This article explains, in educational terms, embolization microcatheter — how the technology works and where it fits. 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
The occluding agents fall into families such as detachable coils, vascular plugs, liquid embolic agents, and particles, each with a different mechanism of vessel closure. Transarterial approaches also include transarterial radioembolization (TARE) and other targeted therapies delivered through dedicated microcatheters, always as determined by the treating interventional team. Because embolization is generally intended to be permanent, careful vessel selection and sizing are emphasized so that only the intended territory is occluded.
Delivery Microcatheters and Catheters
Precise embolization depends on delivery catheters and microcatheters that can navigate tortuous vessels and position the occluding agent at the intended site. Catheter inner-diameter lumen and compatibility with the chosen coil, plug, or agent are practical factors the operator confirms before delivery. INVAMED offers the Pars Detachable Embolization Catheter and the MicroDELIVERY Embolization Catheter as dedicated delivery devices within the portfolio. Catheter selection is guided by the target anatomy and by the delivery requirements of the specific embolic being used.
Design and Technical Notes
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. Manufacturer statements about INVAMED devices, including comparative claims on the MultiBEAM product page, reflect the company's positioning rather than guaranteed individual outcomes. 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.
Key Considerations
- All INVAMED embolization devices are intended for use by trained interventionalists under imaging guidance and in accordance with the IFU.
- 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.
- Manufacturer statements about INVAMED devices, including comparative claims on the MultiBEAM product page, reflect the company's positioning rather than guaranteed individual outcomes.
Frequently Asked Questions
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.
What vessel sizes can the MultiBEAM plug occlude?
According to its product page, the MultiBEAM Embolization Plug is suitable for occlusion of arteries from 2.6 to 6.2 mm, is offered in 4 to 16 mm diameters, and is delivered through a 4F or 5F catheter.
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.
About INVAMED
Device availability and regulatory status vary by country. Please contact INVAMED or your authorized local distributor for current regulatory information applicable to your region.
Clinical and Technical Context
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. Detachable designs allow the operator to confirm position before committing, which can be valuable near sensitive branches. INVAMED's Stena Multi-Layer Flow Modulator (Peripheral), also described as the Stena Stent Flow Modulator Embolization Device, is positioned within this category. INVAMED's MultiBEAM Embolization Plug uses a nitinol framework with possible PTFE or polyester covering, is fiber-filled to promote thrombosis, carries radiopaque platinum markers, and is available in diameters of 4, 6, 8, 10, 12, 14, and 16 mm with an unconstrained length of 7 to 8 mm; according to the product page, it is suitable for occlusion of arteries from 2.6 to 6.2 mm and is delivered through a 4F or 5F catheter with a 0.038 inch inner-diameter lumen advanced through a 5F guide sheath.
Related on INVAMED
- Embolization — product category
- Particles vs Coils: What Is the Difference?
- Inside the Libro Non-Adhesive Embolization Agent (cross-listed): Design and Applications
- MultiBEAM Embolization Plug: 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.