The commonly used compression methods for infusion patches in clinical practice include thumb compression, small thenar compression, large thenar compression, three finger compression, four finger compression, etc. The pressing effects of different methods also have their own advantages and disadvantages. Studies have shown that four finger pressing and thumb pressing have lower subcutaneous bleeding rates, four finger pressing has lower subcutaneous congestion rates, and greater thenar pressing has lower pain rates.The infusion patch is placed in the center of the puncture point, and the thumb is used to horizontally and vertically compress the infusion patch, with even force and no bleeding.

The pressing methods are divided into non swappable pressing and swappable pressing. In clinical work, exchange compression is commonly used, which means that the nurse first presses the puncture point, and then the patient or family member performs the compression.

But it was found that during the exchange process, the infusion patch often had a large amount of bleeding. Due to the uneven pressure exerted by different operators and different dwell times during the exchange process, local blood flow can undergo a phenomenon of "blocking recovery re blocking coagulation".

During this process, blood flow rapidly overflows through the damaged blood vessel wall to the subcutaneous area, resulting in bleeding or subcutaneous congestion at the puncture site, especially when the patient is standing or with drooping arms. Therefore, when using exchange compression in clinical practice, it is important to emphasize that the patient or family member should not relax when continuously pressing the puncture point, otherwise it may lead to needle eye bleeding and subcutaneous congestion.

The non exchange pressing method refers to the nurse guiding the patient or family member to directly press while pulling out the needle. While quickly pulling out the needle, slight pressure can be applied, forming a "blocking coagulation" process in local blood flow without a "recovery" process. It helps to reduce the occurrence of bleeding, subcutaneous congestion or swelling, improve the efficiency and quality of infusion care, and is worth promoting in clinical practice.