Mechanical stone crushing device

The utility model provides a mechanical lithotripsy device, which comprises a sheathing canal, a lithotripsy needle, a lithotripsy needle, a lithotripsy needle and a lithotripsy needle, the mesh basket is arranged on the outer side of the sheathing canal and connected with the sheathing canal, and a containing space used for containing calculi is defined by the mesh basket; the positioning piece telescopically penetrates through the central channel of the sheathing canal, and the far end of the positioning piece is used for abutting against the calculus contained in the net basket to limit displacement of the calculus; and the drill bit is arranged on the positioning piece and is used for crushing stones. 本实用新型提供一种机械式碎石装置，该装置：鞘管，其限定出中心通道且其具有入口与出口；网篮，所述的网篮设置在鞘管的外侧且与鞘管相连，所述的网篮限定出用于收容结石的收容空间；定位件，其可伸缩地贯穿鞘管中心通道设置且其远端用于与收容在网篮中的结石相抵以限制结石的位移；钻头，其设置在定位件上，所述的钻头用于粉碎结石。