# K141145: Liberty PDX Cycler

- Pathway: 510(k) (Traditional)
- Applicant: Fresenius Medical Care Renal Therapies Group, LLC
- Decided: Jul 30, 2014 after 89 days
- Product code: FKX (System, Peritoneal, Automatic Delivery)
- Device class: 2
- Regulation: 21 CFR 876.5630
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 4 generations back to K923065 (1994). 6 ancestors in all.
5 later devices descend from it; 2 cite it directly.
0 of 12 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K123630: Fresenius Liberty Cycler, Fresenius Medical Care North America, Design Cente (2013) Summary page 1.

## Most influential descendants
- K171652: Fresenius Liberty Select Cycler (2017), 4 descendants of its own
- K181108: Fresenius Liberty Select Cycler (2018), 3 descendants of its own
- K243371: Byonyks X-1 APD Cycler; Byonyks Automated PD Set DS-1 (2025), 0 descendants of its own
- K222318: Fresenius Liberty Select Cycler (2022), 0 descendants of its own
- K212522: Lilliput APD System (2022), 0 descendants of its own

## Indications for use
The Liberty PDx Cycler is indicated for acute and chronic peritoneal dialysis.

Source page: https://510kreport.com/device/K141145
Methodology: https://510kreport.com/methodology