Jacket of safety type injector

Abstract

The invention discloses a jacket of a safety type injector. A core pin is provided with an apparatus cavity which is arranged with an opening and an entry needle; the same side of the rear part of theouter wall of the jacket and an apparatus cavity of the core rod is provided with an axial entry needle guiding slot; outsides of rib bars at both sides of the axial entry needle guiding slot are provided with wing pieces obliquely extended towards both sides of the axial entry needle guiding slot. When the entry needle inserted on a conical head of the jacket is taken off, a needle point of theentry needle is backwards moved along the entry needle guiding slot; the wing pieces at both sides of the entry needle guiding slot are good for guiding the needle point of the entry needle into the entry needle guiding slot; rib bars at both sides of the entry needle guiding slot can prevent the needle point of the entry needle from slipping out the entry needle guiding slot when backwards movingalong the entry needle guiding slot until the entry needle enters the apparatus cavity of the core rod from the lateral opening of the apparatus cavity of the core rod. The jacket cannot contact theneedle head during the operation process, thereby avoiding the serious injury to a human body by a bacteria-bearing entry needle.

Description

technical field [0001] The present invention relates to various safe syringes, in particular to various safe disposable aseptic syringes, more particularly to various safe self-destruction disposable sterile syringes. Background technique [0002] Various syringes can be used to inject and output various liquids, can also be used to pump various liquids, can also be used to mix various liquids or mix various liquids with powders, and can also be used to pump in containers Liquid, or mixing various liquids, or mixing liquid and powder, can also be used for rinsing or cleaning objects. After the injection needles are inserted into the cones of various syringes, various medicaments can be injected into the subcutaneous, muscle, blood vessels or other tissues and organs of the human body or animals, and various drugs can also be sucked from the tissues and organs of the human body or animals. liquid. [0003] Known conventional single-use sterile syringes include a sheath and ...

AI Technical Summary

Problems solved by technology

The second kind of dissatisfaction is that the disposable sterile syringe and the injection needle with the sheath are placed separately in the packing box; Take out the injection needle from the packaging box, then remove the sheath and install the injection needle on the syringe; after use, you need to remove the injection needle from the syringe, and then find the sheath to cover the injection needle, or use it directly The sheath covers the injection needle installed on the syringe to prevent the exposed injection needle from harming the human body; the whole operation process is cumbersome and can easily cause injury to the user

The fourth unsatisfactory point of the above-mentioned various safety syringes is that there is a clearance fit between the injection needle of the safety disposable sterile syringe and the overcoat, and the injection needle of the disposable sterile syringe is inserted into the human body. In muscles and blood vessels, the needle tip of the injection needle is prone to swing, resulting in misoperation

[0006] From the above, it can be clearly seen that the known safety syringes still need to be further improved, so that the production cost of the safety syringes is lower, the safety syringes are safer and more convenient to use, and the safety syringes are easier to destroy after use.

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