| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an improved balloon for surgery which is brought into contact with more area of a body cavity when the balloon swells in the inserted body cavity. <P>SOLUTION: The outer surface of a balloon 10 in the first side and the inner hollow 16 of balloon 10 in the second side are demarcated respectively, and the balloon contains an outer wall 28 which actually is continued and made from materials, for which it is possible to extend between the condition crushed with pressure in the inner hollow 16 and the swollen condition, and the outer wall 28 includes a bottom 20 to combine with a shaft 12, a middle part 22 which neighbors the bottom 20, and edge parts 24 and 26 which are at the far position of the edge part of the balloon 10 and neighbor the middle part 22, and the bottom 20 has the first primary wall thickness, the middle part 22 has the second primary wall thickness, and the edge parts 24 and 26 have the third primary wall thickness. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
