Other Blood Circulation Devices TRIZ Cases

See how controlled fiber diameter, porosity, and thickness in knitted fabric remove neutrophils

See how a knitted fabric with controlled fiber diameter, porosity, and thickness removes neutro

See how a vinyl acetate-pyrrolidone copolymer coating on porous non-woven filters removes leuko

See how supercritical CO₂ hydrophilizes filter material to remove leukocytes without solvent re

See how a modular frame and aligned control panel reduce operator errors by mapping each medica

A flat over-device control panel aligns each control and display with its medical device to improve heart-lung machine ergonomics and reduce errors.

Ultrasound, low-dose flocculation, and bottom suction clarify tank water by filtering only collected effluent instead of the full volume.

A cabinet-coupled user interface follows a fixed path to open housing access while avoiding blood tubing interference and added support complexity.

Turbulence-inducing baffles in heating conduit bends suppress hot spots, improve blood temperature uniformity, and help prevent cell damage.

A bent multi-section infusion rod shifts the securing point beside the housing, making fluid bags easier to mount and remove.

A two-stage spring force moves the contact section from setup to closed position, securing external apparatus while lowering operator injury risk.

Wireless power transfer replaces slip rings in a centrifuge, improving rotating-device reliability while enabling power and data exchange.

Magnetic coupling lets an implantable AV graft valve open only during treatment, limiting constant blood diversion and reducing complications.

Sensor-guided multi-wavelength illumination improves pathogen inactivation while reducing residual compounds and limiting damage to biological fluids.

An occluding catheter pools contrast at a bifurcation to guide percutaneous bypass routing and restore lower-extremity blood flow with less trauma.

An occlusion catheter pools contrast at a bifurcation to guide wire routing between lower-extremity vessels for minimally invasive bypass creation.

Contrast pooling behind an occlusion catheter helps identify bifurcations and route guidewires through lower extremity vessels with less trauma.

A shared core optical module with swappable scanning interfaces cuts reconfiguration cost while supporting precise multi-application measurements.

A rigid sealed reservoir with EM-transparent windows enables precise ex vivo fluid treatment while reducing syringe handling and contamination risk.

Selected UV wavelengths plus sensor feedback cut pathogen levels in biological fluids while limiting photoconversion and fluid damage.

Passive and external magnets actuate an implantable valve on demand, controlling AV graft blood flow only during hemodialysis.

An occlusion balloon, contrast pooling, and ultrasound targeting help route a guidewire across lower extremity vessels with less trauma.

Optical touch sensing across display and base controls keeps dialysis interfaces operable, cleanable, and usable even when display regions fail.

An occlusion balloon and contrast-guided catheter identifies lower extremity vessel bifurcations to improve guidewire routing accuracy under fluoroscopy.

Wireless inductive power and data links replace slip rings in rotating centrifuge components, improving reliability for active blood-processing devices.

Depressurizing or heating the sealed air gap during membrane case assembly prevents diaphragm shift and preserves seal integrity.

Rapid forward, reverse, and bypass switching clears hyperthermia line debris without disconnecting components or stopping fluid flow.

A single cassette with three pumps and controller automates multiple CRRT modes, reducing complexity, operator error, and ICU dependence.

An elastic positioning groove and rotation-based lock let ECMO pump bodies be inserted, adjusted, and secured quickly with clear locking feedback.

Elastic positioning and guided locking let an ECMO pump body be quickly secured, rotated, and repositioned with less subjective operation.

A spring-loaded conical centering interface aligns the dialysis quiver with the front plate to create a gap-free seal without manual adjustment.

Conical centering surfaces, a spring-loaded quiver, and bearing play create a clean, gap-free dialysis interface without manual adjustment.

A removable faceplate and clamping bracket give direct valve access while blocking threading debris from contaminating pneumatic pathways.

Removable brackets and o-ring sealing let pneumatic valves be replaced quickly while keeping medical fluid machine air passageways particulate-free.

A flat rotary valve and external support reverse hemodialysis blood flow with short rotation, clear tube routing, and lower clotting risk.

A gasket-first port and removable faceplate keep pneumatic passages particulate-free while allowing fast valve replacement in medical fluid delivery machines.

A rotatable plug with arc-shaped tunnels switches adjacent blood ports in one action, reducing clamp errors and stagnation risk.

A single knob rotation lets an HLM acknowledge a pump-stop event and restart the pump without separate alarm override actions.

Authorization levels and password checks limit protocol changes in blood cell washing, improving reproducibility while preserving admin flexibility.

A silicone-fluoroalkyl copolymer cover cuts post-puncture water leakiness while preserving tubular base flexibility for dialysis grafts.

High-molecular-weight and polymeric plasticizers help PVC blood-processing tubing resist migration, preserving solvent bond strength and sterility.

A rotatable flow-directing valve reverses hemodialysis blood flow without twisting tubing, enabling automated switching and timed measurements.

Using a flexible non-elastic membrane, this pump chamber creates pulsatile flow that limits hemolysis, avoids stagnation points, and stabilizes blood pressure.

A movable supply block seals to a syringe cap to drive fluid pneumatically without breaking sterility, enabling efficient small-volume cell washing.

Authorization-based protocol control limits who can change wash parameters, improving reproducibility while preserving flexibility across cell processing systems.

A single-inlet double suction layout splits blood evenly across both impeller sides to cut shear stress, thrombus risk, and pump size.

A monolithic duckbill valve and filter combine one-way flow with positive and vacuum relief while blocking airborne bacteria.

Parallel tubing routed by an external support reverses hemodialysis blood flow without line crossing, reducing kinking and clotting risk.

Radial loading and controlled torque automate Luer lock joining and release, reducing vessel stress while keeping fluid connections secure.

Interfering parts stop overtravel in a flexible tube clamp, preventing mislocking, deformation, and inaccurate fluid shutoff.

Rotating a preset knob position restarts a stopped heart-lung pump after trigger events without leaving the speed control.

A cap filter separates sterile fluid handling from external pneumatic actuation, enabling precise washing of small cell volumes with less media.

Spring-biased plugs and an irregular orifice lock cardiac pumps quickly and securely while cutting mount assembly cost and replacement time.

Depressurizing or heating the air gap during case assembly prevents diaphragm shift and preserves seal integrity in membrane-based medical devices.

A rotating collar with hooked and locking projections creates a fluid-tight medical connector that resists unintended disconnection without complex parts.

An external tubing support guides a rotary blood flow reversing valve to prevent kinks, speed flow reversal, and maintain catheter blood flow.

A rotary valve modulates constant-flow heart pumps into pulsatile output, reducing blood-flow complications with simpler, longer-lasting hardware.

Adjustable LED indicators help clinicians distinguish pump, valve, and clamp status and flow direction, even with color vision deficiency.

A biased membrane opens only on plug insertion, keeping dialysis fluid connections sterile while simplifying alignment and use.

A two-stage centrifugation approach recovers extracellular vesicles from platelet-poor plasma and mixes them back into PRP for injection.

Asymmetric electric fields guide catheter alignment for percutaneous AVF creation, reducing surgical trauma and supporting reliable hemodialysis access.

Combining centrifugation with spinning membrane filtration separates plasma and red blood cells while preserving sterility and reducing membrane fouling.

A sterile disposable fluid circuit with integrated pumping and heating enables precise ECMO temperature control during transport while reducing contamination risk.

Dual load detectors separate pressing and reaction forces to measure cassette circuit pressure accurately in both negative and positive regions.

Multiple heating zones and sensors help a battery-powered blood warmer deliver even temperature control for field transfusions.

Dynamic asymmetric venous pressure thresholds detect incremental needle disconnection drops in restless dialysis patients while reducing false alarms.

Closing the dialysate outlet triggers timed backflush cycles that clear secondary membrane fouling and preserve dialyzer flux during treatment.

By comparing dialyzer clearance before and after flow reversal, the machine estimates vascular access flow without extra equipment.

Flexible housing and support structures help biological fluid filters withstand handling and centrifuging while preserving filtration integrity.

Periodic pressure differentials segment dialysis fluid lines, dislodge trapped air, and improve disinfectant wetting during filling.

Electrodes measure impedance between catheter lines so a controller can flag disconnections and manage pump response during dialysis.

A pump-driven negative-pressure cycle vents air through a hydrophobic membrane, helping verify tightness before patient connection.

A pre-connected, motor-guided coupling keeps concentrate handling hygienic while limiting dripping, spillage, and crystallization.

This case uses immobilized lectins in porous hollow fibers to capture SARS-CoV-2 and exosomes during continuous blood filtration.

This case uses multiple pressure readings to detect sensor-position mismatches before extracorporeal circulation, reducing connection risk.

A controller adjusts continuous-flow centrifuge speed to changing blood inflow, helping maintain separation efficiency and hematocrit.

Programmable controller primes apheresis kits with collected blood products, preventing saline-induced volume shifts in pediatric patients.

A femoral arterial cannula uses a concave perfusion guide channel and through-hole to direct blood flow bidirectionally.

Self-priming peristaltic pumps meter storage solutions into blood components using optical feedback, reducing operator error during apheresis processing.

A hemodialysis flow component uses a hollow elastic element to generate swirling liquid motion within an intermediate connector.

A wearable artificial kidney device removes toxins and moisture via ultrafiltration without a dialyzate system.

A blood pump increases wall shear stress to dilate peripheral veins, preventing intimal hyperplasia and enabling durable hemodialysis access.

Endoscopic cannulation apparatus uses a fluid stasis assembly to prevent fluid escape during remote tissue coring.

An extracorporeal chamber triggers drug release from intravascular delivery systems and filters unencapsulated molecules to reduce systemic toxicity.

A postoperative autotransfusion device uses a movable separator partition to isolate red cells from supernatant.

A blood line connector integrates screw-type and press-in interfaces for secure fluid management in hemodialysis circuits.

A dialysis system alternates hemodialysis and peritoneal dialysis treatments using a unified control unit.

A disposable cardiac heat exchange system uses single-use water tanks and roller pumps to maintain stable fluid circulation during surgery.

Elastic divergence of split-tip catheter lumens eliminates stagnant junction zones that cause clot formation during hemodialysis.

A spiral flow channel cartridge separates plasma from blood cells using centrifugal force, eliminating manual handling and external centrifuges.

A medical pump injects an air bubble into its fluid tube to measure pumping volume accuracy and sensor functionality.

A pressure detector uses a hydrophobic membrane to separate liquid and gas phases while transmitting pressure signals.

Critical fluid permeation ruptures viral particles while preserving plasma protein potency.

Negative pressure cycles in the arterial circuit redirect air bubbles to venous lines, preventing coagulation risks and reducing manual workload.