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.

Adaptive ultrafiltration rates in closed-loop dialysis prevent excessive blood volume drops that cause cramps and nausea.

Extracellular vesicles fuse with biological material to create stable, reproducible acellular therapies without cellular instability.

Variable diaphragm speed creates pulsatile flow that disrupts boundary layers, reducing hemolysis while maintaining waste removal efficiency.

An asymmetric blood processing filter positions the outlet port lower than the inlet to allow gravity-assisted air removal during priming, preventing blockages.

A modular medical fluid circuit unit uses segmented support projections for stable positioning and easy mounting on dialysis machines.

Segmented infusion sites with dedicated air detectors prevent air injection into the blood circuit during continuous renal replacement therapy.

An extracorporeal blood treatment apparatus regulates dialysis fluid sodium concentration via automated electronic control.

A mobile medical device transports treatment liquid while exchanging data and energy via inductive coupling, resolving mobility constraints.

A hemodialysis machine calculates absolute blood volume using priming fluid infusion and hemoglobin concentration changes.

Chemical testing device integrated into peritoneal dialysis fluid lines uses reactive test pads to detect leukocytes or nitrites in spent dialysate.

A modular reservoir housing integrates a non-contact conductivity sensor and heater to manage dialysate fluid within a portable hemodialysis unit.

A dialyser holder pivots between vertical and horizontal orientations to secure the filter element and simplify fluid connections.

Existing hemodialysis connections serve as sterile sampling points using a dedicated kit and control program, eliminating secondary contamination risks.

A UV light box irradiates separated blood plasma to inactivate pathogens while protecting cellular elements.

Automated biometric verification prevents manual data entry errors by confirming donor identity before executing apheresis parameters.

A medical cassette extracts trapped air through a porous mat layer, preventing islands and simplifying device cleaning.

A biomimetic adsorbent substrate captures pathogens and toxins from blood using a nonporous heparin-coated surface.

A modular dialysate regeneration assembly uses interchangeable sorbent compartments to customize material configurations for specific patient parameters.

A particle bed filter medium retains blood cells while allowing plasma to pass through, eliminating centrifugation time and hemolysis risks.

A self-supporting container uses negative pressure to draw filtrate from a connected bag through a lockable inlet valve.

Mathematical model translates dialysate conductivity into plasma sodium estimates, resolving measurement precision issues without adding hardware complexity.