This is a technical overview of an INVAMED device within the embolization portfolio. Common applications described in the literature include peripheral aneurysms, arteriovenous fistulas (AVFs) and malformations (AVMs), gastrointestinal or intestinal bleeding, pelvic congestion, varicocele, and endoleaks after aortic repair. As a medical device manufacturer, INVAMED develops technologies in this area; the information here is educational and not medical advice.
Background: Endovascular Embolization
Whether embolization is appropriate, and which agent and delivery system are chosen, is a clinical decision that weighs the target vessel, surrounding anatomy, and overall condition of the patient. Because embolization is generally intended to be permanent, careful vessel selection and sizing are emphasized so that only the intended territory is occluded. Transarterial approaches also include transarterial radioembolization (TARE) and other targeted therapies delivered through dedicated microcatheters, always as determined by the treating interventional team.
MultiBEAM Embolization Plug: Overview
A multisided (multi-lobe) self-expanding nitinol plug for vascular or aneurysmal occlusion, achieving reliable embolization in peripheral or saccular expansions with minimal migration. As an alternative to surgery it provides percutaneous, catheter-delivered closure in pelvic, varicocele, endoleak, TARE, and peripheral aneurysm indications and for intestinal bleeding; the shape-memory nitinol frame self-centers in the defect, is filled with special fibers that trigger thrombosis, is echogenic for ultrasound guidance, and can be recaptured/redeployed thanks to super-elastic properties.
Technical Specifications
Specifications per INVAMED product documentation; confirm current details in the official IFU.
| Attribute | Detail |
|---|---|
| Specification | Nitinol framework with possible PTFE or polyester covering; fiber-filled to promote thrombosis; radiopaque platinum markers; detachable point |
| Available diameters | 4, 6, 8, 10, 12, 14, 16 mm; unconstrained length 7-8 mm |
| Specification | Suitable for occlusion of arteries from 2.6 to 6.2 mm (size table lists treatable vessel diameters 2.5-12.5 mm across sizes) |
| Specification | Delivered via a 4F or 5F catheter (0.038 inch inner diameter lumen); advanced through a 5F guide sheath |
| Sizing rule | choose device equal to or 1 mm smaller than the target landing zone; placed under fluoroscopy or ultrasound guidance |
Reported Performance
According to INVAMED, "MultiBEAM vascular plug applied by transcatheter method provides great benefit instead of surgical treatment in suitable patients due to its high success, low complication rates and easy applicability" (product page, verbatim). According to INVAMED, "the mortality and morbidity rate is lower than the surgical method" (product page, verbatim). These figures reflect manufacturer or published data and are not a guarantee of individual results.
How It Works and Where It Fits
INVAMED organizes its embolization portfolio around the mechanism of occlusion, offering detachable and pushable coils, a fiber-filled vascular plug, dedicated delivery catheters, a flow-modulating device, and a non-adhesive liquid agent. Each device is intended for use by trained interventionalists under imaging guidance and per the IFU. In peripheral aneurysms, coils can be packed within the aneurysm sac or used to occlude a feeding vessel, promoting thrombosis and reducing flow into the aneurysm. A vascular plug is a self-contained occluding device, typically a nitinol framework, that is positioned across a target vessel to arrest flow, often in a single deployment.
Key Considerations
- Matching the embolic agent to the target level of the vascular tree, from proximal plugs and coils to distal particles or liquids, is central to planning.
- Because embolization is usually intended to be permanent, precise vessel selection and sizing are emphasized so that only the intended territory is occluded.
- Catheter and microcatheter compatibility with the chosen coil, plug, or agent is confirmed before delivery to support controlled deployment.
Frequently Asked Questions
Who decides which embolization device to use?
A trained interventionalist selects the agent and delivery system based on the target vessel and indication; this article is educational and not a treatment recommendation.
Is embolization permanent?
Embolization is generally intended to be permanent with coils, plugs, and solidifying liquids, though some particle agents are more temporary; the expected durability is discussed with the treating physician.
Does INVAMED make a liquid embolic agent?
Yes; the Libro Non-Adhesive Embolization Agent is cross-listed in INVAMED's embolization portfolio as a non-adhesive liquid agent, with delivery determined by the operator.
About INVAMED
INVAMED operates a dedicated R&D center (INVAcenter) focused on minimally invasive device development. INVAMED states it maintains a growing portfolio of international patents across its device range.
Related on INVAMED
- Embolization — product category
- Vascular Plugs: Technology, Uses and Considerations
- Inside the Libro Non-Adhesive Embolization Agent (cross-listed): Design and Applications
- Stena Multi-Layer Flow Modulator (Peripheral) / Stena Stent Flow Modulator Embolization Device: Features, Specifications and Clinical Role
Important Disclaimer
The information here is provided for educational purposes and to describe device technology; it is not a substitute for professional medical advice, diagnosis, or treatment. Only a licensed healthcare provider can determine whether a given procedure or device is appropriate for a specific patient. INVAMED products are restricted to use by qualified professionals following the official IFU. Regulatory clearance and labeling differ between regions, and not all products or indications are available in every market.
Reviewed by the INVAMED Medical Affairs team. Content is educational and technical in nature.