Medical Devices TRIZ Cases

A deformable cuff with conductive structure detects fluid leaks on medical tubing lines.

A torque regulating mechanism disengages integral rotation between a cylindrical body and main body to prevent torsional buckling in medical insertion devices.

A flexible dielectric device generates plasma discharge directly on the body surface to treat wounds.

Interconnected rollers guide split blister-strip portions to prevent waste dose accumulation and cross-contamination in dry powder inhalers.

Portable infusion pump adjusts occlusion detection sensitivity based on glucose monitoring data.

An integrated dressing interface combines pH, temperature, and pressure sensors to detect leakage and blockages while monitoring wound healing progression.

Magnetic attraction between a pumping segment and a pump cavity replaces manual alignment, preventing slippage during door closure.

Adaptive camera shutter speeds measure droplet volume without expensive high-speed processing equipment.

A rotatable mouthpiece button indexes blister packages via a drive gear mechanism.

Segmented protection across filling, injection, and disposal phases prevents needlestick injuries without requiring separate tools.

A medical device input unit provides immediate haptic, acoustic, or optical feedback to confirm user actuation.

A neurofeedback apparatus selects improvement targets to apply specific brain wave analysis methods.

A cartomiser reservoir holds an inhomogeneous mixture of vapour precursor materials to generate distinct flavour profiles during operation.

A nebulizer reservoir cap integrates a locking pin to divide the interior into separate partial volumes.

Rotating support panels strike needle structures to puncture blisters, eliminating mesh sealing costs while maintaining hermetic drug containment.

A hinged lid secures capsules via seals while preventing pyrolysis through controlled heating zones.

A headband applies transcranial electrical stimulation to synchronize neural activity and promote sleep onset.

A rotatable cover drives a spring to store energy, eliminating complex mechanical breath-actuation systems and reducing manufacturing costs.

A modular blood processing tubing kit supports single or double needle apheresis configurations using one universal flow path design.

A portable nebulizer processes sensing and driving signals to calculate medical fluid volume indication information.

A smart vaporizer system monitors heating parameters to deliver precise bioactive material doses through automated control loops.

A rotating dose ring with sealed powder chambers exposes individual doses to an air channel for inhalation.

Lateral support fins on a liquid sprayer relocate finger contact away from the nozzle to resolve visibility and stability trade-offs during instillation.

Segmenting the apparatus into reusable and replaceable parts reduces waste when components fail or medicament depletes.

Actuator mechanism rotates attachment parts to penetrate tissue for stable drug absorption.

Elongated linear ports in a slotted peritoneal catheter reduce hydraulic resistance and prevent omental attachment, resolving outflow failure.

A leaf spring member contacts a flexible medicine reservoir to detect fill level changes through mechanical deformation.

A resilient drug delivery container uses elastic force and a flow sensor to regulate medication expulsion through an outlet port.

A wearable peritoneal dialysis system recirculates and regenerates dialysate using a replaceable cartridge with ion-selective membranes.

A simulated body tissue model embeds fabric layers within silicone rubber to mimic human skin structure.

A wireless communication warning mechanism alerts devices to signal disruptions using optical or acoustic indicators.

A fluid level sensor detects canister fullness via electrical conduction and transmits status wirelessly using NFC circuitry.

Porous polymer coatings on mesh substrates shield cells from immune rejection and biofouling while maintaining sufficient oxygen and nutrient transport.

A single-disk septum integrates a rigid support structure to prevent tearing and seal failure during repeated medical device connections.

Merges concentric heat exchanger, gas exchanger, and arterial filter to reduce priming volume and circuit complexity in cardiopulmonary bypass systems.

Segmenting adhesive into micro-drops via multiple conduits reduces curing time and prevents catheter migration.

A rotating tank channels blood along its wall to form a layer for direct gas contact.

Replacing steel wire with an aluminum insert allows nursing scissors to cut the tip while maintaining structural integrity for accurate fluid deposition.

Differential thermal expansion between inner and outer layers compensates for viscosity changes to maintain stable flow rates across varying temperatures.

A modular pharmaceutical dispenser separates evaluation electronics from the liquid reservoir to simplify cleaning and reduce production costs.

Segmented arc frames with universal locking structures assemble into variable ring sizes, accommodating diverse body shapes without requiring separate devices.

An implantable magnetically driven infusion pump delivers medical agents via external magnetic field actuation.

Varying septum thickness and relief cuts prevent tearing at the slit, maintaining seal quality under pressure differences.

A wound therapy controller detects stabilizing structure collapse via fluid flow path pressure changes to adjust negative pressure settings.

A drive screw mechanism moves a plunger within a barrel to dispense medication directly through a needle.

An ingestible capsule measures body temperature to trigger drug release.

Lateral extension parts in the periphery section resist torque loads from vibration to prevent peeling of the self-retaining device.

A dual-lumen negative pressure wound therapy system uses independent pressure sensors to monitor fluid flow paths and identify blockages.

An integrated airway forms an interference fit in the base channel, eliminating separate sealing components and reducing powder loss during use.