Hand-held injection auxiliary device and hand-held injector

Abstract

The utility model provides a hand-held injection auxiliary device and a hand-held syringe, the hand-held injection auxiliary device comprises a support used for installing a syringe outer sleeve, a telescopic rod used for pushing a syringe core rod, a first rod body, a second rod body and an elastic component, the first rod body is installed on the top of the support, and the second rod body is installed on the top of the support. One end of the second rod body is hinged to one end of the first rod body, one end of the telescopic rod is hinged to the middle of the second rod body, and the other end of the telescopic rod penetrates through the middle of the first rod body and is exposed in the support. The two ends of the elastic component are connected with the other end of the first rod body and the other end of the second rod body in a one-to-one correspondence mode. Through the design of the handheld injection auxiliary device capable of using a general injector, the elastic component is used for assisting in force while the force is better applied, so that the injection is more labor-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of biomedical equipment, in particular to a hand-held injection assistance device and a hand-held syringe. Background Art

[0002] Animal immunization is an important link in antibody preparation. Mixing an antigen with an immunoadjuvant for immunization can enhance the body's immune response ability to the antigen or change the type of immune response. There are many types of adjuvants, and Freund's adjuvant is one of the most widely used adjuvants. Freund's adjuvant is a water-in-oil type adjuvant, and its basic structure is to disperse the aqueous phase (usually containing the antigen) in the oil phase to form a water droplet-like emulsion in the oil, aiming to prolong the release time of the antigen in the body and enhance and persist the immune response in this way. However, after mixing Freund's adjuvant, the fluidity of the antigen becomes very low. A common syringe injects by pressing the piston with the thumb, and it is very difficult to inject the antigen with a common syringe. There are also hand-held syringes on the market, but they are not suitable for injecting liquids with small injection volumes, poor fluidity, and requirements for single-use or sterility. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a hand-held injection assistance device and a hand-held syringe in view of the deficiencies of the prior art.

[0004] The technical solution of the utility model for solving the above technical problem is as follows: A hand-held injection assistance device includes: a bracket for installing a syringe outer sleeve, a telescopic rod for pushing a syringe plunger, a first rod body, a second rod body, and an elastic member. The first rod body is installed at the top of the bracket. One end of the second rod body is hinged to one end of the first rod body. One end of the telescopic rod is hinged to the middle of the second rod body. The other end of the telescopic rod penetrates through the middle of the first rod body and is exposed in the bracket. The two ends of the elastic member are respectively connected to the other end of the first rod body and the other end of the second rod body.

[0005] The beneficial effect of adopting the technical solution of the utility model is: By designing a hand-held injection assistance device that can use a general syringe, while exerting force better, it is assisted by an elastic member to make the injection more labor-saving.

[0006] Further, a screw rod is provided at the other end of the second rod body. The screw rod is connected to the second rod body by a thread. The two ends of the elastic member are respectively connected to the other end of the first rod body and the screw rod.

[0007] The beneficial effect of adopting the above further technical solution is: Adjusting the screw rod can adjust the elasticity of the elastic member to adapt to injection liquids with different viscosities.

[0008] Further, a plurality of first limiting rings are arranged on the outer wall of the telescopic rod along the axial direction of the telescopic rod. A pair of limiting handles are arranged at the top of the bracket. One end of each of the pair of limiting handles is hinged to the bracket. A limiting protrusion is arranged at one end of the limiting handle. The height of the limiting protrusion is adapted to the distance between two adjacent first limiting rings. The other ends of the pair of limiting handles are exposed outside.

[0009] The beneficial effect of adopting the above further technical solution is that the limiting handle can hold the telescopic rod to prevent the syringe from being accidentally pushed due to the pulling force generated by the elastic member.

[0010] Further, a first push plate is arranged at one end of the telescopic rod. A pair of rollers are rotatably arranged in the middle of the second rod body. The pair of rollers are in contact with the first push plate.

[0011] The beneficial effect of adopting the above further technical solution is that the arrangement of the first push plate and the rollers facilitates the abutment of the second rod body and the telescopic rod, reduces the friction force, and prevents jamming.

[0012] Further, a second push plate adapted to the top end of the syringe plunger is arranged at the other end of the telescopic rod.

[0013] The beneficial effect of adopting the above further technical solution is that it is convenient to push the syringe plunger through the second push plate to achieve the injection work.

[0014] Further, a pair of first limiting plates for limiting the side wall of the top end of the syringe plunger are installed at the bottom of the second push plate. The first limiting plates are in an arc plate structure. Limiting grooves are arranged at the ends of the pair of first limiting plates. A limiting strip for limiting the syringe plunger is slidably installed in the limiting grooves. The limiting strip is in a U-shaped structure.

[0015] The beneficial effect of adopting the above further technical solution is that the arrangement of the first limiting plates and the limiting strip facilitates the installation and disassembly of the syringe, and can adapt to the installation and fixation of syringes with different injection volumes and different specifications.

[0016] Further, the bracket includes: a top cover, a pair of second limiting plates, and a second limiting ring for limiting the syringe barrel. The second limiting plates are in an arc plate structure. The top cover is installed on the top of the pair of second limiting plates. The second limiting ring is installed at the bottom of the pair of second limiting plates by means of threads.

[0017] The beneficial effect of adopting the above further technical solution is that the arrangement of the second limiting plates and the second limiting ring facilitates the installation and disassembly of the syringe, and can adapt to the installation and fixation of syringes with different injection volumes and different specifications.

[0018] Further, the elastic member is a tension spring, and the first rod body and the second rod body are arc-shaped rod bodies.

[0019] The beneficial effects of adopting the above further technical solution are as follows: The elastic member is a tension spring, which enables the elastic member to pull the other end of the second rod body towards the other end of the first rod body, assisting in the injection work and reducing the labor intensity of the user. The first rod body and the second rod body are arc-shaped rod bodies, which are convenient for the user to hold the first rod body and the second rod body, improving the comfort and the user experience.

[0020] In addition, the present invention further provides a hand-held syringe, which includes the hand-held injection assistance device described in any one of the above, and further includes: a syringe body and a needle limit sleeve for adjusting the injection depth. An injection needle is provided on the syringe body, and the needle limit sleeve is sleeved on the injection needle.

[0021] The beneficial effects of adopting the technical solution of the present invention are as follows: By designing a hand-held injection assistance device that can use a general syringe, while exerting force better, it is assisted by an elastic member to make the injection more labor-saving. The exposure length of the needle can be controlled through the needle limit sleeve, thereby controlling the injection depth.

[0022] Further, the needle limit sleeve is of a cylindrical structure.

[0023] The beneficial effects of adopting the above further technical solution are as follows: The needle limit sleeve can adjust the exposure length of the needle by cutting or replacing needle limit sleeves of different lengths, thereby assisting in controlling the injection depth.

[0024] Advantages of additional aspects of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0025] Figure 1 It is one of the structural schematic diagrams of the hand-held injection assistance device provided by an embodiment of the present invention.

[0026] Figure 2 It is another structural schematic diagram of the hand-held injection assistance device provided by an embodiment of the present invention.

[0027] Figure 3 It is the third structural schematic diagram of the hand-held injection assistance device provided by an embodiment of the present invention.

[0028] Figure 4 It is the fourth structural schematic diagram of the hand-held injection assistance device provided by an embodiment of the present invention.

[0029] Figure 5The fifth structural schematic diagram of the hand-held injection assistance device provided by the embodiment of the present utility model.

[0030] Figure 6 The sixth structural schematic diagram of the hand-held injection assistance device provided by the embodiment of the present utility model.

[0031] Figure 7 The seventh structural schematic diagram of the hand-held injection assistance device provided by the embodiment of the present utility model.

[0032] Figure 8 The eighth structural schematic diagram of the hand-held injection assistance device provided by the embodiment of the present utility model.

[0033] Figure 9 The ninth structural schematic diagram of the hand-held injection assistance device provided by the embodiment of the present utility model.

[0034] Figure 10 The tenth structural schematic diagram of the hand-held injection assistance device provided by the embodiment of the present utility model.

[0035] Figure 11 The eleventh structural schematic diagram of the hand-held injection assistance device provided by the embodiment of the present utility model.

[0036] Figure 12 The twelfth structural schematic diagram of the hand-held injection assistance device provided by the embodiment of the present utility model.

[0037] Figure 13 The thirteenth structural schematic diagram of the hand-held injection assistance device provided by the embodiment of the present utility model.

[0038] Figure 14 The fourteenth structural schematic diagram of the hand-held injection assistance device provided by the embodiment of the present utility model.

[0039] Figure 15 The fifteenth structural schematic diagram of the hand-held injection assistance device provided by the embodiment of the present utility model.

[0040] Figure 16 The sixteenth structural schematic diagram of the hand-held injection assistance device provided by the embodiment of the present utility model.

[0041] Figure 17 The seventeenth structural schematic diagram of the hand-held injection assistance device provided by the embodiment of the present utility model.

[0042] Figure 18 The eighteenth structural schematic diagram of the hand-held injection assistance device provided by the embodiment of the present utility model.

[0043] Figure 19This is the nineteenth structural schematic diagram of the hand-held injection assistance device provided by the embodiment of the present utility model.

[0044] Explanation of the reference numerals in the attached drawings: 1. Syringe outer sleeve; 2. Bracket; 3. Syringe plunger rod; 4. Telescopic rod; 5. First rod body; 6. Second rod body; 7. Elastic member; 8. Screw; 9. First limit ring; 10. Limit handle; 11. Limit protrusion; 12. First push plate; 13. Roller; 14. Second push plate; 15. First limit plate; 16. Limit strip; 17. Top cover; 18. Second limit plate; 19. Second limit ring; 20. Syringe body; 21. Needle limit sleeve; 22. Injection needle. Specific implementation manners

[0045] The principles and features of the present utility model will be described below with reference to the attached drawings. The illustrated embodiments are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0046] As Figures 1 to 19 shown, the embodiment of the present utility model provides a hand-held injection assistance device, including: a bracket 2 for installing the syringe outer sleeve 1, a telescopic rod 4 for pushing the syringe plunger rod 3, a first rod body 5, a second rod body 6, and an elastic member 7. The first rod body 5 is installed at the top of the bracket 2. One end of the second rod body 6 is hinged to one end of the first rod body 5. One end of the telescopic rod 4 is hinged to the middle of the second rod body 6. The other end of the telescopic rod 4 penetrates through the middle of the first rod body 5 and is exposed in the bracket 2. The two ends of the elastic member 7 are respectively connected to the other end of the first rod body 5 and the other end of the second rod body 6.

[0047] The beneficial effect of adopting the technical solution of the present utility model is: by designing a hand-held injection assistance device that can use a general syringe, while better exerting force, it is assisted by an elastic member to make the injection more labor-saving.

[0048] As Figures 1 to 19 shown, further, a screw 8 is provided at the other end of the second rod body 6. The screw 8 is connected to the second rod body 6 by threads. The two ends of the elastic member 7 are respectively connected to the other end of the first rod body 5 and the screw 8.

[0049] The beneficial effect of adopting the above further technical solution is: adjusting the screw can adjust the elasticity of the elastic member to adapt to injection liquids with different viscosities.

[0050] As Figures 1 to 19As shown in the figure, further, a plurality of first limiting rings 9 are arranged on the outer wall of the telescopic rod 4 along the axial direction of the telescopic rod 4. A pair of limiting handles 10 are arranged at the top of the bracket 2. One end of the pair of limiting handles 10 is hinged to the bracket 2. A limiting protrusion 11 is arranged at one end of the limiting handle 10. The height of the limiting protrusion 11 is adapted to the distance between two adjacent first limiting rings. The other ends of the pair of limiting handles 10 are exposed outside.

[0051] The beneficial effect of adopting the above further technical solution is that the limiting handle can hold the telescopic rod to prevent the syringe from being accidentally pushed due to the pulling force generated by the elastic component.

[0052] As Figures 1 to 19 shown in the figure, further, one end of the telescopic rod 4 is provided with a first push plate 12. A pair of rollers 13 are rotatably arranged in the middle of the second rod body 6. The pair of rollers 13 are in contact with the first push plate 12.

[0053] The beneficial effect of adopting the above further technical solution is that the setting of the first push plate and the rollers facilitates the abutment of the second rod body and the telescopic rod, reduces the friction force, and prevents jamming.

[0054] As Figures 1 to 19 shown in the figure, further, the other end of the telescopic rod 4 is provided with a second push plate 14 adapted to the top end of the syringe plunger rod 3.

[0055] The beneficial effect of adopting the above further technical solution is that it is convenient to push the syringe plunger rod through the second push plate to realize the injection work.

[0056] As Figures 1 to 19 shown in the figure, further, a pair of first limiting plates 15 for limiting the side wall of the top end of the syringe plunger rod 3 are installed at the bottom of the second push plate 14. The first limiting plates 15 are of arc plate structure. Limiting grooves are arranged at the ends of the pair of first limiting plates 15. A limiting strip 16 for limiting the syringe plunger rod 3 is slidably installed in the limiting grooves. The limiting strip 16 is of U-shaped structure.

[0057] The beneficial effect of adopting the above further technical solution is that the setting of the first limiting plates and the limiting strip facilitates the installation and disassembly of the syringe, and can adapt to the installation and fixation of syringes with different injection volumes and different specifications.

[0058] As Figures 1 to 19 shown in the figure, further, the bracket 2 includes: a top cover 17, a pair of second limiting plates 18 and a second limiting ring 19 for limiting the syringe barrel 1. The second limiting plates 18 are of arc plate structure. The top cover 17 is installed on the top of the pair of second limiting plates 18. The second limiting ring 19 is installed at the bottom of the pair of second limiting plates 18 by means of threads.

[0059] The beneficial effects of adopting the above further technical solution are as follows: The setting of the second limiting plate and the second limiting ring facilitates the installation and disassembly of the syringe, and can adapt to the installation and fixation of syringes with different injection volumes and different specifications.

[0060] As Figures 1 to 19 shown, further, the elastic member 7 is a tension spring, and the first rod body 5 and the second rod body 6 are arc-shaped rod bodies.

[0061] The beneficial effects of adopting the above further technical solution are as follows: The elastic member is a tension spring, so that the elastic member pulls the other end of the second rod body towards the other end of the first rod body to assist in the injection work and reduce the labor intensity of the user. The first rod body and the second rod body are arc-shaped rod bodies, which facilitate the user to hold the first rod body and the second rod body, improve the comfort, and improve the user experience.

[0062] 1. Handheld injection assistance for better force application;

[0063] 2. The elastic component (elastic member 7) can provide assistance: The adjusting knob (screw rod) can adjust the elasticity of the elastic component (elastic member 7) to adapt to injection liquids with different viscosities; The buckle (limiting handle) can hold the transmission shaft connecting rod (telescopic rod) to prevent the pulling force generated by the elastic component from accidentally pushing the syringe.

[0064] 3. The syringe limiting ring (second limiting ring 19) can enable the device (handheld injection assistance device) to adapt to the installation and fixation of syringes with different injection volumes and different specifications.

[0065] The injection depth during the immunization process also has a great influence on the immunization effect. Usually, the injection needles are relatively long. In the prior art, it is necessary to rely on human experience to control the injection depth. The cost of specially producing needles with a specific length is relatively high. Therefore, an auxiliary injection device that can adjust the injection depth is also needed.

[0066] As Figures 1 to 19 shown, in addition, the present invention also provides a handheld syringe, which includes a handheld injection assistance device according to any one of the above, and further includes: a syringe body 20 and a needle limiting sleeve 21 for adjusting the injection depth. An injection needle 22 is provided on the syringe body 20, and the needle limiting sleeve 21 is sleeved on the injection needle 22.

[0067] The beneficial effects of adopting the technical solution of the present invention are as follows: By designing a handheld injection assistance device that can use a general syringe, while better applying force, it is assisted by an elastic member to make the injection more labor-saving. The exposure length of the needle can be controlled through the needle limiting sleeve, so as to control the injection depth.

[0068] Among them, the syringe body and the injection needle can be common products on the market.

[0069] As Figures 1 to 19 shown, further, the needle limiting sleeve 21 is of a cylindrical structure.

[0070] The beneficial effect of adopting the above further technical solution is that the needle limiting sleeve can adjust the exposed length of the needle by cutting or replacing needle limiting sleeves of different lengths, so as to assist in controlling the injection depth.

[0071] Aiming at the deficiencies of the prior art, the present utility model provides a hand-held injection assisting device (hand-held injection assisting device) that can use a general syringe, which can exert force better and is assisted by an elastic component (elastic part 7) to make the injection more labor-saving. In addition, the injection depth can be controlled by controlling the exposed length of the needle (injection needle) through the needle limiting sleeve. The needle limiting sleeve can adjust the exposed length of the needle (injection needle) by cutting / replacing needle limiting sleeves of different lengths, so as to assist in controlling the injection depth, and the needle limiting sleeve helps to adjust the injection depth.

[0072] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A hand-held injection assisting device, characterized in that: include: A bracket for installing a syringe jacket, a telescopic rod for pushing a syringe core rod, a first rod body, a second rod body and an elastic component, wherein the first rod body is installed on the top of the bracket, one end of the second rod body is hinged to one end of the first rod body, one end of the telescopic rod is hinged to the middle part of the second rod body, the other end of the telescopic rod passes through the middle part of the first rod body and is exposed in the bracket, and the two ends of the elastic component are connected to the other end of the first rod body and the other end of the second rod body in a one-to-one correspondence.

2. A handheld injection assisting device according to claim 1, characterized in that: The other end of the second rod is provided with a screw rod, and the screw rod is connected to the second rod through a thread, and the two ends of the elastic component are connected to the other end of the first rod and the screw rod in a one-to-one correspondence.

3. A handheld injection assisting device according to claim 1, characterized in that: A plurality of first limiting rings are provided on the outer wall of the telescopic rod along the axial direction of the telescopic rod, a pair of limiting handles are provided on the top of the bracket, one end of the pair of limiting handles is hinged to the bracket, one end of the limiting handle is provided with a limiting protrusion, the height of the limiting protrusion is adapted to the spacing between two adjacent first limiting rings, and the other ends of the pair of limiting handles are exposed to the outside.

4. A handheld injection assisting device according to claim 1, characterized in that: A first push plate is provided at one end of the telescopic rod, and a pair of rollers is rotatably provided at the middle of the second rod body, and the pair of rollers abut against the first push plate.

5. A hand-held injection assisting device according to claim 1, characterized in that: The other end of the telescopic rod is provided with a second push plate adapted to push the top end of the core rod of the syringe.

6. A handheld injection assisting device according to claim 5, characterized in that: A pair of first limiting plates for limiting the top side wall of the syringe core rod are installed at the bottom of the second push plate. The first limiting plates are arc plate structures. The ends of the pair of first limiting plates are provided with limiting grooves. Limiting strips for limiting the syringe core rod are slidably installed in the limiting grooves. The limiting strips are U-shaped structures.

7. A handheld injection assisting device according to claim 1, characterized in that: The bracket includes: a top cover, a pair of second limiting plates and a second limiting ring for limiting the syringe jacket, the second limiting plate is an arc plate structure, the top cover is installed on the top of the pair of second limiting plates, and the second limiting ring is installed on the bottom of the pair of second limiting plates through threads.

8. A handheld injection assisting device according to claim 1, characterized in that: The elastic component is a tension spring, and the first rod body and the second rod body are arc-shaped rod bodies.

9. A hand-held syringe, characterized in that: A hand-held injection assisting device comprising the above-mentioned any one of claims 1 to 8, further comprising: a syringe body and a needle limiting sleeve for adjusting the injection depth, wherein the syringe body is provided with an injection needle, and the needle limiting sleeve is sleeved on the injection needle.

10. A hand-held syringe according to claim 9, characterized in that: The needle limiting sleeve is a cylindrical structure.

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