Medical Devices TRIZ Cases

A handheld assembly uses a plunger escapement with multiple ramps to extend the plunger and express unit dose medicaments.

Porous knitted architecture minimizes foreign body reaction while maintaining mechanical strength.

Replacing Bluetooth modules with a passive NFC tag reduces power consumption and device complexity while maintaining accurate medicament dose tracking.

A medical skin applicator uses a penetrable fluid housing and penetrating member to dispense agents without compression.

Dual ultrasonic chambers segment particle sizes to eliminate splashing and improve inhalation efficiency.

A pressure sensor monitors internal control device volume to detect baseline drops and trigger leak notifications.

Grooves direct propellant into a compound container to agitate and entrain the drug for targeted delivery.

An asymmetric injection needle cuts hard tissue helically to reduce displacement and pain during anesthesia delivery.

A modular medical connector uses nested cylindrical portions to join members securely along a central axis.

Rotating elastomeric spheres accommodate angled trajectories without lateral biasing forces, maintaining precise therapy delivery tip placement.

A multi-stage needle insertion mechanism employs a slide valve to restrict backflow, preventing clot formation and ensuring reliable medication delivery.

Reusable hardware unit and disposable circuit automate additive solution mixing with red blood cells.

Segmentable optical fibers maintain brightness while minimizing energy loss during vocal cord injections, reducing spatial requirements and production costs.

Sensors detect temperature or pressure shifts as an implant exits a microcatheter, eliminating radiopaque markers and reducing procedural complexity.

A reusable durable assembly interfaces with distinct disposable modules to deliver medicaments in patch or pocket configurations.

A lock element maintains clutch engagement under high pressure, reducing spring stiffness for easier unclutching.

A sleep stimulation device applies stimuli synchronized with brain rhythms to enhance slow-wave sleep stages.

A retractable stem deposits copper residue on skin to kill pathogens.

A phototherapy face mask integrates a piezoelectric pump to uniformly distribute pharmaceutical compositions across the facial skin.

Adhesive pad secures surgical drains to prevent dislodging while maintaining fluid drainage continuity.

An automatic infusion device reads an IC tag on the drip tube to verify specifications before starting operation.

Segmented pistons with internal ribs create controlled fluid channels while antimicrobial agents prevent microbial growth in medical access ports.

A continuous glucose monitor sensor advances with an infusion catheter during insertion.

Relocating the breath actuated mechanism flap prevents accidental triggering and clogging while maintaining compact device size.

An alarm management system assigns sub-priorities to alerts based on dynamic patient attributes and routes them to appropriate staff members.

Heat-resistant carrier substrate ensures uniform heating of aerosol precursor, preventing pyrolysis and ensuring consistent release.

A waste liquid receptacle uses a segmented film seal with distinct breaking forces to manage negative pressure during suction operations.

Injecting saline into the subdural space and raising the upper body induces orthostatic headache relief to confirm cerebrospinal fluid hypovolemia.

A split septum assembly with a resilient compressible body and conical fluid passageway enables secure cannula insertion.

A passive detection circuit switches an inhalation device processor from standby to operation mode upon substance storage attachment.

A single inlet port connects multiple therapeutic fluid reservoirs using a shared needle access point and internal septa.

Segmented inflatable nasal packs apply targeted pressure to control epistaxis while maintaining airway patency.

A peritoneal dialysis machine dynamically adjusts treatment parameters during operation to optimize solution usage.

A metered dose inhaler integrates a mechanical counter with an electrical triggering unit to generate signals upon actuation.

A mobile negative pressure wound therapy system uses a universal pump to handle both high and low exuding wounds, eliminating the need for different setups.

An oral retention device secures an osmotic pump tablet within the mouth to enable sustained drug release.

A sleep monitoring alarm system measures actual sleep duration to trigger awakening signals only after a user-defined rest period is achieved.

Rotating a multi-passage member changes the chamber inlet dimensions, resolving compatibility issues with diverse aerosol-generating materials.

Ultrasonic vibration generates sub-6-micron droplets through an aperture plate, preventing surface blockage and ensuring accurate alveolar deposition.

Piezo disc aerosol delivery device adjusts gasket compression via threaded fastener to control particle size for consistent lung deposition.

A sizing shaft creates a precision fluid flow path to reduce variability in medical injection flow rates.

A headband device synchronizes brainwaves using integrated earphones and vibrational bands.

Posterior-to-anterior catheter insertion aligns with the putamen long axis, reducing reflux and hemorrhage risk from frontal entry.

A microdosing system adjusts psychoactive drug dosage using real-time electroencephalogram metrics.

A magnetic safety coupling links an infusion drive slide to a fluid reservoir stopper using permanent magnet attraction.

Dual spring mechanisms in a syringe pump drive maintain axial centerline alignment, ensuring constant flow rate delivery despite uneven pressure application.

Segmenting aerosol generators prevents unwanted pulmonary penetration of flavor while delivering efficient nicotine.

A sampling connector with a one-way valve allows fluid withdrawal through an internal conduit.

A tattoo apparatus uses a cam link and rolling bearing members to convert motor rotation into linear needle movement.