LOW BACK PAIN RELIEF SYSTEM /MODELS GM310PP,GM320PP,GM321PP, AND GM330PP
Applicant
Gemore Technology Co, Ltd.
Product Code
NUH · Neurology
Decision Date
Apr 28, 2006
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 882.5890
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The models GM310PP, GM321PP, and GM330PP are indicated for over the counter use in the temporary relief of pain associated with sore and aching muscles in the low back due to stain from exercise or normal household and work activities.
Device Story
Low Back Pain Relief System (models GM310PP, GM320PP, GM321PP, GM330PP) provides transcutaneous electrical nerve stimulation (TENS). System components include TENS stimulation unit, support belt, self-adhesive pads, and snap cables. Device worn on lower back; stimulation pads placed on treatment location. Operated by patient for home use. Stimulation unit delivers electrical pulses to muscles to provide temporary pain relief. Effectiveness relies on previously cleared stimulation technology (K032720).
Clinical Evidence
No clinical data. Bench testing only. Performance testing conducted per ANSI/AAMI NS4; safety testing per EN 60601-1, EN 60601-1-1, and EN 60601-1-2. Biocompatibility testing for the neoprene support belt performed per ISO 10993-1.
Technological Characteristics
TENS stimulation unit; neoprene support belt; self-adhesive electrodes; snap cable connectivity. Electrical stimulation principle. Biocompatibility per ISO 10993-1. Safety standards: ANSI/AAMI NS4, EN 60601-1, EN 60601-1-1, EN 60601-1-2.
Indications for Use
Indicated for over-the-counter use in adults for temporary relief of pain associated with sore and aching muscles in the lower back due to strain from exercise or normal household and work activities.
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.
Predicate Devices
Limit Function WL/OTC-TENS/Model WL-2403 (K040512)
Submission Summary (Full Text)
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## 510(K) SUMMARY
This summary of 510(k) safety and effectiveness information is being submitted in accordance with the requirements of SMDA 1990 and 21 CFR 807.92.
The assigned 510(k) number is: _______________________________________________________________________________________________________________________________________________
- 1. Submitter's Identifications:
GEMORE TECHNOLOGY CO., LTD. Company Name : Boden S.P. Lai Contact person: 11FL., NO. 29-5, Sec. 2, Chung Cheng E. RD., Tan Shui, Taipei Hsien, Taiwan Address : 886-2-8809-1799 TEL No. : 886-2-8809-1781 Fax No. : gemore@anet.net.tw E-mail address :
Date of Summary Preparation: January 24, 2006.
2. Device Identification: Classification Name: Transcutaneous Nerve Stimulator. Grassliteation Name: Low Back Pain Relief System, model GM310PP, GM321PP, GM321PP, and GM330PP. Classification: Class II (21 CFR 882.5890) Product Code: GZJ & NUH
- 3. Identification of predicate device
The Gemore Low Back Pain Relief System models GM310PP, GM320PP, GM321PP, and GM330PP are of comparable type and are substantially equivalent to the following predicate devices:
- K040512: Limit Function WL/OTC-TENS/Model WL-2403.
- 4. Device Description:
Device Describition:
The Gemore Low Back Pain Relief System, models GM310PP, GM320PP, GM321PP, and r in Comford Love invasive devices which are intended for over the counter use in temporary relied of pain associated with sore and aching muscles in the lower back due to stain from exercise or normal household and work activities.
The devices contain the following main parts: TENS stimulation unit, Support Belt, Self-adhesive pads, and Snap Cable.
The device can be worn on the low back part of user so as to place the stimulation pads on the treatment location of low back.
The main stimulation function is achieved through the stimulation unit of GM310PP, GM320PP, GM321PP, and GM330PP. Those stimulation units have been cleared for 510(k) before being submitted on this new submission for OTC application. The K-number for these four models are K032720.
For the detail description of these four stimulation models, please refer to the information provided in K032720.
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## 5. Intended Use:
The models GM310PP, GM321PP, and GM330PP are indicated for over the counter use in the temporary relief of pain associated with sore and aching muscles in the low back due to stain from exercise or normal household and work activities.
For the indication for use statement, please see the information attached hereafter.
## 6. Technological characteristics:
A comparison of the technological characteristics of the Gemore models GM310PP, GM320PP, GM321PP, and GM330PP and the predicate device has been performed. The results of this demonstrate that the Gemore model GM310PP, GM320PP, GM321PP, and GM330PP are equivalent to the marketed predicate device. The differences between the Gemore models GM310PP, GM321PP, GM321PP, and GM330PP and the predicate models are insignificant and do not affect the safety or effectiveness of the device.
### 7. Performance data:
Since there is not any significant change in the construction specification for the main stimulation unit GM310PP. GM321PP. GM321PP. and GM330PP. the performance testing reports according to ANSI/AAMI NS4, and the safety testing reports according to EN 60601-1, EN 60601-1-1, and EN 60601-1-2 as mentioned in the previous 510(k) submission documents are still available for this submission.
For the additional fixing part, the neoprene belt, the bio-compatibility testing report done according to ISO 10993-1 as well as the relevant standards are included in this submission.
## 8. Conclusions
Gemore Technology Inc, has demonstrated through its evaluation of the Gemore models GM310PP, GM320PP, GM321PP, and GM330PP that the devices are equivalent to the predicate devices with respect to intended use, technological characteristics, and safety and effectiveness.
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Image /page/2/Picture/1 description: The image shows the seal of the Department of Health & Human Services - USA. The seal is circular and contains the department's name around the perimeter. In the center of the seal is an abstract image of an eagle with its wings spread.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
APR 2 8 2006
Gemore Technology Co., Ltd. c/o Boden S.P. Lai 11 FL., NO. 29-5, Sec. 2 Chung Cheng E. RD. Tan Shui, Taipei Hsien, Taiwan
Re: K060222
Trade/Device Name: Low Back Pain Relief System, model numbers GM310PP, GM320PP, GM321PP, and GM330PP Regulation Number: 21 CFR 882.5890 Regulation Name: Transcutaneous electrical nerve stimulator for pain relief Regulatory Class: Class II Product Code: NUH Dated: January 27, 2006 Received: January 30, 2006
Dear Mr. Lai:
We have reviewed your Section 510(k) premarket notification of intent to market the devices referenced above and have determined the devices are 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 devices, 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.
If your devices are 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 vour devices can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your devices 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 devices comply 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
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Page 2 - Boden S.P. Lai
requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
This letter will allow you to begin marketing your devices as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence of your devices to a legally marketed predicate device results in a classification for your devices and thus, permits your devices to proceed to the market.
If you desire specific advice for your devices on our labeling regulation (21 CFR Part 801), please contact the Office of Compliance at (240) 276-0295. 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 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/industry/support/index.html.
Sincerely yours.
Herbert Lemmer
Mark N. Melkerson 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
510(k) Number (if known):
Device Name: Low Back Pain: Relief System / Model: GM310PP, GM320PP, GM321PP, and GM330PP.
Indications For Use:
- The model GM310PP, GM320PP, GM321PP, and GM321PP are intended for temporary relief of pain associated with sore and aching muscles in the lower back due to strain from exercise or normal household and work activities.
Prescription Use (Part 21 CFR 801 Subpart D) Over-The-Counter Use V (21 CFR 807 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
OR
Concurrence of CDRH, Office of Device Evaluation (ODE)
Hulut Lermuica
(Division Sign-Off) Division of General, Restorative, and Neurological Devices
Page 1 of
510(k) Number_KO60222
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.