K113655 · Nakanishi, Inc. · EFB · Mar 5, 2012 · Dental
Device Facts
Record ID
K113655
Device Name
TI-MAX X TURBINE
Applicant
Nakanishi, Inc.
Product Code
EFB · Dental
Decision Date
Mar 5, 2012
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 872.4200
Device Class
Class 1
Indications for Use
The Ti-Max X Turbine is an air-powered dental handpiece intended for removing carious material, reducing hard tooth structure, cavity preparation, finishing tooth preparations and restorations and polishing teeth.
Device Story
Ti-Max X Turbine is an air-powered high-speed dental handpiece; operates at 300,000 to 450,000 RPM using 0.25-0.30 MPa air pressure. Input is compressed air from dental unit; output is mechanical rotation of a friction grip bur for tooth structure removal or polishing. Features include non-optic, fiber-optic, and LED illumination models; water jet for cooling at bur point; one-touch quick connect coupling system. Used in dental clinics by dentists/dental staff. Connects directly to dental unit or via swivel adapter. Benefits include efficient tooth preparation and restoration finishing.
Clinical Evidence
Bench testing only. Conformance to applicable international and internal technical standards verified via bench testing.
Technological Characteristics
Air-powered turbine; 300,000-450,000 RPM; torque >= 0.05Ncm; noise <= 80dBA. Friction grip bur (ISO 1797-1). Air pressure 0.25-0.30 MPa. Connections: 4-hole, 5-hole (ISO 9168), or swivel adapter (ISO 9168, type 2). Features water jet, fiber-optic/LED lighting. Quick connect coupling system.
Indications for Use
Indicated for dental procedures including removal of carious material, reduction of hard tooth structure, cavity preparation, finishing of preparations and restorations, and tooth polishing. For use by dental professionals.
Regulatory Classification
Identification
A dental handpiece and accessories is an AC-powered, water-powered, air-powered, or belt-driven, hand-held device that may include a foot controller for regulation of speed and direction of rotation or a contra-angle attachment for difficult to reach areas intended to prepare dental cavities for restorations, such as fillings, and for cleaning teeth.
Predicate Devices
Tiger 500 Series High Speed Handpieces and Attachment (K102517)
Submission Summary (Full Text)
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K113655
MAR - 5 2012
。
関連項目
## 5. 510(k) SUMMARY
. . ...
| Submitter: | Nakanishi, Inc.<br>700 Shimohinata<br>Kanuma-Shi, Tochigi-Ken Japan 322-8666 |
|-------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Contact Person: | Mr. Toshihiko Shinozaki<br>Assistant Manager, R&D Dept. Pharmaceutical Affairs Gr.<br>TEL: +81-0289-64-3380<br>FAX: 0289(62)6665<br>t-shinozaki@nsk-nakanishi.co.jp |
| Date Prepared: | December 1, 2011 |
| Trade Name: | Ti-Max X Turbine |
| Common Name: | High Speed Air Turbine Handpiece |
| Classification Name: | 872.4200 EFB Handpiece, Air-Powered, Dental |
| Predicate Device: | K102517 - Thunder Tiger, Inc., Tiger 500 Series High Speed Handpieces and<br>Attachment |
| Device Description: | The Ti-Max X Turbine is an air-powered high-speed dental handpiece capable of<br>reaching rotational speeds of 300,000 to 450,000 revolutions per minute. The device<br>includes non-optic, fiber-optic, and LED models. Models are available to connect<br>directly to the couplings of specific brands. |
| Statement of<br>Intended Use: | The Ti-Max X Turbine is an air-powered dental handpiece intended for removing<br>carious material, reducing hard tooth structure, cavity preparation, finishing tooth<br>preparations and restorations and polishing teeth. |
| Summary of<br>Technological<br>Characteristics: | The Ti-Max X Turbine is intended for use with a friction grip bur that conforms to<br>ISO 1797-1 standard. Recommended supply air pressure is between 0.25 and 0.30<br>MPa, which results in high-speed bur rotation.<br>The Ti-Max X Turbine is capable of achieving high-speed rotation of 300,000 to<br>450,000 revolutions per minute when provided with a supply air pressure of 0.25 to<br>0.30 MPa (36 - 44 psi). This provides a torque of at least 0.05Ncm, while<br>generating a noise level of 80dBA or less. Also available are models with fiber<br>optic or LED lighting. All models include a water jet that is directed to the bur<br>point.<br>The Ti-Max X Turbine has a one-touch quick connect coupling system. The Ti-Max<br>X Turbine can connect directly to the dental unit, or a swivel adapter can be used.<br>Direct connection can be made with 4- and 5-hole connections that meet ISO 9168<br>specifications. A swivel adapter is connected between the handpiece and hose in the<br>case of 4-, 3-, and 2-hole connections, also in compliance with ISO 9168, type 2. In<br>addition, the Ti-Max X Turbine has models available that are designed to connect<br>directly to the couplings of other brands. |
Section 5: Page 1 of 2
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Performance Testing:
The Ti-Max X Turbine was developed and is produced under consideration of all applicable technical standards, internal specifications, and FDA guidance documents. The product's conformance with applicable international and internal standards was verified in the course of bench testing.
Conclusion:
Nakanishi considers the Ti-Max X Turbine to be substantially equivalent to the predicate device listed above. This conclusion is based on the similarities in intended use, principles of operation, functional design, and established medical use, and does not raise new issues of safety and effectiveness.
Image /page/1/Picture/4 description: The image shows a black and white drawing of a bird in flight. The bird has long, pointed wings and a long tail. The bird's body is slender, and its head is small. The bird is flying against a white background. The image is simple and elegant.
Section 5: Page 2 of 2
Headquarters : 700 Shimohihata Kanuma-shi Tochigi 322-8666, Japan NAKANISHI INC. Tokyo Office : MY Building 1-13-3 Ueno Taito-ku Tokyo 110-0005, Japan www.nsk-inc.com
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Image /page/2/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a stylized eagle with three stripes representing the agency's mission to promote health, well-being, and human services. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged in a circular fashion around the eagle symbol.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room -WO66-G609 Silver Spring, MD 20993-0002
Nakanishi. Inc. C/O Ms. Diane Rutherford Regulatory Engineer Ken Block Consulting 1201 Richardson Drive, Suite 280 Richardson, Texas 75080
MAR - 5 2012
Re: K113655
Trade/Device Name: Ti-Max X Turbine Regulation Number: 21 CFR 872.4200 Regulation Name: Dental Handpiece and Accessories Regulatory Class: I Product Code: EFB Dated: December 1, 2011 Received: December 12, 2011
Dear Ms. Rutherford:
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.
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## Page 2 - Ms. Rutherford
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,
Nh for
Anthony D. Watson, B.S., M.S., M.B.A. Director Division of Anesthesiology, General Hospital, Infection Control and Dental Devices Office of Device Evaluation Center for Devices and Radiological Health
## Enclosure
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## INDICATIONS FOR USE
510(k) Number: K113655
Device Name: Ti-Max X Turbine
Indications for Use:
The Ti-Max X Turbine Series is an air-powered dental handpiece intended for removing carious material, reducing hard tooth structure, cavity preparation, finishing tooth preparations and restorations and polishing teeth.
Prescription Use *X*
(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 CDHR, Office of Device Evaluation (ODE)
(Division Sign-Off)
Division of Anesthesiology, General Hospital
Infection Control, Dental Devices
| <strong>Labels</strong> | <strong>Values</strong> |
|-------------------------|-------------------------|
| 510(k) Number: | K113658 |
Page 1 of 1
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.