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    • 3. 发明公开
    • DENTAL POWDER-JET HANDPIECE
    • EP4162895A1
    • 2023-04-12
    • EP22732379.7
    • 2022-01-20
    • Guilin Woodpecker Medical Instrument Co., Ltd.
    • WU, XunxianTANG, PengZHANG, Libin
    • A61C3/025
    • The embodiment of the present disclosure discloses a dental sand blasting gun, when dental sand blasting powder is removed from a sand blasting handle, the dental sand blasting powder in a sand powder tank does not need to be poured out; a reversing valve, a second gas outlet and a purging pipe are additionally arranged in the sand powder tank, an gas inlet is enabled to be communicated with the second gas outlet through the reversing valve, furthermore, and the gas inlet is not communicated with a first gas outlet, then, compressed gas entering the second gas outlet is introduced into the sand blasting handle through the purging pipe, and the dental sand blasting powder remained in the sand blasting handle is removed; simultaneously, according to the dental sand blasting gun disclosed in the present disclosure, the sand blasting handle and the sand powder tank are separately designed, so that a user only needs to hold the sand blasting handle when using the dental sand blasting gun, the weight of the held part of the dental sand blasting gun is reduced, the use comfort of the dental sand blasting gun is improved, and the hand fatigue feeling is relieved; and meanwhile, the sand powder tank does not occupy the space around the sand blasting handle, which reduces the volume of the sand blasting handle, reduces the influence on the visual field of a user, and improves the convenience of operation.