Graichen F, Bergmann G, Rohlmann A
Orthopädische Klinik, Freien Universität im Oskar-Helene-Heim, Berlin.
Biomed Tech (Berl). 1994 Oct;39(10):251-8. doi: 10.1515/bmte.1994.39.10.251.
For stabilizing fractures of the spine, a number of implantable devices are available. However, not much is known about the loads acting on these devices. In order to measure the forces and moments within the implant, the Dick internal fixation device was modified and fitted out with a hermetically sealed inductively powered telemetry unit. An integrated 8-channel telemetry chip was specially developed to measure the signals of six strain gauge sensors, the temperature of the implant and the supply voltage. Since the internal fixation devices are always implanted in pairs, two telemetry units are operated at the same time. This article details the function of the implanted electronic circuit and the external system components.
对于脊柱骨折的固定，有多种可植入装置可供使用。然而，人们对作用在这些装置上的载荷了解不多。为了测量植入物内部的力和力矩，对迪克内固定装置进行了改进，并配备了一个气密密封的感应供电遥测单元。专门开发了一种集成8通道遥测芯片，用于测量六个应变片传感器的信号、植入物的温度和电源电压。由于内固定装置总是成对植入，因此两个遥测单元同时运行。本文详细介绍了植入式电子电路和外部系统组件的功能。
