The introduction of videolaparoscopy and its aplication to more complex and extended procedures required the development of animal models for teaching and research. In the beginning, large animals were prefered, but because of their costs and dificulties of handling, small animals were progressively more often used. Our model offers the possibility to use five small animals (rats) concomitantly with only one insuflator. The procedure is based on a system conected in series to the five animals that are submited to the same insuflation pressure facilitating the realization of any kind of experiment. We did not find any problem to maintain the pneumoperitoneum in all animals of this study.
Laparoscopy; Experimental; Rats