| 摘要 |
An analysis device (1) for analyzing a sample fluid (50) for the presence, absence or amount of an analyte in the sample fluid (50) comprises a substrate (10) having a diameter (d) having a first surface (12) and an opposite second surface (14), and has a plurality of through going channels from the first surface (12) to the second surface (14), and is at least partially provided with a binding substance specific for the analyte. The device comprises a first volume (16) in fluid communication with the first surface (12) and a second volume (18) in fluid communication with the second surface (14). The device further comprises a means (20) for generating a pressure difference over the substrate (10) to transport the fluid from the first (16) to the second volume (18) and vice versa through the channels. The device is provided with a guide (22) placed beneath the second surface (14) of the substrate (10). The guide protrudes towards bottom of the second volume (18), wherein the guide (22) is configured for allowing flow of the sample fluid (50) from the first volume (16) to the second volume (18) and vice versa, and wherein the guide (22) has an exit diameter substantially smaller than the diameter (d) of the substrate (10).
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