510(k) · Cleared
ClearedWilson-Cook Stone Extractor
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Wilson-Cook Medical, Inc. · FFL Dislodger, Stone, Basket, Ureteral, Metal
Cleared on Jul 29, 1985 after an 87-day review. FDA has not posted a summary or statement for it, so its predicates are not known. 7 later devices descend from it.
- Decided
- Jul 29, 1985
- Review
- 87 days
- Class
- Class II
- Product code
- FFL
- Recalls
- None
- Predicates
- 0
7 later devices descend from it, 2 citing it directly.
- This deviceK851965 Wilson-Cook Stone ExtractorWilson-Cook Medical, Inc. · 1985
- Descendant · cites it directly · 5 of its ownK171969 Web II Memory Extraction Basket or Memory II Double Lumen Extraction…Wilson-Cook Medical, Inc. · 2018
- Descendant · 2 generations on · 1 of its ownK201509 Disposable Stone Extraction basketHangzhou AGS MedTech Co., Ltd. · 2020
- Descendant · 3 generations on · 0 of its ownK253056 Disposable Stone Extraction BasketZhejiang Soudon Medical Technology Co., Ltd. · 2026
- Descendant · 2 generations on · 0 of its ownK243471 Extraction BasketMicro-Tech (Nanjing) Co., Ltd. · 2024
- Descendant · 2 generations on · 0 of its ownK230598 Stone Extraction BasketsJiangsu Vedkang Medical Science and Technology Co., Ltd. · 2023
Showing 5 of 7 descendants. See all descendants
Descendants cleared per year
Most influential descendants
Showing 5 of 7 · See all- K171969Web II Memory Extraction Basket or Memory II Double Lumen Extraction Basket, Memory 5…Wilson-Cook Medical, Inc. · 2018 · cites it directly5descendants
- K201509Disposable Stone Extraction basketHangzhou AGS MedTech Co., Ltd. · 2020 · 2 generations on1descendant
- K253056Disposable Stone Extraction BasketZhejiang Soudon Medical Technology Co., Ltd. · 2026 · 3 generations on0descendants
- K243471Extraction BasketMicro-Tech (Nanjing) Co., Ltd. · 2024 · 2 generations on0descendants
- K230598Stone Extraction BasketsJiangsu Vedkang Medical Science and Technology Co., Ltd. · 2023 · 2 generations on0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| 0 (this device) | K851965 | Wilson-Cook Stone Extractor | Wilson-Cook Medical, Inc. | 1985 | — |
| +1 | K171969 | Web II Memory Extraction Basket or Memory II Double Lumen Extraction Basket… | Wilson-Cook Medical, Inc. | 2018 | — |
| +2 | K201509 | Disposable Stone Extraction basket | Hangzhou AGS MedTech Co., Ltd. | 2020 | — |
| +3 | K253056 | Disposable Stone Extraction Basket | Zhejiang Soudon Medical Technology Co., Ltd. | 2026 | — |
| +2 | K243471 | Extraction Basket | Micro-Tech (Nanjing) Co., Ltd. | 2024 | — |
| +2 | K230598 | Stone Extraction Baskets | Jiangsu Vedkang Medical Science and Technology Co., Ltd. | 2023 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2002 | 1 | 0 |
| 2018 | 2 | 0 |
| 2020 | 1 | 0 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
| 2026 | 1 | 0 |
Sources: FDA 510(k) database (decision fields), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in FFL? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
- Candidate predicates for a device like this, rankedin the report
- Recall history across each candidate’s familyin the report
What was it cleared against?
FDA has not posted a summary or statement for it, so its predicates are not known.
What descends from it? (7)
2 later devices cite it directly; ranked here by how many devices descend from each in turn.
Has anything in its family been recalled? (0 Class I)
No FDA recall names this device.
No ancestor or descendant has a Class I recall.
What does this lineage say?
- Of its descendants, K171969 (Wilson-Cook Medical, Inc., 2018) has gone furthest, with 5 descendants of its own.
How does its category compare?
All FFL devicesFFL Dislodger, Stone, Basket, Ureteral, Metal: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · FFL
1in 2019
2026 to Oct 25, outlined.
Median 510(k) review, days · FFL
Too few FFL 510(k)s in any year since 2007 to give a median.
Recalls per year · FFL
1in 2022
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · FFL
496in 2025
MAUDE reports naming product code FFL, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 0 | — | 0 | 68 |
| 2008 | 1 | — | 1 | 152 |
| 2009 | 0 | — | 0 | 194 |
| 2010 | 0 | — | 0 | 192 |
| 2011 | 1 | — | 0 | 129 |
| 2012 | 0 | — | 0 | 95 |
| 2013 | 0 | — | 0 | 98 |
| 2014 | 0 | — | 1 | 71 |
| 2015 | 0 | — | 0 | 79 |
| 2016 | 0 | — | 0 | 88 |
| 2017 | 1 | — | 0 | 517 |
| 2018 | 0 | — | 0 | 428 |
| 2019 | 1 | — | 0 | 351 |
| 2020 | 0 | — | 0 | 375 |
| 2021 | 0 | — | 0 | 358 |
| 2022 | 0 | — | 1 | 426 |
| 2023 | 0 | — | 0 | 593 |
| 2024 | 0 | — | 0 | 606 |
| 2025 | 0 | — | 0 | 496 |
| 2026 | 0 | — | 0 | — |
https://510kreport.com/device/K851965 · printed Nov 5, 2026
Cite this page
510(k) Report. “K851965: Wilson-Cook Stone Extractor.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K851965
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Record history
- FDA decision record loaded May 2, 2026
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026