| Summary: | 碩士 === 義守大學 === 機械與自動化工程學系碩士班 === 97 === The purpose of this research is to develop a USB commutable, low-cost, and light weight vacuum-assisted wound closing (VAC) system. VAC therapy has been widely used in the treatment of a variety of wound types by utilizing negative pressure. The incorporation of PC through USB, absent in the current systems, makes an easier operation and allows physicians to extract treatment data. The system is divided into master and slave, each with its own hardware and software and each with a BASIC Stamp 2 (BS2) microcontroller as the control. The hardware consists of a liquid crystal display device, buttons, and circuitry in the master side, while a vacuum pump, a pressure sensor, and a timer in the slave side. The software in the master controls the interaction with users and PC. User’s settings are sent to the slave. The task of the software in the slave is to drive the vacuum pump according to the difference between received settings and the feedback from the pressure sensor. A window-based program is developed to communicate with the VAC system. Some experiments: the accuracy and speed to achieve set pressure, and the performance of the system under leak, have been made to verify the system. The results are satisfying.
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