This article explains, in educational terms, liquid embolic agent — how the technology works and where it fits. Mechanical thrombectomy removes the clot with a catheter-based device, and it is used in selected patients alongside or after intravenous thrombolysis where indicated. As a medical device manufacturer, INVAMED develops technologies in this area; the information here is educational and not medical advice.
Background: Acute Ischemic Stroke and Intracranial Aneurysm Intervention
Aneurysm techniques include packing the sac with detachable coils and redirecting flow across the neck with a densely braided flow diverter so the sac thromboses over time. Patient eligibility, the treatment window, and device selection are all determined by the treating neurointerventional team using imaging and current criteria. Mechanical thrombectomy removes the clot with a catheter-based device, and it is used in selected patients alongside or after intravenous thrombolysis where indicated.
Liquid Embolic Agents
Non-adhesive liquid embolic agents are injected to fill and occlude abnormal vascular channels such as arteriovenous malformations or hypervascular tumors. As the solvent diffuses into blood, the copolymer precipitates from the outer surface inward, forming a solid, non-adhesive cast, with a radiopaque component for fluoroscopic visibility. INVAMED's Libro Non-Adhesive Embolization Agent combines EVOH copolymer, DMSO solvent, and tantalum powder for radiopacity, and per INVAMED is offered in multiple viscosity formulas, including 6 and 8 percent concentrations, for cerebral AVMs and tumors. Agent concentration and injection technique are selected by the operator for the target lesion.
Design and Technical Notes
INVAMED's neurovascular portfolio spans clot retrieval, aspiration, aneurysm packing, embolization, and the access tools that reach the intracranial circulation. Clot characteristics and vessel tortuosity influence whether a stent retriever, aspiration, or combined technique is chosen. Manufacturer statements, including the described up-to-24-hour window for the KinG device, reflect product content and do not establish individual eligibility.
Key Considerations
- Speed to reperfusion is a central factor in stroke thrombectomy, which shapes device readiness and workflow in eligible patients.
- Clot characteristics and vessel tortuosity influence whether a stent retriever, aspiration, or combined technique is chosen.
- All INVAMED neurovascular devices are intended for use by trained neurointerventional operators under imaging guidance and per the IFU.
Frequently Asked Questions
What is the regulatory status of these neurovascular devices?
Device availability and regulatory status vary by country. Please contact INVAMED or your authorized local distributor for current regulatory information applicable to your region.
What is the INVAMED stent retriever called?
INVAMED's stent retriever is the KinG Intracranial Revascularization Device, a self-expanding nitinol device with platinum markers for fluoroscopic visualization.
Who determines eligibility for thrombectomy?
The treating stroke team determines eligibility using imaging and current criteria; this article is educational and not medical advice.
About INVAMED
INVAMED operates a dedicated R&D center (INVAcenter) focused on minimally invasive device development. INVAMED is a medical device manufacturer headquartered in Ankara, Turkey, founded in 2005.
Clinical and Technical Context
All INVAMED neurovascular devices are intended for use by trained neurointerventional operators under imaging guidance and per the IFU. Coil sizing and packing strategy are determined by the neurointerventionalist for the specific aneurysm. INVAMED's InWIRE Neurovascular Guidewire and neurovascular microcatheters and distal access catheters support this access role. Because brain tissue is highly time-sensitive, rapid restoration of flow is central to endovascular stroke care in eligible patients. Access-device selection is made by the operator according to the vascular pathway and the therapy being delivered. Agent concentration and injection technique are selected by the operator for the target lesion. Mechanical thrombectomy removes the clot with a catheter-based device, and it is used in selected patients alongside or after intravenous thrombolysis where indicated. INVAMED's neurovascular portfolio includes flow diverter stents for this parent-vessel reconstruction approach to selected aneurysms.
Related on INVAMED
- Neurovascular Interventions — product category
- Choosing a Neurovascular Interventions Supplier: What Buyers Should Know
- Who is eligible for mechanical thrombectomy?
- Understanding Flow Diverter Stents
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.