For semi-quantitative determination of pH, leukocytes, nitrite, protein, glucose, ketone bodies, urobilinogen, bilirubin and blood in urine by reflectance photometry with the Urisys 2400 photometer.
Device Story
Urisys 2400 Urine Test Strips are reagent-impregnated plastic strips used with the Urisys 2400 photometer for automated urinalysis. The system measures reflectance of test pads to determine concentrations of pH, leukocytes, nitrite, protein, glucose, ketones, urobilinogen, bilirubin, and blood. The device also performs intrinsic color compensation by reading a compensation pad to account for urine color and clarity. The system is designed for clinical use; urine samples are dispensed onto the test strip, which is then processed by the photometer. Results are provided to healthcare providers to assist in clinical decision-making regarding patient health status. The device offers improved on-instrument storage (14 days) compared to the predicate.
Clinical Evidence
No clinical data provided; substantial equivalence is based on bench testing and performance characteristics comparing the subject device to the predicate.
Technological Characteristics
Reagent test paper, mesh, and absorbent paper laminated on a plastic strip. Operates via reflectance photometry. Features intrinsic color compensation using a compensation pad. Designed for use with the Urisys 2400 photometer. Storage at 2°C-30°C.
Indications for Use
Indicated for semi-quantitative determination of pH, leukocytes, nitrite, protein, glucose, ketone bodies, urobilinogen, bilirubin, and blood in urine using the Urisys 2400 photometer.
Regulatory Classification
Identification
A urinary glucose (nonquantitative) test system is a device intended to measure glucosuria (glucose in urine). Urinary glucose (nonquantitative) measurements are used in the diagnosis and treatment of carbohydrate metabolism disorders including diabetes mellitus, hypoglycemia, and hyperglycemia.
Predicate Devices
Roche Diagnostics Chemstrip 10 S-UA test strips (K934042)
Submission Summary (Full Text)
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K012397
# SEP 2 6 2001
| 510(k) Summary | |
|----------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Introduction | According to the requirements of 21 CFR 807.92, the following information provides sufficient detail to understand the basis for a determination of substantial equivalence. |
| Submitter name, address, contact | Roche Diagnostics Corporation<br>9115 Hague Road<br>Indianapolis, IN 46250<br>(317) 576 - 3544<br>Contact Person: Kay A. Taylor<br>Date Prepared: July 25, 2001 |
| Device Name | Proprietary name: Urisys 2400 Urine Test Strip<br>Common name: Reagent Strip for Urinalysis<br>Classification name: Urinary glucose, ketones, nitrite, protein, blood, bilirubin, urobilinogen, leukocytes (non-quantitative) and pH Test Systems |
| Device Description | The Urisys 2400 Urine Test Strips are used in conjunction with the Urisys 2400 photometer. The Urisys 2400 photometer is an automated urinalysis system, class I exempt device, regulation number 21CFR 862.2900. The Urisys 2400 photometer determines specific gravity, sample color, and sample clarity and reflectance measurements of test parameters on the Urisys 2400 Urine Test Strips. |
:
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# 510(k) Summary, Continued
| Intended use | For semi-quantitative determination of pH, leukocytes, nitrite, protein, glucose, ketone bodies, urobilinogen, bilirubin and blood in urine by reflectance photometry with the Urisys 2400 photometer. |
|-------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Indications for Use | For semi-quantitative determination of pH, leukocytes, nitrite, protein, glucose, ketone bodies, urobilinogen, bilirubin and blood in urine by reflectance photometry with the Urisys 2400 photometer. |
| Substantial Equivalence | The Urisys 2400 Urine Test Strip is substantially equivalent to other devices legally marketed in the United States. We claim equivalence to the Roche Diagnostics Chemstrip 10 S-UA test strips (K934042). Both products are designed to provide semi-quantitative urinalysis results using chemistry reagent strips that include pH, leukocytes, nitrite, protein, glucose, ketone, urobilinogen, bilirubin and blood reagent pad areas. |
Substantial equivalence similarities
The following table compares the Urisys 2400 Urine Test Strip with the predicate device.
| Feature | Urisys 2400 Urine Test<br>Strip | Chemstrip 10 S-UA |
|-----------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Intended Use | For semi-quantitative<br>determination of pH,<br>leukocytes, nitrite, protein,<br>glucose, ketone bodies,<br>urobilinogen, bilirubin and<br>blood in urine by<br>reflectance photometry<br>with the Urisys 2400<br>photometer. | For the semi-quantitative<br>determination of Specific<br>Gravity, pH, Leukocytes,<br>Nitrite, Protein, Glucose,<br>Ketones, Urobilinogen,<br>Bilirubin and Blood in urine.<br>Intended for use visually or on<br>the Chemstrip Super UA<br>Automated Urine Analyzer. |
| Architecture | Reagent test paper, mesh<br>and absorbent paper<br>laminated on plastic strip. | Reagent test paper, mesh and<br>absorbent paper laminated on<br>plastic strip. |
| Calibration<br>method | Same | Calibration strips with specific<br>reflectance values for<br>calibration. |
| Storage | Store at 2°C-30°C. | At temperatures below 30°C,<br>do not freeze. |
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### 510(k) Summary, Continued
#### Substantial equivalence similarities, continued
| Feature | Urisys 2400 Urine Test<br>Strip | Chemstrip 10 S-UA |
|---------------------------------|--------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------|
| Intrinsic color<br>compensation | Same | blank compensation pad<br>correction |
| Measurement<br>mode | Same, as well as urine<br>color through reflectance<br>readings of the<br>compensation pad | photometric reflectance for pH,<br>leukocytes, nitrite, protein.<br>glucose, ketones, urobilinogen,<br>bilirubin, erythrocytes |
#### Substantial equivalence differences
The following table compares the Urisys 2400 Urine Test Strips with the predicate device.
| Feature | Urisys 2400 Urine<br>Test Strips | Chemstrip 10 S-UA |
|-----------------------|-------------------------------------|----------------------------------|
| On-instrument storage | 14 days | up to 10 hours |
| Urine application | Sample dispensed onto<br>test strip | Test strip dipped into<br>sample |
Substantial equivalence performance characteristics The performance characteristics of the Urisys 2400 Urine Test Strips and the predicate device are provided in section IV.
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Image /page/3/Picture/0 description: The image shows the text "DEPARTMENT OF HEALTH & HUMAN SERVICES". The text is in all caps and is in a bold, sans-serif font. The text is centered horizontally and vertically in the image. The background is white.
Image /page/3/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a stylized eagle with three stripes representing the agency's mission. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged in a circular fashion around the eagle. The logo is black and white.
Food and Drug Administration 2098 Gaither Road Rockville MD 20850
SEP 2 6 2001
Ms. Kay A. Taylor Regulatory Affairs, Laboratory Systems Roche Diagnostics Corporation 9115 Hague Road P.O. Box 50457 Indianapolis, IN 46250-0457
Re: k012397
> Trade/Device Name: Urisys 2400 Urinalysis Test System Regulation Number: 21 CFR 862.1340 Regulation Name: Urinary glucose (non-quantitative) test system Regulatory Class: Class II Product Code: JIL Regulation Number: 21 CFR 864.6550 Regulation Name: Occult blood test Regulatory Class: Class II Product Code: ЛО Dated: July 25, 2001 Received: July 27, 2001
Dear Ms. Taylor:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to such additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
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Page 2 -
This letter will allow you to begin marketing your device as described in your 510(k) premarket I his letter will anow you to begin marketing your device of your device to a legally marketed nouncedion. The PDA imania of successification for your device and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801 and 1 If you desire specific advice for your do the can and one of the Office of Compliance at additionally 607.10 for in This diaglestions on the promotion and advertising of your device, (201) 594-4568. Additional J. For quice at (301) 594-4639. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small information on your responsionals. and Consumer Assistance at its toll-free number (800) 638-2041 or Manufacturers International and Sollass "http://www.fda.gov/cdrh/dsma/dsmamain.html".
Sincerely yours,
Steven Butman
Steven I. Gutman, M.D., M.B.A. Director Division of Clinical Laboratory-Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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## Indications for Use Statement
510(k) Number (if known): NAA KO/2397
Device Name: Urisys 2400 Urinalysis Test System
Indications For Use:
For semi-quantitative determination of pH, leukocytes, nitrite, protein, glucose, ketone bodies, urobilinogen, bilirubin and blood in urine by reflectance photometry with the Urisys 2400 photometer.
Prescription Use (Per 21 CFR 801.109) OR
Over-The-Counter Use _
(Optional Format 1-2-96)
Kesia Alexander Jordan Cooper
Division Sign Off
(Division Sign-Off)
Division of Clinical Laboratory Devices
510(k) Number K012397
22
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.