Intended for digital image capture use in general radiographic examinations, wherever conventional screen-film systems may be used, excluding fluoroscopy, angiography and mammography. ViZion DR + Wireless allows imaging of the skull, chest, shoulders, spine, abdomen, pelvis, and extremities.
Device Story
ViZion DR + Wireless is a digital radiography system consisting of a flat panel detector (FPD) and software. It replaces conventional film-screen systems for general radiographic examinations. The device captures X-ray signals using a Cesium Iodide (CSI) or Gadolinium Oxysulfide (GOS) scintillator, converting them into digital images. It features Automatic Exposure Detection (AED), eliminating the need for direct generator synchronization, though wired synchronization is supported for specific generators. The system transmits images via Gigabit Ethernet or IEEE 802.11 a/b/g/n wireless protocols to a PACS environment. Operated by clinicians in a filmless environment, the system provides digital images for diagnostic review. The primary benefit is improved cost-effectiveness and workflow efficiency compared to traditional film-based radiography.
Clinical Evidence
Clinical image evaluation performed by a board-certified radiologist. Images acquired with the modified CSI scintillator panel were compared to the predicate GOS panel. The radiologist concluded that the image quality of the modified device is as good as or better than the predicate device.
Technological Characteristics
Digital X-ray receptor panel (14" x 17"). Scintillator: Cesium Iodide (CSI) or Gadolinium Oxysulfide (GOS). Pixel size: 150 µm. A/D conversion: 14-bit. Connectivity: Gigabit Ethernet (1000BASE-T) and IEEE 802.11 a/b/g/n. Power: AC line or rechargeable Lithium battery. Electrical safety: IEC 60601-1. EMC: IEC 60601-1-2. Compliance: FCC Part 15. DICOM 3.0 compatible.
Indications for Use
Indicated for digital image capture in general radiographic examinations (skull, chest, shoulders, spine, abdomen, pelvis, extremities) in patients requiring X-ray imaging. Contraindicated for 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.
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Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
May 20, 2016
Viztek LLC % Daniel Kamm Principal Engineer Kamm & Associates 8870 Ravello Ct Naples, Florida 34114
Re: k160810
Trade/Device Name: Vizion Dr + Wireless Regulation Number: 21 CFR 892.1680 Regulation Name: Stationary X-Ray System Regulatory Class: Class II Product Code: MQB Dated: March 21, 2016 Received: March 24, 2016
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. 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 requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical devicerelated adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in
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the quality systems (OS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. 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
http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely yours,
For
Robert Ochs Director Division of Radiological Health Office of In Vitro Diagnostics and Radiological Health Center for Devices and Radiological Health
Enclosure
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## Indications for Use
510(k) Number (if known) K16
Device Name ViZion DR + Wireless
Indications for Use (Describe)
Intended for digital image capture use in general radiographic examinations, wherever conventional screen-film systems may be used, excluding fluoroscopy, angiography and mammography. ViZion DR + Wireless allows imaging of the skull, chest, shoulders, spine, abdomen, pelvis, and extremities ..
Type of Use (Select one or both, as applicable)
| <span> <span style="font-size: 16px;">☑</span> Prescription Use (Part 21 CFR 801 Subpart D) </span> |
|-------------------------------------------------------------------------------------------------------|
| <span> <span style="font-size: 16px;">☐</span> Over-The-Counter Use (21 CFR 801 Subpart C) </span> |
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## 510(k) Summarv 510(k) Number K160810 Viztek, LLC. 2217 US HWY 70 East • Garner, NC 27529 Phone: 800.366.5343 Fax: 904.448.9936 Date Prepared: April 5, 2016 Bruce Ashby, Sales and Marketing Manager Contact:
- 1. Identification of the Device: Proprietary-Trade Name: ViZion DR + Wireless Classification Name: Stationary x-ray system. Product Code MOB Common/Usual Name: Digital X-Ray Receptor Panel Device Class/Regulation Number: Class II per regulation 892.1680
- 2. Equivalent legally marketed device: ViZion DR + Wireless, K152279, Viztek. Classification Name: Stationary x-ray system, Product Code MQB Common/Usual Name: Digital X-Ray Receptor Panel Device Class/Regulation Number: Class II per regulation 892.1680
- 3. Indications for Use (intended use) ViZion DR + Wireless is intended for digital image capture use in general radiographic examinations, wherever conventional screen-film systems may be used, excluding fluoroscopy, angiography and mammography. ViZion + Wireless allows imaging of the skull, chest, shoulders, spine, abdomen, pelvis, and extremities.
- 4. Description of the Device: The ViZion DR + Wireless system represents the straightforward integration of a modified digital x-ray receptor panel and our previously cleared software. This is a MODIFICATION of our clearance K152279 wherein we have changed the panel scintillator to Cesium Iodide in addition to having the GOS scintillator available. Changing the scintillator is the only modification.
ViZion DR + Wireless is a Digital Radiography system, featuring an integrated flat panel digital detector (FPD). ViZion DR + Wireless is designed to perform digital radiographic examinations as a replacement for conventional film. This integrated platform provides the benefits of PACS with the advantages of digital radiography for a filmless environment and improves cost effectiveness. The major functions and principle of operation of the Viztek PACS and the new receptor panel were not changed. Our predicate is ViZion DR + Wireless, K152279. We do not supply the router, but any router meeting the IEEE 802.11 a/b/g/n specifications will work. With the advent of AED (automatic exposure detection) by the panel, integration with or connection to specific generators is no longer required. If the user decides NOT to use AED, wired synchronization with Sedecal Series SHF generators is known to work.
- 5. Safety and Effectiveness, comparison to predicate device. The results of clinical image inspection, bench, and test laboratory results indicates that the new device is as safe and effective as the predicate device. Clinical images collected demonstrate equal or better image quality as compared to our predicate.
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# 6. Substantial Equivalence Chart
| | Viztek ViZion DR + Wireless K152279 | ViZion DR + Wireless, CSI Scintillator |
|---------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Intended Use: | Intended for digital image capture use in<br>general radiographic examinations, wherever<br>conventional screen-film systems may be<br>used, excluding fluoroscopy, angiography and<br>mammography. ViZion + Wireless allows<br>imaging of the skull, chest, shoulders, spine,<br>abdomen, pelvis, and extremities. | UNCHANGED |
| Configuration | Digital Panel and Software only, no generator<br>or stand provided. | UNCHANGED |
| Digital Panel | iRay Technology (Shanghai) Ltd.<br>Mars1417V-PSI 14" x 17" panel:<br>Pixel size 150 µm<br>$2304\times2800$ (6.45 million pixels) | iRay Technology (Shanghai) Ltd.<br>Mars1417V-TSI 14" x 17" panel:<br>Pixel size 150 µm<br>$2288x2784$ (6.37 million pixels)<br>NOT a meaningful DIFFERENCE. |
| Internal<br>image storage | 200 full size images | UNCHANGED |
| Image<br>acquisition<br>time | < 5 Seconds | UNCHANGED |
| DICOM 3 | Yes | YES |
| A/D<br>Conversion | 14 bit | UNCHANGED |
| Scintillator | DRZ-Plus Gd2O2S:Tb | CSI (Cesium Iodide) |
| MTF | 0.75 at 0.5 (1/mm) (GOS) | 0.83 at 0.5 (1/mm) (CSI) (Better) |
| DQE | 0.27 at 0.5 (1/mm) (GOS) | 0.55 at 0.5 (1/mm) (CSI) (Better) |
| Interface | Wired : Gigabit Ethernet (1000BASE-T)<br>Wireless : IEEE802.11a/b/g/n | UNCHANGED |
| Power source | AC Line and/or Rechargeable Lithium Battery<br>(4 hr run time) | UNCHANGED |
| Photo: Panel | Image: Panel | Image: Panel |
| Photo:<br>Charging<br>Station | | |
| Electrical<br>safety and<br>EMC | Electrical Safety per IEC 60601-1 and EMC per<br>IEC 60601-1-2. Complies with FCC Part 15<br>Rules and Regulations | SAME |
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- 7. Summary of Bench Testing Conducted: IEC Standards were employed for: Electrical Safety and Electromagnetic Compatibility. We compared MTF and DQE measurements for the original and wireless versions of the panel and found them to be similar enough not to make a notable difference in acquired images. Risk Analysis and System operation verification tests were conducted in accordance with FDA guidance documents. Since no software modifications were required, confirmation testing was performed. Wireless communication testing was performed to verify wireless connectivity. We used a Cisco Linksys EA2700. The device was also found to comply with FCC requirements for wireless operation.
- Summary of Clinical Testing: Clinical images were acquired and evaluated by a board certified 8. radiologist who concluded the images from the modified panel are as good as or better than the images acquired with the predicate panel.
- 9. Conclusion: After analyzing bench, clinical image, and external laboratory testing to applicable standards, it is the conclusion of Viztek Inc that the ViZion DR + Wireless is as safe and effective as the predicate device, has few technological differences, and has no new indications for use, thus rendering it substantially equivalent to the predicate device.
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.