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
Endovascular repair reaches the aorta through the femoral arteries and deploys a device from inside the vessel, avoiding a large open incision in appropriately selected patients. Repair strategy depends on the segment involved, with distinct considerations for the abdominal aorta below the kidneys and the thoracic aorta in the chest. Thoracic endovascular aortic repair (TEVAR) treats thoracic aortic aneurysms with a stent graft placed in the descending thoracic aorta.
Atlas Aortic Stent Graft: Overview
Aortic stent graft (endograft) for endovascular aneurysm repair of the aorta, part of the Atlas endovascular platform.
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. 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. Endovascular grafts rely on healthy sealing zones above and below the aneurysm where the device apposes the aortic wall to prevent blood from entering the sac.
Key Considerations
- Lifelong imaging surveillance is a standard requirement after endovascular repair to detect endoleak or migration.
- Accurate, calibrated cross-sectional imaging is essential for sizing, oversizing, and defining adequate sealing zones before an endovascular repair.
- All INVAMED aortic devices are intended for use by trained vascular specialists under imaging guidance and per the IFU.
Frequently Asked Questions
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 regulatory status of these aortic 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 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.
Clinical and Technical Context
INVAMED's Atlas aortic stent-graft line addresses thoracic applications within the endovascular portfolio. Manufacturer descriptions of flow modulation and radial support reflect design intent rather than guaranteed clinical outcomes. The surveillance schedule and any need for re-intervention are directed by the treating clinician. INVAMED's STENA MFM is designed to modulate flow without covering branch vessels, positioning it for anatomies where preserving branches is a priority. INVAMED provides diameter and length options across its Atlas aortic grafts to accommodate a range of neck and landing-zone dimensions. Suitability for a flow-modulating approach is highly anatomy-dependent and is determined by the vascular specialist. Where a bare stent fits into a given repair is a technical decision made by the vascular specialist. Accurate, calibrated cross-sectional imaging is essential for sizing, oversizing, and defining adequate sealing zones before an endovascular repair. Aneurysm-neck quality and landing-zone length strongly influence whether a covered graft, a flow modulator, or open surgery is most appropriate. Sizing and oversizing decisions are made from calibrated imaging by the operator, following the device instructions for use. Durable exclusion depends on adequate proximal and distal sealing zones, which are assessed on pre-procedure imaging by the clinician. Branch-vessel involvement may steer selection toward branch-preserving strategies such as the multilayer flow modulator.
Related on INVAMED
- Aortic Aneurysm & Dissection Repair — product category
- Endovascular Aneurysm Repair (EVAR): Technology, Uses and Considerations
- Multilayer Flow Modulator (MFM): How It Works and Why It Matters
- 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.