Guide wire traction mechanism and automatic guide wire thermal shrinkage machine

Abstract

The utility model relates to a guide wire traction mechanism and a guide wire automatic thermal shrinkage machine, and relates to the technical field of guide wire automatic thermal shrinkage machines, the guide wire traction mechanism comprises a base, a longitudinal support plate, a guide compression roller, an electric cylinder, a bearing seat, a fixed block, a guide rod and a motor; a longitudinal supporting plate is vertically connected to the base, and an opening is formed in the middle of the longitudinal supporting plate. Fixing blocks are fixed to the two sides of the opening, and guide rods are fixed to the fixing blocks. Two bearing seats are arranged on the guide rod in a sliding manner, and guide compression rollers are rotatably mounted on the bearing seats; electric cylinders are fixedly connected to the upper end and the lower end of the longitudinal supporting plate correspondingly, output shafts of the electric cylinders are connected with the bearing pedestals correspondingly, and the electric cylinders are used for controlling the two bearing pedestals to slide on the guide rods; a motor is fixed to the side face of one bearing seat, and an output shaft of the motor is connected with the guide pressing roller on the bearing seat and used for driving the guide pressing roller to rotate. The device has the advantages that the discharging speed of the shrunk guide wire is increased, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of guide wire automatic heat shrinking machines, and more specifically, to a guide wire traction mechanism and a guide wire automatic heat shrinking machine. Background Art

[0002] Guidewires are a general term for a broad category of medical devices, including microguidewires, guidewires, renal artery guidewires, and angiographic guidewires. Based on their function, they can be divided into working guidewires and chronic total occlusion guidewires. Guidewires are essential instruments for coronary intervention, used to enter the coronary arteries or navigate through tortuosity, calcification, stenosis, and collateral circulation to reach the target, establishing a track for delivering balloons, stents, and microcatheters; they are used for guidewire upgrade or downgrade technology to open coronary occlusive lesions; and they pre-enter coronary artery branches for protection and roadmap functions. During production, guidewires require heat shrinkage, and a heat shrink mechanism is required for this process.

[0003] When commonly used medical guide wires are heat-shrinked, the discharge of commonly used guide wire heat-shrinking equipment is mostly manually operated without a corresponding traction mechanism, resulting in low efficiency.

[0004] Chinese patent document: CN 217993514U, publication date: 2022.12.09, discloses a fully automatic guide wire automatic heat shrink, comprising a workbench, a heating mechanism and a positioning mechanism installed on the top of the workbench, the heating mechanism being arranged on one side of the positioning mechanism, the heating mechanism comprising a support plate, a heating tube placed on the top of the support plate, a heat insulation plate arranged between the heating tubes, the positioning mechanism comprising a mounting frame, a stepping motor mounted on the surface of the mounting frame, and a cylinder arranged on the top of the stepping motor. The utility model, through the mutual cooperation between the heating mechanism and the positioning mechanism, can automatically heat and ensure its clamping effect during use, thereby achieving the shrinking effect, avoiding manual operation during use, resulting in manual errors during processing, making the product unable to be subsequently processed and used, or even scrapped, and increasing the processing cost of the product. However, this technical solution does not involve the traction of the guide wire discharge, which affects the overall work efficiency.

[0005] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Utility Model Content

[0006] The utility model aims to provide a guide wire pulling mechanism and a guide wire automatic heat shrinking machine. The guide wire pulling mechanism accelerates the discharge speed of the shrunk guide wire and improves the working efficiency.

[0007] The utility model provides a wire guide traction mechanism, comprising a base, a longitudinal support plate, a guide pressure roller, an electric cylinder, a bearing seat, a fixed block, a guide rod and a motor; the longitudinal support plate is vertically connected to the base, and an opening is provided in the middle of the longitudinal support plate; the fixed blocks are fixed on both sides of the opening, and the guide rod is fixed on the fixed block; two bearing seats are slidably provided on the guide rod, and the guide pressure roller is rotatably mounted on the bearing seat; the two guide pressure rollers are symmetrically arranged about the center line of the opening, and the electric cylinder is fixedly connected to the upper and lower ends of the longitudinal support plate, and the output shafts of the electric cylinder are respectively connected to the bearing seats, and the electric cylinder is used to control the two bearing seats to slide on the guide rod; the motor is fixed on the side of one of the bearing seats, and the output shaft of the motor is connected to the guide pressure roller on the bearing seat, so as to drive the guide pressure roller to rotate.

[0008] Furthermore, the guide wire traction mechanism also includes a slide rail, a slider, a traction belt and a traction wheel; two sliders are arranged at intervals below the base, and the two sliders are slidably mounted on the slide rail; the traction belt is mounted on the traction wheel, and the base is fixed on the traction belt.

[0009] Furthermore, the guide wire traction mechanism also includes a guide plate, which is connected to the bearing seat close to the base, and the guide plate is parallel to the longitudinal support plate; a plurality of guide notches are provided on the top of the guide plate, and the bottom of the guide notch is flush with the center line of the opening.

[0010] Furthermore, the guide wire traction mechanism also includes a transverse support plate, which is vertically connected to a side of the longitudinal support plate away from the guide roller, and another guide plate is vertically connected to the transverse support plate.

[0011] Furthermore, the guide wire traction mechanism also includes a protective cover, the cross-section of the protective cover is U-shaped, and the opening of the protective cover is located on the transverse support plate.

[0012] The utility model also provides an automatic heat shrinking machine for a guide wire, which comprises the above-mentioned guide wire traction mechanism.

[0013] Furthermore, the guide wire automatic heat shrink machine includes a workbench, a heating mechanism and a positioning mechanism, and the heating mechanism and the positioning mechanism are installed on the workbench; the slide rail is fixed on the workbench, and the traction wheel is connected to the motor inside the guide wire automatic heat shrink machine.

[0014] The wire guide traction mechanism of the present invention drives the two bearing seats to approach or move away synchronously when the output shaft of the electric cylinder is extended or shortened, and the bearing seats drive the guide pressure rollers to approach or move away synchronously; when in use, one end of the heat-shrinked wire enters the gap between the two guide pressure rollers (feeding port), the electric cylinder pushes the two guide pressure rollers to approach synchronously and clamp the wire, and the motor drives one of the guide pressure rollers to rotate, thereby outputting the wire, realizing the automatic traction function of the wire guide; thereby accelerating the discharge speed of the shrunken wire and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of the guide wire traction mechanism provided in an embodiment of the utility model.

[0016] Figure 2 for Figure 1 Schematic diagram of the planar structure of the guide wire traction mechanism.

[0017] Figure 3 for Figure 1 Schematic diagram of the structure of the guide wire traction mechanism from another perspective.

[0018] Figure 4 for Figure 1 Schematic diagram of the structure of the guide rail, slider, traction belt and traction wheel of the middle guide wire traction mechanism.

[0019] Figure 5 This is a schematic structural diagram of the automatic heat shrink machine for guide wires provided in an embodiment of the utility model.

[0020] The reference numerals and components in the drawings are as follows:

[0021] 1. Base 2. Longitudinal support plate 21. Opening

[0022] 3. Guide roller 4. Electric cylinder 5. Bearing seat

[0023] 6. Fixed block 7. Guide rod 8. Motor

[0024] 9. Slide rail 100, slider 200, traction belt

[0025] 300, traction wheel 400, guide plate 410, guide notch

[0026] 500, horizontal support plate 600, protective cover 700, workbench

[0027] 800, heating mechanism 900, positioning mechanism DETAILED DESCRIPTION

[0028] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] The terms "first", "second", "third", "fourth", etc. in the description and claims of the present utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0030] Example 1

[0031] Figure 1 This is a schematic structural diagram of the guide wire traction mechanism provided in an embodiment of the utility model. Figure 2 for Figure 1 Schematic diagram of the planar structure of the guide wire traction mechanism. Figure 3 for Figure 1 A structural diagram of the guide wire traction mechanism from another perspective. Figure 4 for Figure 1 Schematic diagram of the structure of the guide rail, slider, traction belt and traction wheel of the middle guide wire traction mechanism. Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 The wire guide pulling mechanism provided by the embodiment of the present invention includes a base 1, a longitudinal support plate 2, a guide pressure roller 3, an electric cylinder 4, a bearing seat 5, a fixed block 6, a guide rod 7 and a motor 8; the longitudinal support plate 2 is vertically connected to the base 1, and an opening 21 is provided in the middle of the longitudinal support plate 2; the fixed blocks 6 are fixed on both sides of the opening 21, and the guide rod 7 is fixed on the fixed block 6; two bearing seats 5 are slidably provided on the guide rod 7, and the guide pressure roller 3 is rotatably mounted on the bearing seat 5; the two guide pressure rollers 3 are symmetrically arranged about the center line of the opening 21, and the electric cylinder 4 is fixedly connected to the upper and lower ends of the longitudinal support plate 2, and the output shafts of the electric cylinder 4 are respectively connected to the bearing seats 5, and the electric cylinder 4 is used to control the two bearing seats 5 to slide on the guide rod 7; the motor 8 is fixed on the side of one of the bearing seats 5, and the output shaft of the motor 8 is connected to the guide pressure roller 3 on the bearing seat 5, so as to drive the guide pressure roller 3 to rotate.

[0032] It should be noted that when the output shaft of the electric cylinder 4 is extended or shortened, the two bearing seats 5 will be driven to move closer or farther away synchronously, and the bearing seats 5 will drive the guide rollers 3 to move closer or farther away synchronously; when in use, one end of the guide wire that has been heat-shrunk enters the feed port between the two guide rollers 3, and the electric cylinder 4 pushes the two guide rollers 3 to move closer and clamp the guide wire synchronously, and the motor 8 drives one of the guide rollers 3 to rotate, thereby outputting the guide wire and realizing the automatic traction function of the guide wire; thereby accelerating the discharge speed of the shrunk guide wire and improving work efficiency.

[0033] Further references Figure 1 、 Figure 4 The guide wire traction mechanism of the present invention also includes a slide rail 9, a slider 100, a traction belt 200 and a traction wheel 300; two sliders 100 are arranged at intervals below the base 1, and the two sliders 100 can be slidably mounted on the slide rail 9; the traction belt 200 is mounted on the traction wheel 300, and the base 1 is fixed on the traction belt 200.

[0034] When the traction wheel 300 rotates, it drives the traction belt 200 to move forward and backward, thereby driving the base 1 to move forward and backward on the slide rail 9; thereby driving the guide roller 3 to cooperate with the guide wire to enter the gap between the two guide rollers 3 (feed port).

[0035] Further references Figure 1 、 Figure 2 、 Figure 3 The guide wire pulling mechanism of the present invention further includes a guide plate 400, which is connected to the bearing seat 5 near the base 1. The guide plate 400 is parallel to the longitudinal support plate 2. A plurality of guide notches 410 are provided on the guide plate 400, and the bottom of the guide notches 410 is flush with the center line of the opening 21. The guide wire pulling mechanism further includes a transverse support plate 500, which is vertically connected to the side of the longitudinal support plate 2 away from the guide roller 3. Another guide plate 400 is vertically connected to the transverse support plate 500. The guide wire pulling mechanism further includes a protective cover 600, which has a U-shaped cross section and has an opening 21 covering the transverse support plate 500. The protective cover 600 is used to prevent the guide wire from swinging.

[0036] Figure 5 This is a schematic diagram of the structure of the automatic heat shrink machine for guide wires provided by the embodiment of the present utility model. Figure 5 The present invention also provides an automatic guide wire heat shrinking machine, which includes the above-mentioned guide wire traction mechanism.

[0037] Furthermore, the guide wire automatic heat shrink machine includes a workbench 700, a heating mechanism 800 and a positioning mechanism 900, and the heating mechanism 800 and the positioning mechanism 900 are installed on the workbench 700; the slide rail 9 is fixed on the workbench 700, and the traction wheel 300 is connected to the motor 8 inside the guide wire automatic heat shrink machine.

[0038] Based on the above description, it can be seen that the advantages of the present invention are:

[0039] 1. In the U-shaped guide mechanism 100 of the present invention, during the production process of the guide wire coating, the guide wire pulled out by the guide wire turntable mechanism 500 passes through the guide wire guide alignment device 4, passes through the U-shaped guide tube 3, and then passes out from the catheter fixing hole 21 on the fixing plate 2, and then returns to the guide wire turntable mechanism 500; thereby, the excess guide wire is placed in the formed U-shaped loop tube, and there is no need to coil the excess length of the guide wire with a clamp, which reduces the degree of deformation of the guide wire and improves the quality and use effect of the guide wire.

[0040] 2. This new coating equipment uses a motor to move the guidewire up and down, ensuring the integrity of the guidewire and preventing deformation, thereby improving quality and efficiency. The guidewire can be coated up to 1.7 meters in length, and the entire product can be extended to 3.5 meters. The U-shaped solution tube movement mechanism and the product installation also utilize a U-shaped guide tube design, increasing compatibility while reducing the equipment's overall size. The compact structure, precise details, simple operation, and improved production efficiency are all part of this new equipment.

[0041] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A guide wire traction mechanism, characterized in that: It comprises a base (1), a longitudinal support plate (2), a guide roller (3), an electric cylinder (4), a bearing seat (5), a fixing block (6), a guide rod (7) and a motor (8); The longitudinal support plate (2) is vertically connected to the base (1), and an opening (21) is provided in the middle of the longitudinal support plate (2); the fixing blocks (6) are fixed on both sides of the opening (21), and the guide rod (7) is fixed on the fixing blocks (6); Two bearing seats (5) are slidably provided on the guide rod (7), and the guide roller (3) is rotatably mounted on the bearing seat (5); the two guide rollers (3) are symmetrically arranged about the center line of the opening (21); the electric cylinder (4) is fixedly connected to the upper and lower ends of the longitudinal support plate (2), and the output shaft of the electric cylinder (4) is respectively connected to the bearing seat (5), and the electric cylinder (4) is used to control the two bearing seats (5) to slide on the guide rod (7); The motor (8) is fixed on the side of one of the bearing seats (5), and the output shaft of the motor (8) is connected to the guide pressure roller (3) on the bearing seat (5) to drive the guide pressure roller (3) to rotate.

2. The guide wire pulling mechanism according to claim 1, characterized in that: The guide wire traction mechanism further comprises a slide rail (9), a slider (100), a traction belt (200) and a traction wheel (300); Two sliders (100) are spaced apart below the base (1), and the two sliders (100) are slidably mounted on the slide rail (9); the traction belt (200) is mounted on the traction wheel (300), and the base (1) is fixed on the traction belt (200).

3. The guide wire pulling mechanism according to claim 1, characterized in that: The guide wire traction mechanism also includes a guide plate (400), which is connected to the bearing seat (5) close to the base (1), and the guide plate (400) is parallel to the longitudinal support plate (2); a plurality of guide notches (410) are provided on the guide plate (400), and the bottom of the guide notches (410) is flush with the center line of the opening (21).

4. The guide wire pulling mechanism according to claim 3, characterized in that: The guide wire traction mechanism also includes a transverse support plate (500), which is vertically connected to a side of the longitudinal support plate (2) away from the guide roller (3), and another guide plate (400) is vertically connected to the transverse support plate (500).

5. The guide wire pulling mechanism according to claim 4, characterized in that: The guidewire traction mechanism further comprises a protective cover (600), the cross section of the protective cover (600) is U-shaped, and the opening (21) of the protective cover (600) covers the transverse support plate (500).

6. A guide wire automatic heat shrink machine, characterized in that: The guidewire automatic heat shrinking machine includes the guidewire traction mechanism according to any one of claims 1 to 5.

7. The automatic heat shrinking machine for guide wire according to claim 6, characterized in that: The guide wire automatic heat shrinking machine comprises a workbench (700), a heating mechanism (800) and a positioning mechanism (900), wherein the heating mechanism (800) and the positioning mechanism (900) are installed on the workbench (700); the slide rail (9) is fixed on the workbench (700), and the traction wheel (300) is connected to a motor (8) inside the guide wire automatic heat shrinking machine.

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