| 摘要 |
A disposable shielded device for producing aerosol having particles less than 2 microns in size from an aqueous colloidal suspension obtained from human serum albumen and labelled with 99mTechnetium for use in scintigraphic imaging of pulmonary function. The device includes a nebulizing chamber having a membrane of 0.1 mm to about 0.01 mm in thickness and 40 mm to about 50 mm in diameter which nebulizes the labelled substance in response to ultrasound waves transmitted thereto.
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