Occulders TRIZ Cases

Expansile polymeric hydrogels expand within aneurysms to fill lesions, resolving trade-offs between structural strength and biocompatibility.

Segmented connection components accommodate vessel curvature by allowing controlled rotation, preventing excessive twisting that damages the vessel wall.

A left atrial appendage occluder uses staggered connection parts to reduce axial distance and improve sealing efficacy.

Anchoring struts engage vessel walls to prevent coil migration while extracellular matrix material absorbs fluid for effective occlusion.

An oval bioresorbable vascular implant reduces emboli passage area by altering vessel shape, eliminating the need for invasive retrieval procedures.

Segmentation and inversion principles resolve the contradiction between placement reliability and device complexity in embolic coil systems.

A coupler with a shape-memory alloy loop engages an embolic device, resolving cumbersome maneuvering and complex interlocking mechanisms.

Self-expanding barrier prevents coil migration and seals aneurysm necks.

Segmented nitinol anchor and porous cover modulate blood passage to prevent thrombus formation.

Sequential compaction increases density and radial expansion for reliable occlusion without large insertion sheaths.