| 摘要 |
Endotube intended particularly to be placed in the oesophagus and comprising at one end a funnel-like widening (1), a tube-like central part (2), and at the other end a bulging which widens towards the the central part (2), and which makes difficult to withdraw the endotube after its insertion through a narrowing. Said bulging is comprised of two thin walled hollow linings (3) which open to the inside of the central part (2) on which they make a projection and in the direction of which they raise and are terminated by a steep slope (4). It is thus possible, even in the case of the insertion of an endoscope intended to be placed into the endotube, to fold completely the linings (3) so as to easily guide them through a narrowing. The configuration of the funnel-like widening (1) enables to obtain, in association with an inserted placing tube, a torsion resistent connection. |
