Occulders TRIZ Cases

Linearly elongating petals in a tubular occluder conform to septal tissue, resolving anatomical mismatch and residual leak risks in PFO closure.

An occluder support uses an inwardly folded trailing structure to increase contact area and protect tissue.

Expandable biocompatible plug material anchors to vessel walls via hydrogel expansion, resolving migration issues inherent in traditional embolization coils.

Geometric mismatch between the pusher arm and bulbous element enables reliable coil detachment without complex mechanisms.

Supplemental spot welds join the securement wire to the catheter lumen wall, preventing unintended detachment during deployment forces.

Cantilevered arms create a haemostatic valve enabling precise therapeutic delivery while preventing reflux and non-target embolization.

Segmenting the aorta with a porous deflector covers carotid ostia to redirect debris, resolving trade-offs between cerebral protection and catheter access.

Segmented conical elements and dual retrieval points resolve tilting risks while preserving blood flow through an open central passageway.

A medical system applies electrical charge to vascular implants in blood reservoirs to deposit fibrin on implant surfaces.

A gel filler delivery device injects a base gel into a body lumen bulge to achieve effective occlusion.

Segmentation and dimensionality changes allow the filter to capture debris while the tether isolates deflection forces from treatment devices.

A closure implant uses a tension element to retract into a catheter lumen, preventing uncontrolled expansion and tissue injury.

Conical silicone members with tooth-shaped ends prevent leakage and migration in varying vessel diameters.

Self-expanding foam anchor conforms to left atrial appendage anatomy, eliminating tissue damage from hooks and preventing perfusion risks.

A torus-shaped intrasaccular occlusion device provides radial resistance to prevent slipping from the aneurysm sac.

Helical coils connect multiple permeable shells to conform to irregular aneurysm shapes, reducing rupture risk during delivery.

A shape-memory alloy coupler secures an embolic device within a delivery catheter, enabling precise placement while avoiding cumbersome maneuvering errors.

A sealing cuff featuring protrusions and sutures distributes sealant uniformly around tubular body organs to reinforce anastomosis sites.

Twisting struts anchor the flow diverter at bifurcations, preventing recanalization while preserving parent vessel blood flow.

A variable stiffness embolic coil uses larger primary wind loops to increase flexibility at inflection points.

Localized adhesive secures fibers inside the primary coil lumen without increasing diameter, preventing dislodging during deployment.

A multi-cellular closure device approximates internal tissue openings using lateral force and anchors.

A left atrial appendage closure device uses a shape memory alloy central member to change configurations from pre-deployment to post-deployment states.

A locking mechanism couples distal and proximal disc portions of a medical device to pull them together.

A resilient member maintains tension on the occlusive member of an expandable framework to seal the left atrial appendage and reduce thrombi formation.

Laser-cut anchors on a woven elastic metal wire plugging column improve fitting and stability without weakening structural integrity.

Bristles penetrating the tube wall prevent migration by eliminating connection interfaces that cause disconnection and unreliable anchoring forces.

Segmented pusher member prevents coil stretching during retrieval while enabling accurate positioning in tortuous vasculature.

A self-expandable hyperelastic cage prosthesis seals the left atrial auricle using elastic thrust against the inner atrial surface.

Shape memory implant frames achieve immediate total vessel occlusion and manage hepatic venous pressure gradients below 10 mmHg.

An atrial appendage closure device uses an insertion rod and occluding member to seal the left atrium.

A left atrial appendage occluder uses a silk woven connection member to adjust distance and angle between plates.

A helically wound embolic coil integrates an anchor filament forming a distal eye to secure a stretch-resistant member within the coil lumen.

A solid wall interatrial shunting device anchors to the atrial septum via a self-transitioning assembly.

Segmented anchor tips prevent tissue perforation by combining penetrating and non-penetrating elements.

Spherical capture elements and flexible couplings allow tilt while maintaining vessel wall contact, preventing migration in curved vessels.

Nested metal tube sections telescope to limit elongation, preventing excessive sheath length and tissue damage while maintaining dimensional retention.

A tacky polymer plug forms within the lumen to prevent fragment migration and simplify retrieval, reducing procedural complexity.

Knotted stretch-resistant members anchored to detachable portions prevent coil extension during repositioning.

Porous channels in the occlusive member guide endothelial cell migration to seal the left atrial appendage and prevent thrombi entry.

An inflatable occlusion apparatus applies fluid pressure to compress the atrial appendage for effective sealing.

A conformable left atrial appendage occlusion device uses a compressible open cell foam sidewall to seal the ostium.