Uhley H N
Am Heart J. 1975 Nov;90(5):607-10. doi: 10.1016/0002-8703(75)90225-2.
A small, easy-to-construct, pocket-sized ECG telephone transmitter utilizing few components and costing less than $20.00 is described. The tone produced varies with the ECG signal and may be transmitted over the telephone system to a demodulator and ECG recorder for permanent records and interpretation, as well as serving as an indicator of the ECG signal at the bedside. This simple device provides useful information on patients with various clinical problems.
本文描述了一种小型、易于构建、口袋大小的心电图电话发射器，它使用的组件很少，成本不到20美元。产生的音调随心电图信号而变化，可以通过电话系统传输到解调器和心电图记录仪，以进行永久记录和解读，同时也可作为床边心电图信号的指示器。这种简单的设备能为患有各种临床问题的患者提供有用信息。
