The DigiArc 100AU+ is a mobile digital X-ray G-Arm diagnostic system, which is intended to generate X-ray fluoroscopic image of a patient. The application includes: real-time positioning and monitoring operations in trauma surgery, orthopedics, spine surgery, and chest surgery, it is not intended to be used in interventional procedures. The DigiArc 100AU+ permits a qualified doctor or technologist to take a range of diagnostic exposures of spinal column, chest, abdomen, extremities, and other body parts on the patients at the age of at least eighteen.
Device Story
Mobile digital X-ray G-Arm system; generates real-time fluoroscopic images for surgical positioning/monitoring. Features two X-ray tube assemblies and two image intensifiers in perpendicular configuration on G-Arm; allows simultaneous or separate operation. Includes tracking wheel system for mobility and laser aimer system (Class 2) for patient positioning. Operated by physicians or technologists in surgical settings (trauma, orthopedics, spine, chest). Output displayed on viewing monitors to assist clinical decision-making during surgery. Benefits include improved visualization for surgical guidance.
Clinical Evidence
Bench testing only. Device demonstrated compliance with AAMI/ANSI ES60601-1:2005, IEC 60601-1-2:2007, IEC 60601-1-3:2008, and IEC 60601-2-54:2009. Laser aimer system tested to IEC 60950-1:2006 and IEC 60825-1:2007.
Technological Characteristics
Mobile digital X-ray fluoroscopic system. Dual X-ray tube/image intensifier assemblies. Includes tracking wheel and Class 2 laser aimer. Connectivity: DICOM compliant. Standards: AAMI/ANSI ES60601-1, IEC 60601-1-2, IEC 60601-1-3, IEC 60601-2-54, IEC 60950-1, IEC 60825-1.
Indications for Use
Indicated for patients aged 18+ requiring real-time fluoroscopic imaging for positioning and monitoring during trauma, orthopedic, spine, and chest surgeries. Not for interventional procedures.
Regulatory Classification
Identification
An image-intensified fluoroscopic x-ray system is a device intended to visualize anatomical structures by converting a pattern of x-radiation into a visible image through electronic amplification. This generic type of device may include signal analysis and display equipment, patient and equipment supports, component parts, and accessories.
Special Controls
*Classification.* Class II (special controls). An anthrogram tray or radiology dental tray intended for use with an image-intensified fluoroscopic x-ray system only is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 892.9. In addition, when intended as an accessory to the device described in paragraph (a) of this section, the fluoroscopic compression device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 892.9.
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JUL 3 1 2014
# 510(k) Summary of Safety and Effectiveness
[As required by 21 CFR 807.92]
## 1. Date Prepared [21 CFR807.92 (a) (1)]
June 19th 2014
### 2. Submitter's Information [21 CFR807.92 (a) (1)]
Name of Sponsor: Beijing East Whale Imaging Technology Co., Ltd.
Address: B2-2 New City Industrial Park, No.9 KeChuang 2nd St.,
YiZhuang, Beijing, 100023, China
Contact Name: June Li
Telephone No .: + 86 (10) 67892355- 8968
Fax No.: + 86 (10) 67082218
Email Address: jqli@whaleimaging.com
### 3. Trade Name, Common Name, Classification [21 CFR807.92(a)(2)]
| Trade Name: | DigiArc 100AU+ |
|-----------------------|---------------------------------------------|
| Common Name: | MultiScan G-Arm System |
| Classification: | Image-intensified fluoroscopic X-ray system |
| Product code: | OXO, JAA |
| Classification Panel: | Radiology |
| Device Class: | II |
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### 4. Identification of Predicate Device(s) [21 CFR 807.92(a)(3)]
| 510(k) Number | K131423 |
|---------------|-------------------------------------------------|
| Applicant | Beijing East Whale Imaging Technology Co., Ltd. |
| Device Name | G-Arm MultiScan System |
### 5. Description of the Device [21 CFR 807.92(a)(4)]
The DigiArc 100AU+ is a mobile digital X-ray G-Arm diagnostic system, which is intended to generate X-ray fluoroscopic image of a patient. The application includes: real-time positioning and monitoring operations in trauma surgery, orthopedics, spine surgery, and chest surgery, it is not intended to be used in interventional procedures.
There are two sets of X-ray tube assemblies and Image Intensifiers which are perpendicularly distributed on the G-Arm, acting as two sets of vertical X-ray source and receptor systems and providing fluoroscopy image of the patient. The two sets of X-ray tube assemblies and Image Intensifiers can operate simultaneously and separately.
The DigiArc 100AU+ includes below primary components.
| | Table 1- Primary components list |
|--|----------------------------------|
|--|----------------------------------|
| Component | Quantity |
|-----------------|----------|
| Control unit | 1 |
| Viewing monitor | 2 |
| Control monitor | 1 |
| Control panel | 1 |
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| G-Arm | 1 |
|----------------------------------------------|---|
| Image intensifier assembly | 2 |
| X-ray tube assembly | 2 |
| Foot switch subassembly | 1 |
| Laser aimer system | 1 |
| Tracking wheel system | 1 |
| Printer (optional): thermal or laser printer | 1 |
## 6. Intended Use [21 CFR 807.92(a)(5)]
The current modifications do not change the indications for use. As previously reported and cleared: the DigiArc 100AU+ is a mobile digital X-ray G-Arm diagnostic system, which is intended to generate X-ray fluoroscopic image of a patient. The application includes: real-time positioning and monitoring operations in trauma surgery, orthopedics, spine surgery, and chest surgery, it is not intended to be used in interventional procedures. The DigiArc 100AU+ permits a qualified doctor or technologist to take a range of diagnostic exposures of spinal column, chest, abdomen, extremities, and other body parts on the patients at the age of at least eighteen.
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### 7. Technological Characteristics [21 CFR 807.92(a)(6)]
The design modifications do not alter the device's fundamental scientific technology.
The DigiArc 100AU+ employs the same technological characteristics as the predicate devices except items in table 2. However, it employs the same imaging concepts and fundamental scientific technology with the predicate device and the differences do not impact the safety and effectiveness of the device.
Table 2. Major differences between proposed device and predicate device
| ltem | Predicate device<br>DigiArc 100AU ( K131423 ) | Proposed device<br>DigiArc 100AU+ | Note |
|--------------------------|-----------------------------------------------|-----------------------------------|--------|
| Tracking wheel<br>system | No | Yes | Note 1 |
| Laser aimer<br>system | No | Yes | Note 2 |
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Note1: The tracking wheel system is fixed on the G-Arm, it helps users move the G-Arm easily, design change concerning tracking wheel system is mechanical difference. There is no new technology on the mechanical design and the updated G-arm has passed all the tests in according to AAM / ANSI ES60601-1:2005, thus this difference will not affect safety and effectiveness.
- Note 2: The laser aimer system contains two sets of laser emitter. The two sets of laser emitter are respectively fixed on enclosure of the two intensifiers, acts as a patient positioning system. The laser aimer system does not change the fundamental scientific technology and has nothing to do with the imaging process. The laser classification of the laser component is 2, and it has past all the tests in according to IEC 60950-1:2006 and IEC 60825-1:2007, besides the updated device has passed all the tests in according to AAMI / ANSI ES60601-1:2005, thus this difference will not affect safety and effectiveness.
# 8. Substantial Equivalence [21 CFR 807.92(b)(1) and 807.92(b)(2)]
Results of performance and compliance testing conducted on DigiArc 100AU+ indicates conformance to all applicable standards recognized by FDA for this device.
Testing result from non-clinical demonstrates that the proposed device DigiArc 100AU+ is as safe and effective as the predicate devices.
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**WHALE**
Non-clinical testing:
The proposed device has been tested to compliance to the following safety and performance standards:
AAMI / ANSI ES60601-1:2005
IEC 60601-1-2:2007
IEC 60601-1-3:2008
IEC 60601-2-54:2009
And also the proposed device meets the provisions of Digital Imaging communications in Medicine (DICOM)
### 9. Conclusion [21 CFR 807.92(b) (3)]
In accordance with the Federal Food, Drug and Cosmetic Act, 21 CFR Part 807 and based on the non-clinical result and relative information provided in this premarket notification, we concludes that DigiArc 100AU+ is substantially equivalent to predicate devices with regard to safety and effectiveness.
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### DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/6/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 a staff with a serpent entwined around it, and three horizontal bars above it. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged in a circular fashion around the symbol.
#### Public Health Service
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
July 31, 2014
Beijing East Whale Imaging Technology Co., Ltd. % Ms. June Li RA Engineer B2-2 New City Industrial Park No. 9 Kechuang 2nd Street Yizhuang, Beijing 100023 CHINA
Re: K141672
Trade/Device Name: DigiArc 100AU+ Regulation Number: 21 CFR 892.1650 Regulation Name: Image-intensified fluoroscopic system Regulatory Class: II Product Code: OXO, JAA Dated: June 30, 2014 Received: July 2, 2014
Dear Ms. Li:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); 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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Page 2-Ms. Li
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Industry and Consumer Education at its toll-free number (800) 638 2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.goy/MedicalDevices/Resourcesfor You/Industry/default.htm.
Sincerely yours,

for
Janine M. Morris Director Division of Radiological Health Office of In Vitro Diagnostics and Radiological Health Center for Devices and Radiological Health
Enclosure
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510(k) submission
### WHALE
### Indications for Use
510(k) Number (if known): in process K141672 MultiScan G-Arm System Device Name: Indications for Use: The current modifications do not change the indications for use , as previously reported and cleared. The DigiArc 100AU+ is a mobile digital X-ray G-Arm diagnostic system, which is intended to generate X-ray fluoroscopic image of a patient. The application includes: real-time positioning and monitoring operations in trauma surgery, orthopedics, spine surgery, and chest surgery, it is not intended to be used in interventional procedures. The DigiArc 100AU+ permits a qualified doctor or technologist to take a range of diagnostic exposures of spinal column, chest, abdomen, extremities, and other body parts on the patients at
Prescription Use な (Part 21 CFR 801 Subpart D) AND/OR
the age of at least eighteen.
Over-The-Counter Use (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of In Vitro Diagnostic Devices and Radiological Health (OIR)
Sm.h.7)
(Division Sign-Off) Division of Radiological Health Office of In Vitro Diagnostics and Radiological I lealth
> K141672 510(k)
Page 1 of 1
Indications for Use
008-1
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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.