CN218165749U - A syringe with a needle protection structure - Google Patents

Abstract

The utility model discloses an injector with syringe needle protective structure, including injection mechanism, injection mechanism includes syringe needle protective sleeve, and syringe needle protective sleeve's inside embeds there is the syringe needle, and wherein the syringe needle is for being used for stabbing the steel needle of patient's body surface, steel needle cavity, and the end has seted up bevel piercing hole, and the bottom of steel needle is provided with the adapter sleeve, and the top of adapter sleeve still moves about the block and is equipped with the back taper block, and the middle part of back taper block is equipped with the trompil, and the bottom middle part of back taper block pastes tightly with the top of adapter sleeve and is connected, the beneficial effects of the utility model are that: adopt the protective sheath structure of formula of popping out, can shield the syringe needle, play the effect of shielding to the syringe needle when extracting after hypodermic like this, avoid the condition emergence that the person of injection accidentally injures and bump, ensure safe handling, also avoided the accidental injury completely simultaneously in the recovery process, stop the secondary infection to medical personnel.

Description

A syringe with needle protection structure

technical field

The utility model relates to the field of medical technology, in particular to a syringe with a needle protection structure.

Background technique

There are 350 million hepatitis B virus infected people in the world, and about 93 million people in my country carry hepatitis B virus, of which about 20 million are chronic hepatitis B patients. If not properly treated, 20%-30% of chronic hepatitis B will progress to liver cirrhosis and/or liver cancer. At present, the main drugs for antiviral treatment of chronic hepatitis B include nucleoside (acid) and interferon drugs. Among them, interferon drugs need to be injected subcutaneously. Long-acting interferon is usually injected once a week, and ordinary interferon is usually injected every other day.

At present, the "Mount Everest" project and "Oasis" project initiated by the China Hepatitis Foundation and other hepatitis B clinical cure research projects are clinical treatment programs based on long-acting interferon. cure. Because of the need for long-term treatment, subcutaneous interferon injections are usually done with the help of the patient’s family members or in a nearby clinic. Needle-stick injuries are likely to occur during the injection process. Disposable disposable syringes are also likely to cause secondary needle-stick injuries. The transmission route of hepatitis B is through Body fluid (mainly blood) way of transmission, prone to cross-infection, there is a big hidden danger.

Utility model content

The purpose of this utility model is to provide a syringe with a needle protection structure to solve multiple problems raised by the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a syringe with a needle protection structure, including an injection mechanism, the injection mechanism includes a needle protection sleeve, and an injection needle is built inside the needle protection sleeve, wherein The injection needle is a steel needle used to puncture the patient's body surface, the steel needle is hollow, and the end of the steel needle is provided with an oblique puncture hole, and the bottom end of the steel needle is provided with a pipe sleeve;

The top of the pipe socket is also movably engaged with an inverted tapered cap, the middle of the inverted tapered cap is provided with an opening, and the middle of the bottom of the inverted tapered cap is closely connected to the top of the pipe socket ;

The needle protection sleeve, wherein both sides of the middle part of the inverted tapered cap are symmetrically provided with holding gaskets for handling;

The outer wall of the end of the injection needle is also slidingly limited with a protective head, the protective head is made of rubber material, wherein a sliding channel is opened in the middle of the top of the protective head, and alcohol disinfection cotton is arranged inside the sliding channel core;

The middle part of the protective head is slidably connected with the outer wall of the injection needle.

As a preferred solution of the present utility model: several connection gaskets are respectively provided on the periphery of the pipe socket, wherein an inverted tapered opening is provided at the top of the pipe socket, and a bottom of the pipe socket is provided with Needle push mechanism.

As a preferred solution of the utility model: the needle tube pushing mechanism includes an arc-shaped sleeve connected to the bottom of the pipe socket, the bottom threaded tube of the arc-shaped sleeve is connected with a needle tube, and the inside of the needle tube is hollow.

As a preferred solution of the utility model: the protective head is elastically engaged and connected with the oblique angle piercing opening of the steel needle, the bottom of the protective head is engaged with the middle part of the top end of the pipe socket, and the protective head The outer wall is provided with several card slots.

As a preferred solution of the present invention: the bottom of the needle tube is provided with a needle tube grip pad, wherein a push piston rod is interspersed in the middle of the needle tube grip pad.

Compared with the prior art, the beneficial effects of the utility model are:

1) It adopts a pop-up protective cover structure, which can cover the needle, so that it can cover the needle when it is pulled out after subcutaneous injection, so as to avoid accidental injury by the injector and ensure safe use. In the process, accidental injury is completely avoided, and the secondary infection of medical staff is eliminated;

2) When the needle is pulled out after the subcutaneous injection of interferon, a plug-in rebound protection structure is adopted, and the protective head is displaced along the needle end during the plug-in process to achieve the purpose of covering the needle and avoiding oblique puncture holes Stab people, prevent cross-infection, and ensure safe use.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the schematic diagram of the structure of the needle tube of the present invention;

Fig. 3 is the structural schematic diagram of pushing piston rod of the present utility model;

Fig. 4 is a structural schematic diagram of the injection mechanism of the present invention.

In the figure: 1. Injection mechanism; 11. Needle protective sleeve; 12. Injection needle; 13. Steel needle; 18. Protective head; 181. Sliding channel; 182. Card slot; 2. Needle tube pushing mechanism; 21. Arc sleeve; 22. Needle tube;

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-4, the utility model provides a technical solution: a syringe with a needle protection structure, including an injection mechanism 1, the injection mechanism 1 includes a needle protection sleeve 11, and the inside of the needle protection sleeve 11 is equipped with an injection A needle 12, wherein the injection needle 12 is a steel needle 13 for puncturing the patient's body surface, the steel needle 13 is hollow, and an oblique angle puncture opening is opened at the end, and the bottom end of the steel needle 13 is provided with a nipple 14;

The top of the pipe socket 14 is also movably engaged with an inverted conical cap 16, and the middle part of the inverted tapered cap 16 is provided with an opening, and the middle part of the bottom of the inverted tapered cap 16 is closely connected to the top of the pipe socket 14;

The needle protection sleeve 11, wherein both sides of the middle part of the inverted tapered cap 16 are symmetrically provided with holding gaskets 17 for handling;

The outer wall of the end of the injection needle 12 is also slidingly limited with a protective head 18. The protective head 18 is made of rubber material, and the middle part of the top of the protective head 18 is provided with a sliding channel 181. The interior of the sliding channel 181 is provided with alcohol disinfection cotton. core;

The middle part of the protective head 18 is slidably connected with the outer wall of the injection needle 12 .

In this embodiment: several connection gaskets 15 are respectively provided on the periphery of the pipe socket 14, wherein an inverted tapered opening is provided at the top of the pipe socket 14, and a needle tube pushing mechanism is provided at the bottom of the pipe socket 14 2.

The provided connecting gasket 15 is convenient for manually holding and pulling out the needle.

In this embodiment: the needle tube pushing mechanism 2 includes an arc-shaped sleeve 21 connected to the bottom of the pipe socket 14, the bottom of the arc-shaped sleeve 21 is threaded with a needle tube 22, and the inside of the needle tube 22 is hollow.

Through the provided needle tube 22 and the arc-shaped sleeve 21, it is convenient to store the corresponding injected medical solution inside.

In this embodiment: the protective head 18 is elastically engaged and connected with the oblique angle piercing opening of the steel needle 13, the bottom of the protective head 18 is engaged with the middle part of the top end of the pipe socket 14, and the outer wall of the protective head 18 is provided with Several card slots 182 .

The provided protective head 18 and the card slot 182 are convenient for manual manual adjustment.

In this embodiment: the bottom of the needle tube 22 is provided with a needle tube holding pad 23 , wherein a push piston rod 24 is interspersed in the middle of the needle tube holding pad 23 .

The staff manually pushes the piston rod 24 to push the medicinal liquid.

During specific use, the user first needs to remove the needle protective sleeve 11, and hold the needle at the end of the push piston rod 24 after the needle leaks out, with the injection needle 12 facing the interferon to be absorbed. Gasket 23 position, and then apply force to push the piston rod 24 to move backward. At this time, the steel needle 13 generates an attractive force to suck the medicinal liquid into the needle tube 22. After the proportioned medicinal liquid is absorbed, push the appropriate air to align The patient's buttocks are smeared with alcohol sterilized cotton and pierced. After the piercing, the piston rod 24 is slowly pushed to displace until all the liquid medicine is injected. It is made of non-toxic silicone material, which will become soft when pressed, and the needle will directly extend from the bottom of the sliding channel 181. The alcohol in the protective head 18 can be used to sterilize when the needle is pulled out (the protective head 18 is dislocated from the pipe socket 14), and finally through the protective The card and structure in the head 18 can be locked and fixed with the position of the oblique puncture hole. Finally, the personnel can directly recover the needle and cover the needle through the telescopic displacement of the protective head 18 to avoid needle stick injury, prevent cross-infection, and ensure safe use. .

The content that is not described in detail in this description belongs to the prior art known to those skilled in the art. Although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still understand the foregoing Modifications to the technical solutions recorded in the embodiments, or equivalent replacements for some of the technical features, within the spirit and principles of the utility model, any modifications, equivalent replacements, improvements, etc., shall be included in the utility model. within the scope of protection.

Claims (5)

1. A syringe with a needle protection structure, comprising an injection mechanism (1), characterized in that the injection mechanism (1) comprises a needle protection sleeve (11), and the inside of the needle protection sleeve (11) is built-in There is an injection needle (12), wherein the injection needle (12) is a steel needle (13) used to puncture the patient's body surface, the steel needle (13) is hollow, and an oblique angle puncture opening is opened at the end, The bottom end of the steel needle (13) is provided with a pipe socket (14); The top of the pipe socket (14) is also movably engaged with an inverted tapered cap (16), the middle part of the inverted tapered cap (16) is provided with an opening, and the inverted tapered cap (16) The middle part of the bottom is closely connected with the top of the pipe socket (14); The needle protection sleeve (11), wherein both sides of the middle part of the inverted tapered cap (16) are symmetrically provided with holding gaskets (17) for handling; The outer wall of the end of the injection needle (12) is also slide-limited with a protective head (18). The protective head (18) is made of rubber material, and the middle part of the top of the protective head (18) is provided with a sliding channel. (181), the inside of the sliding channel (181) is provided with an alcohol disinfection cotton core; The middle part of the protective head (18) is slidably connected with the outer wall of the injection needle (12). 2. A syringe with a needle protection structure according to claim 1, characterized in that: several connection gaskets (15) are respectively provided on the periphery of the said nipple (14), wherein The top of the sleeve (14) is provided with an inverted taper opening, and the bottom of the sleeve (14) is provided with a needle tube pushing mechanism (2). 3. A syringe with a needle protection structure according to claim 2, characterized in that: the needle tube pushing mechanism (2) comprises an arc-shaped sleeve (21) connected to the bottom of the nipple (14), the The bottom threaded tube of the arc-shaped sleeve (21) is connected with a needle tube (22), and the inside of the needle tube (22) is hollow. 4. A syringe with a needle protection structure according to claim 1, characterized in that: the protection head (18) is elastically engaged with the steel needle (13) at the position of the oblique puncture opening, and the protection head (18) The bottom of the head (18) is engaged and socketed with the middle part of the top of the pipe socket (14), and the outer wall of the protective head (18) is provided with several locking grooves (182). 5. A syringe with a needle protection structure according to claim 3, characterized in that: the bottom of the needle tube (22) is provided with a needle tube holding pad (23), wherein the needle tube holding pad (23) ) middle part is interspersed with pushing piston rod (24).

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