Injector for preventing needling wounds

Abstract

The utility model provides an anti-needle-stabbing syringe which comprises a needle cylinder, a piston and a pintle, one end of the piston is inserted into one end of the needle cylinder to be connected in a sliding mode, the other end of the needle cylinder is provided with a connector, and medical staff need to connect the pintle with the needle cylinder through the connector before the syringe is used, the outer wall of the pintle is provided with two symmetrically arranged mounting holes, the outer wall of the connector is provided with a button, during mounting, an operator can first press down the button and insert the pintle into the connector for insertion, and when the button falls into any one of the formed mounting holes, the button bounces up, so that the pintle and the needle cylinder are detachably clamped, and the pintle and the needle cylinder are detachably connected. When an operator needs to detach the pintle after the pintle is used, the button can be pressed down with one hand, and the pintle is driven to slide and fall off, so that the effect that the operator rapidly detach the pintle with one hand is achieved, the probability of pricking injury of medical staff is reduced, and the operation safety of injection operation is improved.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a syringe for preventing needlestick injuries. Background Technology

[0002] A syringe consists of four parts: the syringe barrel, the piston, the needle, and the protective cap. In clinical practice, after using an existing syringe, nurses need to separate the needle from the syringe for the next use. However, the traditional method of connecting the needle and syringe usually uses a matching diameter and is fixed by friction. This connection is particularly tight, and when the needle needs to be removed after use, nurses often have to use both hands to pull it apart, making the separation process very difficult. At the same time, the operator is also very likely to suffer needlestick injuries during this process, posing a risk of cross-infection.

[0003] Therefore, how to provide a syringe that prevents needlestick injuries, facilitates quick disassembly of the syringe by medical personnel, reduces the probability of needlestick injuries for medical personnel, and improves the operational safety of injection procedures is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a syringe for preventing needlestick injuries, so as to solve at least one of the above-mentioned technical problems.

[0005] To solve the above-mentioned technical problems, this utility model provides a needlestick injury prevention syringe, which includes a syringe, a piston, and a plunger. One end of the piston is slidably connected to one end of the syringe, and the other end of the syringe is provided with a connector. The connector is detachably connected to one end of the plunger, and the other end of the plunger is connected to a needle. The outer wall of the plunger has two symmetrically arranged mounting holes, and the outer wall of the connector is provided with a button. The size of the two mounting holes is adapted to the size of the button.

[0006] Optionally, the button includes a cap, a fixing block, a sliding block, and a spring. The outer wall of the connector has a groove. One end of the fixing block is fixedly connected to the groove, and the other end of the fixing block is slidably connected to the sliding block. The other end of the sliding block is connected to the cap. The outer edge of the cap is located in the groove and abuts against the outer wall of the connector. The spring is sleeved around the fixing block and the sliding block. One end of the spring is connected to the cap, and the other end of the spring is connected to the groove.

[0007] Optionally, the connector includes a first segment and a second segment arranged adjacent to each other, the first segment being arranged close to the syringe, and the button being disposed on the first segment; a liquid outlet channel is provided through the center of the first segment and the second segment, and the liquid outlet channel is connected to the interior of the syringe; the diameter of the first segment is larger than the diameter of the second segment.

[0008] Optionally, the needle plug includes a fixed section and an input section arranged adjacent to each other, two mounting holes are opened on the outer wall of the fixed section, the input section is connected to the needle, and the inner diameter of the fixed section is larger than the inner diameter of the input section.

[0009] Optionally, the size of the fixed segment is adapted to the size of the first segment, and the size of the input segment is adapted to the size of the second segment, so that when the cap is inserted into any of the mounting holes, the first segment is located within the fixed segment and the second segment is located within the input segment, with the bottom surface of the first segment abutting against the top surface of the input segment.

[0010] Optionally, a sealing gasket is provided on the top surface of the input segment so that the bottom surface of the first segment abuts against the sealing gasket when the first segment is inserted into the fixed segment.

[0011] Optionally, the top of the cap is provided with a first identification color, and the openings of the two mounting holes are provided with a second identification color.

[0012] Optionally, the depth of the groove is greater than the depth of the cap, so that the cap is fully inserted into the groove when pressed into it.

[0013] Optionally, the sealing gasket is made of silicone material.

[0014] Beneficial effects:

[0015] This utility model provides a syringe for preventing needlestick injuries, comprising a syringe, a piston, and a plunger. One end of the piston is slidably inserted into one end of the syringe, and the other end of the syringe is provided with a connector. Before use, medical personnel need to connect the plunger to the syringe via the connector. Since the plunger needs to be frequently replaced during use, the connector and plunger are designed as a press-type detachable connection. The plunger has two symmetrically arranged mounting holes on its outer wall, and the connector has a button on its outer wall. During installation, the operator can first press the button, insert the plunger into the connector, and then... When inserted into any of the pre-designated mounting holes, the button pops up, allowing for a detachable connection between the plunger and the syringe. After use, if the operator needs to disassemble the plunger, they can press the button with one hand, causing the plunger to slide off. This avoids the difficulty of detachment and needlestick injuries that can occur with traditional plunger-syringe connections that rely on friction. This design creates a syringe that prevents needlestick injuries, facilitates quick operation by medical personnel, and allows for rapid disassembly of the plunger with one hand, reducing the probability of needlestick injuries and improving the safety of injection procedures.

[0016] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a syringe for preventing needlestick injuries provided in an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the structure of a syringe for preventing needlestick injuries provided in an embodiment of this application;

[0020] Figure 3 A cross-sectional view of a syringe for preventing needlestick injuries provided in an embodiment of this application;

[0021] Figure label:

[0022] 1—Syringe;

[0023] 2—Piston;

[0024] 3—Needle plug;

[0025] 31—Mounting hole;

[0026] 32—Sealing gasket;

[0027] 4—Connector;

[0028] 41 — Button;

[0029] 411—Block;

[0030] 412—Fixed block;

[0031] 413—Slider block;

[0032] 414—Spring;

[0033] 42—groove;

[0034] 5—Needle; Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Furthermore, in the embodiments of this specification, when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in the embodiments of this specification are for illustrative purposes only and are not intended to limit the present invention.

[0037] Please see Figure 1-2 This embodiment provides a needlestick injury prevention syringe, which includes a syringe 1, a piston 2, and a needle plug 3. One end of the piston 2 is slidably connected to one end of the syringe 1, and the other end of the syringe 1 is provided with a connector 4. The connector 4 is detachably connected to one end of the needle plug 3, and the other end of the needle plug 3 is connected to a needle 5. The outer wall of the needle plug 3 has two symmetrically arranged mounting holes 31, and the outer wall of the connector 4 is provided with a button 41. The size of the two mounting holes 31 is adapted to the size of the button 41.

[0038] Specifically, this utility model provides a syringe for preventing needlestick injuries, comprising a syringe barrel 1, a piston 2, and a needle plug 3. One end of the piston 2 is slidably inserted into one end of the syringe barrel 1, and the other end of the syringe barrel 1 is provided with a connector 4. Before use, medical personnel need to connect the needle plug 3 to the syringe barrel 1 through the connector 4. Since the needle plug 3 needs to be frequently replaced during use, the connector 4 and the needle plug 3 are designed as a press-type detachable connection. The outer wall of the needle plug 3 has two symmetrically arranged mounting holes 31, and the outer wall of the connector 4 is provided with a button 41. During installation, the operator can first press the button 41 and then insert the needle plug 3 into the connector 4 for connection. When button 41 is inserted into any of the pre-drilled mounting holes 31, button 41 pops up, allowing the plunger 3 and syringe 1 to be detachably engaged. When the plunger 3 is no longer in use and the operator needs to disassemble it, button 41 can be pressed down with one hand, causing the plunger 3 to slide off. This avoids the difficulty of disassembly caused by the traditional frictional connection between the plunger 3 and syringe 1, which can lead to needlestick injuries for medical personnel. This creates a syringe that can prevent needlestick injuries, facilitates quick operation by medical personnel, and allows for quick disassembly of the plunger 3 with one hand, reducing the probability of needlestick injuries and improving the safety of injection operations.

[0039] In some possible implementations, button 41 includes a cap 411, a fixing block 412, a sliding block 413, and a spring 414. The outer wall of connector 4 has a groove 42. One end of fixing block 412 is fixedly connected to groove 42, and the other end of fixing block 412 is slidably connected to sliding block 413. The other end of sliding block 413 is connected to cap 411. The outer edge of cap 411 is located in groove 42 and abuts against the outer wall of connector 4. Spring 414 is sleeved around fixing block 412 and sliding block 413. One end of spring 414 is connected to cap 411, and the other end of spring 414 is connected to groove 42.

[0040] Specifically, such as Figure 3 As shown, when in use, pressing the cap 411 compresses the spring 414, and at the same time, the cap 411 drives the sliding block 413 to slide inward to cover the fixing block 412. The cap 411 as a whole enters the groove 42, which allows the needle plug 3 to be inserted and removed. Thus, when the needle plug 3 is finished and needs to be removed, the operator can simultaneously remove the needle plug 3 downward while pressing the cap 411, realizing the function of quickly removing the needle plug 3 with one hand. When the cap 411 is not under external pressure, the spring 414 springs open, and the cap 411 is inserted into the mounting hole 31, locking the needle plug 3 in place and fixing it, thus fixing the needle plug 3 and the syringe 1.

[0041] In some possible implementations, the connector 4 includes a first section and a second section arranged vertically adjacent to each other. The first section is arranged close to the syringe 1, and the button 41 is located on the first section. A liquid outlet channel is opened through the center of the first section and the second section, and the liquid outlet channel is connected to the interior of the syringe 1. The diameter of the first section is larger than the diameter of the second section. The needle plug 3 includes a fixed section and an input section arranged vertically adjacent to each other. Two mounting holes 31 are opened on the outer wall of the fixed section. The input section is connected to the needle 5. The inner diameter of the fixed section is larger than the inner diameter of the input section.

[0042] Specifically, such as Figure 3 As shown, the interior of the needle plug 3 and the connector 4 are both set as two segments. Through the setting of the second segment in the connector 4 and the input segment in the needle plug 3, it is ensured that when the injection liquid flows out, it directly reaches the input segment of the needle plug 3 and flows out through the needle, avoiding the injection liquid from flowing back or contacting the mounting hole 31, which would cause liquid leakage or contamination.

[0043] In some possible implementations, the size of the fixed segment is adapted to the size of the first segment, and the size of the input segment is adapted to the size of the second segment, such that when the cap 411 is inserted into any mounting hole 31, the first segment is located in the fixed segment and the second segment is located in the input segment, with the bottom surface of the first segment abutting against the top surface of the input segment.

[0044] Specifically, such as Figure 3 As shown, when the cap 411 is inserted into any of the mounting holes 31, the first segment is located in the fixed segment and the second segment is located in the input segment. The bottom surface of the first segment abuts against the top surface of the input segment to prevent the injection liquid from flowing back.

[0045] In some possible implementations, a sealing gasket 32 ​​is provided on the top surface of the input segment so that the bottom surface of the first segment abuts against the sealing gasket 32 ​​when the first segment is inserted into the fixed segment.

[0046] Specifically, such as Figure 3 As shown, a sealing gasket 32 ​​is provided at the junction of the bottom surface of the first section and the top surface of the input section. The sealing gasket 32 ​​makes the connection between the needle plug 3 and the connector 4 tighter, and the injection liquid is blocked by the sealing gasket 32 ​​to avoid infection.

[0047] In some possible implementations, the top of the cap 411 is provided with a first identification color, and the openings of the two mounting holes 31 are provided with a second identification color.

[0048] Specifically, by setting a first and a second identification color, the location of the case can be quickly and conspicuously indicated to the operator during installation and removal, thereby improving operational efficiency.

[0049] In some possible implementations, the depth of the groove 42 is greater than the depth of the cap 411, so that the cap 411 is fully inserted into the groove 42 when pressed into it; the sealing gasket 32 ​​is made of silicone material.

[0050] Specifically, the sealing gasket 32 ​​is made of silicone material, which has good biocompatibility, is soft, and has high safety, making it suitable for medical use.

[0051] Finally, it should be noted that the above embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. All should be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

[0052] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A needle stick injury preventing syringe, characterized in that, The prevention needle stick injury syringe includes a needle cylinder (1), a piston (2) and a needle plug (3), one end of the piston (2) is inserted into one end of the needle cylinder (1) and is connected in sliding mode, the other end of the needle cylinder (1) is provided with a connecting head (4), the connecting head (4) is inserted into one end of the needle plug (3) and is connected in detachable mode, and the other end of the needle plug (3) is connected with a needle head (5); wherein the outer wall of the needle plug (3) is provided with two symmetrically arranged mounting holes (31), the outer wall of the connecting head (4) is provided with a button (41), and the sizes of the two mounting holes (31) are matched with the size of the button (41).

2. The needle stick injury prevention syringe of claim 1, wherein, The button (41) includes a cap (411), a fixed block (412), a sliding block (413) and a spring (414), the outer wall of the connecting head (4) is provided with a groove (42), one end of the fixed block (412) is fixedly connected with the groove (42), the other end of the fixed block (412) is inserted into the sliding block (413) and is connected in sliding mode, the other end of the sliding block (413) is connected with the cap (411), and the outer edge of the cap (411) is located in the groove (42) and abuts against the outer wall of the connecting head (4); the spring (414) is sleeved on the periphery of the fixed block (412) and the sliding block (413), one end of the spring (414) is connected with the cap (411), and the other end of the spring (414) is connected with the groove (42).

3. The needle stick injury prevention syringe of claim 2, wherein, The connecting head (4) includes a first section and a second section arranged adjacently, the first section is arranged close to the needle cylinder (1), and the button (41) is arranged on the first section; a liquid outlet channel is arranged through the centers of the first section and the second section, the liquid outlet channel is communicated with the inside of the needle cylinder (1), and the diameter of the first section is larger than that of the second section.

4. The needle stick injury preventative syringe of claim 3, wherein, The needle plug (3) includes a fixed section and an input section arranged adjacently, the two mounting holes (31) are arranged on the outer wall of the fixed section, the input section is connected with the needle head (5), and the inner diameter of the fixed section is larger than that of the input section.

5. The safety needle of claim 4, wherein the needle guard is formed of a material that is transparent to x-rays. The size of the fixed section is matched with that of the first section, the size of the input section is matched with that of the second section, so that when the cap (411) is clamped into any mounting hole (31), the first section is located in the fixed section and the second section is located in the input section, and the bottom surface of the first section abuts against the top surface of the input section.

6. The safety needle of claim 5, wherein the needle guard is formed of a material that is transparent to x-rays. The top surface of the input section is provided with a sealing gasket (32), so that when the first section is inserted into the fixed section, the bottom surface of the first section abuts against the sealing gasket (32).

7. The safety needle of claim 6, wherein the needle guard is configured to move from the first position to the second position when the needle guard is moved from the first position to the second position. The top of the cap (411) is provided with a first identification color, and the openings of the two mounting holes (31) are provided with a second identification color.

8. The safety needle of claim 7, wherein the needle guard is formed of a material that is transparent to x-rays. The depth of the groove (42) is larger than that of the cap (411), so that when the cap (411) is pressed into the groove (42), the cap (411) is completely entered into the groove (42).

9. The safety needle of claim 8, wherein, The sealing gasket (32) is made of silica gel.

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