Multi-Lumen Catheter TRIZ Cases

A self-expanding tube forms a sealing membrane in the esophagus to block gastric reflux during feeding.

Transitioning lumens in a catheter assembly isolate sensors from blood flow, preventing occlusion and enabling reliable physiological parameter detection.

A catheter employs a movable elongate member to modulate fluid flow, maintaining heat transfer effectiveness despite dynamic physiological conditions.

A steerable catheter uses vacuum suction to anchor the end effector against moving cardiac tissue for precise therapeutic agent delivery.

An integrated optical element directs visible light through a catheter lumen to inactivate pathogens and stimulate tissue healing without damaging living cells.

A dynamic drainage tube moves its distal end within a body cavity using fluid pressure or wire manipulation, eliminating multiple incisions.

A porous fluoropolymer catheter tubing infused with a fluorinated liquid creates a slippery surface that resists biological deposits.

A UV light box with a plasma diffuser selectively irradiates extracted blood plasma to inactivate pathogens.

An internal tether prevents unintentional release of the connector element from the sleeve during positioning, ensuring secure placement.

Micropumps mounted at a catheter proximal end convey medical fluids through a single lumen using time division multiplexing.

Dual-lumen catheters reduce left ventricular distention and thrombus risk during VA-ECMO by localizing anticoagulant delivery.

Segmented tip design with pressure-responsive one-way valves prevents blood ingress and thrombus formation without heparin locking.

A medical fluid exchange catheter uses a pressure-sensing dialysis cavity to maintain continuous circulation.

A detachable capillary tube assembly inserts into existing catheters to add fluidic channels without guidewire manipulation.

A foam collared float apparatus uses buoyancy and centrifugal compression to position itself within a container.

Integrated collection lumens in the delivery tube eliminate external containers, reducing system complexity and weight for low-severity wound treatment.

Nested catheters flare outside a sheath to aspirate renal venous blood, lowering pressure to enhance perfusion despite increased device complexity.

Segmented stiffening elements prevent buckling during guide-wire advancement while maintaining flexibility for safe vessel placement.

Frustoconical side openings in a dual-lumen catheter body create directional flow resistance for exiting and entering fluids.

Nested connectors join self-sealing tubular conduits to bypass central venous stenosis, enabling reliable declotting without damaging the implant.

Arcuate transition region contours to tortuous veins, preventing pistoning and migration during hemodialysis.

Bifurcated catheter hub uses polymer sealant to resolve reliability complexity trade-offs, preventing air embolism during retrograde tunneling.

A blood line infusion site creates a turbulence area by reducing the passage section to enhance fluid mixing.

A self-positioning transvenous pacing catheter uses an atraumatic tip to deploy leads for dual chamber heart rhythm management.

A catheter design featuring a dedicated radial guide wire channel for rapid exchange capabilities.

A catheter assembly positions venous and arterial lateral openings in a non-staggered configuration to enable simultaneous infusion and aspiration.

Staggered lateral openings prevent blood recirculation while nested segments facilitate advancement through tortuous vasculature.

Segmented AV graft with embedded rigid elements prevents needle puncture and extends vascular access life.

Hydrophilic sealing members expand upon moisture exposure to fill gaps between catheter lumens and hub extensions, resolving fluid-tight sealing issues.

A bifurcated inner lumen guides tether portions within a delivery catheter to maintain structural alignment during implantation.

Nested inner and outer tubes in a single coaxial device enable continuous simultaneous evacuation of air and liquids, reducing system complexity.

Replacing welded metal wire actuators with polymeric braided systems eliminates magnetic interference for MRI-compatible steerable catheters.

Segmented lumens with sealing mechanisms enable simultaneous blood flow paths to prevent lower limb ischemia during VA-ECMO.

Multi-lumen infusion aspiration catheter resolves unidirectional flow bottlenecks by enabling simultaneous bidirectional fluid flow through expandable arms.

A sheath body embeds electrodes and electrical traces between walls to enable real-time position detection.

A medical flexible tube design uses a nested single lumen structure to separate control wires and maintain precise actuation.

A segmented extrusion head with a threaded mandrel produces multilumen medical tubes with reduced weight and air voids.

Segmented multi-lumen catheter design enables simultaneous pressure detection across heart valves, resolving placement ambiguity through radiopaque markers.

Segmenting the reusable main body from a disposable tube eliminates sterilization complexity and cross-contamination risks.

A cannula integrates electrodes along its outer surface to detect heart cavity volume via blood conductivity measurements.

Segmenting the catheter allows a shape-memory needle to access multiple sites via one entry point, reducing patient pain from repeated skin punctures.

A flexible tube uses a liquid column to impart forward momentum for probe advancement.

Axial blue light transmission within a catheter body eliminates pathogens without removing the device, resolving cell damage risks from ultraviolet exposure.

A composite laminated catheter shaft uses mechanical deformation to create variable stiffness profiles along its length.

An external belt and strap mechanism anchors a bi-directional perfusion cannula to prevent dislodgment during patient movement.

Nested welded catheter shaft eliminates lumen constrictions to enhance pushability while reducing fluid friction during balloon deflation.

A one-piece catheter shaft eliminates jointures by forming integral loops through transverse bores, removing the bumpy feel during removal.

Catheter sprays fluid against a deflection element to macerate organized thrombus, preventing lumen blockage and reducing cardiac complications during removal.