Stents TRIZ Cases

See how chemical crosslinking of electrospun fibres preserves nonwoven structure while preventi

See how a single-filament woven stent with longitudinal reinforcement minimizes foreshortening,

See how a two-stage braiding method with hooked apices creates a self-securing perimeter that e

See how crimping fibrillated polymeric stents at glass transition temperature with controlled h

See how plasma deposition forms a continuous antithrombogenic coating on stents without webbing

See how alternating plain and satin weave regions in woven vascular grafts combine low permeabi

See how melting biodegradable polymer or wax fixes a porous structure to an expandable stent, p

Laser-welded nickel-titanium coupling structures secure stent strand ends, maintain alignment, and support stable self-expansion.

See how bundled fibers with elastic resin coating narrow under needle force and self-restore, i

See how pre-crimped thermoplastic fibers in pleated woven fabric enable stable three-dimensiona

See how controlled twist coefficients and superfine multifilament yarns enable thin stent graft

See how controlled pleat height (2-10× yarn diameter) and thermoplastic fiber composition stabi

See how laser ablation removes selected fibers during electrospinning to create anisotropic pat

See how laser-welded coupling structures secure nickel-titanium strand ends in stents, improvin

See how chemical surface modification crosslinks electrospun nanofibers to prevent tensile stre

See how laser-welded coupling structures secure nickel-titanium strand ends in stents and occlu

See how coupling structures welded to nickel-titanium strand ends create separate welded region

See how intermediary coupling structures with laser welding secure nickel-titanium strand ends,

See how laser-welded coupling structures join nickel-titanium strand ends in self-expanding ste

See how laser-welded coupling structures secure nickel-titanium stent strand ends through separ

Laser-welded coupling structures align nickel-titanium stent strand ends to create consistent welded regions that hold shape under compression.

Laser-welded coupling structures join aligned nickel-titanium strand ends, improving stent integrity and reliable insertion and expansion.

Laser-welded coupling structures secure aligned NiTi stent strand ends, preserving flexibility and integrity during insertion and expansion.

Laser-welded coupling structures secure aligned NiTi strand ends, improving stent deployment integrity and expansion consistency.

Laser-welded coupling structures secure aligned NiTi strand ends, preserving stent integrity and consistent self-expansion during insertion.

Laser-welded nickel-titanium coupling structures secure aligned stent strand ends, improving bonding consistency and self-expansion.

A laser-welded coupling structure secures aligned NiTi stent strand ends, preserving deployment integrity and stable self-expansion.

Integrated nitinol and textile strands create a low-porosity stent graft fabric that cuts bulk, separation risk, and fluid leakage.

A flexible implanted sensor array maps brain electrical activity with high spatial precision while minimizing tissue disruption during intervention.

Independent electric drive units on each axle cut drivetrain weight and complexity while enabling flexible heavy offroad truck chassis layouts.

An integrated antenna coil and sensor on a prosthetic heart valve enable wireless outpatient monitoring for earlier detection of valve malfunction.

A flexible implantable IC platform uses distributed sensor arrays and a compliant support frame to map brain activity with less tissue disruption.

Segmented movable blades crimp prosthetic heart valves into delivery systems while keeping the loading setup compact, portable, and sterile.

Friction-generated signals from triboelectric film sleeves inside a vascular stent enable timely vasospasm monitoring without complex sensing hardware.

A snapping semicircular lattice combines conductive electrodes and a dielectric skeleton to sense force and harvest kinetic energy.

Movable radial blades compress prosthetic heart valves into delivery capsules while keeping the crimping setup compact, portable, and sterile.

A copper-transition metal adhesion layer stays conformal during reflow, preventing voids and electrical opens in fine-pitch interconnect fill.

A copper-transition metal adhesion layer stays conformal during reflow, preventing voids and incomplete copper fill in fine-pitch interconnects.

A membrane-filtered optical chamber with a quantum cascade laser enables reagent-free glucose monitoring with lower contamination risk and longer implant life.

A flexible implantable electrode platform conforms to brain surfaces to map and stimulate deep neural activity with less tissue damage.

Low-power electromagnetic coupling monitors stent resonance to detect restenosis and fractures without invasive imaging or ionizing radiation.

A sealed plasma process rebuilds a pure oxide layer to improve corrosion resistance and keep bioactive coatings uniform and reliable.

A catheter-based delivery system deploys and orients an implantable sensing construct to monitor aneurysm sac pressure after graft implantation.

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

Convex hard-material bearing elements guide tubes with low friction and wear, improving laser cutting accuracy while reducing unusable tube length.

A compressible mesh stent spring expands inside a damaged pipe to form a watertight seal without shutdown or major excavation.

A flexible joint between braided permeable shells helps an intrasaccular implant navigate tortuous vessels and block aneurysm blood flow.

Pressed and interlocked distal pins keep a thrombectomy mesh aligned during crimping, reducing distortion, friction, and catheter snagging.

An expandable mesh stent with an elastic wire and seal repairs pipe cracks from inside the pipe, reducing shutdowns and excavation.

A smooth inner lining and controlled-porosity conical inlet guard help block cardiac structures while maintaining blood flow and reducing hemolysis.

Surface grooves on a degradable stent improve drug distribution and adhesion while preserving mechanical strength during expansion and degradation.

Segmented inlet openings, a smooth inner lining, and a protective braid improve blood flow while limiting tissue ingress and hemolysis.

A compressible collet with tapered ledges and a rotatable knob streamlines prosthetic valve crimping onto delivery catheters with fewer tools.

A hydraulically expanded mesh stent restores collapsed pipe sections without overlap, preserving flow and protecting relining layers.

Novel two-over and one-under braid patterns preserve delivery column strength while improving deployed softness and reducing vessel friction.

A compressed stent and release probe seal pipe cracks from inside the line, avoiding excavation and helping maintain service continuity.

Flattened and interlocking distal pins hold a tubular thrombectomy mesh in position, preventing jamming and distortion during catheter insertion.

Cold-formed radiopaque rivets lock markers into thin scaffold struts, resisting dislodgement during crimping and balloon expansion.

Synchronized jaws and a gear-driven iris opening enable uniform multi-stage THV crimping while limiting stress and over-crimping.

Synchronized jaws, gears, and adjustable stops uniformly crimp THVs onto balloon catheters while limiting stress, dislodgment, and over-crimping.

A crimping loop, collet, and rotatable knob compress a prosthetic valve directly on the delivery catheter, cutting pre-crimping steps and tools.

A 3D-printed aortic template guides precise stent graft fenestrations, cutting manual measurement time and branch vessel alignment errors.

A hybrid cell-and-bridge stent pattern improves bending flexibility in tightly curved vessels while preserving radial strength and lowering manufacturing cost.

Nonconventional braid patterns and marker filaments improve catheter pushability, softness, and vessel conformability with lower delivery friction.

Patterned recesses formed in a hardened implant engagement member keep stent delivery secure while enabling immediate decoupling after expansion.

Surface drug-loading grooves improve adhesion and release uniformity in degradable stents while preserving supporting force and lowering fracture risk.

Patient-specific 3D printed templates guide stent graft fenestration to match branch vessels, cutting planning time and placement errors.

Tensile and torsional loading after warm extrusion creates mixed grain orientation in magnesium scaffold tubes, improving dilatability and crack resistance.

Pulse-bundle laser ablation cuts biodegradable magnesium stent preforms faster while reducing shielding effects and preserving surface quality.

Pressed recesses and post-hardening let the engagement member grip a stent during delivery, then release cleanly without sticking.

Cold-formed rivet markers and swaged strut holes improve radiopaque marker retention during scaffold crimping and balloon expansion.

A smooth inner lining, shaped outlet tube, and anchored protective braid improve blood flow while reducing hemolysis and entry damage.

Layered beam-melted porous tubes create implants that flex into irregular bone spaces while retaining strength and supporting bone ingrowth.

A variable-density stent with a configurable distal tip improves vessel access while retaining emboli against antegrade blood flow.

Graduated pump-tube porosity improves ventricular blood inflow while blocking structural intrusion that can damage the impeller and raise hemolysis risk.

Surface-treated lining, mandrel heating, and external pressure create a smooth impeller housing that reduces hemolysis and shaft damage.

Heated needle lattices create fused openings in graft textiles, improving tissue integration while limiting endoleaks and stent-graft migration.

Convex steel or ceramic bearing elements guide the tube with lower friction and wear, improving laser-cut positioning and reducing unusable tube length.

A probe-carried compressed stent is navigated inside the pipe and released to expand at the break, sealing leaks without shutdown or excavation.

A double-walled fixed-length stent enables catheter delivery and controlled vessel narrowing while reducing migration risk in pulmonary artery banding.

A guidewire-threaded balloon catheter and stent release tube enable single-insertion stent delivery and dilation, cutting exchanges and procedure time.

An expandable frame lets a valved conduit increase diameter as patients grow, supporting secondary valve placement without reoperation.

Independent inner and outer sheath retraction cuts friction and shear stress, improving self-expanding stent placement accuracy.

Flexible anchoring arms and an annular sealing structure help a recapturable mitral prosthetic conform to D-shaped anatomy and limit backflow.

A shape-memory interatrial shunt uses superelastic and malleable regions to reversibly adjust passageway area in vivo while reducing fatigue risk.

Radiopaque filaments outline device contours under fluoroscopy, improving lumen placement and orientation without full-device marker complexity.

An undulating ring expander with struts and prongs conforms to the prostatic urethra to limit migration, encrustation, and pain.

An elastomer-encapsulated textile skirt expands with the valve frame to limit perivalvular leakage and prevent leaflet abrasion.

A leaflet-clipping anchor and expandable frame enable precise transcatheter valve placement while reducing vessel trauma and leakage risk.

Interlocked multipart retention bumpers hold a crimped prosthetic heart valve in axial position during balloon delivery, reducing migration and deployment errors.

Mid-crowns between outer crowns help a thin-profile continuous wire stent maintain radial strength, limit strut lift, and still expand effectively.

An inner pinching member and outer scaffold improve clot grip, restore downstream flow, and reduce vessel trauma and fragment escape.

A thin-walled expandable body seals aneurysms or vessel segments quickly, avoiding coil migration, balloon deflation, and recanalization.

Thin polymeric webs fold within the stent wall during compaction, preserving radial force while reducing lumen protrusion and flow disruption.

Partial stent crimping over multiple catheters improves bifurcation placement, preserves daughter vessel access, and supports localized drug delivery.

Longitudinal fiber reinforcement helps invasive medical balloons hold shape at high pressure while improving puncture and tear resistance.

A fine adjustment mechanism and outer stability shaft improve transcatheter valve positioning by countering friction-driven movement during deployment.

A compressible split-tube and loop-wire coupling enables fast, reliable embolic coil release in delicate cranial vessels with less trauma.

Pre-tensioned sutures and a locking valve support reduce handling errors and speed heart valve attachment to the delivery system.

Retrograde carotid flow through a shunt protects the brain from emboli while simplifying balloon angioplasty and stent delivery.

A narrowed central bore with frustoconical transitions restores intracranial flow while limiting plaque displacement and supporting angiogenesis.

Curved strut ends keep the ductus arteriosus open while low-contact strut bodies limit tissue incorporation for easier retrieval.

A shape-changing holder and release structure restrain axial valve movement during transcatheter implantation to prevent dislodgement in a beating heart.

Variable-diameter graft sections, fenestrations, and bridging tunnels improve aortic root sealing and coronary alignment in endovascular Bentall repair.

A collapsible annular frame clips native leaflets at commissures to reduce annulus diameter and stabilize prosthetic valve anchoring.

Extendable catheter guides contact the native annulus to confirm prosthetic valve position while keeping a low-profile delivery path.

A radially expandable membrane graft engages the vessel wall to occlude aneurysms, maintain blood flow, and reduce reocclusion.

Laser-melted Ni-Ti powder builds patient-specific implants with controlled transformation temperature, less waste, and removable supports.

Integrated optic fiber sensors track pressure, expansion diameter, and radial force during prosthetic heart valve implantation.

Selective mesh traps in an expandable vena cava frame capture procedure debris while limiting blood flow obstruction and lung embolic risk.

Distinct positioning and support segments help an iliac vein stent improve release accuracy, maintain venous flow, and reduce in-stent thrombosis.

Radiopaque expandable RVOT conduits use balloon-driven growth and durable valve design to reduce repeat pediatric replacement surgeries.

A one-step chemical polishing process removes internal defects and residues to deliver smooth, uniform, biosafe medical device surfaces.

Semi-automatic outer, middle, and inner sheath control reduces manual catheter handling difficulty and shortens surgeon learning curves.

A woven braid anchor expands into double-walled flanges to secure tissue layers, limit leakage, and reduce necrosis during endoscopic placement.

Pleated porous-polymer balloon covers improve stent-graft deployment uniformity while lowering inflation pressure during implant placement.

A dual-catheter approach aligns a side branch stent through a main stent side hole to preserve bifurcation access and reduce restenosis.

A spring-tube unlocking structure pulls proximally to expose the hanging ear-head connection and enable reliable heart valve stent release.

Variable-thickness bands around graft fenestrations improve vessel wall apposition, helping prevent endoleaks during branch artery reconstruction.

Intersecting 3D coil loops enable longer embolic coils with stable aneurysm packing, better wall apposition, and lower migration risk.

A cuffed endovascular graft uses branch-vessel alignment and staged expansion to improve aortic arch sealing while reducing endoleaks and migration.

Disengageable motors and manual screw drive backup keep implant delivery and retrieval operable when power or motor failure occurs.

Selective coating on outward braided wire segments enables drug delivery while preserving pivoting, flexibility, and stent durability.

A collapsible tapered compressor loads endovascular devices into delivery sheaths at the point of care, avoiding storage-related stress relaxation.

A malleable applicator tip and self-expanding nitinol stent improve placement in varied Eustachian tube anatomy for lasting ventilation.