Medical Devices TRIZ Cases

A controller calculates and adds a custom red blood cell additive solution volume to achieve target hematocrit levels.

A flexible transdermal drug delivery system integrates a power supply and electrodes to conform to body contours for standalone therapeutic agent application.

Disposable elastic membrane seals tattoo machine grip, preventing ink contamination and cross-infection between clients.

A portable negative-pressure wound therapy system integrates a pneumatic pump and communications device for wireless data transmission.

Channels opposing heating elements prevent residue buildup and toxicant inhalation risks.

A nasal aspirator accessory uses compressed air to create a Venturi effect, generating negative pressure for mucus aspiration.

A locating finger on tubing engages a pump member to verify correct seating, preventing misalignment and inaccurate fluid delivery.

An annular shim resists peeling at the adhesive patch perimeter, extending wear life by seven days without compromising skin comfort.

Negative fluid pressure draws tissue uniformly against a porous adhesive layer, resolving retention challenges on contoured skin without mechanical pinching.

Pneumatic pressure drives powder through nozzles to de-agglomerate clumps, ensuring complete dosing despite humidity absorption in multi-dose storage.

A deformable fluid chamber in a nebulizer reservoir accommodates volume changes through elastic expansion.

A segmented nasal piece uses dual flared sections with distinct flare angles to accommodate varying nostril sizes.

Sealed chambers in this dressing prevent clogging and cushion tissue during negative pressure wound therapy.

An expandable dielectric balloon capacitively couples radiofrequency current through ionized gas to ablate endometrial tissue.

Periodic red light and pink noise calm infants without disrupting circadian rhythms.

Porous hydrogel membrane enables rapid expansion of superabsorbent material, eliminating frequent hospital visits for intragastric balloon inflation.

Wireless signaling between a stationary monitor and portable infusion set triggers alarms upon unauthorized removal, preventing theft.

Segmented vacuum and instillation modules join through standardized interfaces, resolving the trade-off between modular flexibility and operational complexity.

An integrated intraluminal device merges multiple reservoirs and actuation systems to deliver drugs precisely while reducing handling time.

A sealed disposable container delivers pre-packaged cleaning liquid directly to a nebulizer membrane for hygienic maintenance.

A disposable vacuum pump uses a membrane galvanic barrier to isolate the piston rod from driving electronics.

Infusion device algorithm adjusts flow rate thresholds to detect syringe emptiness using real-time sensor feedback.

Rotating power plug improves plugging convenience while the ultrasonic module atomizes oil directly in the container, eliminating reloading steps.

A urinary relief device uses a suction sub-system to pull fluid from a tray cavity against gravity, reducing emptying frequency for aircrew.

A cylindrical tube conceals the injection pen to reduce visual anxiety while vibration motors minimize needle pain during administration.

A pistol-style pill delivery device uses a spring-loaded eject pin to propel medication into an animal's mouth.

Vacuum capping eliminates residual air in fluid reservoirs, preventing contamination risks and hydraulic blockage during actuation.

Embedding an RFID tag inside the vessel wall protects the component from damage and separation while enabling reliable supply chain tracking.

Segmented sensor wire maintains dialysis circuit sterility while providing continuous analyte data for protocol adjustment.

A medical device needle receiving port uses an intermediary stop member to limit penetration depth and protect the hypodermic needle tip from damage.

Segmented cycler systems with disposable sterile circuits prevent overpressurization risks while maintaining precise fluid balance management.

Automated closed-loop system using integrated catheter sensors and fuzzy logic algorithms to maintain target blood chemistry ranges.

A catheter structural support member uses variable density to resist compression and bending forces along its length.

A sleep stimulation system calculates an indicator combining slow wave activity and architecture metrics to quantify restorative effects.

A magnetic sleep trolley system moves an agitator inside a natural habitat chamber to disrupt rodent sleep without physical contact.

A motor-driven conveying mechanism advances a urinary catheter through a guiding hole in a sleeve assembly for precise placement.

Thermal elements in the mouthpiece deliver tactile heat cues, enabling visually impaired users to locate the device accurately without visual indicators.

Micro-peristaltic pump drives dialysate flow in a wearable belt, resolving patient mobility restrictions and infection risks from stationary dialysis.

A rotatable implantable guide tube directs drug delivery to specific brain targets through adjustable angular positioning.

A medical applicator uses a frustoconical cannula to secure and gently expel rod-like implants without lateral stress.

Segmenting the device into a reusable actuation adapter and disposable ampoule reduces material waste while maintaining precise dosing accuracy.

A controller regulates a pump output based on pressure sensor measurements within an intravenous fluid supply tube.

A medical pump sensor analyzes coil current and actuator noise to identify when the therapeutic fluid reservoir is empty or near empty.

Segmented catheter outlets deliver analgesics via elastic wall deformation responding to fluid pressure changes, enabling precise local distribution control.

Removable mouthpiece surrounds nasal dispensing head to enable buccal fluid distribution.

A pump controller manages therapy and stand-by modes using distinct visible indicators and audible alarms.

Proximal vent and exit holes maintain equal pressure in a swallowable capsule, preventing unintended medication expulsion during gastrointestinal contractions.

A microfluidic drug delivery system uses a micropump to move therapeutic agents directly into the cochlea.

Segmented conductive substrates enable precise dosage control and stable volatilization, resolving coating cracking issues in vapor cartridges.

Segmented channels and unique indicators on a central frame organize tangled IV lines for quick identification.