Multi-Lumen Catheter TRIZ Cases

Asymmetric microcatheter orientation on a support member minimizes backflow risk while delivering bioactive agents into cerebral tissue.

Segmented conduit structures with porous bioresorbable sheaths prevent blockages and maintain vacuum pressure to promote wound healing.

A suction catheter apparatus manages fluid flow rate and lumen diameter to create a low-shear environment around the distal end.

A steerable catheter handle integrates an internal track and strain relief sheath to enable multi-axis deflection of the distal end.

A low-profile subcutaneous access port with a concave receiving cup and valve assembly for reliable dialysis.

Segmented design with side openings prevents ischemia and re-perfusion injury by sustaining distal blood flow during prolonged sheath placement.

A biopsy probe uses a dedicated medicine lumen to deliver medication through the device tip.

Segmented catheter bodies with graded stiffness reduce stress concentration at the transition zone, preventing fracture during coronary artery interventions.

A dual-instrument medical apparatus combines an esophageal valve with a laryngeal filter to block gastric reflux and foreign substance invasion.

A catheter with a laterally deployable member guides guidewires back into the true lumen.

An elliptical multi-lumen catheter profile expands lumen area to increase fluid flow rates while maintaining structural integrity and kink resistance.

A dual lumen catheter uses a retractable ruler lumen to measure lesion length, preventing geographical miss from visual approximation errors.

Segmented shaft walls and external actuators enable cleaning fluid access to surgical instrument interiors.

Segmented exit openings disperse blood flow velocity to reduce emboli risk while maintaining perfusion rates.

Nested adapter assemblies integrate electromagnetic sensors into ENT instruments, enabling real-time spatial tracking without modifying the primary device.

A catheter assembly with unstaggered lateral openings enables simultaneous arterial aspiration and venous infusion through a multi-lumen structure.

Offset aspiration ports enable percutaneous access through unscarred tissue, avoiding infection risks from burr hole surgery.

Segmented catheters enable portable hypothermia treatment by distributing oxygenation functions, overcoming bulky ECMO constraints.

Transformable cap body covers catheter distal tip during insertion to prevent vein laceration and tissue injury while enabling safe guidewire advancement.

Segmented braid pitch in composite laminated catheters resolves pushability-flexibility trade-offs by optimizing proximal rigidity and distal navigation.

A cannula design featuring distal openings and proximal fenestrations directs oxygenated blood flow to sustain systemic circulation.

Segmenting the guidewire section from the aspiration zone eliminates rotation stiffness and vessel irritation while maintaining precise placement accuracy.

Segmented polyurethane stents expand Schlemm canal to lower intraocular pressure without filtering bleb scarring.

Segmented ring elements fused into a continuous tube provide variable flexibility and kink-resistance across different regions.

Modular catheters use replaceable ultrasound transducers to resolve insufficient deep tissue image quality.

Land portions create drainage slits during extrusion, eliminating post-processing costs for complex profiles.

Elongating and shrinking the core wire peels it from the hollow tube, preventing shape deformation during manufacturing.

Staggered lumen openings in multi-lumen catheters reduce recirculation and maximize flow rates.

A micro-injection molded catheter housing integrates ring electrodes and sensors via flex circuits to simplify assembly.