Respiratory Masks TRIZ Cases

A patient interface speech valve opens a flow path to the atmosphere, resolving voice muffling caused by positive air pressure in sealed masks.

A CPAP tether system links the mask and hose via a tubular connector, preventing disconnections that disrupt therapy.

Internal partition wall separates oxygen delivery and CO2 sampling spaces to prevent gas dilution and ensure accurate measurement.

Elongated oxygen delivery openings separate inflow from exhalation outflow, reducing carbon dioxide measurement error to 4 mmHg or less.

A two-color molded respiratory mask integrates a hard polypropylene body with a thermoplastic rubber buffer to provide an anti-slip grip.

A respiratory therapy device adjusts target pressure levels using a control module that monitors detected respiratory events.

A positive airway pressure system reduces pressure during inhalation to improve patient comfort.

A rotatable cylinder redirects airflow around a foam insert to enable humidification or bypass modes.

Adaptive PID control maintains accurate nitric oxide dosing across extreme flow rates, preventing system shutdowns during gentle ventilation.

Thermal expansion in the dual-material cushion reduces face contact area, resolving the trade-off between seal quality and patient comfort.

Heat moldable nose masks use flanking flanks to distribute pressure across cheekbones, resolving skin discomfort from concentrated seal points.

Airflow parameters identify respiratory user interfaces automatically, eliminating manual setup errors and ensuring accurate therapy delivery.

A respiratory mask cushion uses a frustum-shaped flap to pre-load against the face for stable sealing.

A plunger-driven barrel creates negative pressure to draw obstructing fluids from a subject's airway through one-way valves.

Interlocking rotation limiting structures constrain mask orientation relative to the support assembly, preventing tangling and ensuring a consistent seal.

A dual-pressure respiratory device uses a float mechanism to cycle between baseline and peak airway pressures.

An oscillatory relief valve captures gas bubbles to cycle pressure between baseline and peak levels, recruiting alveoli without electronic power.

Comingling anti-biofouling compounds with basic plastics creates a unified matrix that resists bacterial adhesion.

Integrated adaptor merges respiratory support and aerosol delivery, eliminating bulky separate devices that cause patient discomfort.

A shielded bite block integrates a synthetic polymer fiber mask to create a sealed barrier around the patient's respiratory tract during endoscopic procedures.

A patient interface restrictor element obstructs the exhalation port to increase flow resistance and retain moisture.

A breathing assistance apparatus uses pressure sensors and regulators to control fluid mixing ratios without expensive mass flow controllers.

Ultrasonic welding and adhesive bonding prevent disassembly while stress whitening displays aging to stop reuse.

Perpendicular aerosol injection into a nasal prong mixing lumen resolves deposition losses in ventilatory support systems.

Angled nebulizing channels prevent turbulent drug loss during continuous positive airway pressure treatment.

A medical carbon monoxide generator produces gas from solid carbon using controlled heating.

A ventilator uses a variable cycling threshold to synchronize pressure delivery with patient breathing cycles.

Composite materials resolve the tension between fixation reliability and comfort by distributing pressure across localized zones.

Acoustic sensors and cameras analyze the seal region of a respiratory interface to locate leaks, enabling replacement with a better-fitting device.

A nasal cannula assembly uses a deformable-wall reservoir to separate nitric oxide from oxygen until inhalation.

A pneumatic oxygen conserving system delivers gas via a slave diaphragm mechanism and tubing reservoir.

Segmented cushion layers with aligned thru-holes resolve manufacturing precision trade-offs, ensuring a secure seal for breathing gas delivery.

Pulse oximetry system calculates airway instability indices from SpO2 data to diagnose obstructive sleep apnea without costly overnight studies.

A respiratory therapy device characterizes connected conduits by analyzing airflow parameter relationships generated during motor operation.

Segmented foam cushions with rigid clips resolve comfort and sealing contradictions in full-face masks.

Automated sensor system monitors breathing via non-invasive audio and visual signals, adjusting oxygen flow to mitigate distress without manual intervention.

Segmenting the cradle base from the plenum base maintains therapeutic pressure while improving comfort during long-term use.

A flow therapy apparatus measures nasal passage pressure to determine individual respiratory demand.

Breathing mask with exhalation valve and pressure sensor guides user respiration to increase arterial oxygen saturation.

Piston pumps provide adjustable suction and ventilation to clear airways in newborn animals without causing tissue damage.

A nasal ventilation mask uses an inwardly curled sealing lip to form a secure interface over the patient's nose.

A controller estimates respiratory flow from pressure and blower frequency signals without dedicated sensors.

Electrical contacts detect sealing engagement on a child's face, triggering audio or visual stimuli to maintain mask retention during nebulizer treatment.

A nasal respiratory mask uses an aperture to deliver oxygen enriched air.

Evacuation ports apply vacuum pressure to generate circumferential suction, capturing waste anesthetic gases that leak from poor mask seals.

A hinged connecting member swings the forehead support to match user height.

A centralized oxygen delivery and reclamation system recycles exhalation gas via an oxygen concentrator, reducing consumption in enclosed spaces.

A pneumatic CPAP device uses patient exhaled CO2 to drive gas flow without electrical power or micro-blowers.