Stents TRIZ Cases

A double-walled filling structure prevents internal lumen deformation and resists pulsatile pressure creep through a composite elastic-inelastic design.

Rotor-driven tensioning members manage implant expansion while steering mechanisms navigate tortuous anatomical pathways to improve control concordance.

A reconfigurable stent-graft delivery system uses a multi-lumen catheter to stage main vessel deployment and convert to a sheath for branch access.

Opposing support members hold the bile outflow port in a linear shape, preventing duodenal backflow while reducing overall stent length.

Segmented stent fronds bridge bifurcations to cover side branch origins, reducing restenosis risk without compromising main vessel radial strength.

A crimping device uses protruding elements to compress medical devices while protecting internal layers from mechanical damage.

Tactile indicators on the coupling member signal deployment progress through tension changes, reducing reliance on continuous imaging.

Segmented wavy-line annular bodies reduce element gaps during expansion to prevent tissue growth while maintaining axial pliability.

Helically wrapped films with arcuate fibrils slide relative to adjacent fibrils, maintaining flexibility while covering frame elements with diverse geometries.

Flexible mandrels enable precise electrospun fiber matrix deposition to prevent intimal hyperplasia and improve long-term patency.

A vascular remodeling device uses segmented strut sections to anchor within blood vessels and support aneurysm filling materials.

Alternating self-expanding and balloon-expandable wireforms conform to irregular vessel contours, reducing dislodgement risks in aneurysm treatment.

Axial actuator expands anchor against tissue while locking mechanism stabilizes implant during deployment.