← Product Code [GXB](/submissions/NE/subpart-b%E2%80%94neurological-diagnostic-devices/GXB) · K143068

# Medical Monofilament Sensory Screening Toool (K143068)

_Medical Monofilament Manufacturing · GXB · Jan 14, 2015 · Neurology · SESE_

**Canonical URL:** https://fda.innolitics.com/submissions/NE/subpart-b%E2%80%94neurological-diagnostic-devices/GXB/K143068

## Device Facts

- **Applicant:** Medical Monofilament Manufacturing
- **Product Code:** [GXB](/submissions/NE/subpart-b%E2%80%94neurological-diagnostic-devices/GXB.md)
- **Decision Date:** Jan 14, 2015
- **Decision:** SESE
- **Submission Type:** Traditional
- **Regulation:** 21 CFR 882.1500
- **Device Class:** Class 1
- **Review Panel:** Neurology

## Indications for Use

The Fit2Walk Monofilament Sensory Screening Tool is intended to be used to determine whether a person with diabetes has the presence of an adequate level of protective sensation in their feet as indicated by having enough tactile sensitivity in order to perceive 10 grams of force against the skin of their feet. It is indicated for use by adult Diabetic patients on a periodic basis to evaluate changes in sensory perception in the feet due to Diabetic peripheral sensory neuropathy. This device is not to be considered a replacement for routine sensory evaluation by a health care provider.

## Device Story

Device consists of a small polyester filament attached to a handle; functions as a mechanical esthesiometer. Used by adult diabetic patients for self-screening at home. Operation involves pressing the filament against the skin of the foot until it buckles; buckling occurs at a calibrated 10 grams of force. Patient perceives whether the pressure is felt. Output is binary (sensation present or absent). Helps patients monitor for loss of protective sensation (LOPS) associated with diabetic peripheral sensory neuropathy. Does not replace professional clinical evaluation.

## Clinical Evidence

Evidence includes a literature study (Birke and Rolfsen, Diabetes Care 1998) evaluating a self-administered sensory testing tool. The study assessed the ability of the tool to identify patients at risk for diabetes-related foot problems and determined inter-rater reliability between patient and provider sensory evaluations.

## Technological Characteristics

Mechanical esthesiometer; polyester filament; Semmes-Weinstein number 5.07; 10-gram force application (range 8.5-11.5g); handheld form factor; non-powered; no software or connectivity.

## Regulatory Identification

An esthesiometer is a mechanical device which usually consists of a single rod or fiber which is held in the fingers of the physician or other examiner and which is used to determine whether a patient has tactile sensitivity.

## Predicate Devices

- Medical Monofilament Sensory Testing Filament

## Submission Summary (Full Text)

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Public Health Service

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

January 14, 2015

Medical Monofilament Manufacturing % Susan Hamann Consultant Alvamed 21 Phillip Ave Burlington, Massachusetts 01803

Re: K143068

Trade/Device Name: Fit2Walk Monofilament Sensory Screening Tool Regulation Number: 21 CFR 882.1500 Regulation Name: Esthesiometer Regulatory Class: Class I Product Code: GXB Dated: October 22, 2014 Received: October 31, 2014

Dear Ms. Hamann,

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. Iisting 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 

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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 devicerelated 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 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" (21 CFR 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, PhD, MS 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) K143068

Device Name

Fit2Walk Monofilament Sensory Screening Tool

#### Indications for Use (Describe)

The Fit2Walk Monofilament Sensory Screening Tool is intended to determine whether a person with diabetes has the presence of an adequate level of protective sensation in their feet as indicated by having enough tactile sensitivity in order to perceive 10 grams of force against the skin of their feet.

It is indicated for use by adult Diabetic patients on a periodic basis to evaluate changes in sensory perception in the feet due to Diabetic peripheral sensory neuropathy. This device is not to be considered a replacement for routine sensory evaluation by a health care provider.

| Type of Use (Select one or both, as applicable) |  |
|-------------------------------------------------|--|
|-------------------------------------------------|--|

Prescription Use (Part 21 CFR 801 Subpart D)

|X | Over-The-Counter Use (21 CFR 801 Subpart C)

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Image /page/3/Picture/0 description: The image shows a stylized letter "M" with an arc above it. The "M" is bold and black, and the arc is a thin black line. The arc is centered above the "M" and curves upwards. The image is simple and graphic, with a focus on the letter "M".

### MEDICAL MONOFILAMENT MANUFACTURING

121-2 CAMELOT DRIVE, PLYMOUTH, MA, USA 02360

P: 508.746.7877

F: 508.746.540

# 510(k) Summary

This summary of 510(k) safety and effectiveness information is being submitted in accordance with the requirements of 21 CFR 807.92.

January 6, 2015

#### Name of Submitter:

Medical Monofilament Manufacturing 121 Camelot Drive Plymouth, MA 02360

Phone: 508-746-7877 Fax: 508-746-5409

Corresponding Official: Michelle Hardiman CEO

Device Proprietary Name: Fit2Walk Monofilament Sensory Screening Tool

Common Name: Sensory Screening Tool

Classification Name: Esthesiometer (21 CFR 882.1500, Product Code GXB)

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# Substantial Equivalence:

The Fit2Walk Monofilament Sensory Screening Tool is substantially equivalent to the following device that is currently legally marketed: Medical Monofilament Sensory Testing Filament.

# Device Description:

Monofilaments are devices that contain a small strand of filament attached to a handle. When placed upon the skin, they apply a certain amount of pressure before the filament bends or buckles. The point at which the filament bends or buckles is rated in grams of force. Monofilaments are primarily used to check for a certain level of sensation present in the skin in different parts of the body. The ten gram monofilament has been widely accepted by the medical community to evaluate the level of sensation in the skin of the feet for evaluating severe diabetic peripheral sensory neuropathy or LOPS (loss of protective sensation) of the feet.

# Intended Use/Indications for Use:

The Fit2Walk Monofilament Sensory Screening Tool is intended to be used to determine whether a person with diabetes has the presence of an adequate level of protective sensation in their feet as indicated by having enough tactile sensitivity in order to perceive 10 grams of force against the skin of their feet.

It is indicated for use by adult Diabetic patients on a periodic basis to evaluate changes in sensory perception in the feet due to Diabetic peripheral sensory neuropathy. This device is not to be considered a replacement for routine sensory evaluation by a health care provider.

| Feature      | Fit2Walk Monofilament<br>Sensory Screening Tool                                                                                                                                                                                                                                                                                                                                                                                  | Medical Monofilament Sensory<br>Testing Filament.                                                                                                                                                                                                                                                                                                                         |
|--------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Intended Use | The Fit2Walk Monofilament<br>Sensory Screening Tool is<br>intended to be used to<br>determine whether a person<br>with diabetes has the presence<br>of an adequate level of<br>protective sensation in their<br>feet as indicated by having<br>enough tactile sensitivity in<br>order to perceive 10 grams of<br>force against the skin of their<br>feet.<br>It is indicated for use by adult<br>Diabetic patients on a periodic | The Medical Monofilament Sensory<br>Testing Filament is intended to be<br>used by medical personnel to<br>determine whether a person with<br>diabetes has the presence of an<br>adequate level of protective<br>sensation in their feet as indicated<br>by having enough tactile sensitivity<br>in order to perceive 10 grams of<br>force against the skin of their feet. |

Comparison of Features for the Fit2Walk Monofilament Sensory Screening Tool and the Medical Monofilament Sensory Testing Monofilament.

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| basis to evaluate changes in<br>sensory perception in the feet<br>due to Diabetic peripheral<br>sensory neuropathy. This<br>device is not to be considered a<br>replacement for routine<br>sensory evaluation by a health |                                                                                                                         |                                                                                |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------|
| care provider.                                                                                                                                                                                                            |                                                                                                                         |                                                                                |
| Filament material                                                                                                                                                                                                         | Polyester                                                                                                               | Polyester                                                                      |
| Semmes-Weinstein number<br>(firmness)                                                                                                                                                                                     | 5.07                                                                                                                    | 5.07                                                                           |
| Force Range                                                                                                                                                                                                               | 10 gram (Range 8.5-11.5)                                                                                                | 10 gram (Range 8.5-11.5)                                                       |
| Availability                                                                                                                                                                                                              | The Fit2Walk kit will initially<br>be available online, but may<br>also be available at retail<br>stores in the future. | Available to medical<br>practitioners online at<br>www.medicalmonofilament.com |

# Performance Data:

Included in this submission is a report from Diabetes Care, Vol. 21, Number 1, January 1998, "Evaluation of a Self-Administered Sensory Testing Tool to Identify Patients at Risk of Diabetes-Related Foot Problems" written by James A Birke and Robert Rolfsen. The paper describes a study concerning the use of a self-administered sensory testing tool designed to identify individuals at risk for diabetes-related foot problems and determine the inter-rater reliability between patient and provider sensory evaluations.

## Conclusion:

The Fit2Walk Monofilament Sensory Screening Tool is substantially equivalent to the Medical Monofilament Sensory Testing Filament.

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**Source:** [https://fda.innolitics.com/submissions/NE/subpart-b%E2%80%94neurological-diagnostic-devices/GXB/K143068](https://fda.innolitics.com/submissions/NE/subpart-b%E2%80%94neurological-diagnostic-devices/GXB/K143068)

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