| 摘要 |
A ventilation apparatus ( 1 ) for pulmonary scintigraphy, having an inhalation collector ( 10 ) to which an element of inhalation ( 20 ), a feeding duct ( 31 ), defining a flow of marked aerosol ( 55 ), and an outlet duct ( 32 ), for disposal of exhaled flow and any aerosol surplus, are connected. The feeding air may be of bi-level type, whereby the air flow rate when breathing out is low, even if always positive. The collector ( 10 ) has a first interposition element ( 21 ) located at the connection with the air feeding tube ( 31 ) that only allows inlet flow towards the patient. A second interposition element ( 22 ) is located at the connection with outlet duct ( 32 ). The presence of one-way valve/s ( 21,22 ) allows to breath the marked aerosol in the bronchial branches of the patient ( 20 ) in a way completely natural following the physiologic respiration and avoiding hyper-accumulation of marker in the largest bronchial branches. Scintigraphy is allowed also during a Non Invasive Mechanical Ventilation, carried out through the ventilation apparatus ( 1 ). |
