Support for a medical instrument, especially for a surgical instrument with a quick coupling (3) for receiving a connecting end (A) having an undercut (D), an instrument shaft of the medical instrument, wherein the coupling fast (3) a first coupling element (26) having a first axial through hole (5) for the connecting end (a), whereby the quick hitch (3) a second coupling element (13) with a second hole axial passage (20) for the connecting end (a) being movable second coupling element (13) relative to the first coupling element (26) in a direction transverse to the axial direction (6) of the holes of step (5, 20) from a locking position in which the first and second hole (5, 20) are relatively displaced with respect to each other so that an edge (24) of the second orifice passage (20) goes behind the undercut (D) of the connecting end (A) of the instrument shaft and lock to an unlocked position in which the first hole (5) and the second axial through hole (20) are aligned at least in the extent necessary for the connecting end (a) can circulate freely through the two holes (5, 20), characterized in that the first coupling element (26) and the second coupling element (13) are joined another in one piece via an elastic bridge (15) and the resilient bridge (15) biases the first coupling element (26) and the second coupling element (13) relative to each other in the locked position.Soporte para un instrumento médico, especialmente para un instrumento quirúrgico con un enganche rápido (3) para la recepción de un extremo de conexión (A), que presenta un destalonamiento (D), de un vástago de instrumento del instrumento médico, presentando el enganche rápido (3) un primer elemento de acoplamiento (26) con un primer orificio de paso axial (5) para el extremo de conexión (A), presentando el enganche rápido (3) un segundo elemento de acoplamiento (13) con un segundo orificio de paso axial (20) para el extremo de conexión (A), pudiéndose mover el segundo elemento de acoplamien
