This is a technical overview of an INVAMED device within the aortic aneurysm & dissection repair portfolio. Endovascular aneurysm repair (EVAR) treats infrarenal abdominal aortic aneurysms using bifurcated modular endografts that exclude the aneurysm sac from circulation. 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
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. Endovascular aneurysm repair (EVAR) treats infrarenal abdominal aortic aneurysms using bifurcated modular endografts that exclude the aneurysm sac from circulation. Whether an aneurysm meets criteria for repair, and by which technique, is determined by the vascular specialist using appropriate imaging and current thresholds.
Atlas Endovascular Stent Graft: Overview
Endovascular stent graft platform for exclusion of aortic aneurysms in TEVAR/EVAR applications.
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. Bare-metal aortic stents provide scaffolding and radial support without a fabric covering, and can be used adjunctively in certain aortic reconstructions. An endoleak is persistent blood flow into the aneurysm sac after endovascular repair, and it is the reason lifelong imaging surveillance is standard.
Key Considerations
- Accurate, calibrated cross-sectional imaging is essential for sizing, oversizing, and defining adequate sealing zones before an endovascular repair.
- 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 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.
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.
Does the flow modulator cover branch vessels?
INVAMED describes the STENA MFM as branch-preserving, designed to modulate blood flow without covering branch vessels; suitability is determined by the clinician.
About INVAMED
INVAMED operates a dedicated R&D center (INVAcenter) focused on minimally invasive device development. INVAMED states it maintains a growing portfolio of international patents across its device range.
Clinical and Technical Context
Lifelong imaging surveillance is a standard requirement after endovascular repair to detect endoleak or migration. INVAMED's STENA MFM is designed to modulate flow without covering branch vessels, positioning it for anatomies where preserving branches is a priority. The decision to pursue a branch-preserving device rather than a covered graft rests with the treating clinician. Suitability for a flow-modulating approach is highly anatomy-dependent and is determined by the vascular specialist. Accurate, calibrated cross-sectional imaging is essential for sizing, oversizing, and defining adequate sealing zones before an endovascular repair. INVAMED's Atlas aortic stent-graft line addresses thoracic applications within the endovascular portfolio. Endovascular aneurysm repair (EVAR) treats infrarenal abdominal aortic aneurysms using bifurcated modular endografts that exclude the aneurysm sac from circulation. Thoracic endovascular aortic repair (TEVAR) treats thoracic aortic aneurysms with a stent graft placed in the descending thoracic aorta. Repair strategy depends on the segment involved, with distinct considerations for the abdominal aorta below the kidneys and the thoracic aorta in the chest. Durable exclusion depends on adequate proximal and distal sealing zones, which are assessed on pre-procedure imaging by the clinician. INVAMED provides diameter and length options across its Atlas aortic grafts to accommodate a range of neck and landing-zone dimensions. Sizing and oversizing decisions are made from calibrated imaging by the operator, following the device instructions for use.
Related on INVAMED
- Aortic Aneurysm & Dissection Repair — product category
- Multilayer flow modulator or Fenestrated stent graft? A Technical Comparison
- How long does an aortic stent graft last?
- Multilayer Flow Modulator (MFM): How It Works and Why It Matters
Important Disclaimer
This content is educational and technical in nature and must not be interpreted as medical advice or as a promise of any clinical outcome. Individual results depend on many factors and can only be evaluated by a treating physician. Figures attributed to INVAMED reflect manufacturer or published data and are not a guarantee of results. All INVAMED devices are to be used by trained clinicians per the approved IFU, and availability is subject to local regulatory status.
Reviewed by the INVAMED Medical Affairs team. Content is educational and technical in nature.