The Penumbra Coil System is intended for the embolization of: Intracranial aneurysms Other neurovascular abnormalities such as arteriovenous malformations and arteriovenous fistulae Arterial and venous embolizations in the peripheral vasculature
Device Story
Penumbra Coil System consists of platinum/tungsten and Nitinol coils attached to stainless steel/polymer detachment pushers; includes detachment handle. Used for embolization of intracranial aneurysms, neurovascular abnormalities, and peripheral vascular embolizations. Operated by physicians in clinical settings. Coils are delivered via catheter to target site; detachment handle triggers release of coil to occlude vessel or aneurysm. Provides mechanical embolization to reduce blood flow to target lesion; benefits patients by treating aneurysms and vascular malformations.
Clinical Evidence
No clinical data. Evidence consists of biocompatibility testing per ISO 10993-1 (cytotoxicity, sensitization, irritation, systemic toxicity, genotoxicity, implantation, haemocompatibility, pyrogenicity) and design verification bench testing (dimensional/visual inspection, joint tensile strength, fatigue, friction, torsion, stiffness, corrosion, handle function, MRI compatibility, simulated use). All tests passed.
Technological Characteristics
Materials: Platinum/tungsten and Nitinol coils; stainless steel/polymer detachment pusher. Energy: Mechanical detachment via handle. Connectivity: None. Sterilization: Ethylene Oxide (EtO). Shelf-life: 36 months. Form factor: Various secondary diameters and shapes.
Indications for Use
Indicated for embolization of intracranial aneurysms, neurovascular abnormalities (arteriovenous malformations, arteriovenous fistulae), and arterial/venous embolizations in peripheral vasculature.
Regulatory Classification
Identification
A neurovascular embolization device is an intravascular implant intended to permanently occlude blood flow to cerebral aneurysms and cerebral ateriovenous malformations. This does not include cyanoacrylates and other embolic agents, which act by polymerization or precipitation. Embolization devices used in other vascular applications are also not included in this classification, see § 870.3300.
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 § 882.1(e).
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# K (20330
APR - 2 2012
### 1 510(k) Summary of Safety & Effectiveness
## (as required by 21 CFR 807.92)
Pursuant to Section 12, Part (a)(i)(3A) of the Safe Medical Devices Act of 1990, Penumbra Inc. is providing the summary of Substantial Equivalence for the Penumbra Coil System/Penumbra Coil 400TM
## 1.1 Sponsor/Applicant Name and Address
Penumbra, Inc. 1351 Harbor Bay Parkway Alameda, CA 94502
### Sponsor Contact Information 1.2
Emilly Tojima Nurthen Penumbra, Inc. Regulatory Affairs Program Manager TEL: 510-748-3314 FAX: 510-217-6414
E-MAIL: emilly.nurthen@penumbrainc.com
#### 1.3 Date of Preparation of 510(k) Summary
March 20, 2012
### 1.4 Device Trade or Proprietary Name
Penumbra Coil System/Penumbra Coil 400™
### Device Classification 1.5
Device, Vascular and Neurovascular Embolization (Product Code: HCG& KRD)
#### 1.6 Predicate Devices
| Name of Predicate Device | 510(k)<br>Number |
|----------------------------------------|------------------|
| Penumbra Coil System/Penumbra Coil 400 | K103305 |
### Predicate Device Comparison 1.7
The Penumbra Coil System/Penumbra Coil 400, subject of this 510(k), has the same technological characteristics as the predicate device, and the change is limited to revised product labeling.
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## Device Description 1.8
The Penumbra Coil System consists of the following components, which are sold separately:
- . Standard Complex Coils attached to detachment pusher
- . Soft Complex Coils attached to detachment pusher
- J Soft Coils attached to detachment pusher �
- Curve Extra Soft Coils attached to detachment pusher .
- Curve Complex Extra Soft Coils attached to detachment pusher .
- Detachment Handle .
The coils are primarily manufactured from platinum wire and Nitinol wire. The coils are attached to a stainless steel / polymer detachment pusher. The coils are available in varying secondary diameters and shapes based on coil type.
The Penumbra Coils are sterile, non-pyrogenic and intended for single use only. The Penumbra Detachment Handle is sterile, non-pyrogenic and may be used to detach multiple coils within a single patient procedure.
### 1.9 Intended Use
The Penumbra Coil System is intended for the embolization of:
- · · Intracranial aneurysms
- · Other neurovascular abnormalities such as arteriovenous malformations and arteriovenous fistulae
- · Arterial and venous embolizations in the peripheral vasculature
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| | Penumbra Embolization Coil | Penumbra<br>Embolization Coil |
|----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------|
| 510(k) No. | K103305 | To be K120330 |
| Classification | Class II, HCG, KRD | Class II, HCG, KRD |
| Indication | Intended for the embolization of:<br>• Intracranial aneurysms<br>• Other neurovascular abnormalities such<br>as arteriovenous malformations and<br>arteriovenous fistulae<br>• Arterial and venous embolizations in the<br>peripheral vasculature | Same |
| Materials | Coil: Platinum/tungsten, Nitinol<br><br>Pusher: stainless steel, polymer | Same |
| Sterilization | EtO | Same |
| Shelf-Life | 36-Months | Same |
## 1.10 Comparison to predicate Device
## 1.11 Summary of Non-clinical Data:
## Biocompatibility 1.11.1
Biocompatibility tests conducted with Penumbra Coil System were selected in accordance with ISO-10993 -1 guidelines (Biological Evaluation of Medical Devices) for a blood contacting permanent implant device. All studies were conducted pursuant to 21 CFR, Part 58, Good Laboratory Practices.
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| Test | Method | Result |
|-------------------------------------------|----------------------------------------------|-----------------------------------------------------------------|
| Cytotoxicity | L929 MEM Elution Test | Non-Toxic |
| Sensitization | Kligman Maximization | Non-Sensitizing |
| Intracutaneous<br>Reactivity (Irritation) | Intracutaneous Injection<br>Test | Non-Irritant |
| Systemic Toxicity*<br>(Acute) | ISO Acute Systemic<br>Injection Test | Non-Toxic |
| Subacute / Subchronic<br>Toxicity | <i>In vivo</i> Subacute Toxicity | Non-Toxic |
| Genotoxicity | Ames test<br>Mouse Lymphoma | Non-Mutagenic |
| Implantation | <i>In vivo</i> Implantation | Non-Irritant |
| Haemocompatibility | Complement Activation | No greater biological<br>response than<br>corresponding control |
| | Hemolysis<br><i>In vivo</i> thrombogenicity | Non-Hemolytic<br>Non-Thrombogenic |
| Pyrogenicity | USP Material Mediated<br>Rabbit Pyrogen Test | Non-Pyrogenic |
# ISO-10993 GLP Testing Summary for the Penumbra Coil System
In summary, non-clinical testing found the Penumbra Coil System to be biocompatible according to the requirements of ISO 10993-1. Additionally, the product was found to be non-pyrogenic.
## 1.11.2 Design Verification (Bench-Top Testing)
Design Verification testing was conducted to evaluate the physical and mechanical properties of the Penumbra Coil System. All studies were conducted using good scientific practices and statistical sampling methods as required by the Penumbra Design Control procedures. All testing was performed using units which were 2x sterilized and met finished goods release requirements. The tests performed on the Penumbra Coil System included:
- Dimensional / Visual Inspection (all sizes) .
- Joint Tensile Strength ●
- Fatigue .
- Friction .
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- Torsion .
- Stiffness .
- Corrosion .
- Handle Function .
- MRI Compatibility .
- GLP Simulated Use .
All tests performed passed successfully.
The physical, mechanical and performance testing of the subject Penumbra Coil System demonstrate that the product is safe and effective for its labeled indications and is Substantially Equivalent to the currently marketed predicate device.
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Image /page/5/Picture/1 description: The image shows the logo for the Department of Health & Human Services (HHS) of the United States. The logo consists of a stylized depiction of an eagle or bird-like figure, with three curved lines representing its wings or body. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged in a circular fashion around the bird symbol.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room -WO66-G609 Silver Spring, MD 20993-0002
Penumbra, Inc. c/o Mr. Seth Schulman Director, Regulatory Affairs 1351 Harbor Bay Parkway Alameda, CA 94502
Re: K120330
Trade/Device Name: Penumbra Coil System Regulation Number: 21 CFR 882.5950 Regulation Name: Neurovascular Embolization Device Regulatory Class: Class II Product Code: HCG, KRD Dated: February 1, 2012 Received: February 2, 2012
Dear Mr. Schulman:
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.
APR - 2 2012
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Page 2 - Mr. Seth Schulman
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807): labeling (21 CFR Part 801): medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (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 go to http://www.fda.gov/AboutFDA/CentersOffices/CDRH/CDRHOffices/ucm115809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR 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 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.
Qurle. A. Rimmer mo for
Malvina B. Evdelman, MD. Director Division of Ophthalmic. Neurological, and Ear, Nose and Throat Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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## Indications for Use
## 510(k) Number (if known): K120330
## Device Name: Penumbra Coil System
Indications For Use:
The Penumbra Coil System is indicated for the embolization of:
- Intracranial aneurysms -
- Other neurovascular abnormalities such as arteriovenous malformations and : arteriovenous fistulae
- Arterial and venous embolizations in the peripheral vasculature
## Prescription Use . X (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 807 Subpart C)
# (PLEASE DO NOT WRITE BELOW LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
AND/OR
Concurrence of CDRH, Office of Device Evaluation (ODE)
JOE HUTTER
. ( Page 1 of
(Division Sign-Off) Division of Ophthalmic, Neurological and Ear, Nose and Throat Devices .
KI20330 510(k) Number.
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.