INJECTION SYRINGE Russian patent published in 2022 - IPC A61M5/32 

FIELD: medical equipment.

SUBSTANCE: invention relates to syringes. Syringe includes a body, a piston configured to slide in the body, an injection device comprising a needle oriented along a longitudinal axis, and a case detachably attached to the body and including a needle, wherein the case includes a group of flexible collars, each provided with a stop. Piston includes a docking system equipped with a piston body, Said flange comprises flange to retain flexible flanges in piston body in inserted position whereat said flanges are fitted in piston body. At that, the group of boards contains the first board and the second board, located in the opposite areas around the longitudinal axis, wherein the flange comprises a first support area and a second support area configured to contact the first collar and the second collar, respectively, in the inserted position, wherein the first collar and the second collar are configured to provide resilient support on the first support area and on the second support area in the inserted position, respectively. At that, the first support area and the second support area are asymmetric relative to the longitudinal axis, and wherein the first support area defines the upper surface and the lower surface, between which the height of the first support area is determined, and the second support area defines an upper surface and a lower surface, between which the height of the second support area is determined, note here that first support height and second support height are equal.

EFFECT: disclosed is an injection syringe.

12 cl, 8 dwg