# K123630: Fresenius Liberty Cycler

- Pathway: 510(k) (Traditional)
- Applicant: Fresenius Medical Care North America, Design Cente
- Decided: Sep 9, 2013 after 290 days
- Product code: FKX (System, Peritoneal, Automatic Delivery)
- Device class: 2
- Regulation: 21 CFR 876.5630
- Recalls of this device: 1 (0 Class I)
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 3 generations back to K923065 (1994). 5 ancestors in all.
6 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)
- K043363: Fresenius Liberty Cycler, Fresenius Medical Care North America (2005) Summary page 1.

## Most influential descendants
- K141145: Liberty PDX Cycler (2014), 5 descendants of its own
- 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

## Recalls of this device
- Dec 15, 2015 · Class II · Z-0693-2016: The door latch may not fully close and the door may open unexpectedly. The door may make physical contact with anything near the door of the machine, including the patient. May cause injury, delay in 

## Indications for use
The Fresenius Liberty Cycler is indicated for acute and chronic peritoneal dilysis.

Source page: https://510kreport.com/device/K123630
Methodology: https://510kreport.com/methodology