PROBLEM TO BE SOLVED: To provide a technique capable of efficiently generating a proper suction pressure with a simple configuration.SOLUTION: A body fluid sucking pump has: an inlet port for allowing a body fluid to be sucked a container for receiving the body fluid a reverse flow prevention valve connected to the inlet port in the container an outlet port for allowing the sucked port to be discharged and a cylindrical restoring means which is internally provided in the container and generates a suction pressure in the container by restoring its shape which has been compressed after compressing the container. In the pump, the restoring means is composed of a plurality of thick portions which are not deformed when the container is compressed, and a plurality of thin portions which are deformed when the container is compressed to couple the thick portions.COPYRIGHT: (C)2013,JPO&INPIT【課題】シンプルな構造で効率的に適度な吸引圧を発生し得る技術を提供すること。【解決手段】体液が吸入される吸入口と、体液を受け入れるための容器と、前記容器内で前記吸入口に接続される逆流防止弁と、吸入された体液が送出される送出口と、前記容器内に内設され、前記容器を圧縮した後に圧縮された形状が復元することで前記容器内に吸引圧を発生させる筒状の復元手段と、を備え、前記復元手段が、圧縮時に変形しない複数の肉厚部と、圧縮時に変形し前記複数の肉厚部を連結する複数の肉薄部とから構成された体液吸引用ポンプを提供する。【選択図】図1