K Number
K212299
Date Cleared
2022-01-04

(166 days)

Product Code
Regulation Number
878.4040
Reference & Predicate Devices
Predicate For
N/A
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
Intended Use

The Medical Surgical Mask is intended to be worn to protect both the patient and healthcare personnel from transfer of microorganisms, body fluids and particulate material. These surgical masks are intended for use in infection control practices to reduce the potential exposure to blood and body fluids. This is a single use, disposable device(s), provided non-sterile.

Device Description

The Medical Surgical Mask is single use, flat-pleated masks that are provided in blue. The Medical Surgical Mask is available in two types, which are Level 3 based on ASTM F2100-19. The inner and outer layers of the mask are made of polypropylene non-woven fabric, the middle layer is made of polypropylene meltblown fabric, and the nose clip is made of polypropylene and iron wire. Users can adjust the nose clip according to the shape of the nose, and fix the mask on the bridge of the nose to prevent the mask from falling off. The ear loops are made of spandex. The ear loops are held in place over the users' mouth and nose by two ear loops welded to the mask. This is a single use, disposable device(s), provided non-sterile.

AI/ML Overview

The provided document is a 510(k) premarket notification for a Medical Surgical Mask. It details the device's characteristics, intended use, and the non-clinical testing performed to establish substantial equivalence to a predicate device.

However, the request asks for information regarding an AI/Software as a Medical Device (SaMD) study, specifically about acceptance criteria, ground truth establishment, sample sizes for training and testing, expert qualifications, and potential MRMC studies.

The provided document is NOT for an AI/SaMD device. It is for a physical medical device (a surgical mask) and therefore does not contain any of the information requested about AI/SaMD acceptance criteria or study methodologies.

Therefore, I cannot fulfill the request using the provided text. The document discusses:

  • Acceptance Criteria (for a physical surgical mask): These are performance standards like Bacterial Filtration Efficiency (BFE), Differential Pressure, Sub-micron Particulate Filtration Efficiency, Resistance to Penetration by Synthetic Blood, and Flame Spread, as well as Biocompatibility.
  • Device Performance: The document states "Passed" for all the listed performance tests against the specified acceptance criteria for Level 2 and Level 3 masks.
  • Study That Proves the Device Meets Acceptance Criteria: This is the "Non-Clinical Test Conclusion" section (pages 4-5), where various physical and biological tests were performed according to recognized standards (e.g., ASTM F2101, EN14683, ASTM F1862, 16CFR Part 1610, ISO 10993).

To explicitly address the numbered points in the prompt based on the provided document (even though it's not an AI/SaMD):

  1. A table of acceptance criteria and the reported device performance:

    Performance TestingPurposeAcceptance Criteria for Level 2 BarrierAcceptance Criteria for Level 3 BarrierResult
    Bacterial Filtration Efficiency ASTM F2101Measure bacterial filtration efficiency≥98%≥98%Passed
    Differential Pressure (mm H2O/cm2)Determine breathability of a mask<6.0 H2O/cm²<6.0 H2O/cm²Passed
    Sub-micron Particulate Filtration Efficiency ASTM F2299/F2299M-03Measure initial particle filtration efficiency≥98%≥98%Passed
    Resistance to Penetration by Synthetic Blood ASTM F1862/F1862M-2017Evaluate the resistance to penetration by impact of small volume of synthetic blood120 mmHg160 mmHgPassed
    Flame spread 16CFR Part 1610-2008Response of materials to heat and flameClass IClass IPassed

    Biocompatibility Acceptance Criteria and Results:

    Biocompatibility EvaluationBiological EffectStandardResults
    CytotoxicityISO 10993-5Not cytotoxic
    SensitizationISO 10993-10Non sensitizing
    IrritationISO 10993-10Negligibly irritating
  2. Sample sizes used for the test set and the data provenance: The document does not specify the sample sizes used for each of the non-clinical tests (e.g., how many masks were tested for BFE). It also does not specify the country of origin of the data or whether the testing was retrospective or prospective, though it implicitly describes a prospective testing process for compliance.

  3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts: This is not applicable to the type of device. The "ground truth" for a surgical mask's performance is established by standardized test methodologies and equipment, not human expert consensus.

  4. Adjudication method (e.g. 2+1, 3+1, none) for the test set: Not applicable for non-clinical performance testing of a physical device.

  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: Not applicable. This device is not an AI/SaMD, so no MRMC study or AI assistance is relevant.

  6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done: Not applicable. This device is not an AI/SaMD.

  7. The type of ground truth used (expert consensus, pathology, outcomes data, etc): The "ground truth" for this device's performance is determined by adherence to established, quantitative non-clinical testing standards and their respective measurement methods. For biocompatibility, it's based on biological responses in standardized in-vitro and in-vivo tests according to ISO 10993.

  8. The sample size for the training set: Not applicable. There is no AI/ML model for this physical device that would require a "training set."

  9. How the ground truth for the training set was established: Not applicable.

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Image /page/0/Picture/0 description: The image shows the logo of the U.S. Food and Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is the FDA logo, which is a blue square with the letters "FDA" in white. To the right of the blue square is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue.

January 4, 2022

Wepon Medical Technology Co., Ltd. Yongxian Sun Manager Representative West side of North Baizhang Road, Chengdong Street Wenling, Zhejiang 317500 China

Re: K212299

Trade/Device Name: Medical Surgical Mask Regulation Number: 21 CFR 878.4040 Regulation Name: Surgical Apparel Regulatory Class: Class II Product Code: FXX Dated: November 21, 2021 Received: December 2, 2022

Dear Yongxian Sun:

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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. 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

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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 adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.

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 https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.

For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).

Sincerely,

For Clarence W. Murray III, PhD Assistant Director DHT4B: Division of Infection Control and Plastic Surgery Devices OHT4: Office of Surgical and Infection Control Devices Office of Product Evaluation and Ouality Center for Devices and Radiological Health

Enclosure

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Indications for Use

510(k) Number (if known) K212299

Device Name Medical Surgical Mask

Indications for Use (Describe)

The Medical Surgical Mask is intended to be worn to protect both the patient and healthcare personnel from transfer of microorganisms, body fluids and particulate material. These surgical masks are intended for use in infection control practices to reduce the potential exposure to blood and body fluids. This is a single use, disposable device(s), provided non-sterile.

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)

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510(k) Summary K212299

I Submitter

  • Device submitter: Wepon Medical Technology Co., Ltd. West side of North Baizhang Road, Chengdong Street, Wenling City, Zhejiang Province, China
  • Contact person: Yongxian Sun Management Representative Phone: +86 13586268021 E-mail: syx@wepon.cc

II Proposed Device

510(k) Number:K212299
Trade/Device Name:Medical Surgical Mask
Regulation Number:21 CFR 878.4040
Regulation Name:Surgical Apparel
Regulatory Class:Class II
Product code:FXX
Review Panel:General Hospital

III Predicate Devices

510(k) Number:K210030
Trade/Device Name:Medical Surgical Mask
Regulation Number:21 CFR 878.4040
Regulation Name:Surgical Apparel
Classification:Class II
Product Code:FXX
Manufacturer:Tianjin Aoshang Outdoor Equipment Co., Ltd.

IV Device description

The Medical Surgical Mask is single use, flat-pleated masks that are provided in blue. The Medical Surgical Mask is available in two types, which are Level 3 based on ASTM F2100-19.

The inner and outer layers of the mask are made of polypropylene non-woven fabric, the middle layer is made of polypropylene meltblown fabric, and the nose clip is made of polypropylene and iron wire. Users can adjust the nose clip according to the shape of the nose, and fix the mask on the bridge of the nose to prevent the mask from falling off. The ear loops are made of spandex. The ear loops are held in place over the users' mouth and nose by two ear loops welded to the mask.

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This is a single use, disposable device(s), provided non-sterile.

V Indication for use

The Medical Surgical Mask is intended to be worn to protect both the patient and healthcare personnel from transfer of microorganisms, body fluids and particulate material. These surgical masks are intended for use in infection control practices to reduce the potential exposure to blood and body fluids. This is a single use, disposable device(s), provided non-sterile.

VI Non-Clinical Test Conclusion

The Medical Surgical Mask was tested in accordance with the tests recommended in the FDA guidance document, Guidance for Industry and FDA Staff Surgical Masks - Premarket Notification [510(k)] Submission issued March of 2004. Based upon the guidance document the following testing has been performed.

Performance Testing
Test MethodologyPurposeAcceptance Criteria forLevel 2 BarrierAcceptance Criteria forLevel 3 BarrierResult
Bacterial FiltrationEfficiency ASTMF2101Measure bacterialfiltration efficiency≥98%≥98%Passed
Differential Pressure(mm H2O/cm2)EN14683:2019 Annex CDeterminebreathability of amask<6.0 H2O/cm²<6.0 H2O/cm²Passed
Sub-micron ParticulateFiltration EfficiencyASTM F2299/F2299M-03Measure initialparticlefiltration efficiency≥98%≥98%Passed
Resistance toPenetration by SyntheticBlood ASTM F1862/F1862M-2017Evaluate theresistance topenetration byimpact of smallvolume of syntheticblood120 mmHg160 mmHgPassed
Flame spread 16CFRPart 1610-2008Response ofmaterials to heat andflameClass IClass IPassed

Biocompatibility Testing

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The biocompatibility evaluation for the Medical Surgical Mask was conducted in accordance with ISO 10993-1:2018 Biological Evaluation of Medical Devices—Part 1: Evaluation and Testing within a Risk Management Process, as recognized by FDA. The Medical Surgical Mask is classified as a surface contacting device. Specific biocompatibility tests were selected under the guidance of ISO 10993-1:2018 Annex A.

Biocompatibility Evaluation
Biological EffectStandardResults
1CytotoxicityISO 10993-5Not cytotoxicPassed
2SensitizationISO 10993-10Non sensitizingPassed
3IrritationISO 10993-10Negligibly irritatingPassed

VII Clinical Test Conclusion

No clinical study is included in this submission.

VIII Summary of Technological characteristics

Table 1 Comparison of Medical Surgical Mask

ItemSubject devicePredicate device(K210030)Discussion
Product nameMedical Surgical MaskMedical Surgical MaskNA
Product CodeFXXFXXidentical
Intended useThe Medical Surgical Mask isintended to be worn to protectboth the patient and healthcarepersonnel from transfer ofmicroorganisms, body fluidsand particulate material. Thesesurgical masks are intendedfor use in infection controlpractices to reduce thepotential exposure to bloodand body fluids. This is asingle use, disposabledevice(s), providednon-sterile.The Medical Surgical Masksare intended to be worn toprotect both the patient andhealthcare personnel fromtransfer of microorganisms,body fluids and particulatematerial. These surgical masksare intended for use ininfection control practices toreduce the potential exposureto blood and body fluids. Thisis a single use, disposabledevice(s), provided non-sterile.identical
Mask styleFlat-pleatedFlat-pleatedidentical
ASTM F2100 LevelLevel 2 and Level 3Level 2 and Level 3identical
Design featureLevel 2: Ear loopLevel 2: Ear loopidentical
Level 3: Ear loopLevel 3: Ear loop and Tie-on
ColorBlueBlueidentical
Dimension17.5cmx9.5cm17.5cmx9.5cmidentical
SterilityNon-SterileNon-Sterileidentical
UseSingle Use, DisposableSingle Use, Disposableidentical
ParticulatefiltrationefficiencyLevel 2 and Level 3: average 99.96%Level 2 mask: average 99.71%Level 3 mask: average 99.93%different
Bacterial filtrationefficiencyLevel 2 and Level 3: average99.9%Level 2 mask: average 99.7%Level 3 mask: average 99.9%different
Differential pressureLevel 2 and Level 3: average$2.8 mmH_2O/cm_2$Level 2 mask: average$2.8mmH_2O/cm_2$different
Level 3 mask: average 4.0
$mmH_2O/cm_2$
EN 14683
FlammabilityClass 1Class 1identical
Fluid resistanceLevel 2: Pass at 120mmHgLevel 3: Pass at 160mmHgLevel 2: Pass at 120mmHgLevel 3: Pass at 160mmHgidentical
Label/LabelingComplied with 21 CFR part801Complied with 21 CFR part801identical
Patient Contacting MaterialOuter facinglayerpolypropylene non-wovenfabricSpunbond PolypropyleneDifferent
Middle layerpolypropylene meltblownfabricMeltblown PolypropyleneFilter
Inner facinglayerpolypropylene non-wovenfabricSpunbond Polypropylene
Nose clippolypropylene and iron wirePE and Iron
Ear loopsspandexSpandex
BiocompatibilityISO 10993-5 and ISO10993-10;Under the conditions of thestudy, the proposed deviceextract was determined to benon-cytotoxic, non-sensitizing,and non-irritating.

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Different - Particulate filtration efficiency

The test result for particulate filtration efficiency for the proposed device is different from the two predicate devices. However, the test result for the proposed device can meet the requirements of level 2 mask and Level 3 mask. Thus, this difference will not affect the safety and effectiveness between the

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proposed device and the two predicate devices.

Different - Bacterial filtration efficiency

The test result for bacterial filtration efficiency for the proposed device is different from the two predicate devices. However, the test result for the proposed device can meet the requirements of level 2 mask and Level 3 mask. Thus, this difference will not affect the safety and effectiveness between the proposed device and the two predicate devices.

Different - Differential pressure

The test result for differential pressure for the proposed device is different from the two predicate devices. However, the test result for the proposed device can meet the requirements of level 3 mask based on ASTM F2100-19. Thus, this difference will not affect the safety and effectiveness between the proposed device and the two predicate devices.

Different - Patient Contacting Material

The patient contacting material for the proposed device is different from the two predicate devices. However, biocompatibility test has been performed on the proposed device and the results does not show any adverse effect. Thus, this difference will not affectiveness between the proposed device and the two predicate devices.

IX Conclusion

The proposed device has the same the intended use as the predicate device. It presents similar technological characteristics as the predicate device including the performance parameters and biocompatibility. The non-clinical testing demonstrates that the device is as effective and performs as well as the legally marketed device.

§ 878.4040 Surgical apparel.

(a)
Identification. Surgical apparel are devices that are intended to be worn by operating room personnel during surgical procedures to protect both the surgical patient and the operating room personnel from transfer of microorganisms, body fluids, and particulate material. Examples include surgical caps, hoods, masks, gowns, operating room shoes and shoe covers, and isolation masks and gowns. Surgical suits and dresses, commonly known as scrub suits, are excluded.(b)
Classification. (1) Class II (special controls) for surgical gowns and surgical masks. A surgical N95 respirator or N95 filtering facepiece respirator is not exempt if it is intended to prevent specific diseases or infections, or it is labeled or otherwise represented as filtering surgical smoke or plumes, filtering specific amounts of viruses or bacteria, reducing the amount of and/or killing viruses, bacteria, or fungi, or affecting allergenicity, or it contains coating technologies unrelated to filtration (e.g., to reduce and or kill microorganisms). Surgical N95 respirators and N95 filtering facepiece respirators are exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to § 878.9, and the following conditions for exemption:(i) The user contacting components of the device must be demonstrated to be biocompatible.
(ii) Analysis and nonclinical testing must:
(A) Characterize flammability and be demonstrated to be appropriate for the intended environment of use; and
(B) Demonstrate the ability of the device to resist penetration by fluids, such as blood and body fluids, at a velocity consistent with the intended use of the device.
(iii) NIOSH approved under its regulation.
(2) Class I (general controls) for surgical apparel other than surgical gowns and surgical masks. The class I device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to § 878.9.