Gambro AK 96, Operator'S Manual, Page: 163 / 509

General
Note
•
When performing single needle treatment there is always a
certain amount of recirculation.
The AK 96 dialysis machine is equipped with a clamp on the
arterial side in order to minimize recirculation.
To further minimize recirculation the stroke volume should
be maximized. To achieve this the following should be
considered:
- Make sure a correct blood pump rotor is used. There must
be a correct adjustment of the occlusion of the blood pump
segment being used. Check with the authorized technician.
- The volume of the expansion chamber should be as big as
possible.
- The internal diameter of the needle should be as big as
possible.
Comments are available on request, concerning the expected
recirculation of the blood fl ow in the extracorporeal circuit,
contact your local Gambro representative.
Note
Glossary of single needle parameters and key terms
The Arterial phase is when the blood pump is running, the arterial
line clamp is open and the venous line clamp is closed. The arterial
phase can be controlled by pressure settings.
The Venous phase is when the blood pump is not running, the venous
line clamp is open and the arterial line clamp is closed. The venous
phase is controlled by pressure settings.
Cycle , together, an arterial phase and a venous phase are called a cycle.
The Mean blood fl ow rate is the effective blood fl ow rate during the
complete cycle, calculated from the arterial blood fl ow rate.
The Stroke volume is the blood volume that passes through the
dialyzer during a cycle. The lower the stroke volume the greater the
recirculation.
5:2 AK 96 ® Operator's Manual - Single Needle Treatment
HCEN12239 Revision 12.2010
Program version 3.xx