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.

Overlay intravascular imaging data onto anatomical coronary views to resolve catheter guidance difficulties during PCI procedures.

A medical balloon features exterior voids filled with carbon nanotubes to enhance structural integrity.

A contoured internal limb adapts to aortic geometry using variable cross-sections.

A trifurcated modular stent device delivers immediate perfusion to the brachiocephalic artery via self-expanding legs.

Fluid pressure in a distal chamber retracts the outer sheath, reducing manual force and preventing stent migration during deployment.

Segmenting torque transmission via releasable sleeves resolves incomplete energy transfer, ensuring accurate angular radial orientation of stents.

Laser bonding joins nested balloons to resolve insufficient temperature control and seal integrity in single-balloon atrial fibrillation ablation devices.

A graft system uses a clamp to secure a hemostasis valve, enabling immediate vessel attachment.

A gastrointestinal prosthesis combines an adhesive portion with a porous material layer to secure the device at the treatment site.

A stent delivery system uses openings in the inner shaft to establish fluid connections between lumens for simultaneous rinsing and venting operations.

A non-ferromagnetic alloy aneurysm coil minimizes magnetic susceptibility artifacts in medical imaging.

Segmented stent delivery system enables controlled deployment and repositioning via independent sheath and catheter manipulation.

An expandable occlusion element seals vascular punctures, reducing hematoma risk and procedure time.

Carboxylic acid functionalizes medical device surfaces to anchor bioactive agent layers directly without containment mechanisms.

Passive sensor element modulates oscillating electrical signals via antenna portion, eliminating internal battery size constraints and leakage risks.

Segmented tensioning mechanism adjusts implant diameter independently, resolving thread interference during deployment.

A woven fabric uses composite yarns to create a low-profile implantable device.

Nested L-shaped protrusions on the strut securely hold the opaque member, resolving detachment reliability issues during manufacturing.

Dropping supplemental yarns during weaving creates tapered sections that maintain consistent porosity and fluid-tightness without leakage.

A biodegradable stent incorporates elastic threads along its length to enhance expanding force and facilitate loading into delivery systems.

Segmented inner tube accommodates balloon expansion, preventing axial lengthening and mechanical stress during intraluminal treatment.

A guide extension catheter features a tapered distal portion and an integrated balloon to facilitate deeper insertion.

Pre-stretching the braided structure prevents web formation and lumps, eliminating pore obstruction and reducing thrombosis risk.

Segmented tubular units with varying radial distances prevent disorderly wire arrangement, reducing deployment force by 39%.

Flared proximal ring design increases sealing surface area in the aortic arch without covering subclavian artery origins, enabling secure fixation.

Segmented catheter needles apply dielectric heating to shrink tissue, resolving shape mismatch between stent frames and implantation sites.