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    • 5. 发明专利
    • BALLOON FOR CATHETER AND MANUFACTURE THEREOF
    • JPH0213423A
    • 1990-01-17
    • JP16419688
    • 1988-06-30
    • OKAMOTO IND INCM & M CO LTD
    • SHIMAMURA YOSHIYUKITSUSHIMA KYOGOSETO HISATO
    • A61B1/00A61M25/00
    • PURPOSE:To enable transmission of a laser beam and to be seen through by fitting a transparent thin film body having an expansion portion formed at the forward end of a fixed portion in the same boby to the forward end of a catheter to let physiological salt water flow in the expansion portion to be expanded. CONSTITUTION:A transparent thin film body A has an expansible expansion portion 2 formed in one body at the forward end of a fixed portion 1 and elasticity. The fixed portion 1 is fixed to the forward end portion (b) of a catheter B where an endscope tube C is inserted, and the expansion portion 2 is projected from the forward end of the catheter B to cover the main body A. The expansion portion 2 comprises a spherical body having the elasticity, which is formed at the forward end of the fixed portion 1. When the main body A is fixed to the forward end portion (b) of the catheter B to be covered therewith, physiological salt water is let flow from a pouring port of a channel of an endsoope projected from the forward end and inserted in the catheter, thereby expanding the expansion portion to a designated size, so that film thickness is further decreased to enable seeing through and a laser beam such as argon laser can be transmitted.