# K190903: Lawson Retrograde Nephrostomy Wire Puncture Set

- Pathway: 510(k) (Traditional)
- Applicant: Cook Incorporated
- Decided: Dec 16, 2019 after 252 days
- Product code: LJE (Catheter, Nephrostomy)
- Device class: U
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 1 generation back to K833762 (1984). 1 ancestor in all.
No later device cites it as a predicate yet.
0 of 2 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K833762: Percutaneous Retrograde Nephrostomy, Vpi (1984) Summary page 4.

## Indications for use
Used to gain precise percutaneous access to the kidney by means of controlled fine wire puncture from within the collecting system for patients aged 12 years and older.

Source page: https://510kreport.com/device/K190903
Methodology: https://510kreport.com/methodology