Advanix™ Double Pigtail Biliary Stent is intended for delivery of the stent to the biliary tract for drainage of the bile ducts, for splinting of a bile duct during healing, or for providing bile duct patency in a stricture or past a stone.
Device Story
Advanix™ Double Pigtail Biliary Stent is a plastic biliary stent designed for drainage, splinting, or maintaining patency of bile ducts. Device features proximal and distal pigtails, lateral drainage holes, and a tapered tip. Available in 7Fr and 10Fr diameters with lengths ranging from 3cm to 15cm. Constructed from Styrene Butadiene Styrene. Used by physicians in clinical settings to facilitate biliary drainage through the lumen. Stent is placed using standard biliary catheterization techniques. Benefits include improved bile flow and ductal support in patients with strictures or stones.
Clinical Evidence
No clinical data. Evidence consists of bench testing including biocompatibility (cytotoxicity, sensitization, reactivity, systemic toxicity, genotoxicity, implantation) and mechanical performance testing (drainage lumen ID, stent length, OD, shape, deployment force, trackability, and compatibility). All tests met specifications.
Technological Characteristics
Styrene Butadiene Styrene plastic biliary stent. Features proximal/distal pigtails, lateral drainage holes, tapered tip. Diameters: 7Fr, 10Fr. Lengths: 3cm-15cm. Biocompatibility per EN ISO 10993-1:2009. Non-electronic, mechanical device.
Indications for Use
Indicated for patients requiring biliary tract drainage, bile duct splinting during healing, or maintenance of bile duct patency in the presence of strictures or stones.
Regulatory Classification
Identification
A biliary catheter and accessories is a tubular flexible device used for temporary or prolonged drainage of the biliary tract, for splinting of the bile duct during healing, or for preventing stricture of the bile duct. This generic type of device may include a bile collecting bag that is attached to the biliary catheter by a connector and fastened to the patient with a strap.
Special Controls
*Classification.* Class II (special controls). The device, when it is a bile collecting bag or a surgical biliary catheter that does not include a balloon component, is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 876.9.
Predicate Devices
Microvasive® Biliary Stent and Delivery System (K965147)
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K101786
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SECTION 5 JUL 2 8 2010 510(k) SUMMARY
### 510(k) SUMMARY
### 1. Submitter:
Boston Scientific Corporation 100 Boston Scientific Way Marlborough, MA 01752 Telephone: 508-683-4347 Fax: 508-683-5939 ·
Contact: Elena Nieves Senior Regulatory Affairs Specialist Date Prepared: June 22, 2010
## 2. Proposed Device:
Trade Name: Advanix™ Double Pigtail Biliary Stent Classification Name: Biliary Catheters and Accessories Regulation Number: 876.5010 Product Code: FGE Classification: Class II
## 3. Predicate Device(s):
Trade Name: Microvasive® Biliary Stent and Delivery System Manufacturer and Clearance Number: Boston Scientific Corporation, K965147 Classification Name: Biliary Catheters and Accessories Regulation Number: 876.5010 Product Code: FGE Classification: Class II
Trade Name: Microvasive® Drainage Stent Manufacturer and Clearance Number: Boston Scientific Corporation, K834468 Classification Name: Biliary Catheters and Accessories Regulation Number: 876.5010 Product Code: FGE Classification: Class II
## 4. Proposed Device Description:
The proposed Advanix™ Double Pigtail Biliary Stent consists of a biliary plastic stent. The Advanix double pigtail stent will be sold in a single stent configuration. The double pigtail stent has proximal and distal pigtails, lateral drainage holes in the pigtails, and a tapered tip.
The Advanix Double Pigtail Stent will be offered in 7Fr and 10Fr. diameters. The stent lengths for each diameter vary from 3cm-15cm stent lengths. The Advanix Double Pigtail Stent is constructed of a Styrene Butadiene Styrene material.
> Special 510(k) Premarket Notification, Advanix™ Double Pigtail Biliary Stent Proprietary and Confidential Information of Boston Scientific Corporation
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## 5. Intended Use:
Advanix™ Double Pigtail Biliary Stent is intended for drainage of the bile ducts, for splinting of a bile duct during healing, or for providing bile duct patency in a stricture or past a stone.
## 6. Technological Characteristics:
The proposed Advanix™ Double Pigtail Biliary Stent has the same technological characteristics as the predicate Microvasive® Drainage Stent (K834468) and Microvasive® Biliary Stent and Delivery System (K965147).
The proposed device has the same intended use as the predicate Microvasive Biliary Stent and is placed using the same methodology as both of the predicate devices. Both the proposed and predicate devices function in the same manner allowing for biliary drainage through the lumen.
The pigtail shape and material for the Advanix Double Pigtail Biliary Stent are the same as the predicate Microvasive Drainage Stent.
#### 7. Performance Data:
In-vitro testing has been performed and all components, subassemblies, and/or full devices met the required specifications for the completed tests.
The proposed Advanix™ Double Pigtail Biliary Stent was evaluated in accordance with EN ISO 10993-1:2009. The following tests were performed on the stent: Cytotoxicity, Sensitization, Intracutaneous Reactivity, Systemic Toxicity -Acute Systemic Toxicity, Subacute Toxicity -Intravenous and Intraperitoneal, Genotoxicity - Ames Assay and Mouse Lymphoma, Implantation, and USP Physicochemical.
The following tests were conducted on the Advanix™ Double Pigtail Biliary Stent: Drainage Lumen ID, Stent Length, Stent OD, Stent Shape, Deployment Force, Trackability Force, Duodenoscope Compatibility, and Barb Flap Cover Compatibility.
#### 8. Conclusion:
All biocompatibility tests conducted on the Advanix™ Double Pigtail Biliary Stent passed. Therefore, the Advanix Double Pigtail Billiary Stent is considered biocompatible for its intended use.
All device bench test results were acceptable. The data demonstrate that the Advanix Double Pigtail Biliary Stent sufficiently meets the design specifications and is suitable for the intended use.
Boston Scientific Corporation has demonstrated that the proposed Advanix™ Double Pigtail Biliary Stent is substantially equivalent to Boston Scientific Corporation's currently marketed Microvasive® Drainage Stent (K834468) and Microvasive® Biliary Stent and Delivery System (K965147).
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Image /page/2/Picture/0 description: The image shows a circular seal with the words "DEPARTMENT OF HEALTH & HUMAN SERVICES" written around the edge. In the center of the seal is a stylized eagle with its wings spread. The image is black and white and appears to be a scan or photocopy of an official document.
Food and Drug Administration 10903 New Hampshire Avenue Document Mail Center - WO66-G609 Silver Spring, MD 20993-0002
Ms. Elena Nieves Sr. Regulatory Affairs Specialist Boston Scientific Corporation 100 Boston Scientific Way MARLBOROUGH MA 01752
JUL 2 3 2010
Re: K101786
Trade/Device Name: Advanix™ Double Pigtail Biliary Regulation Number: 21 CFR§ 876.5010 Regulation Name: Biliary catheter and accessories Regulatory Class: II Product Code: FGE Dated: June 22, 2010 Received: June 25, 2010
Dear Ms. Nieves:
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. 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.
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
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Page 2 -
adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the au vithe events (QS) regulation (21 CFR Part 820); and if applicable, the electronic product quality bybents (Sections (Sections 531-542 of the Act); 21 CFR 1000-1050.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please 11 you ucsire specific advise 101 your 2017 your 2017 inces/CDRH/CDRHOffices/ucm115809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. Also, please the Center for Devices and Radionageen nearth of (21CF) Party of the Party of Carly of Car note the regulation online of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely yours,
Janine M. Morris
Acting Director, Division of Reproductive, Abdominal, and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# - 510(k) Number (if known):
K101786
Advanix™ Double Pigtail Biliary
Device Name:
Indications for Use:
Advanix™ Double Pigtail Biliary Stent is intended for delivery of the stent to the biliary tract for drainage of the
bile ducts, for splinting of a bile duct during healing, or for providing bile duct patency in a stricture or past a stone.
Prescription Use X (Part 21 CFR 801 Subpart D)
AND/OR
Over-The-Counter Use (21 CFR 807 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
(Division Sign-Off)
Division of Reproductive, Abdominal,
and Radiological Devices
510(k) Number. K101786
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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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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.