Medical Devices TRIZ Cases

Curved introducer guides injector to sphenopalatine ganglion, resolving targeting inaccuracy and procedure complexity.

A push-to-release actuator primes and locks a therapy piston using a keyed latch mechanism.

Plate electrodes generate localized electrical fields to increase adipocyte membrane permeability, eliminating surgical incision requirements.

Dextrose concentrate disinfects dialysis disposable sets, reducing storage costs and manual cleaning effort.

A medical device connector uses an identification device to generate a characteristic response for safe controller configuration.

Automated infusion system regulates compressed gas pressure with a movable bleed screw, resolving variability in bio-compatible fluid administration.

Shroud and wing mechanism permanently couples Luer fittings to ISO 80369 connectors, preventing fatal misconnections in medical infusion systems.

An integrated luer access port eliminates sharp edges and adhesive assembly steps while ensuring leak-free fluid sampling through a single molded structure.

A latching mechanism in an injector cartridge door remains unlatched until a cartridge is inserted and the door closes fully.

A medical valve uses a movable lifter to expand internal volume during syringe withdrawal.

Separately translatable movement control devices grip slippery catheters to resolve handling difficulties while maintaining sterility.

Dynamic infusion pressure control using peristaltic pump feedback maintains stable eye pressure during surgery, preventing complications from static settings.

Flexible sheeting forms sealed valve chambers with multiple outlets to enable selective fluid flow control in disposable pumping cassettes.

An asymmetric tab and notch design ensures precise syringe alignment in a medical fluid injection device, preventing incorrect fluid type insertion.

Controller calculates minimum drive current and maximum slope values to resolve detection accuracy issues in over-moulded nebulizers.

An infusion pump system integrates speech and image recognition to process voice commands and food photos for automated insulin dosage calculation.

A particle beam therapy device uses a passage selection unit to filter mixed beams after magnetic deflection.

A vacuum therapy device employs a movable constraining sleeve to compress a porous medium for insertion, then expands the medium to treat internal defects.

A segmented catheter uses a pre-shaped arch segment to rest on the lesser curve of the aorta.

A pivotable actuator arm triggers a locking mechanism that prevents back-pivoting, eliminating reuse risks and contamination in analyte sensor insertion.

A vented dual port centrifuge tube uses a piston and flexible vent pipe to separate biological fluids.

Simultaneous activation of head and body sensors triggers an automatic emergency call, resolving the trade-off between user safety and device complexity.

A computerized system synchronizes olfactory and auditory cues with N1 sleep stages using neural network bio-sensor processing.

A medicinal-liquid administering device uses a position detection sensor to verify the initial state of its movable part before operation.

Motorized magnetized needles attract and extract tattoo pigments, reducing treatment sessions and surface alteration.

Segmenting context and bypass arithmetic coding reduces mode switching overhead, lowering processing delay while maintaining high coding efficiency.

Tapering the ball track width reduces powder retention and overdose risk while maintaining precise dosing across all orientations.

Implantable pump delivers insulin via umbilical catheter to portal vein, eliminating subcutaneous absorption lag and improving glucose control precision.

An inhalation-activated dry powder inhaler triggers dose expulsion via pneumatic pressure, resolving overdose risks while maintaining high delivery efficiency.

A reusable semi-rigid drain container integrates a load cell for effluent weight measurement and wheels for mobility.

A portable vaporizer uses a sliding cover on parallel rails to trap vapors over a heated ceramic bowl.

Electroactive polymer plunger dispenses medical substance through elongate shaft during stapling, eliminating separate devices and reducing tissue trauma.

Normally closed cupped elastomeric membrane prevents free flow when disconnected from pump while enabling automatic priming via axial actuation.

Rotational threading in the connector secures the assembly against accidental removal yet allows quick detachment for safe disposal.

A controller estimates outlet flow rate by calculating system deformation under pressure to replace mechanical sensors.

A rotatable shield with a pivoting distal portion covers medical needles during operation.

A self-contained wound dressing integrates a vacuum pump, battery, and sensor to create controlled negative pressure directly at the treatment site.

A medical waste receiver employs a cam mechanism to align inlet and outlet ports, preventing clogging and biohazard risks during manifold coupling.

Spring-loaded actuation button drives a piercing element to dispense medicament from sealed doses, eliminating manual preparation steps.

A guide hole directs the needle through a tapered tip to align precisely with the eardrum.

Segmenting the delivery path with a sliding diaphragm eliminates dead space waste while maintaining high accuracy in deep brain regions.

A vacuum sponge system incorporates a delivery member channel to guide insertion through gastrointestinal lumens deeper than 10 cm.

A nebulizer mouthpiece uses a tongue plate to divide the inner space into separate aerosol and pressure detection channels.

Segmenting the pump into reusable and disposable parts allows patients to self-install vials, reducing healthcare professional intervention time.

A catheter securement device integrates a digital clock and flow sensors to automate insertion tracking and patency monitoring.

A priming cap vents trapped air from medical connectors using a hydrophobic filter plug that blocks fluid passage while allowing gas expulsion.

A wearable saliva management device uses a wind-up timer and finger pump to release water mist under the tongue for hydration.

A compact particle accelerator uses dielectric-metal-oxide wafer stacks to accelerate charged particles efficiently.