Ambu VivaSight 2 DLT is a sterile, single-use, double-lumen endobronchial tube intended to be used for isolation of the left or right lung of a patient for one lung ventilation. The VivaSight 2 DLT system is intended to be used for verifying tube placement and repositioning. Ambu VivaSight 2 DLT is intended for adult patients.
Device Story
Ambu VivaSight 2 DLT is a sterile, single-use, left-sided double-lumen endobronchial tube with an integrated distal video camera and light source. It includes a stylet for shaping, a flush line for lens cleaning, and tracheal/bronchial cuffs for sealing. The device connects to an Ambu displaying unit via an adapter cable to provide real-time visualization. Used by clinicians in clinical settings (e.g., OR) for intubation, tube placement verification, and repositioning during one-lung ventilation. The system allows for lung isolation and mechanical ventilation of one lung while the other is collapsed. Output is a video feed displayed to the clinician, facilitating accurate tube positioning and reducing the need for external bronchoscopes. Benefits include improved visualization during placement and monitoring of lung isolation.
Clinical Evidence
Bench testing only. No clinical data presented. Testing included ISO 16628 and ISO 5356-1 compliance, product dimensions, kink/flow resistance, cuff leakage, mechanical resistance, shelf life, and sterile packaging integrity. Biocompatibility testing (ISO 10993-5, ISO 10993-10, ISO 18562) and electrical/EMC safety (IEC 60601-1, IEC 60601-2-18, IEC 60601-1-2) confirmed performance equivalent to the predicate.
Technological Characteristics
Sterile, single-use, left-sided double-lumen endobronchial tube (35-41 Fr). Features: integrated CMOS video camera, light source, flush line, tracheal/bronchial cuffs, and stylet. Materials comply with ISO 10993-1 and ISO 18562-1. Connectivity: proprietary adapter cable to Ambu displaying unit. Standards: ISO 16628 (sizing/marking), ISO 5356-1 (connectors), IEC 60601-1/2-18 (electrical safety), IEC 60601-1-2 (EMC).
Indications for Use
Indicated for adult patients with pathological lung conditions or other medical conditions requiring endobronchial intubation, mechanical ventilation, and isolation of one lung from the other, such as for thoracic surgery.
Regulatory Classification
Identification
A tracheal/bronchial differential ventilation tube is a device used to isolate the left or the right lung of a patient for anesthesia or pulmonary function testing.
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May 3, 2021
Ambu A/S % Sanjay Parikh Director, OA/RA Ambu Inc. 6230 Old Dobbin Lane, Suite 250 Columbia, Maryland 21045
Re: K203749
Trade/Device Name: Ambu VivaSight 2 DLT, Ambu VivaSight 2 Adapter Cable Regulation Number: 21 CFR 868.5740 Regulation Name: Tracheal/Bronchial Differential Ventilation Tube Regulatory Class: Class II Product Code: CBI Dated: March 29, 2021 Received: March 30, 2021
Dear Sanjay Parikh:
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/cdrl/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.
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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 of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-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 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 https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-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/medicaldevices/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-device-advice-comprehensive-regulatoryassistance/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.
Todd Courtnev Assistant Director DHT1C: Division of ENT, Sleep Disordered Breathing, Respiratory and Anesthesia Devices OHT1: Office of Ophthalmic, Anesthesia, Respiratory. ENT and Dental Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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## DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration
## Indications for Use
510(k) Number (if known) K203749
Device Name Ambu VivaSight 2 DLT
Indications for Use (Describe)
Intubation with Ambu VivaSight 2 DLT is indicated for pathological lung conditions or other medical conditions that require endobronchial intubation, mechanical ventilation of one lung from the other, e.g. for thoracic surgery.
Type of Use (Select one or both, as applicable) X Prescription Use (Part 21 CFR 801 Subpart D) Over-The-Counter Use (21 CFR 801 Subpart C) CONTINUE ON A SEPARATE PAGE IF NEEDED. This section applies only to requirements of the Paperwork Reduction Act of 1995. *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: Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer
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## 510(k) Summary – Ambu® VivaSight™ 2 DLT
This 510(k) summary has been prepared in accordance with 21 CFR 807.87(h) and the content and format of the 510(k) summary has been prepared in accordance with 21 CFR 807.92.
| Submitter | Ambu A/S<br>Baltorpbakken 13<br>2750 Ballerup<br>Denmark<br>Tel.: +45 7225 2000<br>Fax.: +45 7225 2050 |
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| Contact Person | Name: Karina Matthiesen<br>Job Title: Senior Regulatory Affairs Professional<br>Address: Ambu A/S, Baltorpbakken 13, 2750 Ballerup<br>Email: kama@ambu.com<br>Telephone number: +45 7225 2000<br>Fax number: +45 7225 2050 |
| Date Summary<br>Prepared | March 26, 2021 |
| Device Trade<br>Name | Ambu® VivaSight™ 2 DLT<br>Accessory: Ambu® VivaSight™ 2 Adapter Cable |
| Device Common<br>Name | Double-lumen endobronchial tube |
| Device<br>Classification | Tracheal/bronchial differential ventilation tube<br>Product Code: CBI<br>21 CFR 868.5740<br>Class II |
| Predicate device | Substantial equivalence to the following legally marketed device is<br>claimed: |
| | K181886<br>VivaSight-DL™, ETView Ltd. |
| Device<br>Description | Ambu VivaSight 2 DLT is a sterile, single-use, left-sided, double-lumen<br>endobronchial tube with an embedded video camera and light source at<br>the distal end of the tracheal lumen and integrated video cable with video<br>connector.<br><br>The embedded video camera is used for visualization during the intubation<br>procedure and to verify the tube placement. The picture is shown on an<br>Ambu displaying unit, which Ambu VivaSight 2 DLT is connected to via<br>Ambu VivaSight 2 Adapter Cable. Ambu VivaSight 2 Adapter Cable is a<br>non-sterile, single patient use accessory to Ambu VivaSight 2 DLT. Ambu<br>VivaSight 2 DLT is connected to and powered by an Ambu displaying unit<br>via Ambu VivaSight 2 Adapter Cable; the whole system is referred to as<br>the VivaSight 2 DLT system.<br><br>Ambu VivaSight 2 DLT is indicated for left or right lung isolation and use<br>as a temporary artificial airway in adults requiring mechanical one-lung<br>ventilation and is fitted with a stylet to enable shaping of the tube for<br>navigation during intubation.<br><br>A colorless tracheal cuff provides sealing against tracheal wall and the<br>corresponding pilot balloon indicates state of cuff inflation/deflation.<br>Similarly, a blue bronchial cuff provides sealing against bronchial wall and<br>the corresponding pilot balloon indicates state of cuff inflation/deflation.<br><br>A flush line with flush exits next to the camera lens ensures possibility for<br>cleaning of the camera lens.<br><br>Ambu VivaSight 2 DLT can be connected to ventilation equipment via a Y-<br>connector, which is included with the product. The Y-connector is sterile,<br>single-use. The Y-connector caps enable lung deflation and use of<br>accessories such as bronchoscopes and suction catheters in Ambu<br>VivaSight 2 DLT. Furthermore, valves on the Y-connector enables opening<br>and closing of the ventilation flow to each of the tracheal and bronchial<br>lumens. The Y-connector airway tubes are colour coded to indicate tracheal<br>and bronchial connection.<br>Ambu VivaSight 2 DLT will be available in four sizes: 35 Fr, 37 Fr, 39 Fr,<br>and 41 Fr. |
| Intended Use | Ambu VivaSight 2 DLT is a sterile, single-use, double-lumen endobronchial<br>tube intended to be used for isolation of the left or right lung of a patient<br>for one lung ventilation.<br><br>The VivaSight 2 DLT system is intended to be used for verifying tube<br>placement and repositioning.<br><br>Ambu VivaSight 2 DLT is intended for adult patients. |
| Indications for<br>Use | Intubation with VivaSight 2 DLT is indicated for patients with pathological<br>lung conditions or other medical conditions that require endobronchial<br>intubation, mechanical ventilation and isolation of one lung from the<br>other, e.g. for thoracic surgery. |
| Technological<br>characteristics<br>in comparison to<br>the predicate<br>device | Both Ambu VivaSight 2 DLT and the predicate device, ETView VivaSight-<br>DL, are left-sided double-lumen endobronchial tubes with embedded<br>video camera and light source.<br><br>Both devices share similar technological characteristics such as tube size,<br>effective inside diameters, outside bronchial diameters and tube length. |
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Both devices have flush lines with flush exits in front of the camera lens to enable cleaning of camera lens. Both devices are connected to Ambu displaying units via an adapter cable. The camera sensor resolution for Ambu VivaSight 2 DLT is higher than for ETView VivaSight-DL and the picture format slightly different. Both devices have the same materials or substances in contact with the same human tissues or body fluids, except for small differences in the camera module and video connector. Performance The following data have been submitted in the premarket notification to support safety and effectiveness of the device: Testing - Bench Declaration of conformity to the following applicable recognized consensus standards: . ISO 16628:2008 Tracheobronchial tubes - Sizing and marking . ISO 5356-1:2015 Anesthetic and respiratory equipment - Conical connectors - Part 1: Cones and sockets Result: All tests passed. Performance test reports to document the following properties: Product dimensions, incl. cuff diameters ● . Effective inside diameter . Tube connector dimensions ● Markings and color Kink and flow resistance ● . Cuff leakage and herniation . Cuffed tube collapse . Leakage of lumens . Mechanical resistance of junctions . Duration of use . Adapter cable connection to video connector . Connect and power sequence . Adapter cable connectors pull force . Photobiological safety Result: All tests passed. Performance test reports to document shelf life. Tests were performed on finished, sterilized and aged products: . Performance tests . Sterile packaging integrity Result: All tests passed. Ambu VivaSight 2 DLT is classified as a breathing gas-pathway device and as a surface device having direct contact with mucosal membrane for limited duration in accordance with ISO 18562-1 and ISO 10993-1. Biocompatibility test reports to document compliance with the requirements of these standards: Cvtotoxicity (ISO 10993-5) . Sensitization (ISO 10993-10) . . Intracutaneous reactivity test (ISO 10993-10) Particulate matter emissions (ISO 18562-2) . . Volatile Organic Compound (VOC) emissions (ISO 18562-3) Leachable substances in condensate (ISO 18562-4) . Result: All tests passed.
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Test reports that verify the Electromagnetic Compatibility and Electrical Safety: . Electromagnetic Compatibility in compliance with IEC 60601-1-2
- Electrical Safety in compliance with IEC 60601-1 and IEC 60601-. 2-18
Result: All tests passed.
Conclusion Ambu VivaSight 2 DLT and its accessory, Ambu VivaSight 2 Adapter Cable, have the same intended use, technological characteristics and principles of operation as the predicate device.
> The minor technological differences between Ambu VivaSight 2 DLT and its predicate device raises no new questions regarding safety or effectiveness.
> Performance testing has demonstrated that the device is as safe and effective as the predicate device.
> Thus, Ambu VivaSight 2 DLT is substantially equivalent to its predicate 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.