Noninvasive center venous pressure measuring ruler

The invention relates to a noninvasive center venous pressure measuring ruler. The noninvasive center venous pressure measuring ruler is composed of a vertical ruler, a horizon bar, a cannula and a heavy hammer line. The vertical ruler and the horizon bar penetrate through the cannula and are perpendicular to each other, when the heavy hammer line is parallel to the vertical ruler and one end of the horizon bar attaches closely to a jugular pulse point, and the zero end of the vertical ruler attaches closely to a sternal angle, a scale numerical value of the cannula on the vertical ruler is read out, and central venous pressure can be extrapolated. 种用于无创测量中心静脉压的测量尺，该无创中心静脉压测量尺由垂直标尺、水平杆、套管及重锤线组成，垂直标尺和水平杆穿过套管相互垂直，当重锤线与垂直标尺平行且水平杆端紧贴颈静脉搏动点、垂直标尺零点端紧贴胸骨角，读出套管在垂直标尺上的刻度数值，即可推算出中心静脉压。