Directing take a liquid sample manner and take a liquid sample device

摘要

PROBLEM TO BE SOLVED: To provide the subject method comprising collecting a large quantity of chorioallantoic fluid as efficient as possible from an egg cultured for a specified period after inoculated with virus or the like for producing vaccines or the like, by breaking the chorioallantoic membrane while preventing contamination due to yolk or the like. ;SOLUTION: This method comprises the following practice: an egg A with its upper part cut off is positioned on a loading plate 2, a chorioallantoic membrane cutter 14 and a press member 16 are then allowed to descend; wherein the lower end of the cutter 14 is provided with a serrate cutting part 14a and the inside of the cutter 14 is provided with the press member 16 with its lower end 16a projected below the cutting part 14a, thus both the cutter 14 and press member 16 are allowed to make a vertical motion as a unit; the chorioallantoic membrane E is thereby broken and a fetus D or the like is pressed with the press member 16; with the situation maintained, the loading plate 2 is inclined by 135 degree; then, the chorioallantoic fluid B inside the egg A is allowed to flow through the interior 22 and outer surface side of the cutter 14 and discharged, and subsequently recovered into a recovery section 28.;COPYRIGHT: (C)2000,JPO