Stents TRIZ Cases

Auxetic knit fabric structures achieve negative Poisson's ratio through specific yarn angles and warp knitting techniques.

Struts with higher bending strength than loop stents prevent uneven deformation, ensuring stable adherence to curved blood vessel walls.

A segmented implantable device reduces right ventricle workload by absorbing pulsatile pressure via a self-regulating fluid reservoir mechanism.

A bifurcated stent vascular access assembly creates an artificial blood flow pathway using nitinol and PTFE conduits.

A detection circuit monitors electrical resistance changes in a tether to confirm implant release from a delivery catheter.

Self-expanding implant uses magnetic hysteresis heating to ablate vessel walls without physical contact.

A hub system splits fluid flow to flush multiple lumens simultaneously.

Optical heating changes phase change material stiffness in a single guide wire, reducing procedural steps and patient exposure during FEVAR procedures.

Solution electrowriting controls fiber diameter and alignment to resolve structural precision limits in vascular graft fabrication.

A helical shaft engages stent markers to control axial release through rotational motion.

Spring-biased metallic stents with stabilization prongs prevent migration in stenosed vessels by engaging native tissue for secure anchoring.

Segmented tubular aortic component with wall aperture and tunnel graft allows approximate placement to avoid vessel occlusion during aneurysm treatment.

Anchors with integrated seal panels prevent blood leakage and dislodgement during minimally invasive mitral valve replacement.

Expandable biodegradable anchors on an ECM vascular prosthesis reduce intimal hyperplasia while promoting neovascularization and site-specific tissue growth.

Fluid-permeable stent body with impermeable berms extends the landing zone for abdominal aortic aneurysms.

An access system uses erectable isolation barriers and a bypass channel to maintain blood flow during vascular wall procedures.

Controlling particle size relative to wall thickness improves plastic deformation capacity, preventing abnormal fracture during stent expansion.

A tissue-coupled template applies radial forces to reshape the annulus, reducing regurgitation and migration in minimally invasive repair.

A dilatation tester uses a rotating bearing assembly to cyclically compress a stent-graft prosthesis for fatigue analysis.

A zinc alloy stent uses magnesium and selenium to provide mechanical support for blood vessels.

A steerable sheath and ball joint mechanism guide an implant through a catheter, reducing surgical invasiveness while maintaining treatment effectiveness.

Flexible thin-film circuits conform to irregular arterial walls, resolving the trade-off between structural stability and measurement precision.

Flexible cannula design minimizes patient trauma during stent placement while reusable handle enables precise removal using specialized hooks.

A self-powered infusion kit delivers medication via mechanical force applicators without external power sources.

Hydrogel strips on a delivery balloon expand radially to secure a segmented stent, preventing microsliding in vessels with varying cross-sections.

Thumbwheel holding mechanism with wedge pin manages tension in retractable sheath for vascular stent deployment.

A vascular implant features distinct areas of varying radial stiffness, transitioning from a rigid proximal section to a flexible distal section.

Nested sleeve members enable controlled deployment of heart valve stents, reducing positioning errors during minimally invasive transarterial implantation.

Differentiating abluminal and luminal surface energies eliminates polymer matrices, reducing thrombosis risk while retaining bioactive agents.

A side-delivered transcatheter prosthetic valve uses a tubular frame and flow control component to regulate blood direction.

Differential degradation rates between connectors and rings allow the filter to relax against the vessel wall, preventing long-term unintended consequences.

Segmenting obstacle detection from marker extraction prevents misidentification during coronary interventions, ensuring accurate stent positioning.

Integrated catheter delivers self-expanding stents while deploying an internal filter for embolic protection.

A bifurcated side-access intravascular stent graft provides a fluid-tight seal through an external graft channel.

Segmented annular stent bodies with specific bent portions compress radially to navigate small vessels while maintaining radial strength.

A two-step delivery system positions a self-expanding frame before connecting a prosthetic mitral valve via snap-in or zip tie mechanisms.

Matching oval cross-sections lock the sheath and carrier element, preventing relative rotation that twists medical devices during deployment.

A resistive memory write verify circuit applies a dynamic bit line voltage ramp to accelerate cell programming.

Embedding a braided tube within the scaffold wall prevents collapse under radial pressure, resolving kinking issues in synthetic tubular constructs.

A hand-operated cam and lever mechanism pulls a tensile member to control vascular implant release.

An elastic member draws mesh ends together to increase local density, ensuring consistent blood flow reduction regardless of physician skill.

A nested stent design uses a silicone film to prevent migration while allowing easy removal from curved lumens.

An oligomeric binder degrades within six weeks, eliminating residual polymer inflammation and late stent thrombosis risks.

A delivery device uses positioning members on an inner core tube to axially interfere with stent corrugated rings.

Bulbous stent geometry redistributes polymer to boost radial strength and drug delivery while maintaining vascular wall integration.

A spatial dimension determination device calculates real target element sizes from magnified x-ray images using movement parameters.

A vascular graft combines a crimped polymeric textile structure with an open pitched metal coil to increase thrombogenic surface area.

Segmented distal petals on a delivery wire minimize frictional resistance against catheter lumens while maintaining implant protection during deployment.

Hollow elastic frame supports vaginal dome and pelvic floor, reducing dislodgment risk.