The AptivaTM is a multifunctional transcutaneous electrical nerve stimulator (TENS) equipped with a surface electromyography and electroneurography. AptivaTM is indicated for symptomatic relief and management of chronic pain. intractable pain and/or as an adjunctive treatment for the management of posttraumatic pain. The dynamic surface electromyography and electroneurography system is used for biofeedback, relaxation training, and muscle re-education as well as monitoring and display of bioelectric signals produced by muscles, stimulate peripheral nerves, and monitor and display the electrical activity produced by nerves.
Device Story
Aptiva™ v2.13U is a multifunctional console-based system (mobile floor stand) providing TENS, EMG, and electroneurography (ENG) capabilities. Input: bioelectric signals from muscles and nerves via surface electrodes. Processing: system monitors, displays, and processes these signals for biofeedback, relaxation training, and muscle re-education; also provides electrical stimulation to peripheral nerves. Output: visual display of bioelectric activity and electrical nerve stimulation. Used in clinical settings by healthcare providers. Benefits: pain management, muscle re-education, and nerve activity monitoring.
Clinical Evidence
No clinical data provided. Performance testing consisted of bench testing, including electrical safety, electromagnetic compatibility, and design verification and validation testing. Results confirmed the device fulfills prospectively defined performance specifications.
Technological Characteristics
Console-based system with mobile floor stand, power supply, battery charger, and patient remote. Uses commercially available surface electrodes. Functions include TENS, EMG, and ENG. Models vary by feature set (Ballet, Flamenco, Hip-Hop, Jazz). Connectivity includes patient remote and printer (select models).
Indications for Use
Indicated for symptomatic relief and management of chronic pain, intractable pain, and adjunctive treatment of post-traumatic pain. Also indicated for biofeedback, relaxation training, muscle re-education, and monitoring/display of muscle and nerve bioelectric signals.
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}------------------------------------------------
# 510(k) Summary Lorenz Biotech S.p.A Aptiva™ v2.13U
#### 1. SPONSOR
AUG 2 4 2007
Lorenz Biotech S.p.A. Via Statale 12, 109/B/C 41036 Medolla Italy
| Contact Person: | Mr. Riccardo Isani |
|-----------------|---------------------------------|
| Email address: | Riccardo.isani@lorenzbiotech.it |
| Date Prepared: | August 6, 2007 |
#### 2. DEVICE NAME
| Proprietary Name: | Aptiva™ v2.13U |
|----------------------|-----------------------------------------------------------------------------------------------------------------------------------------------|
| Common/Usual Name: | Transcutaneous nerve stimulator (TENS)<br>Biofeedback device<br>Electromyography device (EMG)<br>Nerve conduction velocity measurement device |
| Classification Name: | Transcutaneous nerve stimulator (TENS)<br>Biofeedback device<br>Electromyography device (EMG)<br>Nerve conduction velocity measurement device |
#### 3. PREDICATE DEVICES
| Functionality | Predicate Device |
|------------------------------------|----------------------------------------|
| TENS | • Apex Medical Digital TENS (K021755) |
| | • GEMS-HV TENS (K032994) |
| | • Bioscope SD TENS (K970249) |
| | • Promax TENS (K022405) |
| | • NeuroTrain III (K003433) |
| Electromyography (EMG)/Biofeedback | • EMG Retrainer Dual Channel (K972487) |
| | • MES-9000/EMG System (K013399) |
| | • Synergy System (K981405) |
| Nerve conduction velocity (ENG) | Brevio (K010269) |
{1}------------------------------------------------
#### 4. DEVICE DESCRIPTION
The Aptiva™ v2.13U consists of a console on a mobile floor stand, power cord, battery charger, patient remote control, cables, and Manuals (User and Application). The Aptiva™ v2.13U is provided in four functional models (Ballet, Flamenco, Hip-Hop, and Jazz). EMG features are provided in the Ballet and Hip Hop models. One version of the Ballet model (Option Etoile) includes electroneurography (ENG) functions and a printer. Aptiva™ v2.13U uses commercially available electrodes. Models designated "Light" versions do not include the full treatment databases.
#### 5. INTENDED USE
The AptivaTM is a multifunctional transcutaneous electrical nerve stimulator (TENS) equipped with a surface electromyography and electroneurography.
AptivaTM is indicated for symptomatic relief and management of chronic pain. intractable pain and/or as an adjunctive treatment for the management of posttraumatic pain.
The dynamic surface electromyography and electroneurography system is used for biofeedback, relaxation training, and muscle re-education as well as monitoring and display of bioelectric signals produced by muscles, stimulate peripheral nerves, and monitor and display the electrical activity produced by nerves.
#### 6. TECHNOLOGICAL CHARACTERISTICS AND SUBSTANTIAL EQUIVALENCE
The Aptiva™ v2.13U is substantially equivalent to specified predicate devices based on intended use, indications for use, operational characteristics, and fundamental technological characteristics. Detailed side-by-side comparisons of the Aptiva™ v2.13U with cited predicate devices were included in the premarket notification and associated amendments.
#### 7. PERFORMANCE TESTING
Testing included in this premarket notification includes electrical safety, electromagnetic compatibility, and design verification and validation testing. No materials of the Aptiva™ v2.13U are in direct contact with treatment sites and therefore no biocompatibility testing was provided. Test results demonstrate that the Aptiva™ v2.13U fulfills the prospectively defined performance specifications.
{2}------------------------------------------------
Image /page/2/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo is a circular seal with the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. Inside the circle is an abstract image of an eagle.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
AUG 2 4 2007
Lorenz Biotech S.P.A. C/O Rosina Robinson, RN, MEd, RAC Medical Device Consultants, Inc. 49 Plain Street North Attleboro, MA 02760
Re: K061828
Trade Name: Aptiva 10 v2.13 Regulation Number: 21 CFR 882.5890 Regulation Name: Transcutaneous electrical nerve stimulator for pain relief Regulatory Class: Class II Product Code: GZJ, HCC, IKN, JXE Dated: August 6, 2007 Received: August 7, 2007
Dear Ms. Robinson:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration.
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.
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
{3}------------------------------------------------
### Page 2 - Rosina Robinson, RN, MEd, RAC
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 Center for Devices and Radiological Health's (CDRH's) Office of Compliance at (240) 276-0120. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). For questions regarding postmarket surveillance. please contact CDRH's Office of Surveillance and Biometric's (OSB's) Division of Postmarket Surveillance at 240-276-3474. For questions regarding the reporting of device adverse events (Medical Device Reporting (MDR)), please contact the Division of Surveillance Systems at 240-276-3464. 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 (240) 276-3150 or at its Internet address http://www.fda.gov/cdrh/industry/support/index.html.
Sincerely yours,
Mark N. Melkerson, M.S.
Mark N. Melkerson, M.S Director Division of General, Restorative and Neurological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{4}------------------------------------------------
## Indications for Use
510(k) Number (if known): K061828
Device Name: Lorenz Biotech Aptiva™ v2.13U
Indications for Use:
The Aptiva™ v2.13U is a multifunctional transcutaneous electrical nerve stimulator (TENS) equipped with a surface electromyography and electroneurography.
Aptiva™ is indicated for symptomatic relief and management of chronic pain, intractable pain and/or as an adjunctive treatment for the management of post-traumatic pain.
The dynamic surface electromyography and electroneurography system is used for biofeedback, relaxation training, and muscle re-education as well as monitoring and display of bioelectric signals produced by muscles, stimulate peripheral nerves, and monitor and display the electrical activity produced by nerves.
Prescription Use X (Part 21 CFR 801 Subpart D)
AND/OR
Over-The-Counter Use (21 CFR 807 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
sion Sign-Off Division of General. Restorative. and Neurological Devices
510(k) Number K061828
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.