Patent ID: 6830621
Filing Date: 2004-12-14
Classification: B01J,B01L,C40B,G01N,Y10T

Abstract:
A liquid discharge apparatus for individually discharging probe liquids containing mutually different probes and producing a probe carrier bearing probes of plural kinds capable of specifically combining with a target substance and fixed in different positions on a carrier, the apparatus comprising:a member having a pair of mutually opposed faces; and a liquid discharging portion, the number of which corresponds to the number of kinds of said probes, including: 1) a liquid holding portion for holding the probe liquid; 2) a supply opening for supplying the probe liquid to said liquid holding portion; 3) a liquid discharging nozzle for discharging the probe liquid; and 4) a flow path connecting said nozzle with said liquid holding portion, wherein a nozzle opening arrangement face, in which a plurality of openings of nozzles are arranged, is provided on one of the pair of mutually opposed faces of said member, a supply opening arrangement face, in which a plurality of liquid supply openings to said liquid holding portion are arranged, is provided on the other face of said member, and said flow path of each liquid discharging portion is provided as a path that passes through said member, wherein said member having said pair of mutually opposed faces has a laminated structure composed of a first plate-shaped member in which said nozzles are formed, and a second plate-shaped member in which said plurality of liquid supply opening are formed at a predetermined pitch of arrangement, and wherein the pitch of arrangement of the supply openings in said supply opening arrangement face is larger than the pitch of arrangement of the openings of the nozzles in said nozzle opening arrangement face.