510(k) · Cleared
ClearedDUS R-50S (Urine Chemistry system)
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
DFI Co., Ltd. · JIL Method, Enzymatic, Glucose (Urinary, Non-Quantitative)
Cleared on Feb 16, 2018 as substantially equivalent to K091216 (Siemens Healthcare Diagnostics, 2009) after a 268-day review. Its family tree reaches back 3 generations to 1991.
- Decided
- Feb 16, 2018
- Review
- 268 days
- Class
- Class II
- Product code
- JIL
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 3 generations to K905396 (1991). 9 ancestors in all. No later device cites it as a predicate yet.
- Root · 3 generations backK905396 Hemastix Reagent StripsHeraeus Kulzer, Inc. · 1991
- 2 generations backK031947 Bayer Clinitek Status AnalyzerBayer Healthcare, LLC · 2003
- 1 generation backK091216 Clinitek Status+Analyzer and Clinitek Status Connect System, Models…Siemens Healthcare Diagnostics · 2009 · Recalled
- This deviceK171521 DUS R-50S (Urine Chemistry system)DFI Co., Ltd. · 2018
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −3 | K905396 | Hemastix Reagent Strips | Heraeus Kulzer, Inc. | 1991 | — |
| −2 | K031947 | Bayer Clinitek Status Analyzer | Bayer Healthcare, LLC | 2003 | — |
| −1 | K091216 | Clinitek Status+Analyzer and Clinitek Status Connect System, Models 1780, 1797 | Siemens Healthcare Diagnostics | 2009 | 4 |
| 0 (this device) | K171521 | DUS R-50S (Urine Chemistry system) | DFI Co., Ltd. | 2018 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1999 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 2 | 0 |
Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in JIL? 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 JIL device
- #1 K193514 AUTION MAX AX-4060 Urinalysis Systemscore 6.1 · 4 generations · no Class I recall
What was it cleared against? (1)
Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K091216 | Clinitek Status+Analyzer and Clinitek Status Connect System, Models 1780, 1797Summary page 5…862.1115 JJB I (nonquantitative) test system Automated Urinalysis System 21 CFR 862.2900 KQO I Predicate Device Information: K091216 / Clinitek Status+ Device Description: The DUS R-50S (Urine Chemistry system) is a portable analyzer. It is designed to read on… | 2009 |
What descends from it?
No later submission names this one as a predicate yet.
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?
- The line of descent spans 27 years and passes through 4 companies; a new generation was cleared every 8.4 years on median.
- 3 of the 9 ancestors have a recall of any class.
- 3 other devices also cite its predicate K091216.
How does its category compare?
All JIL devicesJIL Method, Enzymatic, Glucose (Urinary, Non-Quantitative): FDA decisions, review times, recalls and adverse event reports over 20 years. 2018, this device’s year, is highlighted.
FDA decisions per year · JIL
1in 2023
2026 to Oct 25, outlined.
Median 510(k) review, days · JIL
187in 2018
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · JIL
1in 2025
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · JIL
15in 2025
MAUDE reports naming product code JIL, 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 | 3 | 284 | 0 | 20 |
| 2008 | 0 | — | 0 | 20 |
| 2009 | 1 | — | 0 | 16 |
| 2010 | 0 | — | 0 | 11 |
| 2011 | 1 | — | 0 | 14 |
| 2012 | 1 | — | 0 | 5 |
| 2013 | 0 | — | 0 | 32 |
| 2014 | 1 | — | 4 | 47 |
| 2015 | 1 | — | 0 | 45 |
| 2016 | 2 | — | 1 | 40 |
| 2017 | 1 | — | 0 | 33 |
| 2018 | 4 | 187 | 0 | 68 |
| 2019 | 1 | — | 0 | 67 |
| 2020 | 0 | — | 0 | 23 |
| 2021 | 0 | — | 0 | 12 |
| 2022 | 0 | — | 0 | 14 |
| 2023 | 1 | — | 0 | 15 |
| 2024 | 0 | — | 0 | 21 |
| 2025 | 0 | — | 1 | 15 |
| 2026 | 0 | — | 0 | — |
What is it indicated for?
The DUS R-50S System provides a qualitative and semi-quantitative measurements for specific gravity, pH, leukocytes, nitrite, protein, glucose, ketone, urobilinogen, bilirubin, blood, microalbumin and creatinine in urine specimens. These measurements are used to aid in the diagnosis of metabolic disorders, kidney function anomalies, urinary tract infections and liver function. The system is intended for prescription, in vitro diagnostic use only. The DUS…
Read the full statement (107 words)
The DUS R-50S System provides a qualitative and semi-quantitative measurements for specific gravity, pH, leukocytes, nitrite, protein, glucose, ketone, urobilinogen, bilirubin, blood, microalbumin and creatinine in urine specimens. These measurements are used to aid in the diagnosis of metabolic disorders, kidney function anomalies, urinary tract infections and liver function. The system is intended for prescription, in vitro diagnostic use only.
The DUS R-50S System consists of the following:
DUS R-50S Analyzer
DUS 10 Reagent Strips for urinalysis include test pads for leukocytes, nitrite, urobilinogen, protein, pH, blood, specific gravity, ketone(acetoacetic acid), bilirubin and glucose.
DUS 2AC Reagent Strips for urinalysis include test pads for microalbumin and creatinine.
Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.
https://510kreport.com/device/K171521 · printed Nov 6, 2026
Cite this page
510(k) Report. “K171521: DUS R-50S (Urine Chemistry system).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K171521
Report an extraction error
Are you the manufacturer?
Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026