RHYTHMLINK DISC ELECTRODES

K061148 · Rhythmlink International, LLC · GXY · May 10, 2006 · Neurology

Device Facts

• Record ID: K061148
• Device Name: RHYTHMLINK DISC ELECTRODES
• Applicant: Rhythmlink International, LLC
• Product Code: GXY · Neurology
• Decision Date: May 10, 2006
• Decision: SESE
• Submission Type: Traditional
• Regulation: 21 CFR 882.1320
• Device Class: Class 2
• Attributes: 3rd-Party Reviewed

Intended Use

The Rhythmlink Disc Electrodes are intended for non-invasive use with recording and monitoring equipment, (active and reference), of Electromyography (EMG), Electroencephalograph (EEG) and Evoked Potentials.

Device Story

Rhythmlink Disc Electrodes are non-invasive cutaneous electrodes used to acquire physiological signals for EEG, EMG, and Evoked Potentials monitoring. The device consists of a disc (silver, Ag/AgCl, gold-plated, or gold) permanently attached to a lead wire. The connection point is protected by heat shrink tubing or molded housing to prevent exposed wires and provide strain relief. Lead wires are insulated with PU, PVC, silicone, or Teflon and terminate in a DIN 42-802 compliant touch-proof connector. The electrodes are used by clinicians in a clinical setting to interface with external recording and monitoring equipment. The device captures electrical signals from the skin surface, which are transmitted to the monitoring system for clinical interpretation. The output assists healthcare providers in diagnosing or monitoring neurological and muscular conditions.

Clinical Evidence

No clinical data provided; bench testing only.

Technological Characteristics

Materials: Silver, Ag/AgCl, gold-plated, gold. Insulation: PU, PVC, silicone, Teflon. Connector: DIN 42-802 touch-proof. Form factor: Disc electrode with lead wire. Non-invasive. No software or active electronic components.

Indications for Use

Indicated for non-invasive use with recording and monitoring equipment for EMG, EEG, and Evoked Potentials. No specific patient population, age, or contraindications provided.

Regulatory Classification

Identification

A cutaneous electrode is an electrode that is applied directly to a patient's skin either to record physiological signals (e.g., the electroencephalogram) or to apply electrical stimulation.

Predicate Devices

• Neurolink TM (K942921)
• Neuro Supplies (K991772)

Submission Summary (Full Text)

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K061148

## 11. 510(k) Summary

| Company Name: | Rhythmlink International, LLC<br>1256 First Street South Extension<br>Columbia, SC 29209<br>Phone: [phone]<br>Owner Operator #: 9052354<br>Establishment Registration #: 1067162 |
|--------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Official Contact Person: | James M. Mewborne |
| | Engineering & Regulatory Manager |
| Summary Date: | May 12, 2005 |
| Device Identification: | Proprietary Device Name:<br>Rhythmlink Disc Electrodes |
| | Generic Device Name:<br>Cutaneous Electrodes |
| | Regulatory Class: Class II |
| | Classification Name: Cutaneous Electrodes |
| | Panel: 882 Neurological Devices, 882.1320<br>Cutaneous Electrodes |
| | Product Code: GXY |
| | This device has not been previously submitted to the FDA. |
| Predicate Device(s): | Neurolink TM 510(k) Number: K942921<br>Neuro Supplies 510(k) Number: K991772 |

#### Device Description:

Rhythmlink Disc Electrodes are non-invasive, Cutaneous devices are used in the acquisition of signals for the purpose of monitoring and recording Electroencephalograph (EEG), Electroencephalography (EEG), and Evoked Potentials (EP). Rhythmlink Disc electrodes have a disc manufactured with a variety of materials which include; silver, Ag/AgCL, ABS Molded Gold Plated and Gold. See appendix "C" for part numbers and descriptions. The disc is permanently adhered to a lead wire. The joint is then covered by a heat shrink tube or is molded into the disc so as not allow exposed lead wires and provide a strain relief. The lead wires are covered using polyurethane (PU), polyvinylchloride (PVC), Silicone or Teflon cover. The lead wires

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terminate using a molded touch proof connector that conforms to DIN 42-802 for electrical safety.

### Intended Use:

The Rhythmlink Disc Electrodes are intended for non-invasive use with recording and monitoring equipment, (active and reference), of Electromyography (EMG), Electroencephalograph (EEG) and Evoked Potentials.

This concludes the 510(k) summary.

Revised: 8/15/2005

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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 and Human Services. The logo features a stylized eagle with three lines representing its body and wings. The text "DEPARTMENT OF HEALTH AND HUMAN SERVICES. USA" is arranged in a circular pattern around the eagle.

#### Public Health Service

Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850

MAY 10 2006

Rhythmlink International, LLC c/o Mr. James M. Mewborne 1256 First Street South Extension Columbia, South Carolina 29209

Re: K061148

Trade/Device Name: Rhythmlink Disc Electrodes Regulation Name: Cutaneous Electrodes Regulatory Class: II Product Code: GXY Dated: April 24, 2006 Received: April 25, 2006

Dear Mr. Mewborne:

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 such 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. This letter will allow you to begin marketing your device as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally

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Page 2- Mr. Mark W. Sheehan

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 [phone]. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number [phone] or [phone] or at its Internet address http://www.fda.gov/cdrh/industry/support/index.html.

Sincerely yours,

Hulst Lemmer no

Mark N. Melkerson Director Division of General, Restorative and Neurological Devices Office of Device Evaluation Center for Devices and Radiological Health

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# 8. Indications for Use

510(k) Number (if known):

Rhythmlink Disc Electrodes Device Name:

:

Indications for Use: The Rhythmlink Disc Electrodes are intended for non-invasive use with recording and monitoring equipment, (active and reference), of Electromyography (EMG), Electroencephalograph (EEG) and Evoked Potentials.

AND/OR Prescription Use x (Part 21 CFR 801 Subpart D)

Over-The-Counter Use (21 CFR 807 Subpart C)

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)

Concurrence of CDRH, Office of Device Evaluation (ODE)

Hubert Lemmons

(Division Sign-Off) Division of General, Restorative, and Neurological Devices

510(k) Number k061148

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Revised &/19/2005