K133238 · Syneron Medical, Ltd. · OHV · Apr 10, 2014 · General, Plastic Surgery
Device Facts
Record ID
K133238
Device Name
CONTOUR I V3.1 SYSTEM
Applicant
Syneron Medical, Ltd.
Product Code
OHV · General, Plastic Surgery
Decision Date
Apr 10, 2014
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 878.4590
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The Contour I V3.1 System delivers focused ultrasound energy that can disrupt subcutaneous adipose tissue (SAT) to provide a non-invasive approach to achieve a desired aesthetic effect. It is intended for non-invasive reduction in abdominal circumference.
Device Story
Contour I V3.1 is a focused ultrasound stimulator for aesthetic body contouring. System includes a console with computer and a therapeutic ultrasonic transducer. Transducer converts electrical signals into mechanical (acoustical) energy to selectively disrupt subcutaneous adipose tissue (SAT) while sparing neighboring structures like blood vessels, nerves, and muscle. Device features a tracking and guidance system providing real-time optical and acoustic feedback during treatment. Operated by clinicians in a clinical setting. Output is focused ultrasound energy; healthcare providers use the system to achieve abdominal circumference reduction. Benefits include non-invasive fat reduction without surgery or anesthesia.
Clinical Evidence
Multicenter, randomized, controlled study of 150 subjects (18-65 years old). Primary endpoint: difference in abdominal circumference reduction between device and control phases. Results showed mean reduction of -2.0 cm (p=0.0464) compared to the -1.5 cm threshold. ANCOVA model confirmed significant treatment effect (p=0.002). No device-related serious adverse events reported.
Technological Characteristics
System console with computer and piezoelectric ceramic acoustic transducer. Delivers focused ultrasound energy. Includes real-time optical and acoustic tracking/guidance system. Electrical safety per IEC 60601-1, IEC 60601-1-2, and IEC 60601-2-37. Biocompatibility per ISO 10993.
Indications for Use
Indicated for non-invasive reduction in abdominal circumference in adults aged 18-65.
Regulatory Classification
Identification
A Focused Ultrasound Stimulator System for Aesthetic Use is a device using focused ultrasound to produce localized, mechanical motion within tissues and cells for the purpose of producing either localized heating for tissue coagulation or for mechanical cellular membrane disruption intended for noninvasive aesthetic use.
Special Controls
*Classification.* Class II (special controls). The special control for this device is FDA's “Class II Special Controls Guidance Document: Focused Ultrasound Stimulator System for Aesthetic Use.” See § 878.1(e) for the availability of this guidance document.
Predicate Devices
Medicis Technologies Corporation LipoSonix System Model 2 (K112626)
Submission Summary (Full Text)
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K133238 Page 1 of 4
#### 510(k) SUMMARY
#### Syneron Medical Ltd.'s Contour | System
# APR 1 0 2014
Submitter's Name, Address, Telephone Number, Contact Person and Date Prepared
> Syneron Medical Ltd. P.O.B. 550 Industrial Zone Tavor Building Yokneam Illit, 20692 Israel
Phone: 972-73-244-2200 Facsimile: 972-73-244-2202
Contact Person: Ruthie Amir, MD, Global Vice President of Clinical Affairs
Date Prepared: April 7, 2014
# Name of Device
Syneron Contour I V3.1 System
#### Common or Usual Name
Focused Ultrasound Stimulator System for Aesthetic Use
## Classification
Focused Ultrasound Stimulator System for Aesthetic Use
21 CFR 878.4590, Class II, product code OHV
#### Predicate Devices
Medicis Technologies Corporation LipoSonix System Model 2 (K112626)
## Intended Use / Indications for Use
The Contour I V3.1 System delivers focused ultrasound energy that can disrupt subcutaneous adipose tissue (SAT) to provide a non-invasive approach to achieve a desired aesthetic effect. It is intended for non-invasive reduction in abdominal circumference.
## Device Description
The Contour I is comprised of multiple components, including the control unit and ultrasonic transducer. The Contour I V3.1 selectively targets subcutaneous adipose tissue via focused ultrasound for the purpose of non-invasive aesthetic body contouring. The transducer is an electro-mechanical device that converts an electrical signal into mechanical (acoustical) energy. The operating parameters of the Contour I achieve selective disruption of adipose tissue without damaging neighboring tissues such as blood vessels, nerves, or muscle.
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# Technological Characteristics
The Contour I V3.1 is comprised of the system console, including the computer, and therapeutic ultrasonic transducer delivers the focused ultrasound energy beam to the targeted treatment area, and real-time optical and acoustic feedback on the · treatment is provided via the tracking and guidance system. The transducer functionality is based on the piezoelectric ceramic acoustics core in the transducer.
# Performance Data
The following nonclinical performance testing was conducted to support the substantial equivalence of the Contour I to the predicate device, consistent with FDA's "Class II Special Controls Guidance Document: Focused Ultrasound Stimulator System for Aesthetic Use" (2011). In all instances, the Contour I functioned as intended.
- Biocompatibility testing in accordance with ISO 10993 for skin irritation, sensitization, . cytotoxicity testing supported the biocompatibility of the patient-contacting components of the device.
- . Beam profile testing demonstrated that the acoustic energy is delivered and concentrated in the desired target location, at a focal depth highly similar to that of the predicate device.
- . Acoustic power testing demonstrated that the acoustic power of the transducers is highly predictable with low variability.
- . In vitro acoustic and thermal measurements and computational modeling demonstrated the safety of non-targeted tissues both proximal and distal to the targeted region.
- Software verification and validation was performed, and demonstrated that the . software performs as intended.
- Electromagnetic compatibility (IEC 60601-1, IEC 60601-1-2) and electromagnetic . immunity testing was conducted and demonstrated the electrical safety of the device. Electrical and mechanical safety of the device was evaluated per the related clauses of IEC 60601-2-37.
- In vivo and ex vivo testing in the animal model was performed. In addition, ex vivo . testing on the Contour I family of devices demonstrated the treatment effects of the Contour I, and supported its safety and efficacy profile for the intended use.
In addition clinical evaluation of the device in the intended population was performed in a multicenter, randomized, controlled study. The study evaluated the safety and effectiveness of the Contour I V3.1 in abdominal circumference reduction relative to no treatment (control) in 150 subjects (safety population) separated into two groups; 118 subjects were included in Group 1 and 32 subjects were included in Group 2. The safety analysis included all subjects for whom a Device or Control procedure was initiated (i.e., after randomization), including subjects from both Group 1 and Group 2. Subjects randomized into Group 1 underwent three study phases-control, treatment, and follow-up. The control phase and device phase
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results for each Group 1 subject were compared to evaluate the device effect compared to the control phase (no device) in reducing abdominal circumference. Comparatively, subjects randomized to Group 2 underwent two study phases-treatment and follow up (i.e., no control). Group 2 subjects were included in the study to blind the assessor to the subject's treatment group at the time of circumference measurement, and the primary and secondary confirmatory analyses of the study were based on Group 1 data only. To further ensure blinding and to minimize the potential for bias, the individual measuring the subject's abdominal circumference was not the same person who treated the subject, and was blinded to the subject's treatment group.
Group 2 subjects received device treatment for four weeks (device phase) while Group 1 subjects received no treatment for six weeks (control phase) followed by treatment for four weeks; subjects in both groups were measured at the same time points, i.e., evely two weeks. After the first four weeks, Group 2 ended its treatment phase while Group 1 began treatment for four weeks. During Group 1's treatment phase, subjects' abdomen circumferences continued to be measured every 2 weeks in both groups. At the end of Group 1's treatment phase, both groups continued to be measured for an additional 3 months (12 weeks). During these 3 months (12 weeks) of follow up, measurements were performed every 4 weeks in both groups.
The study included subjects between age 18 and 65 who met all inclusion criteria and none of the exclusion criteria. The majority of study subjects were Caucasian females of skin types II through IV. Mean age was 44.6 years. Baseline measurements for the study subjects measured 2.7 cm in mean abdominal fat thickness, 95.1 cm in horizontal midline circumference, 69.6 kq in mean weight, and 25.5 kg/m² in average BMI. The primary effectiveness endpoint measured the difference between the change in circumference for device and control phases of the intent to treat (ITT) primary endpoint population (n=109) relative to the protocol-specified clinically meaningful threshold of -1.5 cm. Two secondary endpoints were also assessed in the study: response rate in comparison to a clinically significant reduction (defined as -1.5 cm), and circumference reduction results achieved in the population of subjects who maintained stable weight during the control phase of the study. The safety endpoint assessed all adverse events and serious adverse events occurring during the study.
The study results for the primary endpoint demonstrated an average circumference reduction of -2.0 cm, which was statistically significant compared to the threshold of -1.5 cm (p=0.0464), as shown in the table below.
| Parameter | Mean<br>(cm) | Median | Lower<br>95%<br>CL | Upper<br>95%<br>CL | N | P-Value of<br>Comparison<br>to -1.5 cm |
|----------------------------------------------------------------------------|--------------|--------|--------------------|--------------------|----|----------------------------------------|
| Change in Circumference in Control<br>Phase | -0.48 | -0.30 | -0.75 | -0.22 | 93 | |
| Change in Circumference in Device<br>Phase | -2.51 | -2.0 | -2.94 | -2.09 | 93 | |
| Difference between Control and Device<br>Phases in Circumference Reduction | -2.02 | -1.7 | -2.53 | -1.52 | 93 | 0.0464 |
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Further, when using analysis of covariance (ANCOVA), results continued to confirm the circumference reduction results observed in the primary endpoint analysis. Based on this model adjusting for weight change in the ITT population, the Contour I treatment effect (mean circumference reduction of -1.9 cm) remained statistically significant (p=0.002) and its 95% upper confidence limit was at -1.7 cm, which exceeded the minimum threshold reduction of -1.5 cm.
Results for the secondary endpoints and sensitivity analyses also supported the circumference reduction effects with Contour I treatment. With all missing data imputed with a zero reduction, the effect of device treatment on circumference reduction remained greater than -1.5 cm. The treatment was administered without anesthetic, and subjects reported a low level of pain. No device related serious adverse events were reported and most adverse events were non-serious and resolved after no or remedial treatment.
# Substantial Equivalence
The Contour I has the same intended use and similar indications, technological characteristics, and principles of operation as its predicate device. The technological differences between the Contour I and its predicate device mainly consist of differences in ultrasonic frequencies. However, the devices present comparable energy densities, total energy doses, and focal depths. Further, the additional tracking and guidance feature with the Contour I device is designed to contribute to the overall safety profile of the device. Therefore, the technological differences between the Contour I and its predicate device do not raise any new types of .safety or effectiveness questions. Nonclinical studies of the Contour I have evaluated the performance of the Contour I. Thus, the Contour I is substantially equivalent.
# Conclusion
Syneron's Contour I V3.1 System is a Focused Ultrasound Stimulator System for Aesthetic Use Class II device that has been evaluated in nonclinical testing in accordance with FDA's Special Controls Guidance Document. Testing demonstrated that the device performs as intended. The Contour I V3.1 device is substantially equivalent to its predicate.
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# DEPARTMENT OF HEALTH & HUMAN SERVICES
Public Health Service
Food and Drug Administration 10905 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
April 10, 2014
Syncron Medical Ltd. % Ms. Janice Hogan Hogan Lovells US LLP 1835 Market Street, 29th Floor Philadelphia, Pennsylvania 19103
Re: K133238
Trade/Device Name: Syneron Contour I V3.1 System Regulation Number: 21 CFR 878.4590 Regulation Name: Focused ultrasound stimulator system for aesthetic use Regulatory Class: Class II Product Code: OHV Dated: March 4, 2014 Received: March 4, 2014
Dear Ms. Hogan:
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 10 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 complics 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); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set
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Page 2 - Ms. Janice Hogan
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 Small Manufacturers, International and Consumer Assistance at its tollfree number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/Resourcesfor YowIndustry/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 Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm.
Sincerely yours.
# David Krause -S
for
Binita S. Ashar, M.D., M.B.A., F.A.C.S. Acting Director Division of Surgical Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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| DEPARTMENT OF HEALTH AND HUMAN SERVICES |
|-----------------------------------------|
| Food and Drug Administration |
# Indications for Use
Form Approved: OMB No. 0910-0120 Expiration Date: January 31, 2017 See PRA Statement on last page.
K133538
Device Name
Contour 1 v3.1 System
Indications for Use (Describe)
510(k) Number (if known)
The Contour I V3.1 System delivers focused ultrasound energy that can disrupt subcutaneous adipose tissue (SAT) to provide a non-invasive a desired aesthelic effect. It is intended for non-invasive reduction in abdominal circumference
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)
FORM FDA 3881 (1/14)
11 Pribliching Sersion 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1-1
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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.