Medical Devices TRIZ Cases

An on-board camera and image processor verify aspiration, dispense volumes, and pipette immersion to protect assay accuracy.

A single-tube catheter frame uses zoned triplex cut patterns to control flexibility and simplify fabrication for tortuous navigation.

Timed pump deactivation limits leak alarms and extends battery life.

A buffered dialysis liquid enables extracorporeal CO2 removal, continuous pH adjustment, and acid-base stabilization across a membrane.

Composite layers separate tissue integration from removal, letting cell encapsulation pouches peel away with less trauma.

A 45-135° guide separates handle movement from catheter insertion, helping users maintain hygiene and avoid urine spillage in toilet spaces.

This case uses angled insertion and rotation to lock a replaceable cartridge onto a reusable drive unit for intuitive patch pump use.

A flexible snap cap shields the activation button, preventing accidental catheter deployment while stabilizing the pump for filling.

A calibration load cell compares weigh-plate outputs to improve APD fluid tracking without relying on unverified measurements.

The thermally responsive catheter expands its distal lumen for thrombus aspiration after navigating narrow cerebral arteries.

A dual-nostril introducer uses columella engagement to position dispensing elements accurately across diverse users.

A controller links liquid-bottle weighing with Bluetooth and Wi-Fi to improve real-time measurement and remote patient safety monitoring.

A sealed inhaler uses moisture barriers and airflow-assisted dose dispersion.

An integrated catheter housing secures placement and flags shifts without radiographic imaging.

A PD system uses fluid pressure readings to detect pump actuator home position, simplifying hardware, setup, and maintenance.

Periodic PD effluent samples and optical glucose sensing support frequent membrane assessments with less labor during treatment.

Brain-wave feedback adjusts virtual or real representation spaces to relieve fatigue, increase relaxation, or improve immersion.

A bioelectric stimulator uses controlled electrical signals to precisely regulate protein expression in target tissues.

Intelligent glasses integrate detection and treatment components to reduce waiting time while maintaining treatment effectiveness for mental health issues.

Rounded neovaginal prosthesis with drainage orifices eliminates skin graft complications and minimizes dermal scars.

Multilayer polymer coatings on self-expanding nitinol mesh impeller housings prevent blood hemolysis by minimizing friction during percutaneous insertion.

Segmented composite material delivers local anti-infective agents to reduce infection risks without increasing manufacturing complexity.

A hydrophilic coating transitions to an activated state upon immersion, providing lubricity for smoother insertion of subcutaneous vascular access devices.

A bioabsorbable polymer sleeve encapsulates pharmaceutical pellets to enable controlled timed release of hormones like testosterone.

Modulating blood return flow rates based on vessel compliance minimizes pressure spikes that cause infiltration while maintaining collection efficiency.

Protrusions engage coil apertures while anchoring elements secure the device to garments, maintaining alignment stability during patient movement.

Sealing sleeve applies radial pressure to soft cannula, resolving sealing reliability and manufacturing complexity trade-offs.

An integrated clutch assembly uses deflectable features to provide tactile and audible feedback during dose setting.

A low-profile external bolster secures gastric tubes via a friction-fit cap design.

Segmented chambers and a rotating mechanism enable precise subcutaneous depot placement while minimizing tissue trauma.

Replacing subjective visual bubble inspection, the device measures CO2 concentration and pleural pressure via sensors to confirm proper tube positioning.

A pre-raised fluid piston moves downward as closure insertion increases internal pressure, minimizing gas volume and preventing foam formation.

A detachable medicinal liquid pack uses a stretchable bottom surface to align the vibration mechanism with the mesh portion.

Integrated counter tracks emptied substance containers while the pivotable cap ensures safe operation of dual insertion mechanisms.

A safety needle housing uses a protection flap and securing element to enclose the needle tip within a channel.

An embedded flexible heating element warms fluids in medical tubes, resolving compatibility issues across varying diameters.

Segmented tracking uses visual markers to correct inertial navigation drift, resolving coarse GPS resolution limits while maintaining portability.

A portable applicator employs a sponge wiper and wringer-saturator to prevent dripping and ensure uniform coverage of insect repellents.

A dry powder inhaler lock mechanism with a spring-loaded push element ensures accurate blister peeling.

OLED display resolves limited LED clarity by presenting detailed operational state data.

Segmented protective sleeves held by magnetic coupling prevent handle contamination during frequent needle changes.

Pressure-responsive valve prevents blood backflow into the inner cavity, reducing saline delivery and fluid overload during ablation procedures.

Segmented drainage pathway with dynamic flow control valve resolves manual operation complexity while maintaining siphon efficiency.

A self-sealing connector uses a resilient member around a hollow pin to create a continuous seal.

Enclosed driver mechanism replaces manual compression to eliminate environmental interference and ensure stable, accurate drug delivery.

Contacting the crease between blister pockets and surface distributes driving force, preventing deformation while ensuring accurate indexing.

A portable ultrasonic nebulizer atomizes liquid medication into a fine mist using a high-frequency piezoelectric oscillator and absorbent wick.

A subcutaneous graft-port system featuring a fluted guide for angled needle insertion and a tapered seat for secure access.