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How to choose the right type of suction catheter 

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Author : Joe
Update time : 2022-01-20 10:22:07
How to choose the right type of suction catheter 

When suctioning sputum, in order to avoid mucosal trauma and secondary infection, an appropriate suction catheter should be selected. The suction catheter should meet the following requirements:

(1) the material of the suction catheter should have little damage to the mucosa;
(2) the friction of the suction catheter should be small to facilitate passage through the artificial airway;
(3) the suction catheter should be of sufficient length so that the distal end of the suction catheter can reach the artificial airway. The distal end or carina, otherwise it is difficult to achieve the purpose of suctioning airway secretions;
(4) The distal end is smooth, and the side opening should be changed to reduce the damage to the mucosa;
(5) The proximal end of the suction catheter should have a large side hole, When it is necessary to interrupt the negative pressure suction, just open the side hole. It can avoid mucosal damage or atelectasis caused by continuous suction of negative pressure, and can also avoid repeatedly closing the negative pressure suction device;
(6) The diameter of the suction catheter (external channel) should not exceed half of the inner diameter of the artificial airway. If the diameter of the suction catheter is too large, less air is involved around the suction catheter during negative pressure suction, which may easily lead to lung collapse or atelectasis;
(7) The suction catheter should be sterile and packaged in a single piece to avoid cross infection , and easy to operate. Disposable suction catheters should be used if possible.