| 摘要 |
<p>A cannula tube (1) configured so that the front end side thereof is inserted into a body cavity (103) to ensure the insertion path for inserting medical forceps (5) into the body cavity (103) from the base end side of the cannula tube (1). The cannula tube (1) is provided with: a front end tube member (4) for forming the insertion path on the front end side of the cannula tube; a base end tube member (2) for forming the insertion path on the base end side of the cannula tube; and an intermediate connection section (3) which connects the front end tube member (4) to the base end tube member (2) so that the front end tube member (4) can tilt relative to the base end tube member (2) in the directions of two axes centering on the pivot center (O) and which causes the insertion paths of the front end tube member (4) and the base end tube member (2) to communicate with each other.</p> |
