Exposure suction device convenient to hold and used in spinal canal of spine

The utility model discloses a spine intraspinal exposure suction device convenient to hold, which comprises a drainage tube and a blunt end of a sphere structure arranged at the drainage end of the drainage tube, a drainage hole coaxial with and communicated with an inner hole of the drainage tube is arranged on one side of the blunt end, and the other end of the drainage tube is bent to be provided with a holding section. The bottom end of the holding section is sleeved with an aspirator hose, the holding section is sleeved with a tube holding sleeve with the position capable of being changed, the top of the tube holding sleeve is provided with a finger top piece towards the outer side, the bottom of the tube holding sleeve is provided with a finger clamping piece towards the inner side, and the bottom end of the tube holding sleeve is sleeved with a positioning rotary sleeve for fixing the tube holding sleeve. According to the spinal cord drainage device, the bent drainage tube is convenient to hold, rollin