
19. Technical Data
19-10 HomeChoice APD Systems Patient At-Home Guide October 2, 2009 07-19-61-244
19.11 Protective System Preventing Air Infusion
The HomeChoice/HomeChoice PRO APD System is capable of detecting air in the
vertically oriented pumping chambers. If air volumes exceeding 3 cc are detected,
the air is pumped out of the top of the chamber to the drain line. Air volumes that
are smaller than this are physically unable to exit the bottom of the chamber to the
Fill line. This method is effective in preventing air from being pumped into the
patient, as long as the cassette is undamaged and the patient line is primed with
fluid at the beginning of the therapy. Refer to 11.5, Load the Disposable Set, on
page 11-10 for information on inspecting the cassette for damage.
The disposable set patient line is primed manually using the weight of the fluid in
the heater bag. The patient line is correctly primed when the fluid level is at or
near the connector at the end of the patient line. The system can not detect
whether the patient line is correctly primed. Refer to 11.8.1, Reprime the Patient
Line, on page 11-23 for information on verifying proper priming.
19.12 Protective System Preventing IIPV
The HomeChoice/HomeChoice PRO APD System uses two independent fluid
measurement systems to monitor Fill and Drain volumes. These two systems must
agree within 0.1% or a system error will result. In case of a power failure or when
the system is off, the occluder prevents any solution from being delivered to the
patient. The volume measuring system is accurate to the greater of ±2% or
±10 mL.
If any patient, or patient caregiver, suspects the patient has an increased
intraperitoneal volume (IIPV) situation during a therapy, press
STOP
immediately, then press
V and initiate a Manual Drain. The Manual Drain
procedure is located in 18.5, Manual Drain Procedure, on page 18-53.
See 18.8, Increased Intraperitoneal Volume (IIPV), on page 18-58 for more
information.
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