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In this book the author describes his modifications in the technic and instruments used by Garcia Vicente of Madrid for local medication of the bronchi and lungs by the transglottic route. After working with Garcia Vicente, he was much impressed with the value of the latter's methods and introduced them in Argentina. However, he felt that the technic and instruments were still not perfect and proceeded to modify them. For example, he changed to a more obtuse angle the tip of the syringe used for transglottic intratracheal injection, as well as the forceps used for introducing catheters. He also replaced the cone-shaped end of the tip of the syringe with a small olive perforated on all sides so as to permit more equal distribution of the medicament over the tracheal mucosa as soon as it is injected. De Pablo advocates the use of semirigid catheters for aspiration of the bronchi,
Medicación local pulmonar por via intratraqueal. JAMA. 1934;103(13):1018-1019. doi:10.1001/jama.1934.02750390062040