Light needleless injector connecting rod

Abstract

The utility model discloses a portable needleless injector connecting rod, which relates to the technical field of needleless injectors, and comprises a push rod, a fixed rod head and a push handle, the fixed rod head is integrally fixed on one side of the push rod, a sealing plug is arranged on the inner side of the front end of the fixed rod head, the push handle is arranged on the other side of the push rod, and the push handle is arranged on the push rod. A flange is integrally fixed to the side, close to the push rod, of the push handle, a rubber layer is arranged on the inner wall of the flange and distributed in an annular shape, and a guide hole is formed in the middle of the other side of the push handle. According to the portable needleless injector, the connecting rod, the push rod and the fixing rod head are integrally machined and formed, so that the portable needleless injector is stable and reliable, the push rod and the fixing rod head are both made of aluminum profiles and are both of a hollow cylindrical structure, raw materials are saved, and meanwhile the connecting rod is low in overall density, light in weight, high in strength and portable to use; and the other end of the push rod is in clamping connection with the flange, so that the push rod can be quickly disassembled and is regularly cleaned and disinfected, and the maintenance is convenient and quick.

Description

Technical Field

[0001] The utility model relates to the technical field of needle-free syringes, in particular to a lightweight needle-free syringe connecting rod. Background Art

[0002] Needle-free injection, also known as jet injection, is a medical device that uses the instantaneous high pressure generated by a power source to make the drug (liquid or lyophilized powder) in the syringe pass through the nozzle to form a high-speed, high-pressure jet flow (flow rate is generally greater than 100m / s), so that the drug penetrates the outer layer of the skin to the subcutaneous, intradermal and other tissue layers to release its efficacy. The liquid injected by the needle-free syringe is absorbed quickly, and no needle is required, which can eliminate the pain and fear caused by needle injection.

[0003] Existing needle-free syringe connecting rods generally have a structural design that wastes raw materials, is not easy to use, and are difficult to disassemble between the push rod and the push handle of the needle-free syringe, which has limitations in use.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a lightweight needle-free syringe connecting rod is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a lightweight needle-free syringe connecting rod to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lightweight needle-free syringe connecting rod, comprising a push rod, a fixed rod head and a push handle, wherein the fixed rod head is integrally fixed to one side of the push rod, and a sealing plug is provided on the inner side of the front end of the fixed rod head, a push handle is installed on the other side of the push rod, and a flange is integrally fixed to the side of the push handle close to the push rod, a rubber layer is provided on the inner wall of the flange, and the rubber layer is distributed in a ring shape, and a guide hole is provided in the middle of the other side of the push handle.

[0007] Furthermore, the push rod and the fixed rod head are both made of aluminum profiles, and the push rod and the fixed rod head are integrally processed and formed.

[0008] Furthermore, the push rod and the fixed rod head are both hollow cylindrical structures, and the center line of the push rod coincides with the center line of the fixed rod head.

[0009] Furthermore, the push handle is a circular structure, and the flange on one side of the push handle is a circular hollow structure.

[0010] Furthermore, the other end of the push rod is snap-connected to the flange, and the outer side surface of the rear end of the push rod is tightly fitted to the inner side surface of the rubber layer.

[0011] Furthermore, the push rod, the flange and the push handle are in a concentric circle structure.

[0012] The utility model provides a lightweight needle-free syringe connecting rod, which has the following beneficial effects:

[0013] The utility model has a push rod and a fixed rod head that are integrally formed to make them stable and reliable; the push rod and the fixed rod head are both aluminum profiles and both are hollow cylindrical structures, which saves raw materials while making the overall density of the connecting rod low, light, and high in strength, making it easier to use; the other end of the push rod is snap-fitted to the flange for easy rapid disassembly of the push rod, thereby facilitating regular cleaning and disinfection of the push rod, and quick and convenient maintenance; the outer side surface of the rear end of the push rod is tightly fitted with the inner side surface of the rubber layer, so that the rubber layer can enhance the tightness of the push rod when connected and assembled with the flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of a connecting rod of a portable needle-free syringe of the utility model;

[0015] Figure 2 This is a front structural schematic diagram of a connecting rod of a portable needle-free syringe of the utility model;

[0016] Figure 3 It is a schematic diagram of the rear structure of a connecting rod of a portable needle-free syringe of the utility model;

[0017] Figure 4 The utility model is a schematic diagram of a top view of a connecting rod of a portable needle-free syringe.

[0018] In the figure: 1, push rod; 2, fixed rod head; 3, sealing plug; 4, push handle; 5, flange; 6, rubber layer; 7, guide hole. DETAILED DESCRIPTION

[0019] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0020] like Figure 1-Figure 4 As shown, a light needle-free syringe connecting rod comprises a push rod 1, a fixed rod head 2 and a push handle 4. The fixed rod head 2 is integrally fixed to one side of the push rod 1, and a sealing plug 3 is arranged on the inner side of the front end of the fixed rod head 2. The push rod 1 and the fixed rod head 2 are both made of aluminum profiles, and the push rod 1 and the fixed rod head 2 are integrally formed; the push rod 1 and the fixed rod head 2 are both hollow cylindrical structures, and the center line of the push rod 1 coincides with the center line of the fixed rod head 2;

[0021] The specific operation is as follows: the push rod 1 and the fixed rod head 2 are integrally processed and formed to make them stable and reliable. The push rod 1 and the fixed rod head 2 are both aluminum profiles and both have a hollow cylindrical structure, which saves raw materials and makes the overall density of the connecting rod low, light, and high in strength. It is relatively easy to use, and the inner side of the front end of the fixed rod head 2 is blocked by the sealing plug 3 to prevent the drug in the syringe from leaking.

[0022] like Figure 1-Figure 4 As shown, a push handle 4 is installed on the other side of the push rod 1, and a flange 5 is integrally fixed on the side of the push handle 4 close to the push rod 1, a rubber layer 6 is provided on the inner wall of the flange 5, and the rubber layer 6 is distributed in a ring shape, and a guide hole 7 is provided in the middle of the other side of the push handle 4; the push handle 4 is a circular structure, and the flange 5 on one side of the push handle 4 is a circular hollow structure; the other end of the push rod 1 is connected to the flange 5 by a snap-fit ​​connection, and the outer side surface of the rear end of the push rod 1 is tightly fitted with the inner side surface of the rubber layer 6; the push rod 1, the flange 5 and the push handle 4 are in a concentric circle structure;

[0023] The specific operation is as follows: the other end of the push rod 1 is snap-fitted to the flange 5 to facilitate quick disassembly of the push rod 1, thereby facilitating regular cleaning and disinfection of the push rod 1, and quick and convenient maintenance; the outer side surface of the rear end of the push rod 1 fits tightly with the inner side surface of the rubber layer 6 so that the rubber layer 6 can enhance the tightness of the push rod 1 and the flange 5 during assembly; the guide hole 7 of the push handle 4 is used to guide the firing to one side of the push rod 1; the flange 5 and the push handle 4 are an integrated structure that can enhance the structural strength of the push handle 4, avoiding the problem of excessive impact between the push rod 1 on one side of the push handle 4 and the medicine tube during the firing and injection process.

[0024] In summary, if Figure 1-Figure 4 As shown, when the light needle-free syringe connecting rod is used, the push rod 1 and the fixed rod head 2 can be integrally formed, and then one end of the push rod 1 is connected with the flange 5 by snapping. At this time, the outer side surface of the rear end of the push rod 1 is tightly fitted with the inner side surface of the rubber layer 6 so that the rubber layer 6 can enhance the tightness of the push rod 1 and the flange 5 when they are connected and assembled. This connection and assembly method is conducive to the rapid disassembly of the push rod 1, thereby facilitating the regular cleaning and disinfection of the push rod 1, and convenient and quick maintenance;

[0025] Then assemble it with the needle-free syringe. During use, the push rod 1 and the fixed rod head 2 are both aluminum profiles and both are hollow cylindrical structures, which saves raw materials and makes the overall density of the connecting rod low, light, and strong, making it easier to use. The inner side of the front end of the fixed rod head 2 is blocked by the sealing plug 3 to prevent the drug in the syringe from leaking, and the flange 5 and the push handle 4 are an integrated structure to enhance the structural strength of the push handle 4, avoiding the problem of excessive impact between the push rod 1 on one side of the push handle 4 and the medicine tube during the firing and injection process. In this way, the use process of the lightweight needle-free syringe connecting rod is completed.

[0026] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A lightweight needle-free syringe connecting rod, comprising a push rod (1), a fixed rod head (2) and a push handle (4), characterized in that: A fixed rod head (2) is integrally fixed to one side of the push rod (1), and a sealing plug (3) is provided on the inner side of the front end of the fixed rod head (2); a push handle (4) is installed on the other side of the push rod (1), and a flange (5) is integrally fixed to the side of the push handle (4) close to the push rod (1); a rubber layer (6) is provided on the inner wall of the flange (5), and the rubber layer (6) is distributed in a ring shape; a guide hole (7) is provided in the middle of the other side of the push handle (4).

2. A lightweight needle-free syringe connecting rod according to claim 1, characterized in that: The push rod (1) and the fixed rod head (2) are both made of aluminum profiles, and the push rod (1) and the fixed rod head (2) are integrally processed and formed.

3. A lightweight needle-free syringe connecting rod according to claim 1, characterized in that: The push rod (1) and the fixed rod head (2) are both hollow cylindrical structures, and the center line of the push rod (1) coincides with the center line of the fixed rod head (2).

4. A lightweight needle-free syringe connecting rod according to claim 1, characterized in that: The push handle (4) is a circular structure, and the flange (5) on one side of the push handle (4) is a circular hollow structure.

5. The light needle-free syringe connecting rod according to claim 1, characterized in that: The other end of the push rod (1) is snap-connected to the flange (5), and the outer side surface of the rear end of the push rod (1) is tightly fitted to the inner side surface of the rubber layer (6).

6. The light needle-free syringe connecting rod according to claim 1, characterized in that: The push rod (1), the flange (5) and the push handle (4) are in a concentric circle structure.

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