1. An ultrasound probe (200) for measuring blood flow velocity in the blood vessel of the subject, the measurement depends on the reflection of the volume of the body of the subject a collimated beam of ultrasonic energy emitted by the ultrasonic transducer (100) within the scope of the subjects body part, the apparatus comprising: a block (203 ) signal input for receiving electrical signals representing the reflected ultrasonic energy received by each element (101) of the ultrasonic transducer (100) comprising a two-dimensional array of sensor elements analysis op (205) for analyzing signals for generating representations of blood flow in a plurality of predetermined locations in the volume and calculating a first flow rate in each of the locations unit (207) distinguishing for distinguishing blood flow in a blood vessel in a volume of presentation bloodstream unit (209) calculating the angle to calculate the angle between the direction of the emitted collimated beam of ultrasonic energy at a plurality of points in the bloodstream and delimited flow direction at the point as a function of differentiation ivychislitel (211) for calculating the speed of the second flow rate at a plurality of points based on the calculated velocity in the first plurality of locations and the calculated angle at a second rate for transmitting polzovatelyu.2 flow. The apparatus of claim. 1, in which the final flow rate at any point is determined only if dopplerovskiyugol at such a point is smaller than a predetermined znachenie.3. The apparatus of Claim. 1, wherein the control unit (209) determining the angle for transmitting information to the user to change the position sensor on1. Ультразвуковое устройство (200) для измерения скорости кровотока в кровеносном сосуде субъекта, причем измерение зависит от отражения от объема части тела субъекта коллимированного пучка ультразвуковой энергии, излучаемого ультразвуковым датчиком (100) в объем части тела субъекта, причем устройство содержит
