The Portable X-ray System (Model: DIOX-602, PROX) is intended to be used by trained dentists and dental technicians as extraoral x-ray source for producing diagnostic x-ray images using intraoral image receptors. Its use is intended for both adult and pediatric subjects.
Device Story
Portable dental X-ray system; hand-held enclosure containing X-ray generator, controller, and beam-limiting device. Operates on 24VDC via rechargeable Li-Polymer battery. Input: manual settings for exposure time, tooth region, patient age (adult/child), and receptor type (film/sensor). Principle: high-frequency inverter converts DC to AC to drive X-ray tube; X-rays penetrate tooth/jaw to create images on intraoral receptors. Used in dental clinics by dentists or technicians. Output: X-ray beam for diagnostic imaging. Benefits: provides sharp images while minimizing radiation exposure to patients and operators. Includes remote controller for exposure switching.
Clinical Evidence
No clinical data provided. Substantial equivalence established via bench testing and performance evaluation, including compliance with IEC 60601-1, IEC 60601-1-2 (EMC), IEC 60601-1-3, IEC 60601-2-7, IEC 60601-2-28, and IEC 60601-2-32 standards.
Indicated for use by trained dentists and dental technicians as an extraoral X-ray source for diagnostic imaging of teeth and jaws in adult and pediatric patients using intraoral image receptors.
Regulatory Classification
Identification
An extraoral source x-ray system is an AC-powered device that produces x-rays and is intended for dental radiographic examination and diagnosis of diseases of the teeth, jaw, and oral structures. The x-ray source (a tube) is located outside the mouth. This generic type of device may include patient and equipment supports and component parts.
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K082 167
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SEP 2 6 2008
# 5 510(k) Summary
#### 5.1 Company and Correspondent Making the Submission:
| Date Prepared: | June 16, 2008 |
|----------------|------------------------------------------------------------------------------------------------|
| Name: | DIGIMED Corporation |
| Address: | #715, World Meridian Venture Center II, 426-5 Gasan-Dong<br>Gumcheon-Gu, Seoul, 153-803, Korea |
| Tel: | +82-2-2025-8780 |
| Fax: | +82-2-2025-8782 |
| E-mail: | digi-med@hanmail.net |
| Contact: | Youngbae Kwon, Managing Director |
: 上一篇:
#### 5.2 US Agent for FDA Contact:
| Name: | Shin Kuk Yoo |
|----------|----------------------------|
| Company: | LSK BioPartners, Inc. |
| Address: | 215 S. State St. STE100B |
| | Salt Lake City, Utah 84111 |
| Tel: | 801-303-7440 (Ext. 202) |
| Fax: | 801-303-7455 |
| Email: | skyone@LSKBioPartners.com |
#### 5.3 Device Information:
. ...
.
| Proprietary-Trade Name: | Portable X-Ray System (Models: DIOX-602, PROX) |
|-------------------------|----------------------------------------------------------------------------|
| Classification Name: | Extraoral Source X-Ray System: EHD, Class II per regulation 21CFR 872.1800 |
| Common/Usual Name: | Portable X-Ray System |
| Manufacturer: | GENORAY Co., Ltd. |
|-----------------|----------------------------------------------------------------------------|
| Device: | Portable X-Ray System (Model: PORT-X II) |
| Classification: | Extraoral Source x-Ray System: EHD, Class II per regulation 21CFR 872.1800 |
| 510(k) Number: | K063121 (Decision Date: Jan. 11, 2007) |
:
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#### 5.5 Indications for Use (Intended Use):
The Portable X-ray System (Model: DIOX-602, PROX) is intended to be used by trained dentists and dental technicians as extraoral x-ray source for producing diagnostic x-ray images using intraoral image receptors. Its use is intended for both adult and pediatric subjects.
#### 5.6 Description of Device
The Portable X-ray System (Model: DIOX-602, PROX) is portable dental X-ray system that operates on 24VDC supplied by a rechargeable Li-Polymer battery pack. The X-ray controls and power source are assembled into a single hand-held enclosure. The package includes battery charger.
The Portable X-ray System generates and controls X-ray in order to diagnose of tooth and jaw. It is composed of X-ray generator, controller and beam limiting device. Operating principle is that X-ray generated by high voltage electricity into X-ray tube, which penetrates tooth and jaw, and makes X-ray images on receptor (chemical film or digital sensor).
The Portable X-ray System (Model: DIOX-602, PROX) is a diagnostic x-ray system, which is intended to be used by trained dentists and dental technicians as an extra-oral xray source for producing diagnostic x-ray images using intra-oral image receptors.
Its use is intended for both adult and pediatric subjects. This device includes a high frequency inverter that changes direct current to alternating current, X-ray tube, electrical protective devices, and other elements. The portable X-ray system (Model: DIOX-602, PROX) provides with sharp and clear images and keeps patients and dentists away from radiation using small dose of radiation.
#### 5.7 Safety and Effectiveness, Comparison to Predicate Device:
The result of bench testing and clinical evaluation indicates that the subject device is as safe and effective as the predicate devices.
#### 5.8 Safety, EMC and Performance Data:
The portable x-ray system, DIOX-602 and PROX, will comply with applicable requirements of the Underwriters Laboratories Standard for Safety-UL/IEC 60601-1, IEC 60601-1-3, IEC 60601-2-7, IEC 60601-2-28 and IEC 60601-2-32. All required documents and reports will be submitted to the appropriate oversight agency to establish compliance with the applicable requirements.
EMS testing was conducted by EMC Compliance Co., Ltd. for DIOX-602 and SGS Testing Korea Co., Ltd. for PROX in accordance with Standard EN/IEC 60601-1-2. All test results were satisfactory.
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#### 5.9 Substantial Equivalence Chart
| Company | GENORAY Co. | DIGIMED Corp. | |
|--------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------|
| Model | PORT-X II | DIOX-602 | PROX |
| 510(k) No | K063121 | New | |
| Energy source | Rechargeable 22.2V<br>DC Lithium Polymer<br>battery pack | Rechargeable 24V, DC Lithium Polymer Battery pack | |
| Expose time | 0.01-2.0 seconds<br>0.01 increments | 0.01-1.6 seconds, 0.01 increments | |
| Time accuracy | $\pm$ (10%+1ms) | $\pm$ (10%+1ms) | |
| mA | 2mA fixed | 2mA fixed | |
| kVp | 60kV fixed | 60kV fixed | |
| Wave form | Constant Potential (DC) | Constant Potential (DC) | |
| Safety, EMC and<br>performance | IEC 60601-1, IEC 60601-<br>2-7<br>IEC 60601-2-28,<br>IEC 60601-2-32 | IEC 60601-1, IEC 60601-2-7, IEC 60601-2-28,<br>IEC 60601-2-32 | |
| Source to skin<br>distance | 20cm | 20cm | |
| Cone diameter | 7Cm | 6.5 Cm | 6 Cm |
| User Interface | Exposure time: up, down.<br>Selection buttons of parts<br>of teeth, adult and child,<br>film and sensor with<br>display. | Exposure time: up, down.<br>Two buttons for modes<br>and selection of parts of<br>teeth, adult and child,<br>film and sensor with<br>display. | Exposure time: up, down.<br>Selection<br>buttons of parts of<br>teeth, adult and child,<br>film and sensor with<br>display. |
| Exposure switch | Control panel and<br>remote controller | Control panel and remote controller | |
| Tube head<br>mounting | Yes | Yes | |
| Intended use | Intended to use by trained dentists and dental technicians as an extra-oral x-ray<br>source for producing diagnostic x-ray images using intra-oral image receptors or<br>film. It is intended to use for both adult and pediatric subjects. | | |
### 5.10 Conclusion
In accordance with the Federal Food, Drug and Cosmetic Act, 21 CFR Part 807 and based on the information provided the above comparison table, the DIGIMED Corporation concludes that the portable X-ray System (Model: DIOX-602, PROX) is safe and effective and substantially equivalent to the predicate device as described above.
.
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### DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/3/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo features a stylized caduceus, a symbol often associated with medicine and healthcare. The caduceus is depicted with a modern, abstract design. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged in a circular pattern around the caduceus.
### Public Health Service
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
## SEP 2 6 2008
DIGIMED Corporation % Mr. Shin Kuk Yoo Business Development Manager LSK BioPartners, Inc. 215 S. State Street, STE 100B SALT LAKE CITY UT 84111
Re: K082167
Trade/Device Name: Portable x-ray system (Models: DIOX-602, PROX) Regulation Number: 21 CFR 872.1800 Regulation Name: Extraoral source x-ray system Regulatory Class: II Product Code: EHD Dated: July 29, 2008 Received: July 31, 2008
### Dear Mr. Yoo:
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 ffor 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.
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### Page 2
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.
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 advice for your device on our labeling regulation (21 CFR Part 801), please contact the Office of Compliance at one of the following numbers, based on the regulation number at the top of this letter:
| 21 CFR 876.xxx | (Gastroenterology/Renal/Urology) | 240-276-0115 |
|----------------|----------------------------------|--------------|
| 21 CFR 884.xxx | (Obstetrics/Gynecology) | 240-276-0115 |
| 21 CFR 894.xxx | (Radiology) | 240-276-0120 |
| Other | | 240-276-0100 |
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding postmarket surveillance, please contact CDRH's Office of Surveillance and Biometrics' (OSB's) Division of Postmarket Surveillance at 240-276-3474. For questions regarding the reporting of device adverse events (Medical Device Reporting (MDR)), please contact the Division of Surveillance Systems at 240-276-3464. 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 (240) 276-3150 or at its Internet address http://www.fda.gov/odrh/industry/support/index.html.
Sincerely yours.
hope Mr. Whang
Joyce M. Whang, Ph.D. Acting Director, Division of Reproductive, Abdominal, and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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## Indications for Use
510(k) Number (if known): K082167
Device Name: Portable x-ray system (Models: D1OX-602, PROX) Indications for Use:
> The Portable X-ray System (Model: DIOX-602, PROX) is intended to be used by trained dentists and dental technicians as extraoral x-ray source for producing diagnostic x-ray images using intraoral image receptors. Its use is intended for both adult and pediatric subjects.
Prescription Use _____________________________________________________________________________________________________________________________________________________________ (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (Part 21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED) -
Concurrence of CDRH, Office of Device Evaluation (ODE)
Hw Lewis
(Division Sign-Off) Division of Reproductive, Abdominal and Radiological Devices 510(k) Number
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.