Guide wire bending test detection device

Abstract

The utility model discloses a guide wire bending test detection device, and relates to the technical field of medical instruments. The device structurally comprises a vertically-arranged base plate, supporting bottom frames are fixedly connected to the two ends of the bottom face of the base plate, bending and straightening mechanisms are arranged on the side walls of the supporting bottom frames, and a distance adjusting mechanism is fixedly connected to the center ends of the bending and straightening mechanisms and comprises two symmetrically-arranged mounting plates; and a cylinder is fixedly mounted at the front end of each of the two mounting plates. Through the design of the distance adjusting mechanism and the cylinder, the device can adapt to accurate bending tests of guide wires with different diameters; the gap between the two cylinders can be adjusted according to the maximum outer diameter of the guide wire, so that the accuracy and repeatability of the test are ensured; due to the design of the bending and straightening mechanism, the operation process is simplified, the disc is controlled to rotate through the stepping motor, then the swing rod, the connecting rod, the sliding block and other assemblies are driven to work cooperatively, and automatic wire feeding displacement and bending of the guide wire are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and particularly relates to a guide wire bending test detection device. Background Art

[0002] In medical intervention surgeries, as a key medical device, guide wires are widely used to guide various instruments into narrow spaces such as blood vessels, urinary and digestive systems of the human body. Due to their important role in surgeries, extremely high quality requirements are imposed on guide wires, especially in terms of their flexibility and anti-bending performance. Guide wires must maintain integrity and functionality in complex in-vivo environments to ensure the smooth progress of surgeries.

[0003] To ensure that the performance of guide wires meets the requirements of clinical applications, conducting a bending test on them is an essential quality control step. This test usually involves repeatedly bending and straightening the guide wire in the reverse direction and then checking for damage or coating peeling. However, traditional bending test devices have some limitations. Firstly, these devices often require manual operation, which is not only cumbersome but also inefficient. Secondly, it may be difficult to keep the installation position and bending angle of the guide wire consistent during each test, which will affect the accuracy and repeatability of the test results.

[0004] In addition, existing guide wire bending test devices may require reinstalling the guide wire multiple times during testing, which not only increases the complexity of the operation but may also cause unnecessary damage to the guide wire. Therefore, developing a new type of guide wire bending test detection device that can improve test accuracy, simplify the operation process, enhance safety and test efficiency is of great significance for ensuring the quality of guide wires. For this reason, this application document provides a guide wire bending test detection device. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a guide wire bending test detection device, which has significant advantages in improving test accuracy, operation convenience, adaptability, maintenance convenience, safety and test efficiency, and provides an efficient and reliable guide wire quality detection tool for the medical field.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model relates to a detection device for wire bending test, which comprises a vertically arranged substrate; both ends of the bottom surface of the substrate are fixedly connected with supporting bottom frames; a bending and straightening mechanism is arranged on the side wall of the supporting bottom frame; a spacing adjusting mechanism is fixedly connected to the central end of the bending and straightening mechanism; the spacing adjusting mechanism comprises two symmetrically arranged mounting plates; a cylinder is fixedly installed at the front end of each of the two mounting plates; both ends of the bending and straightening mechanism are fixedly connected with bolt fasteners for fixing both ends of the wire; the bending and straightening mechanism comprises a housing fixed on the rear side wall of the substrate; a stepping motor is fixedly connected to the rear side wall of the housing; the main shaft end of the stepping motor penetrates into the housing and is fixedly connected with a disc; two swing rods are symmetrically and hingedly installed on the disc; two symmetrically arranged chute openings are formed in the side wall of the substrate; a slider is slidably connected in the chute opening; a connecting rod is fixedly connected to the rear side wall of the slider; one end of the swing rod is hingedly connected with the connecting rod; a connecting rod is fixedly connected to the front side wall of the slider; the bolt fastener comprises a pipe body and a handle bolt threadedly installed on the pipe body; one end of the connecting rod is fixedly connected with the pipe body; a rotating rod is fixedly connected to the center of the disc; one end of the rotating rod penetrates through the substrate and is fixedly connected with the spacing adjusting mechanism.

[0008] As a preferred technical solution of the utility model, the spacing adjusting mechanism comprises a rectangular groove shell fixedly connected with the rotating rod; a hand wheel rod is inserted and rotatably connected to one end of the rectangular groove shell; a bidirectional lead screw is fixedly connected to one end of the hand wheel rod; two symmetrically arranged nut blocks are threadedly connected to the bidirectional lead screw; a connecting block is fixedly connected to one side of each of the two nut blocks; one end of each of the two connecting blocks is fixedly connected with one of the two mounting plates.

[0009] As a preferred technical solution of the utility model, the inner wall of the rectangular groove shell is in frictional connection with the side wall of the nut block.

[0010] As a preferred technical solution of the utility model, a control switch is fixedly connected to one side of the housing, and one end of the control switch is electrically connected with the stepping motor.

[0011] As a preferred technical solution of the utility model, a through hole is formed in the side wall of the substrate; the through hole is rotatably connected with the rotating rod through a bearing member; the mounting plate and the cylinder are fixedly connected by means of threaded connection.

[0012] As a preferred technical solution of the utility model, a sliding rod is fixedly connected in the chute opening; the sliding rod penetrates through the slider.

[0013] The utility model has the following beneficial effects:

[0014] 1. Through the spacing adjustment mechanism and the cylindrical design, this utility model enables the device to adapt to guide wires of different diameters for accurate bending tests. The gap between the two cylinders can be adjusted according to the maximum outer diameter of the guide wire, ensuring the accuracy and repeatability of the test.

[0015] 2. The design of the bending and straightening mechanism of this utility model simplifies the operation process. By controlling the rotation of the disc with a stepper motor, and then driving the coordinated work of components such as the swing rod, connecting rod, and slider, the automatic wire feeding displacement and bending of the guide wire are achieved. At the same time, the spacing adjustment mechanism allows for quick adjustment of the spacing between the two cylinders to adapt to guide wires of different specifications, further improving the convenience of operation.

[0016] 3. The device of this utility model can adapt to guide wires of different diameter specifications for bending tests. By simply replacing the cylinders of different diameters through a threaded connection method and adjusting the cylinder spacing through the spacing adjustment mechanism, the device has high flexibility and adaptability.

[0017] 4. The device of this utility model has a high degree of automation, reducing the chance for operators to directly contact the test equipment and test materials, thus reducing the possible safety risks during the operation process.

[0018] Of course, it is not necessary for any product implementing this utility model to simultaneously achieve all the above-mentioned advantages. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions of the embodiments of this utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of this utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic structural diagram of the guide wire bending test detection device of this utility model during testing.

[0021] Figure 2 It is a partial cross-sectional view of this utility model.

[0022] Figure 3 It is a schematic structural diagram of the spacing adjustment mechanism of this utility model.

[0023] Figure 4 It is a cross-sectional view of the spacing adjustment mechanism of this utility model.

[0024] In the drawings, the list of components represented by each reference numeral is as follows:

[0025] 1 - Substrate, 2 - Support chassis, 3 - Mounting plate, 4 - Cylinder, 5 - Bolt fastener, 6 - Housing, 7 - Stepper motor, 8 - Disc, 9 - Swing rod, 10 - Chute opening, 11 - Slide block, 12 - Link rod, 13 - Connecting rod, 14 - Rotating rod, 15 - Rectangular groove housing, 16 - Handwheel rod, 17 - Bi-directional lead screw, 18 - Nut block, 19 - Connecting block, 20 - Control switch, 21 - Slide bar, 51 - Pipe body, 52 - Bolt with handle. Detailed implementation manner

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Specific embodiment one:

[0028] Please refer to Figures 1-4 As shown, the present invention is a wire bending test detection device. It includes a vertically arranged substrate 1. Both ends of the bottom surface of the substrate 1 are fixedly connected with support chassis 2. A bending and straightening mechanism is provided on the side wall of the support chassis 2. The central end of the bending and straightening mechanism is fixedly connected with a spacing adjustment mechanism. The spacing adjustment mechanism includes two symmetrically arranged mounting plates 3. A cylinder 4 is fixedly installed at the front end of each of the two mounting plates 3. The diameter of the cylinder 4 is twenty times the maximum outer diameter of the wire. During positioning, the gap between the two cylinders 4 should be one to three times the maximum outer diameter of the wire. When testing each part of the device with appropriate risk-based clinical demonstration, cylinders 4 with different diameters can be used. Both ends of the bending and straightening mechanism are fixedly connected with bolt fasteners 5 for fixing both ends of the wire.

[0029] Among them, the bending and straightening mechanism includes a housing 6 fixed to the rear side wall of the substrate 1. A stepping motor 7 is fixedly connected to the rear side wall of the housing 6. The main shaft end of the stepping motor 7 penetrates into the housing 6 and is fixedly connected to a disc 8. Two swing rods 9 are symmetrically and pivotally mounted on the disc 8. Two symmetrically arranged chute openings 10 are formed in the side wall of the substrate 1. A slider 11 is slidably connected in the chute opening 10. A connecting rod 12 is fixedly connected to the rear side wall of the slider 11. One end of the swing rod 9 is hinged to the connecting rod 12. A connecting rod 13 is fixedly connected to the front side wall of the slider 11. The bolt fastener 5 includes a pipe body 51 and a bolt 52 with a handle threadedly installed on the pipe body; one end of the connecting rod 13 is fixedly connected to the pipe body 51. A rotating rod 14 is fixedly connected to the center of the disc 8. One end of the rotating rod 14 penetrates the substrate 1 and is fixedly connected to the pitch adjusting mechanism. A through hole is formed in the side wall of the substrate 1. The through hole is rotatably connected to the rotating rod 14 through a bearing member, facilitating the rotation of the rotating rod 14. A sliding rod 21 is fixedly connected in the chute opening 10. The sliding rod 21 penetrates the slider 11, making the displacement of the slider 11 more stable. A control switch 20 is fixedly connected to one side of the housing 6. One end of the control switch 20 is electrically connected to the stepping motor 7. The rotation angle can be set. It is externally powered. The related circuit is prior art and can be fully realized by those skilled in the art without further elaboration.

[0030] Among them, the mounting plate 3 and the cylinder 4 are fixedly connected by a threaded connection, which is convenient for disassembly, so as to replace the cylinder 4 with different diameter specifications according to the guide wires with different diameter specifications. When performing a bending test on the guide wire, the two ends of the guide wire are respectively fixed on the two bolt fasteners 5, and the guide wire is passed through between the two cylinders 4. The stepping motor 7 is started to work, driving the disc 8 to rotate, and then driving the rotating rod 14 to rotate, which can drive the two cylinders 4 to rotate to bend the guide wire. At the same time, when the disc 8 rotates, it drives the two swing rods 9 to swing synchronously, pulling the two connecting rods 12 to displace towards each other, driving the connecting rod 13 fixed to the slider 11 to displace, and then driving the two bolt fasteners 5 to displace towards the cylinder 4, so as to automatically feed the wire when the two ends of the guide wire are bent, ensuring the smooth bending of the guide wire. On the contrary, when the stepping motor 7 rotates in reverse, the cylinder 4 loses the bending effect on the guide wire, and at the same time, the two bolt fasteners 5 displace in the opposite direction to straighten the guide wire. By repeating such operations, multiple bending and straightening operations can be performed on the guide wire to achieve the bending test of the guide wire. During the test process, there is no need to install and disassemble the guide wire, the operation is simpler, the test efficiency is improved, and the test accuracy is higher.

[0031] Among them, the spacing adjusting mechanism includes a rectangular groove housing 15 fixedly connected to the rotating rod 14. One end of the rectangular groove housing 15 is inserted and rotatably connected with a handwheel rod 16. One end of the handwheel rod 16 is fixedly connected with a bidirectional lead screw 17. Two symmetrically arranged nut blocks 18 are threadedly connected to the bidirectional lead screw 17. One side of each of the two nut blocks 18 is fixedly connected with a connecting block 19. One ends of the two connecting blocks 19 are respectively fixedly connected to the two mounting plates 3. The inner wall of the rectangular groove housing 15 is in frictional connection with the side wall of the nut block 18, which can limit the axial rotation of the nut block 18. When it is necessary to adjust the spacing between the two cylinders 4 according to the diameter of the wire guide, rotate the handwheel rod 16 to drive the bidirectional lead screw 17 to rotate. Since the bidirectional lead screw 17 is threadedly connected to the two nut blocks 18 respectively, at this time, the two nut blocks 18 are forced to displace in opposite directions, and then drive the two mounting plates 3 fixed to the two connecting blocks 19 to displace, realizing the adjustment of the spacing between the two cylinders 4. The adjustment is convenient, so as to perform bending tests on wire guides of different diameter specifications.

[0032] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present invention, so that those skilled in the relevant technical fields can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A guide wire bending test detection device, characterized in that: It comprises a vertically arranged base plate (1); both ends of the bottom surface of the base plate (1) are fixedly connected to a supporting base frame (2); the side wall of the supporting base frame (2) is provided with a bending and straightening mechanism; the central end of the bending and straightening mechanism is fixedly connected to a spacing adjustment mechanism; the spacing adjustment mechanism comprises two symmetrically arranged mounting plates (3); a cylinder (4) is fixedly mounted on the front end of each of the two mounting plates (3); both ends of the bending and straightening mechanism are fixedly connected to bolt fasteners (5) for fixing the two ends of the guide wire; The bending and straightening mechanism comprises a cover shell (6) fixed to the rear side wall of the base plate (1); the rear side wall of the cover shell (6) is fixedly connected to a stepper motor (7); the main shaft end of the stepper motor (7) passes through the cover shell (6) and is fixedly connected to a disk (8); two swing rods (9) are axially symmetrically hingedly mounted on the disk (8); the side wall of the base plate (1) is provided with two symmetrically arranged slide grooves (10); a slider (11) is slidably connected in the slide grooves (10); the rear side wall of the slider (11) is fixedly connected to a connecting rod (12); one end of the swing rod (9) is hingedly connected to the connecting rod (12); the front side wall of the slider (11) is fixedly connected to a connecting rod (13); a rotating rod (14) is fixedly connected at the center of the disk (8); one end of the rotating rod (14) passes through the base plate (1) and is fixedly connected to the spacing adjustment mechanism.

2. A guide wire bending test detection device according to claim 1, characterized in that: The bolt fastener (5) comprises a tube body (51) and a bolt with a handle (52) threadedly penetrated and installed on the tube body (51); one end of the connecting rod (13) is fixedly connected to the tube body (51).

3. A guide wire bending test detection device according to claim 2, characterized in that: The spacing adjustment mechanism comprises a rectangular slot shell (15) fixedly connected to the rotating rod (14); a handwheel rod (16) is inserted into and rotatably connected to one end of the rectangular slot shell (15); a bidirectional screw rod (17) is fixedly connected to one end of the handwheel rod (16); two symmetrically arranged nut blocks (18) are threadedly connected to the bidirectional screw rod (17); one side of the two nut blocks (18) is fixedly connected to a connecting block (19); one end of the two connecting blocks (19) is fixedly connected to two mounting plates (3) respectively; and the inner wall of the rectangular slot shell (15) is frictionally connected to the side wall of the nut block (18).

4. A guide wire bending test detection device according to claim 1, characterized in that: A control switch (20) is fixedly connected to one side of the cover shell (6); one end of the control switch (20) is electrically connected to the stepping motor (7).

5. A guide wire bending test detection device according to claim 1, characterized in that: A through hole is provided on the side wall of the base plate (1); the through hole is rotatably connected to the rotating rod (14) via a bearing member; and the mounting plate (3) and the cylinder (4) are fixedly connected via a threaded connection.

6. A guide wire bending test detection device according to claim 1, characterized in that: A sliding rod (21) is fixedly connected to the sliding groove opening (10); the sliding rod (21) is arranged to penetrate the sliding block (11).

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