Medical Devices TRIZ Cases

Processor device compares actual sensor signals to expected values, detecting drift to prevent false occlusion alarms in infusion lines.

Segmented bubble removing unit uses centrifugal force and buoyancy to collect gas, preventing patient exposure during extracorporeal circulation.

Integrated aerosol device mixes sealant components on demand to eliminate clogging and reduce setup time during hemorrhage control.

An articulated stopcock connects to a syringe hub, enabling one-handed manipulation of fluid flow through the injection port.

A closed-loop control system adjusts basal dosage delivery by excluding historical basal dosages from unmetabolized substance calculations.

A magnetic encoder detects drivetrain rotation via a Hall Effect sensor and magnet.

A detachable memory foam pad attaches to lift swing slings to cushion user appendages.

A dental suction tip with an articulating joint allows operators to adjust the nozzle angle, improving line-of-sight and ergonomic comfort during procedures.

Segmented latch members engage the syringe flange to resolve insufficient mounting reliability without adding complex external actuators.

A catheter handle uses a cam assembly with dual pins to actuate pull wires for precise tip deflection.

A tube port rib indents an intravenous tube to prevent occlusion at sharp exit angles, ensuring accurate medication delivery.

An outer casing moves between positions to actuate switches, enabling dynamic state switching while managing device complexity.

Angled heating section reduces internal condensation while maintaining efficient solution replenishment.

An implanted infusion needle system uses a drive unit to advance the tip through an actuated flap for precise drug delivery.

Integrated sealing sleeve merges joint functions to boost assembly efficiency while maintaining reliable sealing performance.

Ultrasound energy increases vessel permeability, improving drug absorption and reducing restenosis rates.

A dosage lever engages a cam surface tangentially to release powder doses in an inhalation device.

Segmented composite wicks control immiscible liquid flow rates to maintain precise concentration ratios in the generated aerosol.

Feedback loops dynamically tune piezoelectric pump frequency based on signal magnitude, optimizing energy efficiency despite component variances.

Segmented compartments with evaporative membranes reduce exudate volume, extending therapy duration while ensuring regulatory compliance.

A hose pump cassette uses a bevel and retaining pin to couple quickly to the housing wall.

Elastic pressing mechanism standardizes contact pressure on mucoadhesive film, resolving reliability issues in self-medication drug release.

Asymmetric spring connectors prevent reverse polarity while RFID verification detects cannula occlusions during priming.

A medical pump adjusts its pumping algorithm using stored segment characteristics to ensure precise fluid delivery.

A handheld device integrates a rotating bristle head, LED light sources, and a substance dispenser into one unit for simultaneous skin therapy.

Segmented VAD cables with disconnect couplers enable on-demand replacement, reducing skin trauma and surgical intervention needs.

A microstrip transmission component integrates a complementary split ring resonator arrangement to suppress electromagnetic interference in wireless medical devices.

Pre-stressing contrast injection tubing via elastic expansion reduces pressure drops and plastic waste while maintaining consistent flow rates.

Segmented spring clips and local cushioning pads resolve the trade-off between water exclusion effectiveness and user comfort.

A power injection catheter uses a non-compliant pressure relief mechanism to modulate sudden pressure spikes during high flow rate fluid delivery.

Combined hydraulic and electrical control on the extension conduit activates an electric switch while opening a valve to allow continuous thrombus aspiration.

An inner hollow rod transfers solvent from a second carpule into a first evacuated chamber, dissolving solid matter to reduce medication waste and human error.

Cyclic block copolymer seals in metering valves maintain fluid integrity without adverse chemical interactions.

Volume-based compensation adjusts pump pulse frequency as tubing degrades, maintaining flow accuracy without hardware changes.

Integrated dual chambers bias closed to disinfect needleless hub connectors, resolving compliance issues from two-handed manual scrubbing.