Stents TRIZ Cases

A compressible stent spring is delivered through a catheter, then expands to seal pipe breaks internally without shutdown or excavation.

A hybrid closed-open cell stent pattern resists collapse in sharply bent vessels while preserving scaffold strength and radial support.

A rotatable actuator and funnel crimp a self-expandable prosthetic valve while aligning connection features for faster one-person loading.

A spring-expanded seal repairs damaged pipes through existing access points while maintaining fluid flow and avoiding shutdown or street excavation.

Magnetic traction counteracts gravity to keep long tubular implants straight during coating, cutting, and testing, improving uniformity and accuracy.

Sequential, non-uniform crimping reduces prosthetic heart valve delivery profile while protecting leaflets and limiting void spaces.

A looped crimping band compresses mechanically expandable heart valves with localized radial force, improving crimping efficiency and ease of use.

A mesh-pattern outlet valve uses metal wires and thread lassoing to block duodenal backflow while staying durable and catheter-loadable.

Progressive channel compression plus local crimping loads self-expanding stent-valves into multi-sheath catheters without buckling or damage.

Segmented jaws crimp different valve sections to different diameters, protecting the leading edge and easing sheath delivery.

Functionally graded micro-cladding makes stent connectors brittle for easy removal while adding radiopacity during manufacture.

A dual-membrane inflatable stent uses an annular chamber and engaging sections to isolate pipe damage while maintaining flow in high-pressure systems.

Movable pins and a tapered actuator let one mandrel repeatedly form precise stent anti-migration features with better manufacturing consistency.

A segmented diamond-mesh stent varies intersection angles by region to reduce shortening while preserving expansion force and placement accuracy.

A dual-membrane inflatable stent uses connecting members and expandable engaging sections to seal damaged high-pressure pipes with stable support.

Twisted flat braid loops expand from a catheter-delivered shape to anchor inside wide-neck aneurysms and reduce embolic device migration.

Plasma nitriding gives iron lumen stent preforms the hardness, radial strength, and plasticity needed for commercial-scale stent production.

A spring-expanded stent seals damaged pipe walls from inside, repairing leaks without excavation or shutting off water, gas, or oil flow.

Periodic plunger ejection clears molten buildup inside the beam block, improving laser-cut tube accuracy and reducing rejects.

Segmented jaw sets and staged axial crimping shape prosthetic heart valves to protect the leading edge and reduce snagging during delivery.

Pre-cut x-ray markers with inward breaking points and passivation improve handling, radiopacity, and corrosion-safe scaffold bonding.

Dual tapered funnels and an actuator crimp a collapsible heart valve uniformly for precise loading onto a minimally invasive delivery device.

Plasma nitriding on a cold-worked iron stent preform boosts radial strength and corrosion rate while preserving plasticity for scalable production.

A tapered actuation element drives movable pins outward so a stent mandrel can repeatedly form precise anti-migration features for stronger lumen anchoring.

A reciprocating stent-engaging element advances the stent without sheath withdrawal, improving placement control, axial density, and re-sheathing.

Segmented jaws and staged crimping shape prosthetic heart valves to form a protected leading edge and reduce catching during delivery.

Synchronized iris jaws uniformly crimp large transcatheter heart valves to small diameters while limiting stress and over-crimping.

Pre-cut marker webs and passivation enable radiopaque scaffold markers with easier handling and lower galvanic corrosion risk.

A geared spindle sheath drive converts rotation into controlled linear release, reducing catheter shift and enabling accurate vascular implant placement.

A braided one-way bronchial valve blocks inhaled air to diseased lung regions while letting mucus and residual air exit during exhalation.

A tapered actuation element drives outward pins so a stent mandrel can form anti-migration features with accurate, repeatable placement.

Applying tensile or torsional stress during or after extrusion reorients magnesium tube grains, improving scaffold dilatability and delaying cracks.

Protective films between grippers and a pre-crimped drug-coated stent enable precise balloon-catheter repositioning without cross-contamination.

Successive twisted flat braid loops improve wide-neck aneurysm anchoring, limit wall distension, and stay deliverable through tortuous vessels.

Flex connectors let a self-expanding stent twist in either direction, reducing foreshortening and improving deployment in tortuous vessels.

A compressed tubular mesh stent spring is deployed inside a damaged pipe, then self-expands to create a watertight seal with minimal excavation.

Omni-directional spiral thin-film Nitinol mesh helps stents conform to irregular vessels while preserving deployment integrity and supporting local therapy.

Staged heating, expansion, and intermediate cooling shape memory workpieces more gently, reducing damage and springback while preserving precise properties.

A rotatable actuator drives a prosthetic valve through a funnel to speed crimping, sheath loading, and connection-feature alignment.

Successive twisted flat-braid loops anchor inside wide-neck aneurysms to prevent migration without distending the sac.

An expandable mesh stent restores partially collapsed pipe sections without overlap, preserving flow and reducing relining interference.

A polymer-covered self-expanding stent seals post-anastomotic leaks, limits tissue ingrowth, and supports easier removal after healing.

A compressible mesh stent with an elastic wire and seal enables internal pipe repair, cutting excavation, downtime, and leak risk.

Local ablation of the outer ePTFE layer boosts stent graft flexibility while avoiding inner-layer damage and reducing assembly misalignment.