The BAROnova Access Sheath Kit is used in conjunction with an endoscope for procedures requiring multiple insertions of the endoscope into the upper gastrointestinal tract, with or without instruments through the instrument chamel of the endoscope. The BAROnova Access Sheath Kit is used in conjunction with the TransPyloric Shuttle Delivery Device to facilitate insertion and positioning of the device during TPS delivery and deployment. The Access Sheath Kit is NOT indicated for foreign body removal or instrument use alongside the endoscope.
Device Story
The BAROnova Access Sheath Kit is a convenience kit comprising an access sheath with obturator, an endoscope seal cap, and an insufflation syringe. The sheath features thin-walled tubing, a handle, and a distal cuff/balloon with an atraumatic tip. It is used by clinicians during upper GI endoscopic procedures to facilitate multiple endoscope insertions and to assist in the delivery and positioning of the TransPyloric Shuttle Delivery Device. The syringe is used to inflate and deflate the sheath's balloon. The device protects the GI tract during repeated instrument passage and simplifies the delivery process for the TransPyloric Shuttle. It is intended for use in a clinical setting by trained medical professionals.
Clinical Evidence
No clinical data. Performance was established through non-clinical bench testing, including dimensional, mechanical, balloon integrity, shaft wall integrity, seal cap functionality, simulated use, animal testing, and biocompatibility studies.
Technological Characteristics
Kit includes an access sheath (tubing, handle, distal cuff/balloon), obturator, endoscope seal cap, and 10cc insufflation syringe. Materials and design are identical to predicate devices. Non-sterile components. Mechanical operation via manual inflation/deflation of the balloon.
Indications for Use
Indicated for patients undergoing upper gastrointestinal procedures requiring multiple endoscope insertions. Not indicated for foreign body removal or instrument use alongside the endoscope.
Regulatory Classification
Identification
An anchored esophageal sheath is a device used to provide an endoluminal pathway to facilitate insertion of an endoscope or other compatible device into the upper gastrointestinal tract. A distal anchor assists in keeping the sheath in place to facilitate positioning of the endoscope or other compatible device.
Special Controls
*Classification.* Class II (special controls). The special controls for this device are:(1) The patient-contacting components of the device must be demonstrated to be biocompatible.
(2) Non-clinical performance testing must demonstrate that the device performs as intended under anticipated conditions of use. The following performance characteristics must be demonstrated:
(i) Testing must verify all dimensions;
(ii) Testing must demonstrate that insertion and removal of any device from the anchored esophageal sheath does not damage the shaft wall or exert force that would cause tissue injury;
(iii) Testing must demonstrate that the anchoring component can be reliably actuated;
(iv) Testing must demonstrate compatibility with any other device that the anchored esophageal sheath is intended to be used with; and
(v) Testing must demonstrate device integrity and functionality in simulated gastric conditions under clinically anticipated forces.
(3) Simulated use testing using an anatomically accurate gastrointestinal model must demonstrate that:
(i) The device can be inserted and removed safely;
(ii) The device remains anchored in place;
(iii) The device can be safely withdrawn after releasing the anchor; and
(iv) The device location and anchoring status can be observed by the intended user.
(4) Performance data must demonstrate continued device functionality over the identified shelf life.
(5) Labeling must include:
(i) Information as to whether the device can be used for foreign body removal or with instruments alongside the endoscope;
(ii) Steps needed to prevent injury to the esophagus or gastroesophageal junction (GEJ) during placement, anchoring, and use of the device;
(iii) Any visualization steps required to confirm the device's placement prior to and after actuating the anchoring component at the GEJ;
(iv) A precaution to avoid excessive force during insertion;
(v) Identification of any endoscopes or other devices that have been validated for use with the anchored esophageal sheath; and
(vi) An expiration date or shelf life.
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July 23, 2019
BAROnova, Inc. Lian Cunningham Senior Vice President, Clinical Affairs 1551 Industrial Road San Carlos, CA 94070
Re: K191078 Trade/Device Name: BAROnova Access Sheath Kit Regulation Number: 21 CFR 21 CFR 876.1510 Regulation Name: Anchored Esophageal Sheath Regulatory Class: Class II Product Code: QGG, FED, OCX, FMF Dated: April 22, 2019 Received: April 23, 2019
Dear Lian Cunningham:
This letter corrects our substantially equivalent letter of July 22, 2019.
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. However, you are responsible to determine that the medical devices you use as components in the kit have either been determined as substantially equivalent under the premarket notification process (Section 510(k) of the act), or were legally on the market prior to May 28, 1976, the enactment date of the Medical Device Amendments. Please note: If you purchase your device components in bulk (i.e., unfinished) and further process (e.g., sterilize) you must submit a new 510(k) before including these components in your kit/tray. 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
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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 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,
# for
Martha W. Betz, Ph.D. Acting Assistant Division Director DHT3A: Division of Renal, Gastrointestinal. Obesity and Transplant Devices OHT3: Office of Gastrorenal, ObGyn, General Hospital and Urology Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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# Indications for Use
510(k) Number (if known) K191078
Device Name BAROnova Access Sheath Kit
Indications for Use (Describe)
The BAROnova Access Sheath Kit is used in conjunction with an endoscope for procedures requiring multiple insertions of the endoscope into the upper gastrointestinal tract, with or without instruments through the instrument chamel of the endoscope.
The BAROnova Access Sheath Kit is used in conjunction with the TransPyloric Shuttle Delivery Device to facilitate insertion and positioning of the device during TPS delivery and deployment.
The Access Sheath Kit is NOT indicated for foreign body removal or instrument use alongside the endoscope.
| Type of Use (Select one or both, as applicable) | |
|------------------------------------------------------------------------------------------------|---------------------------------------------|
| <span style="text-decoration: overline;">X</span> Prescription Use (Part 21 CFR 801 Subpart D) | Over-The-Counter Use (21 CFR 801 Subpart C) |
---
| | Over-The-Counter Use (21 CFR 801 Subpart C)
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### SECTION 5.1: 510(k) SUMMARY STATEMENT
This 510(k) summary is being submitted in accordance with the requirements of the Safe Medical Devices Act of 1990, 21 CFR 807.92.
### 1. General Information
Date of Submission: April 22, 2019
| Submitted By: | BAROnova, Inc.<br>1551 Industrial Road<br>San Carlos, CA 94070 |
|-----------------|----------------------------------------------------------------|
| Contact Person: | Lian Cunningham, MD, PhD |
| Contact Person: | Lian Cunningham, MD, PhD |
|-----------------|--------------------------------------------|
| | Senior VP, Regulatory and Clinical Affairs |
| | Phone 650-638-9796 ext. 22 |
| | Fax: 650-638-9094 |
| | lcunningham@baronova.com |
#### 2. Device Information:
| Common/Usual Name: | Anchored Esophageal Sheath |
|-------------------------|----------------------------|
| Trade Name: | BAROnova Access Sheath Kit |
| Regulation Number | 876.1510 |
| Regulation Description: | Anchored Esophageal Sheath |
| Product Code: | QGG, FED, OCX, FMF |
| Device Panel: | Gastroenterology/Urology |
| Device Classification: | Class II |
#### 3. Legally Marketed Predicate Device for Claimed Equivalence:
| Primary Predicate: | |
|--------------------|------------------------|
| Name: | BAROnova Access Sheath |
| Accessory | |
| Classification #: | Q181451 |
Secondary Predicates: Name: Seal Cap 510(k) #: K172575
Hypodermic Syringe Name: K980987 510(k) #:
#### 4. Device Description
The BAROnova Access Sheath Kit includes the following products:
- BAROnova Access Sheath (with obturator) ●
- . Endoscope (Seal) Cap
- . Insufflation Syringe
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The BAROnova Access Sheath consists of a clean, non-sterile mated Obturator/Access Sheath Assembly. The Access Sheath is composed of thinwalled tubing, a handle and a distal cuff and balloon with an atraumatic tip. The Obturator is made of flexible tubing with an atraumatic tip. The Seal Cap consists of a non-sterile, plastic cap for use with standard endoscopes. A 10cc syringe is also provided with the Access Sheath Kit to enable balloon inflation and deflation.
#### 5. Indications for Use Statement
The BAROnova Access Sheath Kit is used in conjunction with an endoscope for procedures requiring multiple insertions of the endoscope into the upper gastrointestinal tract, with or without instruments through the instrument channel of the endoscope.
The BAROnova Access Sheath Kit is used in conjunction with the TransPyloric Shuttle Delivery Device to facilitate insertion and positioning of the device during TPS delivery and deployment.
The Access Sheath Kit is NOT indicated for foreign body removal or instrument use alongside the endoscope.
#### 6. Substantial Equivalence Comparison
Indications for Use:
The BAROnova Access Sheath Kit has the same indication for use as the predicate BAROnova Access Sheath, thus substantial equivalence is met. No changes have been made to the indication for use for the Endoscope (Seal) Cap and Syringe included within the Access Sheath Kit for convenience. Technological Characteristics:
No changes from the predicate devices have been made to the design, materials, or construction of the BAROnova Access Sheath, Endoscope (Seal) Cap and Syringe included with the BAROnova Access Sheath Kit. The Access Sheath, Endoscope (Seal) Cap and Syringe are packaged together as a convenience kit.
# 7. Summary of Performance Data (Non-clinical testing)
Non-clinical testing of the subject devices for structural and functional use has been performed, including dimensional, mechanical, balloon integrity, shaft wall integrity, seal cap functionality, simulated use, animal and biocompatibility. The subject devices were found to meet all requirements.
The results of the testing performed demonstrate that the BAROnova Access Sheath Kit is safe and effective when used in accordance with its intended use and labeling.
#### 8. Conclusion
Substantial equivalence of the BAROnova Access Sheath Kit is supported by a comparison of the intended use, indications for use, design and materials with the predicate devices as well as acceptable results from verification and validation tests.
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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.
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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
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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.