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de Siqueira Rodrigues Fleury Rosa S.,Faculdade UnB Gama | da Rocha A.F.,Faculdade UnB Gama | Brasil L.M.,Faculdade UnB Gama | Oliveira E.C.,Faculdade UnB Gama | And 2 more authors.
Revista Brasileira de Engenharia Biomedica | Year: 2010

This work introduces a device to aid in the treatment of obesity by controlling the flow of substances in the esophagus. In the method proposed, a device placed in the esophagus reduces its effective radius, thus reducing the flow and speed in which the food can be consumed. The basis of the method is a nearly cylindrical latex module, which is applied in the esophagus. The module's central lumen diameter is considerably smaller than the diameter of the esophagus. This limits the rate of food passage through the esophagus. The device was designed in such a way that it could control the food flow through the esophagus without causing aggression to its internal tissue and without compromising the digestion and absorption of food. The device was built using natural latex from the rubber tree Hevea brasiliensis, and was evaluated according to its construction, mechanical properties, applicability, effectiveness in reducing food flow, weight, and damage to the esophagus. The module was placed in the esophagus by means of video-endoscopy and remained in place for seven days, wherein it was accompanied by successive radiographies until its withdrawal by video-endoscopy, when we were able to examine the integrity of the esophagus wall. The results presented in this paper show that the proposed method is a new possibility for the treatment of obesity in humans and animals. © SBEB - Sociedade Brasileira de Engenharia Biomédica.

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