Venous cannula is also a deep venous puncture catheter. The method is to select the appropriate puncture site and insert the needle under the skin, and insert the needle with negative pressure until the dark red blood is absorbed, indicating that the needle has entered the vein, and the guide wire is inserted. Withdraw the puncture needle to leave the guide wire in the blood vessel, and then insert the venous catheter that needs to be indwelled along the guide wire, then exit the guide wire, inject diluted heparin saline and fix the catheter, the deep venous catheterization is completed. The veins for puncture and catheterization are usually selected clinically, including the subclavian vein, internal jugular vein, and femoral vein. After the puncture catheter is indwelled, attention must be paid to the care of the puncture site to avoid infection with thrombus or catheter falling off. venous cannulation,best veins for cannulation,venous cannulation set,venous cannulation technique Yong Yue Medical Technology(Kunshan) Co.,Ltd , https://www.yypcrtube.com
55° automatic adjustment angle gauge
The 55° dovetail guides on various machine tools have different angles during manufacturing and overhaul. In order to meet the angle values ​​of various 55° dovetail guides in manufacturing and overhaul, Figure 1 shows the 55° automatic adjustment of our design. The angle gauge, in the development of the 55° dovetail guide rail, can reduce the labor intensity of workers and increase the speed. Figure 2 shows the angle gauge automatic adjustment block.