[Study on the biomechanical behavior of human intestine].
To investigate the biomechanical behavior of human intestines. The tensile test human intestine was performed with the electronic tension machine in this paper. The results indicate that the exponential relationship for the stress-strain of the human intestine was obtained, and the exponential coefficient a of each segment of the intestine is almost the same although the constant C is different. It also shows that the relative rate of stretch length of each segment intestines is different in longitudinal and circumferential directions. And the incremental elastic modulus of colon is less than those of small intestine. It is considered that the colon can be more easily deformed. The experimental results provide the theoretic basis for research on intestinal endoscopic microrobot.
Zhou
Dinghua
D
Department of General Surgery, The Second Artillery General Hospital, Beijing 100088, China. zhoudh@sina.com
Zhao
Wei
W
Yan
Tao
T
Zhu
Wuhui
W
Zhu
Chuhong
C
Ying
Dajun
D
D001696:Biomechanical Phenomena; D044684:Colon, Transverse / Q000502:physiology*; D004548:Elasticity; D006801:Humans; D066298:In Vitro Techniques; D007421:Intestine, Small / Q000502:physiology*; D013314:Stress, Mechanical; D013718:Tensile Strength