A device for detecting bending of a choledochoscope steering wire

Abstract

An embodiment of the present application provides a device for detecting the bending of a choledochoscope steering wire, comprising a base plate and a fixed seat and a movable seat arranged thereon, wherein the fixed seat and the movable seat both comprise a protrusion; a first locking block is movably mounted on the fixed seat, and a second locking block is movably mounted on the movable seat, an inclined groove is provided on the first locking block and the second locking block, a first oblique pushing block is movably mounted in the oblique groove of the first locking block, and a second oblique pushing block is movably mounted in the oblique groove of the second locking block; the first oblique pushing block and the second oblique pushing block are respectively rotatably connected to one end of a connecting rod, and the other ends of the two connecting rods are rotatably connected, and the cooperation of the first locking block, the second locking block and the protrusion can respectively realize the clamping of the scope body and the steering wire, and the user can operate by adjusting the angle between the two connecting rods with one hand, which can solve the problem of time-consuming and labor-intensive manual pulling at present.

Description

Technical Field

[0001] The present application relates to the field of medical device detection, and in particular to a device for detecting the bending of a choledochoscope steering wire. Background Art

[0002] Choledochoscopes are mainly used for endoscopic examination of the pancreatic and bile ducts and endoscopic surgery, such as Figure 1 As shown, it mainly includes a steering end 14 , a mirror body 15 and a steering wire 16 . The steering wire 16 is connected to the steering end 14 . The steering end 14 can be bent by pulling the steering wire 16 .

[0003] Since the human bile duct is not straight, when inserting the endoscope, medical staff need to pull the steering wire 16 to make the steering end 14 bend to adapt to the curvature of the human bile duct, and try to avoid the head of the steering end 14 from contacting the bile duct. This is also beneficial for guiding other parts of the choledochoscopic endoscope, which can reduce the patient's discomfort and bile duct damage.

[0004] After the choledochoscope is produced, it is necessary to detect whether the curvature of the turning end 14 meets the technical requirements. At present, the manual detection method is mostly adopted, but since the turning wire 16 is thin, it is more laborious to pull it manually, and the efficiency is low. Utility Model Content

[0005] An embodiment of the present application provides a device for detecting the bending of a choledochoscope steering wire. Through the cooperation of a first locking block, a second locking block and a raised portion, the scope body and the steering wire can be clamped respectively, and the user can operate it by adjusting the angle between the two connecting rods with one hand, which can solve the problem of time-consuming and labor-intensive manual traction.

[0006] The embodiment of the present application provides a device for detecting the bending of a steering wire of a choledochoscope, comprising a bottom plate, a fixed seat fixedly mounted on the bottom plate and a movable seat movably mounted on the bottom plate, the movable direction of the movable seat being parallel to the length direction of the bottom plate, the fixed seat and the movable seat being arranged along the length direction of the bottom plate, and the fixed seat and the movable seat each comprising a protrusion;

[0007] A first locking block is movably mounted on the fixed seat, and a second locking block is movably mounted on the movable seat. The movable directions of the first locking block and the second locking block are both perpendicular to the protruding portion. The sum of the movable resistance between the first locking block and the fixed seat and the movable resistance between the second locking block and the movable seat is less than the movable resistance between the movable seat and the bottom plate.

[0008] The first locking block and the second locking block are each provided with an inclined groove, the openings of the two inclined grooves are opposite to each other, a first inclined push block is movably installed in the inclined groove of the first locking block, and a second inclined push block is movably installed in the inclined groove of the second locking block;

[0009] The first oblique push block and the second oblique push block are respectively rotatably connected to one end of a connecting rod, and the other ends of the two connecting rods are rotatably connected.

[0010] In a feasible implementation, the first oblique push block and the second oblique push block each include a straight portion and an oblique push portion, a second slide groove is provided on the top surface of the fixed seat and the movable seat, the extension direction of the second slide groove is parallel to the corresponding protrusion, the two straight portions are respectively located in the corresponding second slide grooves and can slide along them, and the two oblique push portions are respectively located in the corresponding oblique grooves and can slide along them.

[0011] In a feasible implementation, the fixed seat and the movable seat are connected via a tension spring.

[0012] In a feasible implementation, a slide rail is fixedly mounted on the base plate, the length direction of the slide rail is parallel to the length direction of the base plate, and the movable seat is arranged on the slide rail and cooperates with the slide rail.

[0013] In a feasible implementation, a limiting block is fixedly installed at one end of the slide rail away from the fixing seat.

[0014] In a feasible implementation, the outer periphery of one of the connecting rods is fixedly connected to one end of the handle.

[0015] In a feasible implementation, anti-skid patterns or anti-skid pads are respectively provided on the opposing surfaces of the first locking block and the protruding portion, and on the opposing surfaces of the second locking block and the protruding portion.

[0016] A device for detecting the bending of a choledochoscope steering wire is provided in an embodiment of the present application. The device can respectively clamp the scope body and the steering wire through the cooperation of a first locking block, a second locking block and a protruding portion. Compared with human hands, the clamping area is larger, which is not conducive to the loosening of the scope body and the steering wire. The user can operate it by adjusting the angle between the two connecting rods with one hand. After clamping the choledochoscope, the steering wire can be pulled, which can improve the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of a choledochoscope;

[0018] Figure 2 It is a structural schematic diagram of a device for detecting bending of a choledochoscope steering wire provided in one embodiment of the present application;

[0019] Figure 3 This is a schematic diagram of the usage status of a choledochoscope steering wire bending detection device provided in one embodiment of the present application.

[0020] Description of reference numerals:

[0021] 1-base; 2-first locking block; 3-fixed seat; 4-first oblique push block;

[0022] 5-choledochoscope; 6-connecting rod;

[0023] 7-second oblique push block; 8-second locking block; 9-movable seat;

[0024] 10-slide rail; 11-limiting block; 12-tension spring; 13-handle;

[0025] 14-steering end; 15-mirror body; 16-steering wire. DETAILED DESCRIPTION

[0026] 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.

[0027] Figure 1 This is a schematic diagram of the structure of a choledochoscope. Figure 2 Schematic diagram of the structure of a device for detecting the bending of a choledochoscope steering wire provided in one embodiment of the present application. Figure 1 and Figure 2 As shown, the embodiment of the present application provides a device for detecting the bending of a choledochoscope steering wire, comprising a base plate 1, on which a fixed seat 3 and a movable seat 9 are fixedly mounted, wherein the movable direction of the movable seat 9 is parallel to the length direction of the base plate 1, the fixed seat 3 and the movable seat 9 are arranged along the length direction of the base plate 1, and the fixed seat 3 and the movable seat 9 each include a protrusion;

[0028] The first locking block 2 is movably mounted on the fixed seat 3, and the second locking block 8 is movably mounted on the movable seat 9. The movable directions of the first locking block 2 and the second locking block 8 are both perpendicular to the protruding portion. The sum of the movable resistance between the first locking block 2 and the fixed seat 3 and the movable resistance between the second locking block 8 and the movable seat 9 is less than the movable resistance between the movable seat 9 and the bottom plate 1.

[0029] It is easy to understand that a first slide groove is provided on the top surface of the fixed seat 3 and the movable seat 9, and the extension direction of the first slide groove is perpendicular to the corresponding protrusion. The first locking block 2 and the second locking block 8 are respectively arranged in the corresponding first slide groove and can slide along it.

[0030] In some examples, anti-skid patterns or anti-skid pads may be provided on the opposing surfaces of the first locking block 2 and the protrusion and the second locking block 8 and the protrusion, respectively, to increase the frictional force in contact with the choledochoscope 5 .

[0031] The first locking block 2 and the second locking block 8 are both provided with an oblique groove, the openings of the two oblique grooves are opposite to each other, the first oblique push block 4 is movably installed in the oblique groove of the first locking block 2, and the second oblique push block 7 is movably installed in the oblique groove of the second locking block 8;

[0032] It should be noted that the first oblique push block 4 includes a straight portion and an oblique push portion, and there is an angle between the straight portion and the oblique push portion. In some examples, the angle may be 45-60°. The structure of the second oblique push block 7 is the same as that of the first oblique push block 4. A second slide groove is provided on the top surface of the fixed seat 3 and the movable seat 9. The extension direction of the second slide groove is parallel to the corresponding raised portion. The two straight portions are respectively located in the corresponding second slide grooves and can slide along them, and the two oblique push portions are respectively located in the corresponding oblique grooves and can slide along them.

[0033] In some examples, the top surfaces of the first locking block 2 and the first oblique pushing block 4 are not higher than the top surface of the fixed seat 3, and the top surfaces of the second locking block 8 and the second oblique pushing block 7 are not higher than the top surface of the movable seat 9. A cover plate (not shown in the figure) is fixedly installed on the top surface of the fixed seat 3 and the top surface of the movable seat 9, respectively, so as to prevent the first locking block 2, the first oblique pushing block 4, the second oblique pushing block 7 and the second locking block 8 from tilting up during the sliding process.

[0034] Optionally, the cover plate may be connected to the fixed seat 3 and the movable seat 9 by bolts.

[0035] The first oblique push block 4 and the second oblique push block 7 are respectively rotatably connected to one end of a connecting rod 6, and the other ends of the two connecting rods 6 are rotatably connected.

[0036] Figure 3 Schematic diagram of the use status of the device for detecting the bending of the choledochoscope steering wire provided in one embodiment of the present application. Figure 3As shown, in the above embodiment, the initial angle between the two link rods 6 is α, the movable seat 9 is relatively close to the fixed seat 3, and there is a certain distance between the first inclined push block 4, the second inclined push block 7 and the inner ends of the corresponding inclined grooves. Place the body 15 of the choledochoscope 5 between the first locking block 2 and the corresponding convex part, and place the steering wire 16 of the choledochoscope 5 between the second locking block 8 and the corresponding convex part. Manually change the angle between the two link rods 6. During the process of the angle changing to β (α < β), assume that the sliding resistance between the first locking block 2 and the first sliding groove is f1, the sliding resistance between the second locking block 8 and the first sliding groove is f2, the sliding resistance between the first inclined push block 4 and the second sliding groove and the inclined groove is f3, the sliding resistance between the second inclined push block 7 and the second sliding groove and the inclined groove is f4, and the moving resistance between the movable seat 9 and the bottom plate 1 is f5. Since f1 + f2 + f3 + f4 < f5, first, the first inclined push block 4 and the second inclined push block 7 slide away from each other along the corresponding second sliding grooves respectively. Through the cooperation between the inclined pushing part and the inclined groove, the first locking block 2 and the second locking block 8 can slide along the first sliding groove towards the corresponding convex parts respectively, so as to clamp the body 15 and the steering wire 16. At this time, the first locking block 2 and the second locking block 8 cannot move further. Subsequently, the movable seat 9 moves away from the fixed seat 3 along the length direction of the base 1, and the pulling of the steering wire 16 can be completed, so that the steering end 14 is driven to bend.

[0037] In other examples, the movable end of a cylinder or an electric push rod can also be rotatably connected to the rotational connection of the two link rods 6, and the angle between the two link rods 6 can be changed by the telescopic movement of the cylinder or the electric push rod.

[0038] Through the cooperation of the first locking block 2, the second locking block 8 and the convex part in the embodiment of the present application, the clamping of the body 15 and the steering wire 16 can be realized respectively. And compared with the human hand, the clamping area is larger, which is not conducive to the loosening of the body 15 and the steering wire 16. The user can operate by adjusting the angle between the two link rods 6 with one hand. After clamping the choledochoscope 5, the pulling of the steering wire 16 can be completed by the movement of the movable seat 9, which can improve the detection efficiency.

[0039] Refer to Figure 2 As shown, in some examples, the fixed seat 3 and the movable seat 9 are connected by a tension spring 12.

[0040] In the above embodiment, when the user releases the force, under the pulling force of the tension spring 12, the movable seat 9 can return to the initial position, thus saving the time for manual reset.

[0041] It is easy to understand that in the above embodiments, the tensile force f6 of the tension spring 12 is greater than the moving resistance f5 between the movable seat 9 and the bottom plate 1. Correspondingly, f1 + f2 + f3 + f4 < f5 + f6 can meet the condition of clamping the choledochoscope 5 first and then pulling the steering wire 16, or resetting the steering wire 16 first and then releasing the choledochoscope 5.

[0042] In some examples, a slide rail 10 is fixedly installed on the bottom plate 1. The length direction of the slide rail 10 is parallel to the length direction of the bottom plate 1. The movable seat 9 is arranged on the slide rail 10 and cooperates with it.

[0043] It is easy to understand that a third chute cooperating with the slide rail 10 can be opened on the bottom surface of the movable seat 9, or a slide block cooperating with the slide rail 10 can be installed on the bottom surface of the movable seat 9. The present application does not limit this.

[0044] In the above embodiments, the movement direction of the movable seat 9 can be limited through the slide rail 10, improving its movement stability. By selecting the specific model of the slide rail 10, it is also beneficial to control the sliding resistance f5 between the movable seat 9 and the slide rail 10, and to minimize the resistance on the premise of meeting the requirements of the above embodiments, so as to make it more labor-saving for users to use.

[0045] In some examples, a limit block 11 is fixedly installed at one end of the slide rail 10 away from the fixed seat 3.

[0046] In the above embodiments, the limit block 11 can prevent the movable seat 9 from detaching from the slide rail 10 when moving away from the fixed seat 3.

[0047] In some examples, one end of a handle 13 is fixedly connected to the outer periphery of one of the connecting rods 6.

[0048] In the above embodiments, the user manually changes the angle between the two connecting rods 6 through the handle 13, which extends the torque, is more labor-saving, and is also beneficial for the user to operate with one hand.

[0049] It is easy to understand that anti-slip lines can be set on the surface of the handle 13, or an anti-slip pad can be set to increase the friction with the human hand and prevent the user from slipping during operation.

[0050] The choledochoscope steering wire bending detection device provided by the embodiments of the present application can drive the first locking block 2 and the second locking block 8 to move by adjusting the angle between the two connecting rods 6, so as to clamp or release the choledochoscope 5, and can drive the movable seat 9 to move, so as to pull or reset the steering wire 16, so that the steering end 14 of the choledochoscope 5 bends or restores, which helps the user to detect the bending degree of the steering end of the choledochoscope, and the operation is simple and labor-saving, and can improve the efficiency of detecting the bending degree of the steering end of the choledochoscope.

[0051] 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.

[0052] 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 detecting the bending of a choledochoscope steering wire, characterized in that: The invention comprises a bottom plate (1), a fixed seat (3) being fixedly mounted on the bottom plate (1) and a movable seat (9) being movably mounted on the bottom plate (1), the movable direction of the movable seat (9) being parallel to the length direction of the bottom plate (1), the fixed seat (3) and the movable seat (9) being arranged along the length direction of the bottom plate (1), and the fixed seat (3) and the movable seat (9) both comprising a protruding portion; A first locking block (2) is movably mounted on the fixed seat (3), and a second locking block (8) is movably mounted on the movable seat (9); the movable directions of the first locking block (2) and the second locking block (8) are both perpendicular to the protruding portion; and the sum of the movable resistance between the first locking block (2) and the fixed seat (3) and the movable resistance between the second locking block (8) and the movable seat (9) is less than the movable resistance between the movable seat (9) and the bottom plate (1); The first locking block (2) and the second locking block (8) are each provided with an inclined groove, the openings of the two inclined grooves are opposite to each other, a first inclined push block (4) is movably installed in the inclined groove of the first locking block (2), and a second inclined push block (7) is movably installed in the inclined groove of the second locking block (8); The first oblique push block (4) and the second oblique push block (7) are respectively rotatably connected to one end of a connecting rod (6), and the other ends of the two connecting rods (6) are rotatably connected.

2. The device for detecting the bending of a choledochoscope steering wire according to claim 1, characterized in that: The first oblique push block (4) and the second oblique push block (7) each comprise a straight portion and an oblique push portion, the top surfaces of the fixed seat (3) and the movable seat (9) each comprise a second slide groove, the extension direction of the second slide groove being parallel to the corresponding raised portion, the two straight portions being respectively located in the corresponding second slide grooves and being able to slide along the same, and the two oblique push portions being respectively located in the corresponding oblique grooves and being able to slide along the same.

3. The device for detecting bending of a choledochoscope steering wire according to claim 1, characterized in that: The fixed seat (3) and the movable seat (9) are connected via a tension spring (12).

4. The device for detecting bending of a choledochoscope steering wire according to claim 1, characterized in that: A slide rail (10) is fixedly mounted on the base plate (1), the length direction of the slide rail (10) is parallel to the length direction of the base plate (1), and the movable seat (9) is arranged on the slide rail (10) and cooperates with it.

5. The device for detecting the bending of the choledochoscope steering wire according to claim 4, characterized in that: A limiting block (11) is fixedly mounted on one end of the slide rail (10) away from the fixing seat (3).

6. The device for detecting bending of a choledochoscope steering wire according to any one of claims 1 to 5, characterized in that: The outer periphery of one of the connecting rods (6) is fixedly connected to one end of a handle (13).

7. The device for detecting the bending of a choledochoscope steering wire according to any one of claims 1 to 5, characterized in that: Anti-skid patterns or anti-skid pads are respectively provided on the opposing surfaces of the first locking block (2) and the raised portion, and on the opposing surfaces of the second locking block (8) and the raised portion.

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