K Number
K211775
Date Cleared
2021-10-22

(135 days)

Product Code
Regulation Number
884.5470
Panel
OB
Reference & Predicate Devices
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
Intended Use

COHITECH Organic Cotton Non-Applicator Cottonlock Tampons (light, regular, super, and super plus absorbencies) are inserted into the vagina and used to absorb menstrual fluid.

Device Description

The subject device is a conventional unscented menstrual tampon consisting of an organic cotton absorbent pledget ("absorbent core"), completely surrounded by an organic cotton cover ("security veil") and with an organic cotton string ("withdrawal cord"). These tampons will be provided on four absorbencies: light (6g and under), regular (6-9g), super (9-12g) and super plus (12-15g). Each organic cotton non-applicator Cottonlock tampon is wrapped in a cellulose paper individual wrapper and packaged in sealed multi-unit containers for retail sale.

AI/ML Overview

The provided text describes the 510(k) summary for the COHITECH Organic Cotton Non-Applicator Cottonlock Tampons, which is a menstrual tampon. The document details studies performed to demonstrate substantial equivalence to a predicate device, focusing on non-clinical data. It does not describe an AI/ML powered device, therefore no AI-specific acceptance criteria or studies are mentioned.

Here's the information as requested, adapted to what is available in the document:

1. Table of Acceptance Criteria (Performance Standards) and Reported Device Performance

Performance CharacteristicAcceptance Criteria (Standard/Guidance)Reported Device Performance
Biocompatibility
CytotoxicityISO 10993-5:2009Acceptable (Implied by "results of the non-clinical testing were acceptable")
Vaginal IrritationISO 10993-10:2010Acceptable (Implied by "results of the non-clinical testing were acceptable")
Delayed HypersensitivityISO 10993-10:2010Acceptable (Implied by "results of the non-clinical testing were acceptable")
Acute Systemic ToxicityISO 10993-11:2017Acceptable (Implied by "results of the non-clinical testing were acceptable")
Physical/Chemical Testing
AbsorbencySyngyna testing per 21 CFR 801.430(f)(2)Acceptable (Implied by "results of the non-clinical testing were acceptable")
Chemical ResiduesFDA Guidance for Industry and FDA Staff - Menstrual Tampons and Pads: 2005Acceptable (Implied by "results of the non-clinical testing were acceptable")
Tampon IntegrityFDA Guidance for Industry and FDA Staff - Menstrual Tampons and Pads: 2005Acceptable (Implied by "results of the non-clinical testing were acceptable")
String StrengthFDA Guidance for Industry and FDA Staff - Menstrual Tampons and Pads: 2005Acceptable (Implied by "results of the non-clinical testing were acceptable")
Fiber SheddingFDA Guidance for Industry and FDA Staff - Menstrual Tampons and Pads: 2005Acceptable (Implied by "results of the non-clinical testing were acceptable")
Dimensional AnalysisFDA Guidance for Industry and FDA Staff - Menstrual Tampons and Pads: 2005Acceptable (Implied by "results of the non-clinical testing were acceptable")
Preclinical Microbiology
S. aureus growthNot enhance the growth of Staphylococcus aureus (FDA Guidance: 2005)Does not enhance growth (Implied by "results of the non-clinical testing were acceptable")
TSST-1 productionNot increase the production of Toxic Shock Syndrome Toxin-1 (TSST-1) (FDA Guidance: 2005)Does not increase production (Implied by "results of the non-clinical testing were acceptable")
Vaginal microfloraNot alter the growth of the normal vaginal microflora (FDA Guidance: 2005)Does not alter growth (Implied by "results of the non-clinical testing were acceptable")

2. Sample size used for the test set and the data provenance

The document does not specify exact sample sizes for each test. It refers to "Biocompatibility studies" and "Preclinical microbiology" without providing the number of samples or specimens used in these tests. The provenance of the data (country of origin, retrospective/prospective) is not explicitly stated, but the studies were performed "in accordance with the 2020 FDA guidance... and standard ISO 10993-1" and "Guidance for Industry and FDA Staff - Menstrual Tampons and Pads... 2005," implying they were conducted as part of the regulatory submission process, likely prospectively for the purpose of this submission. The manufacturer is based in Spain, so it's plausible the testing involved European labs, but this is not confirmed.

3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts

This information is not applicable and is not provided. The studies outlined are laboratory tests and measurements against established physical, chemical, and biological standards, not diagnostic assessments requiring expert interpretation of "truth."

4. Adjudication method for the test set

Not applicable. The tests are scientific measurements and biological assays, not interpretations requiring adjudication by experts.

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. The device is a menstrual tampon, not an AI-powered diagnostic or screening tool.

6. If a standalone (i.e., algorithm only without human-in-the-loop performance) was done

Not applicable. The device is a menstrual tampon, not an AI-powered algorithm.

7. The type of ground truth used

The ground truth used for this device's evaluation is based on established physical, chemical, and biological performance standards and regulatory guidance. These include:

  • ISO 10993 series for biocompatibility (e.g., Cytotoxicity, Vaginal Irritation, Delayed Hypersensitivity, Acute Systemic Toxicity).
  • 21 CFR 801.430(f)(2) for absorbency (Syngyna testing).
  • FDA Guidance for Industry and FDA Staff - Menstrual Tampons and Pads (2005) for other performance characteristics like chemical residues, tampon integrity, string strength, fiber shedding, dimensional analysis, and preclinical microbiology regarding Staphylococcus aureus growth, TSST-1 production, and impact on vaginal microflora.

8. The sample size for the training set

Not applicable. The device is a menstrual tampon and does not involve AI/ML requiring a training set.

9. How the ground truth for the training set was established

Not applicable. There is no AI/ML training set for this device.

§ 884.5470 Unscented menstrual tampon.

(a)
Identification. An unscented menstrual tampon is a device that is a plug made of cellulosic or synthetic material that is inserted into the vagina and used to absorb menstrual or other vaginal discharge. This generic type of device does not include menstrual tampons treated with scent (i.e., fragrance materials) or those with added antimicrobial agents or other drugs.(b)
Classification. Class II (performance standards).