The needle electrode used in electromyography examination is called a disposable needle electrode (also known as electromyography needle or concentric needle), which is a bipolar thin needle shaped electrode. During the examination, electrodes are inserted into the muscles, and the biological currents of the muscles in resting and contracting states are amplified through a signal amplifier, which is then displayed on an oscilloscope.
Features:
1. Needle: The cutting surface of the needle is smooth, the needle insertion is smooth, and the patient feels less pain.
2. Needle tube: Good flexibility, laser cutting on the cutting surface, smooth and without burrs.
3. Connector: The connector is gold-plated to reduce signal distortion, ensuring stable and high accuracy of the signal.
4. Handle: Anti slip design, with plastic protrusions indicating the transverse direction of the needle tip, convenient to use.