(28 days)
Cocoon is a portable X-ray System indicated for taking diagnostic dental x-rays for both pediatric and adult patients using intraoral film or digital sensors.
The Cocoon device is intended for use in dental radiographic examination and diagnosis of the teeth, jaw, and oral structure for both pediatric and adult patients.
Cocoon Portable X-ray System from Dexcowin Co., Ltd., of Seoul, Korea is a handheld x-ray device. The technology of this device was originally developed in Korea more than a decade ago and global production is still concentrated in that country.
The subject device is designed for dental radiographic examination and diagnosis of diseases of the teeth, jaw, and oral structure by exposing an x-ray image receptor to ionizing radiation. The x-ray source, a tube, is located inside the handheld device. All three conventional types of intraoral receptors can be used with this device-analog x-ray film, digital phosphorous plates, and digital x-ray sensors.
The provided document is a 510(k) premarket notification for the "Cocoon Portable Handheld X-ray System." It demonstrates the device's substantial equivalence to a predicate device, focusing on technical specifications and conformity to various international and FDA standards for safety and performance. However, this document does not contain information about clinical study results, expert consensus, ground truth establishment, sample sizes for training or testing, or AI/human reader performance data.
The document details the device's technological characteristics, adherence to electrical safety, EMC, software validation, biocompatibility, usability, and risk assessment standards. It states that "All tests were performed in accordance with ISO standards and recognized by FDA" and that "Clinical Comparison" was performed, but no specifics of this comparison, such as acceptance criteria, sample size, or outcomes, are provided.
Therefore, many of the requested details about acceptance criteria, study design, and performance metrics cannot be extracted from this document because it is a submission focused on demonstrating substantial equivalence based on technical and safety specifications rather than a comparative clinical performance study.
Based on the provided text, I can only address a limited number of your questions:
1. A table of acceptance criteria and the reported device performance:
The document does not explicitly present a table of acceptance criteria with reported device performance in the context of clinical efficacy or diagnostic accuracy. Instead, it demonstrates acceptance primarily through conformity to established safety and performance standards for X-ray devices. The "performance" discussed relates to meeting specific technical specifications and safety requirements.
| Acceptance Criteria (Implied from Standards & Comparision) | Reported Device Performance (from document) |
|---|---|
| Electrical Safety (IEC 60601-1:2005 / AMD1:2012) | Conforms |
| Electromagnetic Compatibility (EMC) (IEC 60601-1-2:2007) | Conforms |
| Radiation Protection (IEC 60601-1-3:2008 & 21 CFR 1020.30, 1020.31) | Conforms |
| Usability (IEC 60601-1-6:2010 / AMD1:2013, IEC 62366-1:2015) | Conforms |
| Software Validation (IEC62304:2015) | Conforms |
| Biocompatibility (ISO 10993-1:2009) | Conforms |
| Risk Management (EN ISO 14971:2012) | Conforms |
| Quality Management System (EN ISO 13485:2012) | Conforms |
| Technical Specifications (Comparison to Predicate) | |
| - Tube Voltage | 70kVp fixed (for DX-7017 and DX-7020) |
| - Tube Current | 1.7mA (DX-7017) / 2.0mA (DX-7020) |
| - Exposure Time | 0.05~1.00 seconds in 0.001 increments |
| - Timer Accuracy | ±(10% + 1ms) |
| - Source to Skin Distance | 180mm |
| - Cone Diameter | 58mm |
2. Sample size used for the test set and the data provenance:
- Sample Size for Test Set: Not specified. The document primarily references conformity to standards and technical comparisons. No specific "test set" in the context of clinical performance data for diagnostic accuracy is mentioned.
- Data Provenance: Not explicitly stated for specific test data used to support substantial equivalence beyond the manufacturer's internal testing and third-party electrical testing (Met Laboratories, Inc.). The technology's original development is noted as "more than a decade ago" and "global production is still concentrated" in "Korea."
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts:
This information is not available in the provided document. The submission focuses on the technical and safety aspects of the device, not a diagnostic performance study requiring expert ground truth establishment.
4. Adjudication method (e.g. 2+1, 3+1, none) for the test set:
This information is not available in the provided document.
5. If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance:
This information is not available in the provided document. The device is a "Portable Handheld X-ray System," not an AI-powered diagnostic tool, so such a study would not be applicable within the scope of this 510(k) submission.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done:
This information is not available in the provided document. The device is a hardware X-ray system, not an algorithm.
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc.):
This information is not available in the provided document.
8. The sample size for the training set:
This information is not applicable as the device itself is an X-ray imaging system, not an AI model that requires a training set.
9. How the ground truth for the training set was established:
This information is not applicable as the device itself is an X-ray imaging system, not an AI model that requires a training set and ground truth establishment in that context.
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Image /page/0/Picture/1 description: The image shows the seal of the Department of Health & Human Services - USA. The seal is circular, with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged around the perimeter. In the center of the seal is a stylized image of three human profiles facing to the right, stacked on top of each other. The profiles are connected by a flowing line that resembles a ribbon or wave.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
October 26, 2017
Dexcowin Co., Ltd. % Ms. Joyce St. Germain Regulatory Department Manager 100 East Granada Blvd., Suite 219 ORMOND BEACH FL 32176
Re: K173046
Trade/Device Name: Cocoon Portable Handheld X-ray System Regulation Number: 21 CFR 872.1800 Regulation Name: Extraoral source x-ray system Regulatory Class: II Product Code: MUH Dated: September 26, 2017 Received: September 28, 2017
Dear Ms. St. Germain:
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.
Michael D. O'Hara For
Robert Ochs, Ph.D. 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) K173046
Device Name
Cocoon Portable Handheld X-ray system
Indications for Use (Describe)
Cocoon is a portable X-ray System indicated for taking diagnostic dental x-rays for both pediatric and adult patients using intraoral film or digital sensors.
| 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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Image /page/3/Picture/0 description: The image shows a stylized drawing of an eagle's head and wing. The eagle's head is facing to the right, and its beak is slightly open. The wing is spread out behind the head, and it has five feathers. The drawing is done in black and white, and the lines are clean and simple.
510k FDA Consulting
Medical Device Clearance
100 East Granada Blvd., Suite 219
Ormond Beach, FL 32176
386-506-8711
Special 510(k) Summary / K173046
Submitter/Applicant
Dexcowin Co., Ltd. #905, 2, Gasan digital 1-ro, GeumCheon-Gu Seoul, Korea 08591
| Phone: | 82-2-2027-2880 |
|---|---|
| Fax: | 82-2-2027-2884 |
| Contact: | Ryu Seung-Bum (sbryu@dexcowin.com)Date Prepared |
September 26, 2017
Preparer/Consultant
Denterprise International, Inc. 100 East Granada Blvd., Suite 219 Ormond Beach, FL 32176
Phone: 386-506-8711 Fax: 386-672-4402 Primary Contact: Joyce St. Germain, Regulatory Dept. Mgr. (joyce@510kfda.com) Secondary Contacts: Claude Berthoin, President (claude@510kfda.com).
Device Classification
Trade Name: Common Name: Regulation Name: Regulation Number: Primary Product Code Regulatory Class: 510k Review Panel:
Cocoon Portable Handheld X-ray system Portable x-ray System Extraoral Source X-ray System 21 CFR 872.1800 MUH II Dental
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Predicate Device
The following predicate was cleared as a Special 510k to the original (K083532) reference predicate.
The following predicate is a legally marketed, post-amendment device:
| 510(k) Number: | K133007 |
|---|---|
| Date Cleared: | April 24, 2014 |
| Device Name: | DX-3000 Portable X-ray System |
| Common Name: | Portable X-ray System |
| Regulation Name: | Extraoral Source X-ray System |
| Regulation Number: | 21 CFR 872.1800 |
| Primary Product Code: | MUH |
| Regulatory Class: | II |
| 510k Review Panel: | Dental |
Reference Predicate
| 510(k) Number: | K083532 |
|---|---|
| Clearance Date: | March 10, 2009 |
| Device Name: | ADX4000-L, DX3000-L |
| Common Name: | Portable X-ray System |
| Regulation Name: | Extraoral source X-ray System |
| Regulation Number: | 21 CFR 872.1800 |
| Regulatory Class: | II |
| Primary Product Code: | MUH |
Indications for Use
Cocoon is a portable X-ray System indicated for taking diagnostic dental x-rays for both pediatric and adult patients using intraoral film or digital sensors.
Intended Use
The Cocoon device is intended for use in dental radiographic examination and diagnosis of the teeth, jaw, and oral structure for both pediatric and adult patients.
Device Description
Cocoon Portable X-ray System from Dexcowin Co., Ltd., of Seoul, Korea is a handheld x-ray device. The technology of this device was originally developed in Korea more than a decade ago and global production is still concentrated in that country.
The subject device is designed for dental radiographic examination and diagnosis
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of diseases of the teeth, jaw, and oral structure by exposing an x-ray image receptor to ionizing radiation. The x-ray source, a tube, is located inside the handheld device. All three conventional types of intraoral receptors can be used with this device-analog x-ray film, digital phosphorous plates, and digital x-ray sensors.
Comparison of Technological Characteristics with Predicate
The following table compares technological and other characteristics of the subject and predicate device.
Table 5 -- Technological Comparison Subject Models: DX-7017 and DX-7020
| Feature | Cocoon(Subject Device)DX-7017 / DX-7020K173046 | Dexcowin DX3000(Predicate K133007) | Dexcowin DX3000-L(Predicate K083532) |
|---|---|---|---|
| IntendedUse | Indicated for takingdiagnostic dental x-raysfor both pediatric andadult patients usingintraoral film or digitalsensors. | Indicated for takingdiagnostic dental x-raysfor both pediatric andadult patients usingintraoral film or digitalsensors. | Indicated for takingdiagnostic dental x-raysfor both pediatric andadult patients usingintraoral film or digitalsensors. |
| Mechanical | |||
| Size : Body | 7.6"(H)×5.2"(W)×10.6"(D) | 5.5"(H)×6.5"(W)×3.2"(D) | 5.5"(H)×6.5"(W)×3.2"(D) |
| Weight | 5.0 lbs. (without battery) | 4.4 lbs. (withoutbattery ) | 4.4 lbs. (withoutbattery) |
| Source toskindistance | 180mm | 200mm | 200mm |
| Conediameter | 58mm | 55mm | 55mm |
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| Exposureswitch | On tube-head assembly,or at control panel | On tube-head assembly,or at control panel | On tube-head assembly,or at control panel |
|---|---|---|---|
| Tube headmounting | Handheld, or on a tripod | Handheld, or on a tripod | Handheld, or on a tripod |
| Electrical | |||
| EnergySource | Rechargeable 16.8VDC Li-Polymerbattery pack | Rechargeable 16.8VDC Li-Polymer batterypack | Rechargeable 16.8VDC Li-Polymer batterypack |
| ExposureTime | 0.05~1.00 seconds in0.001 increments | 0.05~1.35 seconds in0.005 increments | 0.05~1.35 seconds in0.005 increments |
| TimerAccuracy | ±(10% + 1ms) | ±(10% + 1ms) | ±(10% + 1ms) |
| TubeVoltage | 70kVp fixed forDX-7017 and DX-7020 | 60kVp fixed | 60kVp fixed |
| TubeCurrent | 1.7mA = DX-70172.0mA = DX-7020 | 2mA fixed | 1mA fixed |
The above comparison shows the subject and predicate devices have substantially the same technology characteristics.
The differences of the subject device are shown in blue highlights as compared to the predicate devices. The differences of the subject are due to design changes and the differences have all been tested according to ISO standards and have proven to be as safe and effective as the previous devices. The indications for use and the technological characteristics are the same in these devices and the subject device does not cause any new issues of concern.
All Standard Test Performed for the Subject Device Models: DX-7017 and DX-7020 are listed below:
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Declaration of Conformity
- · Council Directive 93/42/EEC as amended by 2007/47/EC of 14 June 1993 concerning medical devices
- MEDDEV 2.12-1 Rev.8 Guidelines on a medical device vigilance system
| No | Standard | Application |
|---|---|---|
| 1 | EN ISO 13485:2012 | Medical devices - Quality management systems -Requirements regulatory purposes(ISO 13485:2003)EN ISO13485:2003/AC:2007 |
| 2 | EN ISO 14971:2012 | Medical devices - Application of risk management tomedical devices(ISO14971:2012) |
| 3 | IEC 60601-1:2005/AMD1:2012 | Medical electrical equipment - part1: Generalrequirements for basic safety and essentialperformance |
| 4 | IEC 60601-1-2:2007 | Medical electrical equipment - Part1-2:Generalrequirements for basic safety and essentialperformance - Collateral standard: Electromagneticcompatibility - Requirements and tests |
| 5 | IEC 60601-1-3:2008 | Medical electrical equipment - Part1-3: Generalrequirements for basic safety essential performance -Collateral standard: Radiation protection in diagnosticX-ray equipment |
| 6 | IEC 60601-1-6:2010/AMD1:2013 | Medical electrical equipment-part1-6:Generalrequirements for basic safety and essentialperformance-Collateral standard: Usability |
| 7 | IEC 60601-2-28:2010 | Medical electrical equipment-part2-28: Particularrequirements for the basic safety and essentialperformance of X-ray tube assemblies for medicaldiagnosis |
| 8 | IEC 60601-2-65:2012 | Medical electrical equipment-part2-65:Particularrequirements for the basic safety and essentialperformance of dental intra-oral X-ray equipment |
| 9 | IEC 62366-1:2015 | Medical devices-part1: Application of usability |
| engineering to medical devices | ||
| 10 | IEC62304:2015 | Medical device software - software life cycleprocesses. |
| 11 | ISO 14155-1:2010 | Clinical investigation of medical devices for humansubjects |
| 12 | ISO 15223-1:2010 | Medical devices: Symbols to be used with medicaldevices labels, labeling and information to be supplied |
| 13 | EN1041:2008 | Information supplied by the manufacturer with medicaldevices |
| 14 | ISO 10993-1:2009 | Biological evaluation of medical devices-Part1:Evaluation and testing within a risk managementprocess |
| 15 | ISO 17050-1:2010 | Conformity assessment-supplier`s declaration ofconformity - part 1:General requirements |
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Non-Clinical Performance Data
The following performance was completed on the subject device in support of the substantial equivalence determination.
- Electrical Safety and EMC 0
- Specifications of Raw Material 0
- Software Validation 0
- Biocompatibility 0
- Usability 0
- Clinical Comparison O
- Risk Assessment O
- All tests were performed in accordance with ISO standards and recognized by 0 FDA.
- None of the standards was adapted for application to the device under review. 0
- There were no requirements of any standard that were not applicable to the 0 device.
- No deviations from the standards were applied. 0
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- No differences exist between the tested device and the device to be marketed. 0
- Conformity with all standards was determined by the device manufacturer, O Dexcowin Co., Ltd., Korea.
- Electrical test performed by Met Laboratories, Inc. O
Specific Guidance Document
There is a FDA Specific Guidance Document associated with the device: Radiation Safety Consideration for X-ray Equipment Designed for Hand-Held Use. This submission utilized this guidance to develop this device to ensure the safety of this device for both the operators and the patients.
Labels
The labels on the device show that this device conforms to the following:
21 CFR 1020 Subchapter J: Performance Standards for Ionizing Radiation Emitting Products,
21 CFR 1020.30: Diagnostic x-ray systems and their major components,
21 CFR 1020.31: Radiographic Equipment
Conclusion
The Cocoon Portable X-ray System shows substantial equivalence to its original predicate and modified predicate devices. All differences were evaluated according to the tests and deemed not to raise new issues of safety or effectiveness. The modifications did not affect the device's intended use or alter the device's fundamental scientific technology. This modified subject device is at least as safe and effective as the predicate devices.
§ 872.1800 Extraoral source x-ray system.
(a)
Identification. An extraoral source x-ray system is an AC-powered device that produces x-rays and is intended for dental radiographic examination and diagnosis of diseases of the teeth, jaw, and oral structures. The x-ray source (a tube) is located outside the mouth. This generic type of device may include patient and equipment supports and component parts.(b)
Classification. Class II.