Safe syringe capable of preventing hands from being pricked

Abstract

The utility model relates to the field of syringes, and particularly discloses a safety syringe capable of preventing a hand from being pricked, which comprises a syringe, a storage bin is arranged on the outer side of one end of the syringe, a protection mechanism is arranged in the storage bin, the protection mechanism comprises a protection frame and a rotating lug plate, and an elastic rotating shaft is connected between the protection frame and the rotating lug plate. A guide sliding block is installed in the rotating lug plate, a limiting sliding groove is formed in the position, located on the inner side wall of the storage bin, of the outer side of the guide sliding block, an injection needle is installed at the side end, close to the storage bin, of the injector, and a needle protection pad is installed at the position, located on the outer side of the injection needle, of the end of the protection frame. The protection mechanism is wholly shifted towards the position of the injection needle, under the action of the elastic rotating shaft, the two protection frames swing in opposite directions, after the needle protection pads at the ends of the two protection frames are in overall contact, the embedded grooves in the inner sides of the needle protection pads can cover the outer sides of the ends of the injection needle, and therefore the hand pricking can be prevented when a needle cap is connected in a sleeving mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of syringe, specifically is a safe syringe of preventing pricking hand. BACKGROUND

[0002] The syringe is a common medical appliance, the process of extracting, injecting gas or liquid with needle is called injection, the syringe is composed of the needle cylinder with the small hole in the front end and the piston core rod matched with it, is used to inject a small amount of liquid or to other methods inaccessible area or from those places, liquid or gas is sucked from the small hole in the front end of the needle cylinder when the core rod is pulled out, liquid or gas is extruded when the core rod is pushed in.

[0003] However, the needle cap is usually needed to be sleeved on the outside of the needle after the syringe extracts liquid medicine, since the diameter of the needle cap is small, the condition of pricking hand is prone to occur when sleeving. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiency of prior art, the utility model provides a safe syringe of preventing pricking hand, solves the problem mentioned in the above background.

[0005] The utility model provides the following technical scheme: a safe syringe of preventing pricking hand, including syringe, the one end outside of syringe is installed with the storage bin, the inside of storage bin is provided with protection mechanism, protection mechanism includes: protection frame, rotating lug, the elastic pivot is connected between protection frame with rotating lug, the inside of rotating lug is installed with guide sliding block, the outside of guide sliding block is located in the inside wall of storage bin and is opened in the limit sliding slot, the one side end of syringe is installed with injection needle near storage bin, the end of protection frame is located in the outside of injection needle and is installed with needle protection pad.

[0006] As the further scheme of the utility model: the one side end of syringe is installed with extrusion pad away from storage bin, the inside of syringe is provided with injection push rod, the end of injection push rod is connected with piston head.

[0007] As the further scheme of the utility model: the side surface of syringe is opened in scale mark.

[0008] As the further scheme of the utility model: protection mechanism is slidably connected through guide sliding block with limit sliding slot.

[0009] As the further scheme of the utility model: protection frame is rotatably connected through elastic pivot with rotating lug.

[0010] As a further scheme of the utility model: the extrusion pad plate is fixedly connected with the injector, and the injection needle is arranged through the injector.

[0011] As a further scheme of the utility model: the needle protection pad is fixedly connected with the protection frame, and an inner embedding groove is formed in the inner side of the needle protection pad.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] When the protection mechanism is pushed to the position of the injection needle in the limiting sliding groove in the storage bin, the two protection frames are swung towards each other under the action of the elastic shaft, the needle protection pads at the two ends of the protection frames are in contact, the inner embedding groove in the inner side of the needle protection pad covers the outer side of the end of the injection needle, and therefore the hand can be prevented from being pricked when the needle cap is sleeved.

[0014] The guide sliding blocks in the two protection mechanisms slide to the side end close to the extrusion pad plate in the limiting sliding groove, and therefore the medicine liquid can be conveniently drawn through the injection needle into the interior of the injector. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of a safe injector preventing hand pricking;

[0016] Figure 2 It is a structural schematic view of a storage bin in a safe injector preventing hand pricking;

[0017] Figure 3 It is a structural schematic view of a protection mechanism in a safe injector preventing hand pricking;

[0018] Figure 4 It is a sectional view of an injector in a safe injector preventing hand pricking;

[0019] Figure 5 It is a side view of an injector in a safe injector preventing hand pricking.

[0020] In the drawing: 1, injector; 2, injection push rod; 3, storage bin; 4, injection needle; 5, protection mechanism; 6, extrusion pad plate; 201, piston head; 301, limiting sliding groove; 501, protection frame; 502, rotating ear plate; 503, elastic shaft; 504, guide sliding block; 505, needle protection pad. DETAILED DESCRIPTION

[0021] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] As shown in the figure, Figures 1-5 The present embodiment provides a safe syringe for preventing hand puncture, which comprises a syringe 1, a receiving bin 3 is installed on one end of the syringe 1, a protection mechanism 5 is arranged in the receiving bin 3, the protection mechanism 5 comprises a protection frame 501, a rotating lug plate 502, an elastic rotating shaft 503 is connected between the protection frame 501 and the rotating lug plate 502, the protection frame 501 is rotationally connected with the rotating lug plate 502 through the elastic rotating shaft 503, a guide sliding block 504 is installed in the rotating lug plate 502, a limiting sliding groove 301 is formed in the inner side wall of the receiving bin 3 and located on the outer side of the guide sliding block 504, the protection mechanism 5 is slidingly connected with the limiting sliding groove 301 through the guide sliding block 504, a syringe needle 4 is installed on one side end of the syringe 1 close to the receiving bin 3, the syringe needle 4 is arranged through the syringe 1, a needle protection pad 505 is installed on the outer side of the syringe needle 4 at the end of the protection frame 501, the needle protection pad 505 is fixedly connected with the protection frame 501, and an embedded groove is formed in the inner side of the needle protection pad 505.

[0023] As shown in the figure, Figures 2-3 In the embodiment, an extrusion pad plate 6 is installed on one side end of the syringe 1 away from the receiving bin 3, the extrusion pad plate 6 is fixedly connected with the syringe 1, an injection push rod 2 is arranged in the syringe 1, a piston head 201 is connected at the end of the injection push rod 2, and a scale mark is formed on the side surface of the syringe 1.

[0024] The working principle of the present application is as follows: before use, the guide sliding block 504 in the two protection mechanisms 5 is slid in the limiting sliding groove 301 towards one side end close to the extrusion pad plate 6, the syringe needle 4 is sleeved on the end of the syringe 1, the injection push rod 2 is used to drive the piston head 201 to be pulled in the syringe 1, so that the liquid medicine is absorbed into the syringe 1 from the syringe needle 4, and then the protection mechanism 5 is moved in the limiting sliding groove 301 in the receiving bin 3 to the position of the syringe needle 4, and under the action of the elastic rotating shaft 503, the protection frame 501 is reset in the rotating lug plate 502 towards the inside of the receiving bin 3, so that when the protection mechanism 5 moves to the maximum stroke position, the needle protection pads 505 at the ends of the two protection frames 501 are in contact, the embedded groove in the inner side of the needle protection pad 505 covers the outer side of the end of the syringe needle 4, and thus the hand is prevented from being punctured when the needle cap is sleeved.

[0025] It should be noted that the relational terms herein, such as first and second, and the like, are used solely to distinguish one from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0026] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A safety syringe against puncture, comprising a syringe (1), characterized in that, One end of the syringe (1) is externally provided with a storage bin (3), the inside of the storage bin (3) is provided with a protection mechanism (5), the protection mechanism (5) comprises: a protection frame (501), a rotating lug plate (502), the protection frame (501) and the rotating lug plate (502) are connected with an elastic rotating shaft (503), the inside of the rotating lug plate (502) is provided with a guide sliding block (504), the outside of the guide sliding block (504) is located in the inside wall of the storage bin (3) and is provided with a limiting sliding groove (301), the syringe (1) is located on one side of the storage bin (3) and is provided with a syringe needle (4), the end of the protection frame (501) is externally provided with a needle protection pad (505) on the outside of the syringe needle (4).

2. A safety syringe according to claim 1, wherein The syringe (1) is located on one side away from the storage bin (3) and is provided with a pressing pad plate (6), the inside of the syringe (1) is provided with a syringe push rod (2), the end of the syringe push rod (2) is connected with a piston head (201).

3. A safety syringe according to claim 1, wherein The side surface of the syringe (1) is provided with a scale mark.

4. A safety syringe for preventing hand punctures according to claim 1, characterized in that, The protection mechanism (5) is slidably connected with the limiting sliding groove (301) through the guide sliding block (504).

5. The self-injection device of claim 1, wherein the needle guard is configured to move from the first position to the second position when the plunger is moved from the first position to the second position. The protection frame (501) is rotatably connected with the rotating lug plate (502) through the elastic rotating shaft (503). ​ 6. A safety syringe which prevents the hand from being pricked according to claim 2, wherein The pressing pad plate (6) is fixedly connected with the syringe (1), and the syringe needle (4) is provided through the syringe (1).

7. A safe and prick-proof syringe according to claim 1, wherein The needle protection pad (505) is fixedly connected with the protection frame (501), and an embedded groove is formed in the inside of the needle protection pad (505).

Images