Model note · Peritoneal Dialysis
Fresenius Liberty Select Cycler
The Liberty Select is a software controlled tabletop cycler for automated peritoneal dialysis at home, in clinics and in hospitals. It pumps dialysate through a single use cassette and tubing set, warms it on an aluminium heater tray, and stores prescriptions and treatment data on a removable IQdrive or, since software 3.0.2, receives prescriptions remotely over an optional cellular modem.
The model
Maker, model and type.
- Maker
- Fresenius Medical Care Renal Therapies Group, LLC
- Model
- Liberty Select Cycler (RTLR180343, RTLR180111)
- Device type
- Peritoneal Dialysis
- Main document
- Open the public document
Key specifications
What the public record says.
| Item | Value | Source |
|---|---|---|
| Inflow rate | 45 to 316 mL/min | Source |
| Outflow rate | 30 mL/min minimum, 286 mL/min maximum | Source |
| Dialysate temperature | 37 degrees C plus or minus 1 degree C | Source |
| Volume accuracy | Fill plus or minus 2%, drain plus or minus 3% | Source |
| Construction | Plastic housing, aluminium heater tray, aluminium cassette housing | Source |
| Accessories | Cassette and tubing Cycler Set, IQdrive USB drive, optional 3G or 4G LTE modem/gateway | Source |
| Software | Version 3.0.2 adds Remote Therapy Programming from a Fresenius server (previously 2.9.2) | Source |
| FDA clearance | K222318, 31 October 2022, product code FKX, 21 CFR 876.5630, predicate K181108 | Source |
Recalls
Known FDA recalls.
- Z-0619-20242023-10-24
Incorrect time stamp on treatment data reports sent to the clinic.
FDA record - Z-0439-20212020-09-12
Software 2.9.0 could misread heater bag volume, raising Supply Bag Line Blocked and leaving fluid unused.
FDA record - Z-2151-20192019-05-29
Additional cassette handling and loading instructions after damaged cassettes leaked into the cycler.
FDA record - Z-1365-20182018-01-24
Patient Line Check software issue in v2.8.7 raising overfill risk.
FDA record - Z-0693-20162015-12-15
Door latch may not fully close and door may open unexpectedly (Liberty cycler 180111).
FDA record - Z-0148-20142013-10-14
Fluid leaking inside the pump compartment (Liberty cycler RTLR180111).
FDA record
Safety
Safety warnings from the record.
- Overfill (increased intraperitoneal volume) can cause serious injury or death and has been the subject of several software recalls. Source
- Dialysate leaks from damaged cassettes can contaminate fluid and lead to peritonitis. Source
- Overfill is also a MAUDE problem code with 1260 reports for this brand. Source
Sources
Where this note comes from.
- FDA 510(k) K222318 summary, Liberty Select Cycler
- openFDA recall search, Fresenius Liberty
- openFDA MAUDE problem counts, brand LIBERTY SELECT CYCLER
Not covered: The Liberty Select user's guide and service documents were not read, so the full alarm list, IQdrive handling and service tests are missing; the two codes come from a recall and a MAUDE narrative. Some older recalls cover the original Liberty cycler (180111), which shares the RTLR180111 number with Liberty Select listings. MAUDE counts are very high and reflect bulk summary reporting, not failure rates. The manufacturerUrl points to the FDA summary because no Fresenius product page was opened.
BMEssentia knowledge drafted from public information, reviewed by Hasan Khaled Ismail on 2026-10-24. Always follow the manufacturer's instructions for use and service manual.
Next