Patent ID: 8550798

Claim:
An injection nozzle for electrospinning, comprising: a nozzle body provided in a lower surface thereof with a needle locking hole and provided therein with an air passage for receiving and discharging air and with a solution feed passage communicating with the needle locking hole; an air jacket member detachably mounted to a lower part of the nozzle body and defining an air discharge passage, spaced apart from the lower surface of the nozzle body, and having an injection hole which is in a lower part of the air jacket member and communicates with the needle locking hole and the air discharge passage; and a needle member passing through the injection hole and being locked to the needle locking hole, wherein the nozzle body includes: a nozzle block, with the needle locking hole formed in a lower surface of the nozzle block and locking the needle member, and with the solution feed passage defined inside the nozzle block and feeding a fiber solution to a solution discharge hole of the needle member locked to the needle locking hole; and a cover body mounted to an upper end of the nozzle block and detachably mounted to an upper end of the air jacket member, wherein the nozzle block is inserted into a block insert chamber of the air jacket member, the nozzle block having the air discharge passage defined between the nozzle block and the air jacket member, and having therein the air passage for discharging air to the air discharge passage.