公开(公告)号：WO0119438A9

公开(公告)日：2002-09-26

申请号：PCT/US0025145

申请日：2000-09-13

Applicant: SHEFFIELD PHARMACEUTICALS INC

Inventor： PAVKOV RICHARD M ,  ARMER THOMAS A

IPC: F16L55/00 ,  A61M11/02 ,  A61M15/00 ,  B01D61/16 ,  B01D71/16 ,  B01D71/26 ,  B01D71/36 ,  B01D71/64 ,  B01D71/68 ,  B01J4/00 ,  B05B1/32 ,  B05B15/00

CPC classification number: B05B15/008 ,  A61M15/0091 ,  B05B1/323

Abstract: A porous material valve (18) is placed in the fluid conveyance path of a fluid dispensing apparatus (2). By selecting a specific thickness of the porous material, the size of the pores, the pore volume, and the hydrophillic/hydrophobic balance of the material, a predetermined activation/closure pressure and flow rate is achieved.

Abstract translation: 多孔材料阀（18）被放置在流体分配装置（2）的流体输送路径中。 通过选择多孔材料的特定厚度，可以获得材料的孔的尺寸，孔体积和亲水/疏水平衡，预定的活化/封闭压力和流速。