A device (1) for the deployment of a guidewire system within a cardiac chamber, comprising an introducer catheter (10) having at least one primary through lumen (12) and at least one secondary through lumen (18), Within the main lumen are placed at least two first guide catheters (14) having respective deflected or deflectable distal ends (38) adapted to emerge from the distal end of the introducer catheter to transport and direct the distal ends (47) of the wires respective guides (46) positioned within the guide catheters towards a capture member of a capture system (22) which is provided within the secondary lumen of the introducer catheter and can respectively be drawn out of and retracted into the same, the Capture member is provided with a distal gripping means (48) to capture the distal ends (47) of the guide wires (46) and draw them toward the introducer catheter , wherein the secondary lumen comprises a rectilinear portion (28) and a curvature with respect to the axis of advancement in the main lumen, and terminates in a distal hole (32) located on the lateral surface (34) of the introducer catheter.Un dispositivo (1) para el despliegue de un sistema de alambres guías dentro de una cámara cardíaca, que comprende un catéter introductor (10) que tiene al menos un lumen pasante principal (12) y al menos un lumen pasante secundario (18), dentro del lumen principal se colocan al menos dos primeros catéteres guías (14) que tienen extremos distales respectivos desviados o que pueden desviarse (38) adaptados para emerger del extremo distal del catéter introductor para transportar y dirigir los extremos distales (47) de los alambres guías respectivos (46) colocados dentro de los catéteres guías hacia un miembro de captura de un sistema de captura (22) el cual se proporciona dentro del lumen secundario del catéter introductor y puede arrastrarse respectivamente fuera de y retraerse hacia el interior del mismo, el miembro de captura se proporciona con un medio de agar
