K142794 · Everyway Medical Instruments Co.,Ltd · NFO · Jun 2, 2015 · Neurology
Device Facts
Record ID
K142794
Device Name
Everyway Facial MENS
Applicant
Everyway Medical Instruments Co.,Ltd
Product Code
NFO · Neurology
Decision Date
Jun 2, 2015
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 882.5890
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The Everyway Facial MENS, model: MT-200 is intended for facial stimulation and indicated for over-the-counter cosmetic use.
Device Story
Single-channel transcutaneous electrical nerve stimulator (TENS) for facial stimulation; OTC cosmetic use. Device consists of thermoplastic resin housing with two fixed stainless steel hemispherical probes. Powered by 9V battery. User operates via intensity control knob; green LED indicates operation. Probes glide over skin to deliver low-level electrical impulses; requires conductive derma gel. Device alternates positive/negative polarity between probes. Output amplitude adjustable 0-400 microamp (up to 3mA load). Provides personalized comfort levels for facial stimulation. Safety features include automatic overload, no-load trip, and automatic shut-off.
Clinical Evidence
No clinical data; bench testing only. Safety and performance verified through compliance with IEC 60601-1, IEC 60601-1-2, and IEC 60601-2-10 standards, plus software verification per FDA guidance.
Indicated for over-the-counter cosmetic facial stimulation.
Regulatory Classification
Identification
A transcutaneous electrical nerve stimulator for pain relief is a device used to apply an electrical current to electrodes on a patient's skin to treat pain.
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Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
June 2, 2015
Everyway Medical Instruments Co., Ltd. Robert Tu 3FL., No 5, Lane 155, Section 3 Peishen Rd. Shen Keng Hsiang, Taipei Hsien Taiwan, 222, ROC
Re: K142794
Trade/Device Name: Everyway Facial MENS, model MT-200 Regulation Number: 21 CFR 882.5890 Regulation Name: Transcutaneous electrical nerve stimulator for pain relief Regulatory Class: Class II Product Code: NFO Dated: May 1, 2015 Received: May 4, 2015
Dear Mr. Tu:
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
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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 (OS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
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" (21CFR 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.
for
Sincerely yours.
Felipe Aquel - S
Carlos L. Peña, PhD, MS Director Division of Neurological and Physical Medicine Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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### Indications for Use
510(k) Number (if known) K142794
#### Device Name
Everyway Facial MENS, model: MT-200
Indications for Use (Describe)
The Everyway Facial MENS, model: MT-200 is intended for facial stimulation and indicated for over-the-counter cosmetic use.
Type of Use (Select one or both, as applicable)
Prescription Use (Part 21 CFR 801 Subpart D)
|X | Over-The-Counter Use (21 CFR 801 Subpart C)
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3F1., No. 5, Lane 155, Sec. 3,Peishen Rd, Shen Keng Hsiang, Taipei Hsien, Taiwan,
## 510(K) SUMMARY
This summary of 510(k) safety and effectiveness information is being prepared in accordance with the requirements of SMDA 1990 and 21 CFR 807.92 at June 15, 2011.
The assigned 510(k) number is: K142794 .
- 1. Submitter's Identifications:
Establishment: EVERYWAY MEDICAL INSTRUMENT CO., LTD. Address: 3Fl., No. 5, Lane 155, Sec. 3, Peishen Rd., Shenkeng Hsiang, Taipei Hsien 222, Taiwan Registration Number: 9616877 Operations: Manufacturer
Owner/Operator:EVERYWAY MEDICAL INSTRUMENT CO., LTD. Address : 3Fl., No. 5, Lane 155, Sec. 3, Peishen Rd., Shenkeng Hsiang, Taipei Hsien 222, Taiwan Contact Person: Robert Tu Phone : 886-2-2662-0038 Fax No: 886-2-2664-5566 e-mail : tu922@ms35.hinet.net
- 2. Name of the Device: Everyway Facial MENS/ Model: MT-200.
- 3. Information of the 510(k) Cleared Device (Predicate Device): K072260: NuFace® Facial Toning Device.
- 4. Classification Information: Trade/Device Name: Everyway Facial MENS/ Model: MT-200. Requlation Number: 21 CFR 882.5890 Classification Name: Stimulator, Nerve, Transcutaneous For Pain Relief. Regulatory Class: II Product Code: NFO
- 5. Device Description:
The Everyway Facial MENS, model MT-200 is a single channel transcutaneous electrical nerve stimulator intended for facial stimulation by applying an electrical current to electrodes, which are attached on the user's skin.
The device measures 95mm(H)x23.5mm (T). Its outer housing is made of injection molded thermoplastic resin with the output contact probes consist of chrome-plated spheres. The device is powered by a 9-Volt battery to generate microcurrent that is discharged through the two fixed smooth spherical probes.
The device is operated in such a way that turn on the intensity control knob and adjust the intended intensity or turn off the device during operation through the same control knob. While device is turned on for operation, a green LED will then illuminate indicating the device is in operation condition. User then follow the instruction for use to get appropriate stimulation treatment. The two probes gently glide over the skin to deliver low-level electrical impulses to strategic location on the face as his intension.
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3F1., No. 5, Lane 155, Sec. 3,Peishen Rd, Shen Keng Hsiang, Taipei Hsien, Taiwan,
The probes of Evweyway Facial MENS, model MT-200 are designed for optimal contact with the face. The MT-200 device continually alternates the positive and negative polarity between the two output spherical probes through the internal control circuit of the device and the pulse rate set by user. The MT-200 also allows user to adjust setting output amplitude from 0 to 400 microamp for a personalized comfort level. The MT-200 device requires the use of conductive derma gel provided together with the device. With the combination of the main device parts as above mentioned, the device can be used as recommended in manual for facial stimulation and indicated for over-the-counter cosmetic use.
#### 6. Intended Use:
The Everyway Facial MENS, model: MT-200 is intended for facial stimulation and indicated for over-the-counter cosmetic use.
#### 7. Comparison to the 510(k) Cleared Device (Predicate Device):
| The following features are completely identical among the predicate device and our device | | |
|-------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------|
| Features | 510(K) Proposed Model | New Model |
| Model Name | NuFaceR Facial Toning Device | Everyway Facial MENS, model MT-200 |
| 510(K) No. | K072260 | K142794 |
| Prescription or OTC | OTC | OTC |
| FDA product code | NFO | NFO |
| Indication for Use | intended for facial stimulation and indicated<br>for over-the-counter cosmetic use. | intended for facial stimulation and indicated<br>for over-the-counter cosmetic use. |
| Electrode Used | Dual contact probes consist of<br>chrome-plated spheres with diameter 30<br>mm.<br>Note: Surface is 28.3cm²/ Per contact<br>probe | Dual contact probes consist of stainless<br>steel hemispheres with diameter 25mm.<br>Note: Surface is 9.8cm²/ Per contact<br>probe |
#### 8. Significant output characteristics comparison table:
| Parameter | | Predicate Device | New Device |
|-------------------------------------------------------------------------------------------------|--------------------------------|------------------------------|-------------------------------|
| 510(K) Number | | K072260 | K142794 |
| Device Name and Model | | NuFaceR Facial Toning Device | MT-200<br>Facial MENS |
| Manufacturer | | Carol Cole | Everyway |
| Power Source(s) | | 9 Vx1 | 9 Vx1 |
| - Method of Line current Isolation | | Type BF | Type BF |
| - Patient Leakage Current | | --- | --- |
| - Normal condition (uA) | | Under 0.1 | Under 0.1 |
| - single Fault condition (uA) | | Under 0.5 | Under 0.5 |
| Average DC current through electrodes when<br>device is on but no pulses are being applied (uA) | | Not applicable | Not applicable |
| Number of Output Modes | | 1 (8~10Hz) | 3 (8Hz, 9Hz, 10Hz) |
| Number of Output<br>Channels: | Synchronous or<br>Alternating? | Alternating | Alternating |
| | Method of Channel<br>Isolation | Output Coil | Output Coil |
| Regulated Current or Regulated Voltage? | | 0-400uA | 0-3mA (load 4kΩ) |
| Software/Firmware/Microprocessor control? | | Yes | Yes |
| Automatic Overload Trip? | | Yes | Yes |
| Automatic No-Load Trip? | | Yes | Yes |
| Automatic Shut Off? | | Yes | Yes |
| User Override control? | | Yes | Yes |
| Indicator Display: | On/Off Status? | Yes | Yes |
| | Low Battery? | Yes | Yes |
| | Voltage/Current<br>Level? | Yes | Yes |
| Timer Range (Minutes) | | Continuous | 20, 40 minutes and Continuous |
| Compliance with Voluntary Standards? | | IEC 60601-2-10 | IEC 60601-2-10 |
| Compliance with 21 CFR 898? | | Yes | Yes |
| Weight (g) including battery | | 817 g | 115 g |
| Dimensions (mm.) [W x H x D] | | 63.5X177.8X25.4 mm | 65X95X23.5 |
| Housing Materials and construction | | ABS | ABS |
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3F1., No. 5, Lane 155, Sec. 3,Peishen Rd, Shen Keng Hsiang, Taipei Hsien, Taiwan,
### For the device output features, we also provided the comparison for the output characteristics as the following table:
| Parameter | | Predicate Device | New Device |
|-------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------|-----------------------------------------------|---------------------------------------------|
| Mode or Program Name | | NuFace® Facial Toning Device | MT-200<br>Facial MENS |
| Waveform (e.g., pulsed monophasic, biphasic) | | Biphasic | Biphasic |
| Shape (e.g., rectangular, spike, rectified<br>sinusoidal) | | Rectangular | Rectangular |
| Maximum Output Voltage (volts)<br>(+/- 20 %) | | 0.336V @500Ω<br>1.14V @2KΩ<br>5.68V @10KΩ | 1.78V @500Ω<br>6.64V @2KΩ<br>16.2V @10KΩ |
| Maximum Output Current (mA)<br>(+/-_20 %) | | 0.672mA @500Ω<br>0.57mA @2KΩ<br>0.568mA @10KΩ | 3.56mA @500Ω<br>3.32mA @2KΩ<br>1.62mA @10KΩ |
| Duration of primary phase (mSec) | | ~108mS | ~99-125mS (Burst) |
| Pulse Duration (mSec) | | ~54mS | ~49-63mS |
| Frequency (Hz) [or Rate (pps)] | | 8~10Hz | 8Hz, 9Hz, 10Hz |
| For<br>multiphasic<br>waveforms<br>only: | Symmetrical phases? | Yes | Yes |
| | Phase Duration (include units),<br>(Stage range, if applicable), | pulsed monophasic<br>Positive:~54mS | pulsed monophasic<br>Positive:~49-63mS |
| | (both phases, if asymmetrical) | Negative: ~54mS | Negative: ~49--63mS |
| Maximum Charge(Microcoulombs per pulse) (if<br>zero, state method of achieving zero net charge<br>for net charge/pulse) | | 2.87uC | 19.64uC (8Hz/500Ω) |
| Maximum Phase Charge(uC) | | 25.86uC | 157.12uC (8Hz/500Ω) |
| Maximum Current Density | | 0.017mA/cm² | 0.26mA/cm² (8Hz/500Ω) |
| Maximum Average Current | | 0.48mA | 2.52mA (8Hz/500Ω) |
| Maximum Average Power Density | | 0.057mW/cm² | 1.33mW/cm² (8Hz/10kΩ) |
| | Pulse per burst | No burst mode | 8~10 pulses |
| Burst Mode | Burst per second | No burst mode | ~1 |
| (i.e. pulse trains) | Burst duration | No burst mode | ~1S |
| | Duty Cycle | No burst mode | 0.25 |
| On Time (Second) | | Constant | Constant |
| Off Time(second) | | Constant | None |
| Additional Features(specify, if applicable) | | NIL | NIL |
- 9. Discussion of Non-Clinical Tests Verification Activities Performed to Determine the Safety and Performance of the devices are as the followings:
Compliance to applicable voluntary standards includes IEC 60601-2-10, as well as IEC 60601-1, and IEC 60601-1-2 requirement. In addition to the compliance of voluntary standards, the software verification has been carried out according to the FDA software guidance.
Discussion: The Compliance to applicable voluntary standards as above mentioned indicates that the new device in this submission used the same standards as that of predicate device. Therefore; we consider that the compliance of standards included in our submission is adequate for the determination of substantial equivalence.
- 10. Discussion of Clinical Test Validation Activities Performed to Determine the Effectiveness of Device are as the followings:
No particular Clinical Test was conducted for Everyway Facial MENS, model MT-200.
- 11. Summary for the technology comparison.
Basically the Everyway Facial MENS, model MT-200 has the similar technological characteristics with the predicate device in the product design, material, energy source type, main program mode and the main output waveform...etc. There exists some difference in the detailed output parameters (mainly in the output intensity and electrode sizes). Through the detailed calculation comparison of stimulation output energy for each operation mode(in particular the output current density and power density), we found the output level in each operation mode for our Everyway Facial MENS, model MT-200 and predicate device are very close and within the acceptable range. So we believe the difference in detailed output parameters does not affect the determination of substantial equivalence.
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3F1., No. 5, Lane 155, Sec. 3,Peishen Rd, Shen Keng Hsiang, Taipei Hsien, Taiwan,
#### 12. Conclusions
The Everyway Facial MENS, model MT-200 has the same intended use and the similar technological characteristics as the cleared devices. Moreover, verification and validation tests contained in this submission demonstrate that the difference in the submitted models could maintain the same safety and effectiveness as that of cleared device.
In the other words, those engineering difference do not: (1) affect the intended use or (2) alter the fundamental scientific technology of the device.
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.