Respiratory Masks TRIZ Cases

Segmented patient interfaces with non-sealing nasal prongs reduce obtrusiveness while maintaining pressure reliability for sleep apnea therapy.

A ventilator system estimates patient airway flow using remote sensors and a proportional-integral compensator to stabilize measurements.

Region-specific wall stiffness in a corrugated medical tube improves drain-back of condensate, preventing accumulation and maintaining thermal insulation.

A fully flexible respiration helmet uses a counterweighted neck collar to enable single-operator fitting and removal.

A ventilator system dynamically adjusts inspiratory pressure to deliver target tidal volume without impeding patient respiratory effort.

A CPAP humidifying tank uses a flow-dividing section and facing section to generate tumble flow for air-water interaction.

A custom cushion support assembly with a contoured surface deforms to match the patient's sub-nasal area, resolving air leakage issues from poor alignment.

A patient interface pad with a fibre layer forms a skin seal while releasing comfort substances to reduce pressure marks.

A pressure support device delivers breathing gas at a patient-selected comfort pressure before transitioning to prescribed therapy levels.

Segmented socket and sleeve design eliminates slotted joint leaks while radial extensions provide large release surface for patients.

Soft cannula conducts gas through sealing surfaces to maintain accurate pressure sensing without invasive prongs causing irritation.

Segmenting the cushion and anterior wall resolves sealing reliability versus patient comfort while reducing bulk and noise.

A nasal pillow gasket with a shaped lower inner surface reduces upper lip contact, improving comfort while maintaining nostril seal stability.

Automated ozone gas distribution sterilizes hard-to-reach passageways in medical devices, reducing infection risk and manual reprocessing errors.

Differential stretch in the chinstrap allows mouth opening while stable front and rear portions maintain the seal position.

Clamping sleeve mechanism allows one-handed adjustment of forehead support, resolving the trade-off between positioning accuracy and device complexity.

Nesting the heat and moisture exchange device inside the mask cushion resolves respiratory discomfort from dry ventilation air.

A facial mask with an internal support structure and external shell distributes attachment force uniformly to secure the seal around the user's face.

A positive airway pressure system uses an airflow resistor to modulate inspiratory and expiratory pressures for patient comfort.

An oral appliance integrates a gravity sensor to detect sleep position and trigger alarms, reducing apneic events by correcting posture.

An adjustable seal member moves relative to a faceplate using an integrated mechanism to optimize fit.

A CPAP nasal pillow device employs an insertion bulge and D-shaped seal to prevent sinus burning.