PROBLEM TO BE SOLVED: To provide a capillary blood-collection device capable of performing suction by capillary phenomenon further effectively.SOLUTION: A capillary suction cylinder part made of a transparent or translucent plastic resin is formed on a sucking side tip part of a cylindrical body, and a sucked-and-collected blood holding hole capable of holding sucked blood is formed inside the capillary suction cylinder part. The sucked-and-collected blood holding hole has an inversely tapered-shaped inner surface with an inner diameter gradually reduced from the suction side toward the anti-suction side, and at least the inversely tapered-shaped inner surface is hydrophilized by surface treatment by fluorine gas.COPYRIGHT: (C)2015,JPO&INPIT【課題】毛細管現象による吸引を一層効果的に行うことができるようにしたキャピラリー採血具を提供する。【解決手段】筒状本体の吸い上げ側先端部に、透明または半透明のプラスチック樹脂製の毛細管吸引筒部を形成し、前記毛細管吸引筒部の内部に、吸引した血液を保持可能な吸引採血保持孔を形成し、前記吸引採血保持孔が、吸い上げ側から反吸い上げ側に向かって内径を縮小させた逆テーパー形状内面を有するとともに、少なくとも前記逆テーパー形状内面をフッ素ガスによる表面処理によって、親水化した。【選択図】図１
