Dilators TRIZ Cases

Catheter-based delivery of liquid-to-solid fillers seals the false lumen, reducing rupture risk while avoiding open surgery.

Balloon-mounted electrode array delivers radiofrequency energy to compress tissue and achieve coaptive coagulation.

Nested braided devices eliminate catheter exchange time by deploying through diagnostic catheters to rapidly occlude vascular abnormalities.

Nested sheath manipulation deploys a coaxial device that filters emboli and shreds thrombus to prevent pulmonary embolism.

A delivery wire adapter secures occlusive coils using open pitched windings to enable precise detachment.

A resorbable occluder expands within the greater saphenous vein to block blood flow via a percutaneous delivery system.

Offset tines on a rectangular base deform to clamp vessels, accommodating diameter changes during coronary bypass.

Asymmetric balloon geometry applies lifting forces to separated endplates, resolving suboptimal expansion that compresses cancellous bone.

Segmented expandable liners prevent embolic material migration into parent vessels while adapting to complex sac geometries.

A detent mechanism maintains fluid pressure on a seal, preventing backflow without manual intervention.

Physical vapor deposition creates precise pores in nitinol thin films, resolving manufacturing complexity while enabling reversible porosity.

An insulating body supports a metallic pivot element between forceps legs, preventing electrical sparks while maintaining mechanical stability.

Outer surface coil loading eliminates lumen resistance to improve positioning precision during embolization procedures.

A vaginal dilator shaft encloses a receiving space for crystals and integrates a vibrational apparatus to facilitate physical dilation.

Self-expanding occluding device anchors to vessel walls to prevent migration while maintaining effective occlusion.

A thin-walled exclusion device seals aneurysm necks via guidewire delivery.

An embolic coil binds particles via ionic or covalent interactions to form a composite assembly.

A minimally invasive fascial harvester uses a dilator and pivotable cutter-stapler to dissect and staple rectus fascia through a small incision.

A reattachable introducer sheath uses a sliding cylindrical sleeve to detach and rejoin the device from a deployment catheter.

Segmented movable source lumens customize radiation dose distribution in non-uniform body cavities to protect healthy tissue.

A convertible embolic protection device uses a mesh element and tubular lumen to capture emboli during vascular procedures.

Segmented mesh panels with undulating geometries filter emboli from cerebral circulation without obstructing surgical access or blood flow.

Segmenting the electrical contact into a collar and shaft prevents kinking at the junction, ensuring reliable detachment of occlusive coils.

A vascular plug uses a flexible sheet material to block vessel lumens during deployment.

Multi-layer braided structures eliminate additional fabrics by varying strand diameters for rapid occlusion and secure deployment.

Fluid flow activates tentacles that reverse direction and extend into the sleeve interior, reducing procedure time compared to inefficient coil placement.

Offset inner balloon design maximizes heat exchange efficiency to maintain consistent urethral tissue temperature during cryosurgery.

Automatic fluid release prevents balloon slippage and over-inflation risks while maintaining uniform pressure for effective postpartum hemorrhage management.

An adhesive labial retention device holds tissue in place, resolving visualization constraints during catheter insertion.

A remodelable balloon prevents venous reflux without external compression stockings.

A dilator assembly uses pivoting links to radially expand blades within a tubular member.

An expandable occlusion device deploys from an inverted position within a cannula to fill and seal venous vessels.

A vibrating silicone dilator couples a soft coating layer to interchangeable sleeves, resolving the trade-off between structural strength and user comfort.

Radial expansion of a hollow dilator compresses bone walls, securing the graft and preventing rotation.

An inflatable balloon on an access wire occludes blood flow to minimize loss during complex vascular interventions.

An execution device expands a dilation balloon to relieve obstruction, then uses a cutter to form a tissue cut for implant deployment.

An energized flexible wire forms an aorta-left atrium perforation, avoiding mitral valve traversal and reducing vessel dissection risks.

Inflatable balloon and anchoring struts provide instant occlusion, eliminating patient risk during delayed thrombosis formation.

Segmented anchor and occluding wires reduce catheter size and tissue damage for stable PFO closure.

Segmented strut pairs in an occlusion device framework resist distortive forces to prevent emboli while minimizing foreshortening during deployment.

A twisted metal wire coil conforms to irregular vascular cavities, increasing packing density by varying bending stiffness through asymmetric geometry.

A transmissive shaft positions an optical fiber tip proximal to the distal end while liquid flow cools the component during vein ablation.

An expandable guiding member merges access and expansion functions into one device, eliminating repeated insertions that damage tissue.

A limb-secured device applies intermittent compression to dilate target veins for hemodialysis access.

Nitinol scaffold with integrated valve prevents spontaneous deflation and premature detachment during endovascular procedures.

A segmented expandable implant disrupts blood flow at the aneurysm neck while filling the sac, reducing recanalization rates and procedural complexity.

Nested shape memory filter baskets transition between expanded and collapsed states to capture embolic fragments during vascular procedures.

A shaft-mounted dilation head measures and expands corpora cavernosa tissue during penile prosthetic implantation.