Fixing device for medical catheter

Abstract

The utility model discloses a fixing device for a medical catheter, which comprises a bottom plate, opposite surfaces of the bottom plate are connected with fixing plates, two side walls of the fixing plates along the length direction of the bottom plate are respectively provided with a first clamping component, and the bottom plate is provided with a movable clamping block driven by a driving device in a reciprocating manner. The movable clamping block is located on the side, away from the fixing plate, of the first clamping component, the side wall of the movable clamping block is provided with a second clamping component matched with the first clamping component, and a clamping area with the adjustable distance is formed between the first clamping component and the second clamping component. The special-shaped guide pipe clamp can be better used for clamping special-shaped guide pipes, can better adapt to clamping of guide pipes with different diameters, and is adjustable in tightness, high in positioning precision, simple and easy in structure and convenient and efficient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to a fixing device for a medical catheter. Background Art

[0002] When medical catheters are being assembled in batches, the catheters need to be clamped and fixed before assembly. Before assembly, the medical catheters must be flatly stacked on a fixed workstation and then moved to various self-assembly line workstations for assembly.

[0003] At present, we conventionally clamp the catheter in a U-shaped tube carrier, which is only suitable for catheters of the right size. When the catheter size is too small, it cannot play a role in stable clamping. When the catheter size is too large or the catheter is an irregular shape, the catheter will be squeezed and deformed, thereby achieving its fixation. The squeezing and deformation process will cause cracks on the catheter surface and interface, and the edge damage during the squeezing process can easily cause defective products. Therefore, it is urgent to solve the technical problems that the fixing device cannot be adjusted, cannot adapt to the specifications and sizes of catheters with non-uniform sizes, and cannot adjust the clamping force. Summary of the Invention

[0004] The purpose of the present invention is to address the deficiencies of the above-mentioned prior art and provide a fixing device for a medical catheter. The present application solves the technical problems that the catheter is easily damaged during the fixing and clamping process, the fixing device cannot be adjusted, and cannot be adaptively adjusted as the shape and specifications of the catheter change, and the adjustment is difficult during the clamping and fixing process.

[0005] A fixing device for a medical catheter includes a base plate, with fixing plates connected to opposite surfaces of the base plate. The fixing plate has first clamping components on both sidewalls along the length of the base plate. The base plate is provided with a movable clamping block driven back and forth by a drive device, the movable clamping block being located on a side of the first clamping component away from the fixing plate. The sidewalls of the movable clamping block are provided with second clamping components that cooperate with the first clamping components, forming a clamping area with an adjustable spacing between the first and second clamping components.

[0006] In the present application, the spatial size of the clamping area can be adjusted by adjusting the position of the first clamping component or the second clamping component separately, which is suitable for fixing catheters of various sizes and shapes. At the same time, it can effectively avoid the clamping force being too small due to the clamping area being too large during the clamping and fixing process, causing the catheter to fall off, or the clamping force being too large due to the clamping area being too small, causing the catheter to be damaged. It has better adaptability to the shape and size of the catheter and is more practical. The movable clamping block can be driven by a driving device to adjust its position, and can realize the change of the position of the clamping area by moving it separately or moving it simultaneously. It is flexible and convenient to adjust, and can be used with base plates of various shapes and specifications.

[0007] Furthermore, the first clamping component and the second clamping component are arranged at the same height.

[0008] In the present application, the first clamping component and the second clamping component are highly consistent, which can effectively ensure the same clamping angle and clamping force, avoid uneven clamping force causing uneven force on the catheter and causing damage to it, and ensure the clamping effect and stability.

[0009] Furthermore, the bottoms of the first clamping component and the second clamping component cooperate to form a clamping groove.

[0010] Furthermore, the clamping groove is in a "U" shape, and the interior of the clamping groove gradually increases from the bottom of the groove to the groove mouth, and the inner side wall of the groove is composed of a first inclined portion and a second inclined portion connected from bottom to top.

[0011] In the present application, the first inclined portion and the second inclined portion have different inclination angles, which can expand the clamping specifications and clamping shapes while effectively clamping, and effectively expand the scope of application.

[0012] Furthermore, the surfaces of the first inclined portion and the second inclined portion are both arc-shaped.

[0013] In the present application, the arc-shaped structure can provide a higher level of protection for the surface of the catheter, thereby preventing damage to the catheter during the fixing process and reducing losses during the assembly process.

[0014] Furthermore, the driving device includes multiple groups of movable connecting parts that are opposite to each other, and an elastic telescopic component is provided between each group of movable connecting parts. Screws are provided at both ends of the elastic telescopic components. The movable connecting parts are installed above the base plate through sliding assemblies, and threaded through holes are provided on the movable connecting parts for screwing the screws.

[0015] In this application, the driving device can drive the movable clamping block to slide, which can realize the function of conveniently adjusting the size of the clamping area space. When facing catheters of different materials, the clamping force needs to be adaptively adjusted. The material of the elastic telescopic component can be a spring, which can better adapt to the slight size changes of the catheter, and can better protect the catheter during the fixing process, avoiding damage to the catheter to the greatest extent.

[0016] Furthermore, the sliding assembly includes a sliding slider, which is slidably connected to a sliding rail arranged on the upper surface of the base plate.

[0017] In this application, the sliding assembly and the sliding rail cooperate with each other, have a simple structure, and have low maintenance and replacement costs, which makes it convenient for staff to judge the travel direction and operation process more intuitively. It is suitable for large-scale production. The movable connecting part is fixed on the sliding assembly, and the movable connecting part is driven by the movement of the sliding assembly to ensure that the spring force can be stably transmitted to the movable clamping block. The force of the spring is limited during the movement, which is not easy to cause deviation, and the structural stability and reliability are greatly improved.

[0018] Furthermore, a plurality of rollers are arranged on the lower surface of the base plate at equal intervals along its length.

[0019] In this application, the roller can move back and forth in the stroke direction to any position to meet production assembly requirements and better adapt to production use.

[0020] Furthermore, the upper surface of the bottom plate is provided with a limiting groove rail for fixing the sliding rail.

[0021] In the present application, the limiting groove rail plays the role of limiting the moving direction, ensuring the stability of the moving process and improving the reliability of the operating structure of the entire equipment.

[0022] Beneficial effects:

[0023] In the present application, one end of the elastic telescopic component is connected to the first connecting member, and the other end of the elastic telescopic component is connected to one end of the screw, and the screw is screwed to the threaded through hole on the movable connecting member. First, the elastic telescopic component itself has a telescopic effect. When encountering catheters with different diameters, it will play an adjustment effect within a certain range, solving the problem that the distance between the first clamping component and the second clamping component is not adjustable, resulting in squeezing and damage when the catheter is fixed. The spring has a special structure of reciprocating motion, which can effectively expand the clamping range and realize adjustable clamping distance, which is convenient for fixing and clamping catheters of different diameters and easy to operate. In addition, the screw is screwed to the threaded through hole, and the telescopic force of the elastic telescopic component can be adjusted in real time according to needs, thereby controlling the clamping force of the movable clamping block and avoiding the first clamping component and the second clamping component from clamping the catheter too tightly. The catheter is damaged, and the telescopic force of each spring can be adjusted separately, which can be better suitable for the use of ordinary or special-shaped catheters. The spring force can be changed without changing the specifications and dimensions of the spring. The adjustment process is convenient, eliminating the complicated steps of changing the force by disassembling and assembling the spring. At the same time, the adjustment of the spring tension is more precise, which can better adapt to the slight size changes of the catheter. During the fixing process, the catheter can be better protected and the catheter is avoided to the greatest extent. The adjustment efficiency is greatly improved, the structure is simple, the operation is more convenient, the structure is flexible, and it is not easy to damage the outer wall of the catheter. It meets the clamping needs of catheters with higher requirements, and at the same time meets the clamping requirements of special-shaped catheters. The clamping force and clamping direction can be accurately positioned, the structure is simple and easy to use, the disassembly and assembly are convenient and efficient, and the equipment operation is stable and reliable.

[0024] The driving device in the present application can drive the movable clamping block to slide in its corresponding installation groove, thereby changing the spatial size of the clamping area. The sliding assembly and the sliding rail cooperate with each other, the structure is simple, the maintenance and replacement costs are low, and it is convenient for staff to more intuitively judge the stroke direction and operation process. It is suitable for large-scale production use. The movable connecting part is fixed on the sliding assembly, and the movable connecting part is driven by the movement of the sliding assembly to ensure that the spring force can be stably transmitted to the movable clamping block. The force of the spring is limited during the movement, and it is not easy to cause deviation. The structural stability and reliability are greatly improved, and the fixing device is driven by the roller to move. The fixing device can move back and forth in the stroke direction to any position, which meets the production assembly requirements and can better adapt to production use.

[0025] In the present application, a clamping area with adjustable clamping space and clamping force is provided, and a first clamping component and a second clamping component are provided in combination. The arc-shaped first clamping component and the second clamping component can better protect the surface of the catheter, avoid damage to the catheter during the fixing process, reduce losses during the assembly process, achieve the effect of not damaging the outer wall of the catheter, avoid squeezing and deformation of catheters with high clamping requirements, can be better used for clamping special-shaped catheters, and can better adapt to the clamping of catheters of different diameters. The tightness is adjustable, the positioning accuracy is high, the structure is simple and easy to use, and the disassembly and assembly are convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional diagram of the fixture;

[0027] Figure 2 is a top perspective view of the fixture;

[0028] Figure 3 is a top plan view of the fixture;

[0029] Figure 4 is a schematic side view of the fixing device;

[0030] Figure 5 It is the end face layout diagram of the fixture;

[0031] Figure 6 This is an end view layout diagram of the fixture.

[0032] In the figure, 1. base plate; 2. fixed plate; 3. first clamping component; 4. movable clamping block; 5. second clamping component; 6. clamping area; 7. movable connecting part; 8. screw; 9. elastic telescopic component; 10. roller; 11. sliding block; 12. limiting groove rail; 13. sliding rail. DETAILED DESCRIPTION

[0033] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0034] Example 1

[0035] like Figures 1 to 5 As shown in a specific embodiment of the present invention, a fixing device for a medical catheter includes a base plate 1, a fixing plate 2, a first clamping component 3, a movable clamping block 4, a second clamping component 5, a clamping area 6, a movable connecting member 7, a screw 8, an elastic telescopic component 9, a roller 10, a sliding block 11, a limiting groove rail 12, and a sliding rail 13.

[0036] The fixing plates 2 are respectively mounted on both sides of the square base plate 1. The fixing plates 2 and the base plate 1 are detachably connected by bolts, which makes it easy to repair and replace them after damage. The side walls of the base plate 1 are provided with a plurality of fixing bolt holes for fixing the fixing plates 2. The fixing bolt holes are screwed together with the bolts to achieve a fixing effect. The opposite surfaces of the base plate 1 are connected with the fixing plates 2. The side walls of the fixing plates 2 along the length direction of the base plate 1 are provided with first clamping parts 3. The base plate 1 is provided with a movable clamping block 4 driven back and forth by a driving device. The movable clamping block 4 is located on the side of the first clamping part 3 away from the fixed plate 2. The side walls of the movable clamping block 4 are provided with second clamping parts 5 that cooperate with the first clamping part 3. A clamping area 6 with adjustable spacing is formed between the first clamping part 3 and the second clamping part 5. The space size of the clamping area 6 can be adjusted by changing the position of the fixing plate 2 or the movable clamping block 4, so as to realize the fixed clamping of catheters of different shapes and specifications. The clamping range is wide and it can adapt to many catheter specifications while ensuring the clamping effect and effectively avoiding damage to the catheter.

[0037] By adjusting the position of the first clamping component 3 or the second clamping component 5 separately, the spatial size of the clamping area 6 can be adjusted, which is suitable for fixing catheters of various sizes and shapes. At the same time, it can effectively avoid the clamping force being too small due to the clamping area 6 being too large during the clamping and fixing process, causing the catheter to fall off, or the clamping force being too large due to the clamping area 6 being too small, causing the catheter to be damaged. It has better adaptability to the shape and size of the catheter and is more practical. The movable clamping block 4 can be driven by a driving device to adjust its position, and can realize the change of the position of the clamping area 6 by moving it separately or moving the clamping area 6 at the same time. The adjustment is flexible and convenient, and it can be used with base plates 1 of various shapes and specifications.

[0038] The first clamping part 3 and the second clamping part 5 are arranged at the same height. The same height between the first clamping part 3 and the second clamping part 5 can effectively ensure the same clamping fixed angle and clamping force, avoid uneven clamping force causing uneven force on the catheter and causing damage to it, and ensure the clamping effect and stability.

[0039] The bottoms of the first clamping part 3 and the second clamping part 5 cooperate to form a clamping groove, which is in the shape of a "U". The interior of the clamping groove gradually increases from the bottom of the groove to at least part of the groove mouth. The inner side walls of the groove are composed of a first inclined portion and a second inclined portion connected from bottom to top. The inclination angles of the first inclined portion and the second inclined portion are different, which can expand the clamping specifications and clamping shapes under effective clamping, and effectively expand the scope of application.

[0040] The inclination angle of the first inclined portion is smaller than the inclination angle of the second inclined portion, and the surfaces of the first inclined portion and the second inclined portion are both arc-shaped, which can provide a higher protection for the surface of the catheter, prevent the catheter from being damaged during the fixing process, reduce the loss during the assembly process, and improve the assembly efficiency and the yield rate during the assembly process. The "U" shape here is roughly a U shape, where the U shape includes a U shape, a concave shape, a ┕┛ shape, and a V shape;

[0041] The sliding assembly consists of a sliding slider 11 and a sliding rail 13. The sliding slider 11 is slidably connected to the sliding rail 13 arranged on the upper surface of the base plate 1. It is easy to install, disassemble and replace, and has low cost of use. It is convenient for staff to judge the stroke direction and operation process more intuitively. It is suitable for large-scale production. The movable connecting part 7 is fixed on the sliding assembly. The movable connecting part 7 is driven by the movement of the sliding assembly to ensure that the spring force can be stably transmitted to the movable clamping block 4. The force of the spring is limited during the movement, and it is not easy to cause deviation. The structural stability and reliability are greatly improved. At the same time, the stability of the clamping force is guaranteed. The sliding rail 13 in the sliding assembly includes a variety of structures, such as dovetail grooves, slide grooves, etc.

[0042] The surfaces of the first inclined portion and the second inclined portion are both arc-shaped. The arc-shaped structure can provide a higher degree of protection for the surface of the catheter, thereby preventing damage to the catheter during the fixing process and reducing losses during the assembly process.

[0043] The driving device includes multiple groups of movable connecting parts 7 facing each other, and an elastic telescopic component 9 is provided between each group of movable connecting parts 7. Screws 8 are provided at both ends of the elastic telescopic component 9. The movable connecting parts 7 are installed above the base plate 1 through sliding components. Threaded through holes for screwing the screws 8 are opened on the movable connecting parts 7. The driving device can drive the movable clamping block 4 to slide, and can realize the function of conveniently adjusting the space size of the clamping area 6. When facing catheters of different materials, the clamping force needs to be adaptively adjusted. The material of the elastic telescopic component 9 can be a spring, which can better adapt to the slight size changes of the catheter, and can better protect the catheter during the fixing process, thereby avoiding damage to the catheter to the greatest extent.

[0044] The sliding assembly includes a sliding slider 11, which is slidably connected to a sliding rail 13 arranged on the upper surface of the base plate 1. The sliding assembly and the sliding rail 13 cooperate with each other, have a simple structure, and have low maintenance and replacement costs. It is convenient for staff to more intuitively judge the travel direction and operation process, and is suitable for large-scale production. The movable connecting part 7 is fixed on the sliding assembly, and the movable connecting part 7 is driven by the movement of the sliding assembly to ensure that the spring force can be stably transmitted to the movable clamping block 4. The force of the spring is limited during the movement, and it is not easy to cause deviation. The structural stability and reliability are greatly improved. At the same time, the stability of the clamping force is guaranteed. The sliding rail 13 in the sliding assembly includes a variety of structures, such as dovetail grooves and slide grooves.

[0045] The lower surface of the base plate 1 is equidistantly arranged with multiple rollers 10 along its length. The travel directions of the multiple rollers 10 are consistent. The rollers 10 can move back and forth in the travel direction to any position to meet production assembly requirements and better adapt to production use.

[0046] The upper surface of the base plate 1 is provided with a limiting groove rail 12 for fixing the sliding rail 13. The limiting groove rail 12 plays a role in limiting the moving direction, ensuring the stability of the moving process and improving the reliability of the operating structure of the entire equipment.

[0047] Example 2

[0048] The elastic telescopic component 9 is provided with a first connecting piece, an elastic component is provided between the first connecting piece and the movable connecting piece 7, one end of the elastic component is connected to the first connecting piece, and the other end of the elastic component is connected to one end of the screw rod 8. The movable connecting piece 7 is provided with a threaded through hole for screwing the screw rod 8. By controlling the screw connection length between the screw rod 8 and the threaded through hole, the rebound force of the elastic telescopic component 9 can be controlled, thereby realizing the adjustment of the clamping force. The elastic telescopic component 9 can be set as a spring, which can not only realize the reciprocating motion effect of the movable clamping block 4, but also realize the function of adaptively adjusting the space size of the clamping area 6 according to the size and specification of the catheter, effectively avoiding the problem that the clamping force is too small due to the clamping area 6 being too large during the clamping and fixing process, causing the catheter to fall off, or the clamping force is too large due to the clamping area 6 being too small, causing the catheter to be damaged. It has better adaptability to the shape and size of the catheter and is more practical.

[0049] The specific operation process in use is as follows:

[0050] First, the clamping force is preliminarily adjusted according to the size and specifications of the catheter. The catheter is placed in the groove formed by the first clamping part 3 and the second clamping part 5. The positions of the first clamping part 3 and the second clamping part 5 are changed by adjusting the positions of the fixed plate 2 and the movable clamping block 4, thereby controlling the size of the clamping space in the groove, which can better adapt to the fixation of catheters of different specifications.

[0051] During the adjustment process, when it is necessary to reduce the clamping force, the screw connection length between the screw rod 8 and the movable connecting member 7 can be reduced, thereby reducing the size of the spring pullback force and reducing the size of the closing force when the first clamping member 3 and the second clamping member 5 are closed, thereby achieving the purpose of reducing the clamping force. When it is necessary to increase the clamping force, the screw connection length between the screw rod 8 and the movable connecting member 7 can be increased, thereby increasing the size of the spring pullback force and increasing the size of the closing force when the first clamping member 3 and the second clamping member 5 are closed, thereby achieving the purpose of increasing the clamping force, better protecting the catheter and avoiding damage caused by excessive pressure. The size of the spring tension can be accurately controlled according to the size of the catheter. Under the condition of clamping the catheter, Improve the catheter fixing effect, wherein the sliding rail 13 controls the stroke length, direction, and height of the entire movable connection part 7, controls the direction and stability of the spring force, and improves the stability and reliability of the entire structure. The multiple rollers 10 on the lower surface of the base plate 1 can ensure that the stroke direction of the entire fixing device is consistent. At the same time, the fixing device can be moved to any workstation in the working area, solving the problems of difficult equipment transportation, heavy workload, and complexity in the production process. The entire fixing device adjusts the force through the spring tension and the clamping adjustment screw 8 to achieve the effect of not damaging the tube and clamping. The spring cooperates with the screw 8 to achieve precise positioning, so that catheters of different diameters can be clamped. It has a simple structure, is easy to disassemble and assemble, and is convenient and efficient to use.

[0052] Example 3

[0053] The second driving mode of the movable clamping block 4 is hydraulic drive. The other structures in the second embodiment are basically the same as those in the first embodiment. The hydraulic drive includes a hydraulic drive device and a hydraulic rod. The hydraulic drive device is connected to the driving end of the hydraulic rod to realize the telescopic movement of the hydraulic rod. The movable end of the hydraulic rod is connected to the linkage rod. The movable clamping block 4 is connected to the linkage rod through a connecting rod respectively. The linkage rod moves with the hydraulic rod. The movement of the linkage rod drives the connecting rod to move at the same time, and finally drives the movable clamping block 4 to move, thereby achieving the effect of adjusting the distance between the first clamping component 3 and the second clamping component 5. During the adjustment process, when it is necessary to reduce the clamping force, the hydraulic device can be started to control the hydraulic rod. When the clamping force needs to be increased, the hydraulic device can be started to control the shortening of the hydraulic rod so that the first clamping part 3 is close to the second clamping part 5, thereby achieving the purpose of increasing the clamping force. The clamping force can be adjusted in real time according to the diameter of the catheter, which can provide better protection during the catheter fixation process and avoid damage caused by excessive pressure. Under the condition of clamping the catheter, the catheter fixing effect is improved to achieve the effect of not damaging the catheter and clamping. Precise positioning is achieved through hydraulic drive, so that catheters of different diameters can be clamped. The structure is simple, easy to disassemble and assemble, and convenient and efficient to use.

[0054] Example 4

[0055] The third driving mode of the movable clamping block 4 is spring connection and fixation. The other structures in Example 2 are basically the same as those in Example 1. Each movable clamping block 4 is connected to the side wall of the fixed plate 2 through a spring. Since the spring itself has a telescopic force, it can drive the movable clamping block 4 to perform telescopic movement, thereby achieving the effect of adjusting the distance between the first clamping part 3 and the second clamping part 5. During the adjustment process, when it is necessary to reduce the clamping force, the spring with smaller specifications and elasticity can be replaced to achieve the purpose of reducing the clamping force. When it is necessary to increase the clamping force, the spring with larger specifications and elasticity can be replaced to achieve the purpose of increasing the clamping force. The clamping force can be adjusted in real time according to the diameter of the catheter, which can provide better protection during the catheter fixing process and avoid damage caused by excessive pressure. It improves the catheter fixing effect under the condition of clamping the catheter, achieves the effect of not damaging the tube, and clamps, so that catheters of different diameters can be clamped. It has a simple structure, is easy to disassemble and assemble, and is convenient and efficient to use.

[0056] Example 5

[0057] Among them, the screws 8 at both ends of the elastic telescopic component 9 can be replaced by a mounting plate, which has a long waist hole. The mounting plate is connected to the movable connecting part 7 by bolts passing through the long waist hole, so as to achieve the function of connecting and adjusting the telescopic force of the elastic telescopic component 9.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A fixing device for a medical catheter, comprising a base plate (1), wherein opposite surfaces of the base plate (1) are connected to fixing plates (2), characterized in that: The fixed plate (2) has first clamping parts (3) on both side walls along the length direction of the base plate (1), and a movable clamping block (4) driven back and forth by a driving device is provided on the base plate (1). The movable clamping block (4) is located on the side of the first clamping part (3) away from the fixed plate (2). The side walls of the movable clamping block (4) have second clamping parts (5) that match the first clamping part (3), and a clamping area (6) with an adjustable spacing is formed between the first clamping part (3) and the second clamping part (5).

2. A fixing device for a medical catheter according to claim 1, characterized in that: The first clamping component (3) and the second clamping component (5) are arranged at the same height.

3. A fixing device for a medical catheter according to claim 1, characterized in that: The bottoms of the first clamping component (3) and the second clamping component (5) cooperate to form a clamping groove.

4. A fixing device for a medical catheter according to claim 3, characterized in that: The clamping groove is in a "U" shape, and the interior of the clamping groove gradually increases from the bottom of the groove to the groove opening, and the inner side wall of the groove is composed of a first inclined portion and a second inclined portion connected from bottom to top.

5. A fixing device for a medical catheter according to claim 4, characterized in that: Surfaces of the first inclined portion and the second inclined portion are both arc-shaped.

6. The fixing device for a medical catheter according to claim 1, characterized in that: The driving device comprises a plurality of groups of movable connecting members (7) opposed to each other, an elastic telescopic member (9) is provided between each group of the movable connecting members (7), screw rods (8) are provided at both ends of the elastic telescopic member (9), the movable connecting members (7) are installed above the base plate (1) through sliding assemblies, and threaded through holes for screwing the screw rods (8) are provided on the movable connecting members (7).

7. A fixing device for a medical catheter according to claim 6, characterized in that: The sliding assembly comprises a sliding block (11), and the sliding block (11) is in sliding connection with a sliding rail (13) arranged on the upper surface of the base plate (1).

8. The fixing device for a medical catheter according to claim 1, characterized in that: The lower surface of the bottom plate (1) is provided with a plurality of rollers (10) arranged at equal intervals along its length.

9. The fixing device for a medical catheter according to claim 6, characterized in that: The upper surface of the base plate (1) is provided with a limiting groove rail (12) for fixing the sliding rail (13).

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