Model 245 Product Safety Features; Section 3: Instructions For Use; Preparation And Setup Of The Ranger Blood/Fluid Warming Unit; Removing The Warming Set From The Ranger Blood/Fluid Warming Unit - 3M Ranger 245 Bedienungsanleitung

Model 245 Product safety features

The following chart describes the safety alert features of the Ranger blood/fluid warming unit.
Alert Type What To Look For
Over-temperature Alert indicator light illuminates and alert sounds,
alert - 43°C alphanumeric display alternately flashes a
temperature of 43°C or higher and the word "HI."
Under-temperature Alert indicator light illuminates and alert sounds,
alert - 33°C alphanumeric display alternately flashes a
temperature of 33°C or lower and the word "LO."
* Transient conditions may cause an over-temperature alert condition. These conditions include:
• There was an extreme change in flow rates (e.g., from 500 mL/min to stop flow).
• The unit was turned on and reached the set point temperature of 41°C before the warming cassette was inserted in the device.
• Fluids were prewarmed to above 42°C before being infused.
Alert Type What To Look For
Independent Alert indicator light illuminates and alert sounds,
back-up safety alphanumeric display alternately flashes a
alert - 44°C temperature of 43°C or higher and the word "HI."
Alphanumeric display is dark, alert sounds (backup
safety alert still works even if display is dark).

Section 3: Instructions for Use

Preparation and setup of the Ranger blood/fluid
warming unit
1. Attach the Ranger blood/fluid warming unit to the I.V. pole. Tighten the pole clamp
securely (see Figure 3).
CAUTION:
To reduce the risks associated with impact and facility medical device damage:
• Clamp the Ranger blood/fluid warming unit to an I.V. pole with a minimum 14"
(35.6 cm) radius wheelbase and at a height no higher than 44" (112 cm).
2. Slide the cassette into the slot in the warming unit. The cassette can only fit into the
device one way (see Figure 4, #1).
3. Prime the warming set. For more information about priming the set, refer to
instructions provided with the warming sets (see Figure 4, #2).
4. Place the bubble trap in the holder.
5. Plug the power cord into an appropriate outlet. Turn the unit ON (see Figure 4, #3). In
a few seconds the alphanumeric display will illuminate. It takes less than two minutes
to warm up to the 41°C set point temperature.
6. Begin infusion. When infusion is completed, remove the warming set and discard
according to institutional protocol.
Removing the warming set from the Ranger
blood/fluid warming unit
1. Close the inlet clamp proximal to the cassette and open all clamps distal to the cassette.
2. Disconnect the warming set from the fluid source, if applicable.
3. Allow fluid to flow to the patient (this may take 2-3 seconds). Close a distal clamp.
4. Remove the cassette from the warming unit and discard according to institutional protocol.
5. Reconnect the patient I.V. line to the fluid source to continue the infusion without warming.

Transferring the warming set from one Ranger warming unit to another

1. Follow steps 1-3 above, then remove the warming set from the first warming unit.
2. During transport, keep the clamps closed and do not infuse fluids while the cassette is outside of the warming unit.
3. Slide the cassette into the second warming unit.
4. Ensure that air is removed from the tubing.
5. Open the clamps and continue the infusion.
Description/Cause
Heater temperature rose to
43°C because of transient
conditions.*
Heater temperature has
fallen to 33°C.
Description/Cause
Heater temperature rose to
44°C. Safety backup system
is activated at 44°C and
unit shuts off power to the
heating plates.
44"
(112 CM)
Figure 3
4
Action
Observe alphanumeric display. If temperature
does not drop to 41°C (may take a few minutes),
discontinue use of unit. Call 3M.
Alerts stop when temperature rises above 33°C.
Continue use of unit. If the temperature does not
rise above 33°C, unplug the unit and call 3M.
Action
TURN OFF THE UNIT AND UNPLUG IT. Do not
use the blood/fluid warming unit. Discard the
disposable set. Call 3M
14"
(35.6 CM)
Figure 4