K041721 · Hoya Photonics, Inc. · GEX · Aug 5, 2004 · General, Plastic Surgery
Device Facts
Record ID
K041721
Device Name
LVI AESTHETIC LASER
Applicant
Hoya Photonics, Inc.
Product Code
GEX · General, Plastic Surgery
Decision Date
Aug 5, 2004
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 878.4810
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The LVI lase is intended for incision, excision, ablation, vaporization, and/or coagulation of oral soft tissue (including marginal and interdental gingival and epithelial lining of free gingiva). It is also intended for light activation for bleaching materials for teeth whitening, and laser-assisted bleaching/whitening for teeth whitening.
Device Story
LVI lase is a dental diode laser system used by dental professionals in clinical settings. It functions by delivering laser energy to oral soft tissues to perform surgical procedures including incision, excision, ablation, vaporization, and coagulation (hemostasis). Additionally, the device provides light energy for the activation of bleaching materials or direct laser-assisted teeth whitening. The clinician operates the device to target specific soft tissue areas or whitening agents, with the laser output facilitating precise tissue management or chemical activation for cosmetic whitening. The device benefits patients by providing a minimally invasive alternative to traditional surgical instruments for soft tissue management and an efficient method for dental whitening.
Clinical Evidence
No clinical data provided; bench testing only.
Technological Characteristics
Dental diode laser system; operates as a surgical instrument for soft tissue management and light-activated teeth whitening. Technical specifications and materials are consistent with legally marketed diode laser surgical instruments. Energy source is a diode laser; device is intended for professional clinical use.
Indications for Use
Indicated for incision, excision, ablation, vaporization, and hemostasis of oral soft tissue in patients requiring dental soft tissue procedures (e.g., biopsies, frenectomy, gingivectomy, implant recovery, pulpotomy, lesion removal) and for light-activated or laser-assisted teeth whitening.
Regulatory Classification
Identification
(1) A carbon dioxide laser for use in general surgery and in dermatology is a laser device intended to cut, destroy, or remove tissue by light energy emitted by carbon dioxide.(2) An argon laser for use in dermatology is a laser device intended to destroy or coagulate tissue by light energy emitted by argon.
Predicate Devices
DioDent Dental Laser System by HOYA ConBio
Aurora by Premier Laser System
Twilite or Dentek LD-15 Diode Laser System by BioLase Technologies
DioLase ST by American Medical Technology
Submission Summary (Full Text)
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AUG = 5 2004
K041721
## 9. 510(k) Summary
| Company: | HOYA ConBio (formerly Continuum Electro-Optics, Inc.)<br>47733 Fremont Blvd<br>Fremont, CA 94538<br>(800) 532-1064 phone<br>(510) 445-4550 fax |
|----------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Contact: | Jim Green<br>Vice President of Engineering |
| Device Trade Name: | LVI lase |
| Common Name: | Dental diode laser |
| Classification Name:<br>Classification Code: | Instrument, surgical, powered, laser<br>79-GEX |
| Equivalent Device(s): | DioDent Dental Laser System by HOYA ConBio,<br>Aurora by Premier Laser System,<br>Twilite or Dentek LD-15 Diode Laser System by BioLase<br>Technologies,<br>DioLase ST by American Medical Technology (formerly ADT) |
| Intended Use: | The LVI lase is intended for incision,<br>excision, ablation, vaporization, and/or coagulation of oral soft<br>tissue (including marginal and interdental gingival and epithelial<br>lining of free gingiva). It is also intended for light activation for<br>bleaching materials for teeth whitening, and laser-assisted<br>bleaching/whitening for teeth whitening. |
| Comparison: | The LVI lase, the DioDent Dental Laser<br>System, the Aurora Diode Laser System, the<br>Twilite/Dentek LD-15, the Dental Diode Laser, and the DioLase<br>ST are equivalent in operating parameters, physical characteristics,<br>and intended uses. (NOTE: Of the equivalent devices mentioned<br>here, only the DioDent and the Twilite are cleared for teeth<br>whitening intended uses. The LVI lase is seeking clearance for<br>this in this submission). |
| Nonclinical Performance<br>Data: | None |
| Clinical Performance Data: | None |
| Additional Information: | None |
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Image /page/1/Picture/1 description: The image is a black and white logo for the U.S. Department of Health & Human Services. The logo features a stylized image of an eagle with three lines forming its body and head. The words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" are arranged in a circular pattern around the eagle.
Public Health Service
JUN 1 1 2007
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
HOYA ConBio, Inc. % Liza Burns and Associates Ms. Liza Burns Regulatory Consultant 19722 Westview Drive Twain Harte, California 95383
Re: K041721
Trade/Device Name: LVI lase Dental Diode Laser Regulation Number: 21 CFR 878.4800 Regulation Name: Laser surgical instrument for use in general and plastic surgery and in dermatology Regulatory Class: II Product Code: GEX Dated: June 21, 2004 Received: June 29, 2004
Dear Ms. Burns
This letter corrects our substantially equivalent letter of August 5, 2004.
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 (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to 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 801); good manufacturing practice requirements as set
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Page 2 - Ms. Liza Burns
forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (sections 531-542 of the Act); 21 CFR 1000-1050.
This letter will allow you to continue marketing your device as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Office of Compliance at (240) 276-0115. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (240) 276-3150 or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html
Sincerely yours,
Mark N. Melkers
Mark N. Melkerson Director Division of General, Restorative and Neurological Devices Office of Device Evaluation Center for Devices and Radiological Health
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## 1. Indications for Use Statement
| 510(k) Number: | K041721 |
|--------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Device Name: | LVI lase |
| Indications for Use: | For the incision, excision, ablation, vaporization, and hemostasis of oral soft tissue.<br>Examples:<br>Excisional and incisional biopsies<br>Exposure of unerupted teeth<br>Fibroma removal<br>Frenectomy and frenotomy<br>Gingival troughing for crown impressions<br>Gingivectomy<br>Gingivoplasty<br>Gingival incision and excision<br>Hemostasis<br>Implant recovery<br>Incision and drainage of abscess<br>Leukoplakia<br>Operculectomy<br>Oral papillectomies<br>Pulpotomy<br>Pulpotomy as an adjunct to root canal therapy<br>Reduction of gingival hypertrophy<br>Soft tissue crown lengthening<br>Sulcular debridement (removal of diseased or inflamed soft tissue in the periodontal pocket to improve clinical indices including gingival index, gingival bleeding index, probe depth, attachment loss and tooth mobility)<br>Treatment of aphthous ulcers<br>Vestibuloplasty<br>Biopsy incision and excision<br>Lesion (tumor) removal<br><br>For light activation for bleaching materials for teeth whitening<br>For laser-assisted bleaching/whitening for teeth. |
| (Division Sign-Off)<br>Division of General, Restorative,<br>and Neurological Devices<br>510(k) Number: | K041721 |
Prescription Use _____________________________________________________________________________________________________________________________________________________________ X (21 CFR 801 Subpart D)
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OR
Over-the-Counter Use_ (21 CFR 801 Subpart C)
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Concurrence of CDRH, Office of Device Evaluation (ODE)
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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.