MDD VS400 User manual

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Contents
1. Warnings and Cautions........................................................ 2
1.1 Warnings .................................................................2
1.2 Cautions ..................................................................3
2. Vein Finder Overview ......................................................... 4
2.1 Intended Use ...........................................................4
2.2 Product Descriptions...............................................4
2.3 VS400 Symbol Definitions .....................................6
2.4 Displays ..................................................................7
2.5 Accessories .............................................................8
2.6 Product List.............................................................8
3. Product Usage ..................................................................... 9
3.1 Operating Instructions.............................................9
3.2 Focus.....................................................................11
3.3 Projected Image Description.................................11
3.4 Software Version...................................................12
4. Cleaning and Maintenance................................................ 13
4.1 Cleaning ................................................................13
4.2 Maintenance..........................................................13
5. Battery............................................................................... 14
5.1 Build-in Battery......................................................14
5.2 Charging................................................................15
6. Storage and Transportation ............................................... 16
7. Technical Specifications.................................................... 17
7.1 Classification.........................................................17
7.2 VS400 Description................................................17
8. Common Faults and Solutions .......................................... 18
9. Disposal............................................................................. 19
10. Warranty............................................................................ 19
10.1 Warranty................................................................19
10.2 Limitation of Liability...........................................20

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1. Warnings and Cautions
Pay attention to the following safety instructions (including, but
not limited to) when using the instrument, to avoid the possibility
of the damage.
1.1 Warnings
VS400 vein finder contributes to find superficial vein
location, but is not a substitute for sound medical judgment
which is based on visual and tactile vein location and
judgment skills.
VS400 vein finder should be used as a supplement for
qualified professionals to determine the location of the veins.
VS400vein finder only displays superficial vein. Due to the
patient factors, the depth can be detected is limited.
VS400 vein finder only displays superficial veins, and does
not provide diagnostic information.
Do not throw VS400 vein finder to fire, in case of battery
explosions.
VS400 vein finder don’t include components which the
customers can maintain. All components should be
purchased from the authorized department.
Please use the original charging equipment to charge the
device, which can avoid the potential risk.
The safety could decrease when using the unofficial
accessories, so please only use the official accessories.

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1.2 Cautions
VS400 vein finder must be repaired by authorized and
qualified staff.
Do not shine vein display light to the eyes for a long time.
Keep the instrument clean and avoid oscillation.
Keep the instrument dry and avoid any liquid flow into the
VS400vein finder or its adapter.
No high-temperature sterilization process. Do not use a beam
of electrons or γ radiation sterilization.
Do not use the electromagnetic interference or high-
frequency interference in the vicinity of the device to ensure
that the instrument is not the original environment of strong
sources of electromagnetic interference, such as interference
between wireless transmitters or mobile phones and the like.
Inspect the device every two months. If you find obvious
damage, it is recommended to replace the damaged parts
before use.
The safety checks must be done by people who are executed
by properly trained and usually have 1 or 2 years for testing
and inspection procedures that specified by the public
institutions.
Check the safety-related labels easy to identify. Verify that
the device is functioning and consistent with description of
the manual.

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2. Vein Finder Overview
2.1 Intended Use
The VS400 vein finder is a portable instrument to help
medical professionals to locate certain superficial veins.
The VS400vein finder should not be used as the sole method
for locating veins, and should be used by a qualified medical
professional.
When using the VS400 vein finder, medical practitioners
should always follow the appropriate medical protocols and
practices which are required by their medical facility, to
exercise sound medical judgment.
The VS400 vein finder can be used in the situation that the
determination of vein location is necessary. When used
properly, the VS400 vein finder enables users to locate
certain superficial veins in connection with medical
procedures, such as venipuncture.
2.2 Product Descriptions
The VS400 vein finder detects veins beneath the skin by
using infrared light, then projecting the image of the veins on
the skin surface directly above the veins.
Qualified medical personnel can observe the displayed
vasculature to find a vein of the right size and the location of
superficial veins for venipuncture and other medical
procedures.

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The VS400 vein finder only shows superficial vasculature.
The maximum depth of displayed veins varies depending on
the patients.
The causes for the different depths of displayinclude, but are
not limited to, vein depth, skin conditions (e.g. eczema,
tattoos), hair, scarring or otherhighly contoured skin surface,
and adipose (fatty) tissue.
When held directly overhead, the VS400 vein finder
accurately locates the center of a vein.
The width of displayed veins may differ from the actual
width, due to the physical differences of patients and the
width of veins. But the center line of the vein is accurate.
The VS400 vein finder is internally powered by battery and
approved for continuous operation.
The VS400 vein finder is not protected from ingress of water.
No training is required to operate the VS400 vein finder.
The VS400 vein finder requires no routine or preventative
maintenance, but needs regular cleaning.

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2.3 VS400 Symbol Definitions
Material can be recycled
DC power
Caution
Manufacturer
Date of manufacture
Can't be abandoned with the life garbage
Contact number of manufacturer
Refer to operating instructions
Serial number
Imaging unit interface
Charging cradle interface
Fragile, please take care
No rain, keep dry
Up direction
No turning over
The limitation for stacking layers is 5
Packaging can be recycled

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2.4 Displays
Imaging Unit
Charging Cradle

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2.5 Accessories
VS400 is a portable model of the vein finder. VS400 is
lightweight and equipped with high-capacity rechargeable
lithiumbattery. Medical staffs can hold it easily to assess and
locate the patient’s vascular.
VS400 is composed by the imaging unit and charging cradle,
the imaging unit is used to project vein image.
There are optional supports for VS400.The mobile and fixed
supports can be chosen to support the device.
2.6 Product List
No.
Name
Quantity
1
Imaging unit
1
2
Charging cradle
1
3
Power adapter
1
4
User's manual
1
5
Product certification
1
6
Warranty card
1
7
Calibration card
1

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3. Product Usage
No installing or setting is required before using the VS400 vein
finder.
3.1 Operating Instructions
Main Switch: Switch to “OFF”, the device is power off.
Switch to “ON”, press Power button, the device is power on
and can achieve functions when you press the appropriate
buttons.
Power: Power button.
Boot: Press Power button for about 0.5 seconds, until the
instrument "beep" twice, then the VS400 will be power on.

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Off: Press Power button more than 2 seconds, until the
instrument "beep" twice, the Power button indicator lights off,
the instrument shut down.
Standby: When device is power on and the projector is
illumed, by short pressing the Power button (less than 0.5
seconds), the device will go to standby mode and the
projector will be turned off.
Wake Up: When device is in standby mode, by short pressing
the Power button (less than 0.5 seconds), the device will beep
and the projector will be illumed
Color: Button to change color.
There are five projection colors to choose. The colors are
cyan, green, natural, red, blue. The default color is cyan.
Size: Button to adjust the size of the projected image.
There are three projection sizes to choose, full size, 2/3 size
and 1/2 size. The default size is full size.
Inverse: Button to change the brightness contrast.
Projected image of the blood vessel becomes brighter, while
the surrounding tissues become dimmed. The projection of
the blood vessel is dim by default.
Mode: Button to change mode.
Short press Mode key (about 0.5 seconds) can achieve
different brightness switching. There are 3 degrees of
brightness. Long press (about 2 seconds) can achieve
switching mode between universal mode and fine detail
mode. Boot defaults to the second degree of brightness and
universal mode.

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Note: Inverse and size can be selected at universal and fine detail
mode. If one mode is active, the former model will be
replaced immediately.
Note: Universal: Standard picture mode for all patients.
Note: Fine detail mode: Find the smaller and deeper veins.
3.2 Focus
Hold the imaging unit and place it directly over the
observation area from about 7.87 inches (200mm).
Turn the imaging unit to ensure that the window of the
imaging unit is perpendicular to the observation area.
Adjust the height slightly till the texts located at the edge of
the image achieve the most clear. The focus is complete.
Note: The displayed vein might be thicker or thinner than the
actual vein, because of the distance from the VS400 to skin,
the patient physical differences and even the different
observation modes. It is recommended that the judgment
according to standard procedures and the experienced
medical staff is priority in certain drug injection.
3.3 Projected Image Description
Projection display image
Projection display image is shown as below, where in the text
frame to display the current mode and battery information.

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3.4 Software Version
The software version of the VS400 can be displayed by pressing
the Inverse and Color button on the control panel, shown as blow.
Press the Power button to withdraw from this projected image.

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4. Cleaning and Maintenance
4.1 Cleaning
Don’t clean VS400 when it is on support. Please take it off
before cleaning.
Please unplug power cable and make sure VS400 is off
before cleaning.
The lens window needs cleaning for every months. Please
use dust-free cloth and concentration of 95% alcohol to wipe
it, then dry it naturally or use dust-free cloth to dry it.
Clean the device every two months, please use the dust-free
cloth to dip concentration of 70% alcohol to wipe the device,
then dry it naturally or use dust-free cloth to dry it.
Note: Please follow the instruction to clean the device and avoid
to scratch the lens window.
Note: Please follow the warning as above to clean VS400, if not,
the device damaged.
Note: VS400 needs periodic inspection. Please follow the
requirement of the institutions to clean and sterilize the
device every time before using.
4.2 Maintenance
Please avoid to immerse the device in any liquid or remain
liquid on it.
Don’t pressurizing or heating the device for sterilizing.
Don’t use other organic solvent and rough cloth to wipe any

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part of the device to avoid damage.
Evaluate alignment by looking for separation between
projected line and printed line of the calibration card. If there
is evident separation between the projected line and the
printed line, please stop using the device and contact the
distributor or manufacturer to maintain it.
Note: If there is abrasion or dirt on the lens window, please don’t
use VS400. If the window is damage, please contact the
distributor or manufacturer to maintain it.
5. Battery
5.1 Build-in battery
The build-in battery is inside the imaging unit.
Please fully charge the battery before using it at the first time.
Please avoid fully discharge, it is better to charge the battery
before using up.
When batteryis in the protected mode because of short circuit
or over discharge, please charge the battery to recover it.
Inspect the faction of charging and discharging every two
months, if there is any problem, please contact the distributor
or manufacturer.
The proper disposal for used batteries should meet the
specification of local regulations.
Please use the original adaptor to charge the battery.
Note: When the power is less than 3%, the instrument beeps

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continually. Short press any button (about 0.5 seconds) can
eliminate the sound. If reboot the device, the “beep” sound
will be emitted again before the battery charged.
5.2 Charging
The battery indicator is on the upper right corner of projection
image. The device needs to be charged when there is only a little
power. The following is the charging step.
(1) Connect the charging cradle and AC power with the adapter.
(2) Switch the main switch to “OFF”.
(3) Put the imaging unit into the charging cradle.
(4) When the indicator light is blue, the device is being charged.
Note: Pay attention to ensure the correct direction and incorrect
operation will damage the machine.
Note: During the charging, the operator should not put your hand
or any part of your body above the adapter for more than 1
minute, which may hurt you for a little high temperature.
(5) Determine the charging situation according to the indicator
light.

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When the indicator light is blue, the battery is not fully charged,
need to continue to be charged. When the indicator light turns
green, the battery is fully charged; it is recommended to take away
the imaging unit from the charging cradle. When the indicator light
flash, the battery temperature may be in abnormal level or the
battery may be over discharge. Please check the device, the
charging cradle and the power adapter, and re-plug the adapter to
eliminate the problem.
6. Storage and Transportation
When reserving and transporting, don’t place the device in
somewhere the temperature and humidity is too high or too
low, or the dust is heavy.
Please meet the requirements of storage and transportation.
The requirement is as below: humidity: 10-90% (non-
condensing), temperature: 0°C to 60°C .
Please take the device away from the flammable and
explosive gas source and take care to avoid impact or
vibration when transporting.

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7. Technical Specifications
7.1 Classification
Item
Class
Protection against electric
shock
Internally powered me equipment
without applied parts
Protection against
harmful ingress of water
or particulate matter
IPX0
Method(s) of sterilization
By other methods validated and
described by the manufacture
Mode of operation
Continuous operation
7.2 VS400 Description
Parameter
Specification
Weight(the imaging unit)
480g
Dimensions(the imaging
unit)
60x60x240mm
Battery
Lithium-ion Battery, 3.6V, 4.3Ah
Battery working time
5 hours
Charging time
3 hours
Adapter parameter
Rated Input :100-240VAV, 50-
60Hz, 0.4A
Rated Output: 5VDC, 2A
Peak wavelength of
infrared light
About 850nm

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Valley wavelength of
visible light
About 530nm
Atmospheric
Pressure(operating and
storage)
700hPa to1060hPa
Operating humidity
10-90% (non-condensing)
Operating temperature
10°C to 30°C
Storage humidity
0-90% (non-condensing)
Storage temperature
0°C to 60°C
8. Common Faults and Solutions
Symptom
Reason
Solution
Boot no
display
battery run out
Charge battery
Power error
Reboot after restart main switch
Cannot
boot
System error
Reboot after shutdown
Reboot after restart main switch
Display
no image
Operation error
Reboot after restart main switch
Note: If you find other faults and cannot be solved, please contact
the manufacturer which will provide essential circuit
diagrams, component part lists, descriptions, calibration
instructions to assist to service person in parts repair.

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9. Disposal
The service life for the device are five years (from the
production date). To properly dispose the used device please
contact the distributor or the manufacturer, or meet the
specification of local regulations after the expiration date.
The proper disposal for packaging should meet the
specification of local regulations or the country’s
environmental protection regulations.
10.Warranty
10.1 Warranty
The VS400 should work in the temperature between 10°C to
30°C. Malfunction would occur out of this range.
When the VS400 is not operating properly, please turn off
the device.
If any unknown fault appears, please stop using the VS400
immediately. Then turn off the device and contact our
company support.
Our company warrants the VS400. In period of 18 months
for imaging unit and 6 months for batteryafter the purchasing
date, the device is of sound materials, workmanship and
conforms to the manufacturer’s specifications.
The warranty period for accessories is: The imaging unit –
18 months, Battery –6 months.