OPERATION
BLANKETROL III, Model 233
OPERATION AND TECHNICAL MANUAL
Page 23 of 131
reading reaches Set Point, the system continues circulating the water through the system, but stops
heatin
g / cooling it. If the patient’s temperature reading deviates from Set Point, the unit will
automatically resume full operation in
GRADIENT 10C MODE
until the patient's temperature again
reaches Set Point. As in all cases, the patient's skin integrity must be closely monitored.
In
GRADIENT VARIABLE MODE,
the operator specifies the patient’s Set Point temperature and the
BLANKETROL III System operates as in
AUTO CONTROL MODE
except for the following. The
system monitors the patient’s temperature and maintains the water in the BLANKETROL III
equipment at a
programmable
temperature difference from the patient’s temperature reading.
(NOTE: This temperature difference is set by the operator.) This will
gradually
bring the patient’s
temperature to Set Point according to the
specific needs of the patient
determined by the caregiver.
When the patient’s temperature reading reaches Set Point the system continues circulating the
water through the system, but stops heating / cooling it. If the patient’s temperature reading
deviates from Set Point, the system will automatically resume full operation in
GRADIENT
VARIABLE MODE
until the patient's temperature again reaches Set Point. As in all cases, the
patient's skin integrity must be closely monitored.
In
SMART MODE,
the BLANKETROL III System compares the patient’s temperature to the Set
Point temperature selected by the operator. Every 30 minutes the system adjusts the water
temperature in the BLANKETROL III Equ or
– 5.0ºC (as appropriate). Once the patient
reaches Set Point the SMART MODE becomes temporarily inactive and the unit simply maintains
the patient’s temperature. If the patient’s temperature deviates from Set Point, the unit
automatically switches to SMART MODE until the patient's temperature again reaches Set Point.
NOTE: the lowest allowable water temperature is 4°C (39.2°F), and the highest allowable water
temperature is 42°C (107.6°F). As in all cases, the patient's skin integrity must be closely
monitored. NOTE: SMART MODE can be used while operating in GRADIENT 10C MODE or
GRADIENT VARIABLE MODE. SMART MODE can be turned on and off at will, and is indicated as
such by the green LED next to the SMART MODE button. As in all cases, the patient's skin integrity
must be closely monitored.
In
MONITOR ONLY MODE,
the BLANKETROL III System
can monitor and display the patient’s
temperature within the following range, 10°C
– 50.0°C (50°F - 122°F). In order to for this mode to
function, the operator must insert or attach a 400 Series probe in or to the patient and connect the
probe / probe connecting cable to the BLANKETROL III unit. In this mode, the system does not
heat, cool, nor circulate the water. NOTE: Disposable Temperature Probes & Associated Probe
connecting cables (for use with Disposable Temperature Probes) can be found on Table 6-8.
1-5.2. Heating System
The BLANKETROL III heating system consists of an immersion heater, water temperature control,
and three high temperature safety devices. Temperature ranges are described in Section (1-5.5.).
The immersion heater is located in the circulating reservoir. The water circulating in the reservoir
flows around the immersion heater and is warmed.
The heating system is operational whenever the control system calls for an increase in the
temperature of the water in the BLANKETROL III equipment. It is important to note that the rate of
change in the temperature of the water in the BLANKETROL III equipment is not directly pro-
portional to the rate of change in the patient’s temperature.