The device is intended for use in surgical procedures including osteotomy, osteoplasty, periodontal surgery and implantation.
Device Story
SmarThor is an ultrasonic bone-cutting instrument used in dental surgical procedures. It utilizes ultrasonic vibration to perform bone cutting and polishing. The system consists of a unit body, a hand-piece, and a tip. It operates by supplying electric power and water to the hand-piece. The device is intended for use by dentists in a clinical setting. The ultrasonic output (24-32 kHz) allows for precise bone manipulation during osteotomy, osteoplasty, periodontal surgery, and implantation. The healthcare provider uses the device to perform surgical tasks, potentially benefiting the patient through controlled bone removal and site preparation.
Clinical Evidence
No clinical trials were conducted. Evidence of substantial equivalence is based on non-clinical bench testing (biocompatibility, electrical safety, and electromagnetic compatibility) and a comparison of technical specifications and performance characteristics with the predicate device. Post-market experience and literature were cited to support equivalence.
Technological Characteristics
Ultrasonic bone-cutting instrument; frequency range 24-32 kHz; max output 50W. Patient-contacting tip material: stainless steel. Electrical safety: Class 1, Type BF applied part. Standards: ISO 10993-5:2009 (biocompatibility), IEC 60601-1:1988/A1:1991/A2:1995 (electrical safety), IEC 60601-1-2:2007 (EMC). Power: 24V DC supply via external transformer (100-240V AC input).
Indications for Use
Indicated for surgical procedures including osteotomy, osteoplasty, periodontal surgery, and implantation in dental patients.
Regulatory Classification
Identification
A bone cutting instrument and accessories is a metal device intended for use in reconstructive oral surgery to drill or cut into the upper or lower jaw and may be used to prepare bone to insert a wire, pin, or screw. The device includes the manual bone drill and wire driver, powered bone drill, rotary bone cutting handpiece, and AC-powered bone saw.
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KI21620
# DEC 1 1 2012 1
## 510(k) Summary
#### Owner Information
1) Name: DMETEC CO., LTD.
2) Address: 402-603 Techno-Park, 193 Yakdae-Dong, Wonmi-Ku, Bucheon City, KOREA
- 3) Phone Number: 82-32-234-0011
- 4) FAX Number: 82-32-234-1444
- 5) Name of Contact Person: Hong-Geun, Lee
- 6) Date the Summary was Prepared: 05/11/2012
#### Device Information
- 1) Common Name: Bone cutting instrument and accessories
- 2) Trade Name: Ultrasonic Surgery
- 3) Model Number(s): SmarThor
- 4) Classification Name: Drill, Bone, Powered
- 5) Requlation Number: 872.4120
#### Predicate Device Information
- 1) 510(k) Number: K072146
- 2) Trade Name: EMS Piezon Master Surgery
- 3) Product Code: DZI
#### Description of the Device
This product is a device using by purpose of bone cutting, polishing when operate implant for dentist's office using ultrasonic vibration because it is supplied electric and water in outside
{1}------------------------------------------------
## Specifications of unit:
Model: Supply voltage: Supply frequency: Power input: Device life Output characteristics(Ultrasonic output):
Type of protection against electric shock: Degree of protection against electric shock: Specification of transformer Output characteristics of transformer:
SmarThor DC 24V 50 / 60 Hz 24 VA 5years Maximum output power with load:50W Frequency range available: 24-32kHz. Class 1, with transformer Applied part type BF AC100-250V, 50-60Hz DC 24V
#### Intended Use
The device is intended for use in surgical procedures including osteotomy, osteoplasty, periodontal surgery and implantation.
1) Product Name: Ultrasonic Surgery
2) Model: SmarThor
{2}------------------------------------------------
| | DMETEC<br>(SmarThor) | EMS<br>(Piezon Master Surgery) |
|--------------------------------|-------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------|
| 510(k) reference | | K072146 |
| Indication for use | The device is intended for use in surgical procedures including osteotomy, osteoplasty, periodontal surgery and implantation. | The EMS Piezon Master Surgery is an ultrasonic bone-cutting instrument for use in surgical dentistry |
| UNIT | | |
| Supply voltage | 24V DC | 100-240 V AC |
| Power consumption(max) | 50W max | 105VA |
| OUTPUT CHARACTERISTICS | | |
| Maximum output power with load | 50W | 25W |
| Frequency range available | 24-32 kHz | 24-32 kHz |
| TRANSFORMER | | |
| Input | 100-240 VAC, 50-60Hz | 100/220 VAC/50-60Hz |
| Output | 24V DC/ 2.7A | 24V AC/ 1.25A |
| MAIN COMPONENT | | |
| | 1 Unit Body<br>1 Hand-piece<br>1 Tip | 1 Unit Body<br>1 Hand-piece<br>5 Tips |
| MATERIAL | | |
| Tip(contact with patient) | Stainless steel | Stainless steel |
:
## Summary of Technical Characteristics Compared to the Predicate Device
{3}------------------------------------------------
### Brief Discussion of Nonclinical Tests (if applicable)
For biocompatibility, in vitro cytotoxicity test, skin sensitization test and oral mucosa irritation test were conducted. During the in vitro cytotoxicity test, no evidence of causing cell lysis or toxicity was found and it was evaluated as Grade 0 on the criteria of ISO 10993-5:2009. As for skin sensitization, sensitization scores were zero and the sensitization rates were observed 0% at 24 hours. As for oral mucosa irritation test, no mortality was observed, no changes in body weight were observed, and there were no differences in saline and test group.
For electric safety and electromagnetic compatibility, the device was tested according to IEC 60601-1:1988 + A1:1991 + A2:1995 and IEC 60601-1-2: 2007 and the device was found to meet the requirements of the standards.
Software validation report shows that the device is substantially equivalent and performs as it should.
### Brief Discussion of Clinical Tests (if applicable)
Comparison with the predicate indicates they are similar in functions and efficiency, and the post market experience proves that it is substantially equivalent.
#### Conclusion from Nonclinical and Clinical Tests (if applicable)
Biocompatibility tests, electric safety test and electromagnetic compatibility test show that the device meets the requirements of those standards.
Literatures and post market experience show that the device is substantially equivalent.
Comparison with the predicate device shows that the device has similar specification . and performance.
Thus, we conclude that SmarThor are substantially equivalent to the predicate device.
{4}------------------------------------------------
Image /page/4/Picture/0 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES • USA" around the perimeter. Inside the circle is a stylized symbol resembling an abstract human figure or a caduceus, composed of three thick, curved lines.
#### DEPARTMENT OF HEALTH & HUMAN SERVICES
Public Health Service
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-002
December 11, 2012
DMETEC Company, Limited C/O Mr. Daniel Nam General Manager PATS Corporation 4568 West 155 Street, Suite 104 Los Angeles, California 90004
Re: K121620
Trade/Device Name: Ultrasonic Surgery (SmarThor) Regulation Number: 21 CFR 872.4120 Regulation Name: Bone Cutting Instrument and Accessories Regulatory Class: II Product Code: DZI Dated: November 14, 2012 Received: November 23, 2012
Dear Mr. Nam:
We have reviewed vour 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.
{5}------------------------------------------------
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); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); 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.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please go to http://www.fda.gov/AboutFDA/CentersOffices/CDRH/CDRHOffices/ucm115809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. 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,
Kwame O. Ulmer
Anthony D. Watson, B.S., M.S., M.B.A. Director Division of Anesthesiology, General Hospital, Respiratory, Infection Control and Dental Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{6}------------------------------------------------
## Indications for Use
510(k) Number (if known): K121620
Device Name: Ultrasonic Surgery (SmarThor)
Indications For Use: The device is intended for use in surgical procedures including osteotomy, osteoplasty, periodontal surgery and implantation.
Prescription Use (Part 21 CFR 801 Subpart D) AND/OR
Over-The-Counter Use (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
· Concurrence of CDRH, Office of Device Evaluation (ODE)
2012.12.11 Susan Runner DDS, MA -1:3:22:33 -05'00'
(Division Sign-Off) Division of Anesthesiology, General Hospital Infection Control, Dental Devices
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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.