A concentricity detection device and method for medical catheter production

Abstract

The application relates to a concentricity detection device and method for medical catheter production, and belongs to the field of catheter concentricity detection. The device comprises a rack, a rotating disc, a feeding mechanism, a positioning mechanism, a rotating mechanism, a camera detection module and a discharging mechanism. The rotating disc is symmetrically arranged on the rack and has two rotating discs. The feeding mechanism is arranged on the rack and is used for feeding the medical catheter to the positioning mechanism. The positioning mechanism is arranged on the rotating disc and is used for positioning the medical catheter. The rotating mechanism is arranged on the rack and is used for driving the rotating disc to rotate. The camera detection module is arranged on the rack and is used for detecting the concentricity of the medical catheter. The discharging mechanism is arranged on the rack and is used for discharging the detected medical catheter from the positioning mechanism. The application can quickly and accurately detect the concentricity of the medical catheter, reduces human operation and intervention, and effectively improves the accuracy and efficiency of the medical catheter concentricity detection.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of catheter concentricity detection, in particular to a concentricity detection device and method for medical catheter production. BACKGROUND

[0002] As an important part of medical devices, the concentricity of medical catheters directly affects the performance and safety of the catheters. At present, the production process of medical catheters has been relatively mature, but due to factors such as material, mold, and process, the concentricity of the catheters may deviate during the production process. Catheters with unqualified concentricity may cause liquid flow to be unsmooth, increase patient discomfort, and even cause medical accidents during use. Therefore, accurate detection of the concentricity of medical catheters is a key link to ensure product quality.

[0003] Currently, the commonly used method for detecting the concentricity of catheters in the industry is contact measurement: using a contact measurement tool such as a micrometer or a caliper to measure the wall thickness at different positions of the catheter, and then calculating the concentricity. This method has limited accuracy and slow measurement speed, and is prone to inaccurate results due to human operation errors. SUMMARY

[0004] In order to improve the accuracy and efficiency of medical catheter concentricity detection, the present application provides a concentricity detection device and method for medical catheter production.

[0005] The concentricity detection device for medical catheter production provided by the present application adopts the following technical solution:

[0006] A concentricity detection device for medical catheter production, comprising a rack, a turntable, a feeding mechanism, a positioning mechanism, a rotating mechanism, a camera detection module, and a discharging mechanism, the two turntables are symmetrically arranged on the rack and rotate, the feeding mechanism is arranged on the rack and is used to feed the medical catheter to the positioning mechanism, the positioning mechanism is arranged on the turntable and is used to position the medical catheter, the rotating mechanism is arranged on the rack and is used to drive the turntable to rotate, the camera detection module is arranged on the rack and is used to detect the concentricity of the medical catheter, and the discharging mechanism is arranged on the rack and is used to discharge the medical catheter from the positioning mechanism after detection.

[0007] By using the above technical solution, the feeding mechanism feeds the medical catheter to be detected for concentricity to the positioning mechanism, the positioning mechanism positions the medical catheter, and then the rotating mechanism drives the turntable to rotate, which can drive the medical catheter to rotate. The camera detection module detects the concentricity of the medical catheter during the process. After detection, the discharging mechanism discharges the medical catheter from the positioning mechanism. The concentricity of the medical catheter can be detected quickly and accurately, human operation and intervention are reduced, and the accuracy and efficiency of medical catheter concentricity detection are effectively improved.

[0008] Optionally, the feeding mechanism comprises a conveying belt, a tray, a three-way moving module and a picking assembly, the conveying belt is arranged on a rack, the tray is arranged on the conveying belt and is used for loading a plurality of medical catheters, the three-way moving module is arranged on the rack and is used for driving the picking assembly to move in horizontal and vertical directions, and the picking assembly is arranged on the three-way moving module and is used for picking up the medical catheter and driving the medical catheter to rotate.

[0009] By adopting the above technical scheme, the plurality of medical catheters to be detected are inserted into the tray, then the tray is conveyed by the conveying belt, the three-way moving module drives the picking assembly to move above one of the medical catheters on the tray, the picking assembly picks up the medical catheter, the three-way moving module drives the picking assembly and the medical catheter to move to the positioning mechanism, the picking assembly drives the medical catheter to rotate to a horizontal state, then the medical catheter is positioned by the positioning mechanism, and the picking assembly releases the medical catheter, so that the medical catheter can be conveniently and quickly fed to the rotating disc.

[0010] Optionally, the picking assembly comprises a support, an adjusting seat, an adjusting piece and a clamping part, the support is arranged on the three-way moving module, the adjusting seat is arranged on the support in a vertical rotating manner, the adjusting piece is arranged on the support and is used for driving the adjusting seat to rotate, and the clamping part is arranged on the adjusting seat and is used for clamping the medical catheter.

[0011] By adopting the above technical scheme, after the clamping part clamps the medical catheter, the adjusting piece drives the adjusting seat to rotate, and the adjusting seat can rotate with the clamping part and the medical catheter, so as to adjust the angle of the medical catheter.

[0012] Optionally, the adjusting seat is provided with a cleaning assembly used for cleaning the medical catheter, the cleaning assembly comprises a cleaning cover, a control piece, a blower and a suction fan, the cleaning cover is arranged on the adjusting seat in a sliding manner towards the clamping part, the control piece is arranged on the adjusting seat and is used for driving the cleaning cover to slide, and the blower and the suction fan are arranged on the cleaning cover.

[0013] By adopting the above technical scheme, during the process that the clamping part picks up the medical catheter and transports the medical catheter to the rotating disc, the control piece drives the cleaning cover to cover the medical catheter, the blower blows air flow to blow away the impurities on the medical catheter, and the suction fan sucks away the impurities, so that the medical catheter is cleaned during the transportation process, the possibility that the impurities on the medical catheter affect the subsequent detection is reduced, and the detection precision of the medical catheter is improved.

[0014] Optionally, the positioning mechanism comprises a sliding seat, a sliding piece and a positioning clamp jaw, the sliding seat is slidingly arranged on one of the turntables in a direction towards the adjacent turntable, the sliding piece is arranged on the turntable and is used to drive the sliding seat to move, and the positioning clamp jaw is arranged on the sliding seat and the turntable opposite to the sliding seat respectively, and the positioning clamp jaw is used to clamp the medical catheter.

[0015] By adopting the above technical scheme, the clamping part clamps the medical catheter to the positioning clamp jaw on the turntable opposite to the sliding seat, after the positioning clamp jaw clamps and positions the medical catheter, the sliding piece drives the sliding seat to slide the other positioning clamp jaw, so that the other positioning clamp jaw slides to the other end of the medical catheter to clamp the medical catheter, that is, the two ends of the medical catheter are clamped and positioned by the two positioning clamp jaws respectively, and the sliding piece drives the sliding seat to move the positioning clamp jaw, which can be suitable for positioning medical catheters of different lengths.

[0016] Optionally, the positioning clamp jaw comprises a clamping plate, a clamping cylinder and a opening component, two clamping plates are slidingly arranged on the turntable or the sliding seat, the clamping cylinder is arranged on the turntable or the sliding seat and is used to drive the two clamping plates to move close to or away from each other, and the opening component is arranged on the turntable or the sliding seat and is used to be tightly arranged on the inner wall of the medical catheter.

[0017] By adopting the above technical scheme, when clamping the medical catheter with small or no end opening, the clamping cylinder drives the two clamping plates to move close to each other, so that the two clamping plates can clamp the medical catheter, when clamping the medical catheter with large end opening, the medical catheter is first clamped and positioned by the two clamping plates, then the opening component is tightly arranged on the inner wall of the medical catheter, and then the two clamping plates are loosened, so that the medical catheter can be positioned, and the interference of the clamping plate on the camera detection module in the subsequent detection process is reduced.

[0018] Optionally, the opening component comprises an opening seat, an extending cylinder, an opening plate and an opening cylinder, the opening seat is slidingly arranged on the turntable or the sliding seat, the extending cylinder is arranged on the turntable or the sliding seat and is used to drive the opening seat to slide, two opening plates are slidingly arranged on the opening seat, and the opening cylinder is arranged on the opening seat and is used to drive the two opening plates to move close to or away from each other.

[0019] By adopting the above technical scheme, after the clamping plate clamps the medical catheter, the extending cylinder drives the opening plate to extend into the end opening of the medical catheter, and then the opening cylinder drives the two opening plates to move away from each other to be tightly arranged on the inner wall of the medical catheter, so that the medical catheter can be conveniently positioned from the inner wall of the medical catheter.

[0020] Optionally, the rotating mechanism comprises a linkage shaft, linkage gear sets and a rotating motor, the linkage shaft is rotatably arranged on the rack, the linkage gear sets are arranged on the linkage shaft in two, the two linkage gear sets are respectively used to drive the two rotating discs to rotate when the linkage shaft rotates, and the rotating motor is arranged on the rack and is used to drive the linkage shaft to rotate.

[0021] By adopting the above technical scheme, the rotating motor drives the linkage shaft to rotate, the linkage shaft drives the two linkage gear sets to synchronously rotate, and the two linkage gear sets can drive the two rotating discs to synchronously rotate, so that the two rotating discs synchronously drive the medical catheter.

[0022] Optionally, the rotating discs are arranged in multiple groups in twos on the rack, and the clamping parts are arranged in multiple on the adjusting seat.

[0023] By adopting the above technical scheme, when the clamping parts load the medical catheters on the tray to the position of the positioning mechanism, the multiple clamping parts can clamp multiple medical catheters, and then load the multiple medical catheters to the multiple groups of rotating discs in twos, so that multiple medical catheters are detected at one time, and the detection efficiency is improved.

[0024] The medical catheter production concentricity detection method provided in the application adopts the following technical scheme:

[0025] A medical catheter production concentricity detection method comprises the following steps:

[0026] S1: The conveying belt conveys the tray loaded with the medical catheters to be detected, and the picking assembly picks the medical catheters to the positioning mechanism;

[0027] S2: The positioning clamping jaw on the rotating disc positions one end of the medical catheter, and the sliding seat drives the other positioning clamping jaw to position the other end of the medical catheter;

[0028] S3: The rotating mechanism drives the two rotating discs to rotate, so that the medical catheter rotates, and the camera detection module detects the concentricity of the medical catheter through visual detection;

[0029] S4: The unloading mechanism unloads the medical catheter after detection to the empty tray on the conveying belt.

[0030] In summary, the application has at least one of the following beneficial technical effects:

[0031] The concentricity of the medical catheter is quickly and accurately detected, human operation and intervention are reduced, and the accuracy and efficiency of the medical catheter concentricity detection are effectively improved;

[0032] The air blower blows the impurities on the medical catheter away, and the air suction machine sucks away the impurities blown away, so that the medical catheter is cleaned during the transportation process, the possibility that the impurities on the medical catheter affect the subsequent detection is reduced, and the detection precision of the medical catheter is improved.

[0033] When the medical catheter with a large opening at the end is clamped, the medical catheter is first clamped and positioned by the two clamping plates, and then is clamped on the inner wall of the medical catheter by the opening assembly, and then the two clamping plates are loosened, so that the medical catheter is positioned, and the interference of the clamping plate on the camera detection module in the subsequent detection process is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 FIG. 1 is a structural schematic diagram of a concentricity detection device for medical catheter production according to an embodiment of the present application.

[0035] Figure 2 FIG. 5 is a structural schematic diagram of a pickup assembly according to an embodiment of the present application (partially cutaway view of a cleaning cover).

[0036] Figure 3 FIG. 6 is a structural schematic diagram of a positioning mechanism according to an embodiment of the present application.

[0037] Figure 4 FIG. 7 is a structural schematic diagram of a positioning clamp according to an embodiment of the present application.

[0038] The drawings show that the device comprises a rack 1, a rotating disc 2, a feeding mechanism 3, a positioning mechanism 4, a rotating mechanism 5, a camera detection module 6, a discharging mechanism 7, and a cleaning assembly 8. DETAILED DESCRIPTION

[0039] The following will be described in detail below with reference to the drawings. Figure 1 - the drawings Figure 4 The present application will be further described in detail.

[0040] The present application discloses a concentricity detection device and method for medical catheter production.

[0041] Reference Figure 1The concentricity testing device for medical catheter production includes a frame 1, a turntable 2, a feeding mechanism 3, a positioning mechanism 4, a rotating mechanism 5, a camera testing module 6, and a unloading mechanism 7.

[0042] Reference Figure 1 , Figure 2 The feeding mechanism 3 is installed on the frame 1. The feeding mechanism 3 is used to feed the medical catheters to be tested to the positioning mechanism 4. The feeding mechanism 3 includes a conveyor belt 31, a tray 32, a three-way moving module 33, and a pickup component 34. The conveyor belt 31 is installed on the frame 1, and the tray 32 is placed on the conveyor belt 31. The tray 32 is used to load medical catheters. In this embodiment, multiple medical catheters are vertically inserted into the tray 32. The three-way moving module 33 is installed on the frame 1. The three-way moving module 33 is used to drive the pickup component 34 to move horizontally and vertically. In this embodiment, the three-way moving module 33 includes a gantry frame 331, a support beam 332, a slide block 333, and a lifting cylinder 334. The gantry frame 331 is installed on the frame 1, and the support beam 332 is slidably installed on the gantry frame 331. The slide block 333 is slidably mounted on the support beam 332. The sliding directions of the support beam 332 and the slide block 333 are perpendicular. The sliding of the support beam 332 on the gantry frame 331 and the sliding of the slide block 333 on the support beam 332 are both driven by a rack, a motor and gears. The rack is mounted on the gantry frame 331 and the support beam 332. A set of motors and gears are respectively mounted on the support beam 332 and the slide block 333. The gear on the support beam 332 meshes with the rack on the gantry frame 331, and the gear on the slide block 333 meshes with the rack on the support beam 332. By starting the motor to drive the gears to rotate, the slide block 333 can be driven to slide on the support beam 332, and the support beam 332 can be driven to slide on the gantry frame 331. The lifting cylinder 334 is vertically mounted on the slide block 333.

[0043] Reference Figure 2The pickup assembly 34 is vertically slidingly installed on the sliding seat 333, and the pickup assembly 34 is used for picking up the medical catheter and driving the medical catheter to rotate. The pickup assembly 34 comprises a support 341, an adjusting seat 342, an adjusting part 343 and clamping parts 344. The support 341 is vertically slidingly installed on the sliding seat 333 and connected with the piston rod of the lifting cylinder 334. The adjusting seat 342 is hingedly installed on the support 341. The adjusting part 343 is installed on the support 341 and used for driving the adjusting seat 342 to rotate. In this embodiment, the adjusting part 343 is a servo motor which is installed on the support 341. The output shaft of the servo motor is coaxially connected with the hinged shaft of the adjusting seat 342 to drive the adjusting seat 342 to rotate. Three clamping parts 344 are arranged and installed on the adjusting seat 342. The clamping parts 344 are used for clamping the medical catheter. In this embodiment, the clamping part 344 comprises a clamping seat, a cylinder, arc-shaped plates and a double-head cylinder. The clamping seat is slidingly installed on the adjusting seat 342 in the direction towards the adjusting seat 342. The cylinder is installed on the adjusting seat 342 and the piston rod of the cylinder is connected with the clamping seat. Two arc-shaped plates are slidingly installed on the clamping seat in opposite directions. The double-head cylinder is installed on the clamping seat and the piston rods at both ends of the double-head cylinder are respectively connected with one arc-shaped plate.

[0044] The staff inserts the medical catheters to be detected for concentricity into the tray 32 and places the tray 32 on the conveying belt 31. The conveying belt 31 can convey the tray 32 to the material taking position of the clamping part 344. The three-way moving module 33 drives the clamping part 344 to move above the tray 32. The cylinder of the clamping part 344 drives the clamping seat to drive the two arc-shaped plates to move downwards to the two sides of the medical catheter. The piston rods of the double-head cylinder are retracted so that the two arc-shaped plates clamp the medical catheter. Then, the piston rod of the cylinder or the double-head cylinder can make one clamping part 344 pick up one medical catheter. Then, the other two clamping parts 344 pick up the other two medical catheters. The three-way moving module 33 drives the three clamping parts 344 to drive the three medical catheters to move to the position of the positioning mechanism 4. During the movement, the adjusting part 343 drives the adjusting seat 342 to rotate. The adjusting seat 342 drives the clamping part 344 to rotate so that the clamping part 344 drives the medical catheter to rotate to the horizontal state. The medical catheter can be conveniently and quickly conveyed from the tray 32 to the positioning mechanism 4. The vertical medical catheter can be adjusted to the horizontal state, which is convenient for the subsequent positioning mechanism 4 to position the medical catheter.

[0045] Referring to Figure 2A cleaning assembly 8 is installed on the adjusting seat 342. The cleaning assembly 8 is used to drive the medical catheter held by the clamping part 344 to clean. The cleaning assembly 8 includes a cleaning cover 81, a control component 82, a blower 83, and a suction fan 84. The cleaning cover 81 is slidably installed on the adjusting seat 342 in the direction toward the clamping part 344. The control component 82 is installed on the adjusting seat 342 and is used to drive the cleaning cover 81 to slide. In this embodiment, the control component 82 is a cylinder. The cylinder is installed on the adjusting seat 342 and the piston rod of the cylinder is connected to the cleaning cover 81. The blower 83 and the suction fan 84 are both installed on the cleaning cover 81. The blower 83 is installed at the open end of the cleaning cover 81, and the suction fan 84 is installed on the side of the cleaning cover 81 away from the open end.

[0046] During the process of the three-way moving module 33 driving the clamping part 344 to move the medical catheter to the positioning mechanism 4, the control component 82 drives the cleaning cover 81 to cover the three clamping parts 344 inside, the blower 83 blows out a high-speed airflow to blow away the impurities adhering to the medical catheter, and the suction fan 84 sucks away the impurities, thereby cleaning the medical catheter during the transportation process, improving the cleanliness of the medical catheter in subsequent testing, reducing the possibility that impurities adhering to the medical catheter will affect subsequent testing, and improving the accuracy of testing the medical catheter.

[0047] Reference Figure 1 , Figure 3 Multiple turntables 2 are rotatably mounted on the frame 1. In this embodiment, six turntables 2 are rotatably mounted on the frame 1, arranged in pairs, with the two turntables 2 in each pair arranged horizontally symmetrically. A rotating mechanism 5 is mounted on the frame 1 and is used to drive the two turntables 2 in the same pair to rotate synchronously. The rotating mechanism 5 includes a linkage shaft 51, a linkage gear set 52, and a rotating motor 53. The linkage shaft 51 is rotatably mounted on the frame 1, and one linkage gear set 52 is installed at each end of the linkage shaft 51. 2 are respectively used to drive the two turntables 2 to rotate when the linkage shaft 51 rotates. In this embodiment, the linkage gear set 52 includes a first bevel gear set, a transmission rod and a second bevel gear set. The first bevel gear set is mounted on the linkage shaft 51. The transmission rod is rotatably mounted on the frame 1 and is used to rotate when the first bevel gear set rotates. The second bevel gear set is mounted on the transmission rod and is used to drive the turntable 2 to rotate when the transmission rod rotates. The rotating motor 53 is mounted on the frame 1. The rotating motor 53 drives the linkage shaft 51 to rotate through the reducer and the bevel gear set.

[0048] Start the rotating motor 53, which drives the linkage shaft 51 to rotate. The linkage shaft 51 drives the linkage gear sets 52 at both ends to rotate. The two linkage gear sets 52 can then drive the two turntables 2 to rotate synchronously, so that the two ends of the medical catheter can be driven to rotate synchronously, thereby improving the stability of driving the medical catheter to rotate.

[0049] Referring to Figure 3 , Figure 4 , the positioning mechanism 4 is installed on the turntable 2, and the positioning mechanism 4 is used for positioning the medical catheter on the turntable 2, and the positioning mechanism 4 comprises a sliding seat 41, a sliding piece 42 and a positioning clamp jaw 43. The sliding seat 41 is slidingly installed on one of the turntables 2 towards the direction of the other turntable 2 in the same group. The sliding piece 42 is installed on the turntable 2 and is used to drive the sliding seat 41 to slide. In this embodiment, the sliding piece 42 is a pneumatic cylinder which is installed on the turntable 2. The piston rod of the pneumatic cylinder is connected with the moving seat, so that the sliding seat 41 is driven to slide by the extension and retraction of the piston rod of the pneumatic cylinder. The positioning clamp jaw 43 is installed on the sliding seat 41 and the turntable 2 opposite to the sliding seat 41 respectively. The positioning clamp jaw 43 is used to clamp the medical catheter. The positioning clamp jaw 43 comprises a clamping plate 431, a clamping pneumatic cylinder 432 and a strutting assembly 433. The clamping plate 431 is slidingly installed on the turntable 2 or the sliding seat 41 oppositely with the center of the turntable 2 as the midpoint. The clamping pneumatic cylinder 432 is installed on the turntable 2 or the sliding seat 41 and is used to drive the two clamping plates 431 to move close to or away from each other. In this embodiment, the clamping pneumatic cylinder 432 is a double-head pneumatic cylinder. The piston rods at both ends of the double-head pneumatic cylinder are connected with the two clamping plates 431 respectively.

[0050] Referring to Figure 3 , Figure 4 , the strutting assembly 433 is installed on the turntable 2 or the sliding seat 41 and is used to be tightly strutting to the inner wall of the medical catheter. The strutting assembly 433 comprises a strutting seat 4331, an extending pneumatic cylinder 4332, a strutting plate 4333 and a strutting pneumatic cylinder 4334. The strutting seat 4331 is slidingly installed on the turntable 2 or the sliding seat 41 towards the direction of the opposite turntable 2. The extending pneumatic cylinder 4332 is installed on the turntable 2 or the sliding seat 41. The piston rod of the extending pneumatic cylinder 4332 is connected with the strutting seat 4331. The strutting plate 4333 is slidingly installed oppositely on the strutting seat 4331 with the center of the turntable 2 as the midpoint. In this embodiment, the sliding seat 41 is provided with a gap for the extending pneumatic cylinder 4332 to drive the strutting seat 4331 and the two strutting plates 4333 to exit from between the two clamping plates 431. The strutting pneumatic cylinder 4334 is installed on the strutting seat 4331 and is used to drive the two strutting plates 4333 to move close to or away from each other. In this embodiment, the strutting pneumatic cylinder 4334 is a double-head pneumatic cylinder. The piston rods at both ends of the strutting pneumatic cylinder 4334 are connected with one strutting plate 4333 respectively.

[0051] The clamping part 344 transfers the medical catheter to the positioning clamping jaw 43 directly installed on the turntable 2, the air cylinder of the clamping part 344 drives the medical catheter to extend between the adjacent clamping plates 431, the clamping air cylinder 432 drives the two clamping plates 431 to approach each other, and the two clamping plates 431 can clamp and position the end of the medical catheter, then the clamping part 344 releases the medical catheter, and the other two clamping parts 344 transfer the other two medical catheters to the other two positioning clamping jaws 43 directly installed on the turntable 2, respectively, then the sliding part 42 drives the sliding seat 41 to move towards the opposite turntable 2, and the sliding seat 41 drives the other three positioning clamping jaws 43 to move to the end of the medical catheter which is not clamped, so that the other end of the medical catheter is clamped and positioned by the three sets of clamping plates 431 on the sliding seat 41, thereby facilitating the positioning of the medical catheter, and the sliding part 42 drives the sliding seat 41 to move towards the opposite turntable 2, which is suitable for clamping and positioning catheters of different lengths and diameters, and improves the applicability of positioning medical catheters of different lengths and diameters. If the end opening of the medical catheter is large, after the two clamping plates 431 clamp the medical catheter, the extension air cylinder 4332 drives the supporting plates 4333 to extend into the end opening of the medical catheter, and then the supporting air cylinder 4334 drives the two supporting plates 4333 to move away from each other and tightly support the inner wall of the medical catheter, so that the medical catheter can be positioned on the inner wall of the medical catheter, and then the two clamping plates 431 are released, and the supporting plates 4333 can position the medical catheter, thereby reducing the interference of the clamping plates 431 on the outer wall of the medical catheter with the camera detection module 6 during the subsequent detection process, and improving the detection accuracy.

[0052] Referring to Figure 1 , the camera detection module 6 is installed on the rack 1, and the camera detection module 6 is used for detecting the concentricity of the medical catheter. In this embodiment, a light source is installed on the rack 1 to irradiate the medical catheter, which facilitates the camera detection module 6 to clearly take pictures of the medical catheter. The camera detection module 6 detects the concentricity of the medical catheter through visual detection, that is, the camera detection module 6 takes multiple-angle pictures of the rotating medical catheter, then transmits the taken data to the control system, and the control system compares the taken image with the set standard image to measure the concentricity of the medical catheter.

[0053] Referring to Figure 1 , the blanking mechanism 7 is installed on the rack 1, and the blanking mechanism 7 is used for taking away the medical catheter after detection from the positioning clamping jaw 43 for blanking. In this embodiment, the structure of the blanking mechanism 7 is the same as that of the feeding mechanism 3, which will not be described in detail here.

[0054] The implementation principle of the concentricity detection device for medical catheter production is that the conveying belt 31 feeds the tray 32 loaded with a plurality of medical catheters to be detected, and an empty tray 32 is placed at the unloading position of the conveying belt 31, the three-way moving module 33 drives the picking assembly 34 to pick the medical catheter on the tray 32, and then the three-way moving module 33 drives the picking assembly 34 to move the medical catheter to the positioning mechanism 4, the adjusting part 343 drives the adjusting seat 342 to rotate to adjust the medical catheter to a horizontal state, and the cleaning assembly 8 cleans the impurities on the medical catheter, and drives the medical catheter to move to the positioning clamp jaw 43 directly installed on the turntable 2, the positioning clamp jaw 43 clamps one end of the medical catheter, the sliding part 42 drives the sliding seat 41 installed on another turntable 2 to move another positioning clamp jaw 43 towards the other end of the medical catheter, and the other positioning clamp jaw 43 clamps the other end of the medical catheter to clamp and position the medical catheter, the rotating mechanism 5 drives the turntable 2 to rotate the medical catheter, the camera detection module 6 takes pictures of the medical catheter at multiple angles during the rotation of the medical catheter, and then the concentricity of the medical catheter is detected through visual detection, after the detection is completed, the unloading mechanism 7 takes the medical catheter from the positioning clamp jaw 43 and unloads it on the empty tray 32 on the conveying belt 31, so that the concentricity of the medical catheter can be detected quickly and accurately, human operation and intervention are reduced, and the precision and efficiency of the medical catheter concentricity detection are effectively improved.

[0055] A concentricity detection method for medical catheter production, comprising the following steps:

[0056] S1: The conveying belt 31 conveys the tray 32 loaded with the medical catheter to be detected to feed, and the picking assembly 34 picks the medical catheter to the positioning mechanism 4;

[0057] S2: The positioning clamp jaw 43 on the turntable 2 positions one end of the medical catheter, and the sliding seat 41 drives another positioning clamp jaw 43 to position the other end of the medical catheter;

[0058] S3: The rotating mechanism 5 drives the two turntables 2 to rotate, so that the medical catheter rotates, and the camera detection module 6 detects the concentricity of the medical catheter through visual detection;

[0059] S4: The unloading mechanism 7 unloads the medical catheter after detection to the empty tray 32 on the conveying belt 31.

[0060] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A concentricity testing device for medical catheter manufacturing, characterized in that: The device includes a frame (1), a turntable (2), a feeding mechanism (3), a positioning mechanism (4), a rotating mechanism (5), a camera detection module (6), and a discharging mechanism (7). The turntable (2) is symmetrically arranged on the frame (1) in two rotations. The feeding mechanism (3) is located on the frame (1) and is used to feed medical catheters to the positioning mechanism (4). The positioning mechanism (4) is located on the turntable (2) and is used to position the medical catheters. The rotating mechanism (5) is located on the frame (1) and is used to drive the turntable (2) to rotate. The camera detection module (6) is located on the frame (1) and is used to detect the concentricity of the medical catheters. The discharging mechanism (7) is located on the frame (1) and is used to unload the tested medical catheters from the positioning mechanism (4). The positioning mechanism (4) includes a sliding seat (41), a sliding member (42), and a positioning gripper (43). The sliding seat (41) is slidably disposed on one of the turntables (2) in the direction toward the adjacent turntable (2). The sliding member (42) is disposed on the turntable (2) and is used to drive the sliding seat (41) to move. The positioning gripper (43) is provided on the sliding seat (41) and the turntable (2) opposite to the sliding seat (41), and the positioning gripper (43) is used to clamp the medical catheter. The positioning gripper (43) includes a clamping plate (431), a clamping cylinder (432), and a spreading assembly (433). Two clamping plates (431) are slidably arranged on the turntable (2) or the sliding seat (41). The clamping cylinder (432) is arranged on the turntable (2) or the sliding seat (41) and is used to drive the two clamping plates (431) to move closer or further apart. The spreading assembly (433) is arranged on the turntable (2) or the sliding seat (41) and is used to stretch it to the inner wall of the medical catheter. The spreading assembly (433) includes a spreading seat (4331), an extension cylinder (4332), a support plate (4333), and a spreading cylinder (4334). The spreading seat (4331) is slidably mounted on the turntable (2) or the sliding seat (41). The extension cylinder (4332) is mounted on the turntable (2) or the sliding seat (41) and is used to drive the spreading seat (4331) to slide. There are two support plates (4333) slidably mounted on the spreading seat (4331). The spreading cylinder (4334) is mounted on the spreading seat (4331) and is used to drive the two support plates (4333) to move closer to or further away from each other.

2. The concentricity testing device for medical catheter manufacturing according to claim 1, characterized in that: The feeding mechanism (3) includes a conveyor belt (31), a tray (32), a three-way moving module (33), and a picking component (34). The conveyor belt (31) is mounted on the frame (1). The tray (32) is mounted on the conveyor belt (31) and is used to load multiple medical catheters. The three-way moving module (33) is mounted on the frame (1) and is used to drive the picking component (34) to move horizontally and vertically. The picking component (34) is mounted on the three-way moving module (33) and is used to pick up the medical catheters and drive the medical catheters to rotate.

3. The concentricity testing device for medical catheter manufacturing according to claim 2, characterized in that: The pickup assembly (34) includes a support (341), an adjustment seat (342), an adjustment member (343), and a clamping part (344). The support (341) is mounted on the three-way moving module (33). The adjustment seat (342) is vertically rotatably mounted on the support (341). The adjustment member (343) is mounted on the support and is used to drive the adjustment seat (342) to rotate. The clamping part (344) is mounted on the adjustment seat (342) and is used to clamp the medical catheter.

4. The concentricity testing device for medical catheter manufacturing according to claim 3, characterized in that: The adjustment seat (342) is provided with a cleaning component (8) for cleaning medical test tubes. The cleaning component (8) includes a cleaning cover (81), a control component (82), a blower (83), and a suction fan (84). The cleaning cover (81) is slidably disposed on the adjustment seat (342) toward the clamping part (344). The control component (82) is disposed on the adjustment seat (342) and is used to drive the cleaning cover (81) to slide. The blower (83) and the suction fan (84) are both disposed on the cleaning cover (81).

5. The concentricity testing device for medical catheter manufacturing according to claim 1, characterized in that: The rotating mechanism (5) includes a linkage shaft (51), a linkage gear set (52), and a rotating motor (53). The linkage shaft (51) is rotatably mounted on the frame (1). There are two linkage gear sets (52) on the linkage shaft (51). The two linkage gear sets (52) are used to drive the two turntables (2) to rotate when the linkage shaft (51) rotates. The rotating motor (53) is mounted on the frame (1) and is used to drive the linkage shaft (51) to rotate.

6. The concentricity testing device for medical catheter manufacturing according to claim 3, characterized in that: The turntables (2) are arranged in pairs on the frame (1) in multiple sets, and the clamping parts (344) are arranged in multiple sets on the adjusting seat (342).

7. A detection method for a concentricity testing device used in the production of medical catheters according to any one of claims 1-6, characterized in that: Includes the following steps: S1: The conveyor belt (31) transports the tray (32) loaded with the medical catheters to be tested, and the picking component (34) picks up the medical catheters to the positioning mechanism (4); S2: The positioning jaw (43) on the turntable (2) positions one end of the medical catheter, and the sliding seat (41) drives another positioning jaw (43) to position the other end of the medical catheter. S3: The rotating mechanism (5) drives the two turntables (2) to rotate, so that the medical catheter rotates. The camera detection module (6) detects the concentricity of the medical catheter through visual detection. S4: The feeding mechanism (7) feeds the tested medical catheters onto the empty tray (32) on the conveyor belt (31).

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