Micro-needle knife therapy is different from traditional needle knife therapy, and has a very significant effect on clinical neck, shoulder, waist, leg and other systemic joint pain or cancer pain. It has the advantages of convenient operation, wide range of indications, small trauma, quick effect, economic safety, no side effects and easy acceptance by patients. Shape characteristics Adopt disposable sterile packaging, easy to scale production, carry and operation. The tip of the needle is in the form of a flat bottom semi-circular arc with a three-edged blade surface, the body of the needle is in the form of a hollow tube, and the handle of the needle is in the form of a flat anti-slip design. The protective sleeve is made of disposable polypropylene material, non-toxic, odorless and tasteless, no chemical reaction even when in contact with the drug, hygienic and safe, easy to carry and use. Indications: At present, it is mainly used for: cervical spondylosis, frozen shoulder, tennis elbow, lumbar disc herniation, lumbar muscle strain, tenosynovitis, carpal tunnel syndrome, popping fingers, knee osteoarthritis, obsolete ankle joint injury, degenerative changes of hip joint, ankylosing spondylitis, postherpetic neuralgia, etc. Features: Hollow micro-needle knife compared with traditional needle knife, has ① less pain or no pain, safe and convenient, micro-needle knife with its small needle body, small trauma to the local skin, the pain is not obvious when entering the needle, the operation first local lidocaine local block anesthesia, no local anesthetic toxic side effects, the patient is more acceptable. ②Simple and easy to use, the environment and equipment requirements are not high, easy to use, no need to disinfect a large area to spread the towel, as easy to operate as intramuscular injection, convenient to promote the use of large-scale in various medical institutions. ③Diverse functions, both with the floating needle function of sweeping, acupuncture point injection and needle knife cutting and stripping function. ④Good efficacy, fast results, for common indications patients often have the application of surgery about three times can be basically cured, especially for some intractable pain, such as cancer pain, herpes zoster diagnosis post-neuralgia, etc. The effect is clear. The materials used are widely used in medical devices, which are easy to obtain and have low results, and have good social and economic values.