CN204618222U - 一种便携式激光散斑血流仪 - Google Patents

一种便携式激光散斑血流仪 Download PDF

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CN204618222U
CN204618222U CN201520207194.2U CN201520207194U CN204618222U CN 204618222 U CN204618222 U CN 204618222U CN 201520207194 U CN201520207194 U CN 201520207194U CN 204618222 U CN204618222 U CN 204618222U
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孔平
杨晖
郑刚
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SHANGHAI MEDICAL INSTRUMENTATION COLLEGE
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SHANGHAI MEDICAL INSTRUMENTATION COLLEGE
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Abstract

本实用新型涉及一种便携式激光散斑血流仪，半导体激光器发出的激光经过凹透镜发散后照射到皮肤表面形成散斑，由CCD相机对散斑进行成像，并把图像发送到嵌入式ARM系统进行分析和处理，最后把形成的血流影像发送到LED触摸屏显示。

Description

一种便携式激光散斑血流仪
技术领域
本实用新型涉及一种血流成像仪器，特别涉及一种便携式激光散斑血流仪器。
背景技术
激光散斑血流成像技术是近年来新出现的一种快速血流检测方法，具有光学成像无电离辐射、非接触测量的优势，该技术是利用生物组织后向散斑来获取相对血流速度信息，通过成像方式即获得全场的二维高分辨率血流分布图像，无需结合机械扫描；无需注入造影剂等外源性物质，可实现长时间连续的血流监测；结合CCD相机图像采集设备及高性能并行运算设备，该技术可达到微米量级的空间分辨率和毫秒量级的时间分辨率，真正实现了实时高分辨血流成像；散斑血流成像系统简单有效，通过其他成像技术相结合，可以用于测量血管管径、血管密度、血液流速和血流灌注等微循环参数，通过考察微循环血管的结构，微循环功能以及代谢活动，可以研究炎症、水肿、出血、过敏、休克、肿瘤、烧伤、冻伤、放射损伤等基本病理过程中，微循环改变的规律及其病理机制，对疾病诊断、病情分析和救治措施都具有重要的意义。
但目前的激光散斑血流仪都是基于台式电脑开发的，移动性较差，无法用于一些突发医疗现场，如：地震灾区、急救车等。因此，迫切需要开发一种移动性好的激光散斑血流成像仪器。
发明内容
为了解决现有的激光散斑血流仪移动性差的问题，本实用新型提供了一种便携式激光散斑血流仪，该装置不仅能快速准确实现血流成像，而且具有体积小、易于携带，移动性好的优点。
本实用新型的技术方案为：一种便携式激光散斑血流仪，半导体激光器发出的激光经过凹透镜发散后照射到皮肤表面形成散斑，由CCD相机对散斑进行成像，并把图像发送到嵌入式ARM系统进行分析和处理，最后把形成的血流影像发送到LED触摸屏显示。
本实用新型的有益效果在于：采用嵌入式ARM系统开发的便携式激光散斑血流仪具有体积小和移动性好的优点。
附图说明
图1为本实用新型一种便携式激光散斑血流仪结构示意图。
图中1.便携式血流仪外壳，2.电源模块，3.LED触摸屏，4.嵌入式ARM系统，5.CCD相机及镜头，6.凹透镜，7.半导体激光器。
具体实施方式
如图1所示，由电源模块(2)给LED触摸屏(3)、嵌入式ARM系统(4)、CCD相机(5)、以及半导体激光器(7)供电，半导体激光器(7)发出的激光经过凹透镜(6)发散后照射到皮肤表面形成散斑，由CCD相机及镜头(5)对散斑进行成像，并把图像发送到嵌入式ARM系统(4)进行分析和处理，最后把形成的血流影像发送到LED触摸屏(3)显示。
本装置的操作步骤为：
1)打开便携式血流仪1，启动电源模块2；
2)半导体激光器7发出的激光经过凹透镜6发散后照射到需要成像的皮肤表面形成散斑；
3)CCD相机及镜头5对散斑进行成像，并把图像发送到嵌入式ARM系统4；
4)嵌入式ARM系统4对散斑图像进行分析和处理，得到血流影像，并发送到LED触摸屏3；
5)LED触摸屏3实时显示血流图像。

Claims (1)

1.一种便携式激光散斑血流仪，由便携式血流仪外壳、电源模块、LED触摸屏、嵌入式ARM系统、CCD相机及镜头、凹透镜、半导体激光器组成，其特征在于，半导体激光器发出的激光经过凹透镜发散后照射到皮肤表面形成散斑，由CCD相机对散斑进行成像，并把图像发送到嵌入式ARM系统进行分析和处理，最后把形成的血流影像发送到LED触摸屏显示。
CN201520207194.2U 2015-04-08 2015-04-08 一种便携式激光散斑血流仪 Expired - Fee Related CN204618222U (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106725349A (zh) * 2017-02-28 2017-05-31 武汉迅微光电技术有限公司 一种可检测血流的皮肤镜
CN109124616A (zh) * 2018-09-30 2019-01-04 南京国科医工科技发展有限公司 断指再植术后血液微循环评估设备
CN111568407A (zh) * 2020-05-28 2020-08-25 上海理工大学 一种基于激光散斑血流仪判定患者休克发展阶段的方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106725349A (zh) * 2017-02-28 2017-05-31 武汉迅微光电技术有限公司 一种可检测血流的皮肤镜
CN109124616A (zh) * 2018-09-30 2019-01-04 南京国科医工科技发展有限公司 断指再植术后血液微循环评估设备
CN111568407A (zh) * 2020-05-28 2020-08-25 上海理工大学 一种基于激光散斑血流仪判定患者休克发展阶段的方法
CN111568407B (zh) * 2020-05-28 2023-04-25 上海理工大学 一种基于激光散斑血流仪判定患者休克发展阶段的系统

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