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Mechanical Properties of the Human Stomach under Uniaxial Stress Action


Affiliations
1 Institute of Medical Engineering, Department of Machines and Vehicles Design, Gdansk University of Technology, G. Narutowicza Str, 11/12, 80-233 Gdansk, Poland
2 Department of General, Endocrine and Transplant Surgery, Medical University of Gdansk, Smoluchowskiego Str, 17, 80-214 Gdansk, Poland
 

The aim of this study was to estimate the range of mechanical properties of the human stomach in order to use the collected data in numerical modelling of surgical stapling during resections of the stomach. The biomedical tests were conducted in a self-developed tensile test machine. Twenty-two fresh human stomach specimens were used for the experimental study of its general strength. The specimens were obtained from morbidly obese patients on whom sleeve gastrectomy was performed. Finally, data on mechanical properties of the stomach wall with detailed analysis of anatomical regions of the stomach have been presented.

Keywords

Human Stomach, Sleeve Gastrectomy, Uniaxial Stretch, Mechanical Properties.
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  • Mechanical Properties of the Human Stomach under Uniaxial Stress Action

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Authors

Grzegorz Rotta
Institute of Medical Engineering, Department of Machines and Vehicles Design, Gdansk University of Technology, G. Narutowicza Str, 11/12, 80-233 Gdansk, Poland
Jarosław Kobiela
Department of General, Endocrine and Transplant Surgery, Medical University of Gdansk, Smoluchowskiego Str, 17, 80-214 Gdansk, Poland
Szymon Grymek
Institute of Medical Engineering, Department of Machines and Vehicles Design, Gdansk University of Technology, G. Narutowicza Str, 11/12, 80-233 Gdansk, Poland
Magdalena Karczewska
Institute of Medical Engineering, Department of Machines and Vehicles Design, Gdansk University of Technology, G. Narutowicza Str, 11/12, 80-233 Gdansk, Poland

Abstract


The aim of this study was to estimate the range of mechanical properties of the human stomach in order to use the collected data in numerical modelling of surgical stapling during resections of the stomach. The biomedical tests were conducted in a self-developed tensile test machine. Twenty-two fresh human stomach specimens were used for the experimental study of its general strength. The specimens were obtained from morbidly obese patients on whom sleeve gastrectomy was performed. Finally, data on mechanical properties of the stomach wall with detailed analysis of anatomical regions of the stomach have been presented.

Keywords


Human Stomach, Sleeve Gastrectomy, Uniaxial Stretch, Mechanical Properties.

References





DOI: https://doi.org/10.18520/cs%2Fv116%2Fi11%2F1886-1893