DEMASQ Imaging Software Device™ is a software device that receives medical images and data from various imaging sources (including but not limited to CT, MR, US, RF units, computed and direct radiographic devices, and secondary capture devices, (scanners, imaging gateways or imaging sources). Images and data can be stored, communicated, processed and displayed within the system or across computer networks at distributed locations. Only pre-processed DICOM for presentation images can be interpreted for primary image diagnosis in mammography. Lossy compressed Mammographic images and digitized film screen images must not be reviewed for primary image interpretations. Mammographic images may only be interpreted using an FDA approved monitor that offers at least 5 Mpixel resolution and meets other technical specifications reviewed and accepted by FDA. Typical users of this system are trained professionals, e.g. physicians, radiologists, nurses, medical technicians, and assistants.
Device Story
DEMASQ Imaging Software Device™ (DISD) is a PACS DICOM viewing software for IBM-compatible PCs (Windows OS). It receives medical images from various modalities (CT, MR, US, RF, radiography); stores, processes, and routes data via network. Users (radiologists, clinicians) utilize a GUI to manipulate images (color, crop, zoom, rotate, measure). Output is displayed on monitors for diagnostic interpretation. Supports DICOM 3.0 and TCP/IP. Facilitates remote diagnosis via telecommunications networks. Benefits include replacement of traditional film handling, improved workflow, and access to diagnostic data for clinical decision-making.
Clinical Evidence
No clinical data provided. Bench testing only.
Technological Characteristics
Software-only PACS; runs on Windows (98 SE, NT 4.0, XP, Vista). Connectivity via Ethernet (TCP/IP). Supports DICOM 3.0 standard. Features include image manipulation (contrast, magnification, measurement), remote transmission, and online help. Does not contact patient; no life-sustaining function.
Indications for Use
Indicated for trained professionals (physicians, radiologists, nurses, technicians) to receive, store, communicate, process, and display medical images (CT, MR, US, RF, radiographic) for diagnostic review. Mammography requires pre-processed DICOM for presentation images and 5 Mpixel FDA-approved monitors; lossy compressed or digitized film-screen mammography images are contraindicated for primary diagnosis.
Regulatory Classification
Identification
A medical image management and processing system is a device that provides one or more capabilities relating to the review and digital processing of medical images for the purposes of interpretation by a trained practitioner of disease detection, diagnosis, or patient management. The software components may provide advanced or complex image processing functions for image manipulation, enhancement, or quantification that are intended for use in the interpretation and analysis of medical images. Advanced image manipulation functions may include image segmentation, multimodality image registration, or 3D visualization. Complex quantitative functions may include semi-automated measurements or time-series measurements.
Special Controls
*Classification.* Class II (special controls; voluntary standards—Digital Imaging and Communications in Medicine (DICOM) Std., Joint Photographic Experts Group (JPEG) Std., Society of Motion Picture and Television Engineers (SMPTE) Test Pattern).
{0}------------------------------------------------
510(k) Summary of Safety and Effectiveness
This 510(k) summary of safety and effectiveness information is being submitted in accordance with the requirements of SMDA 1990.
Date Prepared: November 20, 2008
Submitter's Information: 21 CFR 807.92(a)(1) Mr. Stuart Gall, CEO DEMASQ Limited 8th Floor Eastgate House 35-43 Newport Road Cardiff, Wales CF240AB United Kingdom +44 114 275555 Tel: +44 292 0491275 Fax: Email: stuartgall(@demasq.com
Trade Name, Common Name and Classification: 21 CFR 807.92(a)(2)
| Trade Name: | DEMASQ Imaging Software Device™ |
|------------------------|-----------------------------------------|
| Common Name: | Picture Archiving Communications System |
| Classification Name: | system, image processing, radiological |
| Product code: | LLZ |
| Device Classification: | 892.2050 |
Predicate Device: 21 CFR 807. 92(a)(3)
| 510(k) Number | K052545 | K071894 |
|----------------------------|-------------------------------------------|-------------------------------------------|
| Device Classification Name | system, image processing,<br>radiological | system, image processing,<br>radiological |
| Regulation Number | 892.2050 | 892.2050 |
| Device Name | INFINITT G3 PACS | XEBRA DICOM IMAGE<br>BROWSER |
| Applicant | INFINITT CO., LTD. | HX TECHNOLOGIES, INC. |
| Product Code | LLZ | LLZ |
| Decision Date | 11/08/2005 | 08/16/2007 |
Device Description: 21 CFR 807 92(a)(4)
DEMASQ Imaging Software Device™ (DISD) is a user network and or a web-based PACS DICOM viewing software running on an IBM Compatible PC with a Windows 98 SE, Windows NT 4.0 (with SP 5 or later), XP or Vista operating system.
DISD is adapted for, storing, processing, routing and report generating. DISD supports the DICOM standard. To assist interpretation a user-friendly interface will allow the enduser to color, crop, zoom, rotate, measure and save the image. Images can be saved to a desktop or network as a standard file format.
DISD allows users to take full advantage of the radiographic images from digital X-ray and various modalities in order to obtain invaluable mission critical diagnostic data and images.
l
{1}------------------------------------------------
### 510(k) Summary of Safety and Effectiveness
#### Indications for Use: 21 CFR 807 92(a)(5)
DEMASQ Imaging Software Device™ is a software device that receives medical images and data from various imaging sources (including but not limited to CT, MR, US, RF units, computed and direct radiographic devices, and secondary capture devices, (scanners, imaging gateways or imaging sources). Images and data can be stored, communicated, processed and displayed within the system or across computer networks at distributed locations.
Only pre-processed DICOM for presentation images can be interpreted for primary image diagnosis in mammography.
Lossy compressed Mammographic images and digitized film screen images must not be reviewed for primary image interpretations. Mammographic images may only be interpreted using an FDA approved monitor that offers at least 5 Mpixel resolution and meets other technical specifications reviewed and accepted by FDA. Typical users of this system are trained professionals, e.g. physicians, radiologists, nurses, medical technicians, and assistants.
#### Technological Characteristics: 21 CFR 807 92(a)(6)
DEMASQ Imaging Software Device™ is a software device that does not contact the patient, nor does it control any life sustaining devices.
A physician, providing ample opportunity for competent human intervention interprets images and information being displayed and printed.
DEMASQ Imaging Software Device ™ and its predicates have essentially the same technological characteristics.
The predicate devices and the new device are software PACS for use in medical image acquisition, management, manipulation, and distribution. All systems have been developed to replace traditional film handling in radiology.
The new device and predicate devices are substantially equivalent in the areas of technical characteristics, general function, application, and intended use.
The predicate device and the new device include the following similar features and functionality:
- Advanced reviewing features as contrast adjustments, magnification and more. .
- Evaluation of general parameters such as pixel values and measurements of . distances and angles in the images.
- Possibility of remote diagnoses through transmission via public or private . telecommunications network (including the Internet) of an examination.
- Image data acquisition based on Ethernet communication standard with TCP/IP file . transfer protocol and DICOM 3.0 radiology image file standards
- A user interface using Microsoft Windows operating systems. .
- Internal handling of images in DICOM 3.0 format. .
- On-line help system t
#### Conclusion: 21 CFR 807 92(b)(1)
The 510(k) Pre-Market Notification for DEMASQ Imaging Software Device™ contains adequate information and data to enable FDA - CDRH to determine substantial equivalence to the predicate device. The subject device has been designed and will be delivered in accordance with the voluntary standards.
{2}------------------------------------------------
Image /page/2/Picture/0 description: The image shows the seal of the U.S. Department of Health & Human Services. The seal features a stylized eagle with three lines forming its body and head. The words "DEPARTMENT OF HEALTH & HUMAN SERVICES • USA" are arranged in a circular pattern around the eagle.
## DEPARTMENT OF HEALTH & HUMAN SERVICES
Public Health Service
# MAR 1 9 2009
### Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
DEMASQ Limited % Mr. Jeff D. Rongero Senior Project Engineer Underwriters Laboratories, Inc. 12 Laboratory Drive Research Triangle Park, NC 27709
Re: K090481
Trade/Device Name: DEMASQ Imaging Software Device™ Regulation Number: 21 CFR 892.2050 Regulation Name: Picture archiving and communications system Regulatory Class: II Product Code: LLZ Dated: February 20, 2009 Received: February 24, 2009
### Dear Mr. Rongero:
We have reviewed vour 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. Ilsting 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.
{3}------------------------------------------------
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 os 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 892.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 Manufactures, 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/cdrh/industry.suppor/index.html.
Sincerely yours,
Laura M. Morris
anine M. Morris Acting Director, Division of Reproductive. Abdominal, and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health
{4}------------------------------------------------
### Indications for Use
510(k) Number (if known): K09048
Device Name: DEMASQ Imaging Software Device™
Indications for Use:
DEMASQ Imaging Software Device™ is a software device that receives medical images and data from various imaqing sources (including but not limited to CT. MR. US, RF units, computed and direct radiographic devices, and secondary capture devices, (scanners, imaging gateways or imaging sources). Images and data can be stored. communicated, processed and displayed within the system or across computer networks at distributed locations.
Only pre-processed DICOM for presentation images can be interpreted for primary image diagnosis in mammography.
Lossy compressed Mammographic images and digitized film screen images must not be reviewed for primary image interpretations. Mammographic images may only be interpreted using an FDA approved monitor that offers at least 5 Mpixel resolution and meets other technical specifications reviewed and accepted by FDA. Typical users of this system are trained professionals, e.g. physicians, radiologists, nurses, medical technicians, and assistants.
Prescription Use X (Part 21 CFR 801 Subpart D)
AND/OR
Over-The-Counter Use (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE OF NEEDED).
Concurrence of CDRH, Office of In Vitro Diagnostic Devices (OIVD)
Division Sign-Off Office of In Vitro Øiagnostic Device Evaluation and Safety
510(k)
Hedy Lamarr
(Division Sign-Off) Division of Reproductive. Abdominal Radiological Devices 510(k) Number
Page 1 of 1 Updated June 4, 2007
Predicate graph will load when search results are available.
Embedding visualization will load when search results are available.
PDF viewer will load when search results are available.
Loading panels...
Select an item from Submissions
Click any panel, subpart, regulation, product code, or device to see details here.
Section Matches
Results will appear here.
Product Code Matches
Results will appear here.
Special Control Matches
Results will appear here.
Loading collections...
Loading
My Alerts
You will receive email notifications based on the filters and frequency you set for each alert.
Sort by:
Create Alert
Search Filters
Agent Token
Create a read-only bearer token for Claude, ChatGPT, or other agents that can call HTTP APIs.
Copy this now. It will not be shown again.
Connected apps
Apps you authorized through browser sign-in. Disconnecting revokes their access immediately.
Learn the FDA Browser
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.