Development of a telemetry unit for bone strain monitoring
Development of a telemetry unit for bone strain monitoring
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开发用于骨应变监测的遥测装置
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
Mark L. Johnson
中科院分区：
文献类型：
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作者：
Fahad Moiz;W. Leon;Mark L. Johnson
介绍了一种用于监测骨骼应变的遥测装置。该单元允许研究小动物如小鼠和大鼠的骨负荷和骨量之间的关系。该装置尺寸为2.5 cm × 1.5 cm，传输测量值时功耗低于20 mA。遥测装置在离体环境下进行测试。将应变计连接到小鼠的尺骨，并将读数以76.7 kBaud的速率无线传输到远程计算机。低功耗使该装置可以由重量不到3克的小型电池供电。目前，应变计数据由台式载荷仪器和数据采集单元收集。目前的设置是准确的，但体积庞大，受试者必须被镇静和固定，以采取准确的测量。我们提出了两种设置的读数，并表明我们的遥测单元在精度上与当前设置相当，并且可以很容易地替换它。
A telemetry unit designed to monitor strain in bones is presented. This unit allows studying the relationship between bone load and bone mass in small animals such as mice and rats. The unit measures 2.5 cm × 1.5 cm and consumes less than 20 mA of power while measurements are been transmitted. The telemetry unit was tested on an ex-vivo setting. The strain gage was attached to the ulna of a mouse and the readings were wirelessly transmitted to a remote computer at the rates of 76.7 kBaud. The low power consumption allows the unit to be powered by a small battery weighing less than 3 grams. Currently, strain gage data is collected by a bench top load instrument and a data acquisition unit. The current setup is accurate but is bulky and the subjects have to be sedated and immobilized to take accurate measurements. We present the readings from both setups and show that our telemetry unit is comparable in accuracy to the current setup and can easily replace it.