An integrated laser blood flowmeter
An integrated laser blood flowmeter
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DOI：
10.1109/jlt.2003.809551
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发表时间：
2003-03
影响因子：
4.7
通讯作者：
E. Higurashi;R. Sawada;T. Ito
中科院分区：
文献类型：
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作者：
E. Higurashi;R. Sawada;T. Ito
我们已经构建了一个非常小，重量轻的血液流量计，使用微加工和表面贴装技术的可穿戴健康监测系统。该光学系统采用混合集成结构，由波长为1310 nm的InGaAsP-InP分布反馈激光二极管（DFB-LD）、边缘照明光电二极管（PD）和聚酰亚胺波导（2 mm /spl次/ 3 mm）组成。这种集成的流量计可以直接定位在组织上，并允许实时监测毛细血管微循环。在手指中的血液灌注的体内测量证实了血液流量计的可行性。
We have constructed a very small and lightweight blood flowmeter using micromachining and surface mounting techniques for a wearable health monitoring system. The hybrid integrated structure of the optical system incorporates a InGaAsP-InP distributed feedback laser diode (DFB-LD) with a wavelength of 1310 nm, an edge-illuminated photodiode (PD) and a polyimide waveguide on silicon substrate (2 mm /spl times/ 3 mm). This integrated flowmeter can be positioned directly on the tissue and permits real-time monitoring of capillary microcirculation. In-vivo measurements of blood perfusion in a finger confirm the feasibility of the blood flowmeter.