# K171969: Web II Memory Extraction Basket or Memory II Double Lumen Extraction Basket, Memory 5 Fr. Soft Wire Baskets or Memory Helical Stone Extractor, Memory Eight Wire Baskets or Memory Hard Wire Baskets, Fusion Wire Guided Extraction Basket, Non-Lithotripsy Extraction Basket

- Pathway: 510(k) (Traditional)
- Applicant: Wilson-Cook Medical, Inc.
- Decided: Mar 28, 2018 after 271 days
- Product code: LQR (Dislodger, Stone, Biliary)
- Device class: 2
- Regulation: 21 CFR 876.5010
- 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 K851965 (1985). 1 ancestor in all.
5 later devices descend from it; 4 cite it directly.
0 of 7 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K851965: Wilson-Cook Stone Extractor, Wilson-Cook Medical, Inc. (1985) Summary page 4.

## Most influential descendants
- K201509: Disposable Stone Extraction basket (2020), 1 descendant of its own
- K253056: Disposable Stone Extraction Basket (2026), 0 descendants of its own
- K243471: Extraction Basket (2024), 0 descendants of its own
- K230598: Stone Extraction Baskets (2023), 0 descendants of its own
- K182381: Wilson-Cook Mini Basket (2018), 0 descendants of its own

## Indications for use
Endoscopic removal of stones in the biliary system and foreign bodies.

Source page: https://510kreport.com/device/K171969
Methodology: https://510kreport.com/methodology