Central venous pressure measure laser positioning rule

The utility model discloses a central venous pressure measure laser positioning rule which comprises a dividing rule and a laser positioning device used for sending out laser beams to indicate a patient heart zero point, and the laser positioning device is arranged at a position of the mark zero of the dividing rule. When the central venous pressure measure laser positioning rule is in a working state, the laser beams sent out by the laser positioning device is perpendicular to a plane of the dividing rule and directed at the patient heart zero point to achieve zero point positioning, the laser positioning rule further comprises a guide rod, the dividing rule is connected with the guide rod through a sliding structure, so that the dividing rule is enabled to move longitudinally along the guide rod. According to the central venous pressure measure laser positioning rule, the laser positioning device is adopted to send out the laser beams for auxiliary zero point positioning, operation is convenient, the laser