Gourd-shaped inner hole injection needle seat matched with disposable syringe

Abstract

The calabash-shaped inner hole injection needle seat comprises a top cover protection assembly, a needle head body and a needle seat assembly, the needle seat assembly is arranged at the bottom of the needle head body, and the top cover protection assembly is arranged at the top of the needle head body. The top cover protection assembly comprises a top cover body, a limiting groove and a positioning sealing ring. The needle seat assembly comprises a needle seat body, an anti-sliding block, a positioning seat, a leakage-proof sealing ring, a gourd-shaped groove and a threaded groove. The calabash-shaped inner hole injection needle base matched with the disposable syringe has the advantages of being high in bonding strength and easy to operate, and solves the problems that in the actual production process, ozone activation is not in place, or part of samples are not activated in place, so that the bonding strength of a steel needle and the needle base cannot meet the requirement; and under the conditions of long ozone activation time and more types of needle seats, the operation is limited, the whole ozone activation process is complicated, and the energy consumption is high.

Description

Technical Field

[0001] This utility model relates to the field of syringe technology, specifically to a gourd-shaped inner hole injection needle holder for use with a disposable syringe. Background Art

[0002] The invention of the syringe was a revolutionary breakthrough in the field of medical devices. The process of drawing or injecting gas or liquid with a needle is called injection. A syringe consists of a syringe barrel with a small hole at the front end and a matching piston rod. It is used to inject or extract small amounts of liquid into areas that are inaccessible by other methods. When the piston rod is pulled out, the liquid or gas is drawn in through the small hole at the front end of the syringe barrel, and when the piston rod is pushed in, the liquid or gas is expelled.

[0003] The needle hub in the injection needle assembly for disposable syringes has a straight-hole needle hub that mates with the steel needle. During production, the needle hub needs to be activated with ozone. This activation is achieved by using an ozone generator to produce ozone, creating an irregular surface to improve adhesion and increase the bonding strength between the steel needle and the needle hub. However, in actual production, ozone activation is often incomplete, or some samples are not fully activated, resulting in insufficient bonding strength between the steel needle and the needle hub. Furthermore, ozone activation takes a long time, and with a wide variety of needle hub models, operation is limited. The entire ozone activation process is complex and energy-intensive. Therefore, there is an urgent need for a gourd-shaped inner-hole injection needle hub for disposable syringes to overcome these shortcomings. Utility Model Content

[0004] The purpose of this invention is to provide a gourd-shaped inner hole injection needle holder for use with a disposable syringe, which has the advantages of high bonding strength and simple operation, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a gourd-shaped inner hole injection needle holder for use with a disposable syringe, comprising a top cover protection assembly, a needle body, and a needle holder assembly. The needle holder assembly is disposed at the bottom of the needle body, and the top cover protection assembly is disposed at the top of the needle body. The top cover protection assembly includes a top cover body, a limiting groove, and a positioning sealing ring. The needle holder assembly includes a needle holder body, an anti-sliding block, a positioning seat, a leak-proof sealing ring, a gourd-shaped groove, and a threaded groove. The anti-sliding block is fixedly installed on the surface of the needle holder body, and the gourd-shaped groove is formed at the top of the inner cavity of the needle holder body.

[0006] Furthermore, the total number of anti-slip blocks is three, and the limiting groove is formed inside the top cover body.

[0007] Furthermore, the total number of the limiting grooves is three, and the positioning sealing ring is fixedly installed at the bottom of the top cover body.

[0008] Furthermore, the positioning seat is fixedly installed at the bottom of the needle holder body, and the leak-proof sealing ring is fixedly installed in the inner cavity of the needle holder body.

[0009] Furthermore, the total number of the leak-proof sealing rings is two, and the inner diameter of the top leak-proof sealing ring is smaller than the inner diameter of the bottom leak-proof sealing ring.

[0010] Furthermore, the length of the top cover body is greater than the length of the needle body, and the threaded groove is formed inside the positioning seat.

[0011] In summary, due to the adoption of the above-mentioned technologies, the beneficial effects of this utility model are:

[0012] This invention primarily protects the needle body by incorporating a top cover protection component. The needle body is used to extract injection solutions or medications, and a needle seat assembly secures the needle body. A gourd-shaped groove enhances the adhesion between the needle body and the needle seat, using this physical characteristic to replace the chemical treatment of the needle seat by ozone activation. Furthermore, its unique and highly efficient gourd-shaped internal structure, combined with an adhesive forming a barbed snap-like device after needle body assembly, makes the needle body more secure and less prone to detachment, eliminating the need for the ozone process. It boasts high adhesion strength and simple operation, solving the problems often encountered in actual production processes, such as inadequate ozone activation or partial incomplete activation of samples, resulting in insufficient adhesion strength between the steel needle and needle seat; long ozone activation times; operational limitations when dealing with various needle seat models; and complex and energy-intensive ozone activation procedures. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the top cover protection component of this utility model;

[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the needle seat assembly of this utility model;

[0016] Figure 4 This utility model Figure 3 Enlarged view of a portion of point A in the middle.

[0017] In the diagram: 1. Top cover protection assembly; 11. Top cover body; 12. Limiting groove; 13. Positioning sealing ring; 2. Needle body; 3. Needle seat assembly; 31. Needle seat body; 32. Anti-slip block; 33. Positioning seat; 34. Leakage-proof sealing ring; 35. Gourd-shaped groove; 36. Threaded groove. DETAILED DESCRIPTION

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] This utility model provides, for example Figure 1-4 As shown, a gourd-shaped inner hole injection needle holder for use with a disposable syringe includes a top cover protection assembly 1, a needle body 2, and a needle holder assembly 3. The needle holder assembly 3 is disposed at the bottom of the needle body 2, and the top cover protection assembly 1 is disposed at the top of the needle body 2. The top cover protection assembly 1 includes a top cover body 11, a limiting groove 12, and a positioning sealing ring 13. The needle holder assembly 3 includes a needle holder body 31, an anti-sliding block 32, a positioning seat 33, an anti-leakage sealing ring 34, a gourd-shaped groove 35, and a threaded groove 36. The anti-sliding block 32 is fixedly installed on the surface of the needle holder body 31, and the gourd-shaped groove 35 is formed at the top of the inner cavity of the needle holder body 31.

[0020] More specifically, the top cover protection component 1 mainly protects the needle body 2. The needle body 2 is used to draw injection liquid or medicine. The needle seat component 3 fixes the needle body 2. The gourd-shaped groove 35 enhances the bonding strength between the needle body 2 and the needle seat body 31. This physical characteristic replaces the chemical treatment of the needle seat by ozone activation. At the same time, its unique and extremely reasonable internal hole is gourd-shaped. After assembling the needle body 2, the adhesive forms a barbed buckle-like device, making the needle body 2 more secure and less likely to fall off. It also saves the ozone process step. It has the advantages of high bonding strength and simple operation.

[0021] In some embodiments, the total number of anti-slip blocks 32 is three, and the limiting groove 12 is formed inside the top cover body 11. More specifically, the anti-slip blocks 32 facilitate the removal of the needle holder body 31 and also facilitate the fixing of the needle holder body 31.

[0022] In some embodiments, the total number of limiting grooves 12 is three, and the positioning sealing ring 13 is fixedly installed at the bottom of the top cover body 11. More specifically, the limiting grooves 12 are mainly used to limit the anti-sliding block 32, and the positioning sealing ring 13 is mainly used to fix the connection between the top cover body 11 and the needle seat body 31.

[0023] In some embodiments, the positioning seat 33 is fixedly installed at the bottom of the needle holder body 31, and the anti-leakage sealing ring 34 is fixedly installed in the inner cavity of the needle holder body 31. More specifically, by setting the threaded groove 36 to fix it mainly to one side of the needle tube, the needle holder body 31 will not fall off under frequent use.

[0024] In some embodiments, the total number of the anti-leakage sealing rings 34 is two, and the inner diameter of the top anti-leakage sealing ring 34 is smaller than the inner diameter of the bottom anti-leakage sealing ring 34. More specifically, the anti-leakage sealing rings 34 are mainly used to seal the connection between the needle tube and the needle seat body 31 to prevent liquid leakage.

[0025] In some embodiments, the length of the top cover body 11 is greater than the length of the needle body 2, and the threaded groove 36 is formed inside the positioning seat 33. More specifically, the top cover body 11 is provided to protect the needle body 2 and to protect medical personnel.

[0026] Working principle:

[0027] Step 1: The top cover protection component 1 is mainly used to protect the needle body 2. The needle body 2 is used to draw the injection liquid or medicine. The needle seat component 3 is used to fix the needle body 2. The gourd-shaped groove 35 is used to enhance the bonding strength between the needle body 2 and the needle seat body 31. This physical characteristic replaces the chemical treatment of the needle seat by ozone activation. At the same time, the unique and extremely reasonable internal hole is gourd-shaped. After assembling the needle body 2, the adhesive forms a barbed buckle-like device, which makes the needle body 2 more secure and less likely to fall off, and saves the ozone process. The anti-sliding block 32 is used to facilitate the removal of the needle seat body 31 and to facilitate the fixation of the needle seat body 31.

[0028] Step Two: The limiting groove 12 is used to limit the anti-sliding block 32. The positioning sealing ring 13 is used to fix the connection between the top cover body 11 and the needle holder body 31. The threaded groove 36 is used to fix one side of the needle tube. This prevents the needle holder body 31 from falling off under frequent use. The anti-leakage sealing ring 34 is used to seal the connection between the needle tube and the needle holder body 31 to prevent liquid leakage. It has the advantages of high bonding strength and simple operation. It solves the problems that often occur in actual production process, such as incomplete ozone activation or some samples not being activated properly, resulting in insufficient bonding strength between the steel needle and the needle holder. In addition, the ozone activation time is long, and the operation is limited when there are many types of needle holders. The whole ozone activation process is complicated and consumes a lot of energy.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0030] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A gourd-shaped inner hole injection needle holder for use with a disposable syringe, characterized in that: The device includes a top cover protection assembly (1), a needle body (2), and a needle seat assembly (3). The needle seat assembly (3) is located at the bottom of the needle body (2), and the top cover protection assembly (1) is located at the top of the needle body (2). The top cover protection assembly (1) includes a top cover body (11), a limiting groove (12), and a positioning sealing ring (13). The needle seat assembly (3) includes a needle seat body (31), an anti-sliding block (32), a positioning seat (33), an anti-leakage sealing ring (34), a gourd-shaped groove (35), and a threaded groove (36). The anti-sliding block (32) is fixedly installed on the surface of the needle seat body (31), and the gourd-shaped groove (35) is opened at the top of the inner cavity of the needle seat body (31).

2. The gourd-shaped inner hole injection needle holder for use with a disposable syringe according to claim 1, characterized in that: The total number of the anti-slip blocks (32) is three, and the limiting groove (12) is opened inside the top cover body (11).

3. The gourd-shaped inner hole injection needle holder for use with a disposable syringe according to claim 1, characterized in that: The total number of the limiting grooves (12) is three, and the positioning sealing ring (13) is fixedly installed at the bottom of the top cover body (11).

4. The gourd-shaped inner hole injection needle holder for use with a disposable syringe according to claim 1, characterized in that: The positioning seat (33) is fixedly installed at the bottom of the needle seat body (31), and the anti-leakage sealing ring (34) is fixedly installed in the inner cavity of the needle seat body (31).

5. The gourd-shaped inner hole injection needle holder for use with a disposable syringe according to claim 1, characterized in that: The total number of the leak-proof sealing rings (34) is two, and the inner diameter of the top leak-proof sealing ring (34) is smaller than the inner diameter of the bottom leak-proof sealing ring (34).

6. The gourd-shaped inner hole injection needle holder for use with a disposable syringe according to claim 1, characterized in that: The length of the top cover body (11) is greater than the length of the needle body (2), and the threaded groove (36) is formed inside the positioning seat (33).

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