K133108 · Hong Qiangxing (Shenzhen) Electronics Limited · NGX · Aug 5, 2014 · Physical Medicine
Device Facts
Record ID
K133108
Device Name
FIT BELT
Applicant
Hong Qiangxing (Shenzhen) Electronics Limited
Product Code
NGX · Physical Medicine
Decision Date
Aug 5, 2014
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 890.5850
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The SM9065 Fitness Belt is intended for use by healthy persons to apply trans-coetaneous electrical muscle stimulation (EMS) through skin contact electrodes for the following purposes: - Improvement of muscle tone of the muscles in the abdomen, arms and thighs.
Device Story
Battery-operated (2xAAA) two-channel powered muscle stimulator; generates electrical pulses delivered via skin-contact electrodes. User-controlled intensity (10 levels) and frequency (1-50 Hz) via buttons; LCD displays status, mode, intensity, frequency, and time. Used by healthy individuals for muscle conditioning/relaxation. Device comprises main control unit, four fixation belts, and adhesive electrodes. Output parameters (waveform, voltage, pulse width) verified against FDA guidance for powered muscle stimulators. Provides non-invasive muscle stimulation to improve tone and firmness.
Clinical Evidence
Bench testing only. Includes electrical safety (IEC 60601-1, IEC 60601-2-10), EMC (IEC 60601-1-2), biocompatibility (ISO 10993-5, ISO 10993-10), and waveform verification (voltage, pulse width, frequency) under various loads (500, 2k, 10k ohms).
Indicated for improvement of muscle tone, strengthening of muscles, and development of firmer muscles in abdomen, arms, and thighs. Contraindicated for injured or impaired muscles. Not for therapy or treatment of medical conditions/diseases.
Regulatory Classification
Identification
A powered muscle stimulator is an electrically powered device intended for medical purposes that repeatedly contracts muscles by passing electrical currents through electrodes contacting the affected body area.
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Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
August 5, 2014
Hong Qiang Xing (Shenzhen) Electronics Limited Mr. Xu Jianhua, General Manager 4F, JingCheng Building, Xicheng Industrial Zone, Xixiang Road, Bao'an District Shenzhen, Guangdong Province 518102 CHINA
Re: K133108
Trade/Device Name: Fitness Belt, Model SM9065 Regulation Number: 21 CFR 890.5850 Regulation Name: Powered Muscle Stimulator Regulatory Class: Class II Product Code: NGX Dated: June 20, 2014 Received: July 3, 2014
Dear Mr. Xu Jianhua:
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.
Sincerely yours.
# Felipe Aquel -S
Carlos L. Peña, Ph.D., M.S. for 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) K133108
Device Name Fitness Belt, Model SM9065
#### Indications for Use (Describe)
The SM9065 Fitness Belt is indicated for the improvement of muscle tone, for strengthening of muscles and for the development of firmer muscles.
- The big belt is intended for use on the muscles in abdomen.
- The small belt is intended for use on the muscles in arms and thighs areas.
Contraindicated use on injured or otherwise impaired muscles.
Not intended for use in any therapy or for the treatment of any medical conditions or diseases.
Type of Use (Select one or both, as applicable)
- Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
#### PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON A SEPARATE PAGE IF NEEDED.
#### FOR FDA USE ONLY
Concurrence of Center for Devices and Radiological Health (CDRH) (Signature)
# Date: 2014.08.05 10:02:54 -04'00'
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#### Chapter 6. 510(k) Summary
#### Date of the summary prepared: August 4, 2014
### 510(k) Summary
This summary of 510(K) safety and effectiveness information is being submitted in accordance with the requirement of 21 CFR 807.92.
#### 1. Submitter's Information
- 510(k) Owner's Name: Hong Qiang Xing (Shenzhen) Electronics Limited �
- � Address: 4F.,Jingcheng Building, Xicheng Industrial Zone, Xixiang Road, Bao'an District, Shenzhen, Guangdong Province, PRC
- � Phone: 86-755-26423615
- � Fax: 86-755-29915485-818
- Contact Person (including title): Mr. Xu Jianhua (General Manager) �
- � E-mail: info@sunmas.com
#### Subject Device Information 2.
- � Trade Name: Fitness Belt, Model: SM9065
- Powered muscle stimulator Common Name: �
- Stimulator, Muscle, Powered, For muscle conditioning Classification name: �
- Physical Medicine Review Panel: �
- NGX Product Code: �
- 2 Regulation Class: �
- 890.5850 Regulation Number: �
#### 3. Predicate Device Information
| Sponsor | Red Lemon<br>Incorporation | SPORT-ELEC S.A. |
|----------------------|------------------------------------|-----------------------------------------|
| Device Name | X2ABS Dual<br>Channel Fitness Belt | SPORT-ELEC® Body<br>Control System '4M' |
| 510(k) Number | K102295 | K092476 |
| Product Code | NGX | NGX |
| Regulation<br>Number | 890.5850 | 890.5850 |
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Hong Qiang Xing (Shenzhen) Electronics Limited Sponsor: Subject Device: Fitness Belt, Model: SM9065 510(k) submission report (V1.0), Chapter 6 510(k) Summary File No.:
| Regulation Class | 2 | 2 |
|------------------|---|---|
|------------------|---|---|
#### 4. Device Description
SM9065 Fitness Belt is a two channels battery operated muscle stimulation system to achieve the purpose of exercise and relaxation. It is comprised of a main device for signal generation, four belts for fixation, and series electrodes.
The big belt is intended for use on muscles in abdomen. The two small belts are intended for use on muscles in arms and thigh areas.
Power is derived from 2 "AAA" batteries located in a compartment protected by a removable battery cover. The stimulator sends gentle electrical current to targeted muscle group through the electrodes placed on the skin. The parameters of the unit are controlled by the buttons. Its intensity level and frequency level can be adjusted by user.
#### 5. Intended Use & Indication for Use
#### Intended Use:
The SM9065 Fitness Belt is intended for use by healthy persons to apply trans-coetaneous electrical muscle stimulation (EMS) through skin contact electrodes for the following purposes:
- Improvement of muscle tone of the muscles in the abdomen, arms and thighs.
#### Indication for Use:
The SM9065 Fitness Belt is indicated for the improvement of muscle tone, for strengthening of muscles and for the development of firmer muscles.
- The big belt is intended for use on the muscles in abdomen.
- The small belt is intended for use on the muscles in arms and thighs areas.
Contraindicated use on injured or otherwise impaired muscles.
Not intended for use in any therapy or for the treatment of any medical conditions or diseases.
#### 6. Design
SM9065 Fitness Belt is a two channels battery operated muscle stimulation system to achieve the purpose of exercise and relaxation. It is comprised of a main device for signal generation, four belts for fixation, and series electrodes.
The big belt is intended for use on muscles in abdomen. The two small belts are intended for use on muscles in arms and thigh areas.
Power is derived from 2 "AAA" batteries located in a compartment protected by a removable battery cover. The stimulator sends gentle electrical current to targeted muscle group through the electrodes placed on
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the skin. The parameters of the unit are controlled by the buttons. Its intensity level and frequency level can be adjusted by user.
#### 7. Materials
There are four user directly contracting components in the subject device as the following list.
| Component of Device<br>Requiring<br>Biocompatibility | Material of<br>Component | Body Contact<br>Category<br>(ISO 10993-1) | Contact Duration<br>(ISO 10993-1) |
|------------------------------------------------------|------------------------------------------------------|-------------------------------------------|-----------------------------------|
| Belt | Non-woven (synthetic)<br>fabric in 100%<br>polyester | Surface-contacting<br>device: skin | Maximum 45 minutes<br>(< 24hours) |
| Electrode | -- | Surface-contacting<br>device: skin | Maximum 45 minutes<br>(< 24hours) |
The Nature of body contact is surface, skin contact. And the contact duration is less than 24 hours. According to Table 1 - Initial evaluation tests for consideration in ISO 10993-1, the applicable biological effect is:
- � Cytotoxicity
- � Sensitization
- � Irritation or intracutaneous reactivity
The electrodes used in the Fitness Belt (Model: SM9065) are the ones of Top - Rank Adhesive Electrode manufactured by Top - Rank Health Care Equipment Co., Ltd and legally marketed in K132588. So, we do not provide the ISO 10993-5 and ISO 10993-10 test reports on electrodes.
The non-woven fabric of belt used in the Fitness Belt (Model: SM9065) has been tested in accordance with the standards ISO 10993-5, ISO 10993-10.
#### 8. Physical characteristics
| Power Source | 2 x 1.5V AAA batteries |
|---------------------------------|-------------------------------------------------------------------------------|
| Number of channels | Two channels |
| Number of programs | Six modes |
| Output | From 0 V to 90 V |
| Output intensity level | 10 level |
| Frequency | 1~50 Hz |
| Pulse width range | 200µs (Constant) |
| Contraction and relaxation time | Adjustable, due to different modes. (See below "Program Specification Table") |
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| Sponsor: | Hong Qiang Xing (Shenzhen) Electronics Limited |
|-----------------|-----------------------------------------------------------|
| Subject Device: | Fitness Belt, Model: SM9065 |
| File No.: | 510(k) submission report (V1.0), Chapter 6 510(k) Summary |
| Treatment time | 30 minutes (default) |
|------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Indicator display | Indicate the following information: on/off status, modes, intensity &<br>frequency levels and time. |
| Electrode size | Small (one piece): about 56.7 cm²;<br>Big (one piece): about 96.04 cm² |
| Control unit dimension | 106.6 mm (L) x 77.9 mm (W) x 31.3 mm (H) |
| Weight | Control unit (except for batteries): 83 g<br>Big belt: 84 g<br>Small belt: 49 g x 2 piece<br>Electrode pad (big): 22 g<br>Electrode pad (small): 14 g x 6 piece |
| Environment for<br>operation | Temperature: 5~40 °C<br>Humidity: ≤80% RH |
| Environment for<br>storage | Temperature: 0~45 °C<br>Humidity: ≤93% RH |
#### 9. Safety & EMC Test Summary
SM9065 Fitness Belt has been evaluated the safety and EMC testing as following:
- Electrical safety test according to IEC 60601-1 and IEC 60601-2-10 standards �
- � Electromagnetic compatibility test according to IEC 60601-1-2 standard
#### 10. Non-Clinical Test Conclusion
Bench tests have been conducted to verify that the subject device meets all design specifications as predicate devices per the following:
- � Software verification and validation test according to the requirements of the FDA "Guidance for Pre Market Submissions and for Software Contained in Medical Devices"
- � Waveform test report has also been conducted to verify the output parameters (waveform, shape, voltage, pulse width, frequency and so on) and output waveforms (for each mode and each channel under loads of 500, 2k, and 10k ohms) according to the requirements of the FDA "Guidance Document for Powered Muscle Stimulator 510(k)s"
#### 11. Comparison to predicate device and conclusion
The technological characteristics, features, specifications, materials, and intended use of SM9065 Fitness Belt are substantially equivalent to the predicate devices quoted above.
The differences between the subject device and predicate devices do not raise new issues of safety or effectiveness.
| Elements of<br>Comparison | Subject Device | Predicate Device | Remark |
|---------------------------|----------------|------------------|--------|
| | | | |
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| Sponsor: Hong Qiang Xing (Shenzhen) Electronics Limited | |
|-------------------------------------------------------------------------|--|
| Subject Device: Fitness Belt, Model: SM9065 | |
| File No.: 510(k) submission report (V1.0), Chapter 6 510(k) Summary | |
| Elements of<br>Comparison | Subject Device | Predicate Device | Remark |
|--------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Device Name and<br>Model | SM9065 Fitness Belt,<br>Model: SM9065 | X2ABS Dual Channel<br>Fitness Belt | -- |
| 510(k) Number | K133108 | K102295 | -- |
| Manufacturer | Hong Qiang Xing<br>(Shenzhen) Electronics<br>Limited | Leto Enterprises<br>Incorporation | SPORT-ELEC S.A. |
| Intended Use | The SM9065 Fitness<br>Belt is intended for use<br>by healthy persons to<br>apply trans-coetaneous<br>electrical muscle<br>stimulation (EMS)<br>through skin contact<br>electrodes for the<br>following purposes:<br>- Improvement of muscle<br>tone of the muscles in<br>the abdomen, arms and<br>thighs. | The X2ABS Dual Channel<br>Fitness Belt is intended<br>for use by healthy persons<br>to apply trans-coetaneous<br>electrical muscle<br>stimulation (EMS) through<br>skin contact electrodes for<br>the following purposes:<br>- Improvement of muscle<br>tone of the muscles in the<br>abdomen. | The Body Control '4M'<br>is intended for use by<br>healthy persons to<br>apply trans-<br>coetaneous electrical<br>muscle stimulation<br>(EMS) through skin<br>contact electrodes for<br>the following purposes.<br>- Improvement of<br>muscle tone and<br>firmness, for<br>strengthening muscles<br>in arms, abdomen,<br>thighs and buttocks<br>areas.<br>SE<br>Note 1 |
| Basic Unit Characteristics | | | |
| Power Source(s) | 2 x 1.5V AAA batteries | 2 x 1.5V AAA batteries | 3 x 1.5V AA batteries<br>SE<br>Note 2 |
| -Method of Line<br>Current Isolation | Type BF Applied Part | Type BF Applied Part | Type BF Applied Part SE |
| Patient<br>Leakage<br>Current | NC<br>SFC | 0.586μA<br>24.017μA | 3μA<br>8μA<br>SE<br>Note 2 |
| Average DC<br>current through<br>electrodes when<br>device is on but<br>no pulses are<br>being applied | < 0.01μA | < 0.01μA | < 0.01μA<br>SE |
| Number of<br>Output Channels: | Two channels | Two channels | Two channels<br>SE |
| Number of Output<br>Modes | 6 modes | 8 modes | 4 modes<br>SE<br>Note 3 |
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| Sponsor: Hong Qiang Xing (Shenzhen) Electronics Limited | |
|-------------------------------------------------------------------------|--|
| Subject Device: Fitness Belt, Model: SM9065 | |
| File No.: 510(k) submission report (V1.0), Chapter 6 510(k) Summary | |
| Elements of<br>Comparison | Subject Device | Predicate Device | Remark | | |
|--------------------------------------------------|--------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------|--------------|
| Output Intensity<br>Level | 10 steps | 28 steps | -- | SE<br>Note 3 | |
| Synchronous or<br>Alternating? | Alternating | Alternating | -- | SE | |
| Method of<br>Channel Isolation | Voltage Isolation | Voltage Isolation | -- | SE | |
| Regulated Current<br>or Regulated<br>Voltage? | Current Control | Current Control | -- | SE | |
| Software/Firmwar<br>e/Microprocessor<br>Control? | Yes | Yes | Yes | SE | |
| Automatic<br>Overload Trip | Yes | Yes | Yes | SE | |
| Automatic No-<br>Load Trip | Yes | Yes | Yes | SE | |
| Automatic Shut<br>Off | Yes | Yes | Yes | SE | |
| Patient Override<br>Control | Yes | Yes | Yes | SE | |
| Indicator<br>Display | On/Off<br>Status | Yes | Yes | No | SE<br>Note 3 |
| | Low<br>Battery | No | Yes | No | SE<br>Note 3 |
| | Voltage/<br>Current<br>Level | No | No | No | SE |
| Timer Range | Default time is 30<br>minutes | Default time is 10<br>minutes, minimum time is<br>5 minutes | -- | SE<br>Note 3 | |
| LCD display | Indicate the following<br>information: on/off<br>status, modes, intensity<br>& frequency levels and<br>time. | Indicate the following<br>information: Sound on/off,<br>Keylock, Low battery,<br>Channel indication,<br>Intensity level, Mode<br>selection. | Indicate the following<br>information: indicator<br>of power, indicator of<br>electrodes or of<br>contact, indicator of<br>weak and/or defective<br>battery, indicator<br>absence contact belt,<br>indicator of the | SE | |
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| Sponsor: | Hong Qiang Xing (Shenzhen) Electronics Limited |
|-----------------|-----------------------------------------------------------|
| Subject Device: | Fitness Belt, Model: SM9065 |
| File No.: | 510(k) submission report (V1.0), Chapter 6 510(k) Summary |
| Elements of<br>Comparison | Subject Device | Predicate Device | | Remark |
|-------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------|---------------------------------------------------------------------------|--------------|
| | | | programs. | |
| Compliance with<br>Voluntary<br>Standards | Yes<br>Comply with IEC 60601-<br>1 and IEC 60601-2-10,<br>IEC 60601-1-2 | Yes<br>Comply with IEC 60601-1<br>and IEC 60601-2-10, IEC<br>60601-1-2 | Yes<br>Comply with IEC<br>60601-1 and IEC<br>60601-2-10, IEC<br>60601-1-2 | SE |
| Compliance* with<br>21 CFR 898 | Yes | Yes | Yes | SE |
| Weight | Control unit (except for<br>batteries): 83 g<br>Big belt: 84 g<br>Small belt: 49 g x 2<br>piece<br>Electrode pad (big): 22 g<br>Electrode pad (small):<br>14 g x 6 piece | 81.2g | 106g | SE<br>Note 3 |
| Dimensions | 106.6 mm (L) x 77.9 mm<br>(W) x 31.3 mm (H) | 82mm (L) x 62mm (W) x<br>23mm (H) | 69mm (L) x 43mm (W)<br>x 87mm (H) | SE<br>Note 3 |
| Electrode Size | Small: about 56.7 cm2;<br>Big: about 96.04 cm2 | 32 cm2 | Small: 25 cm2<br>Big: 32 cm2 | SE<br>Note 4 |
| Housing Materials<br>and Construction | ABS plastic | ABS plastic | ABS plastic | SE |
| Output Specifications | | | | |
| Waveform | Pulsed monophasic | Pulsed monophasic | Pulsed monophasic | SE |
| Shape | Rectangular | Rectangular | Rectangular | SE |
| Maximum Output<br>Voltage(+/- 10%) | 90V@ 500Ω | 30V@ 500Ω | -- | SE<br>Note 4 |
| | 132V@ 2KΩ | 90V@ 2KΩ | -- | |
| | 170V@ 10KΩ | 150V@ 10KΩ | -- | |
| Maximum Output<br>Current(+/- 10%) | 180mA@ 500Ω | 60mA@ 500Ω | -- | SE<br>Note 4 |
| | 66mA@ 2KΩ | 45mA@ 2KΩ | -- | |
| | 17mA@ 10KΩ | 15mA@10KΩ | -- | |
| Pulse Duration | 200 µs (Constant) | 220 µs (Constant) | 200 µs (Constant) | SE<br>Note 4 |
| Pulse frequency | 1 to 50 Hz | 8.5 to 64 Hz | 50 to 70 Hz | SE<br>Note 4 |
| Net Charge (per<br>pulse) | 16.72µC @ 500Ω | 16.0µC @ 500Ω | -- | SE<br>Note 4 |
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| Sponsor: | Hong Qiang Xing (Shenzhen) Electronics Limited |
|-----------------|-----------------------------------------------------------|
| Subject Device: | Fitness Belt, Model: SM9065 |
| File No.: | 510(k) submission report (V1.0), Chapter 6 510(k) Summary |
| Elements of<br>Comparison | Subject Device | Predicate Device | Remark |
|----------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------|--------------|
| Maximum Phase<br>Charge | 0.12µC@ 500Ω | 13.2μC@ 500Ω | SE<br>Note 4 |
| Maximum<br>Average Current | 0.836µA@ 500Ω | 1.024μΑ@ 500Ω | SE<br>Note 4 |
| Maximum Current<br>Density<br>(r.m.s ) | $I_{AVR} = C F_{Max}$ Where<br>C= Charge, F=<br>Maximum Frequency<br>$I_{AVR} = 16.72µC x 50Hz =$ $836 µA = 0.836 mA$ | $I_{AVR} = C F_{Max}$ Where<br>C= Charge, F= Maximum<br>Frequency<br>$I_{AVR} = 16.0µC x 64Hz =$ $1024μA = 1.024mA$ | SE<br>Note 4 |
| | Max Current Density<br>= IAVR / Square of one<br>electrode<br>= 0.836 mA / 56.7 cm²<br>= 0.015 (mA/cm²) | Max Current Density<br>= IAVR / Square of one<br>electrode<br>= 1.024mA / 32.0cm²<br>= 0.032 (mA/cm²) | |
| | 0.015 mA/cm² @ 500Ω<br>(for the smallest size<br>electrode about 56.7<br>cm²) | 0.032 mA/cm² @ 500Ω<br>(for the smallest size<br>electrode 32.0 cm²) | |
| Maximum<br>Average Power<br>Density | Max Power Density<br>= $I_{AVR}^2$ R / Square of one<br>electrode<br>= (0.836mA) ² x 500Ω /<br>56.7cm²<br>= 6.16 µW/cm²<0.25<br>(W/cm²) | Max Power Density<br>= $I_{AVR}^2$ R / Square of one<br>electrode<br>= (1.024mA) ² x 500Ω /<br>32.0cm²<br>= 16.4 µW/cm²<0.25<br>(W/cm²) | SE<br>Note 4 |
| | 6.16 µW/cm²@ 500Ω | 16.4 µW/cm²@500Ω | |
| Burst Mode | | | |
| a. Pulse per burst | Mode 1 | 310 - 2500 | SE<br>Note 4 |
| | Mode 2 | 10 - 124 | |
| | Mode 3 | 61 - 686 | |
| | Mode 4 | 81 - 820 | |
| | Mode 5 | 81 - 820 | |
| | Mode 6 | 127.5 | |
| b. Bursts per<br>second | Mode 1 | 2 -16 | SE<br>Note 4 |
| | Mode 2 | 0.32 - 4.16 | |
| | Mode 3 | 0.02 - 0.27 | |
| | Mode 4 | 0.018 - 0.22 | |
| | Mode 5 | 0.018 - 0.22 | |
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| Sponsor: | Hong Qiang Xing (Shenzhen) Electronics Limited |
|-----------------|-----------------------------------------------------------|
| Subject Device: | Fitness Belt, Model: SM9065 |
| File No.: | 510(k) submission report (V1.0), Chapter 6 510(k) Summary |
| Elements of<br>Comparison | Subject Device | Predicate Device | Remark | |
|------------------------------------|------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------|--------------|
| | Mode 6 | 39.7 | | |
| c. Burst duration<br>(unit: ms) | Mode 1 | 62 - 500 | -- | SE<br>Note 4 |
| | Mode 2 | 2 - 24.8 | -- | |
| | Mode 3 | 12.2 - 137 | -- | |
| | Mode 4 | 16.2 - 163.8 | -- | |
| | Mode 5 | 16.2 - 163.8 | -- | |
| | Mode 6 | 25.2 | -- | |
| d. Duty Cycle | Mode 1 | 100% | -- | SE<br>Note 4 |
| | Mode 2 | 0.27% -<br>0.30% | -- | |
| | Mode 3 | 0.30% -<br>0.32% | -- | |
| | Mode 4 | 0.25%-<br>0.36% | -- | |
| | Mode 5 | 0.25%-<br>0.36% | -- | |
| | Mode 6 | 100% | -- | |
| ON Time | 1s | 2s | 2.5s | SE<br>Note 4 |
| OFF Time | 1s | 2s | 2.5s | SE<br>Note 4 |
| Contraction and<br>Relaxation time | Adjusted by FRE-UP<br>and FRE-DOWN<br>buttons, due to different<br>frequencies. | Adjustable, due to<br>different modes. | Adjustable, due to<br>different modes. | SE |
| Additional Features | | | | |
| Environment for<br>operating | Temperature: 5 ~ 40° C<br>Humidity: ≤80% RH | Temperature: 5 ~ 40° C<br>Humidity: 20 ~ 65% RH | Temperature: 5 ~ 45° C<br>Humidity: 20 ~ 65% RH | SE<br>Note 2 |
| Environment for<br>storage | Temperature: 0 ~ 45° C<br>Humidity: ≤93% RH | Temperature: 0 ~ 40° C<br>Humidity: 10 ~ 90% RH | Temperature: 0 ~ 45° C<br>Humidity: 10 ~ 90% RH | SE<br>Note 2 |
| Standards | | | | |
| Biocompatibility | All user directly<br>contacting materials are<br>compliance with<br>ISO10993-5 and | All user directly contacting<br>materials are compliance<br>with ISO10993-5 and<br>ISO10993-10 | All user directly<br>contacting materials<br>are compliance with<br>ISO10993-5 and | SE |
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| <b>Sponsor:</b> | Hong Qiang Xing (Shenzhen) Electronics Limited |
|------------------------|-----------------------------------------------------------|
| <b>Subject Device:</b> | Fitness Belt, Model: SM9065 |
| <b>File No.:</b> | 510(k) submission report (V1.0), Chapter 6 510(k) Summary |
| Elements of<br>Comparison | Subject Device | Predicate Device | Remark |
|---------------------------|------------------------------------------------|-----------------------------------------------|--------|
| | ISO10993-10<br>requirements. | ISO10993-10<br>requirements. | |
| Electrical Safety | Comply with IEC 60601-<br>1 and IEC 60601-2-10 | Comply with IEC 60601-1<br>and IEC 60601-2-10 | SE |
| EMC | Comply with IEC 60601-<br>1-2 | Comply with IEC 60601-<br>1-2 | SE |
#### Comparison in Detail(s):
#### Note 1:
Although the muscles for intended use of subject device are different from predicate devices, we can find that the predicate devices can also be used on the same muscles according to the device description of 510(k) summary. So the subject device and predicate devices have the same intended use aspect.
#### Note 2:
Although the "Power Source(s)", "Patient Leakage Current", "Average DC current through electrodes when device is on but no pulses are being applied", "Operating Environment", "Storage Environment" are a little different from the predicate devices, they all comply with IEC 60601-1 requirements. So the differences will not raise any safety or effectiveness issue.
#### Note 3:
Although the " Number of Output Intensity Level", " Method of Channel Isolation", " Timer Range", "Weight", "Dimensions" and "the electrode size" of subject device are different from the predicate devices, they are all comply with IEC 60601-2-10 requirements. So the differences of the function specifications will not raise any safety or effectiveness issue.
#### Note 4:
Although the "Maximum Output Voltage", "Maximum Output Current", "Pulse Duration", "Maximum pulse frequency", "Net Charge (per pulse)", "Maximum Phase Charge", "Maximum Average Current", "Maximum Current Density", "Maximum Average Power Density of subject device", "Burst Mode" "ON Time" and "OFF Time" are a little different from the predicate devices, they all comply with IEC 60601-2-10 requirement, FDA guidance requirement for Transcutaneous Electrical Nerve Stimulator for Pain Relief and FDA guidance requirement for Powered Muscle Stimulator for Muscle Conditioning. So the differences of function specification will not raise any safety or effectiveness issue.
{13}------------------------------------------------
#### Conclusion
The SM9065 Fitness Belt was evaluated with Safety, EMC, Biocompatibility and Waveform Test. The conclusions from testing of the SM9065 Fitness Belt demonstrate that the device is as safe and effective as the legally marketed predicate devices.
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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.