It can cut and suck out nucleus pulposus efficiently, shorten the operation time. The aseptic disposable handle of nucleus pulposus removal is controlled by power supply, and the disposable handle is set faster. It does not need to clean, check and sterilize before operation. It reduces the demand for a variety of traditional instruments. The amount of nucleus pulposus removed effectively is accurate and predictable, which can reduce the pressure of nerve root No matter the patient's age and the degree of intervertebral disc hydration, it can effectively ablate the tissue. Safe cooling and fluid based cutting function eliminate the risk of tissue thermal damage. The circular and non-invasive endoresector design reduces the risk of annulus fibrosus puncture and endplate injury. The insertion depth of 0.5cm laser marking device insertion depth indicator controls the insertion depth of the device Reduce the number of times the instrument passes through the surgical site and limit the risk of accidental nerve injury