Device for measuring distance from external diameter gradual change position to end face of guide wire

Abstract

The utility model provides a device for measuring the distance from the outer diameter gradient position to the end face of a guide wire, and relates to the technical field of medical instrument measuring devices.The device comprises a laser outer diameter measuring instrument, a bottom plate, a supporting block, a first steel ruler, a clamping base and a pushing assembly.The laser outer diameter measuring instrument measures the outer diameter of the guide wire, the outer diameter gradient position of the guide wire is determined, and the distance between the outer diameter gradient position and the end face of the guide wire is measured. The supporting block is provided with an avoiding groove corresponding to the laser measurement area in position, the zero scale position of the first steel ruler is located on the edge portion of the first side of the avoiding groove, the extending direction of the first steel ruler is perpendicular to the laser measurement area, the clamping assembly clamps the guide wire, and the moving end of the pushing assembly is connected with the clamping base. The pushing assembly drives the clamping base, the clamping assembly and the guide wire to move in the direction perpendicular to the laser measuring area, and after the laser outer diameter measuring instrument determines the outer diameter gradual change position of the guide wire, the length of the small-diameter section and / or the large-diameter section of the guide wire can be determined through the degree of the first steel ruler.

Description

Technical Field

[0001] The present application relates to the technical field of medical device measuring devices, and in particular to a device for measuring the distance from a gradual change position of the outer diameter of a guide wire to an end face. Background Art

[0002] A guidewire is a medical device that is mainly used to guide other instruments into the lumen of the human body, such as blood vessels, ureters, etc. The guidewire is usually made of metal or polymer materials, is flexible and bendable, and can pass through narrow lumens. One end of the guidewire usually has a soft tip to reduce damage to the lumen wall, and the other end is connected to a handle for the doctor to operate.

[0003] The guide wire has a thin front end and a thick back end. It enters the human body and plays a guiding role. Figure 1 As shown, the guidewire includes a thin diameter segment A, a variable diameter segment B, and a thick diameter segment C connected in sequence. During use, the length of segment A or segment C needs to be measured to determine whether the length meets the technical numerical requirements. Since the guidewire is slender in shape and its outer diameter is less than one millimeter, the variable diameter segment B is not obvious, making it difficult to determine the position of the variable diameter segment B by manual measurement, and thus it is difficult to accurately measure the length of the thin diameter segment A or the thick diameter segment C. Utility Model Content

[0004] The embodiment of the present application provides a device for measuring the distance from the gradual change position of the outer diameter of a guide wire to the end face. The outer diameter of the guide wire is accurately determined by a laser outer diameter measuring instrument, and the diameter change position is accurately determined. Finally, the distance from the gradual change position of the outer diameter of the guide wire to the end face is measured by a steel ruler. This solves the problem of manual measurement of the guide wire, which makes it difficult to determine the position of the diameter change section and to accurately measure the length of the thin diameter section or the thick diameter section of the wire.

[0005] The embodiment of the present application provides a device for measuring the distance from the gradual change position of the outer diameter of a guide wire to the end face, comprising a laser outer diameter measuring instrument, a base plate, a support block arranged on the base plate, a first steel ruler, a clamping seat and a pushing assembly;

[0006] A slot body is provided in the middle of the laser outer diameter measuring instrument, and a laser emitting end and a laser receiving end are provided on two sides of the slot body opposite to each other, and a laser measuring area is formed between the laser emitting end and the laser receiving end;

[0007] One end of the bottom plate is connected to the slot body of the laser outer diameter measuring instrument, the support block is arranged on the bottom plate, the support block is provided with an avoidance groove corresponding to the position of the laser measuring area, the width of the avoidance groove is consistent with the width of the position of the laser measuring area, the first steel ruler is fixedly arranged on the upper surface of the support block and is located on the first side of the avoidance groove, the zero scale position of the first steel ruler is located at the edge of the first side of the avoidance groove, and the extension direction of the first steel ruler is perpendicular to the laser measuring area;

[0008] The clamping seat and the pushing assembly are both arranged on the base plate. The clamping seat is provided with a clamping assembly, and the clamping assembly clamps the guide wire. The moving end of the pushing assembly is connected to the clamping seat. The pushing assembly drives the clamping seat, the clamping assembly and the guide wire to move in a direction perpendicular to the laser measurement area.

[0009] In a feasible implementation, the device further includes a second steel ruler;

[0010] The second steel ruler is arranged on the upper surface of the support block and is located on the second side of the avoidance groove. The zero scale position of the second steel ruler is located on the edge of the second side of the avoidance groove. The extension direction of the second steel ruler is perpendicular to the laser measurement area.

[0011] In a feasible implementation, the clamping assembly includes a hinge plate, a pressure plate, a first magnet and a second magnet;

[0012] The hinge plate is fixed to the side wall of the clamping seat, the pressing plate is located on the upper part of the clamping seat, and the end of the pressing plate is hinged to the top end of the hinge plate;

[0013] The lower surface of the pressing plate is inlaid with the first magnet, the upper surface of the clamping seat is provided with a blind hole, the second magnet is arranged in the blind hole, the first magnet and the second magnet attract each other, and the lower surface of the pressing plate and the upper surface of the clamping seat clamp the guide wire.

[0014] In a feasible implementation, the first steel ruler and the second steel ruler are arranged opposite to each other, and the pressure plate is located on one side of the second steel ruler.

[0015] In a feasible implementation, the device further includes a slide rail;

[0016] The slide rail is fixed on the bottom plate, and the clamping seat is fixed on the slider of the slide rail.

[0017] In a feasible implementation, the pushing assembly includes a connecting plate and a screw rod;

[0018] The connecting plate is fixed on the bottom plate, and a screw hole is provided on the connecting plate, and the screw rod is screwed with the screw hole of the connecting plate;

[0019] The end of the screw rod is rotatably connected to the clamping seat.

[0020] In a feasible implementation, the pushing assembly further includes a connecting block and a handle;

[0021] The connecting block is fixed on the clamping seat, the first end of the screw rod is rotatably connected to the connecting block, and the handle is fixed on the second end of the screw rod.

[0022] In a feasible implementation, a connection groove is provided at one end of the lower surface of the base plate, the connection groove matches the groove body of the laser outer diameter measuring instrument, and the lower surface of the base plate is parallel to the lower surface of the laser outer diameter measuring instrument.

[0023] In a feasible implementation, the side of the support block is provided with an ear plate, and screws penetrate the ear plate to connect with the bottom plate;

[0024] The upper surface of the support block is parallel to the upper surface of the clamping seat, the upper surface of the support block is provided with a first guide groove, the upper surface of the clamping seat is provided with a second wire groove, the first guide groove and the second wire groove are located in the same straight line, and the guide wire passes through the first guide groove and the second wire groove.

[0025] In a feasible implementation, a display screen is provided on the laser outer diameter measuring instrument, and the display screen displays the guide wire diameter value measured by the laser outer diameter measuring instrument.

[0026] An embodiment of the present application provides a device for measuring the distance from a gradual change position of the outer diameter of a guide wire to an end face. The outer diameter of the guide wire is measured by a laser outer diameter measuring instrument to determine the gradual change position of the outer diameter of the guide wire. An avoidance groove corresponding to the position of the laser measurement area is arranged on the support block. The zero scale position of the first steel ruler is located at the edge of the first side of the avoidance groove. The extension direction of the first steel ruler is perpendicular to the laser measurement area. The clamping assembly clamps the guide wire, and the moving end of the pushing assembly is connected to the clamping seat. The pushing assembly drives the clamping seat, the clamping assembly and the guide wire to move in a direction perpendicular to the laser measurement area. After the laser outer diameter measuring instrument determines the gradual change position of the outer diameter of the guide wire, the length of the thin diameter section and / or thick diameter section of the guide wire can be determined by the degree of the first steel ruler. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the guide wire;

[0028] Figure 2 It is a structural schematic diagram of a device for measuring the distance from the gradual change position of the outer diameter of a guide wire to the end face provided by the present application;

[0029] Figure 3 It is a structural schematic diagram of the support block;

[0030] Figure 4 It is a structural schematic diagram of the clamping seat;

[0031] Figure 5 is a schematic diagram of the structure of the clamping assembly;

[0032] Figure 6 It is a schematic diagram of the structure of the push component;

[0033] Figure 7The present invention is a schematic diagram of the use status of a device for measuring the distance from the gradual change position of the outer diameter of a guide wire to the end face.

[0034] Description of reference numerals:

[0035] 10-laser outer diameter measuring instrument; 20-bottom plate; 30-support block; 40-first steel ruler; 50-clamping seat; 60-pushing assembly; 70-clamping assembly; 80-second steel ruler; 90-slide rail;

[0036] 31-avoidance groove; 32-ear plate; 33-first guide groove, 51-blind hole; 52-second guide groove; 61-connecting plate; 62-screw; 63-connecting block; 64-handle; 71-hinge plate; 72-pressing plate; 73-first magnet; 74-second magnet. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0038] A guidewire is a medical device that is mainly used to guide other instruments into the lumen of the human body, such as blood vessels, ureters, etc. The guidewire is usually made of metal or polymer materials, is flexible and bendable, and can pass through narrow lumens. One end of the guidewire usually has a soft tip to reduce damage to the lumen wall, and the other end is connected to a handle for the doctor to operate.

[0039] like Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of the guidewire. The guidewire includes a thin diameter segment A, a variable diameter segment B, and a thick diameter segment C, which are connected in sequence. During use, the length of segment A or segment C needs to be measured to determine whether the length meets the technical numerical requirements. Since the guidewire is slender in shape and its outer diameter is less than one millimeter, the variable diameter segment B is not obvious, making it difficult to determine the position of the variable diameter segment B by manual measurement, and thus it is difficult to accurately measure the length of the thin diameter segment A or the thick diameter segment C.

[0040] The device provided in the present application for measuring the distance from the gradual change position of the outer diameter of the guide wire to the end face, accurately determines the outer diameter of the guide wire through a laser outer diameter measuring instrument, accurately determines the diameter change position, measures the distance from the gradual change position of the outer diameter of the guide wire to the end face through a steel ruler, obtains the length of the thin diameter segment and / or thick diameter segment of the guide wire, and determines whether the length of each segment of the guide wire meets the technical numerical requirements.

[0041] The specific structure of the device for measuring the distance from the gradual change position of the outer diameter of a guide wire to the end face provided by the present application is described in detail below in conjunction with the accompanying drawings.

[0042] Reference Figure 2-Figure 7 As shown, the embodiment of the present application provides a device for measuring the distance from the gradual change position of the outer diameter of a guide wire to the end face, comprising a laser outer diameter measuring instrument 10, a base plate 20, a support block 30 disposed on the base plate 20, a first steel ruler 40, a clamping seat 50 and a pushing assembly 60;

[0043] A slot is provided in the middle of the laser outer diameter measuring instrument 10, and a laser emitting end and a laser receiving end are provided on both sides of the slot to form a laser measuring area between the laser emitting end and the laser receiving end. The laser outer diameter measuring instrument 10 can be an outer diameter measuring instrument such as an LSM-500S outer diameter measuring instrument, a CDM25a outer diameter measuring instrument, etc.

[0044] like Figure 1 and Figure 6 As shown, the bottom plate 20 can be a rectangular plate body, the right end of the bottom plate 20 is connected to the slot body of the laser outer diameter measuring instrument 10, the bottom plate 20 is located at the bottom end of the slot body, and does not block the laser measurement area, the support block 30 is arranged on the bottom plate 20, and the support block 30 is located in the slot body, and the support block 30 is provided with an avoidance groove 31 corresponding to the position of the laser measurement area, and the width of the avoidance groove 31 is consistent with the width of the position of the laser measurement area, the first steel ruler 40 is fixedly arranged on the upper surface of the support block 30, and is located on the first side of the avoidance groove 31, the zero scale position of the first steel ruler 40 is located at the edge of the first side of the avoidance groove 31, and the extension direction of the first steel ruler 40 is perpendicular to the laser measurement area;

[0045] The clamping seat 50 and the pushing assembly 60 are both arranged on the bottom plate 20. The clamping seat 50 is provided with a clamping assembly 70. The clamping assembly 70 clamps the guide wire to fix the guide wire laterally. The moving end of the pushing assembly 60 is connected to the clamping seat 50. The pushing assembly 60 drives the clamping seat 50, the clamping assembly 70 and the guide wire to move in a direction perpendicular to the laser measurement area.

[0046] The clamping assembly 70 clamps the guide wire to fix the guide wire laterally, and the pushing assembly 60 drives the clamping seat 50, the clamping assembly 70 and the guide wire to move laterally to the right, and the right end of the guide wire enters the laser measurement area, and the laser outer diameter measuring instrument 10 measures the outer diameter of the guide wire in the laser measurement area;

[0047] When the variable diameter section of the guide wire just enters the laser measurement area, the outer diameter detected by the laser outer diameter measuring instrument 10 changes. At this time, the length of the right side section of the guide wire can be obtained by visually observing the degrees corresponding to the right end of the guide wire and the first steel ruler 40; if the width of the laser measurement area is extremely narrow and smaller than the precise unit, the width of the laser measurement area is ignored. If the width of the laser measurement area is wider, the width of the laser measurement area should be added after the 40 degrees of the first steel ruler, and the sum of the two is the length of the right side section of the guide wire; whether the right side section of the guide wire is a thin diameter section or a thick diameter section can be determined by visual inspection or by measurement with the laser outer diameter measuring instrument 10.

[0048] Reference Figure 1 As shown, in some embodiments, the device further comprises a second steel ruler 80;

[0049] The second steel ruler 80 is disposed on the upper surface of the support block 30 and is located at the second side of the avoidance groove 31. The zero scale position of the second steel ruler 80 is located at the edge of the second side of the avoidance groove 31. The extension direction of the second steel ruler 80 is perpendicular to the laser measurement area. The second steel ruler 80 is arranged in opposite phase to the first steel ruler 40.

[0050] During measurement, the clamping assembly 70 clamps the guide wire to fix it laterally. When the reduced diameter section of the guide wire just enters the laser measurement area, the degree corresponding to the right end of the guide wire and the first steel ruler 40 is visually observed to obtain the length of the right side section of the guide wire; the guide wire continues to be moved until the reduced diameter section of the guide wire passes through the laser measurement area. At this time, the degree corresponding to the left end of the guide wire and the second steel ruler 80 is visually observed to obtain the length of the left side section of the guide wire; similarly, if the width of the laser measurement area is extremely narrow and less than the precise unit, the width of the laser measurement area is ignored. If the width of the laser measurement area is wider, the width of the laser measurement area should be added after the 80 degrees of the second steel ruler, and the sum of the two is the length of the left side section of the guide wire.

[0051] Reference Figure 5 As shown, in some embodiments, the clamping assembly 70 includes a hinge plate 71, a pressure plate 72, a first magnet 73 and a second magnet 74;

[0052] The hinge plate 71 and the pressure plate 72 are both square plates. The hinge plate 71 is fixed to the front side wall of the clamping seat 50, and the pressure plate 72 is located at the upper part of the clamping seat 50. The front end of the pressure plate 72 is hinged to the top end of the hinge plate 71.

[0053] The lower surface of the pressing plate 72 is inlaid with a first magnet 73, the upper surface of the clamping seat 50 is provided with a blind hole 51, and the second magnet 74 is arranged in the blind hole 51. The first magnet 73 and the second magnet 74 attract each other, and the lower surface of the pressing plate 72 fits with the upper surface of the clamping seat 50 to clamp the guide wire.

[0054] Reference Figure 1As shown, in some embodiments, the first steel ruler 40 and the second steel ruler 80 are arranged opposite to each other, and the pressure plate 72 is located on one side of the second steel ruler 80, so that the fixed guide wire is close to the first steel ruler 40 and the second steel ruler 80 for easy reading.

[0055] Reference Figure 2 and Figure 6 As shown, in some embodiments, the device further includes a slide rail 90;

[0056] The slide rail 90 is fixed on the bottom plate 20 . The slide rail 90 extends transversely. The clamping seat 50 is fixed on a slider of the slide rail 90 , so that the clamping seat 50 can be easily moved.

[0057] Reference Figure 6 As shown, in some embodiments, the pushing assembly 60 includes a connecting plate 61 and a screw rod 62;

[0058] The connecting plate 61 is fixed on the bottom plate 20, and the connecting plate 61 is vertically arranged at the left end of the bottom plate 20. The connecting plate 61 is provided with a screw hole, and the screw rod 62 is screwed with the screw hole of the connecting plate 61, and the screw rod 62 extends horizontally;

[0059] The end of the screw rod 62 is rotatably connected to the clamping seat 50;

[0060] When the screw rod 62 is rotated clockwise, the screw rod 62 moves to the right relative to the connecting plate 61 and the base plate 20, thereby pushing the clamping seat 50, the clamping assembly 70 and the guide wire to move to the right; conversely, when the screw rod 62 is rotated counterclockwise, the screw rod 62 moves to the left relative to the connecting plate 61 and the base plate 20, thereby pulling the clamping seat 50, the clamping assembly 70 and the guide wire to move to the left.

[0061] In some embodiments, the pushing assembly 60 further includes a connecting block 63 and a handle 64;

[0062] The connecting block 63 is fixed on the clamping seat 50 , the right end of the screw rod 62 is rotatably connected to the connecting block 63 , and the handle 64 is fixed on the left end of the screw rod 62 , so as to facilitate the rotation of the screw rod 62 .

[0063] Reference Figure 6 As shown, in some embodiments, a connecting groove is provided at the right end of the lower surface of the base plate 20, and the connecting groove matches the groove body of the laser outer diameter measuring instrument 10. The lower surface of the base plate 20 is parallel to the lower surface of the laser outer diameter measuring instrument 10, so that the base plate 20 and the laser outer diameter measuring instrument 10 are stably connected.

[0064] Reference Figure 3 As shown, in some embodiments, the side of the bracket 30 is provided with an ear plate 32, and screws penetrate the ear plate 32 to connect with the bottom plate 20, so that the bracket 30 is fixed on the bottom plate 20;

[0065] Reference Figure 4As shown, the upper surface of the support block 30 is parallel to the upper surface of the clamping seat 50, the upper surface of the support block 30 is provided with a first guide groove 33, and the upper surface of the clamping seat 50 is provided with a second wire groove 52, the first guide groove 33 and the second wire groove 52 are located in the same straight line, and the guide wire passes through the first guide groove 33 and the second wire groove 52.

[0066] Reference Figure 1 As shown, in some embodiments, the laser outer diameter measuring instrument 10 is provided with a display screen, and the display screen displays the guide wire diameter value measured by the laser outer diameter measuring instrument 10 .

[0067] According to the above technical features, the working principle of the device for measuring the distance from the guide wire outer diameter gradient position to the end face provided by the present application in the actual application scenario is:

[0068] When using the device, the pressing plate 72 is flipped upward, the left side of the guide wire is placed in the second guide wire groove 52, and the pressing plate 72 is buckled, and the first magnet 73 and the second magnet 74 attract each other, so that the pressing plate 72 and the clamping seat 50 stably clamp the guide wire;

[0069] Turn the handle 64 clockwise to make the screw 62 push the clamping seat 50, the clamping assembly 70 and the guide wire to move rightward. When the right end of the guide wire enters the laser measurement area, the laser outer diameter measuring instrument 10 measures the outer diameter of the guide wire in the laser measurement area.

[0070] When the reduced diameter section of the guide wire just enters the laser measurement area, Figure 7 The status shown, Figure 7 D in the middle is the guide wire. The outer diameter detected by the laser outer diameter measuring instrument 10 changes. At this time, the degree corresponding to the right end of the guide wire and the first steel ruler 40 can be visually observed to obtain the length of the right section of the guide wire;

[0071] Continue to rotate the handle 64 clockwise until the reading of the laser outer diameter measuring instrument 10 is stable, that is, the diameter-changing section of the guide wire passes through the laser measuring area. At this time, the length of the left section of the guide wire can be obtained by visually measuring the degree corresponding to the left end of the guide wire and the second steel ruler 80.

[0072] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments based on the several embodiments provided in the present application, and these embodiments do not exceed the protection scope of the present application.

[0073] The above specific implementation methods further explain in detail the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above are only specific implementation methods of the embodiments of the present application and are not used to limit the protection scope of the embodiments of the present application. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. A device for measuring the distance from the gradual change position of the outer diameter of a guide wire to the end face, characterized in that: It comprises a laser outer diameter measuring instrument (10), a base plate (20), a support block (30) arranged on the base plate (20), a first steel ruler (40), a clamping seat (50) and a pushing assembly (60); The laser outer diameter measuring instrument (10) has a slot body in the middle, and a laser emitting end and a laser receiving end are disposed oppositely on two sides of the slot body, and a laser measuring area is formed between the laser emitting end and the laser receiving end; One end of the base plate (20) is connected to the groove body of the laser outer diameter measuring instrument (10); the support block (30) is arranged on the base plate (20); the support block (30) is provided with an avoidance groove (31) corresponding to the position of the laser measurement area; the width of the avoidance groove (31) is consistent with the width of the position of the laser measurement area; the first steel ruler (40) is fixedly arranged on the upper surface of the support block (30) and is located on a first side of the avoidance groove (31); the zero scale position of the first steel ruler (40) is located at the edge of the first side of the avoidance groove (31); and the extension direction of the first steel ruler (40) is perpendicular to the laser measurement area; The clamping seat (50) and the pushing assembly (60) are both arranged on the base plate (20); the clamping seat (50) is provided with a clamping assembly (70); the clamping assembly (70) clamps the guide wire; the moving end of the pushing assembly (60) is connected to the clamping seat (50); the pushing assembly (60) drives the clamping seat (50), the clamping assembly (70) and the guide wire to move in a direction perpendicular to the laser measurement area.

2. The device for measuring the distance from the gradual change position of the outer diameter of a guide wire to the end face according to claim 1, characterized in that: The device also includes a second steel ruler (80); The second steel ruler (80) is arranged on the upper surface of the support block (30) and is located on the second side of the avoidance groove (31); the zero scale position of the second steel ruler (80) is located on the edge of the second side of the avoidance groove (31); and the extension direction of the second steel ruler (80) is perpendicular to the laser measurement area.

3. The device for measuring the distance from the gradual change position of the outer diameter of a guide wire to the end face according to claim 2, characterized in that: The clamping assembly (70) comprises a hinge plate (71), a pressure plate (72), a first magnet (73) and a second magnet (74); The hinged plate (71) is fixedly mounted on the side wall of the clamping seat (50), the pressing plate (72) is located on the upper part of the clamping seat (50), and the end of the pressing plate (72) is hingedly connected to the top end of the hinged plate (71); The lower surface of the pressing plate (72) is inlaid with the first magnet (73), the upper surface of the clamping seat (50) is provided with a blind hole (51), the second magnet (74) is arranged in the blind hole (51), the first magnet (73) and the second magnet (74) attract each other, and the lower surface of the pressing plate (72) and the upper surface of the clamping seat (50) clamp the guide wire.

4. The device for measuring the distance from the gradual change position of the outer diameter of a guide wire to the end face according to claim 3, characterized in that: The first steel ruler (40) and the second steel ruler (80) are arranged opposite to each other, and the pressing plate (72) is located on one side of the second steel ruler (80).

5. The device for measuring the distance from the gradual change position of the outer diameter of a guide wire to the end face according to claim 1, characterized in that: The device also includes a slide rail (90); The slide rail (90) is fixed on the bottom plate (20), and the clamping seat (50) is fixed on a slider of the slide rail (90).

6. The device for measuring the distance from the gradual change position of the outer diameter of a guide wire to the end face according to claim 5, characterized in that: The pushing assembly (60) comprises a connecting plate (61) and a screw rod (62); The connecting plate (61) is fixedly mounted on the bottom plate (20), a screw hole is provided on the connecting plate (61), and the screw rod (62) is screwed to the screw hole of the connecting plate (61); The end of the screw rod (62) is rotatably connected to the clamping seat (50).

7. The device for measuring the distance from the gradual change position of the outer diameter of a guide wire to the end face according to claim 6, characterized in that: The pushing assembly (60) further comprises a connecting block (63) and a handle (64); The connecting block (63) is fixed on the clamping seat (50), the first end of the screw rod (62) is rotatably connected to the connecting block (63), and the handle (64) is fixed on the second end of the screw rod (62).

8. The device for measuring the distance from the gradual change position of the outer diameter of a guide wire to the end face according to claim 1, characterized in that: A connection groove is provided at one end of the lower surface of the base plate (20), the connection groove matches the groove body of the laser outer diameter measuring instrument (10), and the lower surface of the base plate (20) is parallel to the lower surface of the laser outer diameter measuring instrument (10).

9. The device for measuring the distance from the gradual change position of the outer diameter of a guide wire to the end face according to claim 4, characterized in that: The side of the support block (30) is provided with an ear plate (32), and screws penetrate through the ear plate (32) to connect with the bottom plate (20); The upper surface of the support block (30) is parallel to the upper surface of the clamping seat (50); the upper surface of the support block (30) is provided with a first guide groove (33); the upper surface of the clamping seat (50) is provided with a second guide groove (52); the first guide groove (33) and the second guide groove (52) are located in the same straight line, and the guide wire passes through the first guide groove (33) and the second guide groove (52).

10. The device for measuring the distance from the gradual change position of the outer diameter of a guide wire to the end face according to claim 1, characterized in that: The laser outer diameter measuring instrument (10) is provided with a display screen, and the display screen displays the guide wire diameter value measured by the laser outer diameter measuring instrument (10).

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