The equipment is intended to be used for the fluoroscopy/radiography diagnosis in hospital. The equipment must only be operated by qualified personnel, such as radiography technicians or those with equivalent qualifications. The equipment is used for total patient population. The equipment is NOT intended to be used for Mammography screening. The equipment is NOT intended to be used for interventional procedure. The equipment is used for radiographic, fluoroscopic, angiographic and pediatric examinations. Stored images in the equipment can be used for re-monitoring, image processing, storing to optical media (CD/DVD), and sending to DICOM server. The Tomosynthesis option for the SONIAL VISION G4 is intended to generate tomographic images of human anatomy including chest or extremities. Tomosynthesis technique is used to produce a specific cross-sectional plane of the body by reconstruction of tomographic acquisition. The device is not intended for mammographic applications.
Device Story
Universal X-ray RF system; floor-mounted table; includes X-ray generator, collimator, and tube. Performs radiographic, fluoroscopic, angiographic, and tomosynthesis imaging. Operated by physicians or radiography technicians in hospitals. Tomosynthesis option uses software to reconstruct tomographic acquisitions into cross-sectional planes of anatomy (e.g., chest, extremities). Images stored, processed, or sent to DICOM servers. Output used by clinicians for diagnostic assessment. Benefits include cross-sectional visualization of anatomy without interventional procedures.
Clinical Evidence
Clinical performance testing involved a comparative review of clinical images taken via tomosynthesis technique on various anatomies. Images from the subject device were compared against the secondary predicate device (Discovery XR656). A U.S. certified radiologist performed the review, concluding the subject device is substantially equivalent in diagnostic capability.
Technological Characteristics
Floor-mounted X-ray RF system. Components: Digital Radiography System, X-ray High Voltage Generator, Collimator, X-ray Tube. Energy source: X-ray. Connectivity: DICOM server. Software: Tomosynthesis reconstruction algorithm. Standards: IEC60601-1-2 (EMC), ISO 10993-1:2009 (Biocompatibility), IEC60601-1-3 (Radiation safety).
Indications for Use
Indicated for fluoroscopy, radiography, angiography, and pediatric examinations in hospital settings. Intended for total patient population. Not for mammography screening or interventional procedures. Tomosynthesis option indicated for generating tomographic images of human anatomy, including chest or extremities.
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.
Discovery XR656 with VolumeRad (Digital Tomosynthesis) (K132261)
Submission Summary (Full Text)
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Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
March 6, 2015
Shimadzu Corporation % Mr. Don Karle Manager, Customer Service 20101 South Vermont Avenue TORRANCE CA 90502-1328
Re: K142341
Trade/Device Name: X-ray TV System SonialVision G4 Regulation Number: 21 CFR 892.1650 Regulation Name: Image-intensified fluoroscopic x-ray system Regulatory Class: II Product Code: JAA Dated: February 3, 2015 Received: February 11, 2015
Dear Mr. Karle:
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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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/Resourcesfor You/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.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely yours,
Robert A Ochs
Robert Ochs. Ph.D. Acting Director Division of Radiological Health Office of In Vitro Diagnostics and Radiological Health Center for Devices and Radiological Health
Enclosure
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# Indications for Use
510(k) Number (if known) K142341
Device Name X-RAY TV SYSTEM SONIALVISION G4
Indications for Use (Describe)
The equipment is intended to be used for the fluoroscopy/radiography diagnosis in hospital.
The equipment must only be operated by qualified personnel, such as radiography technicians or those with equivalent qualifications.
The equipment is used for total patient population.
The equipment is NOT intended to be used for Mammography screening.
The equipment is NOT intended to be used for interventional procedure.
The equipment is used for radiographic, fluoroscopic, angiographic and pediatric examinations.
Stored images in the equipment can be used for re-monitoring, image processing, storing to optical media (CD/DVD), and sending to DICOM server.
The Tomosynthesis option for the SONIAL VISION G4 is intended to generate tomographic images of human anatomy including chest or extremities. Tomosynthesis technique is used to produce a specific cross-sectional plane of the body by reconstruction of tomographic acquisition. The device is not intended for mammographic applications.
Type of Use (Select one or both, as applicable)
X Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
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SECTION V:
## 510(k) Summary
The following information is submitted in accordance with the requirements of 21 CFR§807.92.
### 1) Date of Submission
July 30th, 2014
## 2) Submitter
SHIMADZU CORPORATION 1, Nishinokyo-Kuwabaracho, Nakagyo-ku, Kyoto, 604-8511, Japan Registration Number: 8030233 Phone: +81-75-823-1305 Fax : +81-75-823-1377
### 3) Primary Contact Person
Toshio Kadowaki Phone: +81-75-823-1920
E-mail: kadowaki@shimadzu.co.jp
## 4) Secondary Contact Person
Don Karle SHIMADZU MEDICAL SYSTEMS USA 20101 South Vermont Ave., Torrance, CA 90502 USA Phone: 310-217-8855 ext 109 Email: karle@shimadzu-usa.com
### 5) Device
| Name of Device | : X-RAY TV SYSTEM SONIALVISION G4 |
|----------------------|-----------------------------------------------------------------|
| Common Nam | : X-RAY RF SYSTEM |
| Classification Name | : Image-intensified fluoroscopic x-ray system (21 CFR§892.1650) |
| Classification Panel | : Radiology |
| Regulatory Class | : Class II |
| Product Code | : JAA |
### 6) Predicate Device
Primary Predicate Device: X-RAY TV SYSTEM SONIALVISION G4 (K131075) SHIMADZU CORPOATION
Secondary Predicate Device: Discovery XR656 with VolumeRad (Digital Tomosynthesis) (K132261) GE Medical Systems, LLC.
No reference devices were used in this submission.
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#### SECTION V:
### 510(k) Summary
#### 7) Purpose of Submission
The purpose of this submission is to notify FDA of our intent to introduce a modified device of a legally marketed device, K131075 X-RAY TV SYSTEM SONIALVISION G4. The modification is to add "Tomosynthesis technique" to its indication for use, which is substantially equivalent to the similar indication for use of a legally marketed device, K132261 DISCOVERY XR656 WITH VOLUMERAD (Digital Tomosynthesis) manufactured by GE Medical Systems, LLC.
#### 8) Device Description
The Shimadzu SONIALVISION G4 is a universal X-ray RF system offering radiographic, fluoroscopic, angiographic and tomosynthesis techniques. Tomosynthesis technique is enabled by additional software option to the digital radiography system of the SONIALVISION G4. The Shimadzu SONIALVISION G4 is floor mounted table, and the system can be configured with Digital Radiography System, X-ray High Voltage Generator, Collimator and X-ray Tube.
#### 9) Intended Use
The SONIALVISION G4 is intended to be used for the fluoroscopy and radiography diagnosis. This system is operated and used by the physicians and/or X-ray technologists in the hospitals. The system is used for total patient population. This system is used for radiographic, fluoroscopic, angiographic and pediatric examinations.
#### 10) Indications for Use
The equipment is intended to be used for the fluoroscopy/radiography diagnosis in hospital.
The equipment must only be operated by qualified personnel, such as radiography technicians or those with equivalent qualifications.
The equipment is used for total patient population.
The equipment is NOT intended to be used for Mammography screening.
The equipment is NOT intended to be used for interventional procedure.
The equipment is used for radiographic, fluoroscopic, angiographic and pediatric examinations. Stored images in the equipment can be used for re-monitoring, image processing, storing to optical media (CD/DVD), and sending to DICOM server.
The Tomosynthesis option for the SONIALVISION G4 is intended to generate tomographic images of human anatomy including chest or extremities. Tomosynthesis technique is used to produce a specific cross-sectional plane of the body by reconstruction of tomographic acquisition. The device is not intended for mammographic applications.
### 11) Comparison of Technological Characteristics with the predicate devices
At a high level, new device and its primary predicate device are based on the following same technological elements:
- Energy emission to the patient - X-ray
- Power requirement, Environmental requirement
- Mechanism to generate X-ray,
- Mechanism to acquire, process and store image data
- Use of the same hardware components, user interfaces
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## SECTION V:
### 510(k) Summary
The following technological differences exist between new and primary predicate device.
- Use of software processing for tomosynthesis ●
- . Use of mechanism to acquire tomographic plane
- Clinical images resulted by tomosynthesis technique ●
#### 12) Performance Data
The following performance data were provided in support of the substantial equivalence determination.
#### Electromagnetic compatibility
Both new device and primary predicate device are in conformity with IEC60601-1-2. The difference is edition of the standard. Difference of edition of the standard does not affect safety and effectiveness.
#### Materials and Bio-compatibility testing
As there are no additional hardware components, there are no differences on materials and bio-compatibility between new device and primary predicate device. Both new device and primary predicate device are in conformity with ISO 10993-1:2009.
#### Electrical, Mechanical, Chemical and Thermal safety
As to these safeties, new device and primary predicate device are substantially equivalent by their conformed standards.
### Software Verification and Validation Testing
Software verification and validation testing were conducted as recommended by FDA's Guidance for Industry and FDA Staff, "Guidance for the Content of Premarket Submissions for Software Contained in Medical Devices." We identified the level of concern associated with new device and provided documentation consistent with that level. Based on our risk analysis of software, the difference does not affect its safety and effectiveness.
#### Non-clinical Performance Testing
For the tomosynthesis technique which is different from primary predicate device, we performed non-clinical performance testing between new device and secondary predicate device in accordance with the FDA Guidance "Guidance for the Submission of 510(k)'s for Solid State X-ray Imaging (SSXI) Devices". Accuracy of tomographic acquisition of two devices was measured, and phantom images of two devices were compared. As a result, we estimated that new device has equivalent performance to acquire images by tomosynthesis technique. The results of non-clinical performance testing demonstrate substantial equivalence to secondary predicate device in aspect of tomosynthesis capability.
#### Clinical Performance Testing
Per SSXI guidance, concurrence clinical study was executed by an U.S. certified Radiologist. Between new device and secondary predicate device, multiple clinical images taken by tomosynthesis technique were compared on several different anatomies. From the result of
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#### SECTION V:
### 510(k) Summary
overall clinical review, we concluded that new device is substantially equivalent to the secondary predicate device in aspect of its diagnostic capability.
#### Radiation safety
New device and primary predicate device is substantially equivalent by their conformities of CFR and IEC60601-1-3. Also, for additional "tomosynthesis technique", non-clinical bench testing as well as clinical performance testing were executed with associated dose information of each image. The result of Performance Data demonstrates substantial equivalence to the secondary predicate device.
#### 13) Conclusion
The non-clinical data support the safety of the device and the hardware and software verification and validation demonstrate that new device should perform as intended in the specified use of tomosynthesis technique. Based on our risk analysis, the bench testing as well as clinical testing, the differences do not affect its clinical safety or effectiveness.
From the result of nonclinical and clinical testing discussed above, it is our conclusion that,
- -New device is identical to the commercially available primary predicate device the X-RAY TV SYSTEM SONIALVISION G4, which was cleared on March 28, 2014 with K131075 except its tomosynthesis technique.
- Additional indication for use, tomosynthesis technique of new device is substantially equivalent to the commercially available secondary predicate device, Discovery XR656 with VolmeRad (digital tomosynthesis), which was cleared on November 18, 2013 with K132261. Additional indication for use does not introduce any new safety and effectiveness concern.
- Therefore, new device is as safe, as effective, and performs as well as or better than the predicate device(s).
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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.