I don't know what kind of puncture needles you are importing, generally puncture needles belong to class 2 medical devices, but biopsy puncture needles, lumbar puncture needles, single-use sterile puncture needles, and so on, all belong to class 3 medical devices.
You can check the data on the website of the State Food and Drug Administration (SFDA) by clicking on Imported Medical Devices and typing in Puncture Needles. The registration approval numbers of all imported puncture needles can be checked.