Operation method and steps of subclavian vein puncture

0 1 patient supine. If the foot of the bed is raised about 15~25 degrees under medical conditions, so that the head is low and the foot is high, and the venous pressure is increased, it will be beneficial to the blood backflow during puncture and avoid the air directly entering the vein to cause gas embolism.

Strictly follow the aseptic operation, that is, disinfect the skin with appropriate drugs, and the medical staff wear sterile clothes and sterile gloves to operate. Take 5ml syringe to exhaust air, and suck 5ml normal saline.

After local anesthesia, the puncture point was 1-2cm below the midpoint of clavicle, and the needle tip pointed to the inner end of clavicle, and the needle was inserted horizontally. When the needle penetrates 3-4cm, there is frustration. After further needle insertion, the syringe piston will be twitched for the second time. If venous blood enters the syringe, the puncture position is correct.

After the puncture needle is slightly advanced, the medical staff takes off the syringe and blocks the needle with the other hand, so that the patient can temporarily pause breathing. Then, insert a hose filled with isotonic saline, fix the catheter in a proper position and slowly withdraw the puncture needle.

Cover the catheter with sterile gauze to help patients adjust their comfortable posture. It is recommended to change the dressing outside the catheter every day 1 time. According to the specific weather conditions, the skin can be disinfected with ethanol.