Development of the pressure and share forces control system and its blood flow analysis to solve the mechanism of pressure ulcers

开发压力和共享力控制系统及其血流分析以解决压疮的机制

基本信息

批准号：
15500387
负责人：
KOMEDA Takashi
金额：
$ 2.3万
依托单位：
Shibaura Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2005
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15500387/
关键词：
pressure ulcers pressure share force blood flow stress concentration

项目摘要

It is said that pressure ulcers is caused by not only the pressure to but also the share force to human body. In this research, we developed a mechanical system which has the mechanism to give the pressure and the share force to the sacral part of human body. This mechanism has two motors to give two forces and three load cell sensors to measure forces. Therefore, this system can control the value of the pressure and the share force using load cell data and motors, it is possible to give a certain controlled load to human body. And also, this system can measure the blood flow using Laser Doppler flow meter at the part of the force loaded.Using this system, we did experiments to measure the blood flow when we gave certain forces. We give the pressure forces 6kPa,10kPa,14kPa and these pressure forces plus the share force 4.5N. We evaluated the damage of each condition by the reactive hyperemia using the data of the blood flow. We got following results though these experiments and analysis.1.The reactive hyperemia is bigger according to the pressure force value, the damage to the human body is coming bigger.2.When we give both pressure and share forces, the reactive hyperemia is bigger than the only pressure3.The share force is more effective than the pressure.4.There is no influence of the share force if the pressure is small value.In these results, the share force has strong relation to pressure ulcers and it is important to pay attention to the share force to prevent pressure ulcers.

据说压力溃疡不仅是由压力的压力引起的，而且是对人体的份额。在这项研究中，我们开发了一种机械系统，该机械系统具有将压力和股本赋予人体萨克拉部分的机制。该机制具有两个电动机，可以给出两个力和三个负载电池传感器来测量力。因此，该系统可以使用负载电池数据和电动机来控制压力的值和股权的价值，可以为人体提供一定的控制负载。而且，该系统可以使用加载力的一部分的激光多普勒流量计测量血流。使用该系统，我们进行了实验以测量某些力时测量血流。我们给出压力6KPA，10KPA，14KPA和这些压力力以及股本4.5N的压力。我们使用血流数据通过反应性充血评估了每种情况的损害。我们得到了以下结果。1。反应性高血症根据压力力的价值，人体的损害更大，人体的损害要大。防止压力溃疡。