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Sutureless Lamination Covering

Our advanced sutureless lamination technology applies fabric and polymer covers to medical implants and devices in one layer, with no sutures, while maintaining good adhesion. The key to this capability is our proprietary adhesion process that improves the bond between metal and polymers. This allows the covering to be laminated onto the stent or scaffold without requiring manual suturing or multiple layers. These coverings can be porous or impermeable, and porosity may vary depending on the medical device’s requirements based on its function, target area, tissue ingrowth, etc. A key benefit of porous covers is that they allow communication between the blood and the blood vessel wall and enable tissue ingrowth to prevent stent migration from the target area. Sutureless lamination ePTFE and fabrics like Dacron feature porous structures and are ideal for covering medical devices such as structural heart devices or stent grafts for blood vessels larger than 10mm.

Resonetics specializes in ePTFE and fabric covering technologies for various medical devices such as stent grafts, heart occluders, heart valves, left atrial appendage devices, etc.

Proprietary Adhesion Process

The key to our industry-leading coating capabilities is our proprietary adhesion process. The first step is surface activation which prepares the metal surface for bonding with a polymeric material. This is followed by an encapsulation coating which encircles the metal surface to form a closed loop or a thin tie layer. This process generates a strong connection between the metal and the encapsulated polymer. Using heat and pressure, the fabric or polymer covering is bonded to the tie layer.

Sutureless Lamination Technology Advantages:

  • Low cover thickness
  • Low crimping profile
  • Low friction forces during delivery
  • Automated and scalable Process
  • Fast manufacturing time

Medical Device Applications

Our Medibrane sutureless lamination process is a groundbreaking technology used in many different medical device applications, including:

  • Heart valves
  • Stent grafts
  • Heart occluders
  • Abdominal aortic aneurysm devices
  • Left atrial appendage implants
  • Acute heart failure device
Knowledge Center
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