(256 days)
The GyneFlex is recommended for the strengthening of the perineal pelvic floor muscles by offering resistance to an individual's voluntary contractions of these muscles. It seeks to correct, through exercise, urinary incontinence.
The GyneFlex is a pelvic floor muscle exerciser. The product has six ranges of resistance. Other than variation in resistance, each exerciser is identical, including identical indications and labeling. It is a "v" sh aped device that provides resistance after insertion into the vagina when the patient contracts her pelvic muscles. The material is made of a polymer plastic specifically formulated to provide specific ranges of resistance for use as an adjunct to Kegel exercises.
The provided text describes a 510(k) premarket notification for a medical device called "GyneFlex," a pelvic floor muscle exerciser. It does not contain information about acceptance criteria, a specific study proving the device meets acceptance criteria, or any of the detailed data requested for such a study (sample sizes, expert qualifications, adjudication methods, MRMC studies, standalone performance, or training set details).
The document focuses on demonstrating substantial equivalence to a legally marketed predicate device (Colonial Medical Supply Pelvic Muscle Therapy) rather than providing a detailed performance study with acceptance criteria.
However, based on the information provided, I can infer and state what is present and what is conspicuously absent.
Acceptance Criteria and Device Performance Study for GyneFlex
Summary of Findings: The provided 510(k) submission for the GyneFlex device (K021115) primarily focuses on demonstrating substantial equivalence to an existing legally marketed device (Colonial Medical Supply Pelvic Muscle Therapy, K002830). It does not present specific acceptance criteria in terms of quantitative performance metrics (e.g., sensitivity, specificity, accuracy, or a measure of muscle strengthening efficacy). Instead, the "acceptance" implied by this submission is the FDA's determination of substantial equivalence, which is based on similar intended use and technological characteristics to the predicate device.
The "study" referenced in the document is limited to testing for biocompatibility and non-toxicity, which are general safety requirements, rather than a performance efficacy study.
1. Table of Acceptance Criteria and Reported Device Performance
Note: The document does not define explicit "acceptance criteria" in terms of performance metrics or clinical outcomes for the GyneFlex device beyond biocompatibility and substantial equivalence to the predicate. The "reported device performance" is descriptive rather than quantitative.
| Acceptance Criteria (Implied/Stated) | Reported Device Performance |
|---|---|
| Safety: Biocompatibility, non-toxicity, and mucosal membrane tolerance. | "Testing results indicate that the material is biocompatible, nontoxic and well tolerated by mucosal membranes." (Section F: Testing) |
| Functional Design: Provide resistance to voluntary contractions of pelvic muscles for strengthening. | Described as "a 'v' shaped device that provides resistance after insertion into the vagina when the patient contracts her pelvic muscles. The material is made of a polymer plastic specifically formulated to provide specific ranges of resistance..." (Section B: Device Description) and "provides graduated resistance in specified ranges..." (Section D: Substantial Equivalence Summary). |
| Intended Use Equivalence: Strengthening perineal muscles to correct urinary incontinence. | "The GyneFlex is recommended for the strengthening of the perineal muscles by offering resistance to an individual's voluntary contractions of these muscles. It seeks to correct, through exercise, urinary incontinence." (Section C: Intended Use). This is stated to be similar to the predicate device. |
| Technological Characteristics Equivalence: Similar materials and design to predicate. | "The GyneFlex is a single, reusable, polymer plastic 'v' shaped exerciser that exceeds the guidelines set forth in ISO 10993." (Section E: Technological Characteristics). This is stated to be similar to the predicate device. |
| Manufacturing Standards: Adherence to relevant standards. | "exceeds the guidelines set forth in ISO 10993." (Section E: Technological Characteristics) |
| Substantial Equivalence: To the predicate device (Colonial Medical Supply Pelvic Muscle Therapy, K002830). | The FDA issued a letter stating, "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..." (FDA Letter, Page 3). |
2. Sample Size Used for the Test Set and Data Provenance
The provided document does not specify any sample size for a test set related to the device's efficacy in strengthening pelvic muscles or correcting urinary incontinence. The only "testing" mentioned is for biocompatibility.
The data provenance for biocompatibility testing is not specified (e.g., country of origin, retrospective/prospective).
3. Number of Experts Used to Establish Ground Truth for the Test Set and Qualifications
This information is not provided in the document. No clinical test set to establish "ground truth" for efficacy is described.
4. Adjudication Method for the Test Set
No test set for clinical performance is described; therefore, no adjudication method is mentioned.
5. If a Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study was Done
No MRMC comparative effectiveness study was done or mentioned in this 510(k) submission. This type of study is typically performed for AI-based diagnostic devices to assess the impact of AI assistance on human reader performance, which is not relevant to a physical pelvic floor muscle exerciser.
6. If a Standalone Performance Study was Done
No standalone performance study (algorithm only performance, often for AI/software devices) was done or mentioned. The device is a physical exerciser, not a software algorithm. The "testing" mentioned is for material properties (biocompatibility).
7. The Type of Ground Truth Used
For the biocompatibility testing, the ground truth would likely be based on established laboratory standards and protocols for assessing material safety and interaction with biological systems (e.g., ISO 10993 standards mentioned).
For the intended use (muscle strengthening, incontinence correction), the submission relies on the established efficacy of the predicate device and the general understanding that pelvic floor muscle exercises are beneficial. No new clinical ground truth for efficacy of the GyneFlex itself is presented in this document.
8. The Sample Size for the Training Set
Not applicable and not provided. The GyneFlex is a physical medical device, not a machine learning or AI algorithm that requires a training set.
9. How the Ground Truth for the Training Set Was Established
Not applicable and not provided. As the device is not an AI/ML system, there is no training set or corresponding ground truth establishment process described.
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ATTACHMENT 2
510(k) SUMMARY
K021115
(Revised)
GyneFlex
Common/Classification Name: Perineometer, 21 CFR 884.1425
Naissance Holdings, L.C. 4905 34th Street South St. Petersburg, FL 33711
Contact: Suzanne B. Sloan Nancy E. Taylor
Prepared: April 4, 2002 Revised: December 9, 2002
LEGALLY MARKETED DEVICE A.
The Colonial Medical Supply Pelvic Muscle Therapy was cleared for marketing on December 27, 2000, in premarket notification K002830. Naissance Holdings, L.C., submits this premarket notification for GyneFlex.
DEVICE DESCRIPTION B.
The GyneFlex is a pelvic floor muscle exerciser. The product has six ranges of resistance. Other than variation in resistance, each exerciser is identical, including identical indications and labeling.
It is a "v" sh aped device that provides resistance after insertion into the vagina when the patient contracts her pelvic muscles. The material is made of a polymer plastic specifically formulated to provide specific ranges of resistance for use as an adjunct to Kegel exercises.
C. INTENDED USE
Naissance Holdings, LLC Revised 510(k) for K021115 December 9, 2002
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The GyneFlex is recommended for the strengthening of the perineal muscles by offering resistance to an individual's vo luntary contractions of these muscles. It seeks to correct, through exercise, urinary incontinence.
SUBSTANTIAL EQUIVALENCE SUMMARY D.
The GyneFlex is substantially equivalent to the Colonial Medical Supply Pelvic Muscle Therapy, a perineometer, which was cleared for marketing on December 27, 2000, in premarket notification K002830.
The GyneFlex has indications for use that are similar to those as the legally marketed predicate device. Both the GyneFlex and the predicate device have identical indications concerning the strengthening of the pelvic floor muscles, which has been found to help women with incontinence, is consistent with 21 C.F.R. 884.1425. GyneFlex provides graduated resistance in specified ranges that help train the user in proper and effective pelvic floor muscle contractions and exercises, which is similar to the biofeedback provided by the predicate device.
ய் TECHNOLOGICAL CHARACTERISTICS
The GyneFlex is a single, reusable, polymer plastic "v" shaped exerciser that exceeds the guidelines set forth in ISO 10993.
F. TESTING
Testing results indicate that the material is biocompatible, nontoxic and well tolerated by mucosal membranes.
G. CONCLUSIONS
This premarket submission has demonstrated that the GyneFlex is substantially
equivalent to a device previously cleared for marketing by FDA.
Naissance Holdings, LLC Revised 510(k) for K021115 December 9, 2002
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DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/2/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. Inside the circle is a stylized symbol that resembles a bird or an abstract human figure.
Public Health Service
DFC 2 0 2002
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
Naissance Holdings, L.C. % Ms. Eleanor A. Kolton Greenburg Traurig, LLP Attorneys at Law 800 Connecticut Avenue, Suite 500 WASHINGTON D.C. 20006
Re: K021115
Trade/Device Name: GyneFlex Regulation Number: 21 CFR 884.1425 Regulation Name: Perineometer Regulatory Class: II Product Code: 85 HIR Dated: October 24, 2002 Received: October 28, 2002
Dear Ms. Kolton:
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.
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); 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.
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This letter will allow you to begin marketing your device as described in your 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Office of Compliance at one of the following numbers, based on the regulation number at the top of this letter:
| 8xx.1xxx | (301) 594-4591 |
|---|---|
| 876.2xxx, 3xxx, 4xxx, 5xxx | (301) 594-4616 |
| 884.2xxx, 3xxx, 4xxx, 5xxx, 6xxx | (301) 594-4616 |
| 892.2xxx, 3xxx, 4xxx, 5xxx | (301) 594-4654 |
| Other | (301) 594-4692 |
Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Also, please note the regulation entitled. "Misbranding by reference to premarket notification" (21 CFR Part 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html.
Sincerely yours,
Henry C. Brogdon
Nancy C. Brogdon Director, Division of Reproductive, Abdominal, and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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ATTACHMENT 3
STATEMENT OF INDICATIONS FOR USE
510(k) Number (if known): K021115
Device name: GyneFlex
Indications for Use:
The GyneFlex is recommended for the strengthening of the perineal pelvic floor muscles by offering resistance to an individual's voluntary contractions of these muscles. It seeks to correct, through exercise, urinary incontinence.
(PLEASE DO NOT WRITE BELOW THIS LINE -- CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Prescription Use (Per 21 CFR 801.109) OR
Over-the-Counter Use V
David A. Legman
(Division Sign-Off) Division of Reproductive, Abdominal, and Radiological Devices 510(k) Number _
Naissance Holdings, LLC Revised 510(k) for K021115 December 9, 2002
§ 884.1425 Perineometer.
(a)
Identification. A perineometer is a device consisting of a fluid-filled sack for intravaginal use that is attached to an external manometer. The devices measure the strength of the perineal muscles by offering resistence to a patient's voluntary contractions of these muscles and is used to diagnose and to correct, through exercise, uninary incontinence or sexual dysfunction.(b)
Classification. Class II (performance standards).