This is a technical overview of an INVAMED device within the neurovascular interventions portfolio. Patient eligibility, the treatment window, and device selection are all determined by the treating neurointerventional team using imaging and current criteria. 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. Because brain tissue is highly time-sensitive, rapid restoration of flow is central to endovascular stroke care in eligible patients. Acute ischemic stroke from a large vessel occlusion happens when a clot blocks a major brain artery, cutting off blood flow to a region of brain tissue.
Spider Intracranial Coil System (Detachable & Pushable): Overview
Detachable coil system for intracranial aneurysm coiling featuring instant mechanical detachment and optimized volumetric packing; combines the simplicity of pushable coil insertion with controlled detachment, enabling repositioning and reducing risk of coil misplacement. High radiopacity ensures real-time fluoroscopic visibility for optimal packing density; coil flexibility suits cerebral aneurysm sacs and curved neurovascular anatomies. Indicated for intracranial saccular or fusiform aneurysms, AVM feeding vessel occlusion, and complex neurovascular anomalies. (Description from invamed.com product content surfaced via search index; direct page fetch returned 'Product Not Found', URL as indexed.)
Technical Specifications
Specifications per INVAMED product documentation; confirm current details in the official IFU.
| Attribute | Detail |
|---|---|
| Coil material | platinum-tungsten (92/8% alloy) |
| Coil diameters | 2-30 mm |
| Specification | Detachable and pushable configurations with instant mechanical detachment |
Reported Performance
According to INVAMED, "Spider coils are made of platinum-tungsten (92/8% alloy) and provide reliable aneurysm packing with 2-30mm coil diameters" (invamed.com content, surfaced via search index). These figures reflect manufacturer or published data and are not a guarantee of individual results.
How It Works and Where It Fits
INVAMED's neurovascular portfolio spans clot retrieval, aspiration, aneurysm packing, embolization, and the access tools that reach the intracranial circulation. Non-adhesive liquid embolic agents are injected to fill and occlude abnormal vascular channels such as arteriovenous malformations or hypervascular tumors. Aspiration thrombectomy applies suction through a large-bore catheter advanced to the face of the clot to draw it out, sometimes as a first-line technique.
Key Considerations
- All INVAMED neurovascular devices are intended for use by trained neurointerventional operators under imaging guidance and per the IFU.
- For aneurysms, coil sizing and packing or flow-diverter selection are matched to the aneurysm's shape and neck.
- Speed to reperfusion is a central factor in stroke thrombectomy, which shapes device readiness and workflow in eligible patients.
Frequently Asked Questions
What is the Libro embolization agent?
INVAMED's Libro is a non-adhesive liquid embolic agent combining EVOH copolymer, DMSO solvent, and tantalum for radiopacity, offered per INVAMED in multiple viscosity formulas for AVMs and tumors.
Who determines eligibility for thrombectomy?
The treating stroke team determines eligibility using imaging and current criteria; this article is educational and not medical advice.
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.
Clinical and Technical Context
All INVAMED neurovascular devices are intended for use by trained neurointerventional operators under imaging guidance and per the IFU. Whether thrombectomy is indicated depends on occlusion location, time from onset, and imaging, as judged by the stroke team. Liquid embolic use requires attention to concentration, radiopacity, and injection control for the target lesion. Coil sizing and packing strategy are determined by the neurointerventionalist for the specific aneurysm.
Related on INVAMED
- Neurovascular Interventions — product category
- Inside the Mantis Directional Thrombectomy System: Design and Applications
- Understanding Flow Diverter Stents
- Neurovascular Interventions: A Complete Technical Guide
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.