| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an instrument in which releasing operation can be easily performed, and further, the exchange of a trocar is not required after the releasing operation. <P>SOLUTION: This cavity securing device for medical operation is at least composed of a balloon, a feed tube communicated to the balloon, a traction means for the balloon, a valve member and a stylet located within the balloon. <P>COPYRIGHT: (C)2003,JPO |
