The MasterX 800 Series is intended for use by a qualified/trained doctor or technologist. As part of a radiographic system, the MasterX 800 Series is intended to acquire digital radiographic images on adult and pediatric patients. It is suitable for all routine radiography exams, including specialist areas like intensive care or trauma work, excluding fluoroscopy, angiography and mammography.
Device Story
MasterX 800 Series is a digital diagnostic X-ray system upgrade kit; utilizes solid-state digital X-ray acquisition panels (InnoCare Yushan series) and Voyance software; acquires digital radiographic images for routine exams; operated by qualified doctors or technologists in clinical settings; panels available in 14x17 or 17x17 sizes, tethered or wireless; system integrates with existing or new radiographic equipment; output is digital image data compliant with DICOM 3 standards; aids clinicians in diagnostic decision-making; benefits patients through digital image acquisition for routine, trauma, and ICU radiography.
Clinical Evidence
No clinical data. Evidence consists of bench testing, safety testing, and software validation. Integration testing confirmed correct performance of all digital panels within the system. Compliance with IEC 60601-1 and IEC 60601-1-2 standards demonstrated.
Technological Characteristics
Stationary X-ray system upgrade; digital panels use Cesium Iodide (CsI) or Gadolinium Oxysulfide (GOS) with a-Si photodiode; 140 μm pixel pitch; 16-bit A/D conversion; wireless (IEEE 802.11 ac/a/g/n) or tethered Ethernet connectivity; AC or battery powered; DICOM 3.0 compliant; software-based image acquisition; complies with IEC 60601-1 and IEC 60601-1-2.
Indications for Use
Indicated for adult and pediatric patients requiring routine radiographic exams, including intensive care and trauma settings. Excludes fluoroscopy, angiography, and mammography.
Regulatory Classification
Identification
A stationary x-ray system is a permanently installed diagnostic system intended to generate and control x-rays for examination of various anatomical regions. This generic type of device may include signal analysis and display equipment, patient and equipment supports, component parts, and accessories.
Special Controls
*Classification.* Class II (special controls). A radiographic contrast tray or radiology diagnostic kit intended for use with a stationary x-ray system only is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 892.9.
Predicate Devices
KrystalRad "New Series" Radiographic Portable Retrofit (K130377)
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Image /page/0/Picture/0 description: The image shows the logo of the U.S. Food and Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is the FDA logo, which is a blue square with the letters "FDA" in white. To the right of the square are the words "U.S. FOOD & DRUG" in blue, with the word "ADMINISTRATION" below it.
September 1, 2023
Medicatech USA % Daniel Kamm Principal Engineer Kamm & Associates 8870 Ravello Court NAPLES FL 34114
Re: K230918
Trade/Device Name: MasterX 800 Series Regulation Number: 21 CFR 892.1680 Regulation Name: Stationary x-ray system Regulatory Class: Class II Product Code: MQB Dated: August 7, 2023 Received: August 7, 2023
Dear Daniel Kamm:
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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. 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. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to 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
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requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
Lu Jiang
Lu Jiang, Ph.D. Assistant Director Diagnostic X-ray Systems Team DHT8B: Division of Radiological Imaging Devices and Electronic Products OHT8: Office of Radiological Health Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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# Indications for Use
510(k) Number (if known)
### K230918
Device Name MasterX 800 Series
Indications for Use (Describe)
The MasterX 800 Series is intended for use by a qualified/trained doctor or technologist. As part of a radiographic system, the MasterX 800 Series is intended to acquire digital radiographic images on adult and pediatric patients. It is suitable for all routine radiography exams, including specialist areas like intensive care or trauma work, excluding fluoroscopy, angiography and mammography.
Type of Use (Select one or both, as applicable)
| <span style="font-size:16px">☒</span> Prescription Use (Part 21 CFR 801 Subpart D) |
|------------------------------------------------------------------------------------|
| <span style="font-size:16px">☐</span> Over-The-Counter Use (21 CFR 801 Subpart C) |
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510(K) Summary, 510(k) Submitter: MedicaTech USA 50 Maxwell Irvine , CA , 92618 Toll Free : +1 800 817 5030 Phone : +1 949 679 2881 FAX : +1 949 679 2882 Registration Number 3004989804 Contact: George Makar, Predsident Date Prepared: August 25, 2023
#### 1. Identification of the Device:
Trade/Device Names: MasterX 800 Series Regulation Number: 21CFR 892.1680 Regulation Name: Stationary X-Ray System Regulatory Class: II Product Code: MQB Common/Usual Name: Digital Diagnostic X-Ray System Upgrade
- 2. Equivalent legally marketed device: K130377 Trade/Device Name: KrystalRad "New Series" Radiographic Portable Retrofit Manufacturer: MedicaTech USA Regulation Number: 21CFR892.1680 Regulation Name: Stationary X-Ray System Regulatory Class: II Product Code: MQB Common/Usual Name: Digital Diagnostic X-Ray System Upgrade
- 3. Reference Devices: Uses software cleared in our 510(k) number K190601, but updated. Uses one of the following previously cleared digital receptor panels, supplied unmodified:
| InnoCare Model Name Yushan Series | 510(K)<br>numbers | Product code/regulation |
|------------------------------------------------------------------|-------------------|-------------------------|
| Yushan V14C/ Yushan V14G/ Yushan V17C/ Yushan V17G/ Yushan V17Ge | K201528 | MQB/21CFR892.1680 |
| Yushan F14C/ Yushan F14G | K210988 | MQB/21CFR892.1680 |
| Yushan V17Ce | K220510 | MQB/21CFR892.1680 |
- 4. Indications for Use The MasterX 800 Series is intended for use by a qualified/trained doctor or technologist. As part of a radiographic system, the MasterX 800 Series is intended to acquire digital radiographic images on adult and pediatric patients. It is suitable for all routine radiography exams, including specialist areas like intensive care or trauma work, excluding fluoroscopy, angiography and mammography.
- 5. Description of the Device: This device represents a new combination of already cleared solid state digital x-ray acquisition panels and already cleared software. It is suitable for use with adult and pediatric populations. This is an upgrade kit for existing or new systems.
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The purchaser may select their digital panel from this list:
| InnoCare Model<br>Name Yushan<br>Series | MedicatechUSA<br>Model Name<br>Masterx80XX | 510(K)<br>number | Size and Description |
|-----------------------------------------|--------------------------------------------|------------------|-----------------------------------------------------------|
| Yushan V14C | MasterX80IC | K201528 | 14X17 Csi Wireless Panel (Can work as Tethered) |
| Yushan V14G | MasterX801G | K201528 | 14X17 GOS Wireless Panel (Can work as Tethered) |
| Yushan F14C | MasterX802C | K210988 | 17X17 Csi Wireless Panel (can work as Tethered) |
| Yushan F14G | MasterX802G | K210988 | 17X17 GOS Wireless Panel (can work as Tethered ) |
| Yushan V17C | MasterX803C | K201528 | Glassless 14X17 Csi Wireless Panel (Can work as Tethered) |
| Yushan V17G | MasterX803G | K201528 | Glassless 14X17 GOS Wireless Panel (Can work as Tethered) |
| Yushan V17Ce | MasterX804Ce | K220510 | 17X17 Csi Fixed Tethered Panel |
| Yushan V17Ge | MasterX804Ge | K201528 | 17X17 GOS Fixed Tethered Panel |
As compared to our predicate system, the digital panels are more recently cleared by FDA. The image acquisition software is our Voyance software most recently cleared in K190601. The digital panels all comply with the voluntary IEC 60601-1 and IEC 60601-1-2.
- 6. Safety and Effectiveness, comparison to predicate device. This combination device has the same indications for use and very similar technological characteristics as the predicate device, and employs already 510(k) cleared digital panels (except for the Toshiba unit) and software.
#### 7. Substantial Equivalence Chart:
| Item | K130377 KystalRad "New Series"<br>Radiographic Portable Retrofit | MasterX 800 Series | Comment |
|-----------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------|
| Indications<br>for Use: | Intended for use by a qualified/trained<br>doctor or technologist. As part of a<br>radiographic system, the KrystalRad<br>"New Series" is intended td acquire<br>digital radiographic images. It is<br>suitable for all routine radiography<br>exams, including specialist areas like<br>intensive care or trauma work,<br>excluding fluoroscopy, angiography and<br>mammography. | The MasterX 800 Series is intended for use<br>by a qualified/trained doctor or<br>technologist. As part of a radiographic<br>system, the MasterX 800 Series is intended<br>to acquire digital radiographic images on<br>adult and pediatric patients. It is suitable for<br>all routine radiography exams, including<br>specialist areas like intensive care or trauma<br>work, excluding fluoroscopy, angiography<br>and mammography. | Patient<br>population<br>added. |
| Configur-<br>ation of<br>Digital Panels | Battery or AC operated wireless IEEE<br>ac/a/g/n or Wired Ethernet (depending<br>on the model chosen) | Battery or AC operated wireless IEEE ac /<br>a/g/n or Wired Ethernet (depending on the<br>model chosen) | Exactly the<br>same. |
| Power<br>Source | AC Line or Rechargeable Battery<br>Battery life up to 8 hours | AC Line or Rechargeable Battery<br>Battery life up to 8 hours<br>Some models use AC Line only. See chart<br>above. | SAME |
| Item | K130377 KystalRad "New Series"<br>Radiographic Portable Retrofit | MasterX 800 Series | Comment |
| Digital Panel<br>Models | Vieworks Vivix-S K122866 or<br>Vivix-S Wireless K122865 | 8 new models from InnoCare, see list in<br>paragraph 5, above. | Newer<br>models |
| Panel<br>Performance | DQE @ 1lp/mm : 50 %<br>MTF @ 1lp/mm : 60 % | DQE at 1 lp/mm, 50%<br>MTF @ 1 lp/mm, 63% | Similar |
| Interface | Tethered or Wireless | Tethered or Wireless (See table above) | SAME |
| Photo<br>(example) | Image: Two radiographic panels, one with a cable attached. | Image: Two radiographic panels. | Similar<br>appear-<br>ance. |
| Panel sizes | 14" x 17" or 17" x 17" | SAME sizes are available. | SAME |
| X-ray<br>Conversion<br>Layer | Cesium lodide (Csl) with Amorphous<br>Silicon (a-Si) Photodiode | Csi OR GOS (GOS is lower cost but has nearly<br>comparable peformance) | SAME |
| Active Areas | Wired panel pixels:<br>2,560 x 3,072, or 3,072 x 3,072<br>or Wireless panel pixels<br>2560 x 3072 | MasterX80IC/G: 2500 x 3052<br>MasterX802C/G: 2500 x 3052<br>MasterX803C/G: 3072 x 3072<br>MasterX804Ce/Ge: 3072 x 3072 (wired<br>only) | Nearly<br>identical |
| Pixel pitch | 140 μm | 140 μm | SAME |
| A/D<br>Conversion | 14 Bits | All the new panels have 16 bit conversion | Better |
| Image<br>acquisition<br>software | Voyance | Voyance | SAME |
| DICOM | DICOM 3 | DICOM 3 | SAME |
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- Summary of non-clinical testing: We performed software validation and risk management for the 8. updated software version. The following FDA guidances were employed in those activities: Guidance for the Content of Premarket Submissions for Software Contained in Medical Devices and Content of Premarket Submissions for Management of Cybersecurity in Medical Devices. The software comlies with NEMA PS 3.1 - 3.18 (2009) Digital Imaging and Communications in Medicine (DICOM) Set. Our labeling reflects the FDA guidance: Pediatric Information for X-ray Imaging Device Premarket Notifications. We performed integration testing to show that each panel performed correctly in the full system. The software comlies with NEMA PS 3.1 - 3.18 (2009) Digital Imaging and Communications in Medicine (DICOM) Set. The results of a review of bench, safety test, and software validation documentation indicates that the new device is as safe and effective as the predicate device
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- Summary of clinical testing: Not required. 9.
- 10. Conclusion: After analyzing software integration validation, safety testing data, and test MasterX 800 Series images, it is the conclusion of Medicatech USA that the MasterX 800 Series system is as safe and effective as the predicate device, has insignificant technological differences, and has identical indications for use, thus rendering it substantially equivalent to the predicate device.
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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.