Catheter outer surface detection device

Abstract

The utility model provides a catheter outer surface detection device, and belongs to the technical field of quality detection. The lead screw nut mechanism is mounted on the operating platform; the detection table is mounted on the sliding block of the lead screw nut mechanism and is used for bearing a to-be-detected guide pipe; the fixing device is used for fixing the catheter to be detected on the detection table; and the detection device is mounted on the operation platform and is used for carrying out visual detection on the guide pipe on the detection platform. According to the utility model, the lead screw nut mechanism is controlled to drive the detection table to move along the lead screw nut mechanism, and the detection device detects the conduit, so that the industrial problems of low manual detection efficiency and high omission ratio are solved.

Description

Technical Field

[0001] This utility model relates to the field of quality inspection technology, and in particular to a device for inspecting the outer surface of a catheter. Background Technology

[0002] Laser ablation catheters (referred to as catheters) are fiber optic catheters used in cardiovascular disease treatment surgeries. The catheters themselves have a certain degree of flexibility, and to ensure quality during production, they require visual inspection. Traditional catheter surface defect detection mainly relies on manual visual inspection, which suffers from low efficiency (inspection time per catheter ≥ 5 minutes), high false negative rate (statistical false negative rate > 15%), and inconsistent inspection standards. Especially for minimally invasive catheters with a diameter less than 3mm, the false negative rate is extremely high due to errors in manual movement or rotation. Therefore, there is an urgent need for equipment that can automatically move the catheter during the inspection process to reduce the false negative rate. Utility Model Content

[0003] This invention provides a catheter outer surface inspection device to address the shortcomings of traditional catheter inspection methods in the prior art.

[0004] This utility model provides a device for inspecting the outer surface of a conduit, comprising: an operating platform; a screw and nut mechanism mounted on the operating platform; an inspection table mounted on the slider of the screw and nut mechanism for supporting the conduit to be inspected; a fixing device for fixing the conduit to be inspected on the inspection table; and an inspection device mounted on the operating platform for visually inspecting the conduit on the inspection table.

[0005] According to the present invention, a conduit outer surface inspection device includes a screw nut mechanism comprising a threaded screw, a slider, a screw seat, and a drive motor. The screw seat is fixed on an operating platform. Both ends of the threaded screw are mounted on the screw seat via bearings. The slider is provided with a threaded through hole through which the threaded screw passes. One end of the threaded screw is connected to the drive motor fixedly mounted on the screw seat. The drive motor is used to drive the threaded screw to rotate.

[0006] According to the present invention, a catheter outer surface detection device is provided, wherein the bottom surface of the detection platform is provided with a groove, and the slider is provided with a protrusion corresponding to the groove.

[0007] According to the present invention, a tube outer surface detection device is provided, wherein the bottom of the slider is provided with a groove, the top of the lead screw seat is provided with a guide rail corresponding to the groove, and the slider moves along the guide rail.

[0008] According to the present invention, a catheter outer surface inspection device includes a support, a high-definition electron microscope and a display screen. The support is fixed to one side of the inspection stage, the high-definition electron microscope is mounted on the support, and the display screen is mounted on the operating platform. The high-definition electron microscope is electrically connected to the display screen.

[0009] According to the present invention, a catheter outer surface detection device is provided, wherein the fixing device is an arc-shaped elastic sheet, and a set of fixing devices consists of two arc-shaped elastic sheets, which are respectively installed at both ends of the catheter.

[0010] According to the present invention, the outer surface detection device for a catheter is provided, wherein the arc-shaped elastic sheet is made of soft material such as plastic or is a metal sheet, and a layer of sponge or foam is provided on the inner side.

[0011] According to the present invention, a catheter outer surface detection device is provided, wherein the fixing device can be set in multiple groups, and multiple catheters are installed respectively.

[0012] According to the present invention, a catheter outer surface inspection device includes a support comprising a vertical rod and a horizontal rod. The vertical rod is installed on the operating platform perpendicular to the plane of the inspection table, and one end of the horizontal rod is fixed to the top of the vertical rod. The horizontal rod is parallel to the plane of the inspection table.

[0013] According to the present invention, a catheter outer surface inspection device is provided, wherein the crossbar is connected to the high-definition electron microscope via a universal joint.

[0014] This utility model provides a catheter outer surface inspection device, which drives the inspection table to move along the screw and nut mechanism by controlling the screw and nut mechanism, and the inspection device inspects the catheter, solving the industry problems of low efficiency and high missed detection rate of manual inspection. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a catheter outer surface detection device provided by this utility model;

[0017] Figure 2 This is a structural schematic diagram of the fixing device provided by this utility model.

[0018] Figure label:

[0019] 100. Operating platform;

[0020] 200. Lead screw and nut mechanism;

[0021] 210. Lead screw; 220. Lead screw seat; 221. Guide rail; 230. Drive motor; 240. Slider; 241. Raised bar;

[0022] 300. Testing station;

[0023] 310. Groove;

[0024] 400. Fixture;

[0025] 500. Detection device;

[0026] 510. Support; 511. Vertical rod; 512. Horizontal rod; 520. High-definition electron microscope; 530. Display screen. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" indicate the direction or positional relationship, which is usually based on Figure 1 The orientation and position of the catheter outer surface detection device shown are for the purpose of describing the present invention and simplifying the description only. Unless otherwise stated, these directional terms do not indicate or imply that the device or component 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 the scope of protection of the present invention. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0031] This utility model provides a catheter outer surface detection device 500, see [link]. Figure 1 The device includes: an operating platform 100; a lead screw and nut mechanism 200 mounted on the operating platform 100; a testing table 300 mounted on the slider 240 of the lead screw and nut mechanism 200 for carrying the conduit to be tested; a fixing device 400 for fixing the conduit to be tested on the testing table 300; and a testing device 500 mounted on the operating platform 100 for visually inspecting the conduit on the testing table 300.

[0032] By controlling the lead screw and nut mechanism 200 to drive the testing table 300 to move along the lead screw and nut mechanism 200, the testing table 300 is moved, and the testing device 500 tests the conduit, which solves the industry problem of low efficiency and high missed detection rate of manual testing.

[0033] In one embodiment, the lead screw and nut mechanism 200 includes a threaded lead screw 210, a slider 240, a lead screw seat 220, and a drive motor 230. The lead screw seat 220 is fixed on the operating platform 100. The two ends of the threaded lead screw 210 are mounted on the lead screw seat 220 through bearings. The slider 240 is provided with a threaded through hole through which the threaded lead screw 210 passes. One end of the threaded lead screw 210 is connected to the drive motor 230 fixedly mounted on the lead screw seat 220. The drive motor 230 is used to drive the threaded lead screw 210 to rotate.

[0034] The slider 240 is provided with a threaded through hole, which meshes with the threaded screw 210. The two ends of the threaded screw 210 are mounted on the screw seat 220. The threaded screw is suspended and the two ends can rotate. After the drive motor 230 is turned on, the threaded screw 210 rotates, which drives the slider 240 to move along the threaded screw 210.

[0035] For example, the diameter of the lead screw 210 is 12±0.005 mm and the lead is 2 mm. The bottom surface of the lead screw seat 220 and the contact surface between the lead screw seat 220 and the operating platform 100 are provided with a surface roughness of Ra.0.8.

[0036] For example, the lead screw and nut mechanism 200 includes a switch (not shown) connected to the drive motor 230 for turning the drive motor 230 on and off.

[0037] For example, the drive mechanism is a motor, which is directly connected to the shaft end of the screw and nut mechanism 200 through a flexible coupling, and can drive the screw to rotate in the forward and reverse directions.

[0038] In one embodiment, the bottom surface of the detection stage 300 is provided with a groove 310, the slider 240 is provided with a protrusion 241 corresponding to the groove 310, and the connector is fixed on the slider 240.

[0039] The testing table 300 and the slider 240 are assembled by the cooperation of the groove 310 and the convex strip 241. The convex strip 241 slides along the groove 310, so that the convex strip 241 is inserted into the groove 310 to complete the installation of the testing table 300 and the slider 240. At the same time, it is convenient to replace the testing table 300 of different sizes.

[0040] In one embodiment, the bottom of the slider 240 is provided with a groove, and the top of the lead screw seat 220 is provided with a guide rail 221 corresponding to the groove, and the slider 240 moves along the guide rail 221.

[0041] The arrangement of the slide and guide rail 221 ensures that when the threaded screw 210 rotates, the slider 240 does not rotate with it, thus converting the rotational force into a linear force, causing the slider 240 to move along the threaded screw 210.

[0042] In one embodiment, the detection device 500 includes a support 510, a high-definition electron microscope 520, and a display screen 530. The support 510 is fixed to one side of the detection stage 300, the high-definition electron microscope 520 is mounted on the support 510, and the display screen 530 is mounted on the operating platform 100. The high-definition electron microscope 520 is electrically connected to the display screen 530.

[0043] The images observed by the high-definition electron microscope 520 can be displayed on the screen 530, allowing for a clearer observation of the condition of the outer surface of the duct.

[0044] For example, the switch can be integrated into the display screen 530 for operation.

[0045] In one embodiment, the support 510 includes a vertical rod 511 and a horizontal rod 512. The vertical rod 511 is mounted on the operating platform 100 perpendicular to the plane of the detection table 300. One end of the horizontal rod 512 is fixed to the top of the vertical rod 511, and the horizontal rod 512 is parallel to the plane of the detection table 300.

[0046] For example, the vertical rod 511 and the vertical rod 512 are telescopic rods.

[0047] For example, the bottom of the vertical rod 511 is provided with a threaded quick-install interface, and the operating platform 100 is provided with a positioning pin to facilitate the installation of the bracket 510.

[0048] In one embodiment, the support 510 is connected to the high-definition electron microscope 520 via a universal joint.

[0049] The use of a universal joint allows the angle of the 520 high-definition electron microscope to be adjusted in multiple directions, making it easier to observe the ducts.

[0050] In one embodiment, the fixing device 400 is an arc-shaped elastic sheet, and a set of fixing devices 400 consists of two arc-shaped elastic sheets, which are respectively installed at both ends of the conduit.

[0051] The catheter is placed directly on the platform, with an arc-shaped elastic plate added at both ends. One end of the arc-shaped elastic plate is fixed to the platform, while the other end is free, using elasticity to fix the catheter.

[0052] For example, catheters are easily damaged, and the curved elastic sheet cannot be pressed too tightly.

[0053] For example, the curved elastic sheet is made of a soft material such as plastic.

[0054] For example, the curved elastic sheet is a metal sheet with a layer of sponge or foam on the inside.

[0055] In one embodiment, the fixing device 400 can be set in multiple groups, each with multiple conduits installed, so as to enable multiple simultaneous detections.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for detecting the outer surface of a catheter, characterized in that, include: Operating platform; The lead screw and nut mechanism is mounted on the operating platform; The testing platform, mounted on the slider of the lead screw and nut mechanism, is used to support the conduit to be tested; A fixing device is used to fix the catheter to be tested on the testing stage; as well as The inspection device, installed on the operating platform, is used to perform visual inspection of the conduits on the inspection table.

2. The catheter outer surface detection device according to claim 1, characterized in that, The lead screw and nut mechanism includes a threaded lead screw, a slider, a lead screw seat, and a drive motor. The lead screw seat is fixed on the operating platform. Both ends of the threaded lead screw are mounted on the lead screw seat through bearings. The slider has a threaded through hole through which the threaded lead screw passes. One end of the threaded lead screw is connected to the drive motor fixedly mounted on the lead screw seat. The drive motor is used to drive the threaded lead screw to rotate.

3. The catheter outer surface detection device according to claim 2, characterized in that, The bottom surface of the testing platform is provided with a groove, and the slider is provided with a protrusion corresponding to the groove.

4. The catheter outer surface detection device according to claim 3, characterized in that, The bottom of the slider is provided with a groove, and the top of the lead screw seat is provided with a guide rail corresponding to the groove, and the slider moves along the guide rail.

5. The catheter outer surface detection device according to claim 1, characterized in that, The detection device includes a support, a high-definition electron microscope, and a display screen. The support is fixed to one side of the detection stage, the high-definition electron microscope is mounted on the support, and the display screen is mounted on the operating platform. The high-definition electron microscope is electrically connected to the display screen.

6. The catheter outer surface detection device according to claim 1, characterized in that, The fixing device is an arc-shaped elastic sheet, and a set of fixing devices consists of two arc-shaped elastic sheets, which are respectively installed at both ends of the conduit.

7. The catheter outer surface detection device according to claim 6, characterized in that, The curved elastic sheet is made of soft plastic material or is a metal sheet with a layer of sponge or foam on the inside.

8. The catheter outer surface detection device according to claim 6, characterized in that, The fixing device can be set in multiple sets, each with multiple conduits installed.

9. A catheter outer surface detection device according to claim 5, characterized in that, The support includes a vertical rod and a horizontal rod. The vertical rod is installed on the operating platform perpendicular to the plane of the testing table. One end of the horizontal rod is fixed to the top of the vertical rod, and the horizontal rod is parallel to the plane of the testing table.

10. A catheter outer surface detection device according to claim 9, characterized in that, The crossbar is connected to the high-definition electron microscope via a universal joint.

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