| 摘要 |
PURPOSE:To obtain an organism freezing probe which is in the form of a long and narrow pipe by alternately laminating metal foil and resin meshes within a rougly-ring-shaped space located on the side of the inner periphery of an outer pipe formed by a bendable thin tubular body, thus thermally insulating the outer tube and a conduit pipe located on the side of the inner periphery of the outer pipe. CONSTITUTION:A laminated body 6 formed by lamination of metallic foil 6a and resin meshes 6b on each other is disposed in a roughly-ring-shaped space defined on the side of the inner periphery of an outer pipe 4 which is formed by a bendable thin tubular body, so that the outer pipe 4 and a conduit pipe 3 located on the side of the inner periphery of the outer pipe are thermally insulated. The ring-shaped space 5 located on the side of the inner periphery of the outer pipe 4, together with its pressure-resisting strength which may be required under vacuum conditions, it not held by the side of the outer pipe 4 but by the bendable laminated body 6, so that the outer pipe 4 can easily be reduced in its wall thickness and also in diameter. An organism freezing probe 10 can thus be obtained which is in the form of a long and narrow pipe and capable of being integrated into an endoscope. |
