Heater-cooler unit HCU 40 Highest performance and safety in perfusion
Maquet’s HCU 40
Excellence in
heating and cooling
Under the brand Maquet, Getinge is offering
innovative, technologically-advanced equipment
for operating rooms and intensive care units.
Maquet’s heater-cooler unit HCU 40 is
another current example of this innovation. Combining proven temperaturecontrol technology with outstanding
performance and unique usability, the
HCU 40 provides benefits for both
the patient and clinician during complex
cardiovascular surgery procedures.
Powerful and innovative Reliable temperature control made easy
Easy, rapid and precise temperature control is essential
for a hypo- / hyperthermia unit used during extracorporeal
circulation. The heater-cooler unit HCU 40, with an
intuitively controllable color touch screen display, delivers
precise, fast and independent regulation of both patient
and cardioplegia circuit temperatures.
The first water circuit of the HCU 40 can supply temperature controlled water to the oxygenator blood heat
exchanger and to warming / cooling blankets. The second
circuit provides temperature controlled water to the
cardioplegia heat exchanger. Both temperature and water
flow are independently adjustable in each circuit.
Fast temperature change and high accuracy
The tank for the patient and cardioplegia water circuits is divided into two parts to ensure quick temperature adjustments at the outlets. The tank design also ensures that cold cardioplegia is always available. The internal mixing valve allows very fast and accurate switching from cooling to heating to cooling again. The HCU 40 can perform rapid water temperature changes with a measurement accuracy of ± 0.3 °C
Proven hygienic safety – ensured by design and optimized disinfection procedures
Exceptional cooling capacity and silent operation
The HCU 40 has exceptional cooling capacity through
its fast ice-building technique, which uses highly effective
cooling plates and a powerful compressor. The ice provides
an initial cooling effect that is significantly higher than
hypothermia units operating exclusively with a compressor
for refrigeration (e. g. flow-through cooler). The ice-making
technology of the HCU 40 results in reduced patient cooling times, greater accuracy, and faster water temperature
changes. In most cases, the HCU 40 can be operated
without a running compressor, thereby eliminating noise
and draft from the compressor and fan for silent operation.
Efficient heating and intelligent power management
The HCU 40 is equipped with extremely large capacity
heaters and intelligent electronic management of the
heating and cooling components. For example, when with
ice-making compressor is not in use, it is automatically
bypassed, and the majority of the power supply is used
for the heaters. This promotes very efficient heating
performance, minimizes patient re-warming times, and
contributes to more accurate and faster water temperature changes. e
Fast priming and automatic de-airing
The intelligent internal circuit design allows air to be
dispelled effectively from the external and internal circulation. By activating the priming function the external
water tubes are primed and air is removed from the water
circuit, resulting in an extremely short set-up time. In
addition, the system continuously eliminates air escaping
from the heating process, maximizing the efficiency and
resulting in a more silent pump function.
Unique usability for an effective therapy
Unique usability through the user-friendly and flexible
control unit with touch screen display: The HCU 40 is
operated and controlled by an adjustable control unit.
It can be individually positioned on the HCU 40 or the
mast of any heart-lung machine, no additional remote
control is necessary.
The HCU 40 provides a comprehensive, color touch screen
display with logical, intuitive menus. Function, status,
and system information can be monitored and controlled
simply and conveniently by the touch screen in combination
with a rotary knob. Frequently used temperature settings
can be saved to be immediately accessed at the beginning
of surgery via hotkeys – a special feature to save time.
The use of an isolating transformer for all electrical components, precision sensors and a complete redundant safety system, helps promote both patient safety and operating reliability.
Effective emptying of external devices
The HCU 40 allows effective emptying of all connected
heat exchangers and water supply tubing, by suctioning
the water back into the unit. As a result, frequent filling
of the tank is not necessary and water spillage is virtually
eliminated promoting patient safety.
The design of the HCU 40 prevents airborne transmission
of potentially existing bacteria from the water system into
the operating field. Heater-cooler unit HCU 40 has only one
water tank, which operates at approximately 1–3 °C water
temperature, reducing the potential for bacterial growth
and aerosol formation. But the most important feature is
the separation of the system’s sealed tank from the inner
compartment where the fan is contained. The air flow from
or to the fans do not pass over the area with the water tank.
Therefore the air flow cannot carry aerosols from the water
tank into the operating field.
The system contains no stirring devices in the tank, which
could generate air bubbles during operation. Test results
from an independent institute provide evidence that
HCU 40 does not emit any germs to the sterile OR field
in any operation mode of the device – independent of
the orientation (air outflow direction) of the un
New disinfection procedures fulfilling latest hygienic requirements
Maquet has introduced new disinfections procedures for
its HCU 40. These new protocols include a routine disinfection as well as a highly effective disinfection – also
effective against atypical mycobacteria in the water
system. Naturally, an effective hygienic monitoring process
in the HCU 40 production ensures 100 % microbiological
control of every produced unit before leaving the factory.
Additionally, prior to customer handover, each HCU 40 is
disinfected by Maquet authorized service engineers per
the validated disinfection procedure.it.
HCU 40 Benefits at a glance
• Independent temperature control
of the patient and cardioplegia via
separated water circuits
• Up to three external heat exchangers
can be used simultaneously
• Fast and accurate temperature
adjustment made possible by the split
tank and automatically controlled
mixing valve
• Reduced patient cooling times due
to the exceptional cooling capacity of
the effective ice-building system
• Silent operation – most surgeries
can be performed without a running
compressor
• Minimized patient rewarming time due
to the outstanding heating capacity
and intelligent electronic management
• Gradient mode for physiologically
optimized heating and cooling
• Precise and independent flow control
of the water circuits allow the option
of locating the unit outside the OR
• Simplified operation thanks to the
user-friendly, flexible control unit with
touch screen display
• Extremely short setup time required
due to fast priming and automatic
de-airing
• Convenient and effective emptying
of external devices after surgery
• Polished stainless steel cabinet –
easy to clean and damage resistant
• Easy to maneuver using smooth
running castor wheels with foot-lever
operated brakes
• Proven patient safety and operating
reliability ensured by the sophisticated
electrical safety concept
• Safe design prevents an airborne
transmission of any microorganisms
from the system water into the
operating field
• Optimized disinfection procedures,
including a protocol for highly effective
disinfection and biofilm reduction –
also effective against atypical
mycobacteria in the water system for
hygienic safety
EN