It is composed of joint and tube, its surface is smooth, it has no burr, it has no ha and stimulation to patient; the tube is transparent, it has not other matters and impurities, it assimilates sputum smoothly, but it has no shrunken phenomena. All parts adopt the medical material which confos to the requirements, it is asepsis, innocuity, no pyrogen after sterilized by radiation, it is convenient to use. It has no cross infection because of single use.

Suction Catheter consist of soft plastic medical tubing and a finger-controllable connector . The distal end is smooth and rounded with two non-opposing lateral eyes for patient comfort and efficient aspiration . Different sizes of catheters have different colored connectors . The design of the connector is such that suction can be applied with or without finger control . With X-ray or without , Transparence or translucence is available .