Stents TRIZ Cases

A temporary stent shrinks under tension for safe removal, preventing restenosis and tissue injury during vascular support.

Radial deformation of extruded polymeric tubes enhances stent toughness, reducing mechanical failure during deployment.

A radiopaque marker on a stent delivery system indicates the proximal landing zone position.

A prosthetic heart valve stent structure features a conical-convex inflow region and linear cylindrical outflow region for secure anchoring.

Long x-ray visible threads fixed to the stent body enable accurate placement in the curved aortic arch while preventing vital artery blockage.

Porous electrospun fabric covers the stent to maintain aneurysm coverage while allowing nutrient flow through irregular pores.

Segmented composite grafts with embedded nitinol mesh resolve compression collapse risks while maintaining tissue integration and enabling catheter replacement.

A vascular intervention motion system incorporates a force reproduction mechanism to detect guidewire resistance during navigation.

A thrombectomy device uses an inflatable balloon to modulate blood flow during clot retrieval.

Biochemical coagulation replaces manual suturing to embed stents in tissue, reducing manufacturing time.

Pre-shaped catheter rests on aortic arch to prevent recoil and displacement, enabling distal vessel access without extensive wire manipulation.

Pre-formed tapered ends ensure uniform crimping to prevent sharp edges that damage vasculature during delivery.

Anodized porous metal oxide structures store drugs while maintaining stent strength and enabling color-coding.

Radiopaque markers on replacement heart valves enable precise fluoroscopic positioning during minimally invasive implantation.

An expandable balloon catheter seals the bile duct lumen to enable targeted fluid dispersion and ultrasound-assisted debris clearance.

A bioresorbable zinc alloy stent expands radially to support medium and large vessels.

A stent-like blood filter unit uses cone-shaped units to engage vessel walls and prevent tilting during deployment.

An inflatable balloon stent maintains luminal patency through dynamic expansion and contraction.

A graft compression system reduces soft tissue tendon diameter using a threaded collet mechanism.

Dual stops constrain actuating element movement to prevent unwanted implant release and coaxial sheath overstroke, maintaining component alignment.

Embedding the pull element end portion inside the flexible sheath material reduces friction forces and device diameter for longer implants.

Fibrin-binding peptide modified heparin localizes anticoagulant action at the graft site, preventing systemic bleeding risks and thromboembolic complications.

Pre-adapted graft surfaces simplify thrombogenic fiber placement for patient-specific endoprosthesis customization.

Suture tethers connect stent hoop apices to induce self-adjusting curvature, mitigating bird-beak gaps and endoleaks in aortic arches.

A stent graft uses sloping stent members with uneven apexes to enhance flexibility and fixation within tubular vessel structures.

An elastic component engages guide rod teeth with a tooth block to lock stent positions, resolving operator instability risks during gradual deployment.

Segmented curling portions nested within a compressed structure expand to increase surface area, reducing incision size and surgical risk.