Stents TRIZ Cases

Retraction members remove the delivery sleeve outer segments to expand the prosthesis, eliminating sutures and reducing surgical time.

Elastic metal tube lumens in a knitted stent accumulate drugs to solve film peeling and poor fatigue resistance found in conventional designs.

Apertures with hook and loop attachments align branch extensions to maintain flow while excluding aneurysmal sacs from blood contact.

Opposing helical sections linked by a rigid ring segment stabilize the structure, preventing buckling while maintaining radial strength.

A cam-action mechanism translates rotational motion into linear separation to detach a tracheostomy tube loading catheter.

Selective removal of sacrificial connectors between adjacent bands creates gaps that increase coronary stent flexibility while maintaining structural integrity.

Curved endoscope sheath positions stents for direct visualization, eliminating X-ray fluoroscopy requirements.

Segmented guide wires use magnetic actuation to navigate tortuous vasculature, reducing vessel wall trauma during stent delivery.

A handle assembly with a stabilizing rail prevents torque accumulation during stent graft placement, ensuring accurate positioning within the vessel lumen.

Porous columnar tantalum coating via physical vapor deposition enhances visibility without increasing manufacturing complexity.

A shape memory polymer foam device expands within a vascular anomaly to provide reliable occlusion.

Segmenting the stimulator internally preserves anatomy while avoiding systemic side effects.

A balloon catheter plastically expands stent graft sections to seal host vessel walls.

A valve prosthesis deployment assembly uses a gear-type mechanism to move inner and outer sheaths simultaneously via a thumbwheel control.

Self-expanding mitral prosthesis frame with support arms immobilizes native leaflets for stable transapical implantation.

Expandable mesh stabilizer anchors delivery catheter in vena cava, resolving trade-off between invasiveness and stability during heart valve placement.

Embedded magnetic elements repel to hold the tubular body in an expanded configuration, preventing collapse and kinking while reducing patient discomfort.

A selective circumferential pressure applicator applies non-contiguous mechanical forces to arterial walls to modulate baroreceptor activity.

A dual-region catheter merges expandable and linear thermal segments to create complex ablation patterns with a single device.

A medical balloon uses a slidable constraint to control expansion and maintain precise positioning within a body lumen.

Self-expanding nitinol cages bridge aneurysm necks, enabling safe coil embolization without vessel occlusion or intimal injury.

An adjustable release device adapts guide length via a telescoping handle to position delivery catheters accurately.

Proximal and distal affixation points join the stent and cover to prevent particulate passage into the bloodstream.