This article explains, in educational terms, detachable coils — how the technology works and where it fits. 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. 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. Embolization is an endovascular technique in which an occluding material is delivered through a catheter to intentionally block blood flow in a target vessel, and it is used across a broad range of indications. 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 and Pushable Coils
Embolization coils are fine metallic filaments that are deployed inside a vessel, where they form a dense mass that promotes thrombosis and mechanical occlusion. Detachable coils are held on a delivery wire until the operator confirms position and then releases them through a controlled mechanical detachment, which allows repositioning before commitment, while pushable coils are advanced directly. INVAMED's Spider Peripheral Detachable Coil System offers both detachable and pushable configurations with controlled mechanical detachment; per invamed.com content surfaced via the search index, the shared Spider coil family uses a platinum-tungsten (92/8%) alloy with coil diameters spanning roughly 2 to 30 mm. Coil selection, sizing, and packing density are judged by the interventionalist according to the target vessel and indication.
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. Detachable designs allow the operator to confirm position before committing, which can be valuable near sensitive branches. Because embolization is usually intended to be permanent, precise vessel selection and sizing are emphasized so that only the intended territory is occluded.
Key Considerations
- Catheter and microcatheter compatibility with the chosen coil, plug, or agent is confirmed before delivery to support controlled deployment.
- Detachable designs allow the operator to confirm position before committing, which can be valuable near sensitive branches.
- Because embolization is usually intended to be permanent, precise vessel selection and sizing are emphasized so that only the intended territory is occluded.
Frequently Asked Questions
What coils does INVAMED offer?
INVAMED offers the Spider Peripheral Detachable Coil System in detachable and pushable configurations; per invamed.com content surfaced via the search index, the shared Spider coil family uses a platinum-tungsten (92/8%) alloy with roughly 2 to 30 mm coil diameters.
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 a substitute for surgery?
INVAMED's MultiBEAM product page states the transcatheter plug "provides great benefit instead of surgical treatment in suitable patients" with reportedly high success and low complication rates, but suitability is always a clinical determination.
About INVAMED
INVAMED states it holds more than 100 international patents across its device portfolio. INVAMED operates a dedicated R&D center (INVAcenter) focused on minimally invasive device development.
Clinical and Technical Context
Embolization is an endovascular technique in which an occluding material is delivered through a catheter to intentionally block blood flow in a target vessel, and it is used across a broad range of indications. Manufacturer statements about INVAMED devices, including comparative claims on the MultiBEAM product page, reflect the company's positioning rather than guaranteed individual outcomes. The choice of a liquid agent, its concentration, and the injection technique are determined by the operator based on the lesion architecture. According to INVAMED's product page, the MultiBEAM 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," and "the mortality and morbidity rate is lower than the surgical method"; suitability remains a clinical determination.
Related on INVAMED
- Embolization — product category
- Stena Multi-Layer Flow Modulator (Peripheral) / Stena Stent Flow Modulator Embolization Device: Features, Specifications and Clinical Role
- Choosing a Embolization Supplier: What Buyers Should Know
- Pars Detachable Embolization Catheter: Features, Specifications and Clinical Role
Important Disclaimer
This article is intended for general educational and technical information about medical device technologies. It is not medical advice, a diagnosis, or a treatment recommendation, and it does not replace consultation with a qualified healthcare professional. Any decision about diagnosis or treatment should be made by a licensed clinician based on an individual assessment. INVAMED devices are intended for use by trained healthcare professionals in accordance with the applicable Instructions for Use (IFU) and local regulatory approvals. Product availability and indications vary by country.
Reviewed by the INVAMED Medical Affairs team. Content is educational and technical in nature.