12
10545100-Australia Rev.
– 08/2018
Directions:
1. Open N
2
O / O
2
cylinder valves
2. Press the On/Off key to On state.
3. Using the LPM FLOW key pad, set flow rate of O
2
to desired rate, keep bag about 3/4 full.
4. Set % O
2
concentration to desired level as read by percentages shown on the digital display. Use arrow controls until
desired level is achieved. Practice titration with 10% nitrous upward movements every 60 seconds until endpoint
achieved. Patients may typically experience relief of anxiety, tingling in extremities, and euphoria. Patients typically
require less than 50% Nitrous.
5. Watching primary digital display, LPM FLOW may be re-adjusted to bring the total flow of gases to desired level.
Breathing bag will ideally go from ¼ to ¾ full during inhalation and exhalation cycles.
6. When the procedure is nearing completion, amounts of N
2
O should be decreased. Terminate the flow of N
2
O and deliver
100% O
2
to begin a minimum post-oxygenation period of 3 to 5 minutes. Assess the patient for appropriate recovery.
Administer additional O
2
if necessary. Titration and post-procedure 100% O
2
will minimize Nitrous exposure to the
operatory, potential patient side effects of lethargy, headache, or nausea, and any potential adverse effects of Nitrous
diffusion into air filled cavities.
7. When procedure is finally completed, turn off using On/Off key.
8. Turn OFF the gas supply of the cylinders at the end of the day.
MAINTENANCE
The Digital MDM Mixer is a precision analgesia mixing unit.
As with any medical instrument, it requires periodic
inspection and maintenance. The following routine
maintenance procedures should be performed to ensure
system integrity and trouble-free service.
•
Inspect mixer, hoses, and connections daily for
damage, wear, and leaks.
•
Perform functional tests prior to each use. These tests
are described in
the “Preparation for Use” section.
•
While cleaning the outside of the unit, observe caution
so that liquid does not get inside. Matrx by Parker
recommends using a damp (wrung toward dry) cloth
moistened with a mild soap or a plastic-safe cleaner.
Do not spray directly on the case. A hard surface
disinfectant may be applied in the same manner.
CAUTION:
DO NOT submerge the unit
—use a
damp cloth.
WARNING:
Before
cleaning
the
unit,
disconnect the DIGITAL MDM mixer’s power
cord from the electrical power supply.
Fuse Replacement 220-240V
1. To replace a blown fuse, turn the unit OFF, disconnect
power to the unit by unplugging the power cord from the
wall, and then remove the power cord from the input
connector on the rear of the unit.
2. Open the fuse compartment, as shown in Figure 5.
3. Remove each blown fuse from its clip and replace it with
a 5mm x 20mm cartridge fuse, rated 2.5 amp, 250 volt,
slo-blo (time delay), part number 63882537. Two fuses
are required for the unit to operate.
Figure 5:
Fuse Replacement
