Process and device for aerosol generation for pulmonary ventilation scintigraphy
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United States of America Patent
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Aug 18, 1992
Issued Date -
N/A
app pub date -
Dec 29, 1989
filing date -
Aug 7, 1987
priority date (Note) -
Expired
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Abstract
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 .sup.99m Technetium 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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