PROBLEM TO BE SOLVED: To fix an access port to a biological membrane such as a pericardium in a state that the biological membrane is penetrated.SOLUTION: An access port 1 includes an inner cylinder 2 and an outer cylinder 3 engaged in a manner to make a relative movement in an axial direction, and has generally complementary-shaped holding surfaces 2e and 3c that are moved close to or away from each other by the relative movement of the inner cylinder 2 and the outer cylinder 3 on at least one of the inner cylinder 2 and the outer cylinder 3.COPYRIGHT: (C)2014,JPO&INPIT【課題】心膜のような生体膜に対して、該生体膜を貫通した状態で固定する。【解決手段】軸方向に相対移動可能に嵌合された内筒2および外筒3を備え、該内筒2および外筒3の少なくとも一方に、内筒2と外筒3との相対移動によって、近接または離間させられる略相補的な形状の挟持面2e,3cを有するアクセスポート1を提供する。【選択図】図1
