Steerable Endovascular Stapling for Vessel Wall Apposition

The patent introduces a stapling mechanism as an intermediary attachment method between the prosthesis and native vessel. Instead of using barbs or hooks that directly penetrate and damage the vessel wall, the stapler deploys staples through the prosthesis into the vessel wall, creating a secure mechanical bond without the need for penetrating barbs or hooks. This intermediary stapling process resolves the contradiction by providing secure attachment while minimizing direct mechanical damage to the vessel.

The patent employs a dynamic expansion mechanism where the prosthesis transitions from a collapsed state during delivery to an expanded state at the implantation site. The delivery system allows the prosthesis to be navigated through tortuous vasculature in a compressed configuration, then dynamically expanded at the target location using balloon inflation or self-expanding mechanisms. This dynamic transformation resolves the contradiction by enabling minimally invasive delivery while achieving proper expansion and sealing in complex vascular geometries.

The patent combines multiple attachment mechanisms into a single integrated system. The prosthesis incorporates both radial expansion force from the stent framework and mechanical anchoring through staples or sutures deployed by the stapling mechanism. This combination merges the simplicity of self-expanding stent attachment with the security of mechanical fastening, resolving the contradiction by achieving both operational ease and attachment reliability simultaneously.