论文部分内容阅读
73年来报告的用均值法在体表记录希氏-浦顷野纤维(简称希-浦,下同)电活动的方法有较大缺点,限制了其临床应用。本文介绍用体表心电图来记录希-浦电活动,从而避免用均值法的缺点。方法:建造一间高度屏蔽的房间,以尽可能排除由电、磁产生噪声的干扰。用排列紧密而互相绝缘的几个(n 个)体表电极和数目相同的光电放大器形成几个平行输入信号,将信号输入于有同样数目放大器的组合模拟电路中,使肌肉、仪器本身来的各种噪声以(?)增加,而心脏信号则以 n 增加,把原始信号放大10,000倍。然后,把需要的信号通过一些带通滤波器,同时把35Hz 以上的信号利用对数放
73 years reported by the mean method in the body surface record Hirschhorn - Pu are wild fibers (Xi - Pu, the same below) the electrical activity of the larger shortcomings, limiting its clinical application. This article describes the use of body surface electrocardiogram to record Xi - Pu activities, thus avoiding the shortcomings of the mean method. Methods: A highly shielded room was constructed to eliminate as much noise as possible from electricity and magnetism. A few parallel input signals are formed by several (n) body surface electrodes arranged closely and insulated from each other and the same number of optoelectronic amplifiers, and the signals are input to a combined analog circuit having the same number of amplifiers so that the muscles, the apparatus itself All kinds of noise increase (?), While the heart signal is increased by n, the original signal is magnified 10,000 times. Then, the required signal through a number of band-pass filter, while the signal above 35Hz using logarithmic