K180232 · Daehan Medical Systems Co., Ltd. · GXY · Apr 3, 2019 · Neurology
Device Facts
Record ID
K180232
Device Name
DAEHAN Disposable CUP Electrodes
Applicant
Daehan Medical Systems Co., Ltd.
Product Code
GXY · Neurology
Decision Date
Apr 3, 2019
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 882.1320
Device Class
Class 2
Attributes
Pediatric
Indications for Use
The CUP Electrodes are intended for non-invasive use with recording and monitoring equipment,(active and reference), of Electroencephalograph (EEG), electromyography (EMG)and Evoked Potentials(EP).
Device Story
DAEHAN Disposable CUP Electrodes are cutaneous electrodes used to record physiological signals (EEG, EMG, EP). The device consists of an Ag/AgCl plated ABS disc permanently adhered to a PVC-insulated tin-plated copper lead wire, terminating in a molded DIN 42 802 touch-proof connector. Electrodes are applied to the patient's scalp to acquire biopotential signals for monitoring and recording equipment. The device is non-sterile, for single-patient use, and is operated by healthcare professionals in clinical settings. The output is a raw electrical signal transmitted to external recording/monitoring equipment, which the clinician uses to interpret patient neurological or muscular activity. The non-invasive nature of the device provides a safe method for diagnostic signal acquisition.
Clinical Evidence
Bench testing only. Evidence includes biocompatibility assessment, bond testing, electrical properties testing per AAMI/ANSI EC12, patient lead testing per IEC 60601-1 Ed3.1, and shelf-life testing per ASTM F1980-02.
Technological Characteristics
Materials: Ag/AgCl plated ABS cup, PVC insulated tin-plated copper lead wire. Dimensions: 10mm cup diameter; lead wire lengths 1.0-3.0M. Connectivity: DIN 42 802 1.5mm touch-proof connector. Sterilization: Non-sterile. Standards: AAMI/ANSI EC12, IEC 60601-1 Ed3.1, ASTM F1980-02.
Indications for Use
Indicated for non-invasive acquisition of physiological signals (EEG, EMG, EP) from the scalp in adult and pediatric patients.
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.
{0}------------------------------------------------
# Please wait...
If this message is not eventually replaced by the proper contents of the document, your PDF viewer may not be able to display this type of document.
You can upgrade to the latest version of Adobe Reader for Windows®, Mac, or Linux® by visiting http://www.adobe.com/go/reader_download.
For more assistance with Adobe Reader visit http://www.adobe.com/go/acrreader.
Windows is either a registered trademark of Microsoft Corporation in the United States and/or other countries. Mac is a trademark of Apple Inc., registered in the United States and other countries. Linux is the registered trademark of Linus Torvalds in the U.S. and other countries.
{1}------------------------------------------------
Image /page/1/Picture/0 description: The image contains the logo of the U.S. Food and Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is the FDA logo in blue, with the words "U.S. FOOD & DRUG" on top and "ADMINISTRATION" below.
April 3, 2019
Daehan Medical Systems Co., Ltd. Da Roo Ha RA Manager 250 Okgucheondong-Ro Siheung-City, Gyeonggido, Republic of Korea, 15084
Re: K180232
Trade/Device Name: DAEHAN Disposable CUP Electrodes Regulation Number: 21 CFR 882.1320 Regulation Name: Cutaneous Electrode Regulatory Class: Class II Product Code: GXY Dated: March 12, 2019 Received: March 13, 2019
Dear Da Roo Ha:
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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. 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
{2}------------------------------------------------
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) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/CombinationProducts/GuidanceRegulatoryInformation/ucm597488.html; good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
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 comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/) and CDRH Learn (http://www.fda.gov/Training/CDRHLearn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (http://www.fda.gov/DICE) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
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
{3}------------------------------------------------
Image /page/3/Figure/0 description: The image shows the word "DAEHAN" in a stylized, sans-serif font. The letters are all connected, and the color is a light blue. Above the word is a small, abstract symbol that looks like four squares arranged in a circular pattern. To the right of the word is the trademark symbol.
# 510(k) Summary
[As required by 21 CFR 807.92]
#### Date Prepared [21 CFR 807.92(a)(a)] 1.
Dec. 26. 2017
#### Submitter's Information [21 CFR 807.92(a)(1)] 2.
| • | Name of Sponsor: | Daehan Medical Systems Co., Ltd. |
|---|------------------|---------------------------------------------------------------------------|
| - | Address: | 250 Okgucheondong-ro, Siheung-City Gyeonggido<br>15084, Republic of Korea |
| • | Contact Name: | Da Roo Ha / RA Manager |
| - | Telephone No.: | +82-31-432-6275 |
| - | Fax No.: | +82-31-432-6276 |
| - | Email Address: | drha@dmsleadwire.com |
- . Establishment Registration No.: 3002893037
- . Name of Manufacturer: Same as Sponsor Same as Sponsor -Address:
#### 3. Trade Name, Regulation Name, Classification [21 CFR 807.92(a)(2)]
- . Trade Name: DAEHAN Disposable CUP Electrodes
- Regulation Name: Cutaneous Electrode
- Classification: ●
| Classification Panel | Neurology |
|---------------------------|-----------------|
| Classification Regulation | 21 CFR 882.1320 |
| Product Code | GXY |
| Device Class | II |
{4}------------------------------------------------
Image /page/4/Picture/0 description: The image shows the word "DAEHAN" in blue font. Above the word is a small blue symbol that looks like four squares connected in the middle. The letters are all capitalized and the font is sans-serif. There is a trademark symbol in the bottom right corner of the word.
#### 4. Identification of Predicate Device(s) [21 CFR 807.92(a)(3)]
The identified predicate device within this submission is shown as follow;
## Primary predicate device
- 510(k) Number: K072016
- Applicant: Technomed Europe ●
- Regulation Name: Cutaneous Electrode
- Disposable EEG Cup Electrode . Device Name:
# Secondary predicate device
- 510(k) Number: K032278
- Applicant: Ambu, INC. ●
- Regulation Name: Cutaneous Electrode
- Device Name: Single Patient EEG/EP Cup Electrode ●
There are no significant differences between the DAEHAN Disposable CUP Electrodes and the predicate devices that would adversely affect the use of the product. It is substantially equivalent to these devices in design, function, and technical characteristics.
#### 5. Description of the Device [21 CFR 807.92(a)[4]]
A cutaneous electrode is an electrode that is applied directly to a patient's skin to record physiological signals. In other words cutaneous devices are used in the acquisition of signals for the purpose of monitoring and recording Electroencephalograph(EEG), Electromyograph(EMG), and Evoked Potentials(EP) and the electroencephalograph/evoked potentials reading is completely non-invasive procedure that can be applied to children and adult patients. The electrodes are delivered non-sterile and are available in disposable version.
DAEHAN Disposable CUP electrodes are for single patient use only. The electrodes have a disc manufactured of molded ABS, Ag/agcl plated. The disc is permanently adhered to a lead wire. The insulated lead wires terminate using a molded touch proof connector (DIN 42 802) for electrical safety.
## General Information
{5}------------------------------------------------
Image /page/5/Figure/0 description: The image shows the word "DAEHAN" in a stylized, sans-serif font. The letters are all in blue, and the "A" is stylized with a horizontal line through the middle. Above the word "DAEHAN" is a small, blue, geometric design that looks like four stylized flowers. To the right of the word "DAEHAN" is the trademark symbol.
#### Intended Use [21 CFR 807.92(a)(5)] 6.
The CUP Electrodes are intended for non-invasive use with recording and monitoring equipment,(active and reference), of Electroencephalograph (EEG), electromyography (EMG)and Evoked Potentials(EP).
#### Technological Characteristics [21 CFR 807.92(a)(6)] 7.
DAEHAN Disposable CUP Electrodes are based on a technical feature comparison, the proposed device was found to be similar to predicate device with regard to design, function, and technical characteristics.
| | Proposed Device | Primary Predicate Device | Secondary Predicate Device |
|------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| K Number | | K072016 | K032278 |
| Model | DAEHAN Disposable CUP Electrode | Disposable Cup electrodes | Single Patient EEG/EP Cup Electrode |
| Manufacturer | Daehan Medical Systems Co., Ltd. | Technomed Europe | Ambu, Inc |
| Device Class | Class II | Class II | Class II |
| Product code | GXY | GXY | GXY |
| Intended Use | The CUP electrodes are intended for non-invasive use with recording and monitoring equipment, (active and reference), of Electroencephalograph (EEG), electromyograph (EMG) and Evoked Potentials(EP). | The CUP electrodes are intended for non-invasive use with recording and monitoring equipment, (active and reference), of Electroencephalograph (EEG), electromyograph (EMG) and Evoked Potentials(EP). | The CUP electrodes are intended for use with recording, monitoring and stimulation equipment for the purpose of recording of biopotential signals for example: Electroencephalograph (EEG) and Nerve potentials signals. The electrodes are for single patient use only |
| Anatomical sites | Scalp | Scalp | Scalp |
| Cup | 10mm | 10mm | 10mm |
General Information
DAEHAN Disposable CUP Electrode
{6}------------------------------------------------
| | Proposed Device | Primary Predicate Device | Secondary Predicate Device |
|----------------------|-------------------------------------------|-------------------------------------------|-------------------------------------------|
| Diameter | | | |
| Leadwire Length | 1.0, 1.5, 2.0, 2.5, 3.0M | 1.0, 1.5, 2.0M | 1.0, 1.5, 2.0M |
| Cup material | Ag/AgCl plated ABS | Ag/AgCl plated ABS | Ag/AgCl plated ABS |
| Lead wire | PVC insulated tin plated copper | PVC insulated tin plated copper | PVC insulated tin plated copper |
| Connectors | DIN 42802 1.5mm and Touch proof connector | DIN 42802 1.5mm and Touch proof connector | DIN 42802 1.5mm and Touch proof connector |
| Sterilization Method | Non Sterilization | Non Sterilization | Non Sterilization |
# Non-Clinical Test Summary:
- 1) Biocompatibility
- Identical materials are used in legally marketed device
- 2) Performance Testing
- Bond Test ●
- Electrical Properties Test
- AAMI/ANSI EC12 : Disposable ECG Electrodes ●
- IEC 60601-1 Ed3.1 CL 8.5.2.3 : Patient Leads
- 3) Shelf-life Testing
- ASTM F1980-02, Standard Guide for Accelerated Aging of Sterile Medical Device Package.
#### Substantial Equivalence [21 CFR 807.92(b)(1) and 807.92] 8.
When compared to the predicate devices (K072016 and K032278), DAEHAN Disposable CUP Electrode in this submission presented the substantial equivalence in terms of:
- Intended use
- Device design
- Components and materials ●
General Information
DAEHAN Disposable CUP Electrode
{7}------------------------------------------------
Image /page/7/Picture/0 description: The image shows the word "DAEHAN" in a stylized, sans-serif font. The letters are all in blue, and the "A" in the middle of the word is stylized to look like the mathematical symbol "element of". Above the word is a small, blue, four-pointed star-like symbol. To the right of the word, there is a small "TM" symbol, indicating that the word is a trademark.
- Technological characteristics
#### 9. Conclusion [21 CFR 807.92(b)(3)]
In according with the Federal Food & drug and cosmetic Act, 21 CFR Part 807 and based on the information provided in this premarket notification, Daehan Medical Systems Co., Ltd., concludes that DAEHAN Disposable CUP Electrodes are substantially equivalent to predicate devices as described herein.
Predicate graph will load when search results are available.
Embedding visualization will load when search results are available.
PDF viewer will load when search results are available.
Loading panels...
Select an item from Submissions
Click any panel, subpart, regulation, product code, or device to see details here.
Section Matches
Results will appear here.
Product Code Matches
Results will appear here.
Special Control Matches
Results will appear here.
Loading collections...
Loading
My Alerts
You will receive email notifications based on the filters and frequency you set for each alert.
Sort by:
Create Alert
Search Filters
Agent Token
Create a read-only bearer token for Claude, ChatGPT, or other agents that can call HTTP APIs.
Copy this now. It will not be shown again.
Connected apps
Apps you authorized through browser sign-in. Disconnecting revokes their access immediately.
Learn the FDA Browser
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.