SKINTACT ECG ELECTRODES WITH KL 02 LIQUID GEL

K024247 · Leonhard Lang GmbH · DRX · Jan 16, 2003 · Cardiovascular

Device Facts

• Record ID: K024247
• Device Name: SKINTACT ECG ELECTRODES WITH KL 02 LIQUID GEL
• Applicant: Leonhard Lang GmbH
• Product Code: DRX · Cardiovascular
• Decision Date: Jan 16, 2003
• Decision: SESE
• Submission Type: Special
• Regulation: 21 CFR 870.2360
• Device Class: Class 2

Intended Use

Skintact ECG electrodes are designed for use in general electrocardiographic procedures where ECG monitoring is deemed necessary and is ordered by a physician. Such procedures include in particular patient ECG surveillance and ECG diagnosis recording. Skintact ECG electrodes are non-sterile and are to be used on intact (uninjured) skin.

Device Story

Skintact ECG electrodes are disposable, self-adhesive, single-use snap electrodes used for ECG monitoring and diagnostic recording. Device consists of stainless steel stud, ABS sensor element coated with silver/silver chloride, and KL 02 liquid conductive gel. Electrodes are applied to patient skin by healthcare providers in clinical settings. Device functions as passive interface, capturing electrical signals from skin surface for transmission to ECG monitoring equipment. Performance verified through 48-hour Holter monitoring wear tests, confirming signal stability, adhesion, and lack of skin irritation. Benefits include reliable signal acquisition for cardiac surveillance and diagnosis.

Clinical Evidence

Bench testing per ANSI/AAMI EC 12:2000 confirmed electrical performance (AC impedance, DC offset, defibrillation recovery, noise) within limits. Biocompatibility testing (cytotoxicity, irritation, sensitization) showed no adverse results. Clinical evidence included 48-hour Holter monitoring wear tests on volunteers; physician review confirmed no skin irritation, no signal deterioration, and excellent adhesion during daily activities/sports. Comparison of ECG traces between KL 02 and QR gel electrodes demonstrated equivalence.

Technological Characteristics

Disposable, non-sterile, self-adhesive snap electrodes. Materials: stainless steel stud, ABS sensor element, silver/silver chloride coating, KL 02 liquid conductive gel. Complies with ANSI/AAMI EC 12:2000 for electrical performance. Shelf-life: 24 months.

Indications for Use

Indicated for patients requiring ECG monitoring or diagnostic recording. For use on intact, uninjured skin only. Prescription use.

Regulatory Classification

Identification

An electrocardiograph electrode is the electrical conductor which is applied to the surface of the body to transmit the electrical signal at the body surface to a processor that produces an electrocardiogram or vectorcardiogram.

Special Controls

*Classification.* Class II (special controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 870.9. The special control for this device is the FDA guidance document entitled “Class II Special Controls Guidance Document: Electrocardiograph Electrodes.” See § 870.1(e) for availability information of guidance documents.

Predicate Devices

• Skintact ECG Electrodes with QR liquid gel (K982521)

Submission Summary (Full Text)

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K024247

# 510(k) Summary

JAN 1 6 2003

# SUBMITTED ON BEHALF OF:

| Company Name: | Leonhard Lang GmbH |
|---------------|-------------------------------------------|
| Address: | Archenweg 56<br>6010 Innsbruck<br>Austria |
| Telephone: | ++ 43 / 512 / 33 4 25 7 |
| Fax: | ++ 43 / 512 / 39 22 10 |

by:

Elaine Duncan, MS.M.E., RAC
President, Paladin Medical, Inc.
PO Box 560
Stillwater, MN 55082

| Telephone: | 715-549-6035 |
|------------|--------------|
| Fax: | 715-549-5380 |

| CONTACT PERSON: | Elaine Duncan |
|-----------------|-------------------|
| DATE PREPARED: | December 18, 2002 |

| Trade Name: | Skintact ^® ECG Electrode |
|----------------------|-------------------------------------|
| Common Name: | Disposable ECG Electrodes |
| Classification Name: | Electrocardiograph (ECG) electrode |

SUBSTANTIALLY EQUIVALENT TO: Skintact® ECG Electrodes with KL 02 liquid gel are substantially equivalent to the Skintact® ECG Electrodes with QR liquid gel (the manufacter's predicate device cleared under K982521)

DESCRIPTION of the DEVICE: Skintact® ECG Electrodes (and as also to be offered for sale under various private label tradenames) will be offered with KL 02 liguid gel. Just like the QR liquid gel electrodes, KL 02 liquid gel electrodes are self-adhesive, non-sterile, single use disposable snap electrodes. The KL 02 liquid gel electrodes are identical in size, shape and configuration to the QR liquid gel Skintact ECG electrodes currently marketed by Leonhard Lang, GmbH.

All electrode configurations include a stainless steel stud to guarantee an unimpaired performance during the shelf-life of the product. All electrodes include an ABS sensor element coated with silver. The silver layer is either completely or partially (in the areas in contact with the conductive gel) covered with a silver chloride layer. This is the same construction as the current Skintact® ECG electrode using QR liquid gel conducting media.

#### INDICATIONS FOR USE:

Skintact ECG electrodes are designed for use in general electrocardiographic procedures where ECG monitoring is deemed necessary and is ordered by a physician. Such procedures include in particular patient ECG surveillance and ECG diagnosis recording. Skintact ECG electrodes are non-sterile and are to be used on intact (uninjured) skin. (NO CHANGE to ORIGINAL INDICATION for USE)

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## 510(k) Summary-Continued

### SUMMARY of TESTING:

Biocompatibility testing confirms the materials are biocompatible and the change does not introduce new risks. The following testing showed no adverse results: Cytotoxicity; Skin Irritation; Sensitization.

The ANSI/AAMI EC 12:2000 "Disposable ECG electrodes" was used to define the requirements for Skintact ECG Electrodes with KL 02 liquid gel. All electrical tests are according to ANSI/AAMI EC 12:2000. A certification to conformance EC12:2000 with this standard has been provided. The testing conducted was: AC impedance; DC offset voltage; Defibrillation overload recovery; Combined offset instability and internal noise; Bias current tolerance.

The shelf life of the electrodes with KL 02 liquid gel was tested in real-time aging.

Leonhard Lang has experience for about 20 years of using the current packaging and this ensures all requirements for the 24 months shelf-life of the electrodes. No differences were required for packaging of the KL 02 liquid gel electrodes compared to the predicate electrodes.

The results of these tests confirm that the shelf-life of Leonhard Lang Skintact ECG Electrodes with KL 02 liquid gel is well inside the limits defined in ANSVAAMI EC12-2000, both for the first test and the retain samples with real-time aged electrodes. Thus the conclusion that the electrical performance of the KL 02 liquid gel electrodes will stay within the limits during their shelf-life of 24 months. The comparison with the predicate device and the data from the KL 02 liquid gel electrodes shows similar results. The difference is negligible in the limits defined in ANSI/AAMI EC12-2000. Therefore electrical performance of the predicate device and KL 02 liquid gel electrodes is equivalent.

Clinical data: The potential effect of material change to the conducting signal was evaluated by repeating the clinical trace testing per the FDA guidance on the KL 02 liquid gel and determined that the KL 02 liquid gel performs the same. Comparing the ECG traces between KL 02 liquid gel electrodes and QR liquid gel electrodes demonstrate that KL 02 liquid gel electrodes are equivalent to the QR liquid gel electrodes. Three wear test reports for Holter monitoring electrodes used for 48 hours were provided. A physician reviewed the performance of the wear tests and examined for skin irritation. The tests confirm that the performance of electrodes is quite good and that wearing of the electrodes does not cause any skin problems for the volunteers. During a time of 48 hours there was no deterioration of electrical performance and the gel did not dry out.

The electrodes were not replaced during this time and did not show any displacement; although the volunteers worked and participated in sports as usual demonstrating the adhesion was also very good. (No change to adhesive formulation was made.)

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#### DEPARTMENT OF HEALTH & HUMAN SERVICES

Image /page/2/Picture/1 description: The image is a black and white logo for the U.S. Department of Health & Human Services. The logo features a stylized eagle with three curved lines representing its body and wings. The eagle is facing to the right. The text "DEPARTMENT OF HEALTH & 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

JAN 1 6 2003

Leonhard Lang GmbH c/o Ms. Elaine Duncan Paladin Medical, Inc. P.O. Box 560 Stillwater, MN 55082-0560

Re: K024247

Skintact® ECG Tab Electrodes with KL 02 liquid gel Regulation Number: 21 CFR 870.2360 Regulation Name: Electrocardiograph Electrode Regulatory Class: Class II (two) Product Code: DRX Dated: December 18, 2002 Received: December 23, 2002

Dear Ms. Duncan:

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.

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.

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Page 2 -- Ms. Elaine Duncan

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 (OS) 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 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]. Additionally, for questions on the promotion and advertising of your device, 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 may be obtained 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/dsma/dsmamain.html

Sincerely vours.

Ndether

Bram D. Zuckerman, M.D. Director Division of Cardiovascular Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

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510(k) Number (if known)

Device Name:

Skintact® ECG Electrodes (with KL02 gel)

Indications for Use:

Skintact ECG electrodes are designed for use in general electrocardiographic procedures where ECG monitoring is deemed necessary and is ordered by a physician. Such procedures include in particular patient ECG surveillance and ECG diagnosis recording.

Skintact ECG electrodes are non-sterile and are to be used on intact (uninjured) skin.

> (Please Do Not Write Below This Line-Continue On Another Page If Needed) Concurrence of CDRH, Office of Device Evaluation (ODE)

Prescription Use

OR

Over -The-Counter Use

(Optional Format 1-2-96)

N. Deaton

510(k) Number K024247