An inhalation device for use with an inhaler is disclosed. The device includes a dispersion chamber constructed for fluid communication with the inhaler and a suction chamber of variable internal volume in fluid communication with the dispersion chamber. The internal volume of the suction chamber can be increased during use, producing a negative pressure in the dispersion chamber, thereby drawing a substance to be inhaled from the inhaler into the dispersion chamber for subsequent inhalation.
申请公布号
NO981325(D0)
申请公布日期
1998.03.24
申请号
NO19980001325
申请日期
1998.03.24
申请人
ASTRA AB
发明人
BERG, ELNA;JEPPSSON, MAGNUS;MACANDREW, JOHN A.;REVELL, WILLIAM J.;ROBERTSON, PAUL A.