Tracheal Tubes TRIZ Cases

An expandable esophageal probe uses optical sensing and tissue contact near the larynx to measure cardiac output without invasive arterial catheters.

A constant-force spring and expandable membrane let one endotracheal tube fit different trachea sizes while reducing sizing errors and tissue injury.

Pressure oscillations driven by a hospital vacuum fluidify and drain mucus while avoiding traumatic coughing and bronchial wall collapse.

A dual gas path and switching mechanism enables mode changes without swapping patient interfaces, reducing conduit complexity during respiratory support.

A rotatable cap directs oxygen during intubation, then inflates dual cuffs above and below the vocal cords to improve placement and reduce trauma.

A radial side opening lets the breathing gas filter be exchanged during artificial ventilation without interrupting respiratory gas flow.

A flexible mask with a rigid viewing window and instrument ports improves procedural access while containing aerosols around the patient's mouth.

A button-actuated tube support enables one-handed stylet disengagement and controlled advancement during intubation, reducing trauma and loss of view.

An occluding endobronchial catheter isolates lung segments to measure flow, oxygen saturation, and collateral ventilation during assisted ventilation.

A gas-jet exhalation detector mechanically switches bi-level airway pressure, avoiding electronics and batteries for portable disposable use.

A separate closure lets users block airflow for speech without touching the filter, keeping the HME cleaner while maintaining filtration and comfort.

An actively steerable deformable guide rod helps align and advance an endotracheal tube in difficult airways with fewer attempts and less assistance.

A triple-lumen PTFE jet catheter uses a centering assembly and flex tip to protect pressure and CO2 monitoring while preserving surgical access.

Exhalation pressure automatically closes the speaking valve, enabling hands-free speech while balancing easy activation and unintended closure.

AI reads chest X-rays to detect endotracheal tube misplacement early, helping prevent unplanned detachment and one-lung ventilation.

An asymmetric cannula with a medicament port maintains oxygen flow during intubation while preserving nare access for airway instruments.

Heat-actuated TCP tendons steer and stabilize an intubation arm to improve precise airway navigation and reliable tube placement.

A locking flange and radial locking element secure the endotracheal probe quickly while resisting leaks and disconnection under liquid ventilation pressure.

An oral airway interface routes oxygen delivery and CO2 sampling through the mouth, avoiding nasal constraints and reducing airway reflex issues.

Localized heating of absorbent material helps respiratory humidifiers reach humidification conditions faster while reducing spill risk from large water reservoirs.

A baseline difference between inspiratory and expiratory inert gas corrects ventilation leaks and measurement errors during FRC determination.