Bond Graph modeling of the human esophagus and analysis considering the interference in the fullness of an individual by reducing mechanical esophageal flow
Rev. bras. eng. biomed
; 29(3): 286-297, set. 2013. ilus, tab
Article
in En
| LILACS
| ID: lil-690217
Responsible library:
BR1.1
ABSTRACT
INTRODUCTION:
This paper shows a proposal for the mathematical modeling of the human esophagus using Bond Graph formalism and the interference in the satiation of an individual by way of an Esophageal Flow Controller (EFC). Therefore, it was evaluated that there is a significant change in fall time that affects the process of human satiety when the diameter of the esophagus is reduced.METHODS:
As a first study, the analysis did not consider all hypothetical influences; only the most important variables were considered.RESULTS:
As a result, the order of the final equation was x ∈ ℜ10. Furthermore, the designed model can be classified as linear, established and time invariant.CONCLUSION:
The simulation results allow us to conclude that using the EFC in order to reduce the esophageal diameter in the upper esophageal sphincter area of 3cm by 1 cm implies that the system response will be slower; and consequently this reduction will interfere with satiety.
Full text:
1
Collection:
01-internacional
Database:
LILACS
Type of study:
Prognostic_studies
Language:
En
Journal:
Rev. bras. eng. biomed
Journal subject:
ENGENHARIA BIOMEDICA
Year:
2013
Document type:
Article
Affiliation country:
Brazil