Application of the laser photoacoustic leak detector for tightness control of lung and tracheobronchial sutures
V.A. Kapitanov1, E.B. Topol’nitskiy2,3, Yu.N. Ponomarev1
1V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, 1, Academician Zuev square, Tomsk, 634021, Russia
venedikt@iao.ru
2Autonomous regional state health agency "Tomsk Oblast Clinical Hospital", 96, str. Ivan Chernyh, Tomsk, 634063, Russia
3Siberian state medical university, 2, Moscowski Trakt, Tomsk, 634050, Russia
Keywords: respiratory system, leak tightness of surgical suture, sulfur hexafluoride, laser photoacoustic leak detector
Abstract
The simple and effective method (technique) of the leakage test of the respiratory system using medical ventilation apparatus and laser photoacoustic leak detector “LaserGasTest” was suggested. The technique was tested in model experiments and experiments on animals. Sulfur hexafluoride is inert and biologically harmless gas and its concentration in medical ventilation apparatus does not exceed 5000 mg/m3 (0.077%). The proposed technique provides precise location and size of leakage.
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