Fluid injector device for medical use suitable for injections of botulinum toxin and hyaluronic acid.The utility model adds new elements in addition to the original model, receives constructive change,Such as: - a step motor designed to exert sufficient force to inject hyaluronic acid low density (\"fill\") and high density (\"lift\"),In addition to allowing the use of the needle between 27 to 32, depending on the application a spring super sized to carry out a regression of the plunger of the pen applicator 12a.In order to determine more accurately the doses applied both with hyaluronic acid, as the botulinum toxin.An embedded software was dedicated to equipment, to perform all the functions described in the patent application of this utility model, giving the opportunity to the vindication requested.The utility model is working only with hyaluronic acid and botulinum toxin, the set of modifications, adaptations and additions received.They aim to incorporate current knowledge of science and to facilitate the procedures that involve the application of these drugs.To meet this request of utility model patent, all the conditions to provide greater comfort to the patient, ensure reliability in the results.To increase the level of security, improve its practicality and make the equipment more friendly to the applicator operator. .dispositivo injetor de fluidos para uso medicinal adequado para injeções de toxina botulínica e ácido hialurônico. o modelo de utilidade agrega novos elementos em adição ao modelo original, recebe mudanças construtivas, tais como: -um motor de passo dimensionado para exercer a força suficiente para injetar o ácido hialurônico baixa densidade (“fill”) e alta densidade (“lift”), além de permitir o uso de agulha entre 27 a 32g, dependendo da aplicação-uma mola super dimensionada para realizar um retrocesso do êmbolo da caneta aplicadora 12a, para determinar maior precisão das doses praticadas tanto, com o ácido hialurônico, como, para a toxina bot
