Medical Devices TRIZ Cases

Removable photosensitizer substrates enable continuous singlet oxygen generation and nitrite inhalation without complex professional maintenance.

Axial flaps rotate the cover axis to advance the blister strip, eliminating complex coupling mechanisms and reducing construction complexity.

Recursive multivariate time-series models predict glucose levels and adjust insulin infusion rates automatically.

A biosensor device integrates motion measurement sections with analyte detection to record living activity data alongside blood glucose levels.

Segmenting power supply and control into separate arm-mounted modules eliminates restrictive cables, reducing operator fatigue during extended sessions.

A dispensing device uses a cam drum with linear and helical profiles to convert thumb pad motion into precise dose delivery.

A modular blood product storage system uses independent agitator units for precise temperature regulation and movement control.

Hybrid energy harvesting extends battery life in wetness detectors by converting radiofrequency and thermal energy during treatment.

A wearable infusion device uses a resettable lockout mechanism to disable actuation when the reservoir empties.

A needle hub fluid-draining portion captures spilled medicine during air removal.

An optical system differentiates blood and tissue reflections to monitor tube positioning during infusion without requiring blood flow.

A flow control apparatus uses a sensor and software subsystem to initiate automatic component verification upon loading a feeding set.

Lateral bearing surfaces guide user lips to prevent teeth obstruction and ensure a good seal.

A magnetic drive system moves an injection stopper without physical contact.

A controller correlates capacitance information from a conductive drug delivery member to determine its precise insertion position within the patient.

A peelable cover uncovers a vented filter on the NPWT drape, allowing controlled airflow to prevent tube blockages from fluid buildup.

Segmentation separates a base unit from a removable attachment module, accommodating pets with unequal stride lengths.

A hemostasis valve device incorporates a divergent deaeration pipe with an opening and closing portion to selectively discharge bubbles from the fluid channel.

An encapsulated bridge with an absorbent layer manages fluids while maintaining reliable reduced pressure at the tissue site.

Universal connectors with elastomeric strain relief structures minimize kinking and turbulence, resolving trade-offs between adaptability and system complexity.

Removable electro-optical core subassembly enables full-spectrum LED light simulation for sleep therapy.

A fluid reservoir collar retains liquid in an annular region to maintain consistent aerosol dosage across varying device orientations.

A lymphangiogenesis inducing device uses a foldable inner needle to create minor wounds in subcutaneous tissue for implant indwelling.

A two-phase vaginal lavage delivers watery and oil solutions sequentially via a cannula to ensure proper distribution.

A disposable combination valve and filtration unit regulates insufflation gas flow during laparoscopic surgery.

Dual battery units in a medical pump switch automatically when one fails, preventing sudden stoppages caused by undetected power supply abnormalities.

Segmented infrared detection filters ambient light interference to ensure accurate fluid delivery in medical pumps.

A medical canister uses a splash baffle and absorbent valve to restrict fluid permeability, preventing operator exposure to suctioned bodily fluids.

Segmented needles in a conical shape resolve the contradiction between dense coloring and smooth transitions.

Hyperelastic plait matrix layer embedded in braided wire mesh resolves pushability and flexibility trade-offs in catheter shaft design.

Portable negative pressure wound therapy system uses surface cross-linked superabsorbent particles to solidify liquid waste within a disposable packet.

A mechanical bellows system with expandable absorbent material generates consistent negative pressure for wound treatment.

A percutaneous access device uses a rubber bung seal to connect intracranial catheters while preventing microbial ingress.

A fluid collecting sheath with apertures and a channel engages an endoscope shaft to capture liquid, preventing hazardous leakage during procedures.

Depressurizing surfactant solutions through nozzles to induce cavitation and form stable micron-scale bubbles.

A disposable and reusable differential pressure flow sensor assembly calculates fluid rates by measuring pressure differences across a restrictor element.

A deformable reservoir zone controls cosmetic composition flow via elastic pressure variations, preventing leakage while ensuring uniform distribution.

A segmented visual indicator moves with the actuator to reveal specific status text, eliminating confusion from ambiguous color cues on the switch.

Optical, magnetic, or capacitive sensors detect needle position to prevent device damage during refilling.

An insufflation device integrates a gas sensor to monitor abdominal cavity composition during endoscopic procedures.

A dialysis machine directs expelled heated air around dialysate containers to raise fluid temperature.

Segmenting the pump and needle unit allows temporary disconnection, preventing insulin waste during showering while maintaining continuous delivery.

Light-based sensors measure distance to a movable wall inside expandable reservoirs for precise fluid level detection.

Castellated ferrule relief pockets compensate for dimensional tolerance stack-up, preventing gasket slippage and reducing push-fit force.

A pocketable infusion pump guard immobilizes the cap tab to prevent accidental reservoir removal during portable use.

An engagement bump on a resilient member prevents accidental disconnection and rotation of luer-type connectors.

Electrode-based detector identifies conductive fluid intrusion in catheters, triggering coolant reduction to prevent device breaches.

Buoyancy forces press a flexible pouch against plasma bags, accelerating heat conduction while isolating the product from external contamination risks.