| 摘要 |
PURPOSE: To obtain a safe and efficient catheter by providing a suction pipe with a side pipe to be installed in combination therewith, opening both at the front ends and forming a catheter in such a manner that the front end of an intermediate partition wall leaves a gap without arriving at the front end of the catheter and or the front end of the intermediate wall is notched to make the intermediate wall vibratable at the time of use. CONSTITUTION: A negative pressure is generated in a suction pipe cavity 1 and the phlegm, etc., to be sucked are sucked to the front end of the catheter when the suction pipe is connected to a suction pipe and the negative pressure is applied thereon in the case of the shape lacking the intermediate wall 3 of the front end. The effect of this negative pressure acts on the side pipe through the non-closed lacking part according to this suction and, therefore, the air and medicinal liquid in the side pipe cavity 2 are eventually sucked out through the lacking part to the suction pipe cavity 1 side. The sucked out flow simultaneously washes the viscous object, such as phlegm 8, at the front end of the catheter, thus having the effect of making the suction easy and preventing the closing of the lacking part with the object. For example, a danger of forming an atelectasis is averted at the time of sucking the phlegm of the lung. |
