FLUID INJECTION DEVICE Russian patent published in 2023 - IPC A61M5/20 A61M5/30 

FIELD: medical equipment.

SUBSTANCE: invention relates to medical equipment, namely to a device for fluid injection through animal skin. The device contains cylinder (16, 116), which has open issuing end (17), pusher (36), which can be moved between a front and rear edge position in cylinder (16, 116) and is connected to pusher rod (35), which protrudes outside a rear end of cylinder (16, 116), opposite to open issuing end (17), in the first direction and is directed to receiving unit (10), non-return valve (18), which closes open issuing end (17), and stretching device (S), which is attached to an end of pusher rod (35, 135) and is placed in receiving unit (10). When pusher (36) is in the front edge position, stretching device (S) can move pusher rod (35, 135) in the first direction during stretching until pusher (36) is in a rear finite position so that to fill cylinder (16, 116) with fluid, which should be injected, and preliminary stretch pusher rod (35, 135) towards open issuing end (17), and, when pusher (36) is in the rear edge position, stretching device (S) can release pusher rod (35, 135) during issuing, so that pusher (36) is moved opposite to the first direction to the front edge position based on applied preliminary stretching, and, thus, fluid in cylinder (16, 116) is issued through non-return valve (18) for injection, while receiving unit (10) is made as receiving unit (10) consisting of a single part, which is produced by an additive production process.

EFFECT: obtainment of a fluid injection device.

16 cl, 17 dwg