便携式创面灌注-负压治疗装置的研制

Development of portable device for wound perfusion and negative-pressure therapy

目的:为解决现有创面灌注-负压治疗装置便携性差的不足,研制一种便携式创面灌注-负压治疗装置。方法:以一体化废液/储液罐为结构基础,采用柔性材料制作储液袋和废液袋,利用隔板动态分隔储液袋和废液袋空间;以废液袋中液体重力和弹簧弹力实现创面灌注功能;以弹簧弹力和真空泵实现创面负压功能;单片机根据管道流量计和压力传感器信息控制管道电磁阀开闭,达到创面定量灌注、创面稳定负压以及灌注/负压功能转化的目的。结果:该装置通过动态调节废液袋和储液袋容积,缩小了装置体积;同时利用液体重力和弹簧弹力,降低了装置功耗。结论:该装置较现有创面灌注-负压治疗装置而言便携性更高,有利于创面灌注-负压治疗技术的临床推广。

To developa portable device for wound perfusion and negative-pressure therapy to solve the problemof the existing one. The device useda unified waste liquid tank / liquid reservoir as the infrastructure, and had itsreservoir and waste liquid bags made of flexible materials. Dynamic isolation between the reservoir bag and waste liquid bagwas realized bya separator. Wound perfusion was implemented by the gravity of the waste liquid and the elastic force of thespring, and negative-pressure therapy was carried out by the elastic force and vacuum pump. The SCM regulated theswitching of the electromagnetic valve according to the information from the flow meter and pressure sensor so as to performquantitative wound perfusion, stable negative-pressure therapy and switching between the functions of perfusion andnegative-pressure therapy. The device volume was decreased by regulating dynamically the sizes of reservoir andwaste liquid bags, and the power consumption was also reduced by using liquid gravity and spring force. Thewound perfusion and negative-pressure therapy device gains advantage over the existing one in portability, and thus is ofsignificance for promoting the technology of wound perfusion and negative-pressure therapy.