首页>
外国专利>
Non-invasive method for estimating of the variation of the clucose level in the blood of a person and apparatur for carrying out the method
Non-invasive method for estimating of the variation of the clucose level in the blood of a person and apparatur for carrying out the method
展开▼
机译:用于估计人的血液中葡萄糖水平变化的非侵入性方法以及用于执行该方法的设备
展开▼
页面导航
摘要
著录项
相似文献
摘要
For the estimation of the variation of the glucose level in the blood of a person the present invention uses the variation of the volume of the interstitial fluid compartments in muscular tissue due to a shift of fluid between the extracellular and intracellular compartments caused by variations of the osmotic pressure of the extracellular fluids which is in turn correlated with the glucose level. The variation of the volume of the interstitial fluid compartments is detected by means of a non-invasive conductometry measurement using electrodes placed in contact with the skin of the person overlying a portion of soft tissue including muscular fibers. To eliminate the adverse effect of the conductivity of the capillary vessels the invention measures the conductivity of the tissue independently in two directions, namely parallel and transverse to the muscular fibers. Because of the chaotic orientation of the capillary vessels, a variation of the conductivity caused by a variation of the volume of the vessels should be almost equal in both measuring directions. On the other hand, the conductivity parallel to the muscular fibers is in a larger scale determined by the volume of the interstitial fluid than transverse to the muscular fibers. A variation of the volume of the interstitial compartment thereby has a greater effect on the conductivity parallel than transverse to the muscular fibers.
展开▼