Medicament injection device

Abstract

The utility model discloses a medicament injection device, which relates to the technical field of medicament injection and comprises an injection needle tube, a connector is mounted at the output end of the injection needle tube, first mounting plates are symmetrically mounted at one end of the connector, a butt joint mounting component is mounted at one end of the connector, and a second mounting plate is mounted at the other end of the connector. The butt joint installation assembly comprises an installation pipe, a first insertion head, second insertion heads and second installation plates, the first insertion head and the second insertion heads are installed at the two ends of the installation pipe respectively, the installation pipe is connected with the connector through the first insertion head, and the second installation plates corresponding to the first installation plates are symmetrically installed on the two sides of the installation pipe. A worker applies pressure through the first mounting plate and the second mounting plate by using fingers, so that the worker can conveniently insert the first insertion head into the injection needle, and the injection needle is more convenient to mount.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of medicament injection, specifically to a medicament injection device. BACKGROUND

[0002] Injection administration is also a commonly used route of administration, and the main methods of injection administration include intramuscular injection, subcutaneous injection and intravenous injection. The injection device is used to inject the medicament into the patient's body.

[0003] The patent document CN221411429U discloses a medicament injection device. The medicament injection device in the patent document drives the protective block to move in protection of the needle by the sliding of the sliding block, thereby preventing the needle from being too long and exposed outside and reducing the risk of bending of the needle. The needle in the injection device is protected by the protective shell on the outside, and bending does not occur. However, the needle in the medicament injection device is difficult to install because the needle needs to be manually inserted tightly into the discharge end of the injection tube, and there is a lack of components for easy installation by the staff. UTILITY MODEL CONTENT

[0004] One object of the present application is to provide a medicament injection device to solve the technical problem of the prior art that the needle is difficult to install because the needle needs to be manually inserted tightly into the discharge end of the injection tube, and there is a lack of components for easy installation by the staff.

[0005] To achieve the above object, the utility model provides the following technical scheme: a medicament injection device, comprising an injection needle tube, a connecting head is installed at the output end of the injection needle tube, a first mounting plate is symmetrically installed at one end of the connecting head, a docking installation assembly is installed at one end of the connecting head, the docking installation assembly comprises an installation tube, a first insertion head, a second insertion head and a second mounting plate, the first insertion head and the second insertion head are respectively installed at both ends of the installation tube, the installation tube is connected with the connecting head through the first insertion head, and second mounting plates corresponding to the first mounting plates are symmetrically installed at both sides of the installation tube.

[0006] Preferably, one end of the second insertion head is provided with a mounting head, and one end of the mounting head is provided with an injection needle.

[0007] Preferably, a scale line is installed on the outside of the injection needle tube, and a use plate is symmetrically installed on the outside of one end of the injection needle tube.

[0008] Preferably, a piston assembly is installed inside the injection needle tube, the piston assembly is used to push the medicament inside the injection needle tube out, and the piston assembly comprises a piston rod, a pushing disc, a pushing piston and a piston sleeve.

[0009] Preferably, the piston rod is installed inside the injection needle tube, the push disc is installed at one end of the piston rod, the push piston is installed at the other end of the piston rod, and the push piston is located inside the injection needle tube, and the piston sleeve is installed outside the push piston.

[0010] Preferably, the piston rod is installed inside the injection needle tube, the push disc is installed at one end of the piston rod, the push piston is installed at the other end of the piston rod, and the push piston is located inside the injection needle tube, and the piston sleeve is installed outside the push piston.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1、The injection needle head is connected with the butt joint installation assembly in the utility model, so that the injection needle head can be installed through the butt joint installation assembly, the first insertion head in the butt joint installation assembly is inserted into the inside of the connecting head, the sealing performance of the connecting position needs to be very strong, so that the friction is large when the first insertion head is inserted, at this time, the staff applies pressure through the first installation plate and the second installation plate by using fingers, so that the staff can easily insert the first insertion head into the inside, so that the injection needle head is more convenient to install.

[0013] 2、When the injection device is used, in order to avoid that the injection needle head is exposed outside to cause danger, the injection needle head is disassembled at this time, so that the injection needle head is inserted into the inside of the installation hole through the connecting head, the through hole and the through hole, and the tail end of the injection needle head is inserted into the connecting head through the second insertion head to fix the injection needle head. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a perspective view of the utility model;

[0015] Figure 2 It is a structure schematic view of the injection needle tube of the utility model;

[0016] Figure 3 It is a structure schematic view of the utility model; Figure 1 It is a structure schematic view of the utility model;

[0017] Figure 4 It is a structure schematic view of the utility model.

[0018] In the drawing: 1, injection needle tube; 2, scale line; 3, use plate; 4, piston rod; 5, push disc; 6, installation hole; 7, push piston; 8, through hole; 9, piston sleeve; 10, connecting head; 11, first installation plate; 12, installation tube; 13, first insertion head; 14, second insertion head; 15, installation head; 16, second installation plate; 17, injection needle head. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0022] See also Figure 1 、 Figure 2 and Figure 3 , an embodiment of the present utility model provides: a drug injection device;

[0023] It includes an injection needle tube 1 and a docking installation component. A connector 10 is installed at the output end of the injection needle tube 1. A first mounting plate 11 is symmetrically installed at one end of the connector 10. A docking installation component is installed at one end of the connector 10. The docking installation component includes a mounting tube 12, a first insertion head 13, a second insertion head 14 and a second mounting plate 16. The first insertion head 13 and the second insertion head 14 are respectively installed at both ends of the mounting tube 12. The mounting tube 12 is connected to the connector 10 through the first insertion head 13. Second mounting plates 16 corresponding to the first mounting plate 11 are symmetrically installed on both sides of the mounting tube 12. A mounting head 15 is installed at one end of the second insertion head 14. An injection needle 17 is installed at one end of the mounting head 15. A scale line 2 is installed on the outside of the injection needle tube 1, and a use plate 3 is symmetrically installed on the outside of one end of the injection needle tube 1.

[0024] The injection needle tube 1 provides space for medicine injection, and the connecting head 10 provides a position for installation of the injection needle 17. When the injection device is used, the injection needle 17 needs to be installed at one end of the injection needle tube 1. During installation, the injection needle 17 is connected with the docking installation assembly, so that the injection needle 17 can be installed through the docking installation assembly. The first insertion head 13 in the docking installation assembly is inserted into the inside of the connecting head 10. Since the connection needs to have strong sealing performance, the friction is large when the first insertion head 13 is inserted. At this time, the staff applies pressure through the first mounting plate 11 and the second mounting plate 16 by using fingers, so that the staff can easily insert the first insertion head 13 into the inside, and the injection needle 17 is more convenient to install. The scale line 2 is convenient for observing the injection amount.

[0025] Please refer to Figure 1 and Figure 4 The utility model provides a kind of embodiment of medicine injection device;

[0026] Including piston assembly, the inside of injection needle tube 1 is equipped with piston assembly, piston assembly is used to push out the medicine inside injection needle tube 1, piston assembly includes piston rod 4, push disc 5, push piston 7 and piston sleeve 9, piston rod 4 is installed in the inside of injection needle tube 1, push disc 5 is installed at one end of piston rod 4, push piston 7 is installed at the other end of piston rod 4, and push piston 7 is located in the inside of injection needle tube 1, piston sleeve 9 is installed at the outside of push piston 7, one end of piston rod 4 is provided with mounting hole 6, and through hole 8 corresponding with mounting hole 6 is provided in the inside of push piston 7;

[0027] When injecting, piston assembly needs to be pushed, so that the medicine in the inside of injection needle tube 1 can be discharged through injection needle 17. Staff pushes piston rod 4 and push piston 7 by push disc 5. Piston sleeve 9 ensures the sealing performance between push piston 7 and injection needle tube 1. When the injection device is used, in order to avoid that injection needle 17 is exposed outside and causes danger, injection needle 17 is disassembled, and injection needle 17 is inserted into the inside of mounting hole 6 through connecting head 10, through hole 8 and piston sleeve 9. The tail end of injection needle 17 is inserted into connecting head 10 through second insertion head 14 to fix injection needle 17.

[0028] Working principle: before using medicine injection device, whether the medicine injection device has influence on use problem should be checked first. First, injection needle 17 is installed in one end of connecting head 10 through docking installation assembly. Then, pull piston assembly to suck medicine into the inside of injection needle tube 1. Use injection needle 17 to pierce into patient's body. Then, push piston assembly to make medicine enter into patient's body through injection needle 17, so as to complete medicine injection work.

[0029] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, no reference signs in the claims being regarded as limiting the claims concerned.

Claims

1. A drug injection device, comprising an injection needle (1), characterized in that: The output end of the injection needle tube (1) is installed with a connector (10), one end of the connector (10) is symmetrically installed with a first mounting plate (11), and one end of the connector (10) is installed with a docking mounting assembly, the docking mounting assembly comprising a mounting tube (12), a first insertion head (13), a second insertion head (14) and a second mounting plate (16), the first insertion head (13) and the second insertion head (14) are respectively installed at the two ends of the mounting tube (12), the mounting tube (12) is connected to the connector (10) through the first insertion head (13), and the two sides of the mounting tube (12) are symmetrically installed with second mounting plates (16) corresponding to the first mounting plate (11).

2. A drug injection device according to claim 1, characterized in that: One end of the second insertion head (14) is mounted with a mounting head (15), and one end of the mounting head (15) is mounted with an injection needle (17).

3. The drug injection device according to claim 1, characterized in that: A scale mark (2) is installed on the outside of the injection needle tube (1), and a use plate (3) is symmetrically installed on the outside of one end of the injection needle tube (1).

4. A drug injection device according to claim 3, characterized in that: A piston assembly is installed inside the injection needle tube (1), and the piston assembly is used to push out the medicine inside the injection needle tube (1). The piston assembly includes a piston rod (4), a pushing disk (5), a pushing piston (7) and a piston sleeve (9).

5. A drug injection device according to claim 4, characterized in that: The piston rod (4) is installed inside the injection needle tube (1), the pushing plate (5) is installed at one end of the piston rod (4), the pushing piston (7) is installed at the other end of the piston rod (4), and the pushing piston (7) is located inside the injection needle tube (1), and the piston sleeve (9) is installed on the outside of the pushing piston (7).

6. A drug injection device according to claim 5, characterized in that: One end of the piston rod (4) is provided with a mounting hole (6), and the interior of the pushing piston (7) is penetrated by a through hole (8) corresponding to the mounting hole (6).

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