HCEN12745 Revision 10.2016
Program version 2.xx
AK 98 Dialysis Machine - Before you get started A:19
CAUTION!
When moving the dialysis machine, take a firm hold on the transportation handle
and gently move the device over obstacles. Do not move the machine with anything
hanging from the infusion stand or with anything standing at the base plate of the
machine as this may make the dialysis machine unstable.
1.2.8 Safety philosophy
To maintain a safe treatment the AK 98 dialysis machine contains a control system and
a protective system. Controllable treatment parameters (i.e. conductivity, temperature
and ultrafiltration) are supervised by the control system.
The protective system triggers an alarm if a treatment value is outside its alarm limits.
When an alarm is triggered, the protective system takes appropriate measures and
puts the AK 98 dialysis machine into a patient-safe condition, for example by stopping
the blood pump, closing the venous clamp or preventing the dialysis fluid from
reaching the dialyzer.
The functionality of the protective system is checked by the AK 98 dialysis machine
during functional check before each treatment. A fault detection during the
pre-treatment tests will make it impossible to start the treatment.
Ultrafiltration
The ultrafiltration supervision feature uses an independent pair of flow sensors for the
ultrafiltration protective system.
Venous pressure
The protective system checks the venous pressure to prevent patient blood loss.
WARNING!
Under certain circumstances the patient may suffer from blood loss, without the
venous pressure passing any alarm limit. To avoid this, make sure that the blood
circuit and the needle are correctly connected, tight and secure and that the low
alarm limit is set as close as possible to the actual venous pressure.
Blood pump
The protective system checks how long time the blood pump is stopped during a
treatment, to make sure the blood in the dialysis machine blood lines does not
coagulate.
Blood leak detector
The protective system checks that the blood leak detector is able to detect the
presence of blood in the dialysis fluid.
Air detector
Any air that enters the blood lines upstream of the air detector is trapped in the venous
drip chamber. After a certain volume of air has been trapped an alarm is given.
1.3 Intended use
1.3.1 Intended use
The AK 98 dialysis machine is intended for use as a single patient machine to perform
haemodialysis treatments of patients with renal failure or fluid overload upon
prescription by a physician. Patient counselling and teaching of treatment techniques
are directly under the supervision and discretion of the physician. The AK 98 dialysis
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