Intervertebral disk knife

This utility model relates to an intervertebral disc microscopic knife, it is a device for the medical treatment of neck and waist intervertebral disc diseases. It discloses a needle core covered with an external tube needle with scale, the outer wall of external tube needle may be flexibly equipped with the adjustable measuring scale, a storage bin is arranged between the external tube needle and handle, and the external tube needle is connected with the storage bin. During operation, it may form less wound face, reduce the pain of patient, and the wound easier to cure, moreover, it has the simple structure, effectively improve the cutting precision with the measuring scale and storage bin, thus greatly improve the safety coefficient, easier to popularize and operate.