SAFE INSULIN NEEDLE ASSEMBLY Russian patent published in 2023 - IPC A61M5/32 

FIELD: medical technology.

SUBSTANCE: present invention relates to medical technology, namely to a safe insulin needle assembly containing a protective cap (1), a needle (2), a safety protective sleeve (3), a pressure seat (4) and a needle holder (5), with the needle (2) located on the central axis of the needle holder (5), the pressure seat (4) is put on the upper part of the needle holder (5); the safety protective sleeve (3) is put on the needle holder (5) and the pressure seat (4) together; the upper shield of the safety protective sleeve (3) is connected and interacts with the pressure seat (4); the needle (2) protrudes from the upper end of the upper part of the safety protective sleeve (3); the lower part of the safety protective sleeve (3) is connected and interacts with the lower part of the needle holder (5); the protective cap (1) is put on the safety protective sleeve (3) and the needle (2) together; and the lower part the protective cap (1) is connected and interacts with the lower part of the safety protective sleeve (3). Since a pressure seat (4) is additionally provided, and the structures of the connecting elements between the pressure seat (4) and the safety protective sleeve (3) and between the pressure seat (4) and the needle holder (5) are redesigned, the strength of the safety protective sleeve (3) in the axial plane is improved simultaneously with the achievement of self-locking of the safety protective sleeve (3) in the direction along the circumference and in the direction along the axis, as a result of which the strength of the structure as a whole is ensured and the safety factor of the product increases.

EFFECT: product as a whole is small in size, the component parts are installed in a compact manner with a high degree of fit and can be completely assembled in one step.

7 cl, 18 dwg