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Table 1 Function of the different parts of a thread-embedding acupuncture device

From: Efficacy and safety of thread embedding acupuncture for chronic low back pain: a randomized controlled pilot trial

Consists Function
Needle hub Holds the device at the acupuncture point
Needle Inserts the absorbable thread into the acupuncture point through the hole of the needle hub
Thread Absorbable suture thread that is embedded within the body
Sponge Fixes the needle and absorbable thread
Protective cap Protects the needle and thread