The top coat is the final layer applied during the decoration of a building's exterior. It plays a crucial role in determining the overall appearance and durability of the finished surface. As the last protective layer, it must be made from high-quality materials that not only offer excellent color and brightness but also provide strong resistance to pollution, aging, moisture, mold, and environmental damage. These coatings should be non-toxic, safe, and free from fire hazards. They should be easy to apply, dry quickly, and maintain a good level of gloss and color retention over time. Additionally, they should allow for proper breathability, ensuring long-term performance. Beyond their aesthetic appeal—such as color, shine, and texture—the top coat must also withstand harsh weather conditions and daily wear, making it an essential component of any exterior finish.

Venous Cannula

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.yonyue.com