Respiratory Masks TRIZ Cases

A headgear assembly secures fluid tubes via dedicated members that redistribute weight from ears to the head.

A ventilation aid uses a flow-path pressure sensor to detect spontaneous breathing activity in premature infants.

A mask grip identification system compares real-time pressure distribution data against stored reference patterns to detect specific hand placement techniques.

Segmented flocked foam cushions apply local quality principles to balance sealing stability with reduced skin irritation, improving respiratory mask compliance.

Reducing the cannula radius below 180 degrees improves nasal coupling to prevent cross-contamination while maintaining structural integrity.

Relief channels extract excess adhesive from the heat transfer path, reducing thermal insulation and improving temperature control accuracy.

Thermoforming bonds foam and fabric layers to create a unitary laminate that provides structural rigidity without external support mechanisms.

Rolling forehead support shaft adjusts mask distance to reduce pressure points and improve stability.

A tactile sizing gauge measures facial landmarks to identify the correct patient interface dimensions.

Segmented contacting members stabilize the seal assembly at specific muscle junctions, reducing gas leakage and discomfort.

Cluster analysis groups pressurized gas flow rate parameter values to identify the zero subject flow rate, correcting noise-induced errors in leak estimation.

An automated resuscitation device uses timed fan cycles to deliver oxygen while venting stale air, eliminating the need for manual operator intervention.

A subject interface heater adjusts gas temperature using a baseline offset to maintain comfort.

A hybrid single-limb patient circuit uses a check valve and pneumatic manifold to direct breathing gases in one direction.

A remote catalytic sensor receives gas via delivery and return ports, resolving accessibility constraints while maintaining measurement precision.

A nasal cannula with a sensing lumen and remote pressure sensor detects breathing patterns despite high flow turbulence.

Silicone gel filling in elastic plastic covers resolves allergic reactions from polyurethane while allowing variable stiffness for user comfort.

A surgical oxygen mask integrates paper filters on front and side openings to separate exhaled breath from the environment.

A nasal intermittent mandatory ventilation control system automatically adjusts inspiratory and expiratory airflow using real-time pressure sensors.

A patient interface with a thin nasal bridge section reduces pressure sores and side leakage while maintaining seal effectiveness.

An air delivery conduit integrates anti-crush nodules and a textile substrate to prevent occlusion while ensuring comfort in positive airway pressure therapy.

An asymmetric mask frame resists longitudinal deformation to minimize gas leakage and noise during side sleeping for improved comfort.

A gusseted cushion allows relative movement between the mask frame and face to distribute pressure over a larger surface area.

A flexible ear cuff secures oxygen tubing to a patient's head using nested structural geometry.

Surrounding gas flows with a thermally balancing liquid prevents aerosol redrying and blockages in small cross-section tubes.

A triboelectric sensor detects relative movement between a patient interface and face to generate electrical signals.

A micro pump integrates directly into a sleep apnea mask to generate positive pressure airflow without external hoses.

Magnetic coupling elements replace mechanical straps to immobilize the mask, eliminating skin irritation and pressure sores from prolonged wear.

A mask cushion uses an asymmetric recess to expand under pressure.

Electronic valves and sensors measure breath flow rates to provide haptic feedback for guided breathing exercises.

Extend-retract adjustment sections in this nasal pad modify the spacing between nasal plugs, eliminating the need for multiple fixed pads.

Collapsible air tubes in a flexible interface prevent obstruction during sleep, reducing skin irritation and improving therapy compliance.

Segmenting peripheral and nostril sealing zones reduces pressure trauma while ensuring reliable CPAP therapy delivery.

An open-bridge oxygen mask directs a turbulent plume through a central diffuser, preventing exhaled air mixing while eliminating claustrophobia.

A gas flow control structure for respiratory masks integrates an anti-asphyxia valve and vent using a flexible membrane.

A breath-actuated nebulizer uses a movable baffle to create a Venturi effect during inhalation, reducing medication waste and caregiver exposure.

A fluid coupling valve member uses structural protrusions to pivot smoothly and prevent sticking against the housing interior.

Heated humidifiers deliver warmed oxygen at 15 litres per minute, reducing respiratory mucosa irritation from cold dry gas.

An open-circuit nasal interface eliminates dead space and exhalation resistance by using the Venturi principle to entrain ambient air.

Segmented cushion pockets filled with low-viscosity medium move independently against the faceplate to minimize skin irritation.

An accelerometer detects head orientation to adjust gas pressure, resolving the trade-off between airway patency and patient comfort during sleep.

Straight aligned passages eliminate void volumes that dilute exhaled breath, preserving capnographic waveform fidelity.

A support member with compression members that buckle under load to distribute contact pressure across a patient interface.

A nasal cannula flame detector breaks the power circuit via a burnable wire conductor to prevent oxygen-fed fires.

Segmented nasal pillows control expiratory flow to reduce noise, resolving the trade-off between sealing reliability and device complexity.

A nasal high flow therapy system determines the air and oxygen mixture flow setting using peak inspiratory flow data from a previous ventilation mode.