Rupp R, Vossius G, Gerner H J
Stiftung Orthopädische Universitätsklinik Heidelberg, Deutschland.
Biomed Tech (Berl). 2002;47 Suppl 1 Pt 2:609-10. doi: 10.1515/bmte.2002.47.s1b.609.
In this paper we present an electrode for measuring the surface electromyogram (EMG) that combines high quality of signal recording with the ease of use in clinical routine. Additional requirements have been the use of the electrode in combination with electrical stimulation and under dynamic conditions like walking. Special focus was put on the minimization of movement artifacts by integration of a dual impedance transformer (active electrode) and by a self-adjusting fixation of the two contacts of the electrode via proprietary springs. An elaborate preparation of the skin is not necessary due to a very high input impedance of the amplifier. A special circuit for overvoltage protection makes the electrode suitable for use in the presence of high voltage stimulation pulses without the risk of destroying the FET-input stages.
在本文中，我们展示了一种用于测量表面肌电图（EMG）的电极，它将高质量的信号记录与临床常规使用的便利性相结合。其他要求包括该电极要能与电刺激结合使用，并且能在如行走等动态条件下使用。通过集成双阻抗变压器（有源电极）以及通过专利弹簧对电极的两个触点进行自调节固定，特别注重将运动伪影降至最低。由于放大器具有非常高的输入阻抗，因此无需精心准备皮肤。一种特殊的过电压保护电路使该电极适用于存在高压刺激脉冲的情况，而不会有损坏场效应管输入级的风险。
