Article Figures & Data
Figures
- Fig. 1.
The studied heat and moisture exchangers (HMEs). Top left: Standard HME used in anesthesiology and intensive care. Top right: Stomvent, with integrated adhesive. Bottom left: Provox Normal. Bottom middle: Rplus. Bottom right: Lplus.
- Fig. 2.
The Provox Normal (left) uses a spring mechanism for the speaking valve, whereas Rplus uses the recoil of the hygroscopic foam material.
- Fig. 3.
Humidity and temperature of tracheal gas from the moment of covering the open stoma with a Provox Normal heat and moisture exchanger. Equilibrium is usually reached within one minute.
- Fig. 4.
Example of temperature and humidity of tracheal gas over 2 breaths. The total breath duration is defined as the time between the starts of 2 successive exhalations. The inspiratory time and expiratory time are approximated as the time between the midpoints of inhalation and exhalation.
