510(k) · Cleared
ClearedHydra Vision Urological X-Ray System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Mallinckrodt Group, Inc. · KPR System, X-Ray, Stationary
Cleared on Dec 13, 1990 after a 97-day review. FDA has not posted a summary or statement for it, so its predicates are not known. 1 later device descends from it.
- Decided
- Dec 13, 1990
- Review
- 97 days
- Class
- Class II
- Product code
- KPR
- Recalls
- None
- Predicates
- 0
1 later device descends from it, 1 citing it directly.
- This deviceK904145 Hydra Vision Urological X-Ray SystemMallinckrodt Group, Inc. · 1990
- Descendant · cites it directly · 0 of its ownK993687 Uroview 2800Ge Dec Medical Systems · 1999 · Recalled
Most influential descendants
Showing 1 of 1 · See all- K993687Uroview 2800Ge Dec Medical Systems · 1999 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| 0 (this device) | K904145 | Hydra Vision Urological X-Ray System | Mallinckrodt Group, Inc. | 1990 | — |
| +1 | K993687 | Uroview 2800 | Ge Dec Medical Systems | 1999 | 13 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1999 | 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 KPR? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
Top candidate predicates for a new KPR device
- #1 K242119 Innovision-Exiiscore 17.0 · 9 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin 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? (1)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K993687 | Uroview 2800 | 1999 | 0 |
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, K993687 (Ge Dec Medical Systems, 1999) has gone furthest, with 0 descendants of its own.
How does its category compare?
All KPR devicesKPR System, X-Ray, Stationary: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · KPR
8in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · KPR
155in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · KPR
7in 2025
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · KPR
39in 2025
MAUDE reports naming product code KPR, 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 | 12 | 31 | 10 | 120 |
| 2008 | 15 | 48 | 10 | 95 |
| 2009 | 9 | 35 | 5 | 61 |
| 2010 | 9 | 126 | 3 | 82 |
| 2011 | 9 | 152 | 5 | 103 |
| 2012 | 11 | 58 | 1 | 74 |
| 2013 | 5 | 163 | 5 | 24 |
| 2014 | 10 | 108 | 8 | 34 |
| 2015 | 18 | 81 | 1 | 59 |
| 2016 | 11 | 84 | 4 | 18 |
| 2017 | 6 | 75 | 3 | 31 |
| 2018 | 15 | 30 | 4 | 36 |
| 2019 | 12 | 33 | 1 | 77 |
| 2020 | 16 | 39 | 1 | 41 |
| 2021 | 6 | 55 | 0 | 37 |
| 2022 | 8 | 43 | 2 | 27 |
| 2023 | 9 | 76 | 4 | 39 |
| 2024 | 11 | 162 | 1 | 34 |
| 2025 | 8 | 155 | 7 | 39 |
| 2026 | 6 | 197 | 0 | — |
https://510kreport.com/device/K904145 · printed Nov 5, 2026
Cite this page
510(k) Report. “K904145: Hydra Vision Urological X-Ray System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K904145
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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