K140500 · Leonhard Lang GmbH · GEI · Jul 29, 2014 · General, Plastic Surgery
Device Facts
Record ID
K140500
Device Name
SKINTACT
Applicant
Leonhard Lang GmbH
Product Code
GEI · General, Plastic Surgery
Decision Date
Jul 29, 2014
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 878.4400
Device Class
Class 2
Attributes
Therapeutic, Pediatric
Indications for Use
Skintact Neutral Electrodes for Neonates are designed for use with electrosurgical generators for cutting and coagulation of human tissue of newborn or prematurely born patients of between approximately 1 and 11 lbs (0.45 kg and 4.99 kg).
Device Story
Skintact Neutral Electrodes for Neonates are single-use, non-sterile, disposable passive devices applied to intact skin. They function as dispersive return electrodes to complete the electrosurgical circuit between the generator, active electrode, and patient during monopolar electrosurgery. The device consists of a backing material, conductive layer, and a modified conductive hydrogel optimized for neonatal skin. Used in clinical settings by healthcare professionals, the electrode adheres to the patient to safely return high-frequency current, preventing thermal injury. The device contains no active electronics, software, or firmware.
Clinical Evidence
Bench testing only. Performance testing conducted per EN60601-2-2:2009, including thermal performance, contact impedance, and adhesion testing. Biocompatibility testing confirmed materials are safe for direct skin contact. No clinical data required.
Indicated for use with electrosurgical generators for cutting and coagulation of human tissue in newborn or prematurely born patients weighing between approximately 1 and 11 lbs (0.45 kg and 4.99 kg).
Regulatory Classification
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.
Predicate Devices
Leonhard Lang Skintact® Cool Contact Electrosurgical Grounding Plates (K063161)
Leonhard Lang Skintact® Cool Contact Electrosurgical Grounding Plates (K030362)
E7512 Premie REM PolyHesive II Patient Return Electrode (K994428)
Submission Summary (Full Text)
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# 510(K) SUMMARY
## JUL 2 9 2014
This 510(k) summary has been prepared in accordance with the requirements of 21CFR 807.92:
#### Submitted on behalf of:
.
| Company Name:<br>Address: | Leonhard Lang GmbH<br>Archenweg 56<br>6020 Innsbruck<br>Austria |
|------------------------------|------------------------------------------------------------------------------------------------------------------------------------------|
| Telephone:<br>Fax: | +43 512 334257<br>+43 512 392210 |
| Contact Person: | Elaine Duncan, M.S.M.E., RAC<br>President, Paladin Medical, Inc.<br>PO Box 560<br>Stillwater, MN 55082 |
| Telephone: | 715-549-6035 |
| Fax: | 715-549-5380 |
| Date prepared: | July 25, 2014 |
| Device Identification: | |
| TRADE NAME: | Skintact® Neutral Electrodes for Neonates<br>(and also to be offered for sale under various private label<br>tradenames) |
| COMMON NAME: | Neutral Electrodes |
| CLASSIFICATION NAME: | Electrosurgical cutting and coagulation device and<br>accessories |
| PRO CODE: | GEI |
| Regulation No.: | 21CFR 878.4400 |
| Classification: | Class II |
| SUBSTANTIALLY EQUIVALENT TO: | |
| K063161 | Leonhard Lang Skintact® Cool Contact Electrosurgical<br>Grounding Plates, Leonhard Lang GmbH with NH04 Gel,<br>decision date: 11/21/2006 |
| K030362 | Leonhard Lang Skintact® Cool Contact Electrosurgical<br>Grounding Plates, Leonhard Lang GmbH, decision date:<br>04/14/2003 |
| K994428 | E7512 Premie REM PolyHesive II Patient Return Electrode |
#### INDICATIONS FOR USE:
Skintact Neutral Electrodes for Neonates are designed for use with electrosurgical generators for cutting and coagulation of human tissue of newborn or prematurely born patients of between approximately 1 and 11 lbs (0.45 kg and 4.99 kg).
Valleylab Inc., decision date: 03/07/2000
Traditional 510(k): Skintact® Neutral Electrodes for Neonates
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## 510(k) Summary-Continued
#### DESCRIPTION of the DEVICE:
Skintact® Neutral Electrodes for Neonates are single use, non-sterile and disposable and are to be used on intact (uninjured) skin.
Skintact® Neutral Electrodes for Neonates consist of a backing material, conductive layer and conductive adhesive gel. The Neutral Electrodes for Neonates are applied on a release liner. The only change in construction materials is a slight modification of the conductive hydrogel. This modification was carried out to adapt the gel to the skin of neonates. Skintact® Neutral Electrodes for Neonates are accessories to surgery devices.
Skintact® Neutral Electrodes for Neonates are passive devices and do not contain active electronics, software or firmware Skintact® Neutral Electrodes for Neonates are packaged in water-vapour-proofed, heat-sealed, non-transparent, aluminized pouches.
#### SUMMARY of TESTING:
#### Performance and Standards:
Performance testing was conducted according standard EN60601-2-2:2009 Medical electrical equipment -Part 2-2: Particular requirements for the basic safety and essential performance of high frequency surgical equipment and high frequency surgical accessories (IEC 60601-2-2:2009), relevant clauses.
EN60601-2-2:2009, 201.15.101.5 - NE thermal performance- including comparative thermal performance testing against predicate product.
EN60601-2-2:2009, 201.15.101.6 - NE contact impedance
EN60601-2-2:2009, 201.15.101.7 - NE adhesion
Release test with electrodes aged at +23°C for 43 days and Shelf life test with accelerated aged electrodes at increased temperature of +75°C for 43 days.
According EN60601-2-2:2009, 201.15.101.8. Results are within limits.
#### Biocompatibility and Sterility:
Biocompatibility testing has been performed for materials with direct skin contact. Biocompatibility testing confirms the materials are biocompatible and do not introduce new risks.Skintact® Neutral Electrodes for Neonates are NON-STERILE so there was no sterility testing required.
#### Substantial Equivalence Summary [21CFR 807.92(a) (6)]
Skintact® Neutral Electrodes for Neonates have the same indications for use as Skintact® Cool Contact Electrosurgical Grounding Plates approved in existing 510(k)s K030362 and K063161, expanded with the addition of target group "neonates" like approved in existing 510(k) K994428.
| | Comparison of Indications for Use | | | |
|---------|---------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------|
| | K030362, K063161 | This submission | K994428 | |
| similar | Skintact® Cool Contact<br>Electrosurgical<br>Grounding Plates | Skintact® Neutral<br>Electrodes for<br>Neonates | The E7512 Neonatal<br>REM PolyHesive™ II<br>Neonatal Patient<br>Return Electrode | similar |
| SAME | are designed for use<br>with electrosurgical<br>generators for cutting<br>and coagulation of<br>human tissue. | are designed for use<br>with electrosurgical<br>generators for cutting<br>and coagulation of<br>human tissue | is single use, non-<br>sterile dispersive with<br>a preattached cord.<br>The electrode adheres<br>to the patient over its<br>entire surface. Its<br>purpose is to complete<br>the electrosurgical<br>circuit between the<br>generator, the active<br>electrode, and the | similar |
## Traditional 510(k): Skintact® Neutral Electrodes for Neonates
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### 510(k) Summary-Continued
| | | patient.<br>Indications for use are<br>general monopolar<br>electrosurgery on | | |
|----|----|-------------------------------------------------------------------------------|--------------------------------------------------------------------------|---------|
| -- | -- | of newborn or<br>prematurely born<br>patients of between<br>approximately 1 | newborn or<br>prematurely born<br>patients of between<br>approximately 1 | SAME |
| -- | -- | and 11 lbs. | and 6 lbs. | similar |
The patient weight range of Skintact® Neutral Electrodes for Neonates is indicated according standard EN60601-2-2:2009 Medical electrical equipment - Part 2-2: Particular requirements for the basic safety and essential performance of high frequency surgical equipment and high frequency surgical accessories (IEC 60601-2-2:2009)
Skintact® Neutral Electrodes for Neonates are substantially equivalent to predicate devices
| Comparison | K030362<br>K063161 | Skintact® Neutral<br>Electrodes for<br>Neonates | K994428 |
|--------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------|---------|
| Technical<br>Characteristics /<br>Features | single patient use | | |
| | disposable | | |
| | self-adhesive | | |
| | non-sterile | | |
| | for use on<br>adults and children | for use on<br>neonates (newborn or prematurely born) | |
| Packaging | sealed foil pouch | | unknown |
| Testing | Based on biocompatibility testing and electrical and adhesive<br>performance testing of the electrodes the devices are safe and effective<br>when used according instructions for use. | | |
| Construction | > Backing material<br>> Conductive layer<br>> Conductive adhesive hydrogel<br>> Cover material | | |
#### CONCLUSION:
The introduction of the Skintact® Neutral Electrodes for Neonates (and also to be offered for sale under various private label tradenames) does not introduce new issues of safety or effectiveness and the Skintact® Neutral Electrodes for Neonates are substantially equivalent to the predicate device. Biocompatibility testing confirms the materials are biocompatible and do not introduce new risks.
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Image /page/3/Picture/0 description: The image is a black and white logo for the Department of Health & Human Services - USA. The logo is circular and features a stylized caduceus symbol in the center. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged around the upper half of the circle.
Public Health Service
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
July 29, 2014
Leonhard Lang GmbH Ms. Elaine Duncan, M.S.M.E, RAC President, Paladian Medical Incorporated P.O. Box 560 Stillwater, Minnesota 55082
Re: K140500
Trade/Device Name: SkinTact® Neutral Electrodes for Neonates Regulation Number: 21 CFR 878.4400 Regulation Name: Electrosurgical, Cutting & Coagulation & Accessories Regulatory Class: Class II Product Code: GEI Dated: June 26, 2014 Received: June 30, 2014
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, 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 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 device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set
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Page 2 - Ms. Elaine Duncan, M.S.M.E, RAC
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.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Small Manufacturers, International and Consumer Assistance at its tollfree number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/Resourcesfor You/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 Small Manufacturers, International and Consumer Assistance 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,
# David Krause -S
- for Binita S. Ashar, M.D., M.B.A., F.A.C.S. Director Division of Surgical Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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## Indications for Use
510(k) Number (if known): K140500
Skintact® Neutral Electrodes for Neonates Device Name:
Indications for Use:
Skintact Neutral Electrodes for Neonates are designed for use with electrosurgical generators for cutting and coagulation of human tissue of newborn or prematurely born patients of between approximately 1 and 11 lbs (0.45 kg and 4.99 kg).
Prescription Use (Part 21 CFR 801 Subpart D) AND/OR
Over-The-Counter Use (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
# Joshua C. Nipper -S
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.