The ELFcare™ device Models 314A, 314B, 314C, 314F and 314G is a TENS device intended for the symptomatic relief and management of chronic intractable pain. It is also used as an adjunctive treatment in the management of post-surgical and post-traumatic pain. It has no curative value and should be used only in conjunction with medical supervision. The ELFcare™ device Models 314F and 314G is a EMS device intended for relaxation of muscle spasms, prevention or retardation of disuse atrophy, increasing local blood circulation, muscle re-education, maintaining or increasing range of motion and prevention of venous thrombosis of the calf muscles immediately after surgery. The ELFcare™ device Models 314A, 314B, 314C, 314D, 314E is also a hot/cold therapy device intended for localized thermal therapy (hot or cold) for post traumatic and post surgical medical and/or surgical conditions. It is also used to provide temporary relief of minor aches and pains and muscle spasms.
Device Story
Handheld, battery-operated unit; provides combination of transcutaneous electrical nerve stimulation (TENS), powered muscle stimulation (EMS), and thermal (hot/cold) therapy. System utilizes electronically controlled thermoelectric electrode unit for heating/cooling or 4-head electrode for localized electrotherapy. Models vary by modality capability (electro-thermal vs. thermal-only vs. carbon electrode) and memory capacity (16 to 256 programs). Operated via control unit; treatment parameters/sequences pre-programmed. Used in clinical settings under medical supervision for pain management and rehabilitation. Benefits include localized pain relief, muscle spasm reduction, and improved circulation/range of motion.
Clinical Evidence
Bench testing only. Compliance with IEC 60601-1 (electrical safety) and IEC 60601-1-2 (electromagnetic compatibility) standards was certified.
Technological Characteristics
Handheld, battery-operated unit. Features electronically controlled thermoelectric electrode unit for thermal therapy and 4-head electrode for electrotherapy. Waveforms include microcurrent, IFC, VMS Burst, Russian, and biphasic symmetrical pulses. Models 314F/G support external carbon electrodes. Compliance with IEC 60601-1 and IEC 60601-1-2.
Indications for Use
Indicated for patients requiring symptomatic relief of chronic intractable pain, post-surgical/post-traumatic pain management, muscle spasm relaxation, prevention/retardation of disuse atrophy, increased local blood circulation, muscle re-education, range of motion maintenance/increase, prevention of post-surgical venous thrombosis, and localized thermal therapy for post-traumatic/post-surgical conditions or minor aches/pains.
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.
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Image /page/0/Picture/1 description: The image contains a sequence of characters and numbers. The sequence starts with the letter 'k', followed by the number '0', and then the numbers '23231'. The characters and numbers are written in a handwritten style, with a slightly uneven and imperfect appearance.
Mediseb LTD
Medical Engineering
# SUMMARY OF SAFETY AND EFFECTIVENESS
### Applicant:
Mediseb Ltd. 6 Galgalei Haplada Str. Herzelia, ISRAEL 46733 Tel: +972-9-9500885 Fax: +972-9-9500886
### Corresponding Official:
Name: Ahava M. Stein, Consultant Address: A. Stein - Regulatory Affairs Consulting Beit Hapa'amon (Box 124) 20 Hata'as St. 44425 Kfar Saba ISRAEL Tel: +972-9-767 0002 Fax: +972-9-766 8534
#### Device Name:
Device trade or proprietary name: 314F and 314G Common Name: Classification Name:
ELFcare™, Models 314A, 314B, 314C, 314C, 314D, 314E, TENS / EMS/ Hot/cold pack Transcutaneous Electrical Nerve Stimulation Device, Class II, 882.5890 Powered Muscle Stimulator Device, Class II, 890.5850 Hot/Cold Pack, Class I, 890.5700
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02321
**Page 2 of 5**
ediseb
Medical Engineering LTD.
### Predicate Devices:
The ELFcare "14 device is substantially equivalent to a combination of the following devices. Device names', manufacturers and 510(k) numbers are designated in the following table.
| Device | Manufacturer | Type of Device | 510(k) Number |
|-----------------------------------------------|--------------------------------------|---------------------------|---------------|
| Vectra PRO 2 | Chattanooga Group Inc. | Electrotherapy Device | K982324 |
| Trio 300 | ITO CO., Ltd. | Electrotherapy Device | K990787 |
| Thera-Temp<br>Flexible Cold/Hot<br>Packs | Chattanooga group Inc. | Cold Pack | 510(k) exempt |
| Artotherm<br>Cryotherapy and<br>Thermotherapy | Ormed GmbH | Thermal Therapy<br>Device | K913026 |
| TTU-100 | Danninger Medical<br>Technology Inc. | Thermal Therapy<br>Device | K964799 |
### Description of the Device:
The ELFcare™ device is a lightweight hand held battery operated unit which employs a combination application of previously well known electrical and temperature treatment modalities for pain relief and rehabilitation. The system is based on a combination of thermal transfer and conventional transcutaneous electrical stimulation therapy.
The ELFcare™ device makes use of an electronically controlled thermoelectric electrode unit that can be operated in cooling or heating modes. The thermoelectric electrode unit is controlled by the hand-held control unit.
| <b>Cooling:</b> | In the cooling mode, the thermoelectric electrode unit produces<br>continuous and accurately controlled cold therapy to the treated<br>area. |
|------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| <b>Heating:</b> | When operated in heating mode, well-controlled heat therapy is<br>introduced to the treated area. |
| <b>Electrotherapy:</b> | The unit incorporates a 4-head electrode for localized<br>electrotherapy. Electrical and temperature calibrated modalities are<br>applied in pre-programmed sequences and combinations |
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K023231
#### Page 4 of 5
ediseb LTD.
Medical Engineering
The ELFcare™ device combines electrical and temperature calibrated modalities by means of an electronically controlled thermoelectrode, as described above. The thermoelectrode is placed on the affected area. The thermoelectrode unit is connected to the ELFcare" Control Unit. The treatment programs and treatment parameters are controlled and operated via the ELFcare™ Control Unit.
The following table presents the different models of the ELFcare™ device that are available:
| Features / Model | 314A | 314B | 314C | 314D | 314E | 314F | 314G |
|--------------------------------------------------------|------|------|------|------|------|------|------|
| Electrode Type | | | | | | | |
| Electro-Thermal Electrode | ● | ● | ● | | | | |
| Thermal (Hot/Cold) | | | | ● | ● | | |
| Carbon Electrode (Regular)<br>(not supplied w/ device) | | | | | | ● | ● |
| Electrotherapy | | | | | | | |
| Waveforms | | | | | | | |
| Microcurrent | ● | ● | ● | | | ● | ● |
| IFC (Premodulated Interferential) | ● | ● | ● | | | ● | ● |
| VMS Burst | ● | ● | ● | | | ● | ● |
| Russian | ● | ● | ● | | | ● | ● |
| Biphasic Symmetrical Pulses | ● | ● | ● | | | ● | ● |
| Preset Procedures | | | | | | | |
| Capability | | | | | | | |
| 16 Programs | | | | | | | |
| 32 Programs | | | | | ● | | |
| 64 Programs | | | ● | ● | | | |
| 128 Programs | | | | | | | |
| 256 Programs | ● | ● | | | | | |
#### General differences between the models:
- · The ELFcare™ Models 314A, 314B and 314C use the thermoelectrod. The models varied just by the device memory capabilities as describe in the above table.
- · The ELFcare™ Models 314D, 314E are limited to provide only the hot and cold features without electrotherapy capabilities.
- The ELFcare™ Models 314F, 314G are provided without the thermoelectrod. The user can connect standard carbon electrodes using the supplied adaptors.
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ediseb
Medical Engineering
### Intended Use:
The ELFcare™ device Models 314A, 314B, 314C, 314F and 314G is a TENS device intended for the symptomatic relief and management of chronic intractable pain. It is also used as an adjunctive treatment in the management of post-surgical and post-traumatic pain. It has no curative value and should be used only in conjunction with medical supervision.
The ELFcare™ device Models 314F and 314G is a EMS device intended for relaxation of muscle spasms, prevention or retardation of disuse atrophy, increasing local blood circulation, muscle re-education, maintaining or increasing range of motion and prevention of venous thrombosis of the calf muscles immediately after surgery.
The ELFcare™ device Models 314A, 314B, 314C, 314D, 314E is also a hot/cold therapy device intended for localized thermal therapy (hot or cold) for post traumatic and post surgical medical and/or surgical conditions. It is also used to provide temporary relief of minor aches and pains and muscle spasms.
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#### Page 5 of 5
### Performance data:
### Safety Testing:
Testing was carried out to assure compliance with recognized electrical safety standards. Mediseb has certified compliance with the IEC 60601-1 standard for electrical safety and compliance with the IEC 60601-1-2 standard for electromagnetic compatibility.
## Technological Characteristics Compared to Predicate Device
The technological characteristics, e.g., overall design, materials, mechanism of action, mode of operation, performance characteristics, etc., and the intended use of the ELFcare™ device are substantially equivalent to the predicate devices cited above.
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Image /page/5/Picture/1 description: The image is a black and white logo for the U.S. Department of Health and Human Services. The logo features a stylized image of an eagle or bird with three human profiles incorporated into its design. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged in a circular pattern around the bird image.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
APR o 4 2003
Mediseb Ltd. c/o Ms. Ahava M. Stein Regulatory Affairs Consulting Beit Hapa'amon (Box 124) 20 Hata'as St. 44425 Kfar Saba, ISRAEL
Re: K023231
Trade/Device Name: The ELFcare™. Models 314A, 314B, 314C, 314F and 314G The ELFcare™, Models 314F and 314G The ELFcare™, Models 314A, 314B, 314C, 314C, 314D and 314E Regulation Numbers: 21 CFR 882.5890, 21 CFR 890.5850, 21 CFR 890.5720 Regulation Names: Transcutaneous electrical nerve stimulator for pain relief Powered muscle stimulator Water circulating hot or cold pack Regulatory Class: Class II Product Codes: GZJ, IPF, ILO Dated: December 23, 2002 Received: January 6, 2003
Dear Ms. Stein:
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. Ahava M. Stein
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 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 (301) 594-4659. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. 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 (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html
Sincerely vours.
Sincerely yours,
Mark n Milhem
Celia M. Witten, Ph.D., M.D. Director Division of General, Restorative and Neurological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# INDICATIONS FOR USE STATEMENT
| 510(k) Number: | K023231 |
|----------------------|-----------------------------------------------------------------------------------------------------------------------------|
| Device Name: | ELFcare™, Models: 314A, 314B, 314C, 314D, 314E, 314F and 314G |
| Indications for use: | For Microcurrent and IFC (Premodulated Interferential) electrical stimulation using models 314A, 314B, 314C, 314F and 314G: |
| | - Symptomatic relief and management of chronic intractable pain |
| | - Adjunctive treatment in the management of post-surgical and post-traumatic pain. |
| | For VMS Burst, Russian and Biphasic Symmetrical Pulses electrical stimulation using models 314F and 314G: |
| | - Relaxation of muscle spasms |
| | - Prevention or retardation of disuse atrophy |
| | - Increasing local blood circulation |
| | - Muscle re-education |
| | - Maintaining or increasing range of motion |
| | - Prevention of venous thrombosis of the calf muscles immediately after surgery |
| | For Hot/Cold therapy using models: 314A, 314B, 314C, 314D, 314E: |
- Localized thermal therapy (hot or cold) for post traumatic and post surgical medical and/or surgical conditions.
- Temporary relief of minor aches and pains and muscle spasms -
(PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE IF NEEDED) Concurrence of CDRH, Office of Device Evaluation (ODE)
Prescription Use
(Per 21 C.F.R. 801/109)
OR Over-The-Counter Use
(Optional Format 1-2-96
(Division Sign-Off)
Division of General, Restorative
and Neurological Devices
510(k) Number. K023231
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.