Coronary artery guide wire fixer

Abstract

The utility model discloses a coronary artery guide wire fixer, which relates to the field of interventional department auxiliary instruments, and comprises a U-shaped box, one side of the inner part of the U-shaped box is rotatably connected with two rollers which are distributed up and down, the bottom wall of the other side of the U-shaped box is fixedly connected with a liquid storage box, a guide rod is arranged in the liquid storage box, and the guide rod is fixedly connected with the lower part of the U-shaped box. And a through hole is formed in the bottom wall of the U-shaped box. The guide wire is inserted into the U-shaped box from the position between the two rollers, enters the liquid storage box and bypasses the lower portion of the guide rod, hydrophobic liquid can be coated on the surface of the guide wire at the moment, when the guide wire is pushed, the elastic structure is pressed downwards to drive the locking block to cancel locking of the rollers on the lower portion, then the rollers are rotated, the guide wire is continuously pushed forwards through extrusion, and the hydrophobic liquid can be coated on the surface of the guide wire. Upward movement of the locking block can be completed through elastic force of the elastic structure by loosening the elastic structure, the locking effect is achieved, unfavorable conditions such as loosening and ramming of the guide wire are prevented, and the guide wire can be accurately controlled conveniently.

Description

Technical Field

[0001] This utility model relates to the field of interventional radiology auxiliary devices, specifically to a coronary guidewire fixator. Background Technology

[0002] Medical guidewires are widely used auxiliary tools in medical procedures. They are usually made of steel wire or plastic fiber and are used to guide blood vessels, catheters or other medical devices to the treatment site. They play an important role in the treatment of many diseases, such as heart stents, which are placed in coronary arteries.

[0003] During the procedure, medical staff need to manually push and pull the guidewire. However, the gloves they wear are easily contaminated with hydrophobic or hydrophilic coatings, which are relatively lubricating. At the same time, the guidewire itself is very thin and slippery. During a long procedure, it is difficult for medical staff to hold and accurately control the guidewire for an extended period of time. The guidewire is prone to loosening, excessive movement, and sudden retraction, which increases the risk factors of the procedure. Utility Model Content

[0004] The purpose of this invention is to provide a coronary guidewire fixator to solve the above problems, as detailed below.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] The coronary guidewire fixator provided by this utility model includes a U-shaped box. Two rollers distributed vertically are rotatably connected to one side of the U-shaped box. A fluid storage box is fixedly connected to the bottom wall of the other side of the U-shaped box. A guide rod is provided inside the fluid storage box. A through hole is opened on the bottom wall of the U-shaped box. A locking block that slides vertically through the through hole and abuts against the lower roller is provided. An elastic structure is provided on the bottom wall of the U-shaped box to drive the locking block to move upward.

[0007] Using the aforementioned coronary guidewire fixation device, the guidewire is inserted into the U-shaped box between two rollers. A hydrophobic liquid is then added to the reservoir until the liquid level covers the guide rod. The guidewire is continuously pushed into the reservoir and passes under the guide rod. At this point, the guidewire surface is coated with the hydrophobic liquid. During guidewire pushing, the downward-pressing elastic structure moves the locking block downwards in the through-hole, releasing the lock on the lower roller. The rollers are then rotated to push the guidewire forward by compression. Releasing the elastic structure allows the locking block to move upwards, achieving a locking effect and preventing the guidewire from loosening or overextending.

[0008] Preferably, a rubber pad is fixedly connected to the circumferential surface of the roller. The outer surface of the rubber pad is serrated, and the two rubber pads abut against each other.

[0009] Preferably, a turntable is provided on one side wall of the U-shaped box to drive the upper roller to rotate, and friction pads that abut against each other are fixedly connected to the opposite surfaces of the turntable and the outer wall of the U-shaped box.

[0010] Preferably, the bottom of the liquid storage box is arc-shaped, and the guide rod is rotatably connected to the lower part of the liquid storage box.

[0011] Preferably, the upper end of the locking block is fixedly connected to a fitting pad that meshes with the serrations on the outer surface of the rubber pad.

[0012] Preferably, the elastic structure includes a connecting plate, and the lower end of the locking block is fixedly connected to one end of the connecting plate. The other end of the connecting plate is fixedly connected to a pressing rod. A circular hole is opened on the bottom wall of the U-shaped box to fit the pressing rod. A circular plate is fixedly connected to the upper end of the pressing rod, and a spring is connected between the circular plate and the bottom wall of the U-shaped box. The spring is fitted on the outside of the pressing rod.

[0013] Preferably, a first through-ring is fixedly connected to the inner wall of the liquid storage box near the end of the U-shaped box, and the first through-ring is provided with bristles. A second through-ring is fixedly connected to the other side wall of the U-shaped box through an extension plate, and both the second through-ring and the first through-ring are located in the middle of the U-shaped box.

[0014] The beneficial effects are:

[0015] By inserting the guidewire between the two rollers into the U-shaped box, it enters the liquid storage box and passes under the guide rod. At this time, the surface of the guidewire can be coated with a hydrophobic liquid. When pushing the guidewire, the locking block is released from locking the lower roller by the downward pressing elastic structure. Then, the roller is rotated to push the guidewire forward by squeezing. By releasing the elastic structure, the locking block can be moved upward by its elasticity to achieve the locking effect, preventing the guidewire from loosening or advancing too far, and facilitating accurate control of the guidewire. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a cross-sectional perspective view of the present invention;

[0019] Figure 3 This is a partially disassembled perspective view of the U-shaped box of this utility model.

[0020] The annotations in the attached figures are explained as follows:

[0021] 1. U-shaped box; 2. Roller; 3. Elastic structure; 3a. Round hole; 3b. Pressing rod; 3c. Connecting plate; 3d. Round plate; 3e. Spring; 4. Liquid storage box; 5. Guide rod; 6. Through hole; 7. Locking block; 8. Fitting pad; 9. Turntable; 10. Friction pad; 11. Rubber pad; 12. Through ring one; 13. Through ring two. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] See Figures 1-3 As shown, this utility model provides a coronary guidewire fixator, including a U-shaped box 1. Two rollers 2, distributed vertically, are rotatably connected to one side of the interior of the U-shaped box 1. A fluid storage box 4 is fixedly connected to the bottom wall of the other side of the U-shaped box 1. A guide rod 5 is provided inside the fluid storage box 4. A through hole 6 is provided on the bottom wall of the U-shaped box 1. A locking block 7, which slides vertically in the through hole 6 and abuts against the lower roller 2, is provided in the through hole 6. An elastic structure 3 is provided on the bottom wall of the U-shaped box 1 to drive the locking block 7 to move upward.

[0024] As an optional implementation, a rubber pad 11 is fixedly connected to the circumferential surface of the roller 2. The outer surface of the rubber pad 11 is annularly serrated, and two rubber pads 11 abut against each other. The upper end of the locking block 7 is fixedly connected to a fitting pad 8 that meshes with the serrations on the outer surface of the rubber pad 11. The annularly serrated design on the surface of the rubber pad 11 can improve the clamping effect on the guide wire surface, so as to smoothly transport or lock the guide wire. The fitting pad 8 can engage with the serrations on the surface of the lower rubber pad 11 after the locking block 7 moves up, thereby improving the locking effect.

[0025] Reference Figure 2 As shown, a turntable 9 is provided on one side wall of the U-shaped box 1 to drive the upper roller 2 to rotate. Friction pads 10 are fixedly connected to each other on the opposite surfaces of the turntable 9 and the outer wall of the U-shaped box 1. The turntable 9 and the upper roller 2 can be rotated together by two protruding rods on the surface of the turntable 9. At the same time, the two friction pads 10 are in contact with each other, providing rotational damping for the rotation of the roller 2, preventing the roller 2 from rotating flexibly, and further enhancing the locking effect of the roller 2 on the guide wire.

[0026] Furthermore, the bottom of the liquid storage box 4 is designed with an arc shape, and the guide rod 5 is rotatably connected to the lower part of the liquid storage box 4. The arc-shaped liquid storage box 4 can bend upwards with the guidance of its arc surface after the guide wire is inserted into it and contacts its bottom surface, making the insertion process of the guide wire under the guide rod 5 smoother. At the same time, the rotatable design of the guide rod 5 can rotate with the guide wire when it moves, avoiding wear.

[0027] Reference Figure 3 As shown, the elastic structure 3 includes a connecting plate 3c, and the lower end of the locking block 7 is fixedly connected to one end of the connecting plate 3c. The other end of the connecting plate 3c is fixedly connected to a pressing rod 3b. A circular hole 3a is opened on the bottom wall of the U-shaped box 1, which is fitted with the pressing rod 3b. A circular plate 3d is fixedly connected to the upper end of the pressing rod 3b, and a spring 3e is connected between the circular plate 3d and the bottom wall of the U-shaped box 1. The spring 3e is fitted on the outside of the pressing rod 3b. By pressing down the circular plate 3d and the pressing rod 3b, the spring 3e can be elastically squeezed. At the same time, under the combined action of the connecting plate 3c, the locking block 7 moves down together, canceling the locking of the fitting pad 8 and the rubber pad 11. At this time, the two rollers 2 can rotate freely to realize the pushing or pulling of the guide wire.

[0028] As an optional implementation, a through-ring 12 is fixedly connected to the inner wall of the liquid storage box 4 near the end of the U-shaped box 1. The through-ring 12 is provided with bristles. A through-ring 23 is fixedly connected to the other side wall of the U-shaped box 1 through an extension plate. Both the through-ring 23 and the through-ring 12 are located in the middle of the U-shaped box 1. By setting the through-ring 12 and the through-ring 23, the conveying process of the guide wire can be restricted to prevent the guide wire from deviating or tilting inside the U-shaped box 1. At the same time, the bristles on the through-ring 12 can brush the excess hydrophobic liquid coated on the surface of the guide wire to achieve a thin coating. Meanwhile, the liquid brushed off can fall into the liquid storage box 4.

[0029] Using the above structure, the guide wire is inserted into the U-shaped box 1 between the two rollers 2, and then a hydrophobic liquid is added into the liquid storage box 4 so that the liquid level covers the guide rod 5. The guide wire is then continuously pushed into the liquid storage box 4 and passes under the guide rod 5. At this time, the surface of the guide wire can be coated with hydrophobic liquid. When pushing the guide wire, the locking block 7 moves down in the through hole 6 through the pressing elastic structure 3, which releases the locking of the lower roller 2. Then, the roller 2 is rotated to push the guide wire forward by squeezing. By releasing the elastic structure 3, the locking block 7 can be moved up by its elasticity to achieve the locking effect and prevent the guide wire from becoming loose or advancing too far.

[0030] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A coronary guidewire fixator, characterized in that: The device includes a U-shaped box (1), with two vertically distributed rollers (2) rotatably connected to one side of the U-shaped box (1). A liquid storage box (4) is fixedly connected to the bottom wall of the other side of the U-shaped box (1). A guide rod (5) is provided inside the liquid storage box (4). A through hole (6) is provided on the bottom wall of the U-shaped box (1). A locking block (7) that slides vertically in the through hole (6) and abuts against the lower roller (2) is provided. A spring structure (3) is provided on the bottom wall of the U-shaped box (1) to drive the locking block (7) to move upward.

2. The coronary guidewire fixator according to claim 1, characterized in that: A rubber pad (11) is fixedly connected to the circumferential surface of the roller (2). The outer surface of the rubber pad (11) is serrated, and the two rubber pads (11) abut against each other.

3. The coronary guidewire fixator according to claim 1, characterized in that: The U-shaped box (1) has a turntable (9) on one side wall for driving the upper roller (2) to rotate. The turntable (9) and the outer wall of the U-shaped box (1) are fixedly connected with friction pads (10) that abut against each other.

4. The coronary guidewire fixator according to claim 1, characterized in that: The bottom of the liquid storage box (4) is arc-shaped, and the guide rod (5) is rotatably connected to the lower part of the liquid storage box (4).

5. The coronary guidewire fixator according to claim 2, characterized in that: The upper end of the locking block (7) is fixedly connected to a fitting pad (8) that meshes with the serrations on the outer surface of the rubber pad (11).

6. The coronary guidewire fixator according to claim 1, characterized in that: The elastic structure (3) includes a connecting plate (3c), and the lower end of the locking block (7) is fixedly connected to one end of the connecting plate (3c). The other end of the connecting plate (3c) is fixedly connected to a pressing rod (3b). The bottom wall of the U-shaped box (1) has a circular hole (3a) that fits with the pressing rod (3b). The upper end of the pressing rod (3b) is fixedly connected to a circular plate (3d), and a spring (3e) is connected between the circular plate (3d) and the bottom wall of the U-shaped box (1). The spring (3e) is fitted on the outside of the pressing rod (3b).

7. The coronary guidewire fixator according to claim 1, characterized in that: The liquid storage box (4) has a through ring one (12) fixedly connected to the inner wall of one side near the end of the U-shaped box (1). The through ring one (12) is provided with bristles. The other side wall of the U-shaped box (1) is fixedly connected to the through ring two (13) through an extension plate. Both the through ring two (13) and the through ring one (12) are located in the middle of the U-shaped box (1).

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