Numerical study on the effect of the geometry size of multi-chamber infusion bag on its bursting force.
10.7507/1001-5515.202008021
- Author:
Zidong FAN
1
;
Guanshi WANG
1
;
Huaijun YUE
1
;
Wentao JIANG
1
;
Zhenting DU
1
;
Hongbo TAN
2
;
Wenjun LIU
2
Author Information
1. Department of Mechanics & Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, P.R.China.
2. Sichuan Kelun Pharmaceutical Co.Ltd, Chengdu 610500, P.R.China.
- Publication Type:Journal Article
- Keywords:
bursting force;
fluid cavity;
fluid-structure coupling;
geometry size;
multi-chamber infusion bag
- From:
Journal of Biomedical Engineering
2021;38(4):716-721
- CountryChina
- Language:Chinese
-
Abstract:
This study explored the variation of bursting force of multi-chamber infusion bag with different geometry size, providing guidance for its optimal design. Models of single-chamber infusion bag with different size were established. The finite element based on fluid cavity method was adopted to calculate the fluid-solid coupling deformation process of infusion bag to obtain corresponding critical bursting force. As a result, we proposed an empirical formula predicting the critical bursting force of one chamber infusion bag with specified geometry size. Besides, a theoretical analysis, which determines the force condition of three chamber infusion bag when falling from high altitude, was conducted. The proportion of force loaded on different chamber was gained. The results indicated that critical bursting force is positively related to the length and width of the chamber, and negatively related to the height of the chamber. While the infusion bag falling, the impact force loaded on each chamber is proportional to the total liquid within it. To raise the critical bursting force of in fusion bag, a greater length and width corresponding to reduced height are recommended considering the volume of liquid needed to be filled in.
