Vagina administration device

Abstract

The utility model provides a vagina administration device, which relates to the technical field of medical instruments and comprises an injection tube, a spray head arranged at one end of the injection tube and a piston in the injection tube. The injection pipe is provided with an opening communicated with an inner cavity of the injection pipe, the opening is located at one end of the injection pipe in the propelling direction of the piston, the opening is detachably connected with a sealing component, the spray head is arranged on the sealing component, a connecting cavity is formed in the sealing component, and the sealing component is communicated with the inner cavity of the injection pipe through the connecting cavity. According to the device, the piston does not need to be pulled out to inject medicine into the injection pipe, medicine injection can be conducted through the opening communicated with the inner cavity of the injection pipe only by retreating the piston, then the opening is sealed through the sealing component, and medicine feeding operation can be conducted; and therefore, the operation is convenient. The piston is protected from environmental pollution, and cleanliness of an inner cavity of the injection pipe and liquid medicine is guaranteed; residual liquid medicine cannot be brought out by the piston, and the utilization rate of the liquid medicine during repeated medicine injection is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a vaginal medication device. Background Art

[0002] Common gynecological diseases such as vaginitis are often treated by injecting or taking medications, or by injecting medications into the vagina or cleaning the vagina with detergents.

[0003] The existing drug delivery device includes a housing, a piston and an injection head at the front end. When it is needed, the user needs to completely pull the entire piston out of the housing before injecting the drug solution into the inner cavity. After the injection is completed, the piston is pushed back to its original position, and finally the drug solution is discharged from the injection head by pushing the piston forward to complete a drug delivery.

[0004] However, this structure has some problems during the drug administration process. First, completely pulling out the entire piston makes the drug administration process inconvenient. In particular, the need to completely remove the piston each time increases the difficulty of operation; in addition, each time the piston is completely removed, it is easy to cause contamination of the piston head and piston rod and the liquid medicine thereon, because the piston may contact the environment during the process of removal and return, thereby introducing foreign substances to contaminate the liquid medicine. Finally, pulling out the entire piston may also cause the liquid medicine to overflow repeatedly in the inner cavity of the piston, reducing the utilization rate of the liquid medicine. Utility Model Content

[0005] The purpose of the utility model is to provide a vaginal drug delivery device, which can solve the above technical problems, simplify the operation of changing medicines, reduce environmental pollution, and reduce the waste of medicine solution.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] A vaginal medication device comprises an injection tube, a nozzle arranged at one end of the injection tube and a piston in the injection tube. The injection tube is provided with an opening connected to the inner cavity of the injection tube, the opening is detachable and connected with a sealing component.

[0008] Furthermore: the opening is located at one end of the injection pipe in the direction of piston advancement, the nozzle is arranged on the sealing component, a connecting cavity is arranged in the sealing component, and the sealing component is connected with the inner cavity of the injection pipe through the connecting cavity.

[0009] Furthermore: the connecting cavity profile is smoothly connected to the inner cavity profile of the injection tube.

[0010] Furthermore, the connecting cavity profile is a cylindrical surface that is the same as the inner cavity profile of the injection tube, and the piston can be smoothly pushed in the connecting cavity in the inner cavity of the injection tube and the sealing component.

[0011] Furthermore: the outer surface of the sealing component is smoothly connected to the outer surface of the injection pipe.

[0012] Furthermore: the sealing component and the opening are sealed and connected via a pipe thread.

[0013] Furthermore: the sealing component and the opening are sealed and connected via a hole-shaft fit.

[0014] Furthermore, one end of the injection tube provided with the nozzle is a raised section, and the profile of the axial cross section of the raised section is a smooth arc section, so that the arc of the transition from the nozzle to the injection tube body is larger, thereby improving the comfort of the patient.

[0015] Furthermore: the nozzle is provided with a plurality of spray holes which are evenly distributed circumferentially around the axis of the injection pipe.

[0016] Furthermore, the injection pipe and the nozzle are made of one or more of LDPE, PP, HDPE and PET.

[0017] Compared with the original technology, the utility model has the following beneficial effects:

[0018] 1. This device does not need to pull out the piston to inject medicine into the injection tube. You only need to retract the piston to inject medicine through the opening connected to the inner cavity of the injection tube, and then seal the opening with a sealing component to perform the drug administration operation. It is easy to operate without plugging and unplugging the piston.

[0019] 2. Protect the piston from environmental pollution and ensure the cleanliness of the inner cavity of the injection tube and the liquid medicine.

[0020] 3. No residual liquid medicine will be brought out by the piston, thus improving the utilization rate of liquid medicine during repeated injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 for Figure 1 View in the direction of A;

[0023] Figure 3 This is a schematic diagram of the split structure of the utility model;

[0024] In the figure:

[0025] 1. Injection tube; 1.1. Opening; 1.2. Inner cavity of injection tube; 2. Piston; 3. Sealing component; 3.1. Connecting cavity; 4. Spray hole. DETAILED DESCRIPTION

[0026] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] like Figure 1 As shown: A vaginal drug delivery device comprises an injection tube 1, a nozzle arranged at one end of the injection tube 1 and a piston 2 in the injection tube 1. The injection tube 1 is provided with an opening 1.1 connected to the injection tube inner cavity 1.2, and the opening 1.1 is located at one end of the injection tube 1 in the pushing direction of the piston 2. A sealing component 3 is detachably connected to the opening 1.1, and the nozzle is arranged on the sealing component 3. A connecting cavity 3.1 is arranged in the sealing component 3, and the sealing component 3 is connected to the injection tube inner cavity 1.2 through the connecting cavity 3.1. The profile of the connecting cavity 3.1 is smoothly connected to the profile of the injection tube inner cavity 1.2; the outer profile of the sealing component 3 is smoothly connected to the outer profile of the injection tube 1. The material of the injection tube 1 and the nozzle is one or more of LDPE, PP, HDPE, and PET.

[0029] In some embodiments, the sealing component 3 and the opening 1.1 are sealed and connected via pipe threads.

[0030] In other embodiments, the sealing component 3 and the opening 1.1 are sealed and connected via a hole-shaft fit.

[0031] In this embodiment, the sealing component 3 and the opening 1.1 are sealed and connected via a pipe thread.

[0032] The injection pipe 1 is provided with a nozzle having a convex section at one end, and the axial cross-section of the convex section has a smooth arc section. The nozzle comprises a plurality of nozzle holes 4, and the nozzle holes 4 are evenly distributed around the axis of the injection pipe 1.

[0033] The working principle of the utility model is as follows:

[0034] When it is necessary to add liquid medicine to the injection tube 1, first retract the piston 2 to leave enough space for storing medicine in the injection tube 1; then rotate and unscrew the sealing component 3 to separate it from the injection tube 1; then inject liquid medicine from the opening 1.1 of the injection tube 1; finally, tighten the sealing component 3 on the injection tube 1, and the drug administration operation can be carried out. During the drug administration operation, the piston 2 can be smoothly pushed between the inner cavity 1.2 of the injection tube and the connecting cavity 3.1 of the sealing component 3, and the liquid medicine is evenly sprayed out from the spray hole 4 of the spray head.

[0035] The device does not need to pull out the piston 2 to inject medicine into the injection tube 1. It only needs to retract the piston 2 to inject medicine through the opening 1.1 connected to the inner cavity 1.2 of the injection tube, and then seal the opening 1.1 with the sealing component 3 to perform the drug administration operation; it is convenient to operate without plugging and unplugging the piston 2. The piston 2 is protected from environmental pollution, ensuring the cleanliness of the inner cavity 1.2 of the injection tube and the liquid medicine; the residual liquid medicine will not be brought out by the piston 2, and the utilization rate of the liquid medicine is improved when the injection is repeated.

[0036] The above implementation is only to illustrate the technical concept and features of the utility model, and its purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly, and it cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A vaginal drug delivery device, comprising an injection tube, a nozzle disposed at one end of the injection tube and a piston in the injection tube, characterized in that: The injection tube is provided with an opening connected to the inner cavity of the injection tube, and the opening is detachable and connected with a sealing component; The opening is located at one end of the injection pipe in the direction of piston advancement, the nozzle is arranged on the sealing component, a connecting cavity is arranged in the sealing component, and the sealing component is connected with the inner cavity of the injection pipe through the connecting cavity.

2. A vaginal drug delivery device according to claim 1, characterized in that: The connecting cavity profile is smoothly connected to the inner cavity profile of the injection tube.

3. A vaginal drug delivery device according to claim 2, characterized in that: The connecting cavity profile is a cylindrical surface which is the same as the inner cavity profile of the injection tube.

4. A vaginal drug delivery device according to claim 1, characterized in that: The outer surface of the sealing component is smoothly connected to the outer surface of the injection pipe.

5. A vaginal drug delivery device according to claim 1, characterized in that: The sealing component and the opening are sealed and connected via pipe threads.

6. A vaginal drug delivery device according to claim 1, characterized in that: The sealing component and the opening are sealed and connected via a hole-shaft fit.

7. A vaginal drug delivery device according to claim 1, characterized in that: One end of the injection pipe provided with the nozzle is a convex section, and the profile of the axial section of the convex section is a smooth arc section.

8. A vaginal drug delivery device according to claim 1, characterized in that: The nozzle is provided with a plurality of spray holes which are evenly distributed in the circumferential direction around the axis of the injection pipe.

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