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    • 5. 发明专利
    • HOLLOW YARN MATERIAL EXCHANGER OF ENDODETENTION TYPE
    • JPH0499573A
    • 1992-03-31
    • JP21774890
    • 1990-08-17
    • KURARAY COMORIOKA TORUTERASAKI HIDENORI
    • MORIOKA SUSUMUTERASAKI HIDENORIAKASU HIROYUKI
    • A61M1/18
    • PURPOSE:To allow the easy insertion of an artificial lung into a vein and the uniform loosening of many pieces of hollow yarn after insertion by disposing small-diameter tubes provided with elongating and contracting means in parallel with hollow yarn bundles and fixing the tubes to the convergent fixing parts at both ends of a hollow yarn bundle. CONSTITUTION:A stylet 7 is inserted from the opening end of the 2nd tube 3 inserted from the aperture of the artificial lung L into the 1st tube and the front end is pressed to a 1st header and is further inserted until a stopper 12 comes into contact with the opening end of the 2nd tube 3. The artificial lung L is inserted into the vein while this hollow yarn bundle is held tense. The insertion of the artificial lung L into the vein is easy as the hollow yarn is reduced in diameter and the stylet 7 is elastic. The adhesive fixing parts 8, 8 of the hollow yarn bundle are brought near to each other again by the shrinkage of the 2nd tube 3 when the stylet 7 is removed after the detention of the artificial lung L in the vein is confirmed and, therefore the hollow yarn is deflected and loosened in the vein A and the blood starts flowing between respective pieces of the hollow yarn.