Drainage catheter indwelling fixator
By using a movable fixator and locking block structure for the drainage catheter indwelling fixator, the problem of insufficient fixation position and model applicability in the existing technology is solved, achieving stable fixation and flexible adjustment, and is suitable for drainage tubes of various sizes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-04-03
AI Technical Summary
Existing drainage catheter fixation devices have limitations in terms of fixation position and model applicability, and cannot flexibly adjust the fixation position or adapt to drainage tubes of different sizes.
A drainage catheter indwelling fixation device was designed, which adopts a movable fixation device and a locking block structure. The fixed position can be adjusted by the locking groove cooperation, and the movable outer tube and inner tube structure can adapt to drainage catheters of different sizes. Stable fixation is achieved by using springs and tension springs for connection.
It achieves stable fixation of the drainage catheter, has a wide range of applications, and can flexibly adjust the fixation position and adapt to drainage tubes of different sizes, thus improving the applicability and flexibility of the fixator.
Smart Images
Figure CN224070938U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a drainage catheter indwelling fixation device. Background Technology
[0002] Drainage catheter fixation devices belong to the field of medical device technology. They are mainly used to fix various drainage catheters during medical procedures to ensure the stability of the drainage catheter position and prevent catheter displacement or dislodgement, thereby ensuring drainage effectiveness and patient safety.
[0003] Existing drainage catheter fixation devices mainly consist of a clamp body and a clamping device. The drainage catheter is placed in the clamp body, and the clamping device, such as bolts or springs, clamps the catheter to achieve the effect of fixing the drainage catheter.
[0004] Existing drainage catheter fixation devices have certain shortcomings. First, the position is fixed during fixation and the angle cannot be changed. The structure is simple and has great limitations. Second, during fixation, existing fixation devices are only applicable to standard-sized drainage tubes and cannot be changed according to the model, resulting in a narrow range of applications. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a drainage catheter indwelling fixator, which aims to improve the problems of fixed position and limited fixation models in the prior art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a drainage catheter indwelling fixator, comprising a drainage catheter body, a movable fixator provided on the outer wall of the drainage catheter body, a pressing block slidably connected to the inner wall of the movable fixator, a pressing side plate fixedly connected to the side wall of the pressing block, a spring one fixedly connected to the bottom of the pressing side plate, a spring two fixedly connected to the inside of the movable fixator, an inner moving block fixedly connected to one end of the spring two, a locking block fixedly connected to the side wall of the inner moving block, a locking groove provided on the outer wall of the drainage catheter body, and a fixing component fixedly connected to the side wall of the movable fixator, the fixing component being used for connecting and fixing the drainage catheter body to the external fixing structure;
[0007] As a further description of the above technical solution: the first spring is fixedly connected to the inner wall of the movable fixing device, the first spring and the pressing side plate are symmetrically arranged on both sides of the pressing block, and the second spring is fixedly arranged symmetrically on both sides of the inner wall of the movable fixing device;
[0008] As a further description of the above technical solution: the fixing component includes a sliding connecting rod, which is fixedly connected to the side wall of the inner moving block. The other end of the sliding connecting rod is fixedly connected to a connecting fixing block. The side wall of the connecting fixing block is provided with a connecting fixing groove. The moving fixing devices are symmetrically arranged on the outer wall of the drainage tube body, and clamping grooves are provided between the moving fixing devices.
[0009] As a further description of the above technical solution: the side wall of the movable fixation device is provided with a fixing hole, the inner wall of the fixing hole is fixedly connected to a movable outer tube, the inner wall of the other fixing hole is fixedly connected to a movable inner tube, and a tension spring is fixedly connected between the two sets of movable fixation devices.
[0010] As a further description of the above technical solution: the movable outer tube is disposed on the outer wall of the movable inner tube and the movable outer tube and the movable inner tube are slidably connected, and the tension spring is disposed in the middle of the movable outer tube and the movable inner tube;
[0011] As a further description of the above technical solution: the movable outer tube and the movable inner tube are symmetrically arranged at both ends of the movable fixator, and a catheter needle is fixedly connected to the bottom of the drainage catheter body;
[0012] As a further description of the above technical solution: a transition tube is fixedly connected to the top of the drainage catheter body, a connecting tube is fixedly connected to the top of the transition tube, and an external flexible tube is fixedly connected to the top of the connecting tube.
[0013] As a further description of the above technical solution: a pressure tube is fixedly connected to the top of the transition tube, and the pressure tube is symmetrically arranged on both sides of the drainage catheter body.
[0014] This utility model has the following beneficial effects:
[0015] 1. In this utility model, the movable fixing device is designed so that the internal locking block of the movable fixing device cooperates with the locking groove on the body of the drainage tube to stably fix the body of the drainage tube in the clamping groove in the middle of the movable fixing device. Furthermore, the inner moving block can be moved backward by the action of the pressing block. At this time, the locking block moves out of the inside of the locking groove, and the fixed position is changed by the movable fixing device. This is convenient, quick, and widely applicable.
[0016] 2. In this utility model, the movable outer tube structure is set up, with the movable outer tube and the movable inner tube respectively set inside the two sets of movable fixers. The movable outer tube is set outside the movable inner tube and the movable inner tube can only move inside the movable outer tube. Then, the movable fixers are connected by a tension spring, which can realize the change of the distance between the movable fixers and can better fix the drainage tube body of different sizes, with a wide range of applications. Attached Figure Description
[0017] Figure 1 This is a three-dimensional schematic diagram of a drainage catheter indwelling fixation device proposed in this utility model;
[0018] Figure 2 This is a schematic diagram of the movable outer tube of a drainage catheter indwelling fixation device proposed in this utility model;
[0019] Figure 3 This is a schematic diagram of the internal moving block of a drainage catheter indwelling fixation device proposed in this utility model;
[0020] Figure 4 This is a schematic diagram of the tension spring structure of a drainage catheter indwelling fixation device proposed in this utility model.
[0021] Legend:
[0022] 1. Drainage catheter body; 2. Slot; 3. Catheter needle; 4. Movable fixator; 5. Connecting fixation slot; 6. Connecting fixation block; 7. Pressing block; 8. Transition tube; 9. Pressure tube; 10. Connecting tube; 11. External hose; 12. Movable outer tube; 13. Clamping slot; 14. Fixing hole; 15. Pressing side plate; 16. Spring one; 17. Slot; 18. Inner moving block; 19. Spring two; 20. Sliding connecting rod; 21. Movable inner tube; 22. Tension spring. Detailed Implementation
[0023] 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.
[0024] Reference Figures 1-4One embodiment of this utility model is a drainage catheter indwelling fixation device, which includes a drainage catheter body 1 for the function of a catheter and for transporting liquid. A movable fixation device 4 is provided on the outer wall of the drainage catheter body 1. The function of the movable fixator 4 is to fix the drainage catheter body 1. A pressing block 7 is slidably connected to the inner wall of the movable fixator 4. A pressing side plate 15 is fixedly connected to the side wall of the pressing block 7. The pressing side plate 15 is connected to the outer wall of the pressing block 7, achieving the same movement as the pressing block 7. A spring 16 is fixedly connected to the bottom of the pressing side plate 15, controlling the reset of the pressing block 7. A spring 2 19 is fixedly connected inside the movable fixator 4. An inner moving block 18 is fixedly connected to one end of the spring 2 19. The inner moving block 18 can achieve reset and position movement under the action of the spring 2 19. A locking block 17 is fixedly connected to the side wall of the inner moving block 18. A locking groove 2 is opened on the outer wall of the drainage catheter body 1, used to cooperate with the locking block 17 to achieve a fixed connection. The side wall of the movable fixator 4 is fixed... The system is equipped with a fixing component for connecting and fixing the drainage catheter body 1 to the external fixing structure. Spring 16 is fixedly connected to the inner wall of the movable fixing device 4. Spring 16 and the pressing side plate 15 are symmetrically arranged on both sides of the pressing block 7. Spring 2 19 is fixedly arranged symmetrically on both sides of the inner wall of the movable fixing device 4. The fixing component includes a sliding connecting rod 20, which provides greater stability and better performance. The sliding connecting rod 20 is fixedly connected to the side wall of the inner moving block 18. The other end of the sliding connecting rod 20 is fixedly connected to a connecting fixing block 6. The side wall of the connecting fixing block 6 is provided with a connecting fixing groove 5. The movable fixing devices 4 are symmetrically arranged on the outer wall of the drainage catheter body 1. A clamping groove 13 is provided between the movable fixing devices 4. The clamping groove 13 is used to fix the drainage catheter body 1 according to the size. The connecting fixing groove 5 is used to connect with the outside.
[0025] Reference Figures 1-4 The movable fixation device 4 has a fixing hole 14 on its side wall. A movable outer tube 12 is fixedly connected to the inner wall of the fixing hole 14, and a movable inner tube 21 is fixedly connected to the inner wall of another fixing hole 14. A tension spring 22 is fixedly connected between the two sets of movable fixation devices 4. The tension spring 22 is located inside the fixing hole 14 and is used to connect the movable fixation devices 4. When connecting, the movable inner tube 21 slides inside the movable outer tube 12, which can ensure that the two sets of movable fixation devices 4 will not change position. The movable outer tube 12 is located on the outer wall of the movable inner tube 21 and the movable outer tube 12 and the movable inner tube 21 form a sliding connection. The tension spring 22 is located in the middle of the movable outer tube 12 and the movable inner tube 21. The movable outer tube 12 and the movable inner tube 21 are symmetrically arranged at both ends of the movable fixation device 4. A catheter needle 3 is fixedly connected to the bottom of the drainage catheter body 1. The function of the catheter needle 3 is to transport liquid.
[0026] Reference Figure 1 The top of the drainage catheter body 1 is fixedly connected to a transition tube 8 for transitioning liquid and ensuring smooth liquid transport. The top of the transition tube 8 is fixedly connected to a connecting tube 10 for connecting to the outside. The top of the connecting tube 10 is fixedly connected to an external hose 11, which is used to transport liquid. The top of the transition tube 8 is fixedly connected to a pressure tube 9, which is used to change the pressure and thus change the liquid transport speed. The pressure tubes 9 are symmetrically arranged on both sides of the drainage catheter body 1.
[0027] Working principle: First, the movable retainer 4 is pulled together, causing the inner movable tube 21 and outer movable tube 12 to move. Under the action of the tension spring 22, the distance between them changes, thus changing the size of the clamping groove 13. The clamping groove 13 is then fitted onto the outer wall of the drainage tube body 1. The tension spring 22 then contracts according to the size of the drainage tube body 1, clamping it. Next, the locking block 17 is aligned with the locking groove 2 on the drainage tube body 1. After alignment, the inner movable block 18 moves forward under the action of the spring 19. At this point, the locking block 17 cooperates with the locking groove 2 to fix the movable retainer 4 onto the drainage tube body 1, thereby securing the drainage tube body 1. The fixing block 6, connected to the side of the movable fixing device 4, can be connected to the external structure through the fixing groove 5. When it is necessary to fix the connection at different positions, by pressing the pressing block 7, the pressing side plate 15 connected to the side wall of the pressing block 7 will move downward by the spring 16. At this time, the pressing block 7 squeezes the inner moving block 18 to move backward. At this time, the locking block 17 disengages from the slot 2, which can better change the position of the movable fixing device 4 to achieve the change of the fixing position. Then, the pressing block 7 is released, and the pressing block 7 returns to its original position according to the action of the spring 16. Then, the inner moving block 18 will lock the locking block 17 into the slot 2 according to the action of the spring 219 to achieve fixation. It is convenient, quick and easy, and has a wide range of applications.
[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.
Claims
1. A drainage catheter indwelling fixation device, comprising a drainage catheter body (1), characterized in that: The outer wall of the drainage catheter body (1) is provided with a movable fixator (4), the inner wall of the movable fixator (4) is slidably connected with a pressing block (7), the side wall of the pressing block (7) is fixedly connected with a pressing side plate (15), the bottom of the pressing side plate (15) is fixedly connected with a spring (16), the inside of the movable fixator (4) is fixedly connected with a spring (19), one end of the spring (19) is fixedly connected with an inner moving block (18), the side wall of the inner moving block (18) is fixedly connected with a locking block (17), the outer wall of the drainage catheter body (1) is provided with a locking groove (2), the side wall of the movable fixator (4) is fixedly connected with a fixing component, the fixing component is used for the connection and fixation of the drainage catheter body (1) and the external fixing structure.
2. The drainage catheter indwelling fixation device according to claim 1, characterized in that: The first spring (16) is fixedly connected to the inner wall of the movable fixing device (4). The first spring (16) and the pressing side plate (15) are symmetrically arranged on both sides of the pressing block (7). The second spring (19) is fixed on both sides of the inner wall of the movable fixing device (4) and symmetrically arranged.
3. The drainage catheter indwelling fixation device according to claim 1, characterized in that: The fixing component includes a sliding connecting rod (20), which is fixedly connected to the side wall of the inner moving block (18). The other end of the sliding connecting rod (20) is fixedly connected to a connecting fixing block (6). The side wall of the connecting fixing block (6) is provided with a connecting fixing groove (5). The moving fixing device (4) is symmetrically arranged on the outer wall of the drainage tube body (1). A clamping groove (13) is provided between the moving fixing devices (4).
4. The drainage catheter indwelling fixation device according to claim 1, characterized in that: The side wall of the movable fixing device (4) is provided with a fixing hole (14), the inner wall of the fixing hole (14) is fixedly connected with a movable outer tube (12), the inner wall of the other fixing hole (14) is fixedly connected with a movable inner tube (21), and a tension spring (22) is fixedly connected between the two sets of movable fixing devices (4).
5. A drainage catheter indwelling fixation device according to claim 4, characterized in that: The movable outer tube (12) is disposed on the outer wall of the movable inner tube (21) and the movable outer tube (12) and the movable inner tube (21) are slidably connected. The tension spring (22) is disposed in the middle of the movable outer tube (12) and the movable inner tube (21).
6. A drainage catheter indwelling fixation device according to claim 5, characterized in that: The movable outer tube (12) and the movable inner tube (21) are symmetrically arranged at both ends of the movable fixator (4), and the bottom of the drainage catheter body (1) is fixedly connected with a catheter needle (3).
7. The drainage catheter indwelling fixation device according to claim 1, characterized in that: The top of the drainage catheter body (1) is fixedly connected to a transition tube (8), the top of the transition tube (8) is fixedly connected to a connecting tube (10), and the top of the connecting tube (10) is fixedly connected to an external flexible tube (11).
8. A drainage catheter indwelling fixation device according to claim 7, characterized in that: A pressure tube (9) is fixedly connected to the top of the transition tube (8), and the pressure tube (9) is symmetrically arranged on both sides of the drainage catheter body (1).