The CHILI PACS is a Picture Archiving and Communication System (PACS) intended to enhance the complete imaging workflow, i.e. Displaying Processing Reading Reporting Communicating / distributing Storing / archiving of radiological softcopy images and Storing / archiving of structured (DICOM) reports. The system is a "software only" solution and is intended to assist the physician in diagnosis or treatment planning (excluding screening and primary diagnosis of mammography images). Therefore CHILI PACS supports the following generic imaging workflow: Receive scheduled exams from IS at the CHILI PACS archiving component CHILI Server Provide relevant prior exams and reports (Structured Reports only) to the Modalities and Workplaces Receive and store new exams from the Modalities at the CHILI Server Prepare images for reading Report new images, if required by comparing them with prior exams and reports Demonstrate exams at Radiological Demos View exams and reports at Workplaces outside Radiology (e.g. Surgery, Intensive Case Unit, wards, external referring physicians). Note: The workstation deployment CHILI 3D-Plugln is not intended for primary diagnosis.
Device Story
CHILI PACS is a modular, software-only picture archiving and communication system (PACS) for radiological practices and hospitals. It ingests radiological images and structured reports in DICOM format from imaging modalities. The system consists of a backend server for storage and communication, and various workplace deployments: CHILI Web (web-based viewing), CHILI Workstation (reporting), and CHILI 3D-Plugin (3D/4D reconstruction). It integrates with HIS/RIS via HL7/DICOM. Physicians and technicians use the system to access, manipulate, and report on images. The output—viewable softcopy images and reports—assists clinicians in diagnosis and treatment planning. The system facilitates workflow from patient registration to reporting and distribution across clinical departments (e.g., surgery, ICU).
Clinical Evidence
No clinical data. Substantial equivalence is supported by bench testing, software verification, and validation procedures conducted in accordance with recognized industry practices and FDA guidance for medical image management and software devices.
Technological Characteristics
Software-only system; backend server runs on SuSE Linux; workstations run on Windows XP, SuSE Linux, or MacOS X (Web). Supports DICOM formatted images and objects. Integrates with HL7/DICOM-compatible HIS/RIS. Modular architecture for storage, reporting, and 3D/4D reconstruction.
Indications for Use
Indicated for radiologists, radiological technicians, and healthcare professionals to manage, view, process, and distribute radiological softcopy images and DICOM reports for diagnosis or treatment planning. Excludes screening and primary diagnosis of mammography images. CHILI 3D-Plugin is not 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).
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K070796
#### 3 510(k) Summary
APR - 6 2007
#### 3.1 Owner Information
| Owner's Name: | CHILI GmbH |
|------------------|-----------------------------------------------------------------------------------------------------------------------------|
| Owner's Address: | Burgstrasse 61<br>D-69121 Heidelberg, Germany<br>Phone: (+49) 6221 1 80 79 - 10<br>Fax: (+49) 6221 1 80 79 - 11 |
| Representative: | Peter Kayser (CEO)<br>Burgstrasse 61<br>D-69121 Heidelberg, Germany<br>Phone: +49 6221 180 79 10<br>Fax: +49 6221 180 79 11 |
| Date prepared: | March 12, 2007 |
## 3.2 Device name
| Trade Name: | will be first marketed as CHILI PACS Version 2006-09 |
|-------------------------|------------------------------------------------------|
| Common Name: | PACS |
| Classification Name: | Picture Archiving and Communication System |
| Classification Number: | Class II |
| Classification Code: | 21 CFR §892.2050 |
| Classification Panel: | Radiology |
| Predicate Device: | syngo Imaging Version V20A (K052461) |
| Reason for the 510 (k): | New device |
# 3.3 Device Description and Intended Use
This premarket notification covers CHILI's PACS system "CHILI PACS".
CHILI PACS is a "software only" - solution. It is a modular system, consisting of modules which can be combined for the specific needs of a customer, including a backend communication and storage component and different workplace deployments for medical imaging tasks and applications.
CHILI PACS is the integrated radiology suite for radiological practices and community hospitals. Important factors are the centralized server structure, the wide-ranging data distribution and the overall integrated concept, ranging from reporting and archiving as well as image and report distribution.
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#### CHILI PACS Integrated Workplaces / CHILI PACS Image Distribution.
The three CHILI PACS workplace deployments
- a) CHILI Web for image distribution (web-based viewing application suited for primary diagnosis)
- b) CHILI Workstation for reporting, inside as well as outside of the radiology (standalone workstation or client workstation connected to server)
- c) CHILI 3D-Plugln (optional) for 3D- and 4D reconstructions of image slices generated by digital modalities and stored in the DICOM format (not intended for primary diagnosis)
are medical diagnostic and viewing workstations intended for manipulating, reading, reporting, viewing and communicating / distributing of radiological softcopy images and so allows radiologists, radiological technicians and health care professionals to receive and process all data needed.
#### Data Management: CHILI Server.
Ensures all authorized personnel fast and continuous access to radiological data. It's main functionality ranges from availability of images having regard to data security, open interfaces, storage media, central system administration, back-up, software distribution to providing a flexible storage hierarchy.
The main purpose is storing and archiving of radiological softcopy images and structured (DICOM) reports.
## Integration: CHILI Workflow Integration.
The Workflow Management enables by integration of any HL7- / DICOM-compatible HIS, RIS (IHE Year 5) and other information systems to the CHILI PACS a consistent workflow - from patient registration to requirement scheduling to a personal worklist and supports therefore reporting, documentation or administrative tasks.
#### 3.4 Device Technological Characteristics
CHILI PACS is a "software only"-system, which will be delivered on CD-ROM / DVD and installed by service engineers. Hardware requirements to be met are therefore defined.
The backend communication and storage solution is based on the SuSE Linux operating system. The workplaces are based on Windows XP or SuSE Linux operating system, or MacOS X in case of CHILI Web.
The herewith described CHILI PACS supports DICOM formatted images and objects.
#### 3.5 Testing and Equivalence
The CHILI PACS, addressed in this premarket notification, is substantially equivalent to the following commercially available device:
. syngo Imaging Version V20A K052461
The CHILI PACS described in this 510(k) has the same intended use and similar technical characteristics as the devices listed above.
In summary, CHILI is of the opinion that CHILI PACS does not introduce any new potential safety risks and is substantially equivalent to and performs as well as the predicate devices.
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# 3.6 General Safety and Effectiveness Concerns
The device labelling contains instructions for use and any necessary cautions and warning, to provide for safe and effective use of the device.
Risk management is ensured via a risk analysis, which is used to identify potential hazards. These potential hazards are controlled via software development, verification and validation testing. To minimize electrical, mechanical, and radiation hazards, CHILI GmbH adheres to recognized and established industry practice and standards.
# 3.7 Guidance Documents
- · Guidance for the Submission of Premarket Notification for Medical Image Management Devices, July 27, 2000.
- Guidance for the Content for Premarket Submissions for Software Contained in Medi-. cal Devices, May 11, 2005.
- · Off-The-Shelf Software Use in Medical Devices, September 9, 1999
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# Third Party Review Quality Assessment
Section 1 - Submission Information
| 510(k) No.: | K070796 |
|---------------------------|------------------|
| Third Party Organization: | TÜV SÜD America. |
Third Party's Primary Reviewer(s): Stefan Preiss
ODE/OIVD Division: DRARD Branch/Team: Radiological Devices Branch
# Section 2 - 510(k) Decision
_ NSE ________________________________________________________________________________________________________________________________________________________________________ Other (specify): Third party recommendation: SE V______________________________________________________________________________________________________________________________________________ SE NSE NSE SE ODE/OIVD final decision: Other (specify): _____________________________________________________________________________________________________________________________________________________________
# Section 3 - Assessment of Third Party Review
| Review Element | Rating (check one) | | |
|---------------------------------------------------------------------------------------------------------------------------------------------|--------------------|----------------|----------------|
| | Adequate | Minor Issue(s) | Major Issue(s) |
| a. Determination of device eligibility for third party review | √ | | |
| b. Extent of pre-submission consultation with ODE/OIVD division | | | |
| c. Organization and format of review documentation | √ | | |
| d. Determination of 510(k) administrative completeness (screening review) | √ | | |
| e. Summary of device characteristics, intended use, and performance (including accessories, if applicable) and reason for 510(k) submission | √ | | |
| f. Comparison to legally marketed devices—identification and analysis of key similarities and differences | √ | | |
| g. Rationale for conclusions and recommendation | √ | | |
| h. Use of guidance documents and standards | | | |
| i. Resolution of 510(k) deficiencies and FDA requests for additional information | | | |
| j. Scope of reviewer expertise and use of consulting reviewers | | | |
| k. Other (specify): | | | |
Comments (explanation of ratings/issues): ____________________________________________________________________________________________________________________________________
# Section 4 - ODE/OIVD Assessor Information
Sunder Rajan_ Date: April 5, 2007 Tel. No.: 240 276 3968 Assessed by:
Routing: Division--Clip completed assessment (this page only) to inside front cover of 510(k). DMC -- Forward this page only to Eric Rechen, POS/ODE, Rm. 120J, Corp. Blvd. (HFZ-402).
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Image /page/4/Picture/0 description: The image shows a logo with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES" arranged vertically along the left side. To the right of the text is a stylized graphic consisting of three abstract figures or shapes stacked vertically. The figures appear to be interconnected or overlapping, creating a sense of unity or collaboration. The logo is simple and uses a monochromatic color scheme.
Food and Drug Administration 9200 Corporate Blvd. Rockville MD 20850
Chili GmbH c/o Mr. Stefan Preiss Responsible Third Party Official TÜV SÜD America, Inc. 1775 Old Hwy 8 NW, Ste. 104 NEW BRIGHTON MN 55112-1891
APR 6 2007
Re: K070796
> Trade/Device Name: CHILI PACS Regulation Number: 21 CFR §892.2050 Regulation Name: Picture archiving and communications system Regulatory Class: II Product Code: LLZ Dated: March 21, 2007 Received; March 23, 2007
Dear Mr. Preiss:
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 in the Medical in the Nate 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 registrations, 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 Approval), it may be subject to such additional controls. Existing major regulations affecting your may publich further and of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register,
Image /page/4/Picture/10 description: The image is a circular logo with the text "1906-2006" at the top. Below that is the acronym "FDA" in large, bold letters. Underneath the acronym is the word "Centennial" in a smaller font. There are three stars below the word "Centennial". The text around the circle is difficult to read.
Protecting and Promoting Public Health
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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.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 premarket notification" (21 CFR 807.97). 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 (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/industry/support/index.html
Sincerely yours.
Nancy C. Brogdon
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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#### Indications for Use 2
510(k) Number (if known):
Device Name:
CHILI PACS
### Indications For Use:
The CHILI PACS is a Picture Archiving and Communication System (PACS) intended to enhance the complete imaging workflow, i.e.
- Displaying
- Processing
- Reading
- Reporting
- Communicating / distributing
- Storing / archiving of radiological softcopy images and
- Storing / archiving of structured (DICOM) reports.
The system is a "software only" solution and is intended to assist the physician in diagnosis or treatment planning (excluding screening and primary diagnosis of mammography images).
Therefore CHILI PACS supports the following generic imaging workflow:
- Receive scheduled exams from IS at the CHILI PACS archiving component CHILI . Server
- Provide relevant prior exams and reports (Structured Reports only) to the Modalities and Workplaces
- Receive and store new exams from the Modalities at the CHILI Server
- · Prepare images for reading
- Report new images, if required by comparing them with prior exams and reports
- · Demonstrate exams at Radiological Demos
- View exams and reports at Workplaces outside Radiology (e.g. Surgery, Intensive Case Unit, wards, external referring physicians).
Note: The workstation deployment CHILI 3D-Plugln is not intended for primary diagnosis.
AND/OR Prescription Use _ Over-The-Counter Use (Part 21 CFR 801 Subpart D)
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)
David A. Seymann
n of Reproductive, Abdomina
Page 5
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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.