DRIVE UNIT FOR INDIVIDUAL CARE DEVICE Russian patent published in 2021 - IPC A61C17/34 

FIELD: hygiene; satisfaction of human vital needs.

SUBSTANCE: group of inventions relates to dental cleaning. Disclosed is a drive unit for an oral care device having a housing and comprising units of elongated flat springs, arranged symmetrically along periphery of drive unit. Each of the elongated springs units comprises a flat spring having a first segment and a second segment; first end holder and second end holder. Blocks of the elongated flat springs are fixed at the first end to the first end holder, and at the second end—to the second end holder. Drive assembly also comprises a ring surrounding units of elongated flat springs, wherein the ring is rigidly connected to each of the elongated flat spring blocks at the middle of the length of each flat spring and is made with possibility of fixed connection to the casing of the oral care device. Drive unit includes a single component made as a whole made by means of 3D printing. Also disclosed are an oral care device and a drive unit made using 3D printing.

EFFECT: higher resistance to load and fatigue.

9 cl, 8 dwg