Device and method for producing polymer fibers and its uses thereof

A device for producing polymer fibers, the device comprising:

• at least one nozzle configured to receive a polymer solution and a jet of compressed gas, wherein the at least one nozzle comprises:
• a body having a hollow space, an opened first end and a second end opposite to the opened first end, a first inlet of the jet of compressed gas in the second end, and at least one tubular fiber spinning needle mounted through the second end and the hollow space, wherein the at least one tubular fiber spinning needle comprises:
• an unfixed distal end protruding from the opened first end a proximal end opposite to the unfixed distal end, an inlet of the polymer solution at the proximal end, and an outlet of the polymer solution at the unfixed distal end, wherein the proximal end of the at least one tubular fiber spinning needle is fixed to the second end of the at least one nozzle,
• wherein the first inlet of the jet of compressed gas is formed offset from a nozzle axis of the at least one nozzle so that the jet of compressed gas creates a rotating vortex in the hollow space, which causes the unfixed distal end of the at least one tubular fiber spinning needle to revolve or vibrate;
• a pump configured to pump the polymer solution through the at least one tubular fiber spinning needle of the at least one nozzle;
• and
• a gas compressor configured to direct the jet of compressed gas into the first inlet of the jet of compressed gas of the at least one nozzle.