The invention relates to a spreadable medical instrument for endoscopic interventions having a base body, a handle positioned on the base body, and at least two spatula blades that are connected with the handle and can be displaced between a closed starting position and at least one working position parallel and/or at an angle to one another by means of an adjustment device, in such a way that the adjustment mechanism is positioned on the handle so that it is possible simultaneously to grip the handle and activate the adjustment mechanism with the same hand. To create a spreadable medical instrument that has the widest possible range of applications and is easy and safe to operate, it is proposed with the invention that the adjustment mechanism is configured as a continuous, adjustable screw-in mechanism.
