Electric or pneumatic continuous syringe

Abstract

The invention discloses an electric or pneumatic continuous syringe. The syringe comprises a T-shaped handle, wherein a penetrating through hole is formed in the handle; a ladder-shaped sleeve is arranged at one end of the through hole, the small-sized end of the sleeve is arranged in the through hole, a medicinal liquid cylinder is detachably connected with big-sized end of the sleeve through a connecting structure; a push rod is arranged on the medicinal liquid cylinder in a sliding manner; the other end of the push rod is fixedly connected with a movable rod of a push rod driving mechanism;the push rod driving mechanism comprises a cylinder and a movable rod, and two ends of the movable rod extend out of the cylinder; a piston is arranged in the middle of the movable rod; two sides ofthe piston on the cylinder are respectively connected one end of each air pipe, and the other end of each air pipe is respectively connected with the P opening and T opening of a three-position four-way directional control valve or two-position four-way directional control valve; holes to be penetrated by the two air pipes are formed in the shell of the handle; and the A opening and B opening of the three-position four-way directional control valve or two-position four-way directional control valve are respectively connected with an exhaust pipe and an air pump. The electric or pneumatic continuous syringe can be used for continuously injecting medicines by adopting pneumatic driving or electric driving, so that the injection fatigue can be reduced, and the injection accuracy can be improved.

Description

technical field

[0001] The invention relates to an electric or pneumatic continuous injector. Background technique

[0002] Most of the current syringes use manual methods, which are prone to fatigue when too many injections are made. The authorized notification number is CN105997290 B patent: a step-by-step continuous syringe, which includes a cylinder and a piston rod. The end of the piston rod is connected to a piston. The piston is located in the cylinder. A liquid bottle fixer is connected to the top, and an adjustment device is connected to the cylinder body. The adjustment device includes a hollow shell and a positioning pin. A dispatching disc is installed in the housing. The dispatching disc includes a fixing part and a positioning part. The fixing part includes buckles and The positioning ring, the snap button and the positioning ring are the same as the fixed scheduling disc, the positioning part includes a positioning groove and a gear groove, the positioning pi...

Images