1. Lancet device for bloodletting, comprising a housing (103, 203, 303, 403, 503) for accommodating components of the device, a lancet receiver for holding at least one lancet at least locally surrounded by the housing (103, 203, 303, 403, 503), and a cover (102, 202, 302, 402, 502, 602, 702, 802, 902, 1102, 1202, 1302, 1402, 1502, 1602) connected to the housing to accommodate the adjusting wheel (104, 204, 304 , 404, 504, 604, 704, 804, 1004, 1304, 1404, 1504) on its part (626, 726, 826), at least partially cylindrical, to adjust the length (L1, L2, L3) of the lancet extension from lanceolate device (101, 201 , 301, 401, 501) for bloodletting with the setting of most values of this length, the adjusting wheel surrounded by paw-shaped lobes (318a, 418a, 518a, 1618a, 318b, 418b, 518b, 1618b) extending in the longitudinal direction (L), so that actuation of the adjusting wheel used to adjust the extension length is possible only in peripheral parts that do not contain these shares, and there are two positioning devices (932, 1032, 1132, 1232, 1432, 15332, 1632, 934, 1034, 1334, 1434 , 1534), one of which contains the specified cover, and the other contains the specified adjusting a wheel, characterized in that the adjusting wheel (104, 204, 304, 404, 504, 604, 704, 804, 1004, 1304, 1404, 1504) contains an internal thread (624, 724, 824, 1524), and said cylindrical part ( 626, 726, 826) contains an external thread (628, 728, 828, 1328, 1528, 1628), and the threads (624, 724, 824, 1524, 628, 728, 828, 1328, 1528, 1628) are functionally connected to each other another, so that the adjusting wheel is made with the possibility of its rotation and adjustment in the longitudinal direction (L) of the housing, and the additional positioning device (934, 1034, 1334, 1434, 1534) contains teeth with side surfaces, and at least one1. Ланцетное устройство для кровопускания, содержащее корпус (103, 203, 303, 403, 503) для размещения компонентов устройства, приемник ланцета для удерж
