Respiratory Masks TRIZ Cases

A CPAP valve and venturi arrangement redirects exhaled gas flow to prevent CO2 buildup when pressure drops below 3 cm H2O.

A hollow breathing mask structure uses a bi-stable membrane to open and close an access port for filler insertion.

A separator feature shields water droplets from the breathing gas stream, preventing liquid carryover into the patient interface.

Angled port capnography fitting slides into inhalation masks to resolve seal compromise and user handedness constraints during gas sampling.

Segmented nasal dam design provides pressurized ventilation via elastic sealing, eliminating apenic periods during oral surgical procedures.

Merging support and seal into one loop component resolves the trade-off between sealing effectiveness and device complexity in respiratory therapy.

An ultrasonic gas sensor detects human inhalation to trigger oxygen delivery only during breathing cycles.

A nasal pillow uses a rigid inner support structure within a softer outer casing to maintain shape stability.

A nasal plug stop structure surrounds the gas outlet to prevent condensed water entry.

Segmented nozzles and a rebound chamber direct gas rearwardly, maintaining stable concentration while improving comfort in open mask structures.

A gas delivery apparatus uses sensors and a control unit to adjust flow rates for maintaining therapeutic concentration at the respiratory interface.

An inhalation system pre-heats solutions to 35-40°C using a combined heating chamber, improving bronchodilation and reducing therapeutic agent losses.

Segmented oxygen masks store exhaled gas in an upper reservoir to prevent dilution and wastage, while bottom vents direct CO2 away from the airway.

Dynamic air switch manages continuous positive airway pressure mask airflow, reducing exhalation resistance and improving therapy compliance.

Segmented elastic band and chin structure stabilize breathing tubes on infant heads, reducing slippage and skin pressure sores.

A punctured membrane at the outlet resists filling material flow while allowing gas escape during cavity insertion.

Curvature sensor detects cannula displacement and triggers an actuator to cut oxygen flow, preventing fire hazards from uncontrolled leakage.

An oxygen device uses a melting detector wire in the breathing air hose to stop gas supply when fire ignites, preventing flame spread.

A respiratory mask connector uses a ball-socket joint to allow pipe rotation.

A ventilatory support system delivers mechanical breaths based on real-time breathing pattern analysis.

An asymmetric mask design minimizes dead space volume and prevents gas rebreathing while maintaining clear animal vision.

Ribbed tubular bases in nasal pillows maintain seal contact with nostrils, resolving headgear tension trade-offs that cause uncomfortable pressure.

A CPAP apparatus adjusts air pressure rise time to maintain patient comfort during sleep therapy.

A manifold mixes oxygen with ambient air before humidification to ensure safe gas delivery.

Segmented lumens isolate nitric oxide from co-delivered oxygen, reducing dose dilution and improving therapeutic accuracy.

Segmenting headgear and nozzle functions allows the device to maintain seal reliability while eliminating patient discomfort caused by excessive tension.

A pneumatic block merges distinct blower sub-assemblies onto a common chassis to direct therapeutic airflow through structured paths.

An open mixing chamber segments the gas delivery path from pressure containment, preventing unintentional CPAP while maintaining stable oxygen levels.

Segmented chambers in an inhalation mask direct therapeutic gas exclusively through the mouth, eliminating intra-oral discomfort for pediatric patients.

A patient valve integrates linear or dial manometers to measure inhalation and exhalation pressures within a single housing unit.

Parallel adsorbers remove carbon dioxide from exhaled gas, allowing purified oxygen recovery that reduces overall consumption and waste.

Integrated head immobilizer holds bag valve mask in place using hook and loop straps, eliminating manual stabilization during patient transport.

Helical rib structure embeds wires to detect respiratory gas parameters along the tube exterior, resolving limited monitoring location flexibility.

Deformable orientation structure transitions between states to secure an oral appliance post, resolving leakage caused by inadequate mask fit.

Segmented nasal packing stabilizes the septum and floor while leaving a central gap for airflow, resolving obstruction discomfort.

Replacing pressure algorithms with CO2 sensing resolves ventilator disconnection detection failures caused by circuit leaks and high-resistance tubes.

A ventilator controller adjusts base pressure using respiratory flow signals to maintain upper airway stability.

Adaptive respiratory mask distributes pressure via forehead and cheek modules to resolve airtightness versus binding force trade-offs.

A carousel with a helical ramp holds medical device hoses, allowing trapped air to escape and ensuring complete immersion in the cleaning solution.

Integrating a sensor into the active control element eliminates separate wiring, reducing circuit complexity while maintaining closed-loop temperature accuracy.

A patient gas delivery mask uses a flow disrupter to generate a turbulent plume for improved oxygen distribution.

A flow generator processor generates time-based and event-based messages to enhance user interaction with respiratory devices.

A CPAP apparatus lowers pressure during expiration by a fixed relief amount to facilitate easier exhalation.

A modular pulmonary treatment system uses a venturi device and interchangeable adapters to deliver gas and aerosolized medication through a single interface.

Rotary dial controls simplify navigation and parameter adjustment in CPAP devices, improving usability in low light conditions.

A mask cushion features a non-adhesive face-contact region paired with a transparent sealing zone to reduce wear.

A pen-like optical tool projects sizing markers onto a patient's face for non-contact measurement.

A nasal cannula manifold connects to a gas tube via a swivel joint that enables relative rotation between the components.