Fixator for guide wire of internal jugular vein indwelling catheter

Abstract

The utility model provides an internal jugular vein indwelling catheter guide wire fixator, belongs to the field of medical instruments, and aims to solve the problem that wearing is inconvenient to adjust according to the size of the neck of a patient, the internal jugular vein indwelling catheter guide wire fixator comprises a telescopic band and a clamping groove, the clamping groove is formed in the telescopic band, and a second clamping plate is rotationally connected to a connecting plate. The telescopic belt is arranged; when the wearing tightness of the telescopic belt is adjusted, a pull rod on a mounting frame can be pulled to drive a limiting plate to move, a clamping rod can be taken out of a clamping groove in the telescopic belt and retracted into the mounting frame when the limiting plate moves, and a spring can be extruded when the limiting plate moves; the telescopic belt can be pulled to move on the mounting frame and adjusted according to the size of the neck of a patient, after adjustment is completed, the pull rod is loosened, the limiting plate and the clamping rod are driven to reset under pushing of the spring, the clamping rod is clamped in the clamping groove in the telescopic belt for limiting, and the wearing and using comfort can be improved.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and more specifically, to a guide wire fixation device for internal jugular vein catheterization. Background Technology

[0002] Newly diagnosed uremia patients or patients with acute kidney injury require the placement of a temporary deep vein catheter to establish vascular access before undergoing blood purification treatment. When doctors puncture the internal jugular vein, they pay special attention to the depth of the guidewire insertion. If it is too deep, it may enter the right heart and cause arrhythmia. However, when using a dilator to dilate the vein, it is easy to insert the guidewire, which may induce arrhythmia. Therefore, a guidewire fixator is needed for precise fixation, which can establish a safe, rapid, and reliable vascular access in a short time.

[0003] However, most current internal jugular vein catheterization guidewire fixation devices have the following problems:

[0004] For example, a jugular vein catheterization fixation device with publication number CN211327681U, although it can limit the use of the venous catheter guidewire through a head-mounted fixation frame, is worn on the head. When lying in bed, this affects the patient's comfort, and the tilting of the head can easily cause the head-mounted fixation frame to fall off or shift, affecting the stability of the venous catheter guidewire and making it inconvenient to adjust the fit according to the size of the patient's neck. Similarly, an internal jugular vein catheterization fixation device with publication number CN213609267U, although it can limit the use of the venous catheter guidewire through a receiving sleeve, has a certain degree of extensibility. During use, the receiving sleeve cannot firmly limit the venous catheter guidewire, and the loose limit can easily affect the stability of the venous catheter guidewire. Due to this, the venous catheter guidewire is prone to falling off, making it inconvenient to conveniently limit the use of the venous catheter guidewire.

[0005] Therefore, we made improvements and proposed an internal jugular vein catheterization guidewire fixation device. Summary of the Invention

[0006] The purpose of this invention is to address the current problems of inconvenience in adjusting the fit according to the size of the patient's neck, and inconvenience in conveniently limiting the use of the venous catheter guidewire.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A guidewire fixation device for internal jugular vein catheterization is used to improve the above-mentioned problems.

[0009] This application specifically includes a telescopic belt and a slot. The telescopic belt has a slot and a mounting frame. A spring is fixedly connected inside the mounting frame. A limit plate is fixedly connected to the other end of the spring. A locking rod is fixedly connected to the limit plate. A pull rod is fixedly connected to the limit plate. A connecting frame is provided on the telescopic belt. A protective pad is fixedly connected to the connecting frame. A first clamping plate is fixedly connected to the connecting frame. A rotating component is rotatably connected to the first clamping plate. A bidirectional threaded rod is fixedly connected to the rotating component. The bidirectional threaded rod is rotatably connected inside the first clamping plate. A transmission belt is provided on the bidirectional threaded rod. A moving block is threadedly connected to the bidirectional threaded rod. A connecting plate is rotatably connected to the moving block. A second clamping plate is rotatably connected to the connecting plate.

[0010] As a preferred technical solution of this application, the telescopic belt is provided with slots at equal angles, the side end face of the limiting plate is in contact with the inner side of the mounting frame, the clamping rod is fixedly connected to the center part of one side of the limiting plate, and the length of the clamping rod is less than the length of the internal space of the mounting frame.

[0011] As a preferred technical solution of this application, the end cross-section of the pull rod is "T" shaped, the cross-section of one side of the connecting frame is arc-shaped, the inner side of the connecting frame is in contact with the outer side of the telescopic belt, and one end of the pull rod is fixedly connected to the center of one side of the limiting plate.

[0012] As a preferred technical solution of this application, the rotating component is fixedly connected to the center of one end of the bidirectional threaded rod, the moving blocks are symmetrically distributed on the left and right sides of the bidirectional threaded rod, and the moving blocks correspond one-to-one with the connecting plates.

[0013] As a preferred technical solution of this application, grooves are provided on the first clamping plate and the second clamping plate, and anti-slip pads are fixedly connected to the first clamping plate and the second clamping plate, and the side end face of the moving block is in contact with the inner side face of the first clamping plate.

[0014] As a preferred technical solution of this application, the grooves opened on the first clamping plate and the second clamping plate have an arc-shaped cross-section, the grooves are opened on the left and right sides of the first clamping plate and the second clamping plate, and the grooves correspond one-to-one with the anti-slip pads.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] It is equipped with a telescopic strap; when adjusting the tightness of the telescopic strap, the pull rod on the mounting frame can be pulled to move the limiting plate. When the limiting plate moves, it can remove the locking rod from the slot on the telescopic strap and retract it into the mounting frame. The limiting plate can also compress the spring when it moves. When the telescopic strap is not obstructed by the locking rod, it can be pulled to move on the mounting frame. Adjustment can be made according to the size of the patient's neck. After adjustment, the pull rod is released, and the spring pushes the limiting plate and locking rod to reset. The locking rod engages with the slot on the telescopic strap to limit the tightness, which can improve the comfort of wearing and using it.

[0017] A first clamp is provided. When limiting the intravenous catheter guidewire, the guidewire can be passed through the first and second clamps. Then, rotating the rotating component drives the bidirectional threaded rod to rotate. When the bidirectional threaded rod rotates, it can drive both sides of the bidirectional threaded rod to rotate simultaneously through the transmission belt. When the bidirectional threaded rod rotates, it can drive the moving block to move. When both sides of the moving block move outward at the same time, the moving block can pull the second clamp to move through the connecting plate. With the cooperation of the grooves on the first and second clamps and the anti-slip pads, the guidewire can be clamped and limited according to its size, improving the stability of use and preventing loosening and displacement. Attached Figure Description

[0018] Figure 1 A three-dimensional structural diagram of the internal jugular vein catheterization guidewire fixation device provided in this application;

[0019] Figure 2 A top view of the telescopic strap structure of the internal jugular vein catheterization guidewire fixation device provided in this application;

[0020] Figure 3 A side view of the mounting frame for the internal jugular vein catheter guidewire fixation device provided in this application;

[0021] Figure 4 The internal jugular vein catheterization guidewire fixation device provided in this application Figure 2 Enlarged structural diagram at point A in the middle;

[0022] Figure 5 A side view of the bidirectional threaded rod structure of the internal jugular vein catheterization guidewire fixation device provided in this application;

[0023] Figure 6 A side view of the transmission belt structure of the internal jugular vein catheter guidewire fixation device provided in this application.

[0024] The diagram shows: 1. Telescopic belt; 2. Slot; 3. Mounting bracket; 4. Spring; 5. Limiting plate; 6. Clamping rod; 7. Pull rod; 8. Connecting bracket; 9. Protective pad; 10. First clamping plate; 11. Rotating component; 12. Two-way threaded rod; 13. Transmission belt; 14. Moving block; 15. Connecting plate; 16. Second clamping plate; 17. Groove; 18. Anti-slip pad. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0026] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0027] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms 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, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] Example 1: As Figure 1-6As shown, this embodiment proposes an internal jugular vein catheter guidewire fixation device, including a telescopic belt 1 and a slot 2. The telescopic belt 1 has a slot 2 and a mounting frame 3. A spring 4 is fixedly connected inside the mounting frame 3. A limit plate 5 is fixedly connected to the other end of the spring 4. A locking rod 6 is fixedly connected to the limit plate 5. A pull rod 7 is fixedly connected to the limit plate 5. A connecting frame 8 is provided on the telescopic belt 1. A protective pad 9 is fixedly connected to the connecting frame 8. A first clamping plate 10 is fixedly connected to the connecting frame 8. A rotating component 11 is rotatably connected to the first clamping plate 10. A bidirectional threaded rod 12 is fixedly connected to the rotating component 11. The bidirectional threaded rod 12 is rotatably connected inside the first clamping plate 10. A transmission belt 13 is provided on the bidirectional threaded rod 12. A moving block 14 is threadedly connected to the bidirectional threaded rod 12. A connecting plate 15 is rotatably connected to the moving block 14. A second clamping plate 16 is rotatably connected to the connecting plate 15.

[0031] Example 2: The solution in Example 1 will be further described below with reference to its specific working method. See the description below for details:

[0032] like Figure 3 As shown, in a preferred embodiment, based on the above method, the telescopic belt 1 is further provided with slots 2 at equal angles, the side end face of the limiting plate 5 is in contact with the inner side of the mounting frame 3, and the locking rod 6 is fixedly connected to the center part of one side of the limiting plate 5. The length of the locking rod 6 is less than the length of the internal space of the mounting frame 3, which can ensure that when the limiting plate 5 is pulled to move, the locking rod 6 can be smoothly retracted into the mounting frame 3 for locking.

[0033] like Figure 3 As shown, in a preferred embodiment, based on the above method, the end cross-section of the pull rod 7 is T-shaped, the cross-section of one side of the connecting frame 8 is arc-shaped, the inner side of the connecting frame 8 is in contact with the outer side of the telescopic belt 1, and one end of the pull rod 7 is fixedly connected to the center of one side of the limiting plate 5, which can ensure that when the pull rod 7 is pulled, the limiting plate 5 can be moved smoothly.

[0034] like Figure 5 As shown, in a preferred embodiment, based on the above method, the rotating member 11 is further fixedly connected to the center of one end of the bidirectional threaded rod 12, and the moving blocks 14 are symmetrically distributed on the left and right sides of the bidirectional threaded rod 12. The moving blocks 14 correspond one-to-one with the connecting plates 15, which can ensure that the second clamping plate 16 can be driven to move smoothly under the cooperation of the moving blocks 14 on both sides and the connecting plates 15.

[0035] like Figure 4As shown, in a preferred embodiment, based on the above method, the first clamping plate 10 and the second clamping plate 16 are further provided with grooves 17, and anti-slip pads 18 are fixedly connected to the first clamping plate 10 and the second clamping plate 16. The side end face of the moving block 14 is in contact with the inner side of the first clamping plate 10, which can ensure that the moving block 14 can move smoothly with the support of the inner side of the first clamping plate 10 when it moves.

[0036] like Figure 4 As shown, in a preferred embodiment, based on the above method, the grooves 17 opened on the first clamping plate 10 and the second clamping plate 16 have an arc-shaped cross-section. The grooves 17 are opened on the left and right sides of the first clamping plate 10 and the second clamping plate 16. The grooves 17 correspond one-to-one with the anti-slip pads 18, which can ensure that one or two venous catheter guide wires can be fixed and used when the grooves 17 and the anti-slip pads 18 are in cooperation.

[0037] Specifically, when using this internal jugular vein catheterization guidewire fixator: Combined with... Figure 1-6 When fixing the intravenous catheter guidewire used on the patient, the telescopic strap 1 can be placed around the patient's neck. When adjusting the tightness of the telescopic strap 1, the pull rod 7 on the mounting frame 3 can be pulled to move the limiting plate 5. When the limiting plate 5 moves, it can remove the locking rod 6 from the slot 2 on the telescopic strap 1 and return it to the mounting frame 3. The limiting plate 5 can also compress the spring 4 when it moves. When the telescopic strap 1 is not obstructed by the locking rod 6, it can be pulled to move on the mounting frame 3. Adjustment can be made according to the size of the patient's neck. After adjustment, the pull rod 7 is released, and the limiting plate 5 and locking rod 6 are reset under the push of the spring 4. The locking rod 6 is locked in the slot 2 on the telescopic strap 1 for limitation, which can improve the comfort of wearing and using.

[0038] The intravenous catheter guidewire can then be passed through the first clamp 10 and the second clamp 16. The rotating component 11 is then rotated to drive the bidirectional threaded rod 12. When the bidirectional threaded rod 12 rotates, it can drive both sides of the bidirectional threaded rod 12 to rotate simultaneously through the transmission belt 13. When the bidirectional threaded rod 12 rotates, it can drive the moving block 14 to move. When both sides of the moving block 14 move outwards simultaneously, the moving block 14 can pull the second clamp 16 to move through the connecting plate 15. With the cooperation of the groove 17 on the first clamp 10 and the anti-slip pad 18, the intravenous catheter guidewire can be clamped and limited according to its size, improving the firmness of use and preventing loosening and displacement. The sliding of the connecting frame 8 on the telescopic belt 1 allows for detailed adjustment of the usage position according to the usage situation. The protective pad 9 set on the connecting frame 8 can improve the comfort when wearing it.

[0039] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, as well as all technical solutions and improvements that do not depart from the spirit and scope of practicality, are covered within the scope of the claims of the present utility model.

Claims

1. A jugular vein catheterization guidewire fixation device, comprising a telescopic strap (1) and a slot (2), characterized in that, The telescopic belt (1) has a slot (2) and a mounting bracket (3). A spring (4) is fixedly connected inside the mounting bracket (3). A limit plate (5) is fixedly connected to the other end of the spring (4). A locking rod (6) is fixedly connected to the limit plate (5). A pull rod (7) is fixedly connected to the limit plate (5). A connecting bracket (8) is provided on the telescopic belt (1). A protective pad (9) is fixedly connected to the connecting bracket (8). A first clamp is fixedly connected to the connecting bracket (8). Plate (10), a rotating part (11) is rotatably connected to the first clamping plate (10), a bidirectional threaded rod (12) is fixedly connected to the rotating part (11), the bidirectional threaded rod (12) is rotatably connected inside the first clamping plate (10), a transmission belt (13) is provided on the bidirectional threaded rod (12), a moving block (14) is threadedly connected to the bidirectional threaded rod (12), a connecting plate (15) is rotatably connected to the moving block (14), and a second clamping plate (16) is rotatably connected to the connecting plate (15).

2. The jugular vein catheterization guidewire fixation device according to claim 1, characterized in that, The telescopic belt (1) has slots (2) at equal angles. The side end face of the limiting plate (5) is in contact with the inner side of the mounting frame (3). The clamping rod (6) is fixedly connected to the center of one side of the limiting plate (5). The length of the clamping rod (6) is less than the length of the internal space of the mounting frame (3).

3. The internal jugular vein catheterization guidewire fixation device according to claim 1, characterized in that, The end cross-section of the pull rod (7) is "T" shaped, the cross-section of one side of the connecting frame (8) is arc shaped, the inner side of the connecting frame (8) is in contact with the outer side of the telescopic belt (1), and one end of the pull rod (7) is fixedly connected to the center of one side of the limiting plate (5).

4. The jugular vein catheterization guidewire fixation device according to claim 1, characterized in that, The rotating component (11) is fixedly connected to the center of one end of the bidirectional threaded rod (12), and the moving blocks (14) are symmetrically distributed on the left and right sides of the bidirectional threaded rod (12). The moving blocks (14) correspond one-to-one with the connecting plates (15).

5. The internal jugular vein catheterization guidewire fixation device according to claim 1, characterized in that, The first clamping plate (10) and the second clamping plate (16) are provided with grooves (17), and anti-slip pads (18) are fixedly connected to the first clamping plate (10) and the second clamping plate (16). The side end face of the moving block (14) is in contact with the inner side face of the first clamping plate (10).

6. The internal jugular vein catheterization guidewire fixation device according to claim 5, characterized in that, The grooves (17) opened on the first clamping plate (10) and the second clamping plate (16) have an arc-shaped cross-section. The grooves (17) are opened on the left and right sides of the first clamping plate (10) and the second clamping plate (16). The grooves (17) correspond one-to-one with the anti-slip pads (18).

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