Conventionally, as this type of powder spraying device, there has been known a device comprising a main body of the powder spraying device, a powder container attached to the main body that contains powder such as medical agents, a pressurized gas channel provided on said main body where the powder in said powder container is supplied, and a pressurized gas supply source that supplies pressurized gas to said pressurized gas channel, wherein the powder within the above powder container is supplied to the pressurized gas supplied from said pressurized gas supply source to said pressurized gas channel in order to spray said powder together with the pressurized gas (Patent Document 1).
In using this powder spraying device to supply the powder within the powder container to the pressurized gas, once said pressurized gas is sprayed into the powder container, the powder is stirred within the powder container by the spraying so as to be mixed with the pressurized gas, and then said powder is discharged out of the powder container together with the pressurized gas to be further sprayed onto the lesion in the patient's body and the like.