Video on the method of bloodletting with a three-edged needle

Generally, to achieve the therapeutic goals of promoting blood circulation, clearing blockages, reducing heat, and relieving swelling and pain, treatment may involve bloodletting with a three-edged needle. Methods of three-edged needle bloodletting include spot pricking, slow pricking, and密集 pricking. Taking the slow pricking method on the arm as an example, the specific procedure is as follows:

1. The patient sits on a chair.

2. A tourniquet is applied to locally constrict the vein at the pricking site on the patient's arm, followed by gentle pressing and massaging above and below the area.

3. Once the local vein is sufficiently engorged and visible beneath the skin, disinfect the skin with alcohol.

4. The physician uses one hand to press below the puncture site while using the other hand to slowly insert the three-edged needle into the vein.

5. Slowly withdraw the three-edged needle, allowing blood to flow out from the puncture site.

6. Once the流出 blood changes from dark to red, release the tourniquet and apply pressure with a dry cotton swab to stop the bleeding.

It is recommended that three-edged needle bloodletting be performed at a正规 medical institution by qualified medical professionals.