K173759 · Solta Medical · GEI · Jan 8, 2018 · General, Plastic Surgery
Device Facts
Record ID
K173759
Device Name
Thermage CPT System and Accessories
Applicant
Solta Medical
Product Code
GEI · General, Plastic Surgery
Decision Date
Jan 8, 2018
Decision
SESE
Submission Type
Special
Regulation
21 CFR 878.4400
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The radiofrequency energy delivery components of the Thermage CPT System and Accessories are indicated for use in: - Dermatologic and general surgical procedures for electrocoagulation and hemostasis; - Non-invasive treatment of periorbital wrinkles and rhytids including upper and lower eyelids; - Non-invasive treatment of wrinkles and rhytids. The simultaneous application of radiofrequency energy and skin vibration by the Thermage CPT System and Accessories are indicated for use in: - Dermatologic and general surgical procedures for electrocoagulation and hemostasis; - Non-invasive treatment of periorbital wrinkles and rhytids: - Non-invasive treatment of wrinkles and rhytids; - Temporary improvement in the appearance of cellulite; - Relief of minor muscle aches and pains; - Relief of muscle spasms; - Temporary improvement of local circulation (i.e., blood circulation).
Device Story
Thermage CPT System delivers radiofrequency (RF) energy to tissue via disposable tips while conductively cooling epidermis; system monitors skin contact and impedance during treatment. Device operates via manual or footswitch control; provides RF energy through single or multiple pass stamping motions. Used in clinical settings by healthcare professionals. Output consists of controlled RF energy and mechanical skin vibration. Benefits include non-invasive wrinkle reduction, cellulite appearance improvement, and relief of muscle-related discomfort. System includes LCD/touchscreen interface for clinician control.
Clinical Evidence
Bench testing only. Verification and validation testing confirmed device performance against requirements: treatment tip reliability, latching mechanism, fluid barrier integrity, absence of sharp features, dielectric strength, and burst pressure (minimum 12 psi).
Technological Characteristics
Electrosurgical unit; 6.78 MHz RF energy; 400W max power. Features disposable treatment tips with conductive cooling and vibration. Interface: LCD/touchscreen. Operation: Manual or footswitch. Connectivity: Not specified. Sterilization: Not specified.
Indications for Use
Indicated for dermatologic/general surgical electrocoagulation and hemostasis, non-invasive treatment of periorbital and general wrinkles/rhytids, temporary improvement of cellulite appearance, relief of minor muscle aches/pains and spasms, and temporary improvement of local blood circulation.
Regulatory Classification
Identification
An electrosurgical cutting and coagulation device and accessories is a device intended to remove tissue and control bleeding by use of high-frequency electrical current.
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January 8, 2018
Solta Medical Inc. Mr. Ken Nehmer, BSEET Director, Regulatory Affairs 351 Buena Vista Avenue E Unit 501E San Francisco, California 94117
Re: K173759
Trade/Device Name: Thermage CPT System and Accessories Regulation Number: 21 CFR 878.4400 Regulation Name: Electrosurgical Cutting and Coagulation Device and Accessories Regulatory Class: Class II Product Code: GEI Additional product Code: ISA Dated: December 7, 2017 Received: December 11, 2017
Dear Mr. Nehmer:
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. 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 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
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801); medical device reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice 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.
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 the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
For comprehensive regulatory information about medical devices and radiation-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,
# Jennifer R. Stevenson -S3
For Binita S. Ashar, M.D., M.B.A., F.A.C.S. Director Division of Surgical Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# Indications for Use
510(k) Number (if known) K173759
#### Device Name
Thermage CPT System and Accessories
### Indications for Use (Describe)
The radiofrequency energy delivery components of the Thermage CPT System and Accessories are indicated for use in:
- · Dermatologic and general surgical procedures for electrocoagulation and hemostasis;
- · Non-invasive treatment of periorbital wrinkles and rhytids including upper and lower eyelids;
- · Non-invasive treatment of wrinkles and rhytids.
The simultaneous application of radiofrequency energy and skin vibration by the Thermage CPT System and Accessories are indicated for use in:
- · Dermatologic and general surgical procedures for electrocoagulation and hemostasis;
- · Non-invasive treatment of periorbital wrinkles and rhytids:
- · Non-invasive treatment of wrinkles and rhytids;
- · Temporary improvement in the appearance of cellulite;
- Relief of minor muscle aches and pains;
- · Relief of muscle spasms;
- · Temporary improvement of local circulation (i.e., blood circulation).
| Type of Use (Select one or both, as applicable) | <table><tr><td>☑ Registration Use (Part 21 CFR 601 Subpart D)</td><td>☐ Over-The-Counter Use (21 CFR 601 Subpart C)</td></tr></table> | ☑ Registration Use (Part 21 CFR 601 Subpart D) | ☐ Over-The-Counter Use (21 CFR 601 Subpart C) |
|-------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------|-----------------------------------------------|
| ☑ Registration Use (Part 21 CFR 601 Subpart D) | ☐ Over-The-Counter Use (21 CFR 601 Subpart C) | | |
> Prescription Use (Part 21 CFR 801 Subpart D)
| | Over-The-Counter Use (21 CFR 801 Subpart C)
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# 510(k) SUMMARY
# 1. General Information Submitter:
Contact Person:
| Solta Medical Inc.<br>11720 North Creek Pkwy N., Suite 100<br>Bothell, WA 98011<br>Tel: 510-259-5299 | Mr. Ken Nehmer, BSEET<br>Director, Regulatory Affairs<br>351 Buena Vista Avenue E, Unit 501E<br>San Francisco, CA 94117<br>Tel: 415-297-0408<br>ken.nehmer@bausch.com |
|------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------|
Revised: December 26, 2017
# 2. Names
| Device Name | Thermage CPT System and Accessories |
|------------------------|-------------------------------------------------------------------------------------------------------------------------------|
| Classification Name | Electrosurgical Cutting and Coagulation Device and<br>Accessories |
| Common Name: | Electrosurgical Unit and Accessories |
| CFR References: | 21 CFR 878.4400 |
| Product Codes: | GEI/ISA |
| Performance Standards: | No performance standards for this device have been<br>promulgated under Section 514, Federal Food, Drug and<br>Cosmetics Act. |
# 3. Predicate Device
Thermage ThermaCool CPT cleared under K090580 on June 26, 2009 Thermage ThermaCool CPT cleared under K132431 on September 6, 2013
# 4. Product Description
The subject of this Special 510(k) submission is for the Thermage CPT System and Accessories which is substantially equivalent to the predicate Thermage CPT System and Accessories.
The Thermage CPT System delivers radio frequency energy for selective coagulation of tissue while conductively cooling the epidermis. The Thermage CPT System delivers energy from the disposable tip to the patient. The System and its Handpiece monitor skin contact
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during treatment. The System employs radio frequency tuning to provide radio frequency energy across a range of impedances for delivery to the patient through single and multiple pass stamping motions of the tip.
- 5. Indications for Use
The radiofrequency energy delivery components of the Thermage CPT System and Accessories are indicated for use in:
- Dermatologic and general surgical procedures for electrocoagulation and ● hemostasis:
- . Non-invasive treatment of periorbital wrinkles and rhytids including upper and lower eyelids;
- Non-invasive treatment of wrinkles and rhytids. .
The simultaneous application of radiofrequency energy and skin vibration by the Thermage CPT System and Accessories are indicated for use in:
- Dermatologic and general surgical procedures for electrocoagulation and ● hemostasis;
- . Non-invasive treatment of periorbital wrinkles and rhytids;
- Non-invasive treatment of wrinkles and rhytids; ●
- Temporary improvement in the appearance of cellulite; .
- . Relief of minor muscle aches and pains;
- Relief of muscle spasms;
- Temporary improvement of local circulation (i.e., blood circulation).
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- 6. Summary of Intended Use and Technological Characteristics
The technological characteristics of the Thermage CPT System are substantially equivalent to those of the predicate device.
| Characteristic | Subject Device<br>Thermage CPT System and Accessories | K090580 and<br>K132431 |
|--------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------|
| Intended Use | Dermatologic and general surgical procedures for<br>electrocoagulation and hemostasis, non-invasive<br>treatment of periorbital wrinkles and rhytids. | Identical to<br>subject<br>device |
| Indications for<br>Use | The radiofrequency energy only delivery components of<br>the Thermage CPT System and Accessories are indicated<br>for use in:<br>Dermatologic and general surgical procedures for<br>electrocoagulation and hemostasis; Non-invasive treatment of periorbital wrinkles<br>and rhytids including upper and lower eyelids; Non-invasive treatment of wrinkles and rhytids. The simultaneous application of radio frequency energy<br>and skin vibration by the Thermage CPT System and<br>Accessories is indicated for use in: Dermatologic and general surgical procedures for<br>electrocoagulation and hemostasis; Non-invasive treatment of periorbital wrinkles and<br>rhytids; Non-invasive treatment of wrinkles and rhytids; Temporary improvement in the appearance of<br>cellulite; Relief of minor muscle aches and pains; Relief of muscle spasms; Temporary improvement of local circulation (i.e.,<br>blood circulation). | Identical to<br>subject<br>device |
| Maximum<br>Average Power | 400W | Identical to<br>subject<br>device |
| User interface | LCD / Touchscreen Technology for user interaction and<br>controls | Identical to<br>subject<br>device |
| Mode of<br>Operation | Manual or Footswitch | Identical to<br>subject<br>device |
| Frequency | 6.78 MHz | Identical to<br>subject<br>device |
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- 7. Safety and Effectiveness Information
The review of the intended use and technical characteristics provided demonstrates the Thermage CPT System and Accessories is substantially equivalent to the predicate device.
- 8. Summary of the design control activities (verification/validation testing) to support the proposed changes
Risk analysis was conducted to assess the impact of modification on device and the acceptance criteria of the testing.
| Summary of Testing | |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------|
| Requirement | Results |
| The treatment tip design shall be capable of delivering up to the maximum REP<br>count, and shall be verified or validated to show with 90% confidence that the tips<br>will do so with a minimum of 90% reliability. | Pass |
| Latching of the Treatment Tip onto the handpiece shall be accomplished with a snap<br>fit or latching tab. | Pass |
| The treatment tip design shall include a barrier against any fluid from leaking inside<br>the tip and possibly causing an electrical short. | Pass |
| Treatment tips shall exhibit no external features that are sharp or that could puncture<br>or tear nitrile gloves. | Pass |
| Treatment Tip design must maintain sufficient dielectric strength and integrity over<br>the anticipated number of treatments at its highest treatment level setting in an actual<br>or simulated use environment and include, where appropriate, applicable accessories<br>such as Coupling Fluid, etc. | Pass |
| The treatment tip design shall include a tamper resistant feature that is identifiable. | Pass |
| Treatment tip assembly must withstand a minimum of 12 psi internal burst pressure. | Pass |
- 9. Conclusion
The Thermage CPT System shares the same indications for use, design features, and functional features, and thus is substantially equivalent to, the predicate device. Non-clinical test results demonstrate the Thermage CPT System is substantially equivalent to the predicate device and no new issues of safety or effectiveness have been raised.
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.