Positioning structure for visual inspection of medical radiography guide wire

Abstract

The utility model discloses a positioning structure for visual inspection of a medical radiography guide wire. The positioning structure comprises a mounting plate, a guide mechanism, a moving plate and a positioning and clamping mechanism, wherein the guide mechanism and the moving plate are arranged at the top of the mounting plate and used for guiding the advancing direction of the guide wire, and the positioning and clamping mechanism is arranged at the top of the moving plate and used for positioning and clamping the detection position of the guide wire. A to-be-detected guide wire is arranged on the guide piece in a penetrating mode and penetrates through the inner side of the positioning cylinder, and then the penetrating guide wire can be circumferentially clamped through cooperation of the controller, the power source, the moving ring, the positioning cylinder, the connecting strip, the clamping piece, the moving plate and the translation assembly, so that the stability of the guide wire in the detection process is ensured; the guide wire detection device can adapt to detection of guide wires of different lengths and specifications, clamping, moving and feeding are automatically controlled, the clamping state of the guide wires does not need to be manually adjusted repeatedly, continuous feeding and positioning of the guide wires are achieved, the detection effect is improved, and the production efficiency of the guide wires is further improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a positioning structure for visual inspection of medical angiography guidewires. Background Technology

[0002] In the medical field, medical angiography guidewires are important medical devices widely used in procedures such as angiography and interventional surgery. Their quality and performance directly affect the success of the surgery and the health and safety of patients. When medical guidewires are inspected visually, a positioning structure is needed to clamp and position the guidewire to be inspected in order to facilitate the inspection.

[0003] Chinese utility model patent CN215115833U discloses a positioning and clamping device for visual inspection of medical angiography guidewires. The device includes a mounting backplate, a guide rod, a guide head, a pair of mounting blocks, and an initial block. The guide rod is fixed to the mounting backplate via the pair of mounting blocks. The guide head is fitted onto the guide rod. The initial block is disposed on the mounting backplate and has a clamping and fixing structure. The guide head has a sliding positioning structure, and a driving structure is provided on one side of the guide rod. This positioning device, adjustable according to the guidewire length, allows inspectors to inspect guidewires of different lengths, facilitating inspection and effectively solving the technical problem of guidewire movement affecting observation.

[0004] However, in actual production, medical angiography guidewires are often quite long, requiring multiple tests to complete the quality inspection of the entire guidewire. Although this device can effectively solve the problem of guidewire movement during observation, after each section of guidewire is inspected, the clamping state of the guidewire needs to be manually adjusted and the clamping point repositioned, which is not only cumbersome to operate but also reduces the inspection efficiency. Summary of the Invention

[0005] This invention overcomes the shortcomings of the prior art and provides a positioning structure for visual inspection of medical angiography guidewires.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a positioning structure for visual inspection of medical angiography guidewire, comprising: a mounting plate, a guiding mechanism and a moving plate disposed on the top of the mounting plate for guiding the forward direction of the guidewire, and a positioning and clamping mechanism disposed on the top of the moving plate for positioning and clamping the detection position of the guidewire.

[0007] The positioning and clamping mechanism includes: a support plate fixed to the top of the movable plate, a positioning cylinder fixed to the support plate, and a plurality of clamping pieces hinged to one end of the positioning cylinder; a movable ring is slidably connected to the side of the positioning cylinder, and a plurality of connecting strips are provided between the side of the movable ring and the side of the plurality of clamping pieces.

[0008] The top of the support plate is provided with a power source for driving the moving ring to slide along the side of the positioning cylinder, the top of the mounting plate is provided with a translation component for driving the moving plate to move closer to or away from the guide mechanism, and the top of the mounting plate is provided with a controller for receiving or issuing commands.

[0009] In a preferred embodiment of this utility model, the translation direction of the movable plate is the same as the guiding direction of the guiding mechanism; one end of the plurality of connecting strips is hinged to the side of the plurality of clamping pieces, and the other end is hinged to the side of the movable ring; the plurality of clamping pieces are evenly distributed circumferentially at one end of the positioning cylinder.

[0010] In a preferred embodiment of this utility model, a non-slip pad is provided on one side of the clamping pieces facing the middle of the positioning cylinder.

[0011] In a preferred embodiment of this utility model, the power source is one of an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder; the output end of the power source is fixed to the side of the moving ring, and the power source is electrically connected to the controller.

[0012] In a preferred embodiment of the present invention, the guiding mechanism includes: a plurality of guide cylinders disposed on the top of the mounting plate, a plurality of connecting plates disposed at both ends of the plurality of guide cylinders, and a floating component disposed on one side of the connecting plates for adaptive floating of the distance between the plurality of guide cylinders; the bottom of the connecting plates is fixed to the top of the mounting plate, and the two ends of the guide cylinders are rotatably connected to the floating component.

[0013] In a preferred embodiment of this utility model, a plurality of the guide tubes are arranged symmetrically in the upper and lower parts, and the sides of the guide tubes are arc-shaped.

[0014] In a preferred embodiment of the present invention, the floating component includes: a plurality of floating grooves formed on the side of the connecting plate facing the guide cylinder, a floating block slidably connected to the inner side of the floating grooves, and a reset spring fixed between the side of the floating block and the inner side of the floating grooves; one side of the floating block is rotatably connected to one end of the guide cylinder.

[0015] In a preferred embodiment of this utility model, the translation component includes: a plurality of linear guide rails fixed to the top of the mounting plate, a plurality of slide bars fixed to the bottom of the movable plate, and a rack fixed to the top of the mounting plate; the bottom of the slide bars is slidably connected to the top of the linear guide rails, a servo motor is fixed to the top of the movable plate, and a gear is installed at the output end of the servo motor located at the bottom of the movable plate, the side of the gear meshing with one side of the rack.

[0016] In a preferred embodiment of this utility model, the rack is located between a plurality of linear guides, and the number of linear guides is the same as the number of slide bars; the servo motor is electrically connected to the controller.

[0017] In a preferred embodiment of the present invention, the surface of the mounting plate is provided with a plurality of mounting holes, which are either threaded holes or smooth holes.

[0018] This utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0019] (1) This utility model provides a positioning structure for visual inspection of medical angiography guide wires. By setting a positioning clamping mechanism on the top of the moving plate, the guide wire to be inspected is passed through the guide and then through the inner side of the positioning cylinder. Through the cooperation of the controller, power source, moving ring, positioning cylinder, connecting strip, clamping plate, moving plate and translation component, the guide wire can be circumferentially clamped to ensure the stability of the guide wire during the inspection process. It can not only adapt to the inspection of guide wires of different lengths and specifications, but also automatically control the clamping, moving and feeding, eliminating the need to repeatedly manually adjust the clamping state of the guide wire, realizing continuous feeding and positioning of the guide wire, improving the inspection effect and further improving the production efficiency of the guide wire.

[0020] (2) In this utility model, by setting a guide mechanism on the top of the mounting plate, when the guide wire passes between several guide tubes, the guide tubes can be adaptively floated by the cooperation of the floating groove, the floating block and the reset spring, ensuring that the guide tubes always fit the guide wire, so that the several guide tubes can adapt to guide wires of different diameters, and improve the flexibility and accuracy of the detection.

[0021] (3) In this utility model, by setting a translation component on the top of the mounting plate, when the moving plate is driven to move, the moving distance of the moving plate can be precisely controlled by the meshing of the servo motor and the rack and pinion, through the cooperation of the servo motor, gear, rack, slide bar and linear guide rail, thereby realizing the continuous feeding and positioning of the guide wire in the detection process. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0023] Figure 1 This is a perspective structural diagram of a preferred embodiment of the present invention;

[0024] Figure 2 This is a partial enlarged view of the movable plate and slide bar separation structure of a preferred embodiment of this utility model;

[0025] Figure 3This is a three-dimensional structure of the guide mechanism and a partial enlarged view of it according to a preferred embodiment of the present invention;

[0026] In the diagram: 1. Mounting plate; 2. Guide mechanism; 21. Guide cylinder; 22. Connecting plate; 23. Floating groove; 24. Floating block; 25. Return spring; 3. Moving plate; 4. Positioning and clamping mechanism; 41. Support plate; 42. Positioning cylinder; 43. Clamping piece; 44. Moving ring; 45. Connecting bar; 46. Power source; 5. Translation component; 51. Linear guide rail; 52. Slide bar; 53. Rack; 54. Servo motor; 55. Gear; 6. Controller; 7. Mounting hole. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0028] like Figure 1 and Figure 2 As shown, a positioning structure for visual inspection of a medical angiography guidewire includes: a mounting plate 1, a guiding mechanism 2 and a moving plate 3 disposed on the top of the mounting plate 1 for guiding the forward direction of the guidewire, and a positioning clamping mechanism 4 disposed on the top of the moving plate 3 for positioning and clamping the detection position of the guidewire; the positioning clamping mechanism 4 includes: a support plate 41 fixed to the top of the moving plate 3, a positioning cylinder 42 fixed to the support plate 41, and a plurality of clamping pieces 43 hinged to one end of the positioning cylinder 42; a moving ring 44 is slidably connected to the side of the positioning cylinder 42, and a plurality of connecting strips 45 are disposed between the side of the moving ring 44 and the side of the plurality of clamping pieces 43; a power source 46 is disposed on the top of the support plate 41 for driving the moving ring 44 to slide along the side of the positioning cylinder 42, a translation component 5 is disposed on the top of the mounting plate 1 for driving the moving plate 3 to move closer to or away from the guiding mechanism 2, and a controller 6 is disposed on the top of the mounting plate 1 for receiving or issuing commands.

[0029] It should be noted that the translation direction of the moving plate 3 is the same as the guiding direction of the guiding mechanism 2; one end of several connecting strips 45 is hinged to the side of several clamping pieces 43, and the other end is hinged to the side of the moving ring 44; several clamping pieces 43 are evenly distributed circumferentially at one end of the positioning cylinder 42; the guide wire to be tested passes through the guide and through the inner side of the positioning cylinder 42; the controller 6 controls the power source 46 to push the moving ring 44 to slide along the side of the positioning cylinder 42; the several connecting strips 45 hinged between the moving ring 44 and several clamping pieces 43 can drive several clamping pieces 43 to rotate around the hinge point of the positioning cylinder 42, so that several clamping pieces 43 circumferentially clamp the passing guide wire, ensuring the stability of the guide wire during the testing process, and ensuring the stability of the guiding mechanism 2 and the positioning clamping machine. After the guide wire between the components 4 completes visual inspection, the control power source 46 drives several clamping plates 43 to release their clamping. With the cooperation of the translation component 5, the moving plate 3 and the positioning clamping mechanism 4 move along the side of the guide wire and approach the guiding mechanism 2, and re-clamp the guide wire. The translation component 5 drives the moving plate 3 and the positioning clamping mechanism 4 back to the initial position, which can pull the guide wire, so that a new section of guide wire between the guiding mechanism 2 and the positioning clamping mechanism 4 enters the inspection area. In this way, it can not only adapt to the inspection of guide wires of different lengths and specifications, but also achieve continuous feeding and positioning of guide wires through automated control of clamping, movement and feeding, without the need for repeated manual adjustment of the clamping state of the guide wire, thereby improving the inspection effect and further improving the production efficiency of guide wires.

[0030] It is understood that the control circuit of controller 6 can be implemented by simple programming by those skilled in the art, and is common knowledge in the field. Furthermore, since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0031] In some embodiments, a plurality of clamping pieces 43 are provided with anti-slip pads on the side facing the middle of the positioning cylinder 42; this can increase the friction between the clamping pieces 43 and the guide wire, preventing the guide wire from sliding or falling off due to external force during the detection process.

[0032] In some embodiments, the power source 46 is one of an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder; the output end of the power source 46 is fixed to the side of the moving ring 44, and the power source 46 is electrically connected to the controller 6; it can provide sufficient driving force to move the moving ring 44, thereby realizing the clamping and releasing action of the clamping piece 43; as the power for the translation of the moving ring 44, the structure in which the power source 46 drives the moving ring 44 to slide along the side of the positioning cylinder 42 can be implemented by technical means known to those skilled in the art, and therefore will not be described in detail here.

[0033] like Figure 3As shown, in some embodiments, the guiding mechanism 2 includes: a plurality of guide cylinders 21 disposed on the top of the mounting plate 1, a plurality of connecting plates 22 disposed at both ends of the plurality of guide cylinders 21, and a floating component disposed on one side of the connecting plate 22 for adaptively floating the distance between the plurality of guide cylinders 21; the bottom of the connecting plate 22 is fixed to the top of the mounting plate 1, and the two ends of the guide cylinders 21 are rotatably connected to the floating component.

[0034] It should be noted that several guide tubes 21 are arranged symmetrically up and down, and the sides of the guide tubes 21 are arc-shaped; the connecting plate 22 fixes the guide tubes 21 on the mounting plate 1. The guide tubes 21 are used to guide the forward direction of the guide wire, and their sides are arc-shaped to adapt to the bending characteristics of the guide wire.

[0035] In some embodiments, the floating component includes: a plurality of floating grooves 23 formed on the side of the connecting plate 22 facing the guide cylinder 21, a floating block 24 slidably connected to the inside of the floating grooves 23, and a return spring 25 fixed between the side of the floating block 24 and the inside of the floating grooves 23; one side of the floating block 24 is rotatably connected to one end of the guide cylinder 21.

[0036] It should be noted that the number of floating grooves 23, floating blocks 24, and return springs 25 is the same as the number of guide tubes 21. When the guide wire passes through the guide tube 21, the floating blocks 24 will automatically adjust their positions according to the diameter of the guide wire. At the same time, the return springs 25 provide restoring force to ensure that the floating blocks 24 can return to their initial positions after adjustment, thereby realizing the adaptive floating of the guide tubes 21. This ensures that the guide tubes 21 are always in contact with the guide wire, so that several guide tubes 21 can adapt to guide wires of different diameters, improving the flexibility and accuracy of the detection.

[0037] like Figure 2 As shown, in some embodiments, the translation component 5 includes: a plurality of linear guide rails 51 fixed to the top of the mounting plate 1, a plurality of slide bars 52 fixed to the bottom of the moving plate 3, and a rack 53 fixed to the top of the mounting plate 1; the bottom of the slide bars 52 is slidably connected to the top of the linear guide rails 51, a servo motor 54 is fixed to the top of the moving plate 3, and a gear 55 is installed at the output end of the servo motor 54 at the bottom of the moving plate 3, and the side of the gear 55 meshes with one side of the rack 53.

[0038] It should be noted that the rack 53 is located between several linear guide rails 51, and the number of linear guide rails 51 is the same as that of the slide bars 52; the servo motor 54 is electrically connected to the controller 6; when the servo motor 54 receives the command from the controller 6, it can drive the gear 55 to rotate. Through the meshing of the rack 53 and the gear 55, the moving plate 3 and several slide bars 52 are driven to slide along several linear guide rails 51. By utilizing the meshing action of the servo motor 54 and the rack 53 and gear 55, the moving distance of the moving plate 3 can be precisely controlled, thereby realizing the continuous feeding and positioning of the guide wire during the detection process.

[0039] In some embodiments, the surface of the mounting plate 1 is provided with a plurality of mounting holes 7, which are either threaded holes or smooth holes; by providing a plurality of mounting holes 7, it can be used with fasteners such as bolts or pins to fix the mounting plate 1 in the working position, so that it can adapt to different installation environments and needs.

[0040] In use, the guide wire to be tested is threaded onto the guide cylinder 21 of the guide mechanism 2 and passes through the inner side of the positioning cylinder 42 of the positioning clamping mechanism 4. After receiving the command, the controller 6 drives the power source 46 to work, pushing the moving ring 44 to slide along the side of the positioning cylinder 42. Due to the action of the connecting strip 45, the movement of the moving ring 44 causes the clamping piece 43 to rotate around the hinge point of the positioning cylinder 42, circumferentially clamping the passed guide wire to ensure the stability of the guide wire during the testing process. Subsequently, the guide wire section between the guide mechanism 2 and the positioning clamping mechanism 4 is tested. After the test is completed, the controller 6 again controls the power source 46 to drive the clamping piece 43 to release the clamp. At the same time, the servo motor 54 of the translation component 5 receives the command and drives the gear 55 to rotate. Through the meshing of the rack 53 and the gear 55, the moving plate 3 and the slide bar 52 slide along the linear guide rail 51, so that the moving plate 3 and the positioning clamping mechanism 4 move along the side of the guide wire closer to the guide mechanism 2 and re-clamp the guide wire. Subsequently, the servo motor 54 drives the moving plate 3 and the positioning clamping mechanism 4 back to their initial positions, simultaneously pulling the guide wire so that a new section of guide wire between the guiding mechanism 2 and the positioning clamping mechanism 4 enters the detection area. During this process, the floating component of the guiding mechanism 2 can automatically adjust the distance between the guide cylinders 21 according to the diameter of the guide wire, ensuring that the guide cylinders 21 are always in contact with the guide wire. By continuously controlling the clamping, moving, and feeding actions, continuous feeding and positioning of the guide wire are achieved, improving the detection effect and production efficiency, while also being able to adapt to the detection of guide wires of different lengths and specifications.

[0041] Based on the above description and the preferred embodiments of this utility model, it will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A positioning structure for visual detection of a medical angiography guide wire, characterized by, Include: The installation plate (1) is provided on the top of the installation plate (1) for guiding the advancing direction of the guide wire guiding mechanism (2) and the moving plate (3), and the positioning and clamping mechanism (4) for positioning and clamping the detected position of the guide wire is arranged on the top of the moving plate (3); The positioning and clamping mechanism (4) comprises: a support plate (41) fixed on the top of the moving plate (3), a positioning cylinder (42) fixed on the support plate (41), and a plurality of clamping pieces (43) hinged on one end of the positioning cylinder (42); The side of the positioning cylinder (42) is slidably connected with the moving ring (44), and the side of the moving ring (44) is connected with the side of the plurality of clamping pieces (43) through a plurality of connecting strips (45). The top of the support plate (41) is provided with a power source (46) for driving the moving ring (44) to slide along the side of the positioning cylinder (42), the top of the installation plate (1) is provided with a translation assembly (5) for driving the moving plate (3) to move close to or away from the guiding mechanism (2), and the top of the installation plate (1) is provided with a controller (6) for receiving or sending instructions.

2. The positioning structure for visual detection of a medical angiography guide wire according to claim 1, characterized in that: The translation direction of the moving plate (3) is the same as the guiding direction of the guiding mechanism (2); one end of the plurality of connecting strips (45) is hinged with the side of the plurality of clamping pieces (43), and the other end is hinged with the side of the moving ring (44); The plurality of clamping pieces (43) are evenly distributed on one end of the positioning cylinder (42).

3. The positioning structure for visual detection of a medical contrast guide wire according to claim 1, characterized in that: The side of the plurality of clamping pieces (43) towards the middle of the positioning cylinder (42) is provided with a non-slip pad.

4. The positioning structure for visual detection of a medical contrast guide wire according to claim 1, characterized in that: The power source (46) is one of an electric cylinder, a gas cylinder or a hydraulic cylinder; The output end of the power source (46) is fixed with the side of the moving ring (44), and the power source (46) is electrically connected with the controller (6).

5. The positioning structure for visual detection of a medical contrast guide wire according to claim 1, characterized in that: The guiding mechanism (2) comprises: a plurality of guiding cylinders (21) arranged on the top of the installation plate (1), a plurality of connecting plates (22) arranged on both ends of the plurality of guiding cylinders (21), and a floating assembly arranged on one side of the connecting plate (22) for realizing adaptive floating between the plurality of guiding cylinders (21); The bottom of the connecting plate (22) is fixed with the top of the installation plate (1), and the two ends of the guiding cylinder (21) are rotatably connected with the floating assembly.

6. The positioning structure for visual detection of a medical contrast guide wire according to claim 5, characterized in that: The plurality of guiding cylinders (21) are arranged symmetrically up and down, and the side of the guiding cylinder (21) is arc-shaped.

7. The positioning structure for visual detection of a medical contrast guide wire according to claim 5, characterized in that: The floating assembly comprises: a plurality of floating grooves (23) opened on one side of the connecting plate (22) towards the guiding cylinder (21), a floating block (24) slidably connected inside the floating groove (23), and a reset spring (25) fixed between the side of the floating block (24) and the inside of the floating groove (23); One side of the floating block (24) is rotatably connected with one end of the guiding cylinder (21).

8. The positioning structure for visual detection of a medical angiography guide wire according to claim 1, characterized in that: The translation assembly (5) comprises several linear guides (51) fixed on the top of the mounting plate (1), several sliding strips (52) fixed on the bottom of the moving plate (3), and a rack (53) fixed on the top of the mounting plate (1); the bottom of the sliding strip (52) is in sliding connection with the top of the linear guide (51), the top of the moving plate (3) is fixed with a servo motor (54), the output end of the servo motor (54) located on the bottom of the moving plate (3) is provided with a gear (55), and the side surface of the gear (55) is in mesh with one side of the rack (53).

9. The positioning structure for visual detection of a medical contrast guide wire according to claim 8, characterized in that: The rack (53) is located between several linear guides (51), and the number of the linear guides (51) is the same as that of the sliding strips (52); the servo motor (54) is electrically connected with the controller (6).

10. The positioning structure for visual detection of a medical angiography guide wire according to claim 1, characterized in that: The surface of the mounting plate (1) is provided with several mounting holes (7), and the mounting holes (7) are one of threaded holes or light holes.

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