K Number
K153696
Device Name
Chattanooga Revolution Wireless
Manufacturer
Date Cleared
2016-04-14

(113 days)

Product Code
Regulation Number
890.5850
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
The Chattanooga Revolution Wireless is a clinical electrotherapy device intended for use under the supervision of a Healthcare Professional. Indications for Use: As an NMES device, indications are for the following conditions: - Retarding or preventing disuse atrophy - Maintaining or increasing range of motion - Re-educating muscles - Relaxation of muscle spasms - Increasing local blood circulation - Prevention of venous thrombosis of the calf muscles immediately after surgery As a TENS device, indications are for the following conditions: - Symptomatic relief and management of chronic, intractable pain - Post-surgical and post-trauma acute pain As a pulsed mode device, indications are for the following conditions: - Relaxation of muscle spasm - Increasing local blood circulation - Retardation or prevention of disuse atrophy - Maintenance or increase of range of motion
Device Description
The Chattanooga Revolution Wireless is a neuromuscular electrical stimulation (NMES) device, which stimulates nerve fibers by means of electrical impulses transmitted by electrodes. The electrical pulses generated by the Chattanooga "Revolution Wireless stimulate motor nerves to stimulate a muscular response. Depending on the parameters of the electrical impulses (pulse frequency, duration of contraction, duration of rest, and total session duration), different types of muscle work can be imposed on the stimulated muscles. The device system is made up of a remote control, 4 stimulation modules, and electrodes, which are stored and shipped within the docking station which is used to recharge the remote and the modules. The docking station is powered by an AC-DC adapter. The remote control is the interface between the stimulation modules and the user. It sends and receives information to and from the modules via a wireless network. The remote control allows the user to navigate through the user interface (UI), select stimulation program or objectives, set desired options and control the four (4) module intensities independently. The remote control is powered by a rechargeable battery. The Chattanooga® Revolution Wireless stimulation module set is composed of 4 independent stimulation modules that are controlled via the remote control by a wireless connection. Each module is composed of two "pods" (1 battery "pod" and one stimulation "pod") linked by an electrical connection (cable). Two proprietary standard snap gel electrodes are also needed to connect each "pod" to the body. The modules are powered by a Lithium Polymer (LiPo) rechargeable 3.7[V] / ≥ 450 [mAh] battery. The docking station is the part on which all the other components (modules, remote and accessories) are stored when the Chattanooga Revolution Wireless system is not in use. The docking is continuously connected to an AC wall socket and it allows charging simultaneously the 4 stimulation modules and the remote control. The docking main part is intended to be fixed and not for transportation purposes, but the tablet may be removed and used as a portable charging station for the remote and modules. The docking station includes a removable tray where the user can store electrodes, quick start guide, the remote and modules for transportation. The wireless protocol of the Chattanooga® Revolution Wireless Device is a proprietary design of a Radio-Frequency protocol operating the 2.4 GHz ISM band. It is used to 1) Send particular information from remote control to stimulation modules (stimulation settings) 2) Send particular information from stimulation modules to remote control, like current stimulation level and stimulation module subsystem status, 3) Transfer binary data to stimulation modules, and 4) Allow synchronization from stimulation modules to remote control clocks.
More Information

No
The description focuses on standard electrical stimulation technology and wireless communication protocols, with no mention of AI or ML capabilities for data analysis, pattern recognition, or adaptive stimulation.

Yes
The device is clearly indicated for therapeutic purposes, including pain relief, muscle re-education, prevention of disuse atrophy, and increased circulation – all of which are medical treatments.

No

The device description and indications for use clearly state its function as an electrotherapy device for therapeutic purposes (e.g., muscle re-education, pain relief), not for diagnosing conditions.

No

The device description explicitly details hardware components including a remote control, stimulation modules, electrodes, and a docking station, all of which are essential for the device's function. While it includes software, it is not solely software.

Based on the provided information, the Chattanooga Revolution Wireless is not an In Vitro Diagnostic (IVD) device.

Here's why:

  • IVD Definition: In Vitro Diagnostic devices are used to examine specimens (like blood, urine, or tissue) taken from the human body to provide information for the diagnosis, treatment, or prevention of disease.
  • Chattanooga Revolution Wireless Function: The description clearly states that the Chattanooga Revolution Wireless is a clinical electrotherapy device that stimulates nerve fibers and muscles using electrical impulses transmitted by electrodes applied to the body. It is used for therapeutic purposes like muscle re-education, pain relief, and increasing circulation.
  • No Specimen Analysis: The device does not involve the collection or analysis of any biological specimens from the patient.

Therefore, the Chattanooga Revolution Wireless falls under the category of a therapeutic medical device, not an In Vitro Diagnostic device.

N/A

Intended Use / Indications for Use

The Chattanooga Revolution Wireless is a clinical electrotherapy device intended for use under the supervision of a Healthcare Professional.

Indications for Use:

As an NMES device, indications are for the following conditions:

  • Retarding or preventing disuse atrophy
  • Maintaining or increasing range of motion
  • Re-educating muscles
  • Relaxation of muscle spasms
  • Increasing local blood circulation
  • Prevention of venous thrombosis of the calf muscles immediately after surgery

As a TENS device, indications are for the following conditions:

  • Symptomatic relief and management of chronic, intractable pain
  • Post-surgical and post-trauma acute pain

As a pulsed mode device, indications are for the following conditions:

  • Relaxation of muscle spasm
  • Increasing local blood circulation
  • Retardation or prevention of disuse atrophy
  • Maintenance or increase of range of motion

Product codes (comma separated list FDA assigned to the subject device)

IPF, GZJ

Device Description

The Chattanooga Revolution Wireless is a neuromuscular electrical stimulation (NMES) device, which stimulates nerve fibers by means of electrical impulses transmitted by electrodes. The electrical pulses generated by the Chattanooga "Revolution Wireless stimulate motor nerves to stimulate a muscular response. Depending on the parameters of the electrical impulses (pulse frequency, duration of contraction, duration of rest, and total session duration), different types of muscle work can be imposed on the stimulated muscles.

The device system is made up of a remote control, 4 stimulation modules, and electrodes, which are stored and shipped within the docking station which is used to recharge the remote and the modules. The docking station is powered by an AC-DC adapter.

The remote control is the interface between the stimulation modules and the user. It sends and receives information to and from the modules via a wireless network. The remote control allows the user to navigate through the user interface (UI), select stimulation program or objectives, set desired options and control the four (4) module intensities independently. The remote control is powered by a rechargeable battery.

The Chattanooga® Revolution Wireless stimulation module set is composed of 4 independent stimulation modules that are controlled via the remote control by a wireless connection. Each module is composed of two "pods" (1 battery "pod" and one stimulation "pod") linked by an electrical connection (cable). Two proprietary standard snap gel electrodes are also needed to connect each "pod" to the body. The modules are powered by a Lithium Polymer (LiPo) rechargeable 3.7[V] / ≥ 450 [mAh] battery.

The docking station is the part on which all the other components (modules, remote and accessories) are stored when the Chattanooga Revolution Wireless system is not in use. The docking is continuously connected to an AC wall socket and it allows charging simultaneously the 4 stimulation modules and the remote control. The docking main part is intended to be fixed and not for transportation purposes, but the tablet may be removed and used as a portable charging station for the remote and modules. The docking station includes a removable tray where the user can store electrodes, quick start guide, the remote and modules for transportation.

The wireless protocol of the Chattanooga® Revolution Wireless Device is a proprietary design of a Radio-Frequency protocol operating the 2.4 GHz ISM band. It is used to

  1. Send particular information from remote control to stimulation modules (stimulation settings)
  2. Send particular information from stimulation modules to remote control, like current stimulation level and stimulation module subsystem status,
  3. Transfer binary data to stimulation modules, and
  4. Allow synchronization from stimulation modules to remote control clocks.

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

Not Found

Indicated Patient Age Range

Adult Population

Intended User / Care Setting

Physician office, physical therapy Clinic, Hospital, Nursing Home, Post Acute Care, Chiropractic Clinic

Description of the training set, sample size, data source, and annotation protocol

Not Found

Description of the test set, sample size, data source, and annotation protocol

Not Found

Summary of Performance Studies (study type, sample size, AUC, MRMC, standalone performance, key results)

Electrical Safety and Electromagnetic Compatibility: The Chattanooga® Revolution Wireless was tested and found to comply with recognized standards for electrical safety and electromagnetic compatibility.

FCC Radio Frequency Testing: The Chattanooga® Revolution Wireless was tested to FCC requirements and found to comply with the requirements of 47 CFR 15.249.

Software Verification: The device's software was verified in accordance with the requirements of FDA's guidance document: General Principles of Software Validation, January 11, 2002. The software testing demonstrated that the software meets its design requirements.

Usability/Human Factors Testing: Usability/Human Factors testing was performed, which demonstrated that the established requirements for usability were met, and the device's design is appropriate for the intended users and use environment. The result of this study substantiates the acceptability of the use-related risks identified during the risk assessment activities.

Wireless Coexistence Testing: The performance of Chattanooga® Revolution Wireless was evaluated in an environment with other Chattanooga® Revolution Wireless device and with other types of 2.4 GHz wireless devices (Bluetooth and Wi-Fi). The device met all specified requirements.

Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)

Not Found

Predicate Device(s): If the device was cleared using the 510(k) pathway, identify the Predicate Device(s) K/DEN number used to claim substantial equivalence and list them here in a comma separated list exactly as they appear in the text. List the primary predicate first in the list.

Vectra Neo (K132284)

Reference Device(s): Identify the Reference Device(s) K/DEN number and list them here in a comma separated list exactly as they appear in the text.

Compex Wireless USA (K143551)

Predetermined Change Control Plan (PCCP) - All Relevant Information for the subject device only (e.g. presence / absence, what scope was granted / cleared under the PCCP, any restrictions, etc).

Not Found

§ 890.5850 Powered muscle stimulator.

(a)
Identification. A powered muscle stimulator is an electrically powered device intended for medical purposes that repeatedly contracts muscles by passing electrical currents through electrodes contacting the affected body area.(b)
Classification. Class II (performance standards).

0

Image /page/0/Picture/0 description: The image shows the logo for the Department of Health & Human Services - USA. The logo is circular and contains the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. In the center of the circle is an abstract image of three faces in profile, stacked on top of each other.

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

April 14, 2016

DJO, LLC Lorri Trotter Regulatory Affairs Manager 1430 Decision Street Vista. California 92081

Re: K153696

Trade/Device Name: Chattanooga Revolution Wireless Regulation Number: 21 CFR 890.5850 Regulation Name: Powered Muscle Stimulator Regulatory Class: Class II Product Code: IPF; GZJ Dated: March 11, 2016 Received: March 14, 2016

Dear Ms. Trotter:

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. 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

1

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 (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,

Michael J.Hoffmann -A

  • for Carlos L. Peña. PhD, MS Director Division of Neurological and Physical Medicine Devices Office of Device Evaluation Center for Devices and Radiological Health
    Enclosure

2

Indications for Use

510(k) Number (if known) K153696

Device Name Chattanooga Revolution Wireless

Indications for Use (Describe)

The Chattanooga Revolution Wireless is a clinical electrotherapy device intended for use under the supervision of a Healthcare Professional.

Indications for Use:

As an NMES device, indications are for the following conditions:

  • Retarding or preventing disuse atrophy
  • Maintaining or increasing range of motion
  • Re-educating muscles
  • Relaxation of muscle spasms
  • Increasing local blood circulation
  • Prevention of venous thrombosis of the calf muscles immediately after surgery

As a TENS device, indications are for the following conditions:

  • Symptomatic relief and management of chronic, intractable pain
  • Post-surgical and post-trauma acute pain

As a pulsed mode device, indications are for the following conditions:

  • Relaxation of muscle spasm
  • Increasing local blood circulation
  • Retardation or prevention of disuse atrophy
  • Maintenance or increase of range of motion
Type of Use (Select one or both, as applicable)
-------------------------------------------------

X Prescription Use (Part 21 CFR 801 Subpart D)

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

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510(k) Summary

Submitted by:DJO, LLC
1430 Decision Street
Vista, CA 92081
Contact Person:Lorri Trotter
Regulatory Affairs Manager
(760)734-3049
Date Summary Prepared:April 11, 2016
Trade Name:Chattanooga® Revolution Wireless
Classification Name:Powered muscle stimulator (21 CFR 890.5850);
Transcutaneous electrical nerve stimulator for pain relief
(21 CFR 5890)
Product Code:IPF, GZJ
Regulatory Class:Class II
Predicate Device:Vectra Neo (K132284)

Device Description:

The Chattanooga Revolution Wireless is a neuromuscular electrical stimulation (NMES) device, which stimulates nerve fibers by means of electrical impulses transmitted by electrodes. The electrical pulses generated by the Chattanooga "Revolution Wireless stimulate motor nerves to stimulate a muscular response. Depending on the parameters of the electrical impulses (pulse frequency, duration of contraction, duration of rest, and total session duration), different types of muscle work can be imposed on the stimulated muscles.

The device system is made up of a remote control, 4 stimulation modules, and electrodes, which are stored and shipped within the docking station which is used to recharge the remote and the modules. The docking station is powered by an AC-DC adapter.

The remote control is the interface between the stimulation modules and the user. It sends and receives information to and from the modules via a wireless network. The remote control allows the user to navigate through the user interface (UI), select stimulation program or objectives, set desired options and control the four (4) module intensities independently. The remote control is powered by a rechargeable battery.

The Chattanooga® Revolution Wireless stimulation module set is composed of 4 independent stimulation modules that are controlled via the remote control by a wireless connection. Each module is composed of two "pods" (1 battery "pod" and one stimulation "pod") linked by an

4

electrical connection (cable). Two proprietary standard snap gel electrodes are also needed to connect each "pod" to the body. The modules are powered by a Lithium Polymer (LiPo) rechargeable 3.7[V] / ≥ 450 [mAh] battery.

The docking station is the part on which all the other components (modules, remote and accessories) are stored when the Chattanooga Revolution Wireless system is not in use. The docking is continuously connected to an AC wall socket and it allows charging simultaneously the 4 stimulation modules and the remote control. The docking main part is intended to be fixed and not for transportation purposes, but the tablet may be removed and used as a portable charging station for the remote and modules. The docking station includes a removable tray where the user can store electrodes, quick start guide, the remote and modules for transportation.

The wireless protocol of the Chattanooga® Revolution Wireless Device is a proprietary design of a Radio-Frequency protocol operating the 2.4 GHz ISM band. It is used to

  1. Send particular information from remote control to stimulation modules (stimulation settings)

  2. Send particular information from stimulation modules to remote control, like current stimulation level and stimulation module subsystem status,

  3. Transfer binary data to stimulation modules, and

  4. Allow synchronization from stimulation modules to remote control clocks.

Indications for Use:

The Chattanooga Revolution Wireless is a clinical electrotherapy device intended for use under the supervision of a Healthcare Professional.

Indications for Use:

As an NMES device, indications are for the following conditions:

  • Retarding or preventing disuse atrophy -
  • -Maintaining or increasing range of motion
  • Re-educating muscles -
  • Relaxation of muscle spasms -
  • -Increasing local blood circulation
  • Prevention of venous thrombosis of the calf muscles immediately after surgery -

As a TENS device, indications are for the following conditions:

  • Symptomatic relief and management of chronic, intractable pain -
  • Post-surgical and post-trauma acute pain -
  • As a pulsed mode device, indications are for the following conditions:
    • Relaxation of muscle spasm -
    • Increasing local blood circulation -
    • -Retardation or prevention of disuse atrophy
    • Maintenance or increase of range of motion -

Programs:

5

The Chattanooga Revolution Wireless provides 14 programs: Trigger Point, Acute Pain, Chronic Pain, Muscle Pump Cycle, Muscle Pump Continuous, Increase ROM (Range of Motion), Decrease Muscle Tone, Fast Twitch Function, Muscle Atrophy, Slow Twitch Function, VMS-FR Dynamic 2 Channel, VMS-FR Dynamic 4 Channel, VMS-FR Static 2 Channel, and VMS-FR Static 4 Channel.

Comparison to the Predicate Device: Includes Table

The indications for use for the Revolution Wireless USA are a subset of those for the predicate device the Vectra Neo Clinical Therapy System. The predicate device has additional features, functions, and applications that are not included in the Revolution Wireless. Therefore, we are comparing the Revolution Wireless only to those functions of the predicate that are applicable.

The technological characteristics of the two devices are very similar for the comparable functions, but there are a few differences. The following table summarizes the similarities and differences between the technological characteristics of the two devices. The power sources of the two devices differ (Revolution is battery powered) and output specifications differ slightly between the two devices, but the Chattanooga Revolution Wireless conforms to required standards, and small differences in output do not raise any issues of safety or effectiveness. The Revolution Wireless differs from the predicate in that it communicates wirelessly with the stimulation modules, but the design of the wireless feature is identical to that of the Compex Wireless USA (K143551).

Basic Device Characteristics – Comparison with Predicate Device
CharacteristicNew DevicePredicate DeviceSimilar/ Different
510(K) Number
Device Name, ModelChattanooga
Wireless PROK132284
Vectra Neo Clinical
Therapy SystemDifferent
ManufacturerDJO, LLCDJO, LLCSimilar
Prescription/OTCPrescriptionPrescriptionSimilar
Where usedPhysician office,
physical therapy
Clinic, Hospital,
Nursing Home, Post
Acute Care,
Chiropractic ClinicPhysician office,
physical therapy
Clinic, Hospital,
Nursing Home, Post
Acute Care,
Chiropractic ClinicSimilar
Target populationAdult PopulationAdult PopulationSimilar
Anatomical libraryYesYesSimilar
Audio IndicatorYesYesSimilar
Connection of device to electrodesStimulation Module
is directly connected
to the custom male
SNAP assembled in
the electrode. User
Interface (LCD and
buttons) is physically
separated (RemoteWith cables
including pins to
connect to electrodes
pins. There is 1 cable
per channel with a
maximum of 4
channelsDifferent
CharacteristicNew DevicePredicate DeviceSimilar/Different
Control) and
communicates
wirelessly with up to
four (4) stimulation
modules.
Stimulation safety
remains fully
managed by
Stimulation Module
electronic circuit
itself.
Power Source (s)Rechargeable battery100-240V~, 2.6-
1.0A, 47-63HzDifferent
Method of Line Current IsolationNA
Battery operated
deviceIndependent
transformer isolatedDifferent
Electrical TypeNA
Battery operated
deviceType BFDifferent
Patient Leakage Current - Normal
Condition (μΑ)NA
Battery operated
device