A medical apparatus for cutting medical tubes includes a housing member having at least one opening extending through the housing member for receiving a medical tube, and defining a longitudinal axis, a blade member mounted for longitudinal movement relative to the housing member along a blade path from an initial position to an actuated position to traverse the at least one opening and cut the medical tube received therewithin and a biasing member operatively engageable with the blade member and dimensioned to bias the blade member toward the initial position. Preferably, the biasing member is a cantilever member. The cantilever member may be operatively connected to an interior of the housing member and arranged to engage the blade member in supporting relation therewith. First and second cantilever members may extend from opposed interior surfaces of the housing member. The biasing member may include a hinge about which the biasing member pivots during movement of the blade member from the initial position to the actuated position. The hinge may be a living hinge.