Guidewire performance testing equipment and guidewire testing method

Abstract

The present invention relates to the technical field of testing devices, and discloses a guidewire performance detection device and a guidewire detection method, wherein the guidewire performance detection device includes: a rotating mechanism, having a first wire clamp that can rotate along a horizontal axis; a straightening mechanism, having a force tester that can move in a direction close to or away from the first wire clamp, and the test end of the force tester is provided with a second wire clamp; a clamping mechanism, including a water tank, a base, a pressing plate and a water supply joint, the water tank is located between the first wire clamp and the second wire clamp, the base is arranged in the water tank, a groove is provided on the top side of the base, the pressing plate is located above the base, the pressing plate can move downward toward the top side of the base or upward away from the base, the water supply joint is connected to the pressing plate, and a water outlet hole connected to the water supply joint is provided on the bottom side of the pressing plate. The present invention can measure a variety of parameter indicators of the guidewire under the state of simulated wetting of the guidewire, the overall use function is richer, and the accuracy of the guidewire measurement results is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of testing devices, and in particular to a guidewire performance testing device and a guidewire testing method. Background Art

[0002] After guidewire production is complete, they must be spot-checked and tested for performance. There are many parameters that affect guidewire performance, such as friction, torque, and torque-friction. Guidewires must be placed in different devices for testing, which requires more testing equipment and increases production costs. Furthermore, current testing equipment uses a simple method that can only tighten or twist the guidewire for testing, failing to simulate the internal human body environment, resulting in poor guidewire testing accuracy. Therefore, there is an urgent need for a guidewire testing device with richer functionality and more accurate performance testing. Summary of the Invention

[0003] The purpose of the present invention is to provide a guidewire performance detection device and a guidewire detection method to solve one or more technical problems existing in the prior art and at least provide a beneficial option or create conditions.

[0004] The solution of the present invention to solve its technical problems is:

[0005] The guidewire performance testing equipment includes: a rotating mechanism, having a first wire clamp that can rotate along a horizontal axis; a straightening mechanism, having a force tester that can move in a direction close to or away from the first wire clamp, and the test end of the force tester is provided with a second wire clamp; a clamping mechanism, including a water tank, a base, a pressure plate and a water supply connector, the water tank is located between the first wire clamp and the second wire clamp, the base is arranged in the water tank, a groove is provided on the top side of the base, the pressure plate is located above the base, the pressure plate can move downward toward the top side of the base or upward away from the base, the water supply connector is connected to the pressure plate, and the bottom side of the pressure plate is provided with a water outlet hole connected to the water supply connector.

[0006] This technical solution has at least the following beneficial effects: the first wire clamp and the second wire clamp are used to clamp the end of the guide wire, and the water supply connector can be connected to an external water supply device. When the guide wire performance needs to be tested, the guide wire is placed on the base, and one end of the guide wire can be clamped and fixed using the second wire clamp. Water reaching the required temperature, such as water close to body temperature, is input from the water supply connector, so that water flows from the water outlet into the groove of the base. At this time, the water moistens the surface of the guide wire and activates the hydrophilic coating on the surface of the guide wire, thereby simulating the moist environment of the guide wire in the human body. If the friction performance of the guide wire needs to be tested, the first wire clamp does not need to clamp the guide wire. The pressure plate is used to press the guide wire and position it on the base, and the force tester moves away from the base to tighten the guide wire. The force tester tests the friction performance of the guide wire by detecting the pulling force on the guide wire; if the torque performance of the guide wire needs to be tested, the first wire clamp clamps the other end of the guide wire, and then the first wire clamp rotates, and the force tester tests the torque applied to the guide wire, thereby testing the torque performance of the guide wire; if the torque friction performance of the guide wire needs to be tested, the first wire clamp clamps the other end of the guide wire, the pressure plate presses the guide wire and positions it on the base, and then the first wire clamp is rotated, and the force tester tests the torque applied to the guide wire, thereby testing the torque friction performance of the guide wire. In this way, various parameter indicators of the guide wire can be measured under the simulated wetting state of the guide wire, the overall usage function is richer, and the accuracy of the guide wire measurement results is improved.

[0007] As a further improvement to the above technical solution, the clamping mechanism includes a fixed frame connected to the water tank, and a lifting drive connected to the fixed frame. The lifting drive drives the pressure plate, and a pressure sensor is provided on the pressure plate. The pressure sensor is used to detect the downward pressure of the pressure plate. The lifting drive provides a driving force for the pressure plate to move in the up and down directions. When the guide wire needs to be clamped, the lifting drive drives the pressure plate to move downward until it is against the guide wire. At this time, the pressure sensor can detect the external force applied to the pressure plate, thereby better controlling the pressure on the guide wire and improving the accuracy of the guide wire test. After the guide wire test is completed, the lifting drive drives the pressure plate to move up and reset.

[0008] As a further improvement to the above technical solution, when the lifting drive member drives the pressure plate to abut against the base, the lifting drive member is configured to drive the pressure plate upward until the pressure value detected by the pressure sensor is 0, and then drive the pressure plate downward until the pressure sensor detects a preset pressure value. When the lifting drive member drives the pressure plate to abut against the base, the pressure value detected by the pressure sensor changes. At this time, the lifting drive member controls the pressure plate to move upward until the pressure value detected by the pressure sensor is 0, so that the pressure plate is in a state of approaching the guide wire, and then drives the pressure plate downward so that the pressure plate reaches the required downward pressure on the guide wire. In this way, the downward pressure of the pressure plate on the guide wire can be more accurately controlled, thereby meeting the performance testing requirements of the guide wire.

[0009] As a further improvement to the above technical solution, a heater and a water pump are provided in the water tank, the heater being used to heat the water in the water tank, and a water supply pipe being connected between the water pump and the water supply connector. The water tank is filled with water for wetting the guide wire, which is heated to a set temperature by the heater and then pumped to the water supply connector through the water supply pipe by the water pump, so that the water flows from the water outlet into the groove. At this time, the water supply to the groove can be continuously maintained, so that the water in the groove is full, thereby better wetting the guide wire. The water flowing out of the groove flows back into the water tank, thereby recycling water, reducing water waste and improving the wetting effect on the guide wire.

[0010] As a further improvement to the above technical solution, the rotating mechanism includes a motor and a three-jaw chuck, the motor being connected to the three-jaw chuck, the motor being able to drive the three-jaw chuck to rotate along a horizontal axis, and the three-jaw chuck clamping the first wire clamp. When it is necessary to clamp the end of the guide wire, the first wire clamp can be removed first, and after the first wire clamp is used to clamp and position the end of the guide wire, the first wire clamp can be installed into the three-jaw chuck and clamped and fixed. The motor then provides a rotational driving force to the three-jaw chuck, applying a torque to the guide wire for performance testing.

[0011] As a further improvement of the above technical solution, the straightening mechanism includes a translation drive member, which drives the force tester to be connected, and the translation drive member can drive the force tester to approach or move away from the first wire clamp. The translation drive member can provide a driving force for the force tester to approach or move away from the first wire clamp. When the guide wire needs to be tested for performance, the translation drive member drives the force tester to move in a direction away from the first wire clamp, pulls the guide wire to a straight state, and then continues to move in a direction away from the first wire clamp to perform a performance test on the guide wire. After completion, the translation drive member drives the force tester to return to the direction close to the first wire clamp and reset.

[0012] As a further improvement to the above technical solution, a slide rail is slidably connected to the bottom side of the water trough, and the water trough can be moved and locked between the first and second clamps. The water trough can slide on the slide rail to adjust the position of the water trough relative to the first and second clamps, which can facilitate performance testing of the guide wire at different positions. After completion, the water trough can be locked on the slide rail.

[0013] A guidewire testing method, using the above-mentioned guidewire performance testing equipment, includes:

[0014] The second wire clamp clamps one end of the guide wire and guides the guide wire through the base;

[0015] Supplying water of a preset temperature to the water supply connector, the water enters the water tank from the water outlet and soaks the guide wire;

[0016] The pressing plate moves downward to press the guide wire tightly against the base;

[0017] The second wire clamp moves in a direction away from the base, and the force tester measures the tension value of the guide wire.

[0018] This technical solution has at least the following beneficial effects: in this guidewire detection method, the friction performance of the guidewire is tested. At this time, the first wire clamp does not need to clamp the guidewire. The guidewire is guided through the top side of the base, and one end of the guidewire is clamped and fixed using the second wire clamp. During the test, the guidewire is pressed and positioned on the base using a pressure plate, and the force tester moves away from the base to tighten the guidewire. At this time, the force tester tests the friction performance of the guidewire by detecting the pulling force value on the guidewire.

[0019] A guidewire testing method, using the above-mentioned guidewire performance testing equipment, includes:

[0020] The first wire clamp and the second wire clamp respectively clamp the two ends of the guide wire;

[0021] Supplying water of a preset temperature to the water supply connector, the water enters the water tank from the water outlet and soaks the guide wire;

[0022] The first wire clamp rotates, and the force tester measures the torque value of the guide wire.

[0023] This technical solution has at least the following beneficial effects: in this guidewire detection method, the torque performance of the guidewire is tested. At this time, the first wire clamp and the second wire clamp respectively clamp the two ends of the guidewire, and then the first wire clamp rotates, and the force tester tests the torque value of the guidewire, thereby testing the torque performance of the guidewire.

[0024] A guidewire testing method, using the above-mentioned guidewire performance testing equipment, includes:

[0025] The first wire clamp and the second wire clamp respectively clamp the two ends of the guide wire;

[0026] Supplying water of a preset temperature to the water supply connector, the water enters the water tank from the water outlet and soaks the guide wire;

[0027] The pressing plate moves downward to press the guide wire tightly against the base;

[0028] The first wire clamp rotates, and the force tester measures the torque friction value of the guide wire.

[0029] This technical solution has at least the following beneficial effects: in this guidewire detection method, the torque friction performance of the guidewire is tested. At this time, the first wire clamp and the second wire clamp respectively clamp the two ends of the guidewire, and the pressure plate presses the guidewire to position it on the base. Then, the first wire clamp is rotated, and the torque friction force of the guidewire is tested by the force tester, thereby testing the torque friction performance of the guidewire. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for describing the embodiments. Obviously, the drawings described only illustrate some embodiments of the present invention, not all of them. Those skilled in the art can derive other design solutions and drawings based on these drawings without inventive effort.

[0031] Figure 1 It is a structural schematic diagram of the guidewire performance detection equipment of the present invention.

[0032] Figure 2 It is a structural schematic diagram of the pressing mechanism of the present invention.

[0033] In the accompanying drawings: 110-first wire clamp, 120-motor, 130-three-jaw chuck, 210-force tester, 220-second wire clamp, 230-translational drive, 310-water sink, 320-base, 330-pressing plate, 340-water supply connector, 350-fixed frame, 360-lifting drive, 370-heater, 380-slide rail. DETAILED DESCRIPTION

[0034] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0035] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0036] In the description of the present invention, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0037] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0038] Reference Figure 1 and Figure 2 , a guide wire performance testing device, including a rotating mechanism, a straightening mechanism and a pressing mechanism, wherein the rotating mechanism has a first clamp 110 that can rotate along a horizontal axis; the straightening mechanism has a force tester 210 that can move in a direction close to or away from the first clamp 110, and the test end of the force tester 210 is provided with a second clamp 220. The force tester 210 is mainly used to measure tension and torque, and can be a torque sensor and a tension sensor, or a screw sensor; the pressing mechanism includes a water tank 310, a base 320, a pressure Plate 330 and water supply connector 340, the water tank 310 is located between the first wire clamp 110 and the second wire clamp 220, the base 320 is arranged in the water tank 310, and a groove is provided on the top side of the base 320. The pressure plate 330 is located above the base 320, and the pressure plate 330 can move downward toward the top side of the base 320 or upward away from the base 320. The water supply connector 340 is connected to the pressure plate 330, and a water outlet hole connected to the water supply connector 340 is provided on the bottom side of the pressure plate 330.

[0039] As can be seen from the above, the first wire clamp 110 and the second wire clamp 220 are used to clamp the end of the guide wire, and the water supply connector 340 can be connected to an external water supply device. When the performance of the guide wire needs to be tested, the guide wire is placed on the base 320, and one end of the guide wire can be clamped and fixed using the second wire clamp 220. Water reaching the required temperature, such as water close to body temperature, is input from the water supply connector 340, so that water flows from the water outlet into the groove of the base 320. At this time, the water moistens the surface of the guide wire and activates the hydrophilic coating on the surface of the guide wire, thereby simulating the moist environment of the guide wire in the human body. If the friction performance of the guide wire needs to be tested, the first wire clamp 110 does not need to clamp the guide wire. The pressure plate 330 is used to press the guide wire and position it on the base 320, and the force tester 210 moves in a direction away from the base 320 to tighten the guide wire. The force tester 210 tests the friction performance of the guidewire by detecting the pulling force on the guidewire; if the torque performance of the guidewire needs to be tested, the first wire clamp 110 clamps the other end of the guidewire, and then the first wire clamp 110 is rotated, and the force tester 210 tests the torque applied to the guidewire, thereby testing the torque performance of the guidewire; if the torque friction performance of the guidewire needs to be tested, the first wire clamp 110 clamps the other end of the guidewire, the pressure plate 330 presses the guidewire and positions it on the base 320, and then the first wire clamp 110 is rotated, and the force tester 210 tests the torque applied to the guidewire, thereby testing the torque friction performance of the guidewire. In this way, various parameter indicators of the guidewire can be measured while simulating the wetting of the guidewire, the overall usage function is richer, and the accuracy of the guidewire measurement results is improved.

[0040] The pressure mechanism mainly forms a driving source that drives the pressure plate 330 to move up and down. In this embodiment, the clamping mechanism includes a fixed frame 350 connected to the water tank 310 and a lifting drive member 360 connected to the fixed frame 350. The lifting drive member 360 drives the pressure plate 330. The lifting drive member 360 can be an air cylinder, a hydraulic cylinder or an electric screw cylinder, etc. A pressure sensor is provided on the pressure plate 330. The pressure sensor is used to detect the downward pressure of the pressure plate 330. In actual applications, the pressure sensor can be provided at the connection between the pressure plate 330 and the lifting drive member 360. At this time, all the external forces acting on the pressure plate 330 can be transmitted to the pressure sensor. The lifting drive member 360 provides a driving force for the pressure plate 330 to move in the up and down directions. When the guide wire needs to be compressed, the lifting drive member 360 drives the pressure plate 330 to move downward until it is against the guide wire. At this time, the pressure sensor can detect the external force applied to the pressure plate 330, thereby better controlling the pressure on the guide wire and improving the accuracy of the guide wire test. After completing the guide wire test, the lifting drive member 360 drives the pressure plate 330 to move upward and reset.

[0041] In order to improve the effect of pressing and positioning the guide wire, the pressure plate 330 can be made of rubber material. In addition, the base 320 itself can also be made of rubber material, or a rubber pad can be provided at the position surrounding the groove on the top side of the base 320, thereby improving the stability of pressing and positioning the guide wire.

[0042] When the lifting drive member 360 drives the pressure plate 330 to move down to the base 320, the guide wire can be pressed down and positioned by the lifting drive member 360 directly according to the pressure value detected by the pressure sensor. In actual applications, in order to more accurately control the feed amount of the lifting drive member 360, the control origin of the lifting drive member 360 can be repositioned when the pressure plate 330 approaches the guide wire to eliminate the accumulated stroke error. Specifically, when the lifting drive member 360 drives the pressure plate 330 to resist the base 320, the lifting drive member 360 is configured to drive the pressure plate 330 to move upward until the pressure value detected by the pressure sensor is 0, and then drive the pressure plate 330 to move downward until the pressure sensor detects a preset pressure value. When the lifting drive 360 ​​drives the pressure plate 330 to press against the base 320, the pressure value detected by the pressure sensor changes. At this time, the lifting drive 360 ​​controls the pressure plate 330 to move upward until the pressure value detected by the pressure sensor is 0, so that the pressure plate 330 is in a state of approaching the guide wire, and then drives the pressure plate 330 to move downward, so that the pressure plate 330 reaches the required downward pressure on the guide wire. In this way, the downward pressure of the pressure plate 330 on the guide wire can be more accurately controlled, thereby meeting the performance test requirements of the guide wire.

[0043] In the above embodiment, the water supply pipe can be directly connected to the external water supply device. In this case, water can be added to the water tank 310 until it contacts the guide wire. In order to further improve the wetting effect on the guide wire, in this embodiment, a heater 370 and a water pump are provided in the water tank 310. The heater 370 is used to heat the water in the water tank 310. A water supply pipe is connected between the water pump and the water supply connector 340. The water tank 310 is filled with water for wetting the guide wire. After being heated to a set temperature by the heater 370, the water is pumped to the water supply connector 340 through the water supply pipe by the water pump, so that the water flows from the water outlet into the groove. At this time, the water supply to the groove can be continuously maintained so that the water in the groove is full, which better wets the guide wire. The water flowing out of the groove flows back into the water tank 310. This water recycling method can reduce water waste and improve the wetting effect on the guide wire.

[0044] A rotating drive source can be provided in the rotating mechanism to directly drive the first wire clamp 110 to rotate, and in order to facilitate the replacement of the first wire clamp 110, in the present embodiment, the rotating mechanism includes a motor 120 and a three-jaw chuck 130, and the motor 120 is connected to the three-jaw chuck 130, and the motor 120 can drive the three-jaw chuck 130 to rotate along the horizontal axis, and the three-jaw chuck 130 clamps the first wire clamp 110. When it is necessary to clamp the guide wire end, the first wire clamp 110 can be taken out first, and after the first wire clamp 110 is used to clamp and position the guide wire end, the first wire clamp 110 can be loaded into the three-jaw chuck 130 and clamped and fixed. Then, the motor 120 provides a rotational driving force to the three-jaw chuck 130, and a torque is applied to the guide wire for performance testing.

[0045] The first clamp 110 includes a clamp rod and a clamp cap. A channel for the guide wire to pass through is formed in the clamp rod. A plurality of slots are provided around the channel at the end of the clamp rod. The plurality of slots are respectively connected to the channel. The clamp cap is connected to the end of the clamp rod by a thread. The inner side of the clamp cap is provided with a tapered pressure section. When the clamp cap is tightened in the clamp rod, the pressure section is pressed against the outer position of the end of the clamp rod where the slot is provided. As the clamp cap is further tightened, the pressure of the pressure section on the end of the clamp rod gradually increases. The clamp rod is clamped and fixed by the three-jaw chuck 130. When the guide wire is clamped and positioned, the guide wire passes through the clamp cap and extends into the channel. The clamp cap is tightened on the clamp rod. At this time, the pressure of the pressure section on the end of the clamp rod gradually increases, so that the end of the clamp rod is elastically deformed toward the center of the channel, thereby clamping the guide wire. Similarly, the second clamp 220 has the same structure as the first clamp 110.

[0046] As a specific embodiment of the straightening mechanism, the straightening mechanism includes a translation drive 230, which drives the force tester 210. The translation drive 230 can drive the force tester 210 to move closer to or away from the first clamp 110. The translation drive 230 can be a cylinder, an electric screw or a hydraulic cylinder. The translation drive 230 can provide a driving force for the force tester 210 to move closer to or away from the first clamp 110. When the guide wire needs to be tested for performance, the translation drive 230 drives the power tester 210 to move away from the first clamp 110, pulls the guide wire to a straight state, and then continues to move away from the first clamp 110 to perform a performance test on the guide wire. After completion, the translation drive 230 drives the power tester 210 to return to the direction close to the first clamp 110.

[0047] In some embodiments, the bottom side of the water trough 310 is slidably connected to a slide rail 380, and the water trough 310 can be movable and locked between the first wire clamp 110 and the second wire clamp 220. In actual application, a slider is provided at the bottom side of the water trough 310, and the slider is connected with the slide rail 380. A locking screw can be passed through the slider, and the end of the locking screw is pressed against the slide rail 380 to lock the water trough 310 on the slide rail 380. When the locking screw leaves the slide rail 380, the water trough 310 can be slid on the slide rail 380. The water trough 310 can slide on the slide rail 380 to adjust the position of the water trough 310 relative to the first wire clamp 110 and the second wire clamp 220, which can facilitate the performance test of the guide wire at different positions. After completion, the water trough 310 is locked on the slide rail 380.

[0048] When testing the guidewire, different performance parameters are required, and different operation methods are used. Therefore, one end of the guidewire is fixed in the second wire clamp 220. According to the requirements of the guidewire performance test, the guidewire is compressed by the pressure plate 330 and then pulled, or the other end of the guidewire is clamped and then rotated, or the other end of the guidewire is clamped, the pressure plate 330 is used to compress the guidewire and then the guidewire is rotated.

[0049] As a first embodiment of the guidewire detection method, using the above-mentioned guidewire performance detection device, the following steps are included but are not limited to:

[0050] In step S110, the second clamp 220 clamps one end of the guide wire and guides the guide wire through the base 320. At this time, the guide wire extends on the base 320 in a direction away from the second clamp 220, so that when the pressing plate 330 presses the guide wire, the guide wire is in a straightened state.

[0051] In step S120, water at a preset temperature is supplied to the water supply connector 340. The water enters the water tank 310 from the water outlet and soaks the guidewire. The water supplied to the water supply connector 340 can be supplied from an external water supply device or circulated from the water tank 310 to the water supply connector 340.

[0052] In step S130, the pressing plate 330 moves downward, pressing the guidewire against the base 320. The lifting drive 360 ​​provides a driving force for the pressing plate 330 to move downward, driving the pressing plate 330 to move downward onto the base 320. In actual testing, the amount by which the lifting drive plate drives the pressing plate 330 downward can be controlled based on the requirements for the guidewire friction performance test, so that the pressing plate 330 provides the required pressing force on the guidewire.

[0053] In step S140, the second wire gripper 220 moves away from the base 320, and the force tester 210 measures the tension of the guide wire. As the second wire gripper 220 moves away from the base 320, the tension of the guide wire measured by the force tester 210 gradually increases until it reaches a peak value, at which point the peak tension of the guide wire can be measured.

[0054] In this guidewire detection method, the friction performance of the guidewire is tested. At this time, the first wire clamp 110 does not need to clamp the guidewire. The guidewire is guided through the top side of the base 320, and one end of the guidewire is clamped and fixed using the second wire clamp 220. During the test, the pressure plate 330 is used to press the guidewire and position it on the base 320, and the force tester 210 moves in a direction away from the base 320 to tighten the guidewire. At this time, the force tester 210 tests the friction performance of the guidewire by detecting the pulling force value on the guidewire.

[0055] As a second embodiment of the guidewire detection method, using the above-mentioned guidewire performance detection device, the following steps are included but are not limited to:

[0056] In step S210 , the first clamp 110 and the second clamp 220 clamp the two ends of the guide wire respectively. After the two ends of the guide wire are fixed and straightened by the first clamp 110 and the second clamp 220 , the guide wire passes through the top side of the base 320 .

[0057] In step S220, water at a preset temperature is supplied to the water supply connector 340. The water enters the water tank 310 from the water outlet and soaks the guidewire. The water supplied to the water supply connector 340 can be supplied from an external water supply device or circulated from the water tank 310 to the water supply connector 340.

[0058] In step S230, the first gripper 110 rotates, and the force tester 210 measures the torque value of the guidewire. The motor 120 provides a rotational driving force to the first gripper 110, and the first gripper 110 provides a torsional force from one end of the guidewire. At this time, the force tester 210 can measure the torque value of the guidewire.

[0059] In this guidewire detection method, the torque performance of the guidewire is tested. At this time, the first clamp 110 and the second clamp 220 clamp the two ends of the guidewire respectively, and then the first clamp 110 rotates, and the force tester 210 tests the torque value of the guidewire, thereby testing the torque performance of the guidewire.

[0060] As a third embodiment of the guidewire detection method, using the above-mentioned guidewire performance detection device, the following steps are included but are not limited to:

[0061] In step S310 , the first clamp 110 and the second clamp 220 clamp the two ends of the guide wire respectively. After the two ends of the guide wire are fixed and straightened by the first clamp 110 and the second clamp 220 , the guide wire passes through the top side of the base 320 .

[0062] In step S320, water at a preset temperature is supplied to the water supply connector 340. The water enters the water tank 310 from the water outlet and soaks the guidewire. The water supplied to the water supply connector 340 can be supplied from an external water supply device or circulated from the water tank 310 to the water supply connector 340.

[0063] In step S330, the pressing plate 330 moves downward, pressing the guidewire against the base 320. The lifting drive 360 ​​provides a driving force for the pressing plate 330 to move downward, driving the pressing plate 330 to move downward onto the base 320. In actual testing, the amount by which the lifting drive plate drives the pressing plate 330 downward can be controlled based on the requirements for the guidewire torque and friction performance testing, so that the pressing plate 330 provides the required pressing force on the guidewire.

[0064] In step S340, the first gripper 110 rotates, and the force tester 210 measures the torque friction value of the guidewire. The motor 120 provides a rotational driving force to the first gripper 110, and the first gripper 110 provides a torque from one end of the guidewire. At this time, the force tester 210 can measure the torque friction value of the guidewire.

[0065] In this guidewire detection method, the torque friction performance of the guidewire is tested. At this time, the first wire clamp 110 and the second wire clamp 220 clamp the two ends of the guidewire respectively, and the pressure plate 330 presses the guidewire to position it on the base 320. Then, the first wire clamp 110 is rotated, and the torque friction force of the guidewire is tested by the force tester 210, thereby testing the torque friction performance of the guidewire.

[0066] The above specifically describes the preferred embodiments of the present invention, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. Guidewire performance testing equipment, characterized by: include: A rotating mechanism having a first wire clamp (110) rotatable along a horizontal axis; A straightening mechanism having a force tester (210) movable in a direction approaching or away from the first wire clamp (110), wherein a second wire clamp (220) is provided at a testing end of the force tester (210); The clamping mechanism comprises a water tank (310), a base (320), a pressure plate (330) and a water supply connector (340), wherein the water tank (310) is located between the first wire clamp (110) and the second wire clamp (220), the base (320) is arranged in the water tank (310), the top side of the base (320) is provided with a groove, the pressure plate (330) is located above the base (320), the pressure plate (330) can move downward toward the top side of the base (320) or upward away from the base (320), the water supply connector (340) is connected to the pressure plate (330), the bottom side of the pressure plate (330) is provided with a water outlet hole connected to the water supply connector (340), the clamping mechanism comprises a fixing frame (350) connected to the water tank (310), a fixing frame (350) connected to the fixing frame ( The lifting drive member (360) is connected to the pressing plate (330), and the pressing plate (330) is provided with a pressure sensor. The pressure sensor is used to detect the downward pressure of the pressing plate (330). When the lifting drive member (360) drives the pressing plate (330) to abut against the base (320), the lifting drive member (360) is configured to drive the pressing plate (330) to move upward until the pressure value detected by the pressure sensor is 0, and then drive the pressing plate (330) to move downward until the pressure sensor detects a preset pressure value. A heater (370) and a water pump are provided in the water tank (310). The heater (370) is used to heat the water in the water tank (310). A water supply pipe is connected between the water pump and the water supply connector (340).

2. The guidewire performance testing device according to claim 1, characterized in that: The rotating mechanism comprises a motor (120) and a three-jaw chuck (130), wherein the motor (120) is transmission-connected to the three-jaw chuck (130), and the motor (120) can drive the three-jaw chuck (130) to rotate along a horizontal axis, and the three-jaw chuck (130) clamps the first wire clamp (110).

3. The guidewire performance testing device according to claim 1, characterized in that: The straightening mechanism comprises a translation drive member (230), wherein the translation drive member (230) is connected to the force tester (210) for driving, and the translation drive member (230) can drive the force tester (210) to move closer to or away from the first wire clamp (110).

4. The guidewire performance testing device according to claim 1, characterized in that: The bottom side of the water tank (310) is slidably connected to a slide rail (380), and the water tank (310) can move and be locked between the first wire clamp (110) and the second wire clamp (220).

5. A guidewire testing method, using the guidewire performance testing device according to any one of claims 1 to 4, characterized in that: include: The second wire clamp (220) clamps one end of the guide wire and guides the guide wire through the base (320); Supplying water having a preset temperature to the water supply connector (340), the water entering the water tank (310) from the water outlet and soaking the guide wire; The pressing plate (330) moves downward to press the guide wire tightly against the base (320); The second wire clamp (220) moves in a direction away from the base (320), and the force tester (210) measures the tension value of the guide wire.

6. A guidewire testing method, using the guidewire performance testing device according to any one of claims 1 to 4, characterized in that: include: The first wire clamp (110) and the second wire clamp (220) respectively clamp the two ends of the guide wire; Supplying water having a preset temperature to the water supply connector (340), the water entering the water tank (310) from the water outlet and soaking the guide wire; The first wire clamp (110) rotates, and the force tester (210) measures the torque value of the guide wire.

7. A guidewire testing method using the guidewire performance testing device according to any one of claims 1 to 4, characterized in that: The first wire clamp (110) and the second wire clamp (220) respectively clamp the two ends of the guide wire; Supplying water having a preset temperature to the water supply connector (340), the water entering the water tank (310) from the water outlet and soaking the guide wire; The pressing plate (330) moves downward to press the guide wire tightly against the base (320); The first wire clamp (110) rotates, and the force tester (210) measures the torque friction value of the guide wire.

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