Description
of the device
2.2
Technical description
The Barkey plasmatherm is configured as an electronically regulated dry heating device
with an enclosed heating chamber. Bags of fresh frozen plasma (FFP), blood and erythro-
cyte concentrates (EC), cryoconserved preparations, cryoconserved stem cells (HPC =
haematopoietic progenitor cells) or infusion solutions are placed between soft heating
cushions made from a flexible synthetic material. A heat transfer fluid (distilled or de-
mineralised water) flows through the heating cushions which heat up the materials placed
in the device and keep them warm.
All heating is controlled by heating programs. To heat a particular preparation, the user
selects the appropriate program on the operating panel using the display and buttons. Dif-
ferent functions of the device act on the preparation depending on the program selected.
A number of preferences can also be set. The following table provides an overview of
these:
Program name
User preselectable
Acting special func-
tions
Undulation**
BLOOD
Heating time
no
PLASMA
*
Heating time
yes
HPC***
Heating time
yes
USER
various
parameters can be
set as required
adjustable or select-
able
CONTINUOUS
OPERATION
no
no
*
The setpoint temperature can be increased to +45°C to accelerate the thawing of fro-
zen plasma conserves. The process now operates at a temperature of +45°C and is
monitored and timed by the program.
** An undulation function which agitates the heated materials is provided for mixing
certain materials such as plasma (FFP,
f
resh
f
rozen
p
lasma).
*** HPC
Haematopoietic progenitor cells (stem cells)
CAUTION
With plasma, thorough mixing of the bag's contents is essential as all protein pre-
cipitates (cryoproteins) must be dissolved before the plasma can be used.
Summary of Contents for plasmatherm
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