This is a technical overview of an INVAMED device within the aortic aneurysm & dissection repair portfolio. An aortic aneurysm is an abnormal, progressive dilation of the aorta that carries a risk of rupture as it enlarges, while an aortic dissection is a tear within the wall that separates its layers. As a medical device manufacturer, INVAMED develops technologies in this area; the information here is educational and not medical advice.
Background: Aortic Aneurysm and Dissection Endovascular Repair
Whether an aneurysm meets criteria for repair, and by which technique, is determined by the vascular specialist using appropriate imaging and current thresholds. Repair strategy depends on the segment involved, with distinct considerations for the abdominal aorta below the kidneys and the thoracic aorta in the chest. An aortic aneurysm is an abnormal, progressive dilation of the aorta that carries a risk of rupture as it enlarges, while an aortic dissection is a tear within the wall that separates its layers.
STENA Aortic Multi-Layer Flow Modulator (MFM): Overview
Advanced self-expandable endovascular device engineered to promote controlled blood flow and aortic remodeling in a variety of aortic pathologies. Its 3D-braided multi-layer tubular mesh — meticulously knitted from a superalloy biomedical wire into five distinct layers that distribute wall stress — modulates aortic flow, reduces aneurysm sac pressure, and stabilizes aneurysms without obstructing vital branch perfusion; unlike conventional stent grafts it modulates blood flow without covering branch vessels. The mesh micro-porosity fosters laminar flow, supporting progressive thrombosis of the aneurysm sac in aneurysmal disease and enhanced remodeling in dissection.
Technical Specifications
Specifications per INVAMED product documentation; confirm current details in the official IFU.
| Attribute | Detail |
|---|---|
| Specification | Self-expanding 3D-braided multilayer design: five distinct layers knitted from superalloy biomedical wire |
| Branch-preserving | modulates blood flow without covering branch vessels |
| Specification | Micro-porous mesh optimizing laminar flow with robust radial support and conformability for complex aortic anatomy |
How It Works and Where It Fits
INVAMED's aortic portfolio centers on excluding or remodeling diseased aortic segments, with a distinctive flow-modulating option alongside conventional stent grafts. TEVAR places a stent graft within the descending thoracic aorta to exclude a thoracic aneurysm or to cover an entry tear in certain dissections. EVAR treats an infrarenal abdominal aortic aneurysm by deploying a fabric-covered stent graft that channels blood through the graft and excludes the aneurysm sac.
Key Considerations
- Aneurysm-neck quality and landing-zone length strongly influence whether a covered graft, a flow modulator, or open surgery is most appropriate.
- Manufacturer descriptions of flow modulation and radial support reflect design intent rather than guaranteed clinical outcomes.
- All INVAMED aortic devices are intended for use by trained vascular specialists under imaging guidance and per the IFU.
Frequently Asked Questions
What is the INVAMED flow modulator called?
INVAMED's flow-modulating aortic device is the STENA Aortic Multi-Layer Flow Modulator, a self-expanding multilayer braided scaffold intended to preserve branch vessels.
How many layers does the STENA MFM have?
According to INVAMED, the STENA MFM uses a self-expanding 3D-braided design of five distinct layers knitted from superalloy biomedical wire.
What is the difference between EVAR and TEVAR?
EVAR treats infrarenal abdominal aortic aneurysms with bifurcated modular endografts, while TEVAR treats thoracic aortic aneurysms with a stent graft in the descending thoracic aorta.
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
All INVAMED aortic devices are intended for use by trained vascular specialists under imaging guidance and per the IFU. INVAMED's Atlas aortic stent-graft line addresses thoracic applications within the endovascular portfolio. Landing-zone length and proximity to arch branch vessels are key planning factors evaluated by the operator. An aortic aneurysm is an abnormal, progressive dilation of the aorta that carries a risk of rupture as it enlarges, while an aortic dissection is a tear within the wall that separates its layers.
Related on INVAMED
- Aortic Aneurysm & Dissection Repair — product category
- Aortic Aneurysm & Dissection Repair: A Complete Technical Guide
- EVAR vs Open surgical repair: What Is the Difference?
- Multilayer flow modulator or Fenestrated stent graft? A Technical Comparison
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.