What are the structural characteristics of medical puncture needle?

Radiofrequency puncture needle and radiofrequency trocar are disposable sterile products, which are used together with radiofrequency temperature control thermocondenser. Puncture during radiofrequency thermocoagulation therapy for nerve and muscle tissues. The radiofrequency puncture needle radiofrequency trocar is removed under sterile conditions. Before use, ensure that the length and diameter of the surgical electrode are appropriate for the length of the radio-frequency puncture needle. Refer to the specification and size of the radio-frequency temperature control thermocondenser in the manufacturer's manual. If you are not sure, remove the lining of the RF thermosetting electrode trocar from the needle and insert the electrode into the needle for verification. At this point, if the top of the electrode is just out of the needle and located in the middle of the needle end slope, and the electrode is not significantly loose, then the optics are very suitable. Make sure that the liner fits the needle properly. Percutaneous puncture was performed using an radiofrequency thermosetting electrode trocar until the tip of the needle reached the target location. Gently remove the liner from the needle tube and insert the surgical electrode.