Drainage type balloon dilatation catheter

Abstract

The utility model discloses a drainage type balloon dilatation catheter which comprises a first drainage tube, a second drainage tube and a third drainage tube, the first drainage tube is sleeved with the second drainage tube, and the third drainage tube is integrally formed at the upper end of the first drainage tube. The first sleeve is arranged on the third drainage tube in a sleeving mode, the second sleeve is arranged on the third drainage tube in a sleeving mode, the two symmetrically-distributed buckle assemblies are arranged at the upper end of the first sleeve and the lower end of the second sleeve respectively, the fourth drainage tubes are distributed at equal intervals, the second drainage tube is connected with the balloon, and the interior of the second drainage tube is communicated with the interior of the balloon. By means of the drainage tube, it is guaranteed that sudden interruption caused by dislocation of the catheter in the drainage process is avoided, the risk of drainage failure caused by dislocation of the catheter is reduced, reliable guarantee is provided for continuous treatment of a patient, and the drainage tube is convenient to use. The stable recovery of the body function of the patient is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a drainage-type balloon dilation catheter. Background Technology

[0002] Percutaneous transhepatic cholangial drainage (PTCD) is a technique that involves placing a catheter percutaneously through the liver into the bile duct under imaging guidance. For many biliary tract diseases, PTCD is the preferred treatment option and can also be used as a palliative treatment.

[0003] PTCD surgery involves making a small incision in the patient's abdominal skin and using a special puncture needle, guided precisely by imaging equipment, to penetrate the skin, subcutaneous tissue, and liver parenchyma until it enters the dilated bile duct. Subsequently, a drainage tube is placed in the bile duct to drain the accumulated bile out of the body, thereby relieving bile duct obstruction, reducing bile duct pressure, and alleviating clinical symptoms.

[0004] However, with routine punctures and prolonged placement of the PTCD in the patient's body, complications such as PTCD catheter blockage and dislocation are very likely to occur. This is an important reason for drainage failure and secondary biliary tract infection, which places a great burden on the patient's physical and mental health. Utility Model Content

[0005] The purpose of this invention is to provide a drainage-type balloon dilation catheter to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a drainage balloon dilation catheter, including a drainage tube one, a drainage tube two, and a drainage tube three. The drainage tube two is sleeved outside the drainage tube one. The upper end of the drainage tube one is integrally formed with the drainage tube three. It also includes a sleeve one sleeved on the drainage tube three, a sleeve two sleeved on the drainage tube three, two symmetrically distributed snap-fit ​​assemblies respectively located at the upper end of the sleeve one and the lower end of the sleeve two, a balloon, and several drainage tubes four evenly distributed. The drainage tube two is connected to the balloon, and the interior of the drainage tube two communicates with the interior of the balloon. The snap-fit ​​assemblies are used to detachably fix the sleeve one and the sleeve two to the outer wall of the drainage tube three.

[0007] In a preferred embodiment: one end of the plurality of drainage tubes four is connected to the interior of drainage tube one, the other end of the drainage tube four is opened outside the drainage tube two, the interior of one end of the drainage tube is connected to the outside through the plurality of drainage tubes four, and the balloon is cylindrical in shape.

[0008] In a preferred embodiment: the buckle assembly includes a rear plate, a front plate, buckle pins and buckle blocks. The front plate is rotatably mounted on one end of the rear plate via a hinge member. Two symmetrically distributed buckle pins are fixedly mounted on the end face of the rear plate near the front plate, and a buckle block is fixedly connected to one end of each buckle pin.

[0009] In a preferred embodiment: the front plate is provided with two symmetrically distributed slots, the slots are matched with the positions of the locking posts, and the locking blocks are made of damping rubber.

[0010] In a preferred embodiment: the hinge member includes an extension plate and a damping shaft, one end of the two symmetrically distributed extension plates is fixedly connected to the rear plate, and the damping shaft is rotatably connected between the two extension plates, and the damping shaft is fixedly connected to the inner wall of one side of the front plate.

[0011] In a preferred embodiment: the drainage tube four is integrally formed with the drainage tube one, a diverter is installed at the upper end of the drainage tube two, the lower end of the drainage tube three passes through the diverter, one end of the diverter is connected to a pressure tube, one end of the pressure tube is connected to a pressure pump, and the balloon is made of polyethylene terephthalate material.

[0012] In a preferred embodiment: both ends of the balloon are provided with metal markers, which are symmetrically distributed. The metal markers are installed on the outer wall of the drainage tube one, and the end of the drainage tube three away from the drainage tube one is connected to a suction tube or a liquid storage bag.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0014] This invention utilizes a series of drainage tubes (Drainage Tube 1, Drainage Tube 2, Drainage Tube 3, a balloon, and Drainage Tube 4). The balloon fits tightly against the inner wall of the bile duct, and through its elasticity and friction with the bile duct wall, a stable and fixed structure is formed. This ensures that the drainage process will not be suddenly interrupted due to catheter dislocation, reducing the risk of drainage failure caused by catheter dislocation. It provides a reliable guarantee for the patient's continued treatment and avoids a series of serious complications that may be caused by drainage failure, such as liver damage due to bile stasis. This contributes to the stable recovery of the patient's bodily functions. The design of multiple drainage tubes (Drainage Tube 4) fundamentally changes the... The bile drainage method involves multiple drainage tubes evenly distributed outside the second drainage tube, increasing the channel area and uniformity of bile outflow. Furthermore, the use of sleeves one and two, along with a snap-fit ​​assembly, effectively restricts the freedom of movement of the third drainage tube by firmly fixing sleeves one and two to the outer wall of the third drainage tube, ensuring it remains straight. This prevents blockage caused by twisting and detachment due to torsional tension, further guaranteeing smooth drainage, reducing the risk of secondary biliary tract infection, aiding patient recovery, and minimizing the pain and financial burden of additional treatment required due to infection. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;

[0017] Figure 2 This is a utility model Figure 1 A magnified structural diagram at point A;

[0018] Figure 3 This is a schematic diagram of the card block structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the balloon of this utility model;

[0020] In the diagram: 1. Drainage tube one; 2. Drainage tube two; 3. Drainage tube three; 4. Sleeve one; 5. Sleeve two; 6. Balloon; 7. Drainage tube four; 8. Rear plate; 9. Front plate; 10. Locking post; 11. Locking block; 12. Locking groove; 13. Extension plate; 14. Damping shaft; 15. Diverter; 16. Pressure tube; 17. Pressure pump; 18. Metal MARK. 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] Please see Figures 1-4 This utility model provides a technical solution: a drainage balloon dilation catheter, including a drainage tube 1, a drainage tube 2, and a drainage tube 3. The drainage tube 2 is sleeved outside the drainage tube 1. The upper end of the drainage tube 1 is integrally formed with the drainage tube 3. It also includes a sleeve 4 sleeved on the drainage tube 3, a sleeve 5 sleeved on the drainage tube 3, two symmetrically distributed snap-fit ​​assemblies respectively located at the upper end of the sleeve 4 and the lower end of the sleeve 2, a balloon 6, and several drainage tubes 4 equidistantly distributed. The drainage tube 2 is connected to the balloon 6, and the interior of the drainage tube 2 communicates with the interior of the balloon 6. The snap-fit ​​assemblies are used to detachably fix the sleeve 4 and the sleeve 2 5 to the outer wall of the drainage tube 3.

[0023] During PTCD surgery, the drainage balloon 6 dilation catheter of this invention is first inserted percutaneously into the dilated bile duct using a conventional puncture method. Once the catheter reaches the predetermined position, pressure is applied to the pressure tube 16 by the pressure pump 17, causing the balloon 6 to inflate and tightly adhere to the inner wall of the bile duct, thus fixing the catheter and preventing dislocation. Simultaneously, bile can be drained from the body through drainage tube 1 and multiple drainage tubes 7, achieving effective drainage.

[0024] After the surgery, medical staff can easily fix sleeve 1 4 and sleeve 2 5 to the outer wall of drainage tube 3 3 using the snap fastener assembly. This prevents the drainage tube 3 3 from twisting or becoming dislodged due to the pulling force of the twist. It also prevents the drainage tube 3 3 from becoming blocked due to the twisting, which could lead to drainage failure and secondary biliary tract infection, thus avoiding a great burden on the patient's physical and mental health.

[0025] One end of each of the multiple drainage tubes 4 7 is connected to the inside of the drainage tube 1, and the other end of the drainage tube 4 7 is opened outside the drainage tube 2. The inside of the drainage tube 1 is connected to the outside through the multiple drainage tubes 4 7. The balloon 6 is cylindrical in shape.

[0026] The buckle assembly includes a rear plate 8, a front plate 9, buckle posts 10, and buckle blocks 11. The front plate 9 is rotatably mounted on one end of the rear plate 8 via a hinge member. Two symmetrically distributed buckle posts 10 are fixedly mounted on the end face of the rear plate 8 near the front plate 9. One end of each buckle post 10 is fixedly connected to a buckle block 11. The buckle assembly, together with the telescopic sleeve 1 4 and sleeve 2 5, facilitates the limiting and fixing of drainage tubes 3 of different lengths.

[0027] The front plate 9 is provided with two symmetrically distributed slots 12, the slots 12 are matched with the positions of the locking posts 10, and the locking block 11 is made of damping rubber.

[0028] When using the snap-fit ​​component, first, sleeve 2 5 is fitted onto the outside of drainage tube 3 3. After sleeve 2 5 is fitted into the appropriate position, press and rotate the front plate 9 toward the rear plate 8. The snap-fit ​​block 11 passes through the snap-fit ​​groove 12 and, in conjunction with the setting of the rear plate 8, fixes sleeve 2 5 onto drainage tube 3 3. Then, sleeve 1 4 is fitted onto the outside of sleeve 2 5. When sleeve 1 4 is fitted into the appropriate position, the snap-fit ​​component at the upper end is fixed again in the same way as above, thus completing the installation and fixing of sleeve 1 4.

[0029] The hinge component includes an extension plate 13 and a damping shaft 14. One end of the two symmetrically distributed extension plates 13 is fixedly connected to the rear plate 8, and the damping shaft 14 is rotatably connected between the two extension plates 13. The damping shaft 14 is fixedly connected to the inner wall of one side of the front plate 9.

[0030] The drainage tube 4 7 is integrally formed with the drainage tube 1. The upper end of the drainage tube 2 is equipped with a diverter 15. The lower end of the drainage tube 3 passes through the diverter 15. One end of the diverter 15 is connected to a pressure tube 16. One end of the pressure tube 16 is connected to a pressure pump 17. The balloon 6 is made of polyethylene terephthalate. The use of polyethylene terephthalate and high-pressure-resistant materials in the balloon 6 ensures safe expansion. While ensuring that the balloon 6 can withstand a certain pressure to achieve a tight fit to the inner wall of the bile duct, it can also adapt to the complex physiological environment inside the bile duct, making it less prone to rupture or deformation. This further enhances the reliability and durability of the catheter fixation, effectively reduces the risk of dislocation caused by the quality problems of the balloon 6 itself, and improves the safety and stability of the product.

[0031] Both ends of the balloon 6 are equipped with metal MARK18, which are symmetrically distributed and installed on the outer wall of the drainage tube 1. The metal MARK18 is clearly visible under imaging equipment, which helps doctors accurately determine the position and status of the balloon 6 and ensures the smooth progress of the operation. The end of the drainage tube 3 away from the drainage tube 1 is connected to the suction tube or liquid storage bag.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A drainage-type balloon dilation catheter, comprising a drainage tube one (1), a drainage tube two (2), and a drainage tube three (3), wherein the drainage tube two (2) is sleeved outside the drainage tube one (1), and the drainage tube three (3) is integrally formed at the upper end of the drainage tube one (1), characterized in that: It also includes a sleeve 1 (4) fitted on the drainage tube 3 (3), a sleeve 2 (5) fitted on the drainage tube 3 (3), two symmetrically distributed buckle assemblies respectively located at the upper end of the sleeve 1 (4) and the lower end of the sleeve 2 (5), a balloon (6), and several drainage tubes 4 (7) distributed at equal distances. The drainage tube 2 (2) is connected to the balloon (6), and the inside of the drainage tube 2 (2) is connected to the inside of the balloon (6). The buckle assembly is used to detachably fix the sleeve 1 (4) and the sleeve 2 (5) to the outer wall of the drainage tube 3 (3).

2. The drainage-type balloon dilation catheter according to claim 1, characterized in that: One end of each of the multiple drainage tubes (7) is connected to the inside of the drainage tube (1), and the other end of the drainage tube (7) is placed outside the drainage tube (2). The inside of the drainage tube (1) is connected to the outside through the multiple drainage tubes (7). The balloon (6) is cylindrical in shape.

3. The drainage-type balloon dilation catheter according to claim 1, characterized in that: The buckle assembly includes a rear plate (8), a front plate (9), a buckle post (10), and a buckle block (11). The front plate (9) is rotatably mounted on one end of the rear plate (8) via a hinge member. Two symmetrically distributed buckles (10) are fixedly mounted on the end face of the rear plate (8) near the front plate (9). A buckle block (11) is fixedly connected to one end of each of the two buckles (10).

4. The drainage-type balloon dilation catheter according to claim 3, characterized in that: The front plate (9) is provided with two symmetrically distributed slots (12), the slots (12) are matched with the positions of the pins (10), and the material of the block (11) is damping rubber.

5. A drainage-type balloon dilation catheter according to claim 3, characterized in that: The hinge component includes an extension plate (13) and a damping shaft (14). One end of the two symmetrically distributed extension plates (13) is fixedly connected to the rear plate (8). The damping shaft (14) is rotatably connected between the two extension plates (13). The damping shaft (14) is fixedly connected to the inner wall of one side of the front plate (9).

6. A drainage-type balloon dilation catheter according to claim 2, characterized in that: The drainage tube four (7) is integrally formed with the drainage tube one (1). The upper end of the drainage tube two (2) is equipped with a diverter (15). The lower end of the drainage tube three (3) passes through the diverter (15). One end of the diverter (15) is connected to a pressure tube (16). One end of the pressure tube (16) is connected to a pressure pump (17). The balloon (6) is made of polyethylene terephthalate material.

7. A drainage-type balloon dilation catheter according to claim 6, characterized in that: Both ends of the balloon (6) are provided with metal MARK (18), which are symmetrically distributed. The metal MARK (18) is installed on the outer wall of the drainage tube one (1), and the end of the drainage tube three (3) away from the drainage tube one (1) is connected to the suction tube or liquid storage bag.

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