K Number
K160141
Device Name
miraDry System
Manufacturer
Date Cleared
2016-10-31

(284 days)

Product Code
Regulation Number
878.4400
Panel
SU
Reference & Predicate Devices
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
Intended Use

The miraDry System MD4000 is indicated for use in the treatment of primary axillary hyperhidrosis plus unwanted underarm hair removal, and permanent reduction of underarm hair of all colors for Fitzpatrick skin types I - IV.

Permanent hair reduction is defined as long-term, stable reduction in the number of hairs regrowing when measured at 6, 9 and 12 months after the completion of a treatment regime.

When used for the treatment of primary axillary hyperhidrosis, the miraDry System MD4000 may reduce underarm odor.

Device Description

The miraDry MD4000 System is a microwave device designed to heat tissue located at the dermal- hypodermal interface where the axillary sweat and odor glands and hair bulbs reside using a surface contact applicator. The miraDry MD4000 System consists of: the MD4000-MC Console; the MD4000-HP miraDry Handpiece; and a disposable, sterile MD4000-BT miraDry bioTip that snaps onto the Handpiece to provide a sterile protective cover.

As described in K150419 and prior submissions, the miraDry MD4000 System also includes Class I components/accessories. The MD4000-TS template system is a required component for the miraDry treatment as well as the MD4000-PK priming kit and the MD4000-BT-DE demonstration bioTip. The MD4000-PK priming kit and the non-sterile "demo" bioTip are required when the system is initially set up at a user facility. Optional accessories include an armrest and disposable ice packs.

The MD4000-MC Console is a software-driven device which contains circuit boards, a microwave generator, integrated vacuum and cooling systems, and an integrated touch-screen user interface.

The non-invasive miraDry Handpiece is specifically designed to deliver microwave energy to the skin at specified frequency and power levels. The proximal end of the Handpiece has a cable bundle and a console connector that supplies the energy and cooling to the Handpiece. The distal end has a sterile, disposable barrier, the miraDry bioTip, which contacts the patient.

AI/ML Overview

The miraDry System MD4000 is indicated for use in the treatment of primary axillary hyperhidrosis plus unwanted underarm hair removal, and permanent reduction of underarm hair of all colors for Fitzpatrick skin types I - IV.

Here's an analysis of the provided text regarding acceptance criteria and the supporting study:


1. Table of Acceptance Criteria and Reported Device Performance

The document does not explicitly state pre-defined acceptance criteria in terms of specific thresholds for success. Instead, it defines primary and secondary endpoints for the clinical trial and then reports the study results against these. The "acceptance criteria" are implicitly understood as achieving statistical significance for the primary endpoint.

Endpoint CategorySpecific EndpointAcceptance Criteria (Implicit from Primary Endpoint)Reported Device PerformanceMet Criteria?
Primary EndpointPercentage of subjects with at least a 2-point lower odor score in the treated underarm compared to the untreated underarm (responders) when assessed 1 month after treatment.Statistically significant (p

§ 878.4400 Electrosurgical cutting and coagulation device and accessories.

(a)
Identification. An electrosurgical cutting and coagulation device and accessories is a device intended to remove tissue and control bleeding by use of high-frequency electrical current.(b)
Classification. Class II.