A Cannula (10) to extract irrigating Fluid, saliva and \/ or blood flow for use in the dental Field, formed by three tubular conduits (12, 14, 16) connected togetherConsisting of: - a First Hollow Branch (14), a Second Hollow Branch (16), an arched Hollow tubular part (12) connecting these two branches.This Cannula comprising: - a First Hollow tubular Member (22) which has an Axis substantially perpendicular to an Axis of the first Branch (14) and in which opens a free end of the first rAma (14), a Second tubular Member (26) to form a Hollow portion Angled with respect to the second ring (16),Whose axis is substantially perpendicular to an Axis of the second leg (16),And a free end of the Second Branch (16) is opened and which is intended to connect a Suction means (20),- at least a Second Opening (36) suitable for receiving an active End (38 ) a Collet (37) and formed in the second tubular Member (26),Characterized by at least a First Opening (34) suitable for receiving another Active End (38 ) a Collet (37) and formed a characteristic of Relief (35) of the first Branch tUbular (14).Una cánula (10) para extraer fluido de irrigación, saliva y/o flujo sanguíneo para uso en el campo dental, formado por tres conductos tubulares (14, 12, 16) conectados entre sí, que consisten en: - una primera rama tubular hueca (14), - una segunda rama tubular hueca (16), - una parte arqueada tubular hueca (12), conectando estas dos ramas, comprendiendo dicha cánula: - un primer miembro tubular hueco (22) que tiene un eje sustancialmente perpendicular a un eje de la primera rama (14) y en el que se abre un extremo libre de la primera rama (14), - un segundo miembro tubular hueco (26) que forma una porción acodada con relación a la segunda ramificación (16), cuyo eje es sustancialmente perpendicular a un eje de dicha segunda ramificación (16), y en donde un extremo libre de la segunda rama (16) se abre y que está destinado a conectarse a medios de succión (20), - al menos una segunda ab
