In traditional Chinese medicine, acupuncture involves the insertion of needles into the skin along energy lines called meridians. Disease and pain are thought to be caused by blockages in these meridians, and the precise placement of the needles is believed to relieve these blockages, allowing the life energy, or chi, to flow correctly. Acupuncture improves the body's natural healing processes and enhances a general sense of well being, according to the American Academy of Medical Acupuncture website. There are several types of acupuncture needles designed for specialized techniques.
Stainless Steel Filaform Needles
Stainless steel filaforms are the most common needles used in acupuncture, according to the My Dr. website. These are thread-like needles that range from about 0.12mm to 0.35 mm in diameter, and can be up to 7 cm long. Like most acupuncture needles, stainless steel filaforms come pre-sterilized and packaged in blister-seal individual packs.
Plum Blossom Needles
A plum blossom needle is not actually a single needle, but a group of seven needles arranged in a flower pattern and attached to a single flexible head. Some plum blossom needles have a reusable head that is detachable for sterilizing, notes the My Dr. website. This needle is used for significant chi blockages concentrated in a small area. It can also be tapped along the length of a meridian to enhance the flow of energy.
Intradermal needles
Intradermal needles are thin and short, and are used in the ears and other difficult-to-reach areas. They are typically only inserted 1mm to 3mm into the skin, and are covered with waterproof tape to hold them in place. According to the My Dr. website, intradermal needles are frequently used to treat addictions and chronic pain.
Three-Edged Needle
The shaft of a three-edged needle has three sides that form a triangular shape. The shaft is attached to a barrel handle. According to the My Dr. website, a three-edged needle resembles a lance. It is typically used in acupuncture applications that require the removal of a few drops of blood.
Press needles
Press needles are used in acupuncture applications that require the needles to be left in for a day or longer. They are typically no more than 3mm long, and have a spiral end so they don't disappear into the skin. Press needles are commonly inserted into the external ear, notes the My Dr. website.These needles are covered with surgical tape after insertion to prevent dirt and bacteria from causing infection.
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