Dialysis Systems TRIZ Cases

An adjustable urease introducer allows precise enzyme addition to sorbent cartridges, reducing waste from variable patient loads.

An asymmetric diverter column in a membrane oxygenator directs blood flow to reduce thrombosis risk on the opposite side of the outlet.

A blood purification support system estimates pre-treatment patient states using stored multi-day data to determine necessary condition changes.

A dialysis monitor mounts to a swiveling front door for ergonomic viewing.

A portable hemodialysis system adjusts dialysate flow rates to optimize urea removal efficiency.

A hemodialysis wall box separates clean and waste fluid zones using snap-in components and anti-microbial impregnation.

Periodic sampling of spent dialysate enables reliable treatment assessment without frequent composition perturbations that increase noise sensitivity.

A dual-chamber container dissolves bicarbonate powder in minimal water while a filter retains undissolved particles for homogeneous solution delivery.

Thermoplastic polyurethane tube with Shore hardness above 60 D resolves wall thickness control trade-offs to ensure reliable heat transfer in oxygenators.

A method for viral inactivation by heating dried biological products to temperatures at or above their glass transition temperature.

A single metering pump conveys specified concentrate volumes into balancing chambers across successive working cycles to produce dialysate.

Segmenting withdrawal and return flows into a single pump reduces inflammatory mediators in cerebrospinal fluid without increasing device complexity.

A medical functional device uses operating fluid to actuate conveying devices through hydraulic pressure.

Segmented inlet ports prevent disinfectant backflow through the water valve during pressure drops.

Raman spectroscopy monitors analyte saturation to modulate dialysate flow rates during hemodialysis treatment.

A pulsed electric field device sterilizes dialyzers by generating penetrating electrical pulses between electrodes.

An elongated flap integral with the connector body simplifies fluid engagement in medical injection systems.

Conductivity and gas detection signals prevent incomplete cleaning by verifying concentrate passage connections before the main process.

Automated optical scanning of dialysis consumable labels prevents patient risk from user errors and incompatible components.

A medical port with a rotating sealing section eliminates dead spaces that cause air pockets and clotting in extracorporeal blood treatment lines.

Flexible housing walls expand during systole and contract during diastole, mimicking natural vessel elasticity to lower heart pumping resistance.

A magnet and reed switch detect locked door states without power or complex circuitry.

Detection portion moves relative to lower floor upon wall rupture, preventing toxic dialysate use by ensuring proper compartment mixing.

A control unit calculates treatment effectiveness by measuring conductivity variations in spent dialysate lines.

Disposable infusate sleeve with integrated filter prevents particulate contamination while eliminating container cleaning time.

A dialysis regeneration system recycles used fluid through nanofiltration and adsorption to restore solution purity.

An implantable dialysis device uses a nested hollow fiber membrane and electro-hydraulic pump to separate metabolic waste from blood plasma.

A double wall needle with thermal insulation enables controlled heating of the outer surface to melt bag material while protecting the internal fluid.

Segmented caddy connectors guide precise solute addition while simplifying complex fluid line configurations.

Mechanical rotation prevents clotting in hemodialysis filters, eliminating heparin use and bleeding risks.

A portable hemodialysis system adjusts dialysate flow rates to maximize toxin removal efficiency.

A centralized heat pump recycles thermal energy from exhausted dialysis fluid to preheat water, reducing peak power consumption and operating costs.

A diaphragm pump uses pneumatic compression to displace fluid while maintaining a compact footprint for medical integration.

Dynamic threshold adjustment detects pump current increases without recalibration, preventing interference pulse errors.

Segmented disposable and reusable components isolate an air column from blood, preventing infection while maintaining static and dynamic measurement precision.

A medical fluid device uses a pump to generate negative pressure, moving a displaceable member to segment the line section.

A blood oxygenator integrates a filter member with a passage enlargement to decelerate flow and capture gas bubbles before discharge.

Compressible fluid chambers in a blood dialyzing apparatus replace multiple pumps and balancing units, reducing device complexity for home use.

A mobile device mixes reverse osmosis water with concentrate to produce dialysis fluid.

Shaped ribs on the centering device align the filter cartridge pin with the standpipe hole, preventing radial movement and fuel flow blockages.

Sterilized dialysis filters remove pathogens from water, reducing costs and medical waste disposal burdens.

Segmented shunts maintain oxygenator flow to prevent thrombus formation while minimizing neonatal anticoagulant exposure.

Periodic pumping and resting phases resolve the trade-off between sampling efficiency and time resolution in continuous flow microdialysis.

A cylindrical filter device uses a porous spacer layer to distribute body fluid flow evenly, preventing pressure increase and incomplete recovery.

Elongated blood chamber design eliminates laminar flow induced clotting and hemolysis at low rates through geometric configuration.

Optical scanning mechanisms identify filter couplings to prevent inflow backflow confusion, ensuring sterile dialysate delivery.

A blood treatment device control unit monitors bag weight to manage fluid supply interruptions.

Hydrophobic filtration cap prevents particulate and moisture fouling in medical vacuum pumps, extending device lifespan.

An integrated valve island merges fluid lines and components to reduce installation size and assembly effort in dialysis machine hydraulic assemblies.