Vagina sustained-release dosing device
By designing the airbag expansion and rotation block structure of the vaginal sustained release doser, the problem of drug reflux is solved, ensuring that the drug is maintained in the vagina, and improving the persistence and effectiveness of the treatment.
Patent Information
- Application Number
- CN202421796074.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-07-29
AI Technical Summary
After the administration of existing vaginal sustained-release dosing devices, the drug is prone to reflux and leads to outflow, affecting the treatment effect.
A vaginal sustained release drug delivery device is designed to support the shielding cloth through the airbag expansion, and the transport tube is separated by rotating blocks and push rod structures to ensure that the shielding cloth remains in the vagina and prevent drug from flowing out.
Effectively avoiding the outflow of drugs during use, improving the persistence and effectiveness of treatment.
Smart Images

Figure CN223054901U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of gynecology, and particularly relates to a vaginal sustained-release drug delivery device. Background Technique
[0002] In clinical gynecology, vaginal medication is the most commonly used and effective means for treating vaginal inflammation. It achieves the treatment purpose by using a drug delivery device to directly send the external medicine to the lesion site.
[0003] In the current vaginal sustained-release drug delivery device, after drug delivery, the drug may flow back, resulting in drug leakage and poor treatment effect.
[0004] For example, a vaginal sustained-release drug delivery device for gynecological care in a Chinese patent document (application publication number CN221061471U) of the prior art. This device is provided with a fixing structure. The end cap is moved to one side of the liquid storage tube, so that one end of the end cap contacts one end of the liquid storage tube. The end cap is rotated, and the end cap and one end of the liquid storage tube are in threaded connection, so that the end cap and the liquid storage tube are fixed to each other, realizing the function of facilitating disassembly of the device, thereby improving the convenience of the vaginal sustained-release drug delivery device for gynecological care during use. However, this prior art has such a problem: after drug delivery, the drug may flow back, resulting in drug leakage and poor treatment effect.
[0005] Therefore, in view of this current situation, there is an urgent need to design and produce a vaginal sustained-release drug delivery device to meet the actual use needs. Content of the Utility Model
[0006] The purpose of the utility model is to provide a vaginal sustained-release drug delivery device to solve the problems raised in the background technique.
[0007] To achieve the above purpose, the utility model provides the following technical solution: A vaginal sustained-release drug delivery device includes a first transport tube for vaginal sustained-release drug delivery. A stretchable shielding cloth is installed on the side of the first transport tube. A protective rubber for vaginal protection is connected to the side of the shielding cloth away from the first transport tube. An airbag is connected to the side of the first transport tube. The input end of the airbag is connected to an air delivery tube. A first sliding groove is opened at the bottom of the first transport tube. A connecting cylinder is sleeved inside the first transport tube. A first limiting block that is connected in a partitioned manner on the side of the connecting cylinder and is slidably connected to the first sliding groove. A piston is slidably connected inside the first transport tube.
[0008] Preferably, a second sliding groove is opened inside the piston, and a second limiting block for assisting vaginal sustained-release drug delivery is slidably connected inside the second sliding groove.
[0009] Preferably, a push rod is connected in a partitioned manner on the side of the second limiting block, and the end of the air delivery tube away from the airbag is connected to a connector.
[0010] Preferably, an air cylinder is connected to one end of the connector away from the gas transmission pipe, and a second transport pipe for vaginal sustained-release drug delivery is fixedly connected to the side of the connecting cylinder.
[0011] Preferably, a push plate is fixedly connected to one end of the push rod away from the second limiting block, and a framework is installed inside the shielding cloth.
[0012] Preferably, a drug delivery head is fixedly connected to the side of the first transport pipe.
[0013] Preferably, a medicine spraying port for vaginal sustained-release drug delivery is formed on the side of the drug delivery head.
[0014] Compared with the prior art, the technical effects and advantages of the present utility model are as follows:
[0015] For this vaginal sustained-release drug delivery device, air is transported into the inside of the gas transmission pipe through the air cylinder, and then transported into the inside of the airbag through the transportation of the gas transmission pipe. The shielding cloth is propped up by the inflation of the airbag. Rotate the second transport pipe to drive the first limiting block to rotate, disconnect the first transport pipe and the second transport pipe, and then rotate the push rod to drive the second limiting block to rotate, separate the push rod from the piston, and leave the shielding cloth and the first transport pipe in the body. This can prevent the drug from flowing down due to the user walking back and forth after drug delivery, thus affecting the use effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0017] Figure 1 It is a schematic structural diagram of the present utility model;
[0018] Figure 2 It is a schematic structural diagram of the second transport pipe of the present utility model;
[0019] Figure 3 It is a schematic structural diagram of the piston of the present utility model.
[0020] Explanation of the reference numerals in the drawings:
[0021] In the figure: 1, drug delivery head; 2, medicine spraying port; 3, first transport pipe; 4, shielding cloth; 5, protective rubber; 6, framework; 7, airbag; 8, air delivery pipe; 9, connector; 10, air pump; 11, first limiting block; 12, first sliding groove; 13, second transport pipe; 14, push rod; 15, push plate; 16, piston; 17, second limiting block; 18, second sliding groove; 19, connecting cylinder. Detailed implementation mode
[0022] In the following description, a large number of specific details are given to provide a more thorough understanding of the present utility model. However, it is obvious to those skilled in the art that the present utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present utility model, some technical features well known in the art are not described.
[0023] Unless otherwise defined, the directions such as up, down, left, right, front, back, inside and outside involved in this article are based on the up, down, left, right, front, back, inside and outside directions in the figure shown by the present utility model, and are hereby explained together.
[0024] The connection method can adopt existing methods such as bonding, welding, bolt connection, etc., subject to actual needs.
[0025] In order to solve the problem that after drug delivery is completed, the drug may flow back, resulting in drug outflow and poor treatment effect, as Figures 1 to 3 shown, a vaginal sustained-release drug delivery device includes a first transport pipe 3 for vaginal sustained-release drug delivery. A stretchable shielding cloth 4 is installed on the side of the first transport pipe 3. The shielding cloth 4 is waterproof and stretchable. One side of the shielding cloth 4 away from the first transport pipe 3 is connected with a protective rubber 5 for vaginal protection. The protective rubber 5 prevents the framework 6 from damaging the vagina. An airbag 7 is connected to the side of the first transport pipe 3. The input end of the airbag 7 is connected with an air delivery pipe 8. A first sliding groove 12 is formed in the side of the first transport pipe 3. A connecting cylinder 19 is sleeved inside the first transport pipe 3. A first limiting block 11 that is slidably connected with the first sliding groove 12 is connected to the side of the connecting cylinder 19 in a partitioned manner. A piston 16 is slidably connected inside the first transport pipe 3. The piston 16 closely adheres to the inside of the first transport pipe 3 and the second transport pipe 13. A second sliding groove 18 is formed inside the piston 16. A second limiting block 17 for assisting vaginal sustained-release drug delivery is slidably connected inside the second sliding groove 18.
[0026] A push rod 14 is connected to the side partition of the second limiting block 17. One end of the air delivery pipe 8 far from the airbag 7 is connected to a connector 9. One end of the connector 9 far from the air delivery pipe 8 is connected to a syringe 10. A second delivery pipe 13 for vaginal sustained-release drug delivery is fixedly connected to the side of the connecting cylinder 19. Rotating the second delivery pipe 13 drives the first rotating block 11 to rotate, separating the first delivery pipe 3 and the second delivery pipe 13. Then rotating the push rod 14 drives the second limiting block 17 to rotate, separating the push rod 14 and the piston 16, and leaving the shielding cloth 4 in the vagina. One end of the push rod 14 far from the second limiting block 17 is fixedly connected to a push plate 15. A framework is installed inside the shielding cloth 9. A drug delivery head 1 is fixedly connected to the side of the first delivery pipe 3. A medicine spraying port 2 for vaginal sustained-release drug delivery is opened on the side of the drug delivery head 1.
[0027] All structures are heat-resistant and waterproof-treated, and the instruments are heat-resistant and waterproof-treated.
[0028] Working principle
[0029] During the use of this vaginal sustained-release drug delivery device, the drug delivery head 1 and the medicine spraying port 2 are transported into the vagina. The push rod 14 and the push plate 15 are squeezed to transport the drug into the vagina. The syringe 10 is squeezed to transport air into the air delivery pipe 8, and then the air is transported into the airbag 7 through the transportation of the air delivery pipe 8. Through the inflation of the airbag, the angle of the protective rubber 5 is crushed and changed to provide support for the vagina to prevent the drug from flowing down. Then rotating the second delivery pipe 13 drives the first rotating block 11 to rotate, separating the first delivery pipe 3 and the second delivery pipe 13. Then rotating the push rod 14 drives the second limiting block 17 to rotate, separating the push rod 14 and the piston 16, and leaving the shielding cloth 4 in the vagina.
[0030] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, or the communication inside two components, and can be directly connected. "Up", "down", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the described object changes, the relative position relationship may change;
[0031] Second: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;
[0032] Finally: The above description is only the preferred embodiment of the present utility model and is not used to limit the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.
Claims
1. A vaginal sustained-release drug delivery device, comprising a first delivery tube (3) for vaginal sustained-release drug delivery, characterized in that: A stretchable shielding cloth (4) is installed on the side of the first transport pipe (3). A protective rubber (5) for vaginal protection is connected to the side of the shielding cloth (4) away from the first transport pipe (3). An airbag (7) is connected to the side of the first transport pipe (3). The input end of the airbag (7) is connected to an air delivery pipe (8). A first sliding groove (12) is formed in the cost of the first transport pipe (3). A connecting cylinder (19) is sleeved inside the first transport pipe (3). A first limiting block (11) that is connected to the first sliding groove (12) in a partitioned manner is connected to the side of the connecting cylinder (19). A piston (16) is slidably connected inside the first transport pipe (3).
2. The vaginal sustained-release drug delivery device according to claim 1, wherein: A second sliding groove (18) is formed inside the piston (16). A second limiting block (17) for assisting vaginal sustained-release drug delivery is slidably connected inside the second sliding groove (18).
3. The vaginal sustained-release drug delivery device according to claim 2, wherein: A push rod (14) is connected to the side of the second limiting block (17) in a partitioned manner. One end of the air delivery pipe (8) away from the airbag (7) is connected to a connector (9).
4. The vaginal sustained-release drug delivery device according to claim 3, wherein: One end of the connector (9) away from the air delivery pipe (8) is connected to an air cylinder (10). A second transport pipe (13) for vaginal sustained-release drug delivery is fixedly connected to the side of the connecting cylinder (19).
5. The vaginal sustained-release drug delivery device according to claim 4, characterized in that: One end of the push rod (14) away from the second limiting block (17) is fixedly connected to a push plate (15). A framework is installed inside the shielding cloth (4).
6. The vaginal sustained-release drug delivery device according to claim 5, wherein: A drug delivery head (1) is fixedly connected to the side of the first transport pipe (3).
7. The vaginal sustained-release drug delivery device according to claim 6, wherein: A medicine spraying port (2) for vaginal sustained-release drug delivery is formed on the side of the drug delivery head (1).
Citation Information
Patent Citations
Vagina slow-release dosing device for gynecological nursing
CN221061471U