K181240 · Olympus Medical Systems Corp. · EOB · Oct 4, 2018 · Ear, Nose, Throat
Device Facts
Record ID
K181240
Device Name
Rhino-Laryngo Fiberscope Olympus ENF-GP2
Applicant
Olympus Medical Systems Corp.
Product Code
EOB · Ear, Nose, Throat
Decision Date
Oct 4, 2018
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 874.4760
Device Class
Class 2
Indications for Use
This instrument is intended to be used with an Olympus light source, documentation equipment, display monitor and other ancillary equipment for endoscopic diagnosis. This instrument is indicated for use within the nasal and nasopharyngeal lumen.
Device Story
Flexible fiberscope for visualization of nasal and nasopharyngeal anatomy; used in clinical settings by physicians. Device consists of eyepiece, control section for angulation, connector for light source, and insertion tube. Light from external source travels through fiber bundles to distal end; reflected image captured by objective lens and transmitted via image fiber bundles to eyepiece. Physician manually manipulates angulation lever to guide insertion and observation. Provides direct visualization to assist in diagnostic procedures. Benefits include reduced distal end and insertion tube diameters compared to predicate, facilitating navigation within nasal passages.
Clinical Evidence
No clinical or animal studies were performed. Substantial equivalence is supported by bench testing, including electrical safety, thermal safety, mechanical durability, and optical performance testing, alongside biocompatibility and reprocessing validation.
Technological Characteristics
Flexible fiberscope; optical fiber bundles for illumination and imaging. Distal end diameter 3.1mm; insertion tube 3.5mm. Field of view 85°; depth of field 5-50mm. No instrument channel. Compatible with OER-Pro, STERRAD, and V-PRO reprocessing. Electrical safety per ANSI/AAMI ES 60601-1 and IEC 60601-2-18.
Indications for Use
Indicated for endoscopic diagnosis within the nasal and nasopharyngeal lumen.
Regulatory Classification
Identification
A nasopharyngoscope (flexible or rigid) and accessories is a tubular endoscopic device with any of a group of accessory devices which attach to the nasopharyngoscope and is intended to examine or treat the nasal cavity and nasal pharynx. It is typically used with a fiberoptic light source and carrier to provide illumination. The device is made of materials such as stainless steel and flexible plastic. This generic type of device includes the antroscope, nasopharyngolaryngoscope, nasosinuscope, nasoscope, postrhinoscope, rhinoscope, salpingoscope, flexible foreign body claw, flexible biopsy forceps, rigid biopsy curette, flexible biospy brush, rigid biopsy forceps and flexible biopsy curette, but excludes the fiberoptic light source and carrier.
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October 4, 2018
Olympus Medical Systems Corp. % Sheri L. Musgnung Regulatory Affairs Manager Olympus Corporation of the Americas 3500 Corporate Parkway PO Box 610 Center Valley, PA 18034-0610
Re: K181240
Trade/Device Name: Rhino-Larvngo Fiberscope Olympus ENF-GP2 Regulation Number: 21 CFR 874.4760 Regulation Name: Nasopharyngoscope (Flexible or Rigid) and Accessories Regulatory Class: Class II Product Code: EOB Dated: August 31, 2018 Received: September 4, 2018
Dear Sheri L. Musgnung:
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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. 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.
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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); medical device reporting (reporting of medical devicerelated adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4. Subpart B) for combination products (see
https://www.fda.gov/CombinationProducts/GuidanceRegulatoryInformation/ucm597488.htm); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; 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 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 yours,
# Srinivas Nandkumar -S
for Malvina B. Eydelman, M.D. Director Division of Ophthalmic and Ear, Nose and Throat Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# Indications for Use
510(k) Number (if known) K181240
Device Name RHINO-LARYNGO FIBERSCOPE OLYMPUS ENF-GP2
Indications for Use (Describe)
This instrument is intended to be used with an Olympus light source, documentation equipment, display monitor and other ancillary equipment for endoscopic diagnosis. This instrument is indicated for use within the nasal and nasopharyngeal lumen.
| Type of Use ( <i>Select one or both, as applicable</i> ) | |
|----------------------------------------------------------|--|
|----------------------------------------------------------|--|
X Prescription Use (Part 21 CFR 801 Subpart D)
| Over-The-Counter Use (21 CFR 801 Subpart C)
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# 510(k) SUMMARY RHINO-LARYNGO FIBERSCOPE OLYMPUS ENF-GP2
October 1, 2018
# 1 General Information
| ■ Applicant: | OLYMPUS MEDICAL SYSTEMS CORP.<br>2951 Ishikawa-cho, Hachioji-shi, Tokyo, 192-8507,<br>Japan<br>Establishment Registration No: 8010047 |
|---------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| ■ Official Correspondent: | Sheri L. Musgnung<br>Manager, Regulatory Affairs<br>Olympus Corporation of the Americas<br>3500 Corporate Parkway PO Box 610<br>Center Valley, PA 18034-0610, USA<br>Phone: 484-896-3147<br>FAX: 484-896-7128<br>Email: sheri.musgnung@olympus.com |
| ■ Manufacturer: | Aizu Olympus Co., Ltd.<br>500 Muranishi, Niidera, Monden-Machi,<br>Aizuwakamatsu- Shi, Fukushima, 965-8520, Japan<br>Establishment Registration No.: 9610595 |
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# 2 Device Identification
| ■ Device Trade Name: | RHINO-LARYNGO FIBERSCOPE OLYMPUS ENF-GP2 |
|-------------------------|-------------------------------------------------------|
| ■ Common Name: | RHINO-LARYNGO FIBERSCOPE |
| ■ Regulation Number: | 874.4760 |
| ■ Regulation Name: | Nasopharyngoscope (flexible or rigid) and accessories |
| ■ Regulatory Class: | II |
| ■ Classification Panel: | Ear Nose and Throat |
| ■ Product Code: | EOB |
# 3 Predicate Device Information
| ■ Device Name: | XENF-TP Rhino-Laryngofiberscope, its accessories and<br>ancillary equipment |
|----------------|-----------------------------------------------------------------------------|
| ■ Common Name: | Fiber Scope for Rhino-Laryngo |
| ■ Applicant | OLYMPUS MEDICAL SYSTEMS CORP. |
| ■ 510(k) No. | K013591 |
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# 4 Device Description
This instrument is intended to be used with an Olympus light source, documentation equipment, display monitor and other ancillary equipment for endoscopic diagnosis. This instrument is indicated for use within the nasal and nasopharyngeal lumen.
ENF-GP2 is mainly consisted of four functional parts:
- eyepiece section that observes endoscopic images
- control section that operates endoscope such as controlling angulation to guide insertion and observation
- connector section that links with light source -
- insertion section that goes through and contacts with nasal and nasopharyngeal lumen under light guide.
When observing nasal or nasopharyngeal lumen, the light emitted from light source comes into fiberscope via apparatus on connector section and is eventually transmitted and released from examination light outlet in the distal end to supply light by optical fiber bundles. Subsequently the enlighten image reflexed into objective lens is grasped and sent to evepiece section by image fiber bundles, and observer can observe the image in eyepiece section or alter the imaging position by means of operations on control section, such as manipulation by UP/DOWN angulation control lever to adjust the bending section. Each section works collectively to perform observation within nasal and nasopharyngeal lumen.
# 5 Indications for Use
This instrument is intended to be used with an Olympus light source, documentation equipment, display monitor and other ancillary equipment for endoscopic diagnosis. This instrument is indicated for use within the nasal and nasopharyngeal lumen.
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# 6 Comparison of Technological Characteristics
Compared to the predicate device, the subject device RHINO-LARYNGO FIBERSCOPE OLYMPUS ENF-GP2 has similar technological characteristics except for the following differences:
- Changes on optical system parameters
- Configuration modification and material change of eyepiece section and control section
- Dimension and material change on insertion section
- Removal of instrumental channel structure
- Extension of reprocessing methods
Detailed information is provided in the following table.
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#### OLYMPUS MEDICAL SYSTEMS CORP. 510(k) Premarket Notification RHINO-LARYNGO FIBERSCOPE OLYMPUS ENF-GP2, K181240
| Features | <Subject Device><br>RHINO-LARYNGO FIBERSCOPE<br>OLYMPUS ENF-GP2 | <Predicate Device><br>XENF-TP Rhino-Laryngofiberscope,<br>its accessories and ancillary<br>equipment, K013591 |
|----------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Indications for use | This instrument is intended to be used<br>with an Olympus light source,<br>documentation equipment, display<br>monitor and other ancillary equipment<br>for endoscopic diagnosis. This<br>instrument is indicated for use within<br>the nasal and nasopharyngeal lumen. | This instrument has been designed to<br>be used with an Olympus light source<br>or an Olympus miniature light source,<br>documentation equipment, display<br>monitor. Endotherapy accessories and<br>other ancillary equipment for<br>endoscopic diagnosis and treatment<br>within the nasal and nasopharyngeal<br>lumen. Do not use this instrument for<br>any purpose other than its intended<br>use. |
| Field of view | 85° | 85° |
| Direction of view | 0°(forward viewing) | 0°(forward viewing) |
| Depth of field | 5-50mm | 3-50mm |
| Configuration and<br>material change of<br>eyepiece and control<br>section | Image: RHINO-LARYNGO FIBERSCOPE OLYMPUS ENF-GP2 eyepiece and control section | Image: XENF-TP Rhino-Laryngofiberscope eyepiece and control section |
| Features | <Subject Device><br>RHINO-LARYNGO FIBERSCOPE<br>OLYMPUS ENF-GP2 | <Predicate Device><br>XENF-TP Rhino-Laryngofiberscope,<br>its accessories and ancillary<br>equipment, K013591 |
| Outer diameter of distal end | φ3.1mm | φ4.8mm |
| Outer diameter of insertion tube | φ3.5mm | φ5.0mm |
| Working length of insertion section | 300mm | 365mm |
| Angulation angle | 130° | 130° |
| Channel for therapy accessories | none | Incorporated |
| Construction of objective lens and light guide lens | Image: Diagram of objective lens and light guide lens with labels 1. objective lens and 2. light guide lens | Image: Diagram of light guide lenses, objective lens, and instrument channel with labels 1. light guide lenses, 2. objective lens, and 3. instrument channel |
| Total length | 550mm | 620mm |
| Reprocess with OER-Pro | available | unavailable |
| Sterilization with STERRAD | available | unavailable |
| Sterilization with V-PRO | available | unavailable |
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#### OLYMPUS MEDICAL SYSTEMS CORP. 510(k) Premarket Notification RHINO-LARYNGO FIBERSCOPE OLYMPUS ENF-GP2, K181240
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### 7 Performance data
The following performance data were provided in support of the substantial equivalence determination.
# 1) Reprocessing validation testing
Reprocessing instruction and reprocessing method validation testing for the RHINO-LARYNGO FIBERSCOPE OLYMPUS ENF-GP2 were conducted and documentation was provided as recommended by Guidance for Industry and Food and Drug Administration Staff, "Reprocessing Medical Devices in Health Care Setting: Validation Methods and Labeling".
# 2) Biocompatibility testing
Biocompatibility testing for the RHINO-LARYNGO FIBERSCOPE OLYMPUS ENF-GP2 were conducted in accordance with the FDA's Guidance for Industry and Food and Drug Administration Staff, Use of International Standard ISO 10993-1, "Biological evaluation of medical devices – Part 1: Evaluation and testing within a risk management process".
# 3) Performance testing - Bench
Bench testing for the RHINO-LARYNGO FIBERSCOPE OLYMPUS ENF-GP2 as listed below was conducted. Electrical safety test has been performed to verify the compliance to ANSVAAMI ES 60601-1:2005/(R)2012 and A1:2012. IEC60601-2-18:2009, thermal safety test has been performed to verify the compliance to "PROTECTION AGAINST EXCESSIVE TEMPARATURES AND OTHER SAFETY HAZARDS" of IEC 60601-2-18:2009-08, durability test has been performed to verify the safety and effectiveness considering the supposed usage and operating environment and optical performance test has been performed to verify the safety and effectiveness from optical perspective.
- Electrical Safety followed by ANSI/AAMI ES 60601-1:2005/(R)2012 and A1:2012, IEC60601-2-18:2009
- Thermal safety test
- Mechanical durability test
- Optical performance test
# 4) Performance testing - Animal
No animal study was performed to demonstrate substantial equivalence.
# 5) Performance testing - Clinical
No clinical study was performed to demonstrate substantial equivalence.
### 6) Risk analysis
Risk analysis for the RHINO-LARYNGO FIBERSCOPE OLYMPUS ENF-GP2 was
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conducted in accordance with established in-house acceptance criteria based on ISO 14971:2007 and the human factors validation was conducted in accordance with the FDA Guidance, "Applying Human Factors and Usability Engineering to Medical Devices". The design verification tests and their acceptance criteria were identified and performed as a result of this risk analysis assessment.
# 8 Conclusion
When compared to the predicate device, the RHINO-LARYNGO FIBERSCOPE OLYMPUS ENF-GP2 does not cause any significant changes in intended use and technical characteristics that could affect the safety or effectiveness of the device.
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.