The invention discloses a spinal
endoscope safety working sheath capable of quickly switching
perfusion pressure, which comprises a sheath tube and a switching control
assembly, and one end of the sheath tube is embedded into the switching control
assembly; the sheath tube comprises a
water channel and a working tube channel I; the working tube channel I is used for containing an
endoscope outer working tube, the switching control
assembly comprises a conduction column body, a sheath tube embedding groove is formed in one end of the conduction column body, a sheath tube is embedded into the sheath tube embedding groove, a drainage hole is formed in the middle of the conduction column body, and a switching structure used for controlling sealing or conduction of the drainage hole is arranged on the conduction column body. A working
pipe channel II communicated with the working
pipe channel I penetrates through the conduction column body, and a
handle is arranged on the outer side of the end portion of the other end of the conduction column body. A switching structure is arranged on the working sheath
handle, a doctor can freely select and rapidly switch the opening / closing state of a working sheath
water channel according to clinical
adaptation disease requirements in an operation, namely the high-pressure / low-pressure state generated by
perfusion pressure in the operation, surgical instruments do not need to be additionally added or replaced, and the
surgical operation difficulty is reduced.