The Dr. Amplatz Micro Plug is indicated for arterial embolization in the peripheral vasculature.
Device Story
Dr. Amplatz Micro Plug is a self-expanding braided Nitinol vascular occlusion implant; used for arterial embolization in peripheral vasculature. Device consists of a plug with radiopaque marker bands and screw attachment for delivery wire; supplied with a hydrophilic-coated delivery catheter, loader, torque device, and Tuohy Borst valve. Operated by physicians trained in vascular embolization under fluoroscopic guidance. Device is delivered via catheter to the target vessel; once deployed, it promotes embolization. Output is the physical occlusion of the vessel. Benefits include minimally invasive treatment of peripheral vascular conditions. Device is single-use and sterile.
Clinical Evidence
No clinical data. Substantial equivalence supported by bench testing and a chronic GLP animal study. Bench testing included simulated use (flushing, deployment, recapture), mechanical testing (tensile strength, radial force, torque, kink, burst, fatigue, leak), MRI compatibility, corrosion, nickel leaching, packaging, sterilization, and comprehensive biocompatibility (cytotoxicity, sensitization, irritation, systemic toxicity, implantation, hemocompatibility, complement activation, pyrogenicity).
Technological Characteristics
Self-expanding braided Nitinol vascular occlusion implant. Materials: Nitinol, Platinum-iridium, Stainless Steel, Nylon, LDPE, PTFE, Pebax, Grilamed. Features radiopaque marker bands. Dimensions: 3-6 mm diameters. Delivery system includes 125 cm hydrophilic-coated catheter. Sterilization: Ethylene Oxide (SAL 10^-6). Single-use. Mechanical sensing/actuation via self-expansion upon deployment.
Indications for Use
Indicated for arterial embolization in the peripheral vasculature for patients requiring vascular occlusion.
Regulatory Classification
Identification
A vascular embolization device is an intravascular implant intended to control hemorrhaging due to aneurysms, certain types of tumors (e.g., nephroma, hepatoma, uterine fibroids), and arteriovenous malformations. This does not include cyanoacrylates and other embolic agents, which act by polymerization or precipitation. Embolization devices used in neurovascular applications are also not included in this classification, see § 882.5950 of this chapter.
Special Controls
*Classification.* Class II (special controls.) The special control for this device is the FDA guidance document entitled “Class II Special Controls Guidance Document: Vascular and Neurovascular Embolization Devices.” For availability of this guidance document, see § 870.1(e).
{0}------------------------------------------------
Image /page/0/Picture/0 description: The image shows the logo of the U.S. Food and Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is the FDA logo, which is a blue square with the letters "FDA" in white. To the right of the blue square is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue.
April 17, 2019
KA Medical, LLC % John Oslund Vice President and General Manager 2890 Centre Pointe Drive Roseville, Minnesota 55113
Re: K182944
Trade/Device Name: Dr. Amplatz Micro Plug Regulation Number: 21 CFR 870.3300 Regulation Name: Vascular Embolization Device Regulatory Class: Class II Product Code: KRD Dated: March 15, 2019 Received: March 20, 2019
Dear Mr. Oslund:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
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 adverse events) (21 CFR 803) for
{1}------------------------------------------------
devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/CombinationProducts/GuidanceRegulatoryInformation/ucm597488.html; good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm.
For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/) and CDRH Learn (http://www.fda.gov/Training/CDRHLearn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (http://www.fda.gov/DICE) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
For
Bram D. Zuckerman, M.D. Director Division of Cardiovascular Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{2}------------------------------------------------
## Please wait...
If this message is not eventually replaced by the proper contents of the document, your PDF viewer may not be able to display this type of document.
You can upgrade to the latest version of Adobe Reader for Windows®, Mac, or Linux® by visiting http://www.adobe.com/go/reader_download.
For more assistance with Adobe Reader visit http://www.adobe.com/go/acrreader.
Windows is either a registered trademark of Microsoft Corporation in the United States and/or other countries. Mac is a trademark of Apple Inc., registered in the United States and other countries. Linux is the registered trademark of Linus Torvalds in the U.S. and other countries.
{3}------------------------------------------------
## 510(K) SUMMARY
| Applicant's Name: | KA Medical, LLC |
|------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Address: | 2890 Centre Pointe Drive<br>Roseville, MN 55113<br>USA |
| Phone: | 651.256.0802 |
| Fax: | 651.925.0371 |
| Contact Person: | John Oslund<br>Vice President and General Manager<br>Email: joslund@ka-medical.com |
| Alternate Contact: | Tim Bredahl<br>Director of Quality<br>Email: tbredahl@ka-medical.com |
| Date of Summary<br>Prepared: | April 13, 2019 |
| Name of Device: | Dr. Amplatz Micro Plug |
| Common/Usual<br>Name: | Vascular Device for promoting embolization |
| Classification<br>Name: | Vascular embolization device |
| Classification: | Product Code: KRD<br>Regulation Number: 21 CFR 870.3300<br>Class: II |
| Predicate and<br>Reference<br>Device(s): | Predicate:<br>Amplatzer ® Vascular Plug (AVP 1) - K031810<br>Reference:<br>Amplatzer® Vascular Plug 4 (AVP 4) - K113658<br>Amplatzer ® Vascular Plug 2 (AVP 2) - K071125 |
{4}------------------------------------------------
| Device Description: | The Dr. Amplatz Micro Plug includes the Micro Plug Device which is a self-expanding braided Nitinol vascular occlusion implant that is supplied with components used for implantation.<br><br>The Micro Plug Device has been designed with a material, size, configuration and shape that allows introduction through a catheter for the occlusion of blood vessels in the peripheral vasculature. The Micro Plug Devices are provided in four different diameters (3 mm - 6 mm) to treat different sized blood vessels in the peripheral vasculature. The Micro Plug Device has radiopaque marker bands attached to each end and a screw attachment for connection to a Delivery Wire. The Micro Plug Device is packaged collapsed within a Loader and attached to a 180 cm Delivery Wire that is provided within a hoop dispenser.<br><br>The delivery system includes a 125 cm Delivery Catheter that is provided within a hoop dispenser for delivery and implantation of the Device; the Delivery Catheter contains a standard luer hub adapter at the proximal end and a single radiopaque marker band at the distal end. The Delivery Catheter is hydrophilic coated. Tuohy Borst Valves are provided for flushing; a Torque Device is provided for releasing the Device.<br><br>The Dr. Amplatz Micro Plug is designed to be used under fluoroscopy for delivery and implantation in the peripheral vasculature by physicians trained in vascular embolization. |
|----------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Indication for Use: | The Dr. Amplatz Micro Plug is indicated for arterial embolization in the peripheral vasculature. |
| Comparison to Predicate Devices: | The Dr. Amplatz Micro Plug is substantially equivalent in its intended use/indications for use, technology/principal of operation, materials, and performance to the predicate device.<br><br>A comparison of the technological characteristics is summarized in the table below. |
| Device<br>Characteristic | New Device: Dr. Amplatz<br>Micro Plug | Predicate Device: Amplatzer ®<br>Vascular Plug - K031810 |
|----------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Product Code | KRD | Same |
| Intended<br>Use/Indications<br>for Use | indicated for arterial<br>embolization in the peripheral<br>vasculature | indicated for arterial and venous<br>embolizations in the peripheral<br>vasculature |
| Device<br>Components | • Micro Plug Device<br>• Delivery Catheter<br>• Delivery Wire<br>• Loader<br>• Torque Device<br>• Tuohy Borst Valve<br>Identical component list to<br>reference device K113658 | • Plug<br>• Delivery Wire<br>• Loader |
| Device<br>Characteristic | New Device: Dr. Amplatz<br>Micro Plug | Predicate Device: Amplatzer ®<br>Vascular Plug - K031810 |
| Design and<br>Dimensions | Micro Plug Device<br>Device contains 3 flat lobes<br>with 2 constrained central<br>regions.<br>Reference device K0171125<br>contains 2 flat lobes and a<br>central lobe with 2 constrained | Plug Device<br>Device is a single lobe - generally<br>barrel or tubular shaped with one flat<br>and one tucked end.<br>Device Diameter x Device Length<br>4 mm x 7 mm |
| | central regions.<br>Reference device K071125<br>diameter range (3 mm - 22<br>mm) is inclusive of the subject<br>device diameter range. | 6 mm x 7 mm<br>8 mm x 7 mm<br>10 mm x 7 mm<br>12 mm x 8 mm<br>14mm x 8 mm<br>16 mm x 8 mm |
| | Device Diameter x Device<br>Length<br>3 mm x 2.5 mm<br>4 mm x 2.5 mm<br>5 mm x 2.5 mm<br>6 mm x 2.5 mm | |
| | Delivery Catheter<br>Outer diameter 2.9 F<br>Inner diameter .028 in<br>Length 125 cm | No delivery catheter is included in the<br>predicate set. Introduction through<br>0.056 -0.088-inch inner diameter<br>catheters is recommended. |
| Materials | Micro Plug Device<br>Nitinol<br>Platinum-iridium<br>Stainless Steel | Plug<br>Same |
| | Delivery System<br>Loader<br>Nylon<br>LDPE<br>PTFE | Delivery System<br>Loader<br>PTFE |
| | Delivery Wire<br>Nitinol<br>Stainless steel | Delivery Wire<br>Nitinol<br>Stainless steel |
| | Delivery Catheter<br>Nylon<br>Pebax<br>Stainless steel braid<br>PTFE | Delivery Catheter<br>N/A (Commercially available 0.056 - |
| | Grilamed<br>Platinum/Iridium<br>Hydrophilic coating | 0.088-inch inner diameter guide<br>catheters) |
| Sterilization | Sterile/Ethylene Oxide SAL<br>10-6 | Same |
| Shelf Life | Three Year | Same |
| Disposable Single<br>Use | Yes | Same |
{5}------------------------------------------------
## K182944
Page 3 of 5
Page 3 of 5
{6}------------------------------------------------
- Performance Data: Safety and performance evaluations used to establish substantial equivalence of the subject device to the predicate device include the following:
- . Simulated Use
- o Flushing
- Advancement O
- Deployment Force O
- o Apposition
- Recapture o
- Release o
- Tensile Strength
- Radial Force ●
- Torque to Failure ●
- Kink to Failure ●
- Burst
- Fatique ●
- Leak Test .
- MRI Compatibility ●
- Interactions o
- o Heating
- o Artifacts
- Corrosion ●
- Nickel Leaching ●
- Packaging ●
- Seal Peel Strength o
- Visual O
- Bubble Leak Test o
- Sterilization
- o Fractional Cycle
- Half Cycle O
- Full Cycle o
- Biocompatibility ●
- Toxicological Risk Assessment o
- Cytotoxicity o
- o Sensitization
- Irritation O
- Systemic Toxicity o
- Implantation O
- Hemocompatibility O
- Complement Activation O
- Pyrogenicity o
{7}------------------------------------------------
- Shelf Life ●
- . Chronic GLP Animal Study
- o Acute performance
- o Chronic performance
- o Tissue response
Clinical testing was not required for the determination of substantial equivalence.
Test results demonstrated that all acceptance criteria were met; Conclusion: therefore, the device conforms to established product specifications and intended use. Based upon the same intended use and principle of operation, technology, and nonclinical testing it is concluded that the Dr. Amplatz Micro Plug is substantially equivalent to the predicate device.
Predicate graph will load when search results are available.
Embedding visualization will load when search results are available.
PDF viewer will load when search results are available.
Loading panels...
Select an item from Submissions
Click any panel, subpart, regulation, product code, or device to see details here.
Section Matches
Results will appear here.
Product Code Matches
Results will appear here.
Special Control Matches
Results will appear here.
Loading collections...
Loading
My Alerts
You will receive email notifications based on the filters and frequency you set for each alert.
Sort by:
Create Alert
Search Filters
Agent Token
Create a read-only bearer token for Claude, ChatGPT, or other agents that can call HTTP APIs.
Copy this now. It will not be shown again.
Connected apps
Apps you authorized through browser sign-in. Disconnecting revokes their access immediately.
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.