Anti-stabbing injection needle

Abstract

The utility model relates to the technical field of injectors, in particular to an anti-stabbing injection needle which comprises a needle tube and a needle head. The needle head comprises a connector, an injection needle and a protective sleeve, and the injection needle is connected to the needle tube through the connector; the protective sleeve is made of an elastic material and is connected to a connector on the side edge of the injection needle; one end, connected to the connector, of the protective sleeve is a connecting end, and the other end is a free end; a left clamping plate and a right clamping plate which are arranged in a mirror image mode are arranged on the open groove close to the free end, and the left clamping plate and the right clamping plate are both made of elastic materials; a gap is formed between the left clamping plate and the right clamping plate; according to the disposable syringe, the elastic protective sleeve is matched with the semicircular open groove formed in the side face facing the injection needle, and the interval is combined, so that when the disposable syringe is used, a medical worker pulls the protective sleeve outwards to obtain elastic potential energy, and after injection is completed, the protective sleeve is loosened to achieve preliminary resetting under the action of the elastic potential energy, and the reminding effect is achieved; and the whole structure can be formed at a time, assembly is not needed, and the cost is lower.

Description

Technical Field

[0001] The utility model relates to the technical field of syringes, in particular to an anti-puncture injection needle. Background Art

[0002] Syringes are very common medical devices, consisting of a needle, syringe, piston, piston rod, and needle cap. The needle cap fits over the needle to prevent needle contamination and puncture wounds. The needle cap should be removed before use. A syringe without the cap after use can easily cause puncture wounds, which can not only cause pain but also potentially lead to infection.

[0003] Some existing syringes are also equipped with needle protection covers. For example, the Chinese patent with authorization announcement number CN217286752U discloses a stab-proof syringe, which includes a syringe and a needle, with the needle connected to the front end of the syringe; it also includes a protection cover, a hinged seat and a positioning hook. Although this product can solve the needle stick problem, the production cost is high. In addition, during use, the protection cover needs to be reset. Once the medical staff forgets, the exposure risk still exists. Therefore, there is a need for a stab-proof injection needle that can reduce production costs and realize reminder reset. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide an anti-puncture injection needle that can reduce production costs and realize reminder reset.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] An anti-puncture injection needle comprises a needle tube and a needle;

[0007] The needle includes a connector, an injection needle and a protective sleeve, and the injection needle is connected to the needle tube through the connector;

[0008] The protective sleeve is made of elastic material and is connected to the connector on the side of the injection needle. The protective sleeve is arc-shaped and has a semicircular groove formed on one side of the protective sleeve facing the injection needle, and the groove is arranged corresponding to the injection needle.

[0009] One end of the protective sleeve connected to the connector is the connecting end, and the other end is the free end. The free end is provided with a protective head with a diameter larger than the diameter of the injection needle; the slot near the free end is provided with a mirror-image left clamping plate and a right clamping plate, both of which are made of elastic material; there is a gap between the left clamping plate and the right clamping plate, and the distance of the gap is half to two-thirds of the outer diameter of the injection needle.

[0010] Preferably, the injection needle has a tip, and the protective cover is provided on one side of the tip of the injection needle.

[0011] Preferably, the edges of the left and right clamping plates away from the groove are rounded.

[0012] Preferably, the rounded corners of the left and right card boards are respectively provided with a smooth coating.

[0013] Preferably, friction coatings for increasing friction force are respectively provided on the sides of the left clamping plate and the right clamping plate facing the slot.

[0014] Preferably, the protective cover, protective head, left card plate and right card plate are all made of transparent materials.

[0015] Preferably, the protective cover, the protective head, the left clamping plate and the right clamping plate are of an integrated design.

[0016] Preferably, a liquid suction groove is provided on the side of the protective head facing the injection head, and a liquid suction block is provided in the liquid suction groove.

[0017] Preferably, the liquid suction groove and the card groove are communicated.

[0018] Preferably, the liquid-absorbing block is made of cotton.

[0019] The beneficial effects of the present invention are as follows: through the elastic protective sleeve, a semicircular groove is formed on the side facing the injection needle, and the interval between the left clamping plate and the right clamping plate is half to two-thirds of the outer diameter of the injection needle. When in use, the medical staff can directly pull the protective head outward by hand to realize the outward bending of the entire protective sleeve, so that the protective sleeve obtains elastic potential energy, and at the same time perform injection or other work. After the injection is completed, the protective sleeve is loosened to realize the initial reset of the protective sleeve under the action of the elastic potential energy. At this time, the medical staff can directly see the reset protective sleeve, and the medical staff can directly insert the injection needle into the interval to complete the reset, which can serve as a reminder. If the angle is appropriate, the injection needle can be directly inserted into the interval by the elastic potential energy without the medical staff having to do it manually; and the overall structure can be formed in one go, without the need for assembly, and the cost is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The figure shows a schematic structural diagram of a stab-proof injection needle according to a specific embodiment of the present utility model;

[0021] Figure 2 The figure shows a schematic diagram of the cooperation between an injection needle and a protective cover of a stab-proof injection needle according to a specific embodiment of the present utility model;

[0022] Figure 3 The figure shows a schematic diagram of the separation of the injection needle and the protective cover of a stab-proof injection needle according to a specific embodiment of the utility model;

[0023] Explanation of the reference numbers: 1. needle tube; 2. needle; 21. connector; 22. injection needle; 23. protective cover; 231. slot; 232. protective head; 233. left clamping plate; 234. right clamping plate; 235. rounded corners; 236. suction trough. DETAILED DESCRIPTION

[0024] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

[0025] Please refer to Figures 1 to 3 As shown, an anti-puncture injection needle 22 of the present invention includes a needle tube 1 and a needle 2;

[0026] The needle 2 includes a connector 21, an injection needle 22 and a protective cover 23. The injection needle 22 is connected to the needle tube 1 through the connector 21.

[0027] The protective sleeve 23 is made of elastic material and is connected to the connector 21 on the side of the injection needle 22. The protective sleeve 23 is arc-shaped and has a semicircular groove 231 formed on one side of the protective sleeve 23 facing the injection needle 22. The groove 231 is arranged corresponding to the injection needle 22.

[0028] One end of the protective sleeve 23 connected to the connector 21 is the connecting end, and the other end is the free end. The free end is provided with a protective head 232 whose diameter is larger than the diameter of the injection needle 22; the slot 231 near the free end is provided with a left clamping plate 233 and a right clamping plate 234 arranged in a mirrored manner, and the left clamping plate 233 and the right clamping plate 234 are both made of elastic material; there is a gap between the left clamping plate 233 and the right clamping plate 234, and the distance of the gap is half to two-thirds of the outer diameter of the injection needle 22.

[0029] As can be seen from the above description, the elastic protective sleeve 23 is combined with a semicircular groove 231 formed on the side facing the injection needle 22, and the gap between the left clamping plate 233 and the right clamping plate 234 is half to two-thirds of the outer diameter of the injection needle 22. When in use, the medical staff can directly pull the protective head 232 outward by hand to achieve the outward bending of the entire protective sleeve 23, so that the protective sleeve 23 obtains elastic potential energy while performing injection or other work. After the injection is completed, the protective sleeve 23 is loosened to achieve the initial reset of the protective sleeve 23 under the action of elastic potential energy. At this time, the medical staff can directly see the reset protective sleeve 23, and the medical staff can directly insert the injection needle 22 into the gap to complete the reset, which can serve as a reminder. If the angle is appropriate, the injection needle 22 can be directly inserted into the gap by elastic potential energy without the need for the medical staff to do anything; and the overall structure can be formed in one go, without the need for assembly, and the cost is lower.

[0030] Furthermore, the injection needle 22 has a tip, and the protective cover 23 is disposed on one side of the tip of the injection needle 22 .

[0031] As can be seen from the above description, by setting the protective cover 23 on the tip side of the injection needle 22, the protective cover 23 can be bent downward along the tip part during use. The tip is also the first part inserted into the human body during injection. Therefore, after the needle 2 is pulled out, the protective cover 23 is reset. It is also the easiest way to achieve the injection needle 22 being stuck in the gap by utilizing elastic potential energy.

[0032] Furthermore, the edges of the left clamping plate 233 and the right clamping plate 234 away from the groove 231 are respectively rounded 235.

[0033] As can be seen from the above description, the rounded edge 235 can make it easier for the injection needle 22 to enter.

[0034] Furthermore, a smooth coating is provided on the rounded corners 235 of the left card plate 233 and the right card plate 234 respectively.

[0035] It can be seen from the above description that the provision of the smooth coating can facilitate the insertion of the injection needle 22 .

[0036] Furthermore, friction coatings for increasing friction are respectively provided on the sides of the left clamping plate 233 and the right clamping plate 234 facing the slot 231 .

[0037] Furthermore, the protective cover 23, the protective head 232, the left card plate 233 and the right card plate 234 are all made of transparent materials.

[0038] As can be seen from the above description, the protective cover 23, the protective head 232, the left clamping plate 233 and the right clamping plate 234 made of transparent material can facilitate observation by medical staff.

[0039] Furthermore, the protective cover 23, the protective head 232, the left clamping plate 233 and the right clamping plate 234 are of an integrated design.

[0040] Furthermore, a liquid suction groove 236 is provided on the side of the protective head 232 facing the injection head, and a liquid suction block is provided in the liquid suction groove 236 .

[0041] As can be seen from the above description, the arrangement of the liquid absorption groove 236 and the liquid absorption block can absorb the injection liquid or human body fluids remaining in the injection needle 22, thereby reducing or avoiding occupational exposure.

[0042] Furthermore, the liquid suction groove 236 is connected to the card slot.

[0043] As can be seen from the above description, the liquid suction groove 236 and the groove 231 are connected to facilitate molding.

[0044] Furthermore, the liquid-absorbing block is made of cotton.

[0045] Example 1

[0046] An anti-stab injection needle 22, comprising a needle tube 1 and a needle 2;

[0047] The needle 2 includes a connector 21, an injection needle 22 and a protective cover 23. The injection needle 22 is connected to the needle tube 1 through the connector 21.

[0048] The protective sleeve 23 is made of elastic material and is connected to the connector 21 on the side of the injection needle 22. The protective sleeve 23 is arc-shaped and has a semicircular groove 231 formed on one side of the protective sleeve 23 facing the injection needle 22. The groove 231 is arranged corresponding to the injection needle 22.

[0049] One end of the protective sleeve 23 connected to the connector 21 is the connecting end, and the other end is the free end. The free end is provided with a protective head 232 whose diameter is larger than the diameter of the injection needle 22; the slot 231 near the free end is provided with a left clamping plate 233 and a right clamping plate 234 arranged in a mirrored manner, and the left clamping plate 233 and the right clamping plate 234 are both made of elastic material; there is a gap between the left clamping plate 233 and the right clamping plate 234, and the distance of the gap is half to two-thirds of the outer diameter of the injection needle 22.

[0050] The injection needle 22 has a tip, and the protective cover 23 is disposed on one side of the tip of the injection needle 22 .

[0051] The edges of the left clamping plate 233 and the right clamping plate 234 away from the groove 231 are respectively rounded 235.

[0052] The rounded corners 235 of the left clamping plate 233 and the right clamping plate 234 are respectively provided with a smooth coating.

[0053] The sides of the left clamping plate 233 and the right clamping plate 234 facing the slot 231 are respectively provided with friction coatings for increasing friction.

[0054] The protective cover 23 , the protective head 232 , the left card plate 233 and the right card plate 234 are all made of transparent materials, such as medical silicone, PP (polypropylene), PU (polyurethane), medical TPE, etc.

[0055] The protective cover 23 , the protective head 232 , the left clamping plate 233 and the right clamping plate 234 are of an integrated design and are directly injection molded.

[0056] A liquid suction groove 236 is provided on a side of the protection head 232 facing the injection head, and a liquid suction block is provided in the liquid suction groove 236 .

[0057] The liquid suction groove 236 is communicated with the card slot.

[0058] The material of the liquid-absorbing block is cotton.

[0059] Example 2

[0060] An anti-stab injection needle 22, comprising a needle tube 1 and a needle 2;

[0061] The needle 2 includes a connector 21, an injection needle 22 and a protective cover 23. The injection needle 22 is connected to the needle tube 1 through the connector 21.

[0062] The protective sleeve 23 is made of elastic material and is connected to the connector 21 on the side of the injection needle 22. The protective sleeve 23 is arc-shaped and has a semicircular groove 231 formed on one side of the protective sleeve 23 facing the injection needle 22. The groove 231 is arranged corresponding to the injection needle 22.

[0063] One end of the protective sleeve 23 connected to the connector 21 is the connecting end, and the other end is the free end. The free end is provided with a protective head 232 whose diameter is larger than the diameter of the injection needle 22; the slot 231 near the free end is provided with a left clamping plate 233 and a right clamping plate 234 arranged in a mirrored manner, and the left clamping plate 233 and the right clamping plate 234 are both made of elastic material; there is a gap between the left clamping plate 233 and the right clamping plate 234, and the distance of the gap is half to two-thirds of the outer diameter of the injection needle 22.

[0064] The injection needle 22 has a tip, and the protective cover 23 is disposed on one side of the tip of the injection needle 22 .

[0065] The edges of the left clamping plate 233 and the right clamping plate 234 away from the groove 231 are respectively rounded 235.

[0066] The rounded corners 235 of the left clamping plate 233 and the right clamping plate 234 are respectively provided with a smooth coating.

[0067] The sides of the left clamping plate 233 and the right clamping plate 234 facing the slot 231 are respectively provided with friction coatings for increasing friction.

[0068] The protective cover 23 , the protective head 232 , the left card plate 233 and the right card plate 234 are all made of transparent materials, such as medical silicone, PP (polypropylene), PU (polyurethane), medical TPE, etc.

[0069] The protective cover 23 , the protective head 232 , the left clamping plate 233 and the right clamping plate 234 are of an integrated design and are directly injection molded.

[0070] Example 3

[0071] An anti-stab injection needle 22, comprising a needle tube 1 and a needle 2;

[0072] The needle 2 includes a connector 21, an injection needle 22 and a protective cover 23. The injection needle 22 is connected to the needle tube 1 through the connector 21.

[0073] The protective sleeve 23 is made of elastic material and is connected to the connector 21 on the side of the injection needle 22. The protective sleeve 23 is arc-shaped and has a semicircular groove 231 formed on one side of the protective sleeve 23 facing the injection needle 22. The groove 231 is arranged corresponding to the injection needle 22.

[0074] One end of the protective sleeve 23 connected to the connector 21 is the connecting end, and the other end is the free end. The free end is provided with a protective head 232 whose diameter is larger than the diameter of the injection needle 22; the slot 231 near the free end is provided with a left clamping plate 233 and a right clamping plate 234 arranged in a mirrored manner, and the left clamping plate 233 and the right clamping plate 234 are both made of elastic material; there is a gap between the left clamping plate 233 and the right clamping plate 234, and the distance of the gap is half to two-thirds of the outer diameter of the injection needle 22.

[0075] The edges of the left clamping plate 233 and the right clamping plate 234 away from the groove 231 are respectively rounded 235.

[0076] The protective cover 23 , the protective head 232 , the left card plate 233 and the right card plate 234 are all made of transparent materials, such as medical silicone, PP (polypropylene), PU (polyurethane), medical TPE, etc.

[0077] The protective cover 23 , the protective head 232 , the left clamping plate 233 and the right clamping plate 234 are of an integrated design and are directly injection molded.

[0078] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the description and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A stab-proof injection needle, characterized in that: Including syringe and needle; The needle includes a connector, an injection needle and a protective sleeve, and the injection needle is connected to the needle tube through the connector; The protective sleeve is made of elastic material and is connected to the connector on the side of the injection needle. The protective sleeve is arc-shaped and has a semicircular groove formed on one side of the protective sleeve facing the injection needle, and the groove is arranged corresponding to the injection needle. One end of the protective sleeve connected to the connector is the connecting end, and the other end is the free end. The free end is provided with a protective head with a diameter larger than the diameter of the injection needle; the slot near the free end is provided with a mirror-image left clamping plate and a right clamping plate, both of which are made of elastic material; there is a gap between the left clamping plate and the right clamping plate, and the distance of the gap is half to two-thirds of the outer diameter of the injection needle.

2. The stab-proof injection needle according to claim 1, characterized in that: The injection needle has a tip, and the protective cover is arranged on one side of the tip of the injection needle.

3. The stab-proof injection needle according to claim 1, characterized in that: The edges of the left and right clamping plates away from the groove are respectively rounded.

4. The stab-proof injection needle according to claim 1, characterized in that: The rounded corners of the left card plate and the right card plate are respectively provided with a smooth coating.

5. The stab-proof injection needle according to claim 1, characterized in that: The sides of the left clamping plate and the right clamping plate facing the slot are respectively provided with friction coatings that increase friction.

6. The stab-proof injection needle according to claim 1, characterized in that: The protective cover, protective head, left card plate and right card plate are all made of transparent materials.

7. The stab-proof injection needle according to claim 1, characterized in that: The protective cover, the protective head, the left clamping plate and the right clamping plate are of an integrated design.

8. The stab-proof injection needle according to claim 1, characterized in that: A liquid suction groove is provided on one side of the protection head facing the injection head, and a liquid suction block is provided in the liquid suction groove.

9. The stab-proof injection needle according to claim 8, characterized in that: The liquid suction groove is communicated with the card groove.

10. The stab-proof injection needle according to claim 8, characterized in that: The material of the liquid-absorbing block is cotton.

Images