Patent ID: 8264674

Claim:
A specimen identification device comprising: a specimen introduction nozzle that contacts a first end of the nozzle to a sample including a specimen which exists in a specimen source to introduce said sample to a second end of the nozzle; a flow path that forms an appropriate flow of said sample supplied from the second end to identify an identifier of said specimen, of which flow path a part is inserted the second end of said specimen introduction nozzle; and an identification portion including a light receiving portion that detects said identifier of the specimen via light with a part of a circumference of said flow path, the flow path being surrounded by a laminar flow aperture that holds a sheath flow, the light receiving portion being attached to the laminar flow aperture, and said specimen source comprising a plurality of sample supply nozzles, at least one of which sample supply nozzles passes through liquid containing said specimen, at a merge position or vicinity of which merge position where the liquid passing through each of said plurality of sample supply nozzles merges, at least one of a concave position or convex position for generating turbulent flow is provided at the merge position, and a downstream flow of the liquid is coupled to said second end of said specimen introduction nozzle.