The Flexible Bronchoscopes have been designed to be used with the video processor, endotherapy accessories and other ancillary equipment for endoscopy within the airways and tracheobronchial tree. The Flexible Bronchoscope is for use in a hospital environment. The Flexible Bronchoscope is a single-use device designed for use in adults.
Device Story
Single-use flexible bronchoscope for airway/tracheobronchial tree visualization. Device comprises handle, insertion section, and connector. Handle features deflection lever, suction/image capture buttons, and LED light source. Light transmitted via optical fibers to distal tip; CMOS sensor at distal tip captures images. Device connects to external video processor (K243497) for signal processing and display on monitor. Used by clinicians in hospital settings to facilitate diagnostic or therapeutic bronchoscopy. Provides real-time visualization to assist clinical decision-making during airway procedures.
Clinical Evidence
No clinical data. Substantial equivalence supported by bench testing, including electrical safety (ANSI AAMI ES60601-1, IEC 60601-2-18), EMC (IEC 60601-1-2), photobiological safety (IEC 62471), mechanical performance (leakage, bending, tensile strength), optical performance (ISO 8600), biocompatibility (ISO 10993-1), and sterilization validation (ISO 11135).
Technological Characteristics
Single-use flexible bronchoscope. CMOS image sensor; LED illumination source in handle with optical fiber transmission. Deflection-controlled distal tip. Sterilized via Ethylene Oxide. Complies with ISO 8600 (optical), ISO 10993 (biocompatibility), ISO 11135 (sterilization), and ISO 11607 (packaging). ASTM F1980-21 used for shelf-life/accelerated aging.
Indications for Use
Indicated for use in adults for endoscopy within the airways and tracheobronchial tree in a hospital environment.
Regulatory Classification
Identification
A bronchoscope (flexible or rigid) and accessories is a tubular endoscopic device with any of a group of accessory devices which attach to the bronchoscope and is intended to examine or treat the larynx and tracheobronchial tree. It is typically used with a fiberoptic light source and carrier to provide illumination. The device is made of materials such as stainless steel or flexible plastic. This generic type of device includes the rigid ventilating bronchoscope, rigid nonventilating bronchoscope, nonrigid bronchoscope, laryngeal-bronchial telescope, flexible foreign body claw, bronchoscope tubing, flexible biopsy forceps, rigid biopsy curette, flexible biopsy brush, rigid biopsy forceps, flexible biopsy curette, and rigid bronchoscope aspirating tube, but excludes the fiberoptic light source and carrier.
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FDA U.S. FOOD & DRUG ADMINISTRATION
August 27, 2025
Shanghai AnQing Medical Instrument Co., Ltd.
Shuwen Fan
RA Manager
3 & 4 Floor, No.2 Building, 366 Huiqing Rd
East Zhangjiang High-Tech Park
Shanghai, 201201
China
Re: K251752
Trade/Device Name: Flexible Bronchoscope (BS27U-12EU, BS27U-12US, BS38U-20EU, BS38U-20US)
Regulation Number: 21 CFR 874.4680
Regulation Name: Bronchoscope (flexible or rigid) and accessories
Regulatory Class: Class II
Product Code: EOQ
Dated: June 9, 2025
Received: June 9, 2025
Dear Shuwen Fan:
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 (the 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 available 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.
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.
U.S. Food & Drug Administration
10903 New Hampshire Avenue
Silver Spring, MD 20993
www.fda.gov
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K251752 - Shuwen Fan
Page 2
Additional information about changes that may require a new premarket notification are provided in the FDA guidance documents entitled "Deciding When to Submit a 510(k) for a Change to an Existing Device" (https://www.fda.gov/media/99812/download) and "Deciding When to Submit a 510(k) for a Software Change to an Existing Device" (https://www.fda.gov/media/99785/download).
Your device is also subject to, among other requirements, the Quality System (QS) regulation (21 CFR Part 820), which includes, but is not limited to, 21 CFR 820.30, Design controls; 21 CFR 820.90, Nonconforming product; and 21 CFR 820.100, Corrective and preventive action. Please note that regardless of whether a change requires premarket review, the QS regulation requires device manufacturers to review and approve changes to device design and production (21 CFR 820.30 and 21 CFR 820.70) and document changes and approvals in the device master record (21 CFR 820.181).
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 Part 803) for devices or postmarketing safety reporting (21 CFR Part 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reporting-combination-products); 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 Part 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR Parts 1000-1050.
All medical devices, including Class I and unclassified devices and combination product device constituent parts are required to be in compliance with the final Unique Device Identification System rule ("UDI Rule"). The UDI Rule requires, among other things, that a device bear a unique device identifier (UDI) on its label and package (21 CFR 801.20(a)) unless an exception or alternative applies (21 CFR 801.20(b)) and that the dates on the device label be formatted in accordance with 21 CFR 801.18. The UDI Rule (21 CFR 830.300(a) and 830.320(b)) also requires that certain information be submitted to the Global Unique Device Identification Database (GUDID) (21 CFR Part 830 Subpart E). For additional information on these requirements, please see the UDI System webpage at https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-assistance/unique-device-identification-system-udi-system.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-devices/medical-device-safety/medical-device-reporting-mdr-how-report-medical-device-problems.
For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). 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 (https://www.fda.gov/medical-devices/device-advice-comprehensive-regulatory-
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K251752 - Shuwen Fan
Page 3
assistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
Joyce C. Lin -S
for Shu-Chen Peng, Ph.D.
Assistant Director
DHT1B: Division of Dental and ENT Devices
OHT1: Office of Ophthalmic, Anesthesia, Respiratory, ENT, and Dental Devices
Office of Product Evaluation and Quality
Center for Devices and Radiological Health
Enclosure
{3}
DEPARTMENT OF HEALTH AND HUMAN SERVICES
Food and Drug Administration
Indications for Use
Form Approved: OMB No. 0910-0120
Expiration Date: 07/31/2026
See PRA Statement below.
Submission Number (if known)
K251752
Device Name
Flexible Bronchoscope (BS27U-12EU, BS27U-12US, BS38U-20EU, BS38U-20US)
Indications for Use (Describe)
The Flexible Bronchoscopes have been designed to be used with the video processor, endotherapy accessories and other ancillary equipment for endoscopy within the airways and tracheobronchial tree.
The Flexible Bronchoscope is for use in a hospital environment. The Flexible Bronchoscope is a single-use device designed for use in adults.
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)
**CONTINUE ON A SEPARATE PAGE IF NEEDED.**
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**DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW.**
The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:
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{4}
| 510(k) #: | 510(k) Summary | Prepared on: 2025-08-19 |
| --- | --- | --- |
| Contact Details | | 21 CFR 807.92(a)(1) |
| Applicant Name | Shanghai AnQing Medical Instrument Co., Ltd. | |
| Applicant Address | 3 & 4 Floor, No.2 Building, 366 Huiqing Rd, East Zhangjiang High-Tech Park Shanghai 201201 China | |
| Applicant Contact Telephone | +86-21-61117375 | |
| Applicant Contact | Ms. Shuwen Fan | |
| Applicant Contact Email | ra_dept@anqing-sh.com | |
| Device Name | | 21 CFR 807.92(a)(2) |
| Device Trade Name | Flexible Bronchoscope (BS27U-12EU, BS27U-12US, BS38U-20EU, BS38U-20US) | |
| Common Name | Bronchoscope (flexible or rigid) and accessories | |
| Classification Name | Bronchoscope (Flexible Or Rigid) | |
| Regulation Number | 874.4680 | |
| Product Code(s) | EOQ | |
| Legally Marketed Predicate Devices | | 21 CFR 807.92(a)(3) |
| Predicate # | Predicate Trade Name (Primary Predicate is listed first) | Product Code |
| K243497 | Flexible Bronchoscope | EOQ |
| | | |
| | | |
| Device Description Summary | | 21 CFR 807.92(a)(4) |
| The Flexible Bronchoscope (Model: BS27U-12EU, BS27U-12US, BS38U-20EU, BS38U-20US) is intended to be used with the Portable Video Processor (cleared via K243497). The Flexible Bronchoscope is inserted through the airways and tracheobronchial tree during bronchoscopy, and when used with the compatible video processor and monitor, the endoscope system can be operated as intended and indicated. The Flexible Bronchoscope is a single-use endoscope, which consists of a Handle, an Insertion Section, and an Endoscope Connector. The handle includes a deflection lever, a lever lock, a push button for picture taking/video recording, a push button for suction, a connector for suction tubing, a Luer port for insertion of accessory devices and irrigation to the working channel and a LED for illumination. The insertion section contains one working channel, wiring to transmit the image signals to the video processor, and two optical fibers to transmit illumination from the handle to the distal tip. The distal bending section of the insertion section is controlled by the user via the deflection lever on the handle. The distal end of the insertion section contains a CMOS sensor for capturing image and transmitting it to the video processor, optical fibers for transmitting illumination from the LED inside the handle, and the distal opening of the working channel. The Endoscope Connector connects the endoscope handle to the video processor, which provides power and processes video signals from the endoscope. Same as the predicate, the subject device is also provided in 2 deflection versions (US/EU deflection). | | |
| Mechanism of action: The light emitted from the distal tip of the Flexible Bronchoscope is irradiated into the body cavity, and the light reflected from the | | |
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cavity enters the optical system and is captured by the CMOS image sensor. The CMOS acquisition image is controlled by the CMOS drive circuit, and the RGB video signal is output to the video processor. The video processor receives video signals from the endoscope, processes the video signals, and outputs the processed video signal to the build in monitor or attached monitor. The video processor also controls the brightness of the LED on the endoscope.
Flexible Bronchoscope has the following physical and performance characteristics:
- Maneuverable tip controlled by the user
- Flexible insertion cord
- Camera at the distal tip
- LED in the handle and transmitted to the distal tip by optical fibers
- Sterilized by Ethylene Oxide
- For single use
## Intended Use/Indications for Use
21 CFR 807.92(a)(5)
The Flexible Bronchoscopes have been designed to be used with the video processor, endotherapy accessories and other ancillary equipment for endoscopy within the airways and tracheobronchial tree.
The Flexible Bronchoscope is for use in a hospital environment. The Flexible Bronchoscope is a single-use device designed for use in adults.
## Indications for Use Comparison
21 CFR 807.92(a)(5)
The indication for use of the subject device and the predicate device(s) are the same.
## Technological Comparison
21 CFR 807.92(a)(6)
1. The subject and predicate devices have the same fundamental technology, deflection, field of view, direction of view, type of imager, number of uses and sterilization method.
The subject device differs from the predicate in distal end outer diameter and patient-contacting materials. These differences do not raise different questions of safety and effectiveness as compared to the predicate, and can be evaluated through performance testing.
2. Both the subject device and predicate device provides LED illumination to the procedural site, which in the case of the predicate device is provided by the LEDs in the distal tip, whereas in the case of the subject device, the illumination is generated by the LED inside of the handle and transmitted to the distal tip via optical fibers. Optical performance testing was conducted to evaluate any impact from this design difference, and the results demonstrated that subject device is as safe and effective as the predicate.
## Non-Clinical and/or Clinical Tests Summary & Conclusions
21 CFR 807.92(b)
1. Electrical Safety and Electromagnetic Compatibility Summary
The electrical safety and EMC data included in the submission is in compliance with the following FDA recognized standards:
- ANSI AAMI ES60601-1:2005/(R)2012 & A1:2012, C1:2009/(R)2012 & A2:2010/(R)2012 (Cons. Text) [Incl. AMD2:2021]
- ANSI AAMI IEC 60601-1-2:2014 [Including AMD 1:2021]
- IEC 60601-2-18 Edition 3.0 2009-08
- IEC/TS 60601-4-2 Edition 1.0 2024-03
2. Photobiological safety
The proposed device was tested according to the following FDA recognized standards:
- IEC 62471:2006 Medical electrical equipment, Photobiological safety of lamps and lamp systems
3. Mechanical and Optical Performance
The proposed device was designed to comply with applicable parts of ISO 8600. Optical measurements were performed according to applicable part of ISO 8600 standard.
Mechanical characteristics were tested and include leakage tightness, bending, deflection endurance, and tensile strength testing. In addition, based on the similarities in pixel specification of the subject device and reference device(K173727), comparative testing related to image quality parameters including direction of view, field of view, MTF/DOF, color performance, SNR/Dynamic Range, Distortion, and Image intensity uniformity was performed to support substantial equivalence. In addition, Flexible Ureterorenoscope cleared via K243857 is used as a reference device for the optical performance testing due to its identical optical design, elements in the illumination and image acquisition paths, and image sensor components.
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4. The biocompatibility evaluation for the patient contacting components of the proposed device was performed according to ISO 10993-1 and FDA Guidance. The following tests were conducted: Cytotoxicity, Sensitization, Irritation, Material-mediated pyrogenicity, Acute systemic toxicity.
5. Sterilization and shelf life testing
The sterilization method has been validated to ISO 11135:2014, which has thereby determined the routine control and monitoring parameters.
EO/ECH residual test was performed according to ISO 10993-7:2008.
The shelf life of the proposed device is determined based on stability study which includes aging test according to ASTM F1980-21, Standard Guide for Accelerated Aging of Sterile Barrier.
6. Package Validation
Package validation was conducted according to ISO 11607-1:2019 and ISO 11607-2:2019, and ASTM F88/F88M-21, ASTM F1929-15. Transport and shipping testing as per ASTM D4169-22.
Clinical Tests Not Applicable.
The conclusions drawn from the nonclinical tests demonstrate that the subject device, the Flexible Bronchoscope is as safe, as effective, and performs as well as the legally marketed device identified above.
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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.