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10.12-2
10.12.2. Adjustment using syringe and manometer
Adjust the gaps by application of water pressure to blood line set to blood pump by syringe based
on the following procedures.
(1) Required devices
Blood line
Water receiver
Syringe
Manometer
Hexagon wrench (1.5mm)
(2) Turn off power SW of machine.
(3) Set rolling tube of blood line to blood pump.
(4) Prime the tube with water.
(5) After the priming completion, turn rotor of blood pump manually to occlude the tube by one of
3 rollers of the rotor.
Fig. 10.12-2 Adjustment of gaps between housing and rotor rollers of blood pump
(6) Connect syringe
and manometer to inflow end of the tube and open outflow end of it
above water receiver.
(7) Loosen set screw of the roller by hexagon wrench . Turn shaft by screwdriver to repeat
narrowing and widening of gap between the rotor and housing of blood pump. Initially, turn the
shaft to stop water discharge from the outflow end when a water pressure of 0.02Mpa
(kgf/cm
2
) is applied to the tube through the inflow end by operating the syringe.
(8) Tighten the set screw at a moment when the water discharge is started under the pressure
application by turning the shaft slowly.
(9) Repeat the above procedures until all the gaps are adjusted.
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