The biological cell sampling needle 1 is for collecting an oocyte or an egg from a human ovary and includes a hollow small-diameter distal end portion 22 extending toward the distal side from the hollow main body portion 21 and the hollow main body portion 21, a hollow small-diameter distal end portion A hollow needle 20 having a tapered portion 25 located between the hollow body portion 21 and the hollow main body portion 21 and having a diameter decreasing toward the distal end thereof and a piercing blade tip portion 24 provided at the distal end of the hollow small diameter distal end portion 22, A hub 30 fixed to the rear end portion of the hollow main body portion 21, a hub 30 housed in the hollow needle 20, the distal end thereof being located in the tapered portion 25 or in the distal end portion of the hollow main body portion 21, the rear end portion penetrating the hub 30 An inner tube 11 fixed to the hub 30, and a living cell suction tube 41 connected to the rear end of the inner tube 11. The rear end of the hollow needle 20 is located inside the hub 30, the tip of the biological cell sampling needle 1 is positioned within the hub 30, communicates with the inside of the hollow needle 20, the rear end portion protrudes from the hub 30, And a side tube 53 that is liquid-tightly fixed to the hub 30, and a collection assisting liquid supply tube 51 is connected to the side tube 53.生体細胞採取針1は、ヒトの卵巣から卵母細胞もしくは卵子を採取するためのものであり、中空本体部21と中空本体部21より先端側に延びる中空小径先端部22と、中空小径先端部22と中空本体部21間に位置し、先端に向かって縮径するテーパー部25と、中空小径先端部22の先端に設けられた穿刺用刃先部24と有する中空針20と、中空針20の中空本体部21の後端部に固定されたハブ30と、中空針20内に収納され、先端がテーパー部25内もしくは中空本体部21の先端部内に位置し、後端部がハブ30を貫通するとともにハブ30に固定された内管11と、内管11の後端部に接続された生体細胞吸引用チューブ41とを備える。中空針20の後端は、ハブ30内に位置し、生体細胞採取針1は、先端部がハブ30内に位置し、中空針20の内部と連通し、後端部がハブ30より突出し、かつ、ハブ30に液密に固定されたサイドチューブ53を備え、サイドチューブ53には、採取補助用液体供給用チューブ51が接続されている。
