Feasibility of a remote monitoring system for patients with an implantable left ventricular assist device using Personal Handy-Phone System telecommunication technology
Feasibility of a remote monitoring system for patients with an implantable left ventricular assist device using Personal Handy-Phone System telecommunication technology
复制标题
使用个人手持电话系统电信技术对植入式左心室辅助装置患者进行远程监测系统的可行性
DOI：
10.1007/bf02479889
复制
发表时间：
2001
影响因子：
1.3
通讯作者：
Y. Mitamura
中科院分区：
文献类型：
--
作者：
E. Okamoto;E. Iwazawa;Shinya Suzuki;Shinichiro Fukuoka;Y. Mitamura
我们一直在开发一种用于植入人工心脏的患者的远程监护系统。远程监控系统由两个数字数据链路组成：体内人工心脏控制器与体外移动的计算机之间的电磁经皮数字数据传输（TDT）系统，以及移动的计算机与医院主机之间使用PHS（个人手持电话系统）的公共高速数据传输服务。TDT系统主要由载波电磁波频率为4MHz和10MHz的ASK（幅移键控）电路和相应的解调电路、发射和接收的细环形线圈天线以及用于报警系统的单片机组成，该报警系统用于指示天线在可发射范围之外的未对准，以确保数据传输无差错。在我们的远程监控系统中，电机电流和电机旋转角度数据从植入的控制器一起帧的控制代码的数据错误检查和纠正在接收站点，并通过连接到移动的计算机的PHS发送数据。GPS（全球定位系统）定位数据也与控制代码一起发送到主机。主机计算泵流出量和动脉压，并以实时波形显示数据。主机还显示患者在地图上的位置和电池的状况。研究结果表明，人工心脏的驱动状态和受试者的位置可以在主机上远程监控。可以得出结论，该监测系统是有用的植入人工心脏的患者的远程监测。
We have been developing a remote monitoring system for patients with implanted artificial hearts. The remote monitoring system consists of two digital data links: an electromagnetic transcutaneous digital-data transmission (TDT) system between an artificial heart controller inside the body and a mobile computer outside the body, and a public high-speed data transmission service using PHS (Personal Handy-Phone System) between the mobile computer and a host computer in a hospital. The TDT system mainly consists of an ASK (Amplitude Shift Keying) circuit with carrier electromagnetic wave frequencies of 4MHz and 10 MHz and corresponding demodulation circuit, thin loop coil antennas for transmission and receiving, and a one-chip microcomputer for the alarm system for indicating misalignment of antennas outside the transmittable range to ensure error-free data transmission. In our remote monitoring system, motor current and motor rotational angle data from the implanted controller are framed together by a control code for data error checking and correcting at the receiving site, and the data are sent through the PHS connected to the mobile computer. GPS (Global Positioning System) positioning data are also sent to the host computer with control codes. The host computer calculates pump outflow and arterial pressure and displays the data in real-time waveforms. The host computer also displays the patient's position on the map and the condition of the batteries. The results of this study showed that the driving condition of the artificial heart and the subject's position could be remotely monitored on the host computer. It could be concluded that this monitoring system is useful for remote monitoring of patients with an implanted artificial heart.