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Vmed Technology
Vet-Dop2 TM
Doppler Blood Pressure System
Model BF2
User Manual
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Table of Contents
ACCESSORIES AND COMPONENTS ............................................................................................ 3
PRECAUTIONS ............................................................................................................................... 3
Chapter 1 Description .................................................................................................................. 4
Vet-Dop2 Doppler ...................................................................................................................... 4
Doppler Technique ..................................................................................................................... 5
Description of Controls and Indicators ........................................................................................ 5
Control Panel ............................................................................................................................. 6
Connector Panel ........................................................................................................................ 7
Chapter 2 Preparation and Use ..................................................................................................... 8
Doppler Preparation ................................................................................................................... 8
Cuff Selection ............................................................................................................................. 9
Doppler Procedure ................................................................................................................... 10
Tips for using the Doppler: ....................................................................................................... 12
Clinical References .................................................................................................................. 13
Hypertension in an unstressed, awake animal.......................................................................... 13
Using the Doppler as a Surgical Monitor .................................................................................. 13
Chapter 3 Service, Maintenance and Specifications ............................................................... 14
Service and Support ................................................................................................................. 14
Cleaning and Maintenance ....................................................................................................... 14
Specifications ........................................................................................................................... 15
Troubleshooting ....................................................................................................................... 16
Appendix A Limited Warranty ................................................................................................... 17
WARRANTY RETURN POLICY ............................................................................................... 18
Appendix B Accessories and Replacement Parts ................................................................... 19
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ACCESSORIES AND COMPONENTS
Check Vet-Dop2 storage pouch and ensure the following items are included
Vet-Dop2 Doppler
Sphygmomanometer
Headset
Battery charger
Coupling gel
Six cuffs (#1, #2, #3, #4, #5(or #7), #8
Six probe attachment straps
Application DVD (NOTE: DVD shows photos of an earlier Vet-Dop model)
Optional protective pouch
PRECAUTIONS
CAUTION: Use only the battery charger provided by Vmed. Laptop charging plugs
may appear identical but their use may damage electronics and void the
warranty. (NOTE: For safety, the Vet-Dop2 will not operate under AC/charger
power. Unplug the charger before use.)
Protect sensor face from sharp objects and clean often
Grasp the sensor plug to insert and remove the sensor. Do not pull on cable.
For veterinary use only. Vet-Dop2 does not have FDA registration for human use.
Do not use in the presence of flammable anesthetics.
Protect the Vet-Dop2 and cable connectors from moisture (See cleaning
instructions in Chapter 3).
Do not autoclave the Vet-Dop2 or accessories.
Do not disassemble the Vet-Dop2 enclosure. It contains no operator serviceable
components and opening the enclosure voids the warranty.
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Chapter 1 Description
Vet-Dop2 Doppler
Vmed designed the Vet-Dop2 for veterinarians to measure systolic blood pressure on
awake animals; to check blood pressure in surgery; to monitor blood flow at the
extremities during surgery and to check for intact blood vessels after trauma and
before amputation. The non-invasive Doppler technique is the method of choice for
measuring blood pressure in animals weighing less than 10 pounds, especially cats.
Other methods, including monitors that use the oscillometric technique even with
small animal validated software, may not calculate pressures as quickly especially on
awake, smaller patients. The-Dop2 also works well on larger breeds and can detect
blood flow at the base of the tail in horses.
Monitor blood flow sounds with the integral speaker or with the headset, which
when plugged in, disables the speaker since speaker sounds may startle the animal.
The Vet-Dop2 uses a sensitive 9.4 MHZ, focused piezo-electric sensor held in place
with the finger and thumb of one hand while stabilizing the limb with the remaining
fingers. Use one of the Velcro straps to attach the sensor to the limb for long term
monitoring. A pressure pump and gauge (Sphygmomanometer), stereo audio
headphones, six cuffs, instructions and a procedural video are included with each
Vet-Dop2. The cuff set covers most animals from kittens to large dogs with limb
circumferences from 3.3 cm to 16.8 cm.
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Doppler Technique
Doppler detects blood flow in arteries and veins. Doppler blood pressure is a manual
technique using a Doppler flow detector to listen to electronically produced blood
flow sounds with the sensor placed proximal to a cuff of suitable size. Use the
sphygmomanometer to inflate the cuff until the artery is occluded and the blood
flow stops. Increase the pressure 20 to 30 mmHG above the occlusion pressure and
then decrease the pressure by slowly deflating the cuff using the thumb valve on the
pump. When blood flow audio resumes, read the systolic pressure on the gauge as
the needle passes this point. For accuracy record five measurements, eliminate the
highest and lowest measurements and take the mean of the remaining. The mean is
the indirect systolic blood pressure.
The Doppler technique depends on successful acquisition of the Doppler blood flow
signal. Body temperature, vasoconstrictive drugs, a bent limb, too much hair and
inadequate lubrication of the area contribute to difficulties in acquiring an adequate
signal.
Description of Controls and Indicators (Refer to Figures 1 and 2)
Indicator Lights (NOTE: LED locations are only visible when illuminated.)
LOW BATTERY (Status) Light: The LOW BATTERY LED illuminates YELLOW when the
unit requires a charge (NOTE: You may use the Vet-Dop2 at normal
performance for about an hour after light first illuminates).
CHARGE Light: The charge light will turn YELLOW or AMBER during charging. The light
will turn GREEN when the battery is fully charged. (NOTE: Battery requires up to
4.5 hours to become fully charged.
POWER Light: A red LED over the power button will illuminate when the unit is on.
(NOTE: Press and immediately release the power button to turn on; press and
hold button down to turn off)
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Control Panel
Figure 1 – Top panel with controls and indicator lights
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