Biological blood pressure sensor

The utility model discloses a biological blood pressure sensor, which belongs to the field of experimental animal blood pressure sensors, is a direct experimental animal blood pressure measurement sensor, and comprises a column body, a blood vessel cannula attached with an anti-coagulation coating is fixedly mounted on the column body, and the anti-coagulation coating is smooth and soft and is close to the endothelium of a blood vessel. Small stimulation blood cells influence and interfere with blood coagulation; the tip of the vascular cannula is provided with a pressure-sensitive element for converting pressure change into electric signal change; compared with the prior art, the blood pressure is directly measured through the blood vessel cannula pressure-sensitive element, the blood pressure sensor is miniature and small in size, and animal experiment surgery operation and use are convenient; the anticoagulant coating is smooth and soft and does not stimulate blood cells to coagulate blood, the blood vesse