| 摘要 |
PROBLEM TO BE SOLVED: To provide a guide balloon for rapid and safe insertion of the insertion portion of an automatic anastomotic device into the biotissue and the automatic anastomotic device having this guide balloon. SOLUTION: A guide balloon 1 includes a cylindrical base part 2 which allows the insertion of a trocal 73 mounted at a distal end of a ligature head assembly 60 of the automatic anastomotic instrument, a balloon part 3 which is held folded at the outside surface of this base part 2 at the time of nonuse and is deformable when dilated, a tube which allows the flow of the gas or the like packed into this balloon part 3 and a pump 5 which supplies or discharges the gas in the balloon part 3 via this tube. There is no need for the tube and pump when the gas, etc., are packed into the balloon part 3 before mounting and the convergent shape may be maintained. The balloon part 3 is directly fixed to the trocal 73 in the case the guide balloon 1 is integrally mounted to the distal end of the ligature head assembly 60.
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