A medical cross connector comprising: - a cross strut for connecting two longitudinal rods which can be brought into operative engagement preferably with pedicle screws or similar bone implants, in particular for orientation of vertebrae of a spinal column, and - at least one clamping head being mounted pivotably on the cross strut in an angular bearing (S2) and having a trough-shaped rod receptacle and a clamping screw , wherein the clamping screw , when actuated, applies a clamping force to the at least one longitudinal rod inserted into the rod receptacle by means of a clamping tooth mounted pivotably about a pivot axis (A1) via a rocker bearing (S1), and at the same time or with a time offset fixes an angular position (α) of the angular bearing (S2) between the clamping head and the cross strut , characterized in that the rocker bearing (S1) is configured as a floating bearing, wherein the floating bearing permits a pivoting movement and a lateral movement (V) of the pivot axis (A1) of the clamping tooth , wherein the lateral movement is generated due to clamping forces between the longitudinal rod and the clamping tooth , which acts in a fixing and/or locking manner on the angular position (α) of the angular bearing (S2) between the clamping head and the cross strut by reversing the force flow. - a cross strut for connecting two longitudinal rods which can be brought into operative engagement preferably with pedicle screws or similar bone implants, in particular for orientation of vertebrae of a spinal column, and - at least one clamping head being mounted pivotably on the cross strut in an angular bearing (S2) and having a trough-shaped rod receptacle and a clamping screw , wherein the clamping screw , when actuated, applies a clamping force to the at least one longitudinal rod inserted into the rod receptacle by means of a clamping tooth mounted pivotably about a pivot axis (A1) via a rocker bearing (S1), and at the same time or with a time offset fixes an angular position (α) of the angular bearing (S2) between the clamping head and the cross strut , characterized in that the rocker bearing (S1) is configured as a floating bearing, wherein the floating bearing permits a pivoting movement and a lateral movement (V) of the pivot axis (A1) of the clamping tooth , wherein the lateral movement is generated due to clamping forces between the longitudinal rod and the clamping tooth , which acts in a fixing and/or locking manner on the angular position (α) of the angular bearing (S2) between the clamping head and the cross strut by reversing the force flow. wherein the clamping screw , when actuated, applies a clamping force to the at least one longitudinal rod inserted into the rod receptacle by means of a clamping tooth mounted pivotably about a pivot axis (A1) via a rocker bearing (S1), and at the same time or with a time offset fixes an angular position (α) of the angular bearing (S2) between the clamping head and the cross strut , characterized in that the rocker bearing (S1) is configured as a floating bearing, wherein the floating bearing permits a pivoting movement and a lateral movement (V) of the pivot axis (A1) of the clamping tooth , wherein the lateral movement is generated due to clamping forces between the longitudinal rod and the clamping tooth , which acts in a fixing and/or locking manner on the angular position (α) of the angular bearing (S2) between the clamping head and the cross strut by reversing the force flow. <EOS>