| 摘要 |
<p>An endoscope includes a connector portion attached to a universed cord of the endoscope, a gas feed tube and a liquid feed tube each connected at one end to a liquid feed tank, and an insertion member provided at the other ends of the gas feed tube and the liquid feed tube and capable of being attached to and detached from the connector portion. A movable member is provided at the connector portion and is capable of taking a first position in which a gas feed passage and a liquid feed passage of the endoscope communicate with the gas feed tube and the liquid feed tube, respectively, when the connector portion is connected to the insertion member, and a second position in which the gas feed passage and the liquid feed passage are disconnected from the gas feed tube and the liquid feed tube, respectively, and the liquid feed passage communicates with an air pump, when the insertion member is removed from the connector portion. Accordingly the interior of the liquid feed tank is pressurized by the air pump and a liquid in the tank is fed into the liquid feed passage through the liquid feed tube when the connector portion and the insertion member are connected, and gas is fed from the air pump directly into the liquid feed passage to discharge residual liquid when the insertion member is removed from the connector portion.</p> |
