The Huibao BE-136 Body Fat Scale measures body weight and impedance for the person standing on the four foot electrodes, and then estimates and displays the information of body weight, total body fat percentage, total body water percentage, bone mass, and daily calorie intake(DCI) using Foot-to-Foot BIA(bioelectrical impedance analysis) method. BF-136 is intended for the healthy person whose age is between 10 and 80 years old

Device Description

The Huibao BF-136 Body Fat Scale is a program-controlled body composition analyzer that utilizes Foot-to-Foot BIA(bioelectrical impedance analysis) to determine body weight, total body fat percentage, total body water percentage, bone mass, and daily calorie intake(DCI) for the person whose age is between 10 and 80 years old.

The Huibao BE-136 Body Fat Scale measures body weight and impedance for the person standing on four foot electrodes which generate a 100 µA/30KHz current for the measurement of body impedance, and then estimates and displays the information of body weight, total body fra percentage, total body water percentage, bone mass, and daily calorie intake(DCI) via taking the input personnel body condition parameters into account.

AI/ML Overview

This document describes the acceptance criteria and the study conducted to demonstrate the substantial equivalence of the Huibao Body Fat Scale, model BF-136, to a predicate device, the TANITA InnerScan Body Composition Monitor model BC-534 (K040778).

1. Acceptance Criteria and Reported Device Performance

The acceptance criteria for the Huibao Body Fat Scale, model BF-136, was defined as the deviation between its measurements and those of the predicate device (TANITA/BC-534) being within 10%. The study's reported device performance met these criteria for all measured parameters.

Comparison feature	Max. deviation	Min. deviation	Acceptance Criteria (Deviation vs. Predicate)	Verdict
1. Body Fat Percentage	9.09 %	-8.70 %	≤ 10%	Acceptable
2. Water Percentage	8.83 %	-3.33 %	≤ 10%	Acceptable
3. Bone Mass	9.09 %	-5.88 %	≤ 10%	Acceptable
4. Daily calorie intake	1.18 %	-1.45 %	≤ 10%	Acceptable

2. Sample Size and Data Provenance

Sample Size for the Test Set: 35 male and female subjects.
Data Provenance: The study was "performed by manufacturer," implying an internal study, likely conducted in China based on the submitter's location. The study is retrospective in the sense that it compares the new device's readings to an existing predicate device.

3. Number of Experts and Qualifications for Ground Truth

Not applicable. The ground truth for this study was established by comparison to a predicate device, not through expert review of diagnostic images or clinical assessments.

4. Adjudication Method for the Test Set

Not applicable. There was no adjudication method described as it was a direct comparison between two devices.

5. Multi Reader Multi Case (MRMC) Comparative Effectiveness Study

Not applicable. This was not a MRMC comparative effectiveness study. It was a performance comparison between an investigational device and a predicate device.

6. Standalone Performance Study

A standalone performance study was performed in the sense that the device's measurements (body weight, total body fat percentage, total body water percentage, bone mass, and daily calorie intake) were directly compared to those of a predicate device. The performance focused on the agreement between the two devices.

7. Type of Ground Truth Used

The ground truth used was the measurements obtained from a legally marketed predicate device, the TANITA InnerScan Body Composition Monitor model BC-534 (K040778). The "ground truth" for the new device's performance was its agreement with this established device.

8. Sample Size for the Training Set

Not applicable. The document does not mention any training set as this type of device (body fat scale using BIA) typically relies on algorithms derived from physiological models rather than machine learning models that require specific training sets in the context of this 510(k) submission.

9. How the Ground Truth for the Training Set Was Established

Not applicable, as there was no explicit mention of a training set for machine learning. The device utilizes "Foot-to-Foot BIA (bioelectrical impedance analysis)" which relies on established physiological algorithms to estimate body composition parameters. The performance evaluation focused on comparing the output of these algorithms against a predicate device.

Summary

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510(K) SUMMARY

OCT - 7 2011

This summary of 510(k) safety and effectiveness information is being submitted in accordance with the requirements of SMDA 1990 and 21 CFR 807.92, and the relevant 510(k) submission guidance on September 23, 2011.

The assigned 510(k) number is: K111404

1. Submitter's Identifications: Contact Person : Mr. Kevin Deng Zhongshan Huibao Weighing Apparatus Co., Ltd. Changan Road, Guzhen Town, Zhongshan City, Guangdong, China Phone: +86-760-2366-8989 Fax: +86-760-2239-0081
  Name of the Device & Classification Information: 2. Trade Name(Proprietary Name) : Huibao Body Fat Scale, model BF-136 Common Name(Usual Name) : Huibao Body Fat Scale, model BF-136. Classification Name : Impedance Plethysmograph Classification Number (Code) : 21 CFR/Part 870.2770(MNW)
Information of the 510(k) Cleared Device (Predicate Device): లు TANITA InnerScan Body Composition Monitor model BC-534(K040778)

4. Device Description:

န်း Intended Use:
The Huibao BE-136 Body Fat Scale measures body weight and impedance for the person standing on the four electrodes, and then estimates and displays the information of body weight, total body fat percentage,total body water percentage, bone mass, and daily calorie intake(DCI) using Foot-to-Foot BIA(bioelectrical impedance analysis) method. BF-136 is intended for the healthy person whose age is between 10 and 80 years old
Comparison to the 510(k) Cleared Device (Predicate Device): ్. Comparison for the scientific concepts and significant performance characteristics : As the following comparison table :

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K111404
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Scientific Concepts and significant Performance Characteristics:

	Tanita InnerScan Body compositionMonitor Models BC-534, K040778	Huibao Body Fat scale, Model:BF-136
INTENDEDUSE:	A combination non-invasive device,which determines weight and estimatestotal body fat percentage, total bodywater percentage, bone mass, and dailycalorie intake with the use of BIA(Bioelectrical impedance analysis).	A combination non-invasive device,which determines weight andestimates total body fat percentage,total body water percentage, bonemass, and daily calorie intake with theuse of BIA (Bioelectrical impedanceanalysis).
PRODUCTDESCRIPTION:	Body composition monitor / scale thatutilizes a "foot-to-foot" BIA(bioelectrical impedance) technology todetermine internal body composition.	Body composition monitor / scale thatutilizes a "foot-to-foot" BIA(bioelectrical impedance) technologyto determine internal bodycomposition.
ANALYTICALMETHOD/	Foot-to-Foot BIA.	Foot-to-Foot BIA.
ImpedanceMeasurementCircuit	180 µA/50KHz impedancemeasuring current through four footelectrodes.	100 µA/30KHz impedancemeasuring current through four footelectrodes.

1. Discussion of Non-Clinical Tests Performed Determination of Substantial Equivalence: Compliance is ensure via the following voluntary standard testing reports: 1> EN/IEC 60601-1 for electrical safety compliance tested by accredited laboratory 2> EN/IEC 60601-1-2 for EMC compliance tested by accredited laboratory.
Summary discussion of the clinical tests performed for determination of Substantial Equivalence: ర్లో Performance clinical test for the comparison of total body fat percentage, total body water percentage, bone mass, and daily calorie intake(DCI) was performed by manufacturer. For the clinical test, 35 male and female subjects whose age are between 10 and 80 years old were chosen as the investigated users to take comparison measurement. For the comparison, it is considered acceptable that the deviation between our device Huibao/BF-136 and the predicate device TANITA/BC-534(K040778) is within 10%. Consequently, the maximum and minimum deviation of comparison testing and results are as the following table:

Comparison feature	Max. deviation	Min. deviation	Verdict
1. Body Fat Percentage	9.09 %	-8.70 %	Acceptable
2. Water Percentage	8.83 %	-3.33 %	Acceptable
3. Bone Mass	9.09 %	-5.88 %	Acceptable
4. Daily calorie intake	1.18 %	-1.45 %	Acceptable

During the execution of the clinical test, no any adverse effect or complication was encountered for every individual who was subjected to the clinical test.

Conclusions ்.

Based on the clinical test comparison results for the measurement performance of total body fat percentage, total body water percentage, bone mass, and daily calorie infrake(DCI) performed by manufacturer as presented in section 8, and the completed electrical safety and EMC testing report performed by accredited laboratory presented in section 7, it was concluded that the Hubao Body Fat Scale, model BF-136 as well as the predicate device, the TANTA InnerScan Body Composition Monitor model BC-534(K040778), had been proven to meet the relevant safety and efficacy requirements of the device, and therefore is considered as Substantial Equivalence.

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Food and Drug Administration 10903 New Hampshire Avenue Document Mail Center - WO66-G609 Silver Spring, MD 20993-0002

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Mr. Kevin Deng Official Correspondent Zhongshan Huibao Weighing Apparatus Co., Ltd. Chang An Road GUZHEN TOWN ZHONGSHAN CITY GUANGDONG 528421 CHINA

Re: K111404

Trade/Device Name: Huibao Body Fat Scale, model BF-136 Regulation Number: 21 CFR§ 870.2770 Regulation Name: Impedance plethysmograph Regulatory Class: II Product Code: MNW Dated: September 26, 2011 Received: September 28, 2011

Dear Mr. Deng:

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 10 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 of medical device-related

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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.

If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please go to http://www.fda.gov/AboutFDA/CentersOffices/CDRH/CDRHOffices/ucm11.5809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 1000 the 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 Small Manufacturers, International and Consumer Assistance 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.

http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.

Sincerely yours,

Hubert Lewin, MD

Herbert P. Lerner, M.D., Director (Acting) Division of Reproductive, Gastro-Renal and Urological Devices Office of Device Evaluation Center for Devices and Radiological Health.

Enclosure

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Zhongshan Huibao Weighing Apparatus Co., Ltd.

Indications For Use

510(k) Number (if known): K111404

Device Name: Huibao Body Fat Scale, model BF-136

Indications For Use:

Prescription Use (Part 21 CFR 801 Subpart D)

Over-The-Counter Use 4 (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)

(Division Sign-Off)
Division of Reproductive, Gastro-Renai, andUrological Devices
510(k) Number	K111404

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Regulation Number and Section

§ 870.2770 Impedance plethysmograph.

(a)
Identification. An impedance plethysmograph is a device used to estimate peripheral blood flow by measuring electrical impedance changes in a region of the body such as the arms and legs.(b)
Classification. Class II (special controls). The device, when it is a body composition analyzer which is not intended to diagnose or treat any medical condition, is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 870.9.