An integrated laser blood flowmeter

被引：47
|
作者：
Higurashi, E [1 ]
Sawada, R [1 ]
Ito, T [1 ]
机构：
[1] NTT Microsyst Integrat Labs, Kanagawa 2430198, Japan
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 2003年 / 21卷 / 03期
关键词：
blood flow; integrated optics; optical sensor; silicon micromachining; wearable sensor;
D O I：
10.1109/JLT.2003.809551
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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 min x 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.
引用
收藏
页码：591 / 595
页数：5
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