Occulders TRIZ Cases
- Embolic Delivery Interface for Large-Profile Vascular Positioning
A mating interface bridges catheter and embolic device size mismatch to improve push force transfer and positioning in narrow vasculature.
- Variable-Porosity Aneurysm Implant for Neck Flow Restriction
Regional porosity in a frame-and-mesh aneurysm implant restricts neck inflow while promoting endothelialization and vessel wall healing.
- Helical Embolic Filter Structure for Large Emboli Capture
A super-elastic helical filter deploys from a thin cannula to capture large emboli and resist axial compression in blood vessels.
- Braided Occlusive Structure for Conforming Vascular Malformations
A braided distal-proximal occluder conforms to irregular vascular malformations, fills residual volume, and promotes complete blood flow cessation.
- Hook Wire Retention for Premature Embolic Implant Detachment
A tensioned hook wire adds frictional resistance at the distal tube to stop premature embolic implant detachment in tortuous vessels.
- Proximal Link Wire Slack for Preventing Premature Implant Detachment
A slackened pull-wire bend around a link-wire loop keeps the implant secured through tortuous vessels until precise release at the target site.
- Left Atrial Appendage Closure Using Radial Tissue-Pulling Arms
Radial engagement arms and a threaded drive pull left atrial appendage tissue closed to isolate it from blood flow and reduce thrombosis risk.