This software is used with general purpose computing hardware for the storage, review, analysis, annotation, distribution, printing, editing, and processing of digital images and data acquired from imaging devices such as CR, CT, DX, MR, MG, NM, PT, RF, US, XA, film digitizers, and document scanners, and other DICOM devices. With appropriate hardware, the software is intended for use as a primary diagnostic, analysis, and review tool for use by trained healthcare professionals. It is the user's responsibility to ensure image quality, lighting, and image compression ratios are suitable for the clinical application. Digitized film should not be used for primary diagnosis in mammography. Lossy compression should not be used for primary diagnosis in mammography. Primary diagnosis on digital mammograms should not be done on any monitors other than those specifically cleared by the FDA for digital mammography applications. Film printing for digital mammography should not be performed on any printers other than those specifically cleared by the FDA for digital mammography applications.
Device Story
PowerServer suite (PowerServer, PowerReader, Gateway, PowerCache) functions as a PACS for clinical image management. System operates on general-purpose computing hardware; stores/distributes images via DICOM protocol. PowerServer handles storage/archiving; PowerCache acts as a caching server to optimize network traffic; PowerReader and Gateway serve as workstations for viewing, editing, annotating, and analyzing images. Healthcare professionals use the system to process and review medical images for clinical decision-making. Preserves original image data; saves display changes as presentation states. Enables efficient clinical workflow by providing centralized access to diagnostic data.
Clinical Evidence
Bench testing only. Validation included hazard analysis, requirements reviews, design reviews, code reviews, unit testing, system testing, and performance testing. No clinical data provided.
Technological Characteristics
Software-based PACS running on general-purpose computing hardware. DICOM compliant for image storage, retrieval, and transmission. Supports lossless and lossy image compression. Connectivity via standard network protocols. No specific hardware requirements beyond minimum OS/processing specs. Sterilization not applicable (software).
Indications for Use
Indicated for trained healthcare professionals to store, review, analyze, annotate, distribute, print, edit, and process digital medical images (CR, CT, DX, MR, MG, NM, PT, RF, US, XA, film digitizers, document scanners) for diagnostic purposes. Contraindicated for primary diagnosis in mammography using digitized film, lossy compression, non-cleared monitors, or non-cleared printers.
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).
Centricity PACS System (GE Medical Systems Information Technologies) (K043415)
Submission Summary (Full Text)
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K052460
510(k) Summary of Safety and Effectiveness
Date: September 13, 2005
Submitter: RamSoft Inc 16 Four Seasons Place, Suite 215 Toronto, ON M9B 6E5, CANADA
Contact Name: Vijay Ramanathan
Trade Names: PowerServer, PowerReader, Gateway, PowerCache
Common Name: Picture Archiving and Communication System (PACS)
Classification Name: LLZ - Image Processing System (892.2050)
Substantially Equivalent devices: RamSoft PACS (RamSoft Inc) - K031562 Centricity PACS System (GE Medical Systems Information Technologies) -K043415
Description:
The PowerServer software suite is used on general purpose computing hardware and includes the following components: PowerServer, PowerReader, Gateway, and PowerCache. As long as minimum hardware and operating system requirements are met, the user or system integrator is free to choose his/her own hardware platform.
PowerServer is a scalable storage and distribution system for clinical images and data. Images can be stored in lossless or lossy formats. The system is DICOM compliant for image storage, archiving, retrieval, and transmission, and communicates with other DICOM devices. The system also communicates with PowerReader workstations and PowerCache servers. Acquired image data is preserved as captured and changes to display definitions are saved as presentation states so that images may always be reverted back to their initial state. PowerCache is a caching server that communicates with PowerServer and serves PowerReader workstations. A single PowerCache can serve multiple PowerReader workstations, reducing network traffic between PowerReader workstations and PowerServer.
PowerReader is a workstation that views, edits, manipulates, annotates, analyzes, stores, and distributes images and data stored on PowerServer and PowerCache. PowerReader can connect directly to PowerServer and can also connect via PowerCache. PowerReader provides the user with the ability to import, transmit, print, display, store, edit, and process medical images and data.
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510(k) Summary of Safety and Effectiveness
Gateway is a stand-alone DICOM compliant workstation that views, edits, manipulates, annotates, analyzes, stores, and distributes images and data. Gateway provides the user with the ability to import, transmit, print, display, store, edit, and process medical images and data.
Intended Use:
This software is used with general purpose computing hardware for the storage, review, analysis, annotation, distribution, printing, editing, and processing of digital images and data acquired from imaging devices such as CR, CT, DX, MR, MG, NM, PT, RF, US, XA, film digitizers, and document scanners, and other DICOM devices. With appropriate hardware, the software is intended for use as a primary diagnostic, analysis, and review tool for use by trained healthcare professionals.
It is the user's responsibility to ensure image quality, lighting, and image compression ratios are suitable for the clinical application.
Digitized film should not be used for primary diagnosis in mammography. Lossy compression should not be used for primary diagnosis in mammography. Primary diagnosis on digital mammograms should not be done on any monitors other than those specifically cleared by the FDA for digital mammography applications. Film printing for digital mammography should not be performed on any printers other than those specifically cleared by the FDA for digital mammography applications.
## Technology:
This device employs the same functional scientific technology as its predicate devices.
## Test Summary:
This device complies with the voluntary standards as detailed in Section A.8 of the 510(k) submission. The following testing measures were applied to the development of this device:
- Hazard Analysis .
- Requirements Reviews .
- . Design Reviews
- . Code Reviews
- Unit Testing t
- . System Testing
- Validation Testing .
- Performance Testing .
## Conclusion:
This device is as safe, as effective, and performs as well as predicate devices.
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Image /page/2/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a stylized caduceus symbol, which features three parallel lines resembling bird wings or feathers. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged in a circular pattern around the caduceus. The logo is in black and white.
Public Health Service
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
Mr. Vijay Ramanathan President and CEO RamSoft, Inc. 16 Four Seasons Place, Suite 215 Toronto, ON, M9B 6E5 CANADA
SEP 2 1 2005
Re: K052460 Trade/Device Name: PowerServer, PowerReader, Gateway, and PowerCache Regulation Number: 21 CFR 892.2050 Regulation Name: Picture archiving and communications system Regulatory Class: II Product Code: LLZ Dated: September 13, 2005 Received: September 14, 2005
Dear Mr. Ramanathan:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced we have leviewed your bettler by substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to the enerobate) to the enactment date of the Medical Device Amendments, or to devices that have been May 20, 1770, and chance 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 do not require upproval of a provisions of the Act. The general controls provisions of the Act device, subjoct to the generation, 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 (Premarket n your do role is election (t to such additional controls. Existing major regulations affecting your Apployally, It they of below 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 I DA nas made a no 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.
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This letter will allow you to begin marketing your device as described in your Section 510(k) I his letter will anow you to ocgin mancing your avice of your device of your device to a legally premarket notification. The PDA miding of sabstantial of a permits 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), pleased If you desire spectic advice for your device on our laboring numbers, based on the regulation number at the top of this letter:
| 21 CFR 876.xxxx | (Gastroenterology/Renal/Urology) | 240-276-0115 |
|-----------------|----------------------------------|--------------|
| 21 CFR 884.xxxx | (Obstetrics/Gynecology) | 240-276-0115 |
| 21 CFR 892.xxxx | (Radiology) | 240-276-0120 |
| Other | | 240-276-0100 |
Also, please note the regulation entitled, "Misbranding by reference to premated notification" (21 CFR Also, please note the regulation entitled, "rinsonalists of our responsibilities under the Act from the 180 807.97). You may obtain other general miornation on Jour September Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/industry/support/index.html.
Sincerely yours,
Nancy C. Hogdon
Nancy C. Brogdon Director, Division of Reproductive, Abdominal, and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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510(k) Number (if known): K052460
Device Names: PowerServer, PowerReader, Gateway, PowerCache
Indications for Use:
This software is used with general purpose computing hardware for the storage, review, This software is used with general purpose editing, and processing of digital images and analysis, annotation, distribution, printing, coming, conning, Can., MR, MG, NM, PT, RF, US,
data acquired from imaging devices such as CR, CT, DX, MR, MG, NM, PT, RF, US, data acquired from imaging devices such as CR, OT, OT, COM devices. With appropriate XA, film digitizers, and document scauncis, and other Drognostic, analysis, and review tool for use by trained healthcare professionals.
It is the user's responsibility to ensure image quality, lighting, and image compression in ratios are suitable for the clinical application.
Digitized film should not be used for primary diagnosis in mammography. Lossy Digitized inin should not be used for primary diagnosis in mammography. Primary compression should not be used for primary claghests in any more of economics on the than those diagnosis on digital mammograms should not be done on any more them them them them for specifically cleared by the I DA for digital mannogan printers other than those
digital mammography should not be performed on any printers other than those digital mammography should not of persons mammography applications.
## (PLEASE DO NOT WRITE BELOW THIS LINE -- CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
| Prescription Use | X |
|------------------|---|
|------------------|---|
-OR- Over-The-Counter Use ____________________________________________________________________________________________________________________________________________________
David h. Syam
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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.