This is a technical overview of an INVAMED device within the aortic aneurysm & dissection repair portfolio. Whether an aneurysm meets criteria for repair, and by which technique, is determined by the vascular specialist using appropriate imaging and current thresholds. 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 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.
Atlas Aortic Nitinol Stent: Overview
Bare-metal self-expanding nitinol aortic stent for aortic pathology where uncovered scaffolding is required (e.g., dissection-related applications).
Technical Specifications
Specifications per INVAMED product documentation; confirm current details in the official IFU.
| Attribute | Detail |
|---|---|
| Specification | Self-expanding nitinol construction |
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. An endoleak is persistent blood flow into the aneurysm sac after endovascular repair, and it is the reason lifelong imaging surveillance is standard. 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.
- Lifelong imaging surveillance is a standard requirement after endovascular repair to detect endoleak or migration.
- Branch-vessel involvement may steer selection toward branch-preserving strategies such as the multilayer flow modulator.
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.
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
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
INVAMED's Atlas Endovascular Stent Graft and Atlas Aortic Stent Graft are positioned for this sac-exclusion role in the abdominal aorta. 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. All INVAMED aortic devices are intended for use by trained vascular specialists under imaging guidance and per the IFU. The decision to pursue a branch-preserving device rather than a covered graft rests with the treating clinician. INVAMED provides diameter and length options across its Atlas aortic grafts to accommodate a range of neck and landing-zone dimensions. Landing-zone length and proximity to arch branch vessels are key planning factors evaluated by the operator. Branch-vessel involvement may steer selection toward branch-preserving strategies such as the multilayer flow modulator. Where a bare stent fits into a given repair is a technical decision made by the vascular specialist.
Related on INVAMED
- Aortic Aneurysm & Dissection Repair — product category
- STENA Aortic Multi-Layer Flow Modulator (MFM): Features, Specifications and Clinical Role
- Sourcing Aortic Aneurysm & Dissection Repair Devices: A Manufacturer and Procurement Guide
- Covered stent graft or Bare multilayer stent? 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.