Stents TRIZ Cases

A stent uses suture-connected outer rings to hold the lumen wall securely.

Segmented nitinol radial members anchor flexible leaflets to prevent retrograde blood flow while enabling minimally invasive catheter delivery.

Capturing wires with movable flaps hold and release stented heart valves, enabling repositioning to reduce surgical risks.

A recoverable stent system integrates a retrieval wire and sheath to enable device removal after deployment.

A disposable endoscopic system with an integrated camera and illumination module enables precise stent placement via a dual cannula structure.

Short pulse SHG lasers pattern polylactic acid stents while preserving molecular weight and mechanical strength.

A heater breaks a tether while an electrical circuit measures resistance changes to confirm detachment.

A delivery system uses a fixing anchor with positioning grooves to restrain lumen stent connection parts during deployment.

A slidable anchoring barb secures a medical prosthesis using spot welding and integrated stops.

Segmented balloon structure maintains flexibility during inflation, preventing artery damage from stiffened configurations.

A tube stent delivery system uses overlapping fitting sections to secure the stent to an outer catheter for stable transport.

Electrospun P(LLA-CL) blends with fibrinogen to create hydrophilic stent surfaces.

Barbed sutures anchor endoprosthesis stent hoops to prevent migration in tortuous vessels.

Adhesive tie layer bonds polymer tubes in tube-in-tube parison, preventing delamination during radial expansion.

Suture-connected eyelets on a rigid rod allow minimal cavity insertion, reducing tissue trauma and preventing implant damage during placement.

Alternating web flexibility in a cylindrical mesh generates circumferential offsets that cut into clots, preventing detachment during extraction.

An expandable medical device uses independent control portions to adapt to vessel geometry, preventing coil herniation during endovascular aneurysm treatment.

A branched stent side branch transitions from inside to outside the main lumen using shape memory material.

A delivery wire features a dual function bump member and a pusher bump member for controlled deployment of self-expanding elements.

Scalloped fenestration with zigzag strut element anchors stent graft, resolving branch vessel alignment challenges in complex thoracic aorta anatomy.

Nested inner, middle, and outer tubes enable independent movement to maintain stent position during deployment.

A catheter mechanism compresses and fastens an endoprosthesis using a distal tether system to enable precise repositioning.

Preformed grooves and barbed trapping members anchor native leaflets to prevent displacement.

Skirt flaps act as compliant intermediaries between rigid stents and leaflets, preventing premature failure caused by stress concentration.

Integral bifurcations woven from a single wire prevent structural folding in curved vessels, enabling stable guide wire insertion.

A stent deployment handle uses a wheel and pinion gear to drive a rack, reducing peak force required to retract the sheath while maintaining placement accuracy.

Hollow blow molded balloon shoulders provide compressible structural support for transcatheter delivery devices.

Controlled temperature exposure after sterilization reduces radial strength variation in polymeric stents.

A drug-eluting stent releases AT2 receptor antagonists to strengthen the aorta wall.

Segmented sheath design reduces friction during retraction, preventing device displacement and maintaining structural integrity.

Solid-state drawing increases mechanical strength of biodegradable filaments without thermal degradation or molecular weight loss.

Segmented flared ends on hollow cylindrical stents generate hoop forces that prevent migration and improve sealing within the esophagus.

A combined endoscope and balloon catheter system enables single-handed sinus ostium dilation through integrated instrument control.

A stent assembly uses a trigger wire to constrain the framework in a folded shape for delivery.

Expandable catheter markers determine stent orientation and size, reducing parallax errors that cause improper placement at artery junctions.

Hydrothermal conversion films and polymer coatings delay magnesium alloy stent corrosion while maintaining mechanical integrity.

A stent graft with a paraplegia prevention vent tube provides temporary perfusion to the excluded aortic region.

Segmented windings on a delivery wire enable precise stent placement in tortuous pathways while allowing retraction and repositioning.

Angled sockets in a branched stent graft facilitate secondary prosthesis placement via guide wires.

A screw gear and drive assembly retract a stent graft cover, eliminating complex button mechanisms and reducing device complexity.

A compliant blood vessel graft uses a resilient tubular support to enable radial expansion that mimics healthy arterial compliance.

A split PTFE sheath reduces friction during delivery through tortuous anatomy by enabling smooth stent deployment.

Segmented actuation and clamping mechanisms reduce stent diameter while minimizing operator training and equipment complexity.

A biologic stent transitions from rigid to conformable using a polyampholyte cryoprotectant coating.

A stent-graft release device uses a flexible tightening member to secure the implant without causing permanent deformation.

Removing the primer layer allows thicker drug-loaded coatings that maintain mechanical integrity during stent expansion, preventing delamination.

A stent delivery device uses a ratchet slide and carrier system to enable precise incremental deployment of prostheses.

Segmenting filter legs into primary and secondary groups reduces connecting wire count, enabling a smaller collapsed diameter for catheter insertion.

A stent delivery system advances a sheath distally to deploy the implant from proximal to distal for precise placement.