Title: Development of empirical model and controller for negative pressure wound therapy system

Authors: Henry Jimry; A. Sanjeevi Gandhi

Addresses: Karunya Institute of Technology and Sciences, Coimbatore, Tamilnadu, 641 114, India ' Karpagam College of Engineering, Coimbatore, Tamilnadu, 641 032, India

Abstract: Negative pressure wound therapy process usually helps to heal the diabetic open wound much better by applying smooth vacuum process. This therapy gives the positive effects based on the stimulation of formation of granulation tissue, blood flow, angiogenesis, cell proliferation, accelerated secondary wound closure and removal of bacteria from the wound. Generally maintaining the negative pressure in the system is a challenging task which desires the patient to feel more relaxed during the period of healing. In this work attaining and authenticating of a mathematical model of a negative pressure wound therapy system is presented. The established model is based on the vacuum system along with the pump and other elements. The objective of the model is to perform with the design and analysis of a proportional integral derivative control algorithm. It has been validated that this algorithm, is suitable in controlling the vacuum pressure in the chamber, which is based on the simulation on MATLAB Simulink.

Keywords: NPWT system; vacuum pressure; system modelling; PID algorithm; MATLAB Simulink.

DOI: 10.1504/IJBET.2020.110354

International Journal of Biomedical Engineering and Technology, 2020 Vol.34 No.1, pp.45 - 56

Received: 20 Apr 2019
Accepted: 04 Dec 2019
Published online: 15 Oct 2020 *

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