Occulders TRIZ Cases

A left atrial appendage closure device anchors in the pericardial space to prevent migration.

A self-adaptive embolic coil system uses a shape-memory alloy and gripper assembly to deploy, reconnect, and disconnect the device.

An elastic loop wire secures an implant to a delivery system by applying tension to the pull wire.

Galvanic corrosion of the junction detaches the implant, eliminating vessel damage and thrombi caused by external energy sources.

A photo-sensitive liquid embolic material hardens in situ via light-controlled photopolymerization to fill irregular vascular cavities.

A shifting central hub within an expandable framework conforms to varying left atrial appendage geometries while maintaining constant height and radial force.

Multi-loop self-expanding frame anchors in vessels to prevent migration during single-deployment occlusion.

Nested collars and radial struts enable rapid occlusion, eliminating the time required for embolus formation in coil-based treatments.

One-way valve in bioprosthetic cover allows blood flow into the left atrial appendage for stretch obliteration, eliminating residual leaks.

A medical occlusion device features a planar hub component that minimizes protrusion into the left atrial chamber.

Segmented hub and cylindrical portions resist kickback forces while achieving effective single-deployment vessel blockage.

A micro-coil assembly uses a dedicated tie cutting unit to sever the connection between the coil and pusher wire.

Elastic connectors apply tension to close clamping beams, adapting to varying anatomical dimensions without complex actuation mechanisms.

Segmenting the rotation and translation mechanisms with a dedicated locking component prevents accidental occluder release at incorrect anatomical positions.

Expandable elongation-preventing wire disperses radial forces, reducing stress concentration and preventing breakage during delivery.

Radial expansion of a braided occlusion device seals transapical access openings, eliminating suture-based myocardial tearing and bleeding.

Segmented mesh and nested embolics conform to irregular sac contours while preventing protrusion into the parent vessel.

Segmented flexible legs expand to lock an occlusive implant, resolving the trade-off between operator-controlled release and mechanical detachment complexity.

A medical delivery system positions an occluder portion independently from its anchor segment within the left atrial appendage.

Dual-layer braided implants resolve incomplete neck occlusion by constricting at the pinched end to resist compaction and prevent recanalization.

A containment member expands via shape memory wire to seal the left atrial appendage.

Electrical heating expands a nitinol wire to release an endovascular tip, eliminating tensile forces that damage tissue during detachment.

Inflatable seals on a stent graft fixate and seal vessels, reducing complications from invasive surgery.

A left atrial appendage occluder uses a sealing part with greater radial and axial deformation capacity than its fixing part to conform to irregular anatomical openings.

A bioabsorbable filament catheter delivers reduced pressure directly to subcutaneous tissue sites through a permeable filament mass.

Asymmetrical discs and an expandable waist in a self-centering heart occlusion device conform to defects, reducing thrombogenicity.

A thin-film mesh expands radially over a wire structure to form spheroid structures for intrasaccular flow diversion.

Inverted frame sections distribute anchoring forces across multiple contact points to prevent tissue trauma while porous coverings block emboli passage.

A segmented fixation member anchors an occlusive implant to the left atrial appendage wall, reducing thrombi risk by sealing stagnant blood flow.

PHEUU-coated magnesium alloy coils occlude aneurysms and initiate tissue generation, reducing recurrence rates by eliminating permanent foreign body presence.

An elongate member forms a looped assembly with a plug body to fix the device in place, eliminating rectal suturing and reducing patient discomfort.

Porous nonwoven fibers facilitate cell adherence and substance exchange, preventing thrombus formation and vessel clogging during vascular closure.

An integrated occlusive device merges a porous mesh flow diverter with an embolization coil to promote endothelialization at the aneurysm neck.

A biodegradable reinforcement element modulates strut flexural modulus to secure implantation while reducing tissue trauma risk over time.

A braided implant with a retractable dual proximal layer self-expands to conform to aneurysm geometry.

A segmented occluding frame with waist portions allows axial stretching and navigation through curved vessels without a rigid locking member.

Distal-to-proximal loop variation creates a dense, conforming occlusive mass that secures the aneurysm neck and prevents rupture.

Inflation cavities seal the left atrial appendage, removing stagnant blood pools that cause thrombi formation and stroke risk.

Heat-melting the mesh body creates a sealed connector that reduces thrombosis risk while maintaining temporary structural support.

Thermal activation melts the polymer via Joule heating, resolving trade-offs between electrolytic complexity and precise vascular deployment.

Segmented retention members anchor the woven fabric to prevent dislodgement during atrial fibrillation while maintaining effective occlusion.

A detachable embolization coil connector splits via a wire mechanism to reduce compressive forces, enabling precise placement without complex locking systems.

Segmented shape memory material enables delivery through narrow microcatheters, resolving the trade-off between device profile and occlusion specificity.

Segmented neck cover and atraumatic tip resolve migration and wall trauma contradictions during aneurysm occlusion.

An angled nasal plug redirects airflow to alleviate Empty Nose Syndrome symptoms and improve nasal function.

A vascular implant delivery tool uses a tubular distal tip and safety wire to retain the device during advancement.

Preloaded multi-lumen catheters enable sequential coil deployment without reloading, reducing procedural time and complexity.

Thicker membrane regions prevent air gaps during compression, ensuring reliable sealing across diverse airway sizes.

Varying strand diameters in a braided aneurysm implant enable precise folding and occlusion, resolving repositionability challenges.