[Experimental study on the air streams in the paranasal sinus].
Air streams in the paranasal sinus were investigated using Nose-Sinus Model to contribute to the fundamental knowledge of aerosol therapy. The results obtained were as follows; 1. The velocity of air streams in the paranasal sinus was measured by Laser Doppler Anemometer and the visualization of streams was done by Laser Light Sheet method. 2. The amount of aerosol passed into the maxillary sinus is approximately in proportion to the sectional area of the ostium. 3. A considerable amount of aerosol passing into the sinus was noted under LLS technique applying positive pressure from the choana. From the above results, it is necessary for the effective entrance of aerosol into the sinus first to open the middle meatus wide and to add the intermittent pressure.
Maeyama
T
T
Watanabe
S
S
Haraguchi
K
K
Iwabuchi
Y
Y
Ajisaka
K
K
Ohyama
M
M
Nozaki
T
T
Nakanishi
K
K
D000336:Aerosols; D006801:Humans; D008953:Models, Anatomic; D010256:Paranasal Sinuses / Q000502:physiology*; D012123:Pulmonary Ventilation; D012212:Rheology
D000336:Aerosols