Sheath flow cell cuvette, method of fabricating the same and flow cytometer including the same

摘要

The present invention relates to a sheath flow cell cuvette and the like provided with a structure to effectively prevent relative positional fluctuation between component members. The said sheath flow cell cuvette comprises a chamber portion comprised of a resin and an orifice portion comprised of a glass material. One end of the orifice portion is buried in the chamber portion, and at this buried part, a latching structure to prevent the orifice portion from shifting with respect to the chamber portion is provided. A cell suspension fluid of a measuring object is injected at high pressure from the chamber portion toward the orifice portion while being surrounded by a sheath fluid. At this time, although an extruding pressure along a flowing direction of the cell suspension fluid is exerted on the orifice portion, since a relative positional fluctuation between the chamber portion and orifice portion is avoided by an action of the latching structure covered with the resin of a part of the chamber portion, a laminar flow condition between the cell suspension fluid and sheath fluid is stably maintained.