AMX4-50 AND AMX4-31 MOBILE DIGITAL DIAGNOSTIC RADIOGRAPHIC SYSTEMS
Applicant
Virtual Imaging
Product Code
IZL · Radiology
Decision Date
Dec 26, 2006
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 892.1720
Device Class
Class 2
Attributes
Pediatric
Indications for Use
Intended for use by a qualified/trained doctor or technician on both adult and pediatric subjects for taking diagnostic radiographic exposures of the skull, spinal column, chest, abdomen, extremities, and other body parts. Applications can be performed with the patient sitting, standing, or lying in the prone or supine position.
Device Story
Mobile digital radiographic system; upgrade/retrofit for GE AMX-4 Plus. Replaces film cassettes with Canon CXDI-50G or CXDI-31 digital detectors. System includes original AMX-4 mobile base, new batteries, DC-to-AC power supply, and integrated control unit for x-ray exposure and digital image acquisition. Operated by physicians or technicians in clinical settings. Provides digital radiographic images for diagnostic evaluation. Benefits include transition from analog film to digital imaging workflow, enabling faster image availability and digital storage.
Clinical Evidence
Bench testing only. No clinical data provided.
Technological Characteristics
Mobile x-ray system; utilizes Canon CXDI-50G or CXDI-31 digital detectors. Resolution: 160x160 micron pixel pitch (CXDI-50G) or 100x100 micron (CXDI-31); 4,096 gray scale contrast. Power: Battery-operated with AC charging. Software-driven touch panel LCD interface for digital acquisition. Complies with 21 CFR Part 1020 and UL/IEC electrical safety standards.
Indications for Use
Indicated for adult and pediatric patients requiring diagnostic radiographic imaging of the skull, spine, chest, abdomen, and extremities. Can be used with patients in sitting, standing, prone, or supine positions.
Regulatory Classification
Identification
A mobile x-ray system is a transportable device system intended to be used to generate and control x-ray for diagnostic procedures. This generic type of device may include signal analysis and display equipment, patient and equipment supports, component parts, and accessories.
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K063262
Image /page/0/Picture/1 description: The image shows the text "EXHIBIT 2 510(k) Summary" at the top. Below the text is a logo for "VIRTUAL IMAGING". The logo consists of a stylized letter V on the left and the words "VIRTUAL IMAGING" in block letters on the right. The text is centered and the logo is aligned with the text.
720 S. Powerline Road S Deerfield Beach, FL 33442 954-428-6191 (Office) 954-428-6195 (Fax) October 18, 2006 Contact: Chris Duca, COO DEC 26 2006
1. Identification of the Device: Proprietary-Trade Name: AMX4-50 and AMX4-31 Mobile Digital Diaganatic Radiographic Systems (Also offered as an upgrade kit to owners of the GE AX-4 Plus Mobile X-Ray System: AMX4-550 Retrofit Kit) 、, Classification Names System, x-ray, mobile Product Code Product Code IZL Common/Usual Name: Mobile X-Ray System
- 2. Equivalent legally marketed device: GE AMX-4 Plus Mobile X-ray System, K021016 and CANON CXDI-50G Digital Radiography, K031447. The remanufactured device COMBINES these two units with an integrated control. A similar unit in the market would be the Sedecal Mobile X-Ray Units with Digital Detector, K043002.
- 3. Indications for Use (intended use) Intended for use by a qualified/trained doctor or technician on both adult and pediatric subjects for taking diagnostic radiographic exposures of the shull, spinal column, chest, abdomen, extremities, and other body parts. Applications can be performed with the patient sitting, standing, or lying in the prone or supine position.
- 4. Description of the Device: The AMX4-50 is an AMX portable that has been upgraded to accommodate the Canon 50G digital imaging system. The AMX4 will operate in the same manner as before except that, instead of using film cassettes, it will be making digital images with the Canon sensor. The original AMX system is disassembled and reconstructed with new batteries, a DC to AC power supply for the Canon digital imaging system, and enclosure sheet metal to accommodate the modifications. An added control coordinates x-ray exposure and digital image acquisition. The AMX4-50 asses the Canon CXDI-50G and the AMX4-31 uses the Canon CXDI-31 portable detector.
- 5. Safety and Effectiveness, comparison to predicate device. The results of bench and user testing indicates that the new device is as safe and effective as the predicate devices.
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| Characteristic | GE AMX-4 Plus<br>Mobile X-ray<br>System, K021016 | Sedecal Mobile<br>Ray Units with<br>Digital Detector,<br>K043002. | AMX4-50 and<br>AMX4-31 Mobile<br>Digital Diagnostic<br>Radiographic<br>Systems and<br>AMX4-50 Retrofit<br>Kit |
|--------------------------|--------------------------------------------------|-----------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------|
| Intended Use: | Mobile diagnostic<br>x-ray | SAME | SAME |
| Power source | Batteries charged by<br>AC line | SAME | SAME |
| Image acquisition | X-ray film | Canon Digital Panel<br>CXDI-50G | Digital Panel<br>CXDI-50G or the<br>CXDI-31 portable<br>detector (K003689/<br>K023750) |
| User Interface | | Software Driven<br>Touch Panel LCD | Software Driven<br>Touch Panel LCD for<br>Digital Panel,<br>Generator controls are<br>NOT modified |
| Digital Resolution | N/A | 160 x 160 microns<br>pixel pitch, with<br>approximately 6<br>million pixels and<br>4,096 gray scale<br>contrast | SAME (Combined<br>device) or 100 x 100<br>microns for AMX4-<br>31 with 6.5 million<br>pixels. 4,096 gray<br>scale contrast |
| Available panel<br>sizes | N/A | CXDI-50G<br>35 x 43 cm | CXDI-50G<br>35 x 43 cm<br>CXDI-31<br>22.6 x 28.8cm |
| Performance<br>Standard | Complies with 21<br>CFR Part 1020 | SAME | SAME |
| Electrical safety | UL/IEC | SAME | SAME |
## 6. Substantial Equivalence Chart, "AMX4-50 and AMS
## 7. Conclusion
After analyzing both bench and user testing data, it is the conclusion of Virtual Imaging that the AMX4-50 and AMX4-31 System is as safe and effective as the predicate devices, has few technological differences, and has no new indications for use, thus rendering it substantially equivalent to the predicate device.
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Image /page/2/Picture/0 description: The image shows a circular seal with the words "DEPARTMENT OF HEALTH & HUM." written around the top half of the circle. Inside the circle is a symbol that consists of three curved lines that appear to be stacked on top of each other. The seal is black and white and has a simple design.
Food and Drug Administration 9200 Corporate Blvd. Rockville MD 20850
Virtual Imaging, Inc. % Mr. Daniel Kamm Principal Consultant Kamm & Associates PO Box 7007 DEERFIELD IL 60015
DEC 26 2006
Re: K063262
Trade/Device Name: AMX4-50 and AMX4-31 Mobile Digital Diagnostic Radiographic System (Also offered as an upgrade kit to owners of the GE AMX-4 Plus Mobile X-Ray
System: AMX4-50 Retrofit Kit)
Regulation Number: 21 CFR 892.1720 Regulation Name: Mobile x-ray system Regulatory Class: II Product Code: IZL Dated: October 26, 2006 Received: October 31, 2006
Dear Mr. Kamm:
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 commence prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devoces that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Nossmatic Act (Act) that do not require approval of a premarket approval application (PMA), You may cossn. 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.
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 affectively 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.
Image /page/2/Picture/12 description: The image is a black and white circular logo. The logo contains the text "1906-2006" at the top, "PA" in the center, and "Centennial" at the bottom. There are three stars below the word "Centennial". The logo is surrounded by a dotted border.
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.xxx | (Gastroenterology/Renal/Urology) | 240-276-0115 |
|----------------|----------------------------------|--------------|
| 21 CFR 884.xxx | (Obstetrics/Gynecology) | 240-276-0115 |
| 21 CFR 894.xxx | (Radiology) | 240-276-0120 |
| Other | | 240-276-0100 |
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 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 (240) 276-3150
or at its Internet address http://www.fda.gov/cdrlvindustry/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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## Indications for Use
510(k) Number (if known): K063262
Device Name: AMX4-50 and AMX4-31 Mobile Digital Diagnostic Radiographic Systems (Also offered as an upgrade kit to owners of the GE AMX-4 Plus Mobile X-Ray System: AMX4-50 Retrofit Kit)
Indications For Use:
Intended for use by a qualified/trained doctor or technician on both adult and pediatric subjects for taking diagnostic radiographic exposures of the skull, spinal column, chest, abdomen, extremities, and other body parts. Applications can be performed with the patient sitting, standing, or lying in the prone or supine position.
Prescription Use X (Part 21 CFR 801 Subpart D) AND/OR
Over-The-Counter Use (21 CFR 807 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Daniel A. Syzmm
(Division Sign-Off)
Division of Reproductive, Abdominal, and Radiological Devices 510(k) Number
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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.
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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).
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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.
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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.
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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.
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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.
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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.
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A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
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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.