| 摘要 |
PURPOSE:To obtain a tube made of polymer containing fluorine for carrying a medical liquid wherein eluate from an unstable end group from a polymer containing fluorine is reduced and separation of the liquid is good by a method wherein after roughening an inner surface of the tube made of a polymer containing fluorine, its surface is treated in contact with fluorine gas. CONSTITUTION:An inner surface of a tube made of a polymer containing fluorine is roughened. Then, its surface is treated in contact with fluorine gas, to obtain the tube made of the polymer containing fluorine for carrying a medical liquid. The tube made of the polymer containing fluorine, only when prepared by forming the polymer containing fluorine into a tube shape in which the liquid can flow, is not limited. As the polymer containing fluorine to be used herein, polytetrafluoroethylene(PTFE), poluvinyl fluorine(PVF), etc., are exemplified. Those polymers containing fluorine suffice only by selecting suitably one or at least two kinds by considering conditions wherein the tube is used. For a manufacturing method for the tube, an extrusion molding method is general since, for example, general tubes are constant in a sectional shape. |
