1. Device (8) for determining the actual boundaries of the layers of body tissue (14), including: - a probe (10) for obtaining (S12) two or more ultrasound images (36) in adjacent positions of the surface (12) of the body (14) , - a transducer (44) for separately converting (S14) the aforementioned ultrasound images (36) into depth signals (46), the depth signal (46) being formed by summing the intensities of one of the mentioned ultrasound images (36) along the line (66), along a substance of constant depth in the body (14), the detector (48) for detecting (S16) and suitable boundaries (50) of the tissue layers for the ultrasound image (36) by threshold processing of the depth signal (46) obtained for said ultrasound image (36), a selection tool (52) for selecting (S18) from the set of suitable boundaries (50) fabric layers of the nearest suitable border (54) of the fabric layers that is closest to the surface (12) of the body (14), and - processing means (56) for determining the actual border (58) of the fabric layers from the nearest suitable borders (54) layers of tissue obtained for various ultrasound images (36) .2. The device (8) according to claim 1, characterized in that the selection means (52) is configured to select (S18) the nearest suitable border (54) of the fabric layers only among those suitable borders (50) of the fabric layers that have a width of the fabric border, exceeding the minimum width (64) of the fabric border. 3. The device (8) according to claim 1, wherein said boundaries of fabric layers are depth values, and said means for determining (S20) the actual boundary (58) of fabric layers is based on averaging said closest suitable boundaries (54) of fabric layers selected for different �1. Устройство (8) для определения фактических границ слоев ткани тела (14), включающее в себя:- зонд (10) для получения (S12) двух или более ультразвуковых изображений (36) в смежных положениях поверхности (12) тела (14),- преобразователь (44) для раздельног
