Percutaneous Transtracheal Jet Ventilation with Various Upper Airway Obstruction

Figure 1

Schematic of the experimental model. MJV, manual jet ventilator (MCS-3, Yutaka, Japan); AM, anesthetic machine (Aisys, GE Healthcare, USA); FM, flowmeter. The “Study 1” arrow indicates the direction of Venturi effect flow during oxygen flush. The “Study 2” arrow indicates the direction of flow during oxygen flush.