Covita Gastro Plus, Gastrolyzer Operating Manual

Gastro+ Gastrolyzer
®
Operating Manual
breath analysis is the new blood test
Issue 10- March 2012. Part No: LAB283
2
Gastro+ Operating Manual
English
Contents
Intended Use 3
Introduction 3
Warnings 4
Contraindications 4
Quick Start Guide 5
Pack Contents List 6
Specification 6
Instrument Layout 7
Display Symbols 8
Maintenance 9
Cleaning 9
Operation 10
Breath Test 11
Face Masks 11
Settings 12
Sounder 12
Breath-hold Countdown Timer 12
Date and Time 12
System Information 12
Zero/Calibration 13
Patient Information 14
Troubleshooting 15
Returns Procedure 16
Spares and Warranty 17
www.covita.net | tel (800)707-5751
3
Gastro+ Operating Manual
English
Intended Use
The Gastro+ Gastrolyzer® is a breath hydrogen monitor used to measure hydrogen levels in expired breath. It is intended for multi-patient use by healthcare professionals in a clinical environment.
Introduction
Hydrogen (H2) is generated in the intestinal lumen by bacterial action on carbohydrates in the large or small intestine. Once the resultant H
2
is diffused into the bloodstream and then to the alveoli, it can be detected in expiratory air. Levitt (1969)
1
demonstrated
the correlation between intestinal lumen H
2
production and H
2
excretion in expiratory
air. Accurate measurement of H
2
in parts per million (ppm) in expiratory air reveals abnormal breakdown and/or malabsorption of carbohydrates.
Operation of the monitor is straightforward. A D-piece sampling system enables end­expired breath to be sampled easily and hygienically, using single-use disposable cardboard Flatpak™ mouthpieces and disposable face masks. A colour touch screen ensures ease of operation and users can view results in a tabular or graphical format.
The Gastro
+
can be used to indicate the
following disorders:
Carbohydrate breakdown deciency
● Carbohydrate malabsorption
● Lactose intolerance
2
● Bacterial overgrowth
● Determination of time passage through
the gut.
1
Levitt, M.D. (1969): Production and excretion of hydrogen gas
in man. New Engl. J.Med. 281:122-127
2
Fleming, S.C. (1990): Evaluation of hand-held hydrogen
monitor in the diagnosis of intestinal lactose deciency. Ann.Clin.
Biochem. 1990;499-500
www.covita.net | tel (800)707-5751
4
Gastro+ Operating Manual
English
Warnings
● When cleaning the monitor, never use
alcohol, cleaning agents containing alcohol, or other organic solvents, as these vapours will damage the H
2
sensor
inside.
● Under no circumstances should the
instrument be immersed in or splashed with liquid.
The device cannot diagnose a specic
condition; only indicate a possible range of conditions.
● People with lung disease or chest
ailments may not be able to achieve the full breath-hold. In such cases, the user should inhale and hold their breath for as long as possible when the breath test is started, and exhale, if necessary, before the countdown has completed. Alternatively, the user can use the face mask sampling mode.
● If the
icon is displayed during
start-up, calibration is due. Please refer to page 13 for instructions. The unit may give false readings if not calibrated.
● If the
icon is displayed during start-up, the D-piece requires changing. It is recommended that the D-piece is changed every month, or more frequently if it is visibly soiled.
● The battery life is indicated by the
icon. When the
icon is displayed, the
batteries should be changed.
● The disposable Flatpak
mouthpieces are for single use only. Reuse can increase the risk of cross-infection.
● See Bedfont’s Infection Control and
Maintenance Guidelines for further information on infection control.
● Measurements from the face mask
sampling method may be lower than when using the mouthpiece. This should be considered when interpreting the results.
● Do not cover the exhaust port as this
may affect the accuracy of the test.
● Remove the D-piece between uses to
allow fresh air to circulate around the sensor.
● The Gastro+ must be switched on in
fresh air to ensure an accurate zero.
Contraindications
● Temperature may affect the accuracy
of the Gastro
+
. The instrument should be calibrated at 21°C (±4°C). If the Gastro
+
is used at a lower temperature than when it was calibrated, readings may be lower. When used at a higher temperature than calibrated, readings may be higher.
5
Gastro+ Operating Manual
English
7 The ppm value will rise,
and the highest level will remain on the screen.
8 Remove and dispose of the Flatpak
mouthpiece or face mask safely.
9 Remove the D-piece between tests to
allow fresh air to circulate around the sensor.
10 Touch the
or icon at bottom of the screen to perform another breath test. If using a mouthpiece, a
new one should be tted. If using the
facemask, this can continue to be used.
11 To switch off, press and hold the on/
off button for three seconds. The unit will auto power-off after 45 minutes of inactivity.
Quick Start Guide
1 Press and hold the on/off
button until the display becomes active, then release the button.
2 Allow the unit to display the home
screen, then insert the D-piece into
the instrument and t a new Flatpak
mouthpiece or a face mask.
3 Touch the
icon to start a breath test. Alternatively, if a face mask is being used, press the
.
4 If
has been touched, the breath-hold countdown will begin. The patient should inhale deeply and hold their breath while the display counts down to zero. If the patient is unable to hold their breath for the full countdown, see Warnings on page 4 or Settings on page 12. Please see step 6 if the face mask is being used.
5 An audio bleep will sound during the
last three seconds of the countdown.
6 At the end of the
countdown, the patient should blow slowly into the mouthpiece, aiming to empty their lungs completely. If the face mask is being used, the patient should breathe normally but be encouraged to exhale as much as possible.
www.covita.net | tel (800)707-5751
Loading...
+ 14 hidden pages