Study on formation process of vacuum negative pressure of micro power negative pressure technology
10.7687/J.ISSN1003-8868.2017.03.025
- VernacularTitle:微动力负压技术的真空压差形成过程及应用研究
- Author:
Chenghua MA
;
Xin HU
;
Guangbin CHENG
;
Xinsheng ZHU
- Keywords:
micro power negative pressure technology;
wound healing;
compressive material;
expansion due to liquid aspiration;
polyvinyl alcohol foam material
- From:
Chinese Medical Equipment Journal
2017;38(3):25-27
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the formation process of vacuum pressure differential of micro power negative pressure technology to facilitate its clinical application.MethodsThe formation of negative pressure differential and changes of negative pressure values in enclosure space were studied which was formed by liquid aspiration after the compressive polyvinyl alcohol foam material was enclosed.Micro power negative pressure technology was applied to the treatment of the right ear necrosis patient after focal cleaning,and the efficacy was observed.Results Medical adhesive film was raised gradually during the expansion of polyvinyl alcohol foam due to liquid aspiration,and then the enclosure space extended increasingly to form local vacuum negative pressure.The range of maximal negative pressure was between-110 and-200 Pa,and the mean maximal negative pressure value was-132.7 Pa.Micro power negative pressure technology behaved well in healing the wound.Conclusion Micro power negative pressure technology gains advantages in reliability and easy operation over other technologies and products,and may be a new choice for healing of refractory wounds.
