CN218674569U - Guide wire bending test device - Google Patents

Abstract

The utility model provides a seal wire bending test device, include: a drive motor; a turntable driven by the driving motor; the turntable is provided with a driving shaft hole and at least one follow-up shaft hole which are horizontally arranged, the driving shaft hole is positioned at the rotation center of the turntable, and the follow-up shaft hole and the driving shaft hole keep a distance and are parallel to each other; the driving shaft is mounted in the driving shaft hole; the follow-up shaft is arranged in one follow-up shaft hole; wherein a gap is reserved between the follow-up shaft and the driving shaft, and the gap is larger than the diameter of a guide wire; and the guide wire fixing device is arranged above the driving shaft and used for fixing the end part of the guide wire. The utility model provides a seal wire bending test device drives the follow-up shaft through the rotation of carousel and rotates round the driving shaft to satisfy the experimental requirement of anti bending test.

Description

Guide wire bending test device

Technical Field

The utility model relates to an intervention formula medical instrument field especially relates to a seal wire bending test device.

Background

The guide wire is a common instrument in the field of interventional medical treatment, is the key for successful interventional operation, and has quite large use amount and wide use range. The guide wire is mainly used for guiding the instrument into blood, urinary system and digestive system, helping the instrument selectively enter tiny blood vessel branches or other lesion lacunae, and is an important accessory for replacing the related instrument in operation.

In the process of interventional therapy of the guide wire, the interventional path is usually a bent, turning and other tortuous structure path, so that strict requirements on the flexibility of the guide wire are provided, and the bending resistance of the guide wire is generally required to be tested.

The bend damage resistance test method in the guide wire performance test standard is to repeatedly subject the guide wire to reverse bending and straightening, and then to check for damage and coating spalling. As the standard only specifies the carrier material and the bending shape of the guide wire and makes requirements, and does not specify automation or manual operation, and the guide wire has various specifications and sizes, the device has poor controllability and operability and fussy and uniform operation during product inspection.

When the bending rupture resistance of the guide wire is tested in a manual mode, the consistency of the bending position of each time is not easy to guarantee during manual bending, the consistency of the bending angle of each time cannot be avoided, the operation is also uncontrollable, and the repeatability and the accuracy of the test are greatly reduced.

When the bending rupture resistance of the guide wire is tested by adopting the test device, the existing device is transversely tested, the guide wire cannot be strictly reduced in the standard, the guide wire is required to be tangent to two cylinders when being bent for 90 degrees, a force with a certain upward angle is applied to the guide wire, the stress on the contact surface of the guide wire and the cylinders is overlarge, and the test requirement is violated.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a technical problem that will solve lies in, provides a seal wire bending test device, can strictly carry out the anti bending test of seal wire according to the crooked requirement of predetermined angle.

In order to solve the technical problem, the utility model provides a seal wire bending test device, include:

a drive motor;

a turntable driven by the driving motor; the turntable is provided with a driving shaft hole and at least one follow-up shaft hole which are horizontally arranged, the driving shaft hole is positioned at the rotation center of the turntable, and the follow-up shaft hole and the driving shaft hole keep a distance and are parallel to each other;

the driving shaft is mounted in the driving shaft hole;

the follow-up shaft is arranged in one follow-up shaft hole; wherein a gap is reserved between the follow-up shaft and the driving shaft, and the gap is larger than the diameter of a guide wire;

and the guide wire fixing device is arranged above the driving shaft and used for fixing the end part of the guide wire.

Optionally, when the number of the follow-up shaft holes is more than two, the distance between each follow-up shaft hole and the driving shaft hole is unequal;

each follow-up shaft hole is arranged on the turntable and the driving shaft hole are distributed in a cross shape, a straight line shape, a T shape or an L shape.

Alternatively, a plurality of replacement shafts are arranged for the drive shaft, and the replacement shafts have a different shaft diameter from the drive shaft.

Alternatively, a plurality of replacement shafts are arranged for the follower shaft, and the replacement shafts have a different shaft diameter from the follower shaft.

Optionally, the follower shaft includes a shaft core and a shaft barrel mounted on the shaft core by a bearing such that the shaft barrel is rotatable relative to the shaft core.

The utility model also provides a seal wire bending test device, include:

a drive motor;

a turntable driven by the driving motor; a first rotating shaft and a second rotating shaft which are horizontally arranged and are parallel to each other are arranged on the turntable, and a gap with a preset distance is reserved between the first rotating shaft and the second rotating shaft;

and the guide wire fixing device is arranged above the first rotating shaft and the second rotating shaft and used for fixing the end part of the guide wire.

Optionally, the position of the first rotating shaft on the rotating disc is adjustable to change the size of the gap between the first rotating shaft and the second rotating shaft.

Optionally, the first rotating shaft is fixed in a sliding groove on the rotating disc, and distances between different positions of the sliding groove and the second rotating shaft are different.

Alternatively, the sliding groove is linear or arc-shaped.

Optionally, the second rotating shaft is located at a rotating center of the turntable.

Optionally, the first rotating shaft comprises a shaft core and a shaft barrel, and the shaft barrel is mounted on the shaft core through a bearing, so that the shaft barrel can rotate relative to the shaft core.

Optionally, the method further comprises:

and the corner detection device is used for detecting the rotation angle of the turntable.

Alternatively, the rotation angle detecting device includes:

the photoelectric sensor is arranged on the side of the turntable and can detect the rotation angle of the turntable;

the sensing part is arranged on the side face of the rotary disc, and when the rotary disc rotates, the sensing part can rotate to the photoelectric sensor to trigger the photoelectric sensor.

Optionally, the number of the induction parts is at least 2, and the adjacent two induction parts are spaced by 90 ° azimuth angles on the circumference of the turntable.

Optionally, the method further comprises:

and the controller is used for receiving the detection signal detected by the corner detection device so as to judge whether the rotating angle of the turntable reaches 90 degrees or not, and when the rotating angle of the turntable reaches 90 degrees, the controller sends a control signal to the driving motor so as to control the driving motor to stop.

Optionally, the controller is further configured to control the driving motor to rotate in a reverse direction to reset the turntable; at the same time, the number of cycles n +1 is recorded.

Optionally, the guide wire fixing device can move transversely relative to the driving shaft in the horizontal direction, so that the guide wire can be adjusted in position and aligned to be right above the gap.

Optionally, the turntable further comprises a box body, the box body is used for accommodating the driving motor, a driving shaft hole is formed in the side face of the box body, and the turntable is arranged outside the driving shaft hole and connected with a driving shaft in the driving shaft hole;

correspondingly, the guide wire fixing device comprises a sliding block and a moving rod, wherein the sliding block is arranged in the box body and can transversely move in the horizontal direction.

Optionally, a guide wire fixing hole is formed in the moving rod, and the guide wire is fixed in the guide wire fixing hole through a fixing structure;

correspondingly, the photoelectric sensor is fixed on the box body.

Optionally, the fixing structure comprises an adjusting screw, a pressure plate or a clamping block.

Optionally, the device further comprises a speed reducer arranged in the box body, and the speed reducer is connected with the driving shaft and the driving motor.

The display screen is a touch screen;

the controller is connected with the driving motor; the controller includes a bluetooth module.

Implement the utility model discloses, following beneficial effect has:

1. the utility model provides a crooked test device of seal wire through the mode of placing the seal wire perpendicularly, can strictly carry out the requirement of 90 detections of seal wire bending in the national standard, makes seal wire and cylinder tangent, improves the degree of accuracy that detects.

2. The utility model provides a seal wire bending test device can guarantee that the crooked position of at every turn test is unanimous, and bending angle is unanimous at every turn, also uncontrollable in the operation, experimental repeatability and the accuracy of significantly reducing.

3. The utility model provides a seal wire bending test device can select suitable driving shaft and follower spindle according to the seal wire of different models to the seal wire test requirement of different specifications is adapted to.

4. The utility model provides a seal wire bending test device carries out automated control through mechanical structure, reduces the manual operation step, avoids human error, has guaranteed the accuracy nature of inspection result.

5. The utility model provides a seal wire bending test device, different slew velocity of accessible procedure settlement and test number of times to adapt to different test requirements.

6. The utility model provides a seal wire bending test device drives the follow-up shaft through the rotation of carousel and rotates round the driving shaft to satisfy the experimental requirement of anti bending test.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application and are not to be construed as limiting the application.

Fig. 1 is a schematic overall structure diagram of a guide wire bending test device provided by an embodiment of the present invention;

fig. 2 is a schematic front structural view of a guide wire bending test device provided by an embodiment of the present invention;

fig. 3 is a schematic side view of a guide wire bending test device according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a three-dimensional view of a guide wire bending test device provided in an embodiment of the present invention;

fig. 5 is a schematic structural view of another guide wire bending test device provided in the present invention.

Reference numerals in the drawings:

10-a turntable; 11-driving shaft hole; 12-follow-up shaft hole;

20-a drive shaft;

30-a follower shaft;

40-a guide wire fixation device; 41-a slide block; 42-a travel bar; 43-guidewire fixation holes; 44-an adjusting nut;

50-a box body; 51-a photosensor; 52-a drive shaft; 53-inductive components;

60-guide wires;

70-a first rotating shaft; 71-a chute; 80-second axis of rotation.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1-4, this embodiment provides a seal wire bending test device, including box 50, driving motor (be located box 50, not shown in the figure), carousel 10, seal wire fixing device 40 and install driving shaft 20 and follower shaft 30 on carousel 10, the utility model provides a seal wire bending test device, the rotation through carousel 10 drives follower shaft 3 (follower shaft and follower shaft what relation) and rotates round driving shaft 20 to satisfy the experimental requirement of anti bending test. The utility model provides a seal wire bending test device takes vertical direction test, and the heavy thing of loading guarantees that sample and driving shaft are tangent, is 90 when guaranteeing to be crooked after the test, and the seal wire can be tangent in the diaxon when guaranteeing 90 simultaneously, and is unanimous with the standard requirement. When the guide wire 60 works, a proper weight (such as a weight, aiming at enabling the guide wire to naturally fall by gravity and slightly lean against one side of the driving shaft or the driven shaft) is hung at the bottom of the guide wire 60, the test part of the guide wire can rotate along with the driving shaft and the driven shaft, when the guide wire bends to 90 degrees, the sensor automatically senses and stops bending, and the top of the guide wire 60 is fixed by the guide wire fixing device 40, so that the same bending position can be ensured at each time, and the test effectiveness is improved.

The specific design of each structure therein is as follows:

the turntable 10 is driven by a driving motor; a driving shaft hole 11 and a plurality of follow-up shaft holes 12 which are horizontally arranged are arranged on the rotary table 10, the driving shaft hole 11 is positioned at the rotation center of the rotary table 10, and the follow-up shaft holes 12 and the driving shaft hole 11 keep a distance and are parallel to each other; in an extreme case, only 1 follow-up shaft hole can be arranged on the turntable 10;

the driving shaft 20 is installed in the driving shaft hole 11;

a follower shaft 30 installed in one of the follower shaft holes 12, the driving shaft 20 and the follower shaft 30 being parallel to each other since the driving shaft hole 11 and the follower shaft hole 12 are parallel to each other; wherein, a gap is reserved between the follow-up shaft 30 and the driving shaft 20, and the gap is larger than the diameter of the guide wire 60, so that the guide wire 60 can pass through the gap between the driving shaft 20 and the follow-up shaft 30;

the turntable 10 can rotate under the driving of the driving motor, and the turntable can provide an installation space for the driving shaft 20 and the follower shaft 30, so that the rotation of the turntable 10 can drive the follower shaft 30 to rotate around the driving shaft 20;

and a guide wire fixing device 40 disposed above the driving shaft 20 for fixing an end of the guide wire 60.

When the number of the follower shaft holes 12 is two or more, the distances between the follower shaft holes 12 and the drive shaft hole 11 are different. Therefore, the driving shaft 20 and the following shaft 30 with different diameters can be selected according to different specifications of the guide wire 60 to be tested, and the following shaft 30 is installed in different following shaft holes 12 according to different distances between the driving shaft hole 11 and the following shaft hole 12, so that the gap between the driving shaft 20 and the following shaft 30 meets the test requirement of the guide wire 60.

The turntable 10, the main shaft 20 and the follow-up shaft 30 are separated, the types of the driving shaft 2 and the follow-up shaft 30 corresponding to the types of the guide wire 60 are arranged in order to adapt to different types of the guide wire, and when a test is needed, the appropriate driving shaft 20 and the appropriate follow-up shaft 30 are directly selected to be replaced without replacing the turntable 10. When necessary, the turntable 10, the driving shaft 20 and the follow-up shaft 30 can be integrated, the specification corresponding to the type of the guide wire 60 is set according to the type of the guide wire, and when a test is required, the proper turntable can be directly selected to be replaced according to the specification of the guide wire.

When the number of the follow-up shaft holes 12 is more than four, the follow-up shaft holes 12 are distributed on the turntable 10 in a cross shape, a straight shape, a T shape or an L shape. Usually, the follower shaft holes 12 are arranged on the turntable 10 in a cross shape, so that different follower shaft holes 12 can be arranged dispersedly, the difference of the azimuth angles is 90 degrees, and the bending test requires 90 degrees of rotation, so that the guide wires 60 with different specifications can be tested more conveniently, and the turntable does not need to be readjusted when the guide wires 60 with different specifications are tested.

The guide wire bending test device provided by the embodiment further includes a photoelectric sensor 51, and the photoelectric sensor 51 is arranged at the side of the turntable 10 and can detect the rotation angle of the turntable 10; correspondingly, a sensing part 53 is provided at the side of the turntable 10, and when the turntable 10 rotates, the sensing part 53 can rotate to the photoelectric sensor 51 to trigger the photoelectric sensor 51. The photoelectric sensor 51 detects the rotation angle of the turntable 10, so that the detection of the rotation angle of the turntable 10 can be more accurate.

Further preferably, the number of the sensing parts 53 is at least 2, the sensing parts are distributed on the circumference of the turntable 10, and the adjacent two sensing parts 53 are spaced at an azimuth angle of 90 ° on the circumference of the turntable 10.

It is further preferable that the guide wire bending test apparatus provided in this embodiment further includes a controller (not shown in the figure) for receiving a signal from the photosensor 51 to determine whether the angle rotated by the rotary disk 10 reaches 90 °, and when the angle rotated by the rotary disk 10 reaches 90 °, the controller sends a control signal to the driving motor to control the driving motor to stop.

The controller is also used for controlling the driving motor to rotate reversely, and when the signal of the photoelectric sensor 51 is received again and the reverse rotation angle is judged to reach 90 degrees, a control signal is sent to the driving motor to control the driving motor to stop; at this time, it is considered that one bending test is completed, the number of cycles n +1 is recorded, the bending test of one guide wire 60 can be completed after the number of cycles required for the bending test is reached, the guide wire 60 is detached, and the test result of the guide wire 60 is checked.

It is further preferable that the guide wire bending test device provided in the present embodiment is configured such that the guide wire fixing device 40 can be moved laterally in the horizontal direction with respect to the main shaft 20, so that the guide wire can be positioned and aligned directly above the gap through which the guide wire passes.

The guide wire bending test device provided by the embodiment further includes a box 50, the box 50 is generally a square structure, the inside of the box 50 has a receiving space for receiving a driving motor, and a driving shaft hole is formed in a side surface of the box 50, the turntable 10 is arranged outside the driving shaft hole and is coaxially connected with a driving shaft 52 in the driving shaft hole;

correspondingly, the guide wire fixing device 40 comprises a sliding block 41 and a moving rod 42, wherein the sliding block 41 is arranged in the box body 50 and can transversely move in the horizontal direction relative to the driving shaft 20, so that the guide wire 60 is ensured to be tangent to the side surface of the driving shaft 20; the movable rod 42 is parallel to the driving shaft 20, a guide wire fixing hole 43 is arranged on the movable rod 42, and a guide wire 60 is fixed in the guide wire fixing hole 43 through an adjusting nut 44; the adjusting nut 44 may be designed to be easily manually operated, for example, with a large manual knob, and may be provided with a flat surface at the front end of the screw rod of the adjusting nut 44 to press on the guide wire 60, or may be pressed on the guide wire 60 by an auxiliary pressing member (for example, a pressing plate) or the like, so as to fix the guide wire 60.

Correspondingly, the photoelectric sensor 51 is fixed on the box 50, and the position of the photoelectric sensor 51 is kept unchanged, so that the control of the rotation precision of the turntable 10 can be satisfied.

Further, it may be optimally designed that the guide wire bending test device provided by the embodiment further includes a speed reducer, which is disposed in the box 50, and the speed reducer is connected to the driving shaft 52 and the driving motor.

Further, the guide wire bending test device provided by the present embodiment has a plurality of driving shafts 20, and each driving shaft 20 has a different shaft diameter; the follower shaft 30 has a plurality, each follower shaft 30 includes a shaft core and a shaft tube, the shaft tube is mounted on the shaft core through a bearing, and the diameter of the shaft tube on different follower shafts 30 is different. By selecting different diameters of the driving shaft 20 and the driven shaft 30, different diameters of the guide wire 60 and different bending requirements can be detected. Because the follow-up shaft 30 adopts the shaft barrel structure design, the shaft barrel can rotate relative to the shaft core, thereby reducing friction between the guide wire 60 and the surface of the follow-up shaft 12 and reducing damage to the surface of the guide wire 60 in the process that the follow-up shaft 30 rotates around the driving shaft 20.

As shown in fig. 5, the embodiment of the present invention further provides a guide wire bending test apparatus, which includes a driving motor, a turntable 10 and a guide wire fixing device 40; wherein: the turntable 10 is driven by a driving motor; the turntable 10 is provided with a first rotating shaft 70 and a second rotating shaft 80 which are horizontally arranged and are parallel to each other, a gap with a preset distance is reserved between the first rotating shaft 70 and the second rotating shaft 80 so as to allow a guide wire to pass through the gap, and the width of the gap is generally 2-3 times of the diameter of the guide wire; the guide wire fixing device 40 is disposed above the first rotating shaft 70 and the second rotating shaft 80, and is used for fixing the end of the guide wire 60. The first rotating shaft 70 and the second rotating shaft 80 can be connected by a fixed connection manner (such as welding or nut connection), so that the positions of the first rotating shaft 70 and the second rotating shaft 80 on the rotating disk 10 are fixed, but one or both of the rotating shafts can be set to be in a position-adjustable structure according to the use requirement.

Optionally, the position of the first rotating shaft 70 on the rotating disk 10 is adjustable to change the gap between the first rotating shaft 70 and the second rotating shaft 80. Because the position of the first rotating shaft 70 is adjustable, the adjustment of the size of the gap between the two rotating shafts can be realized, and the guide wire test requirements of different diameters can be met.

The first rotating shaft 70 is fixed in a sliding groove 71 on the rotating disc 10, and the first rotating shaft 70 is fixed on the rotating disc 10 through an auxiliary fixing structure, wherein the distances between different positions of the sliding groove 71 and the second rotating shaft 80 are different. The chute 71 may be linear or arcuate or other shape.

The second rotating shaft 80 is located at the rotating center of the rotating disc 10, so that after the position of the guide wire adjusted by the guide wire fixing device 40 is tangent to the second rotating shaft 80, in the process that the rotating disc 10 drives the first rotating shaft 70 and the second rotating shaft 80 to rotate, the relative position between the guide wire fixing end on the guide wire fixing device 40 and the second rotating shaft 80 is kept unchanged, and the testing accuracy is improved.

The first rotating shaft 70 includes a shaft core and a shaft barrel mounted on the shaft core through a bearing so that the shaft barrel can rotate relative to the shaft core. Therefore, in the process that the turntable 10 drives the first rotating shaft 70 and the second rotating shaft 80 to rotate, the first rotating shaft 70 can rotate, so that excessive friction between the first rotating shaft 70 and the guide wire is avoided, the friction damage of repeated reciprocating tests to the guide wire and the first rotating shaft 70 is reduced, the test precision is ensured, and the service life of the first rotating shaft 70 can be prolonged.

Optionally, the guide wire bending test device provided by the above embodiment further includes a display screen, where the display screen is a touch screen, so that touch control is possible;

optionally, the guide wire bending test device provided in the above embodiment further includes a controller, configured to be connected to the driving motor; the controller comprises a Bluetooth module, so that the controller can be connected with communication equipment such as a mobile phone and the like to realize remote control.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (22)

1. A guidewire bending test device, comprising:

a drive motor;

a turntable (10) driven by the drive motor; the turntable (10) is provided with a driving shaft hole (11) and at least one follow-up shaft hole (12) which are horizontally arranged, the driving shaft hole (11) is positioned at the rotation center of the turntable (10), and the follow-up shaft hole (12) and the driving shaft hole (11) keep a distance and are parallel to each other;

a drive shaft (20) mounted in the drive shaft hole (11);

a follower shaft (30) mounted in one of the follower shaft holes (12); wherein a gap is reserved between the follow-up shaft (30) and the drive shaft (20), and the gap is larger than the diameter of a guide wire (60);

and the guide wire fixing device (40) is arranged above the driving shaft (20) and is used for fixing the end part of the guide wire (60).

2. The guidewire bending test device of claim 1,

when the number of the follow-up shaft holes (12) is more than two, the distance between each follow-up shaft hole (12) and the driving shaft hole (11) is unequal;

the follow-up shaft holes (12) are distributed on the turntable (10) and the driving shaft hole (11) in a cross shape, a straight shape, a T shape or an L shape.

3. The guidewire bend trial device of claim 1,

a plurality of replacement shafts are arranged for the main drive shaft (20), and the replacement shafts have different shaft diameters from the main drive shaft.

4. The guidewire bending test device of claim 1,

a plurality of replacement shafts are arranged for the follower shaft (30), and the replacement shafts have a different shaft diameter from the follower shaft (30).

5. The guidewire bending test device of claim 1,

the follow-up shaft (30) comprises a shaft core and a shaft barrel, and the shaft barrel is mounted on the shaft core through a bearing, so that the shaft barrel can rotate relative to the shaft core.

6. The guidewire bending test device of any one of claims 1-5,

the guide wire fixing device (40) can move transversely relative to the driving shaft (20) in the horizontal direction, so that the guide wire can be adjusted in position and aligned to be right above the gap.

7. The guidewire bending test device of claim 6,

the display screen is a touch screen;

the controller is connected with the driving motor; the controller includes a bluetooth module.

8. A guidewire bending test device, comprising:

a drive motor;

the rotary table (10) is driven to rotate by the driving motor; a first rotating shaft (70) and a second rotating shaft (80) which are horizontally arranged and are parallel to each other are arranged on the turntable (10), and a gap with a preset distance is reserved between the first rotating shaft (70) and the second rotating shaft (80);

and the guide wire fixing device (40) is arranged above the first rotating shaft (70) and the second rotating shaft (80) and is used for fixing the end part of the guide wire (60).

9. The guidewire bending test device of claim 8,

the position of the first rotating shaft (70) on the rotating disc (10) is adjustable, so that the size of a gap between the first rotating shaft (70) and the second rotating shaft (80) is changed.

10. The guidewire bending test device of claim 9,

the first rotating shaft (70) is fixed in a sliding groove (71) on the rotating disc (10), and the distances between different positions of the sliding groove (71) and the second rotating shaft (80) are different.

11. The guidewire bending test device according to claim 10, wherein the chute (71) is linear or arcuate.

12. The guidewire bend trial device of claim 8,

the second rotating shaft (80) is positioned at the rotating center of the rotating disc (10).

13. The guidewire bending test device of claim 8,

the first rotating shaft (70) comprises a shaft core and a shaft barrel, wherein the shaft barrel is mounted on the shaft core through a bearing, so that the shaft barrel can rotate relative to the shaft core.

14. The guidewire bending test device of any one of claims 1-13,

further comprising:

and the corner detection device is used for detecting the rotation angle of the turntable.

15. The guidewire bending test device of claim 14,

the rotation angle detection device includes:

a photoelectric sensor (51) which is provided on the side of the turntable (10) and can detect the rotation angle of the turntable (10);

the sensing part (53) is arranged on the side face of the turntable (10), and when the turntable (10) rotates, the sensing part (53) can rotate to the photoelectric sensor (51) to trigger the photoelectric sensor (51).

16. The guidewire bending test device of claim 15,

the number of the induction parts (53) is at least 2, and the adjacent two induction parts are spaced at an azimuth angle of 90 degrees on the circumference of the turntable (10).

17. The guidewire bending test device of claim 14,

further comprising:

and the controller is used for receiving the detection signal detected by the corner detection device so as to judge whether the rotating angle of the turntable (10) reaches 90 degrees or not, and when the rotating angle of the turntable (10) reaches 90 degrees, the controller sends a control signal to the driving motor so as to control the driving motor to stop.

18. The guidewire bending test device of claim 17,

the controller is also used for controlling the driving motor to rotate reversely to reset the turntable; at the same time, the number of cycles n +1 is recorded.

19. The guidewire bending test device of any one of claims 1-13,

the turntable is characterized by further comprising a box body (50) used for accommodating the driving motor, a driving shaft hole is formed in the side face of the box body (50), and the turntable (10) is arranged on the outer side of the driving shaft hole and connected with a driving shaft (52) in the driving shaft hole;

correspondingly, the guide wire fixing device (40) comprises a sliding block (41) and a moving rod (42), wherein the sliding block (41) is arranged in the box body (50) and can move transversely in the horizontal direction.

20. The guidewire bending test device of claim 19,

a guide wire fixing hole (43) is formed in the moving rod (42), and the guide wire (60) is fixed in the guide wire fixing hole (43) through a fixing structure (44);

the photoelectric sensor (51) is fixed on the box body (50).

21. The guidewire bending test device of claim 20,

the fixing structure comprises an adjusting screw, a pressing plate or a clamping block.

22. The guidewire bending test device of claim 19,

the gearbox also comprises a speed reducer which is arranged in the box body (50), and the speed reducer is connected with the driving shaft (52) and the driving motor.

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