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首页> 外文期刊>Artificial Organs >A New Transcutaneous Bidirectional Communication for Monitoring Implanted Artificial Heart Using the Human Body as a Conductive Medium
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A New Transcutaneous Bidirectional Communication for Monitoring Implanted Artificial Heart Using the Human Body as a Conductive Medium

机译：利用人体作为导电介质监测植入人工心脏的新型经皮双向通信

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摘要

A transcutaneous communication system (TCS) is a key technology for monitoring and controlling artificial hearts and other artificial organs in the body. In this study, we developed a new TCS that uses the human body as a conductive medium. Direct data exchange provides a higher level of communication security compared to that of wireless methods without physical constraints such as an external wire. The external and internal units of the new TCS each consist mainly of a data transmitter and a data receiver. The data transmitter has an amplitude shift keying (ASK) modulator (carrier frequencies: 4 and 10MHz) and an electrode. The ASK-modulated data current is led into the body through the electrode, and it flows back to the energy source through the body, the data receiver, and the earth ground that includes all conductors and dielectrics in the environment that are in close proximity to the patient. Performance of the TCS was evaluated by a communication test on the surface of the human body and in an animal experiment using a goat. The TCS was able to transmit data concurrently for 4 weeks between everywhere on the surface of the body and everywhere inside the body under full-duplex communication at a transmission rate of 115kbps. The power consumption of each TCS unit was 125mW with an ASK-modulated current of 7mA (root-mean-square). While further study is required to secure its safety, the newly developed TCS has promise to be a next-generation transcutaneous communication device.
机译：经皮通信系统（TCS）是用于监视和控制人造心脏和体内其他人造器官的关键技术。在这项研究中，我们开发了一种新的TCS，它将人体用作导电介质。与没有物理约束（例如外部电线）的无线方法相比，直接数据交换可提供更高级别的通信安全性。新TCS的外部和内部单元主要由一个数据发送器和一个数据接收器组成。数据发送器具有一个幅度移位键控（ASK）调制器（载波频率：4和10MHz）和一个电极。经过ASK调制的数据电流通过电极导入人体，然后通过人体，数据接收器和大地流回能量源，大地包括环境中与环境非常接近的所有导体和电介质病人。通过在人体表面进行的通讯测试以及在使用山羊的动物实验中评估了TCS的性能。在全双工通信下，TCS能够以115kbps的传输速率在人体表面上的每个位置与人体内部的每个位置之间同时传输数据4周。每个TCS单元的功耗为125mW，ASK调制电流为7mA（均方根）。虽然需要进一步研究以确保其安全性，但新开发的TCS有望成为下一代经皮通信设备。

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