Stents TRIZ Cases

Connecting first braid ends into second braid ends prevents loose wire detachment and maintains radial force stability during deployment.

An implantable anchor surrounds the device housing while maintaining spatial distance from the antenna.

A pre-crimped stent mounted on an inflatable means features a membrane with a centrally positioned opening to restrict pulmonary blood flow.

A stent delivery system uses a super-elastic beads component to facilitate precise deployment and retrieval of flow diversion devices.

A hand-held unit uses a nested transmission element to move a release element for precise stent positioning.

A stent made from a noble metal alloy with high density and strength reduces wall thickness while maintaining mechanical integrity and radiopacity.

Dual sealing rings on a sutureless prosthetic heart valve prevent paravalvular leakage and migration in patients with resected leaflets.

Flared venturi tubes create low-pressure zones that draw blood from renal veins, reducing congestion while maintaining central venous stability.

A braided stent coating method applies composition through axial translation and rotation while varying device diameter and twist for uniform coverage.

Leaflet clips capture stiffened native leaflets to prevent flow obstruction and maintain effective orifice area.

A flarable delivery capsule transitions between normal and expanded states to manage radial forces during stented valve deployment.

Auxiliary expander transitions stent to less than fully expanded state, enabling passage through seven French sheaths.

A polymer coating mediates contact between metal struts and tissue, reducing inflammation while preserving mechanical strength.

Shell structures with neck apertures maintain blood flow during valve procedures while resisting tear and puncture.

Segmented collars with restraining bores hold trigger wires to control device expansion and prevent uncontrolled spring-out during deployment.

Positioning stent connecting parts on minimum-layered balloon sections reduces the overall outer diameter, enabling insertion into narrow lumens.

Variable sealing collars adjust circumference to prevent graft leakage.

A preloaded guide wire traverses a prosthesis fenestration, reducing procedural complexity and minimizing entanglement risks.

Inflatable balloon fractures previously implanted prosthetic heart valve to enable replacement transcatheter valve implantation.

Segmented stent sections reduce crimping strains on pericardium leaflets, enabling reliable anchoring over the aortic annulus through smaller incisions.

A shape sensing hub tracks guidewire position and rotation using optical fibers to register anatomical images.

A medical stent lattice presses into a substrate to reproduce contours before applying a sacrificial coating layer.

An expandable second layer on the scaffold creates an open tip, allowing deep catheter insertion while maintaining structural integrity.

A motorized stent introducer uses nested lumens and constraining members to position an esophageal stent.

Expandable membrane catheter integrates temperature sensors and electrodes to measure internal chamber conditions for real-time contact detection.

Staggered key-hole bends prevent abutment during compression, reducing stress concentration and enabling delivery through narrow vessels.

An independent catheter system positions an atrial shunt to reduce left atrial pressure while resolving insufficient positioning control.

Differentiated fabric weaves in an aortic prosthesis secure anchoring against irregular necks without obstructing renal arteries.

Internal lumens in hollow struts replace polymer coatings to increase drug loading capacity while enabling precise control over elution rates.

A tubular braided stent uses distinct proximal and distal cylindrical sections with varying diameters and porosities.

Segmented stent-grafts with dynamic side-branches preserve perfusion while excluding aneurysms in complex vascular geometries.

A tapered delivery device uses pusher bands to sequentially deploy intraluminal implants within vessels.

Segmented stent modules with varying radial stiffness resist compressive loads while accommodating anatomical curvature.

Hinged elongate elements deploy arms to engage the vessel wall, preventing stent graft migration under blood flow forces.

An expandable tube with a reversible frame elongates during radial contraction to navigate tortuous vessels.

A hybrid stent combines a superelastic wire core with malleable cannula segments to achieve balanced mechanical performance.

A tapered medical device anchors in adjacent passages to divert fluid flow through an intermediate graft section.

An adjustable balloon catheter system creates a localized chamber to deliver therapeutic agents directly into target tissues.

Intraluminal platinol bridges with dacron fibers induce thrombosis in arteries and veins, enabling tumor ischemia and hemorrhage control.

Compliant stent layer compresses against vessel walls to minimize plaque dislodgement while maintaining blood flow.

Variable thickness cuffs and expanding microspheres minimize perivalvular leakage while maintaining low crimp profiles.

Integrated retractable anchors prevent prosthesis migration by protruding radially as the frame expands, resolving stability versus complexity trade-offs.

Outer elongate hollow member collapses longitudinally to expose an expandable prosthesis via sliding inner retention assembly.

Hydrogel coatings on endovascular stents prevent aneurysm recurrence by sealing vessel gaps while minimizing thrombus formation risks.

A stent graft with low profile side arms and a paraplegia prevention vent tube provides temporary perfusion to external vessels.

A semi-permeable membrane at the catheter tip filters cerebrospinal fluid while blocking tissue and proteins.

A loading device uses a pincher mechanism to fold bushing flanges axially for insertion into flexible walls.

Polymer-filled through holes in a bioabsorbable stent reduce damage during crimping and expansion, eliminating the need for in vivo heating.

An inverted prosthetic heart valve frame collapses into a delivery sheath lumen, reducing catheter profile and eliminating extra-corporeal circulation.

A motorless intralumenal device uses a turbine to drive an impeller via a driveshaft, enhancing fluid flow within bodily conduits.