Urethral administration device

Abstract

The utility model discloses a urethra dosing device which comprises a three-cavity tube, the three-cavity tube is provided with a balloon and a column bag which are communicated, the balloon is close to the output end of the three-cavity tube, the column bag is located on the rear portion of the balloon, the distance between the column bag and the balloon is 5-12 cm, the length of the column bag is 3 cm, and the maximum diameter of the column bag is 8 mm. The column bag is provided with a plurality of liquid storage cavities sinking inwards from the side face, and openings are formed in the side faces, facing the column bag, of the liquid storage cavities. The liquid storage cavity is spherical, and the opening is circular and smaller than the spherical surface of the liquid storage cavity. The diameter of the opening is smaller than 2mm, and the diameter of the liquid storage cavity is smaller than 3mm. And the balloon and the column bag are fixedly connected with the three-cavity tube. According to the urethra dosing device, the liquid storage cavities are formed around the column bag to store liquid medicine, so that the liquid medicine can be automatically extruded outwards while the column bag is inflated, and the better urethra dilatation effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of urethral drug delivery device technology, specifically to a urethral drug delivery device. Background Technology

[0002] Male urethral stricture is a common urological condition, which can be classified into three categories according to its etiology: congenital, inflammatory, and traumatic. Severe urethral stricture can lead to hydronephrosis and kidney damage. Some cases may be complicated by periurethritis, periurethral abscess, or even rupture into the scrotum and perineum, forming a persistent urethral fistula. Urinary tract and genital tract infections are also common complications.

[0003] Male urethral stricture requires urethral dilation, and the effect is better when combined with medication. A common current practice is to dilate the urethra using a metal urethral probe, but this method is uncomfortable and often causes unnecessary pain for the patient. Another method involves inserting a three-lumen two-balloon tube into the urethra, with one balloon positioned at the stricture. Repeated inflation of the balloon dilates the stricture. However, current three-lumen two-balloon tubes lack a balloon with medication delivery capability, making it impossible to administer medication simultaneously with repeated inflation, which is a drawback. Utility Model Content

[0004] The purpose of this invention is to provide a urethral delivery device to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses a urethral drug delivery device, comprising a three-lumen tube, wherein the three-lumen tube is provided with a balloon and a cylindrical balloon connected together, the balloon being close to the output end of the three-lumen tube, and the cylindrical balloon being located behind the balloon and spaced 5-12 cm apart, the cylindrical balloon being 3 cm long and having a maximum diameter of 8 mm;

[0007] The sac has several inwardly recessed liquid storage chambers, and the liquid storage chambers have openings facing the side of the sac.

[0008] As an improvement, the liquid storage cavity is spherical, the opening is circular, and the opening is smaller than the spherical surface of the liquid storage cavity.

[0009] As an improvement, the opening diameter is less than 2 mm, and the liquid storage chamber diameter is less than 3 mm.

[0010] As an improvement, the balloon, the cylindrical balloon, and the three-lumen tube are fixedly connected.

[0011] As an improvement, the liquid storage chamber is provided with a fixedly connected soft towel or sponge.

[0012] The advantages of this invention compared with the prior art are as follows: the capsule is pre-filled with water through one of the openings of the three-lumen tube, so that the liquid storage chamber is squeezed and closes the opening. Then the capsule is placed into the liquid medicine, and the capsule is drained of water to a natural state (relaxation). The liquid storage chamber automatically returns to a spherical shape (natural state) and simultaneously draws the liquid medicine into the interior, thus completing the filling process.

[0013] During urethral dilation, the three-lumen two-balloon tube is inserted into the urethra, and the balloon is inserted into the bladder. When inflated with water, it acts as a support. The balloon is located at the urethral stricture and is inflated with water to the appropriate diameter. During the indwelling time, the balloon is repeatedly inflated and deflated. During this process, the reservoir is compressed, forcing the internal medication out of the opening. This achieves dilation of the urethral stricture while simultaneously administering medication to repair and reshape it, preventing excessive granulation tissue formation during the healing process, which could lead to further stricture. After a period of time, the three-lumen two-balloon tube is removed, and the urethral stricture is dilated.

[0014] This urethral medication delivery device has multiple fluid storage chambers around the balloon to store medication. When the balloon is inflated, the medication is automatically squeezed out, achieving a better urethral dilation effect. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings listed below are only some structural schematic diagrams of this utility model, and not all of them.

[0016] Figure 1 This is a schematic diagram of the structure of a urethral drug delivery device according to this utility model.

[0017] Figure 2 This is a schematic diagram of the structure of the bladder of a urethral drug delivery device according to this utility model.

[0018] Figure 3 This is a cross-sectional view of the bulb of a urethral drug delivery device according to this utility model.

[0019] Figure label:

[0020] 1. Three-lumen tube; 2. Balloon; 3. Cylindrical balloon; 4. Reservoir; 5. Opening; Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of the embodiments of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Furthermore, the terms "first," "second," and "third" are used only for distinguishing descriptions and should not be interpreted as indicating or implying relative importance. The use of terms such as "horizontal," "vertical," and "suspended" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be perfectly horizontal, but can be slightly tilted.

[0024] In the description of the embodiments of this utility model, the terms "multiple" or "several" refer to at least two.

[0025] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] This embodiment is combined with the appendix Figures 1 to 3 This paper provides a detailed description of a urethral delivery device.

[0027] This embodiment provides a urethral drug delivery device, including a three-lumen tube 1. The three-lumen tube 1 is provided with a balloon 2 and a cylindrical balloon 3 that are connected. The balloon 2 is close to the output end of the three-lumen tube 1, and the cylindrical balloon 3 is located behind the balloon 2 and spaced 5 to 12 centimeters apart. The cylindrical balloon 3 is 3 centimeters long and has a maximum diameter of 8 millimeters.

[0028] The sac 3 is provided with several liquid storage chambers 4 that are recessed inward from the side, and the liquid storage chambers 4 have openings 5 ​​facing the side of the sac 3.

[0029] The liquid storage cavity 4 is spherical, and the opening 5 is circular, with the opening 5 being smaller than the spherical surface of the liquid storage cavity 4.

[0030] The diameter of the opening 5 is less than 2 mm, and the diameter of the liquid storage chamber 4 is less than 3 mm.

[0031] The balloon 2, the cylindrical balloon 3, and the three-lumen tube 1 are fixedly connected.

[0032] The liquid storage chamber 4 contains a fixedly connected soft towel or sponge.

[0033] In practice, water is first filled into the bladder 3 through one of the openings of the three-lumen tube 1, so that the liquid storage chamber 3 is squeezed and adheres to the opening 4. Then, the bladder 3 is placed into the liquid, and water is drained from the bladder 3 to its natural state (relaxation). The liquid storage chamber 3 automatically returns to its spherical shape (natural state) and simultaneously draws the liquid into its interior, thus completing the filling process.

[0034] During urethral dilation, the three-lumen two-balloon tube is inserted into the urethra, and balloon 2 is inserted into the bladder and inflated with water to act as a support. Balloon 3 is located at the urethral stricture and is inflated with water to a suitable diameter. During the indwelling time, water is repeatedly inflated and deflated. During this process, the reservoir 3 is compressed, causing the internal medication to be squeezed out from the opening 4. This achieves dilation of the urethral stricture while simultaneously administering medication to repair and reshape it, preventing excessive granulation tissue formation during the healing process and thus preventing further stenosis. After a period of time, the three-lumen two-balloon tube is removed, and the urethral stricture is dilated.

[0035] The liquid storage chamber 4 contains a fixedly connected soft towel or sponge, which can increase the adsorption and slow release properties of the liquid medicine.

[0036] The present invention and its embodiments have been described above. This description is not restrictive, and the actual scope of protection is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this invention should be included within the scope of protection of this invention. Therefore, the scope of protection of this invention should be determined by the scope of the claims.

Claims

1. A urethral applicator, characterized in that The invention relates to a three-cavity tube (1) comprising a communicating balloon (2) and a columnar balloon (3), wherein the balloon (2) is close to the output end of the three-cavity tube (1), the columnar balloon (3) is located behind the balloon (2) and is spaced 5-12 cm apart, the columnar balloon (3) is 3 cm long and the maximum diameter is 8 mm. The columnar balloon (3) is provided with a plurality of inwardly recessed liquid storage cavities (4) on the side surface, and the liquid storage cavities (4) have openings (5) on the side surface of the columnar balloon (3).

2. A urethral applicator according to claim 1, characterised in that The liquid storage cavities (4) are spherical, the openings (5) are circular, and the openings (5) are smaller than the spherical surface of the liquid storage cavities (4).

3. A urethral applicator according to claim 2, wherein The diameter of the openings (5) is less than 2 mm, and the diameter of the liquid storage cavities (4) is less than 3 mm.

4. A urethral applicator according to claim 1, wherein: The balloon (2) and the columnar balloon (3) are fixedly connected with the three-cavity tube (1).

5. A urethral applicator according to claim 1, wherein: The liquid storage cavities (4) are fixedly connected with a soft towel or a sponge.

Images