초록 ▼

An apparatus for use in conjunction with a multi-dose inhaler which includes a novel valving mechanism and an expansion chamber which permits medication to be delivered to the patient without the need for precise timing of canister actuation. The apparatus also includes a filter unit for filtering t

An apparatus for use in conjunction with a multi-dose inhaler which includes a novel valving mechanism and an expansion chamber which permits medication to be delivered to the patient without the need for precise timing of canister actuation. The apparatus also includes a filter unit for filtering the patient's exhaled breath and also includes a unique baffling arrangement which functions to decrease average aerosol particle size for better targeting the desired lung area. In one form of the invention, the valving mechanism comprises an apertured elastomeric valve member having a top pivot bar which uniquely pivots on a pair of pivot posts provided on proximate the upper margin of a novel valve member engaging, generally planar base.

대표청구항 ▼

[ I claim:] [1.] A fluid delivery apparatus comprising:(a) a housing having interconnecting first and second chambers;(b) means connected to said housing for introducing a fluid into said first chamber of said housing; and(c) flow control means carried by said housing for controlling passage of flui

[ I claim:] [1.] A fluid delivery apparatus comprising:(a) a housing having interconnecting first and second chambers;(b) means connected to said housing for introducing a fluid into said first chamber of said housing; and(c) flow control means carried by said housing for controlling passage of fluid between said first and second chambers, said flow control means comprising:(i) a base having an opening therethrough;(ii) pivot defining means connected to said base proximate said opening comprising a pair of outwardly extending pivot posts defining a pair of spaced-apart pivot points; and(iii) a valve member pivotally movable relative to said pivot-defining means between a first position wherein said valve member is superimposed over said opening to a second valve open position wherein said valve member is spaced apart from said opening to a second valve open position, said valve member including a pivot arm having end portions pivotally supported by said outwardly extending pivot posts.