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.