The fuzzy comprehensive evaluation of comfortability for patient transfer system

This paper presents a new type of patient transfer system, in which the patient transfer apparatus and walking device are separated. The transfer apparatus can move by itself and the working space is not limited. The walking device is a height adjustable stretcher, which can realize the function of supporting transfer apparatus. The fuzzy comprehensive evaluation method is used to evaluate the comfortability of patient transfer system. First of all, the evaluation factor set and the weight of factor set are determined. Then, from the evaluation experiment, the working conditions matrix, the size factors matrix, the operating convenience matrix and the appearance matrix are obtained. Finally, the evaluation analysis and the fuzzy comprehensive evaluation results are given. The experiment results show the fuzzy comprehensive evaluation method is feasible and the patient transfer system has better comfortability.