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

FIELD: medical equipment.

SUBSTANCE: invention relates to medical equipment, namely to devices 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 in the first direction behind a rear end of cylinder (16, 116), opposite to open issuing end (17), and is directed to receiving unit (10), non-return valve (18) closing open issuing end (17), and stretching device (S), which is attached to pusher rod (35, 135) and is placed in receiving unit (10). Stretching device (S) has inclined guide rail (52) made with the possibility of being rotated by means of motor (12), and has inclined track (53) extending along a screw line. In this case, inclined track (53) ascends from the first plateau, along inclined area (S1, S2), to the second plateau and descends from the second plateau to the first plateau through transition side (46). At the same time, stretching device (S) additionally has roller (51), which touches inclined track (53), and which is installed with the possibility of rotation in drive device (50), which is attached to the end of pusher rod (35, 135), which protrudes from cylinder (16, 116), and, consequently, during rotation of inclined guide rail (52), inclined track (53) passes under roller (51), which, thus, is rotated. In this case, the inclined area of inclined track (53) has first fragment (S1) adjacent to the first plateau and adjacent second fragment (S2), and inclination of second fragment (S2) is more than inclination of first fragment (S1).

EFFECT: obtainment of a fluid injection device.

16 cl, 17 dwg