VITROS Chemistry Products Calibrator Kit 28: For in vitro diagnostic use only. VITROS Chemistry Products Calibrator Kit 28 is used in conjunction with VITROS Chemistry Products FS Calibrator 1 to calibrate VITROS 5,1 FS Chemistry Systems for the quantitative measurement of antistreptolysin O (ASO). VITROS Chemistry Products FS Calibrator 1: For in vitro diagnostic use only. VITROS Chemistry Products FS Calibrator 1 is used in conjunction with VITROS Chemistry Products Calibrator Kits 16, 17, 18, 19, and 28 to calibrate VITROS 5,1 FS Chemistry Systems. VITROS Chemistry Products ASO/RF Performance Verifier I and II: For in vitro diagnostic use only. VITROS Chemistry Products ASO/RF Performance Verifiers are assayed quality controls used to monitor the performance of VITROS ASO and RF Reagent on VITROS 5,1 FS Chemistry Systems.
Device Story
System comprises calibrators and assayed controls for VITROS 5,1 FS Chemistry Systems; used by laboratory professionals to ensure accurate quantitative measurement of antistreptolysin O (ASO) and Rheumatoid Factor (RF). Calibrator Kit 28 (aqueous solution with human serum, protein, salt) and FS Calibrator 1 (saline/water) calibrate system response. ASO/RF Performance Verifiers (lyophilized human serum-based controls) monitor reagent performance. Output used by clinicians to assess patient streptococcal infection status or rheumatoid conditions. Benefits include standardized, reliable diagnostic testing within clinical laboratory workflows.
Indicated for in vitro diagnostic use to calibrate VITROS 5,1 FS Chemistry Systems for quantitative measurement of antistreptolysin O (ASO) and to monitor performance of ASO and Rheumatoid Factor (RF) reagents. Intended for professional clinical laboratory use.
Regulatory Classification
Identification
Streptococcus spp. exoenzyme reagents are devices used to identify antibodies to Streptococcus spp. exoenzyme in serum. The identification aids in the diagnosis of disease caused by bacteria belonging to the genus Streptococcus and provides epidemiological information on these diseases. Pathogenic streptococci are associated with infections, such as sore throat, impetigo (an infection characterized by small pustules on the skin), urinary tract infections, rheumatic fever, and kidney disease.
VITROS Chemistry Products RF Performance Verifiers I and II (K041863)
Submission Summary (Full Text)
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DEC 1 4 2005
## 5.0 510(k) Summary
This summary of 510(k) safety and effectiveness information is being submitted in accordance with the requirements of SMDA 1990 and 21 CFR 807.92. The assigned 510(k) number is: 1052045
### 5.1 Submitter name, address, contact
Ortho-Clinical Diagnostics, Inc. 100 Indigo Creek Drive Rochester, New York 14626-5101 Phone: (585) 453-3143 Fax: (585) 453-3368 Contact Person: Michael M. Byrne
#### 5.2 Date of Preparation:
9/23/05
### Device Proprietary Names: 5.3
| Trade Names | VITROS Chemistry Products Calibrator Kit 28 |
|-------------|----------------------------------------------------------------|
| | VITROS Chemistry Products FS Calibrator 1 |
| | VITROS Chemistry Products ASO/RF Performance Verifier I and II |
| Common Name | Antistreptolysin O calibrators and controls |
#### 5.4 Classification Names
Classification Name: Calibrator (21 CFR 862.1150): Class II
Classification Name: Quality Control material (assayed and unassayed) (21 CFR 862.1660): Class I: Reserved
#### ર્સ્ડ Predicate devices
The VITROS Chemistry Products Calibrator Kit 28, VITROS Chemistry Products FS Calibrator 1 and VITROS Chemistry Products ASO/RF Performance Verifiers I and II are substantially equivalent to the VITROS Chemistry Products Calibrator Kit 16, VITROS Chemistry Products FS Calibrator 1 and VITROS Chemistry Products RF Performance Verifiers I and II, respectively. The predicate devices were cleared by the FDA (K041863) for IVD use.
Ortho-Clinical Diagnostics, Inc. VITROS Calibrator Kit 28, VITROS FS Calibrator 1, and VITROS ASORF Performance Verificas Page 6 of 32
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#### 5.6 Device description
The quantitative measurement of antistreptolysin O is performed using the VITROS Chemistry Products ASO Reagent in conjunction with the VITROS Chemistry Products Calibrator Kit 28 and VITROS Chemistry Products FS Calibrator 1 on VITROS 5,1 FS Chemistry Systems. The FDA has classified Streptococcus spp. exoenzyme reagents (Sec. 866.3720) in Class I (general controls), therefore, the VITROS Chemistry Products ASO Reagent is exempt from premarket notification procedures in 21 CFR Part 807 Subpart E.
### VITROS Chemistry Products Calibrator Kit 28
VITROS Chemistry Products Calibrator Kit 28 is an aqueous solution containing processed human serum, protein, inorganic salt, and preservative.
### VITROS Chemistry Products FS Calibrator 1
VITROS Chemistry Products FS Calibrator 1 is composed of processed water and 0.9% w/v sodium chloride (Saline).
### VITROS Chemistry Products ASO/RF Performance Verifier I and II
VITROS Chemistry Products ASO/RF Performance Verifiers contain two levels of lyophilized assayed controls for use in monitoring performance of VITROS ASO and RF Reagents on VITROS 5,1 FS Chemistry Systems.
These controls are prepared from processed human serum to which purified human proteins, bovine serum albumin and preservative have been added. These controls are reconstituted with VITROS Chemistry Products FS Reconstitution Diluent that contains processed water.
#### 5.7 Device intended use
### VITROS Chemistry Products Calibrator Kit 28
For in vitro diagnostic use only.
VITROS Chemistry Products Calibrator Kit 28 is used in conjunction with VITROS Chemistry Products FS Calibrator 1 to calibrate VITROS 5,1 FS Chemistry Systems for the quantitative measurement of antistreptolysin O (ASO).
### VITROS Chemistry Products FS Calibrator 1
For in vitro diagnostic use only.
VITROS Chemistry Products FS Calibrator 1 is used in conjunction with VITROS Chemistry Products Calibrator Kits 16, 17, 18, 19, and 28 to calibrate VITROS 5,1 FS Chemistry Systems. continued on next page
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### VITROS Chemistry Products ASO/RF Performance Verifier I and II
For in vitro diagnostic use only
VITROS Chemistry Products ASO/RF Performance Verifiers are assayed quality controls used to monitor the performance of VITROS ASO and RF Reagent on VITROS 5,1 FS Chemistry Systems.
#### 5.8 Comparison to predicate device
The VITROS Chemistry Products Calibrator Kit 28, VITROS Chemistry Products FS Calibrator 1, and VITROS Chemistry Products ASO/RF Performance Verifiers I and II are substantially equivalent to the VITROS Chemistry Products Calibrator Kit 16, VITROS Chemistry Products FS Calibrator 1, and VITROS Chemistry Products RF Performance Verifiers I and II, respectively. These predicate devices were cleared by the FDA (K041863) for IVD use.
Tables 1, 2, and 3 provide similarities and differences between the new devices and predicate devices.
- Table 1 Table 1 lists the similarities and differences of the device characteristics between new device, VITROS Chemistry Products Calibrator Kit 28 and predicate device, VITROS Chemistry Products Calibrator Kit 16.
| Device<br>Characteristic | VITROS Calibrator Kit 28<br>New device #1 | VITROS Calibrator Kit 16<br>Predicate device #1 |
|--------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Intended Use | For in vitro diagnostic use only.<br>VITROS Chemistry Products<br>Calibrator Kit 28 is used in<br>conjunction with VITROS Chemistry<br>Products FS Calibrator 1 to calibrate<br>VITROS 5,1 FS Chemistry Systems<br>for the quantitative measurement of<br>antistreptolysin O (ASO). | For in vitro diagnostic use only.<br>VITROS Chemistry Products Calibrator<br>Kit 16 is used in conjunction with<br>VITROS Chemistry Products FS<br>Calibrator 1 to calibrate VITROS 5,1 FS<br>Chemistry Systems for the quantitative<br>measurement of rheumatoid factor (RF). |
| Fluid Matrix | Same | An aqueous solution |
| Analyte Levels | One level | Five levels |
| Analyte | Antistreptolysin O (ASO) | Rheumatoid factor (RF) |
| Traceability | NIBSC 97/6621 | NIBSC 64/22 |
| Format | Same | Liquid ready to use |
Continued on next page
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- Table 2 Table 2 lists the similarities and differences of the device characteristics between new device, VITROS Chemistry Products FS Calibrator Kit 1 and predicate device, VITROS Chemistry Products FS Calibrator Kit 1.
| Device<br>Characteristic | VITROS FS Calibrator Kit 1<br>New device #2 | VITROS FS Calibrator Kit 1<br>Predicate device #2 |
|--------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Intended Use | For <i>in vitro</i> diagnostic use only<br>VITROS Chemistry Products FS<br>Calibrator 1 is used in conjunction<br>with VITROS Calibrator Kits 16, 17,<br>18, 19 and 28 to calibrate VITROS<br>5,1 FS Chemistry Systems. | For <i>in vitro</i> diagnostic use only<br>VITROS Chemistry Products FS<br>Calibrator 1 is used in conjunction with<br>VITROS Calibrator Kits 16, 17, 18 and<br>19 to calibrate VITROS 5,1 FS<br>Chemistry Systems. |
| Fluid Matrix | Same | Saline and processed water |
| Analyte Levels | Same | One level |
| Analyte | Antistreptolysin O (ASO) | Rheumatoid factor (RF) |
| Traceability | NIBSC 97/6621 | NIBSC 64/22 |
| Format | Same | Liquid ready to use |
- Table 3 Table 3 lists the similarities and differences of the device characteristics between new device, VITROS ASO/RF Performance Verifiers and predicate device, VITROS RF Performance Verifiers.
| Device<br>Characteristic | VITROS ASO/RF Performance<br>Verifiers I and II<br>New device #3 | VITROS RF Performance Verifiers I<br>and II<br>Predicate device #3 |
|--------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Intended Use | For in vitro diagnostic use only. VITROS<br>Chemistry Products ASO/RF Performance<br>Verifiers are assayed controls used to<br>monitor the performance of VITROS ASO<br>and RF Reagents on VITROS 5,1 FS<br>Chemistry Systems. | For in vitro diagnostic use only. VITROS<br>Chemistry Products RF Performance<br>Verifiers are assayed controls used to<br>monitor performance of VITROS RF<br>Reagent on VITROS 5,1 FS Chemistry<br>Systems. |
| Fluid Matrix | Same | A base matrix of processed human serum<br>to which purified human proteins, bovine<br>serum albumin and preservative have<br>been added. |
| Analyte Levels | Same | Low and High |
| Analyte | Antistreptolysin O and Rheumatoid factor | Rheumatoid factor |
| Format | Same | Lyophilized |
### ર. 9 Conclusions
The information presented in this premarket notification provide a reasonable assurance that the VITROS Chemistry Products Calibrator Kit 28 when used in conjunction with VITROS Chemistry Systems FS Calibrator 1 and the VITROS Chemistry Products ASO/RF Performance Verifiers I and II are safe and effective for the stated intended uses.
Continued on next page
Ortho-Clinical Diagnostics, Inc. VITROS Calibrator Kit 28, VITROS FS Calibrator 1, and VITROS ASO/RF Performance Verifiers Page 9 of 32
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Ortho-Clinical Diagnostics, Inc. believes that the VITROS Chemistry Products Calibrator Kit 28, VITROS Chemistry Products FS Calibrator 1, and VITROS Chemistry Products ASO/RF Performance Verifiers I and II are substantially equivalent to the VITROS Chemistry Products Calibrator Kit 16, VITROS Chemistry Products FS Calibrator 1, and VITROS Chemistry Products RF Performance Verifiers I and II, respectively. These predicate devices were cleared by the FDA (K041863) for IVD use.
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Image /page/5/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 department's mission. The eagle is enclosed in a circle with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter.
DEC 1 4 2005
Food and Drug Administration 2098 Gaither Road Rockville MD 20850
Mr. Michael M. Byrne Regulatory Affairs Associate Ortho-Clinical Diagnostics, Inc. 100 Indigo Creek Drive Rochester, NY 14626-5101
Re: k052645
Trade/Device Name: VITROS Chemistry Products Calibrator Kit 28 VITROS Chemistry Products FS Calibrator 1 VITROS Chemistry Products ASO/RF Performance Verifier I and II Regulation Number: 21 CFR 862.1150
Regulation Name: Calibrator Regulatory Class: Class II Product Code: GTQ Dated: November 21, 2005 Received: November 22, 2005
Dear Mr. Byrne:
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 Title 21, Code of Federal Regulations (CFR), Parts 800 to 895. 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 Parts 801 and 809); and good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820).
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Page 2 -
This letter will allow you to begin marketing your device as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.
If you desire specific information about the application of labeling requirements to your device, or questions on the promotion and advertising of your device, please contact the Office of In Vitro Diagnostic Device Evaluation and Safety at (240)276-0484. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97), You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/industry/support/index.html
Sincerely yours,
Sally a story
Sally A. Hojvat, M.Sc., Ph.D. Director Division of Microbiology Devices Office of In Vitro Diagnostic Device Evaluation and Safety Center for Devices and Radiological Health
Enclosure
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# Indications for Use
510(k) Number (if known): K052645
VITROS Chemistry Products Calibrator Kit 28 Device Name: VITROS Chemistry Products FS Calibrator 1 VITROS Chemistry Products ASO/RF Performance Verifiers I and
Indications For Use: For in vitro diagnostic use only. VITROS Chemistry Products Calibrator Kit 28 is used in coniunction with VITROS Chemistry Products FS Calibrator 1 to calibrate VITROS 5,1 FS Chemistry Systems for the quantitative measurement of antistreptolysin O (ASO).
For in vitro diagnostic use only.
VITROS Chemistry Products FS Calibrator 1 is used in conjunction with VITROS Chemistry Products Calibrator Kits 16, 17, 18, 19, and 28 to calibrate VITROS 5,1 FS Chemistry Systems.
For in vitro diagnostic use only. VITROS Chemistry Products ASO/RF Performance Verifiers are assayed controls used to monitor the performance of VITROS ASO and RF Reagent on VITROS 5,1 FS Chemistry Systems.
Prescription Use × (Part 21 CFR 801 Subpart D) AND/OR
Over-The-Counter Use (21 CFR 807 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of In Vitro Diagnostic Devices (OIVD)
Ney Catan
Division Sign-Off
Office of In Vitro Diagnostic Device Evaluation and Safety
Page 1 of 1
510(k) k052645
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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.