Patent ID: 9527078
Filing Date: 2016-12-27
CPC Classification: B01J,B01L,Y10T

Claim Text:
1. A fluid handling device comprising: a first channel which has a first end and a second end and in which a fluid can move by capillary action; an air reservoir connected to the second end, the air reservoir being a hermetically-sealed space formed by blocking an opening of a bottomed recess with a resin film, the resin film being positioned so as to enable the air reservoir to communicate with the outside when a through-hole is formed in the resin film; an air discharge port having an opening where air passes therethrough and communicates with the outside; a second channel which communicates with the air discharge port; and a communication section which allows the first channel and the second channel to communicate with each other and which has a cross-sectional area smaller than a cross-sectional area of the second channel, the communication section having a connection section between the communication section and the second channel for preventing the fluid in the communication section from entering into the second channel by the fluid's own surface tension; wherein the first channel has a first portion starting from the communication section toward the first end and a second portion starting from the communication section toward the second end, and the first portion and the second portion have uniform width.