CardioQuip MCH-1000 Operators & Service Manual page 30

Page 28
WARNING: The use of patient retention devices may be necessary to keep the
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patient positioned on a patient blanket. Any such devices must not block the fluid
pathways in the patient blanket or the MCH tubing.
WARNING: Warming transdermal medications (patches) can increase drug
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delivery, which may result in possible harm to the patient.
WARNING: Do not use a patient blanket distal to arterial cross clamping to heat
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a patient. This can result in burn injuries to the patient.
WARNING: Do not use a patient blanket to heat a patient with an ischemic limb.
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This can result in burn injuries to the patient.
For most applications, CardioQuip recommends that the patient blanket be laid flat, without
creases or wrinkles, between the bed or table and the patient, according to the diagram below.
The blanket should be covered with a thin intermediate layer of insulating material, such as a
sheet or thin blanket, to prevent patient discomfort and promote even heat transfer. The MCH
should be located below the level of the bed or table, to reduce the potential water volume in
contact with the patient and bedding in case of a leak.
In this configuration, the MCH is capable of heating the contact surface temperature of the
patient blanket from 23±2˚C to 37˚C in approximately three minutes. While the MCH is in RUN
mode and maintaining a stable temperature, the water temperature displayed on the MCH screen
is typically within 2˚C of the surface temperature of the patient blanket. While actively heating
or cooling, the temperature displayed on the MCH screen will typically "lead" the surface
temperature of the patient blanket by 3-4˚C. In other words, when heating, the displayed
temperature will be slightly higher than the blanket surface, and when cooling, the displayed
temperature will be slightly lower than the blanket surface. It is the operator's responsibility to
monitor the actual temperature of the blanket and the patient, in order to ensure safe operation.
CardioQuip Modular Cooler-Heater Operator/Service Manual