Segmented heating elements maintain a constant temperature difference with the dew point, preventing condensation and rainout in medical breathing circuits.
Pneumatic feedback loops enable dynamic oxygen flow adjustment in portable devices, resolving the trade-off between user mobility and precise flow control.
Nested tubes secure a containment bag to isolate smoke, reducing exposure in shared environments.
Segmented surface electrodes extract cardiac interference from respiratory signals, verifying synchrony to ensure accurate ventilatory assist delivery.
A method compensates inert blood soluble gas recirculation during repeated rebreathing tests to determine pulmonary blood flow accurately.
Double wall multi-lumen tubing separates waste gases and liquids via hydrophobic filters to resolve NPWT adaptability limits.
A cylinder-piston ventilator uses pneumatic actuation to deliver precise ventilation gas volumes.
A reusable mask uses a heated microtube to kill viruses in inhaled air.
Pulse oximeter plethysmography derives patient effort and cardiovascular parameters from photodetected light absorption signals.