SCENAR (SCELAP, ENISAR, IPENS) CUTANEOUS ELECTRODE FAMILY
Applicant
Ritm Okb Zao
Product Code
GZJ · Neurology
Decision Date
Jul 11, 2014
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 882.5890
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The SCENAR Cutaneous Electrode Family with SCENAR TENS devices is indicated for relief and management of chronic and acute pain, as adjunctive treatment in the management of post-surgical and post-traumatic pain.
Device Story
SCENAR Cutaneous Electrode Family consists of passive add-on accessories (small, comb, and point electrodes) for RITM OKB ZAO transcutaneous electrical nerve stimulators. Electrodes interface with skin to deliver bipolar electric pulses generated by the host stimulator; no internal power or active circuitry. Used by medical professionals in clinical settings or by patients at home via physician prescription. Electrodes facilitate treatment of difficult-to-reach body areas (e.g., ulnar/wrist joints, feet, hairy regions, reflexogenic points) where built-in device electrodes are less effective. By enabling targeted stimulation, the device assists in pain management, potentially reducing reliance on other remedies. Output is non-invasive electrical stimulation; healthcare providers use the device to manage pain symptoms directly.
Clinical Evidence
Bench testing only. Performance testing characterized the electrodes against predicate InterX5000 accessories. Conformity to IEC 60601-1 (general safety), IEC 60601-2-10 (nerve and muscle stimulators), and IEC 60601-1-2 (EMC) was verified via test reports.
Technological Characteristics
Passive electrodes; materials include stainless steel, silver-plated brass, ABS plastic, and fluoroplastic. Configurations: coaxial bipolar (small, point) and multipoint bipolar (comb). Connectivity: wired connection to host TENS device via two-conductor cable. Non-sterile. No internal power or software.
Indications for Use
Indicated for relief and management of chronic and acute pain, and as adjunctive treatment for post-surgical and post-traumatic pain in patients requiring TENS therapy.
Regulatory Classification
Identification
A transcutaneous electrical nerve stimulator for pain relief is a device used to apply an electrical current to electrodes on a patient's skin to treat pain.
{0}------------------------------------------------
## Закрытое акционерное общество "ОКБ "РИТМ" RITM OKB ZAO JUL 1 1 2014
ЗАО "ОКБ "РИТМ", ул.Петровская, 99. г.Таганрог, Россия, 347900 Тел./факс: (8634) 62-31-79 E-mail: medsc@scenar.com.ru RITM OKB ZAO Petrovskaya St., 99 Taganrog, Russia, 347900 Tel./fax: (8634) 62-31-79 E-mail: medso@scenar.com.ru
പ്രദിപ്പിച്ച
## 510(k) Summary
#### Submitter Information:
RITM OKB ZAO Address: 99, Petrovskaya str., Taganrog, Russia, 347900 Phone/fax: +7 (8634) 623-179 Contact person: Larisa Shpungina Date of Summary Preparation: May 19, 2014
#### Trade Name:
SCENAR (SCELAP, ENISAR, IPENS) Cutaneous Electrode Family
Common Name: Transcutaneous Electrical Nerve Stimulator
#### Classification Name:
TRANSCUTANEOUS ELECTRICAL NERVE STIMULATOR (21 CFR 882.5890, PRODUCT CODE GZJ)
#### Predicate Device:
SCENAR (K092117) InterX5000 (K042912)
#### Description:
The SCENAR Cutaneous Electrode Family is intended to be used with electrostimulation devices produced by RITM OKB ZAO as external add-on electrode accessories.
#### Purpose
Purpose of SCENAR transcutaneous electrostimulator (K092117) is completely specified. SCENAR transcutaneous electrostimulators and SCENAR Cutaneous Electrode Family are designed for delivering general non-invasive treatment via human skin areas for relief and management of chronic and acute pain, as adjunctive treatment in the management of postsurgical and post-traumatic pain.
SCENAR devices and SCENAR Cutaneous Electrode Family can be used:
- at home on a doctor's prescription to relief pain after various injuries and traumas;
- by medical professionals in medical and prophylactic institutions - as an independent remedy as well as combined with other treatments.
#### Action: How it works
SCENAR devices generate low and medium frequency bipolar electric pulses. The shape of the pulses dynamically varies with changing electrophysiological characteristics of the skin. The SCENAR Cutaneous Electrode Family has no power unless it is connected to transcutaneous electrostimulator. The SCENAR Cutaneous Electrode Family is placed
May 19, 2014
{1}------------------------------------------------
directly onto unbroken skin and does not use any conductive gels. These electrodes serve as complement to the device and allow influencing the special or hard-to-get-to parts of the body in comparison with built-in electrode.
The small electrode facilitates to influence parts with difficult relief -ulnar and wrist joints, feet etc. and also while using in pediatrics.
The comb electrode facilitates to influence pubis, axilla and other hairy parts of the skin. The point electrode allows carrying out condensed influence to reflexogenic points of extremities and ears.
#### List of produced devices
The SCENAR Cutaneous Electrode Family produced by RITM OKB ZAO is listed in the Table 1. The Electrodes are united into array since their purpose, application, mechanism of action, utilized materials, basic technical characteristics, functionality and manufacturing processes are similar.
Table 1
| Electrode Model | |
|-----------------|--|
| Small electrode | |
| Comb electrode | |
| Point electrode | |
#### Specifications
Specifications of SCENAR Cutaneous Electrode Family are given in Table 2.
| Table | 2 |
|-------|---|
|-------|---|
| Parameter | Small electrode | Comb electrode | Point electrode |
|-------------------------------|------------------------------|------------------------------|--------------------------------|
| Type of electrodes | coaxial bipolar | multipoint bipolar | coaxial bipolar |
| Dimensions<br>(without cable) | not more than<br>50x40x25 mm | not more than<br>60x40x25 mm | not more than<br>$⌀$ 15x120 mm |
| Weight<br>(whole electrode) | not more than 0.04 kg | not more than 0.05 kg | not more than 0.04 kg |
| Cable length | (900 ± 100) mm | | |
#### Design Description
The SCENAR Cutaneous Electrode Family does not contain any electrical components. Electrodes are made of stainless steel, brass with silver plated, ABS plastic and fluoroplastic placed in ABS plastic case. The electrodes are connected to electrostimulator by wiring through a connector cable.
The cable is a two conductor cable using two single wires tinned with copper.
The connector is medically recognized and cannot be plugged into an AC socket.
#### Materials
Stainless steel, brass with silver plated, ABS, fluoroplastic - electrodes, ABS - case.
#### Power supply
The SCENAR Cutaneous Electrode Family does not contain power supply.
#### Sterilization
The SCENAR Cutaneous Electrode Family is intended to be used non-sterile.
#### Software
The SCENAR Cutaneous Electrode Family does not contain any software/firmware.
{2}------------------------------------------------
#### Indications for Use
The SCENAR Cutaneous Electrode Family with SCENAR TENS devices is indicated for relief and management of chronic and acute pain, as adjunctive treatment in the management of post-surgical and post-traumatic pain.
#### Substantial Equivalence Comparison
The performance comparison of SCENAR Cutaneous Electrode Family and INTERX5000 optional external electrode accessories is given in Table 3.
Performance testing was conducted to characterize the performance of the SCENAR Cutaneous Electrode Family as compared to published data of predicate devices InterX5000 optional external electrode accessories.
| Parameter | SCENAR Cutaneous<br>Electrode Family | InterX5000 optional external<br>electrode accessories |
|----------------------------------|---------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------|
| Type of<br>electrodes | small – coaxial bipolar<br>comb – multipoint bipolar<br>point – coaxial bipolar | classic – coaxial bipolar<br>comb – multipoint bipolar<br>small circular – coaxial bipolar |
| Dimensions<br>(without<br>cable) | small – 45x37x22 mm<br>comb – 55x37x22 mm<br>point – Ø11x117 mm | classic – ~ 80x40x20 mm<br>comb – ~ 80x40x20 mm<br>small circular – ~ Ø16x130 mm |
| Weight<br>(whole<br>electrode) | small – 0.028 kg<br>comb – 0.040 kg<br>point – 0.022 kg | data not available |
| Cable length | small – 910 mm<br>comb – 905 mm<br>point – 907 mm | data not available |
| Table<br>0 | |
|------------|--|
|------------|--|
The differences in dimensions of the subject and predicate devices are minor because:
- the dimensions of the electrode's part contacting the skin differ unsignificantly (2-5 mm). These dimensions are approximately determined by the purpose of the electrode and their minor deviations do not affect the Indications for Use and Fundamental scientific technology of the proposed electrodes;
- the third dimension (length) of the electrode has been determined considering ergonomics. This dimension as well as the shape of the electrode body can influence only the comfort of performing manipulations with the electrode, and maybe, the way the electrode is held.
SCENAR Cutaneous Electrode Family complies with performance standard requirements (21 CFR 898.12) relating to patient lead wires and electrodes.
RITM OKB ZAO has received test reports certifying that SCENAR Cutaneous Electrode Family was tested and found to be in conformity with IEC 60601-1, IEC 60601-2-10 and IEC 60601-1-2 international safety and EMC standards.
The test reports have been provided as part of this premarket notification. Test results of SCENAR devices with add-on electrodes (SCENAR Cutaneous Electrode Family) are given in the test reports.
#### Conclusions
The devices have intended use and technological characteristics that are substantially equivalent to those of the predicate device InterX5000 (K042912) (optional external electrode accessories) and SCENAR (K092117).
The test reports contained in this submission demonstrate that the submitted models are equivalent to the safety and effectiveness as that of the cleared devices.
{3}------------------------------------------------
Image /page/3/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo features a stylized caduceus, a symbol often associated with medicine and healthcare, with three wavy lines representing the branches of government. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" is arranged in a circular pattern around the symbol. The logo is black and white.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-Gbl) Silver Spring, MD 20993-0002
July 11, 2014
Ritm Okb Zao Larisa Shpungina Certification and Licensing Engineer 99. Petrovskaya Str., Taganrog. 347900. Russia
Re: K131513
Trade/Device Name: SCENAR Cutancous Electrode Family Regulation Number: 21 CFR 882.5890 Regulation Name: Transcutancous Electrical Nerve Stimulator Regulatory Class: Class II Product Code: GZJ, GXY Dated: May 19, 2014 Received: June 11, 2014
Dear Ms. Shpungina:
We have reviewed your Section 510(k) premarket notification of intent to market the device relerenced 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 I hat 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 or any i each statutes and regainments. including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set
{4}------------------------------------------------
Page 2 - Larisa Shpungina
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" (21CFR 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,
# Felipe Aquel -S
Carlos L. Peña, PhD, MS for Director Division of Neurological and Physical Medicine Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{5}------------------------------------------------
#### Indications for Use
510(k) Number (if known) K131513
#### Device Name
SCENAR (SCELAP, ENISAR, IPENS) Cutaneous Electrode Family
#### Indications for Use (Describe)
The SCENAR Cutaneous Electrode Family with SCENAR TENS devices is indicated for relief and management of chronic and acute pain, as adjunctive treatment in the management of post-surgical and post-traumatic pain.
Type of Use (Select one or both, as applicable)
Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
:
## PLEASE DO NOT WRITE BELOW THIS LINE – CONTINUE ON A SEPARATE PAGE IF NEEDED.
#### FOR FDA USE ONLY
Concurrence of Center for Devices and Radiological Health (CDRH) (Signature)
# Date: 2014.07.11 11:51:26 -04'00'
This section applies only to requirements of the Paperwork Reduction Act of 1995.
### *DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW."
The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:
Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff@fda.hhs.gov
"An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number."
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.