Huntleigh D900 User manual

HIGH SENSITIVITY
POCKET DOPPLERS
D900/D920/D930

Table of Contents
Doppler Measurement Sites and Recommended Probes ......3
1. Safety .................................................................................4
1.1 Warnings.................................................................................................4
1.2 Patient Applied Parts.............................................................................5
2. Introduction .......................................................................6
2.1 Unpacking / Preliminary Checks..........................................................6
2.2 Battery Insertion / Relacement.............................................................6
2.3 Product Controls....................................................................................7
2.4 Product Labelling...................................................................................8
3. Operation ...........................................................................9
3.1 Vascular Mode (D900 Only)...................................................................9
3.2 Obstetric Mode ......................................................................................10
3.3 After Use.................................................................................................11
4. Care and Cleaning ..............................................................12
4.1 General Care...........................................................................................12
4.2 General Cleaning and Disinfecting .....................................................13
4.3 Cleaning and Disinfecting Patient Applied Parts................................13
4.4 Maintenance and Repair........................................................................14
5. Specifications ....................................................................15
5.1 Equipment Classification .....................................................................15
5.2 Standards Compliance..........................................................................15
5.3 General ...................................................................................................16
5.4 Environmental........................................................................................16
6. End of Life Disposal............................................................17
7. Warranty & Service ............................................................18

Doppler Measurement Sites and Recommended
Probes
19
10
11
12
13
14
16
17
15
18
19
20
8
3
2
4
5
6
7
1 Jugular Vein
VP4HS, VP5HS
2 Subclavian Vein
VP4HS, VP5HS
3 Fetus
OP2HS, OP3HS
4 Femoral Vein
VP4HS, VP5HS
5 Great Saphenous Vein
VP5HS, VP8HS, EZ8
6 Small Saphenous Vein
VP8HS, EZ8
7 Posterior Tibial Vein
VP8HS, VP10HS, EZ8
8 Posterior Tibial Artery
VP8HS, EZ8
9 Vertebral Artery
VP4HS, VP5HS
10 Carotid Artery
VP5HS, VP8HS, EZ8
11 Subclavian Artery
VP4HS, VP5HS
12 Brachial Artery
VP8HS, EZ8
13 Ulnar Artery
VP8HS, EZ8
14 Radial Artery
VP8HS, EZ8
15 Femoral Artery
VP4HS, VP5HS
16 Digital Artery
VP8HS, VP10HS, EZ8
17 Penis
VP10HS, EZ8
18 Popliteal Artery
VP5HS
19 Metatarsal Artery
VP8HS, VP10HS, EZ8
20 Dorsalis Pedis Artery
VP8HS, VP10HS, EZ8

4
Safety
1. Safety
Before using this equipment, please study this manual
carefully and familiarise yourself with the controls,
display features and operation. Ensure that each user fully
understands the safety and operation of the unit, as mis-
use may cause harm to the user or patient, or damage to the
product.
We recommend that exposure to ultrasound should be kept
As Low As Reasonably Achievable - (ALARA guidelines). This
is considered to be good practice and should be observed at
all times.
Please keep these Instructions for Use to hand for future reference.
Attention, consult this manual. Refer to safety section.
Attention, consult accompanying documents / Instructions for Use
1.1 Warnings
Do not use in the presence of flammable gases such as
anaesthetic agents.
Do not use in the sterile field unless additional barrier
precautions are taken.
Do Not :
• immerse in any liquid, (except D920/D930 probe)
• use solvent cleaner,
• use high temperature sterilising processes (such as
autoclaving),
• use E-beam or gamma radiation sterilisation.
The main unit is not waterproof and must not be immersed. For
underwater use where contamination or cross-infection may
occur, additional barrier precautions must be taken.
Do not use on the eye.

5
Safety
Do not dispose of batteries in fire as this can cause them to
explode.
Do not attempt to recharge normal dry-cell batteries. They may
leak, cause a fire or even explode.
This product contains sensitive electronics, therefore, strong
radio frequency fields could possibly interfere with it. This
will be indicated by unusual sounds from the loudspeaker. We
recommend that the source of interference is identified and
eliminated
Any equipment connected to the waveform output socket must
be compliant with IEC60601-1:2005.
Connect headphones only to the headphone socket.
Dopplex Dopplers are screening tools to aid the healthcare
professional and should not be used in place of normal
vascular or fetal monitoring. If there is doubt as to vascularity
or fetal well-being after using the unit, further investigations
should be undertaken immediately using alternative
techniques.
1.2 Patient Applied Parts
As defined in IEC60601-1:2005, the patient applied parts of the Dopplex
Dopplers are the ultrasound probes.

6
Introduction
2. Introduction
2.1 Unpacking / Preliminary Checks
Contents
D900 Only
INSTRUCTIONS
FOR USE
Delivery Inspection
Huntleigh takes every precaution to ensure that goods reach you in perfect
condition. However, accidental damage can occur in transit and storage.
For this reason we recommend that a thorough visual inspection is made
immediately the unit is received. Should any damage be evident or any parts
missing, ensure that Huntleigh or your distributor is informed at once.
Storage
Should the unit not be required for immediate use, it should be re-sealed into
its original packing after carrying out the initial delivery inspection, and stored
under covered conditions at a temperature between -10°C to +40°C, and
relative humidity of 10% to 93% non-condensing.
2.2 Battery Insertion / Relacement
123
Note: Remove the battery if the unit is not likely to be used for
some time.

7
Introduction
2.3 Product Controls
12
3
4
5
6
D900 D920
D930
1●●Headphone Socket
2●Waveform Socket
3●●LED Panel
4●●Loud-speaker
5●●On/Off Button
6●●Probe Holder
7●●Volume Control
8●Cal Button
9●●
Battery
Compartment
10 ●●Pocket Clip
8
9
10
7

8
Introduction
2.4 Product Labelling
Applied parts (ultrasound probes are type B according to the
definitions in IEC60601-1:1988
Power On/Off Battery
This symbol signifies that this product, including its accessories
and consumables is subject to the WEEE (Waste Electrical and
Electronic Equipment) regulations and should be disposed of
responsibly in accordance with local procedures.
Attention, consult this manual. Refer to safety section.
Attention, consult accompanying documents / Instructions for Use
This symbol signifies that this product complies with the essential
requirements of the Medical Devices Directive
93/42/EEC as amended by 2007/47/EC
Alignment mark Waveform Output Socket
Volume Headphone Socket
+40°C
-10°C
Temperature
Limitations
“MAX
93%
RH”
Limits of Relative Humidity
SN Serial Number REF Reference Number
Keep Dry Do not use hook
Fragile Cardboard packaging can be
recycled.

9
Operation
3. Operation
Refer to diagram on page 3 for Doppler Measuring sites and
Recommended Probes.
To connect the probe, align the arrow on the connector with the slot on the
probe and push firmly.
To disconnect the probe, pull the connector sharply. DO NOT pull the cable.
Note: During use, an automatic noise reduction feature operates on low
level signals to improve sound quality.
LED Indicators
Green LED - indicates power ON
Yellow LED - flashes when battery is low
Coupling Gel
Use water based ultrasound gel ONLY.
3.1 Vascular Mode (D900 Only)
The D900 will select vascular mode when a vascular probe is connected to the
control unit.
Vascular Probes
Five probes are available for vascular examinations:
VP4HS 4MHz ±1% for deep lying vessels
VP5HS 5MHz ±1% for deep lying vessels and oedematous limbs
VP8HS 8MHz ±1% for peripheral vessels
VP10HS 10MHz ±1% for specialist superficial applications.
EZ8 8MHZ ±1% “Widebeam” for peripheral vessels.

10
Operation
Clinical Use
Apply a liberal amount of gel on the site to be examined. Place the probe at
45° to the skin surface over the vessel to be examined. Adjust the position of
the probe to obtain the loudest audio signal. High pitched pulsatile sounds are
emitted from arteries while veins emit a non-pulsatile sound similar to a rushing
wind.
For best results, keep the probe as still as possible once the optimum position
has been found. Adjust the audio volume as required.
Waveform Recording - D900 Only
The D900 can be connected to a chart recorder by using a suitable lead that
plugs into the Waveform socket. (For more information on the chart recorder,
refer to the manufacturer’s handbook).
Cal Function
The baseline and sensitivity of the chart recorder can be set up using the Cal
function. This generates a zero velocity baseline and a sequence of pulses as
shown below:
Cal Pulse
Two levels of calibration pulses are provided. While Cal is active, calibration
tones synchronised to the calibration pulses are superimposed on the audio
signal.
If the button is pressed and held, then the calibration sequence is repeated.
When the calibration sequence is complete, normal operation is resumed.
3.2 Obstetric Mode
D900 only
Obstetric mode is automatically selected when an obstetric probe (OP2HS/
OP3HS) is connected to the control unit.
In this mode the waveform output and Cal function are disabled.