to +60 °C / 15 %RH to
85 %RH / 800 hPa to 1060
hPa
Operating
conditions
+10 °C to +40 °C / 15 %RH to
85 %RH / 800 hPa to 1060
hPa
The time required for Stemoscope II to warm from the
minimum storage temperature（-25°C）between uses
until it is ready for intended use when the ambient
temperature is 20°C: 1 hour.
The time required for Stemoscope II to cool from the
maximum storage temperature（70°C）between uses
until it is ready for intended use when the ambient
temperature is 20°C: 1 hour.
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1.3. Signs and symbols
Follow operating instructions
Indicates the manufacturer of the unit,
including manufacturer’s name and address
The device must be disposed of properly
when it will no longer be used. Dispose
medical waste based on local regulations and
comply with applicable laws.
Indicates the Batch Code
Attention, see instructions for use
MR Unsafe
Bluetooth
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1.4. Package contents
Stemoscope II
Charging cable
Quick start guide
x1
x1
x1
2. Hardware identification
The switch in the left position is the OFF state.
Slide the switch to the right to start Stemoscope II.
The diaphragm makes contact with the human
body to pick up body sounds.
Switch
Diaphragm
Notification light
Charge port
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To charge Stemoscope II, plug one end of the
charging cable into the charge port and another
end to a UL-certified USB charger (not provided in
the package).
The device status can be identified by the
notification light.
Notification light
Device status
Pulsing (smoothly
fading in and out)
Waiting for Bluetooth
connection.
Blinking
Connected but not transmitting
sound.
Consistently on
Connected and transmitting
sounds.
Off
The battery is fully charged if the
device is turned off and being
charged.
Out of battery power if the
device is turned on.
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3. Basic steps to listen to the sounds
Here are the basic steps for you to use Stemoscope
II.
Step 1. Open the “DrStemo”app. If you haven’t
installed the “DrStemo”app, please search and
install it from Apple’s App Store or Google’s Play
Store.
The “DrStemo”App
The app user interface is customized for medical
professionals and lay users. The first time you use
the app, you will be asked to set your role. Please
choose the right one, because a wrong choice can
prevent you from using the device correctly. If you
want to change later, you need to re-install the app.
The app needs to read the QR code on the
diaphragm of your Stemoscope II as shown in the
picture below. Just follow the simple steps to
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