Occulders TRIZ Cases

A nitinol occlusion plug expands from a straightened delivery state into a spiraling shape.

A helically wound medical implant connects to an insertion aid using a movable locking wire that engages proximal and distal loops.

An atrial septal defect occluder uses an openable choke film to seal defects while allowing interventional device passage.

Flexible single strand material fills the left atrial appendage interior with an intermingled array, preventing blood clot migration without rigid attachment.

Segmented delivery wires combine structural integrity with electrolytic corrosion to resolve severance speed versus connection stability trade-offs.

A hinged cap constrains frame legs to prevent tangling, enabling reliable device recapture without damage.

A mechanical seal creates a liquid-tight barrier between the delivery catheter and guide catheter to prevent fluid leakage during implantable device deployment.

Nesting a helical stretch resistant fiber inside the embolic coil prevents axial stretching and shape loss during retrieval while preserving flexibility.

Balloon expansion adjusts the cinching member diameter to seal anatomical irregularities, preventing leaks and reducing thrombi risk.

Segmenting the closure device into anatomically matched anchor and disc elements prevents incomplete occlusion caused by patient-specific variations.

Segmented expandable members adjust spacing between collars to fill the entire lumen cross-section, preventing retropulsion of surgical debris.

Segmented thoracic pathways and dynamic retention structures restore catheter maneuverability while preventing inadvertent sheath removal.

A mechanical interlocking mechanism secures an embolic coil to a pusher member via an engagement member and detachment aperture.

Segmented jaws with local teeth grip fragile implants without damage, resolving the trade-off between secure holding and structural simplicity.

Reducing coil tension prevents helical reformation, enabling accurate deployment and effective occlusion without requiring multiple devices.

A catheter locking mechanism provides a friction fit to hold an embolic coil introducer wire secure relative to the catheter lumen.

A medical instrument uses a control wire to actuate clamp arms and release the sheath connection.

A left atrial appendage occlusion device uses a self-expanding stent and double-disc occluder for precise placement.

Segmented delivery sheath enables precise occlusive implant deployment and recapture via enlarged garage region.

A securement wire stabilization mechanism uses an intentional friction zone to prevent shifting during intravascular device delivery.

Symmetrical closure device employs inner and outer reverse bends to anchor septal tissue, removing braided-web discs that obstruct future procedural navigation.

A nested resilient stent anchors a flexible mesh within an aneurysm sack, preventing embolic prolapse into the parent vessel while ensuring effective occlusion.

An electrolytically corrodible conduit separates from a deployed braid, enabling immediate occlusion of wide-necked aneurysms without antiplatelet therapy.

An expandable member temporarily seals a vessel puncture from within while sealing material closes it from outside, ensuring complete closure.

Conformable membrane on a nitinol frame creates a uniform surface that prevents blood stagnation and thrombus formation in the atrial appendage.

Segmented engagement and detachment members secure stretch resistant embolic coils, enabling precise placement in tortuous vasculature without coil deformation.

Segmented occlusion coils undulate to create independent deflection regions, reducing energy buildup and preventing catheter kick-out during aneurysm treatment.

A flexible embolization scaffold conforms to complex aneurysm shapes using integrated struts and coils.

Tubular member expands to treat target sites while a tether and engagement member secure the structure in place.

A reinforced membrane partitioning device isolates ruptured heart tissue to restore normal cardiac pumping function.

Segmenting the plug from its adhesive flange eliminates bulkiness while maintaining reliable attachment for infant umbilical shaping.

A stretch resistant fiber runs through an embolic coil to secure the proximal connection point.

A portal vein blood flow reducer creates controlled stenosis to induce liver regeneration.

Segmented bristles anchor the device and induce thrombosis, preventing coil migration and recanalization.

Foldable web elements collapse the head plate radially, resolving the contradiction between anatomical adaptation and small surgical opening size.

Coiled extensions on a closure device reduce implanted material volume while maintaining sealing function for patent foramen ovale repair.

A left atrial appendage occluder uses a sealing part with greater radial or axial deformation capacity than the fixing part for optimal fitting.

Shape memory polymer foam expands within a vein to achieve complete occlusion while a metal backbone anchors the device in place.

Stabilized biological tissue on a self-expanding frame improves biocompatibility and reduces thrombus formation risk.

A spring-driven occlusion clip uses interior camming surfaces to pivot runners and constrict the left atrial appendage.

Space filling elements promote thrombus formation to prevent migration, resolving reliability risks from blood pooling.

Variable braid angles create flexible proximal and stable distal ends, resolving repositionability versus occlusion reliability.

A vaso-occlusive device delivery assembly uses a conductive sacrificial link that thermally disintegrates to release the implant.

A split-distal end expands to form an interference fit with an embolic coil, enabling secure delivery and recapture to prevent migration.

A self-expanding occlusion device uses a compliant balloon to shape its endoskeleton for left atrial appendage closure.

A woven mesh atrial appendage occluder uses a head-end control fiber to enter a semi-release state for precise anatomical positioning.

An endoscopic clip made from non-magnetic materials prevents magnetic field reactions and vibration during MRI procedures.

A curved biocompatible graft occludes fistula tracts via a tapered trumpet-like head and thin tail structure.

A self-expanding tubular vascular plug uses a coiled shape memory element to twist into a helical configuration upon deployment.

Spacer elements separate two membrane-covered stents to create a stagnation chamber that reduces recanalization risk.