Haemofiltration TRIZ Cases

Modifying substitution fluid flow creates a temporary bolus that isolates fistula recirculation from cardiopulmonary recirculation for accurate quantification.

A dialysis monitoring system correlates blood circuit pressure with dialysate UV absorbance to identify filter clogging events.

A blood purification apparatus uses a dialysate infusing pump to measure fluid pressure in a closed circuit for automatic connection confirmation.

A blood bag system uses a storage solution supply means to recover residual blood from a treating filter into separate bags.

A blood purification apparatus circulates dialysate through a storage device and dialyzer to enable continuous treatment cycles.

Grooved longitudinal fibers in blood filters prevent biofilm blockage by enhancing platelet adhesion and improving filtration flow.

Parallel blood purifiers with selective switching enable continuous cleaning, reducing membrane clogging and replacement frequency.

A disposable rigidity test measures pressure changes from fluid occlusion to verify component stiffness.

Selective apheresis withdrawal of Galectin-3 via binding agents lowers circulating protein levels and mitigates sepsis severity.

A medical filter identification method uses pressure sensors to measure fluid profiles across the filter medium for accurate type assignment.

Isoelectric pH adjustment preserves coagulation factors during ion-exchange chromatography, preventing their removal while eliminating endotoxins.

Variable stroke and phase synchronization in paired plunger pumps stabilize dialysate pressure, eliminating pulsation without separate water removal units.

A dialysis user interface controller dynamically manages operation step items based on process progress and sensor inputs.

Integrating hydrophilic urethane segments into polysulfone matrices eliminates additive leaching, preventing membrane fouling and improving blood compatibility.

Radial cooling vanes expand the external surface area of a blood component container, reducing freezing time and minimizing plasma component degradation.

A control unit manages ultrafiltration and nutritional flow rates using real-time weight signals from sensing elements.

Integrating electrodes into a single organizer eliminates complex placement errors, ensuring accurate hydration state assessment during peritoneal dialysis.

Segmenting pump volume via a dialysate-side oscillating pump overcomes blood-line elasticity limits to boost clearance performance.

A displaceable partition wall creates negative pressure for precise fluid removal, eliminating complex pumps and valves.

Fluid pumps control blood pumps using treatment fluid, enabling straightforward ultrafiltration adjustment while reducing device complexity and infection risk.

Glucose pump maintains constant osmotic concentration in the peritoneal cavity, preventing hyperglycemia during ultrafiltration.

Wearable dialysis system circulates fluid through nanoclay sorbents to remove body wastes and enable continuous fluid reuse.

Controller adjusts peristaltic pump speed based on infusion pressure to prevent hemodynamic instability during plasma extraction.

An optical sensor detects replacement fluid identity during therapeutic exchange procedures, preventing adverse patient outcomes from incorrect fluid loading.

Transfer pumps decouple liquid movement from gravity, allowing flexible storage layout while maintaining reliable flow rates.

Dip coating a helical wire assembly forms a parachute canopy filter that maintains strength while enabling thin walls for easier vessel passage.

A catheter with a semipermeable membrane draws blood-borne water into an influent via osmosis.

A modular hemofiltration apparatus uses an interactive control system to calculate and display maximum allowable fluid gain or loss based on patient weight.

A bioartificial liver device combines hepatocyte spheroids in a reservoir with an albumin dialysis system for metabolic support.