An endoscope insertion portion pre-mounting jig and a method for using the same

Abstract

The application discloses an endoscope insertion part pre-installation tool and a use method thereof. The pre-installation tool comprises a base, a fixing mechanism arranged on the base and used for fixing an insertion part of an endoscope, a brake mechanism slidably arranged on the base in a front-rear direction and arranged behind the fixing mechanism, the brake mechanism being used for blocking a first threaded tube on the insertion part, a steel wire in the first threaded tube being capable of penetrating through the brake mechanism, a connecting mechanism used for connecting the steel wire penetrating through the brake mechanism and a traction mechanism and used for traction of the steel wire, the traction mechanism being arranged behind the connecting mechanism, the traction mechanism being in transmission connection with the connecting mechanism, and the traction mechanism being used for pulling the steel wire to drive a tip head on the insertion part to bend.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of endoscopes, in particular to an endoscope insertion part pre-installation tool and a method thereof. BACKGROUND

[0002] Endoscope systems are widely used in the medical industry, generally comprising an operating part and an insertion part, and the operating part is used to operate the insertion part.

[0003] At present, when producing an endoscope, the insertion part and the operating part are first connected, and then the tightness of the connecting steel wire is adjusted and the bending effect of the tip of the insertion part is verified after the threaded tube is fixed with glue. This installation has the following problems: 1) The space for connecting the insertion part and the operating part is small, and it is not convenient for workers to adjust the operation; 2) The tightness of the installed steel wire is judged by the assembly worker through experience, without using a test / measuring instrument, and the assembly effect is unstable; 3) After assembly, if abnormalities are found, it needs to be disassembled and reassembled, that is, repeated gluing and ungluing, which is complex and time-consuming and laborious. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides an endoscope insertion part pre-installation tool, which can quickly adjust the ideal installation state of the traction mechanism, is applied to actual installation, and realizes one-time adjustment and installation of the tightness of the threaded tube, thereby facilitating subsequent installation of the insertion part.

[0005] The present application also provides a method for using the above-mentioned endoscope insertion part pre-installation tool.

[0006] According to the first aspect of the present application, an endoscope insertion part pre-installation tool comprises: a base; a fixing mechanism arranged on the base, the fixing mechanism being used to fix the insertion part of the endoscope; a brake mechanism slidably arranged on the base along the steel wire arrangement direction, the brake mechanism being arranged behind the fixing mechanism, the brake mechanism being used to block the first threaded tube on the insertion part, and the steel wire in the first threaded tube being able to pass through the brake mechanism; a connecting mechanism arranged behind the brake mechanism, the connecting mechanism being used to connect the steel wire passing out from the brake mechanism; a traction mechanism arranged behind the connecting mechanism, the traction mechanism being drivingly connected to the connecting mechanism, the traction mechanism being used to pull the steel wire to drive the tip of the insertion part to bend; and a testing mechanism drivingly connected to the traction mechanism, the testing mechanism being used to drive the traction mechanism to drive the tip of the insertion part to bend.

[0007] According to an embodiment of the present invention, a pre-installation fixture for an endoscope insertion part has at least the following advantages: the pre-installation fixture for an endoscope insertion part has a simple structure, integrating the fixing mechanism, the braking mechanism, the connecting mechanism, the traction mechanism, and the testing mechanism on the base, so that the insertion part can be installed on the fixing mechanism, the threaded tube can be driven and compressed by the braking mechanism, and the steel wire on the insertion part can be driven and pulled by the connecting mechanism and the traction mechanism, eliminating the trouble of directly installing the insertion part onto the operating part housing. The entire fixture has a large space, is easy to operate, and the compression degree of the threaded tube and the tightness of the steel wire of the insertion part can be adjusted in advance, which facilitates the subsequent direct installation of the insertion part and the operating part.

[0008] According to some embodiments of the present invention, the fixing mechanism includes: a placement platform connected to the base, the placement platform extending along the direction of the steel wire placement, the placement platform being used to support the insertion part; a fixing block connected to the base, the fixing block being disposed at the rear end of the placement platform, the fixing block being provided with a first stepped hole extending along the direction of the steel wire placement and a threaded hole extending vertically, the threaded hole communicating with the first stepped hole, the smaller hole segment of the first stepped hole being disposed in front of the larger hole segment, the first stepped hole being used to accommodate the insertion part; and a clamping screw threadedly connected to the threaded hole, the clamping screw being used to lock the insertion part. The fixing mechanism has a simple structure, using the first stepped hole to achieve fixing and axial limiting of the insertion part, and the clamping screw is easy to operate, facilitating quick locking of the insertion part.

[0009] According to some embodiments of the present invention, the braking mechanism includes: two sets of slides arranged side by side in the direction perpendicular to the placement of the steel wire, the slides being slidably mounted on the base along the direction of the steel wire placement; a brake handle disposed on the slides, the brake handle corresponding to each slide, the brake handle being used to brake the slides; and a threaded tube retaining block disposed on the slides, the threaded tube retaining block corresponding to each slide, the threaded tube retaining block having a second stepped hole, the larger section of the second stepped hole being positioned in front of the smaller section, the larger section of the second stepped hole being used to accommodate a first threaded tube, and the smaller section of the second stepped hole being used to pass through the steel wire; the slides are used to drive the threaded tube retaining block to press the first threaded tube, and the braking mechanism uses the slides and the brake handle to adjust the position of the threaded tube retaining block, facilitating the quantification of the compression length of the first threaded tube and realizing the adjustment of the first threaded tube.

[0010] According to some embodiments of the present invention, a measuring scale is also included, which is disposed on the base and is used to quantify the movement distance of the slide table, thereby reflecting the compression length of the first threaded tube.

[0011] According to some embodiments of the present invention, the connecting mechanism includes: two connecting blocks arranged side by side along the vertical direction of the steel wire, each connecting block having a mounting cavity and a stud, the mounting cavity being used to accommodate the steel wire; a grommet screw threaded onto the connecting block, the grommet screw being used to tighten the steel wire in the mounting cavity; and an adjusting nut with its front end internally threaded to the stud, the end of the adjusting nut being drively connected to the traction mechanism. The connecting blocks serve as a transfer connection between the steel wire and the traction steel wire. The stud on the connecting block and the adjusting nut cooperate to adjust the tightness of the connection between the steel wire and the traction steel wire, making the adjustment convenient and quick.

[0012] According to some embodiments of the present invention, a clamping piece is further included, the clamping piece being accommodated in the mounting cavity, the clamping piece being connected to the grommet screw, the grommet screw being used to drive the clamping piece to cooperate with the connecting block to clamp the steel wire, and the clamping piece being configured to have a large contact area with the bottom surface of the mounting cavity, which facilitates the clamping piece to press the steel wire.

[0013] According to some embodiments of the present invention, the traction mechanism includes: a connecting shaft rotatably connected to the base, the rotation axis of the connecting shaft extending vertically; an angle hub fixedly connected to the connecting shaft, the angle hub being coaxially arranged with the connecting shaft, the angle hub being used to wind the traction steel wire; a test turntable fixedly connected to the connecting shaft, the test turntable being coaxially arranged with the connecting shaft; an angle handle fixedly connected to the connecting shaft, the angle handle being used to drive the angle hub to rotate; a mounting block disposed on the base, the mounting block being provided with two mounting grooves extending along the steel wire placement direction, the mounting grooves being used to install a second threaded tube; two traction heads of the traction steel wire respectively passing through the two second threaded tubes and connected to the corresponding adjusting nuts, the traction mechanism being used to simulate the operating part, cooperating with the test mechanism to realize the measurement of torque, quantifying the force required to drive the insertion part to bend through torque measurement, thereby facilitating the operator to adjust the tightness of the steel wire and the compression degree of the first threaded tube, the overall structure being simple and easy to operate.

[0014] According to some embodiments of the present invention, a limiting shell is connected to the angular hub, the limiting shell being used to prevent the traction steel wire from coming out of the steel wire groove of the angular hub.

[0015] According to some embodiments of the present invention, the testing mechanism includes a torque meter, the test end of which is detachably connected to the test turntable, and the torque meter is used to test torque.

[0016] A method of using an endoscope insertion pre-installation fixture according to a second aspect of the present invention, applied to the endoscope insertion pre-installation fixture, includes the following steps:

[0017] Installation: One end of the insertion part is a tip, and the other end is a fixed shaft. The tip of the insertion part is inserted through the large hole of the first stepped hole until the end face of the fixed shaft abuts against the step of the first stepped hole. Then, the clamping screw is screwed in to fix the end of the insertion part. The first threaded tube and the steel wire extending from the end of the insertion part are inserted through the large hole of the second stepped hole until the end face of the first threaded tube abuts against the step of the second stepped hole. The steel wire can move freely in the stepped hole and exit through the small hole of the second stepped hole. The steel wire is inserted into the mounting cavity. Then, the clamping plate is driven by the nut screw to press and fix the steel wire on the connecting block. Then, the stud is threaded to the adjusting nut. Then, the two traction heads of the traction steel wire are respectively connected to the corresponding adjusting nuts. The tightness of the steel wire is adjusted by adjusting the relative position of the adjusting nut and the connecting block.

[0018] Adjustment: The first threaded tube is initially in a relaxed state, and the end face of the first threaded tube abuts against the step in the second stepped hole of the threaded tube retaining block. Read the value L1 of the position of the slide table from the measuring scale. Move the slide table so that the first threaded tube on the insertion part is pressed by the threaded tube retaining block. At the same time, use the testing mechanism to operate the testing turntable. The testing turntable rotates to drive the angle hub to rotate, thereby pulling the traction steel wire, thereby driving the insertion part to complete the bending action. When the torque value measured by the testing mechanism is a predetermined value, pull the brake handle to fix the slide table on the base, and then read the value L2 of the position of the slide table from the measuring scale.

[0019] Check and remove the test mechanism, turn the angle handle to check the feel and bending angle of the insertion part, further check whether there is any abnormality in the installation effect of the tip of the insertion part, and after confirming that there is no abnormality, calculate the compression length of the first threaded pipe L = L2 - L1, and then remove the insertion part from the device.

[0020] Installation: Install the removed insertion part onto the operating part of the endoscope, adjust the compression length of the first threaded tube according to the L value calculated above, and then glue the end of the first threaded tube to the operating part.

[0021] According to an embodiment of the present invention, a method for using a pre-installation fixture for an endoscope insertion part has at least the following advantages: The pre-installation fixture for an endoscope insertion part has a simple structure, integrating the fixing mechanism, the braking mechanism, the connecting mechanism, the traction mechanism, and the testing mechanism on the base, so that the insertion part can be installed on the fixing mechanism, the threaded tube can be compressed by the braking mechanism, and the steel wire on the insertion part can be pulled by the connecting mechanism and the traction mechanism, eliminating the trouble of directly installing the insertion part onto the operating part housing. The entire fixture has a large space, is easy to operate, and the compression degree of the threaded tube and the tightness of the steel wire of the insertion part can be adjusted in advance, which facilitates the subsequent direct installation of the insertion part and the operating part.

[0022] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0024] Figure 1 This is a schematic diagram of the pre-installation fixture for the endoscope insertion part according to an embodiment of the present invention;

[0025] Figure 2 for Figure 1 An exploded view of the pre-installation fixture for the endoscope insertion section is shown.

[0026] Figure 3 for Figure 1 A cross-sectional view of the braking mechanism of the endoscope insertion pre-installation fixture shown.

[0027] Figure 4 for Figure 1 The diagram shows a lateral view of the structure of the fixing mechanism and the connecting mechanism of the pre-installation fixture for the endoscope insertion section.

[0028] Figure 5 for Figure 1 A schematic diagram of the connection mechanism of the pre-installation fixture for the endoscope insertion section is shown.

[0029] Figure 6 for Figure 1 The diagram shows a top view of the pre-installed endoscope insertion fixture in conjunction with the testing mechanism.

[0030] Base 100, fixing mechanism 200, placement platform 210;

[0031] Fixing block 220, first stepped hole 221, threaded hole 222, clamping screw 230;

[0032] Braking mechanism 300, slide table 310, brake handle 320, threaded pipe retaining block 330, second step hole 331, measuring tape 340;

[0033] Connecting mechanism 400, connecting block 410, mounting cavity 411, stud 412;

[0034] Machine screw 420, adjusting nut 430, clamping plate 440;

[0035] Traction mechanism 500, connecting shaft 510, angle hub 520, limiting shell 521, traction steel wire 522;

[0036] Test turntable 530, angle handle 540;

[0037] Mounting block 550, mounting groove 551, second threaded pipe 552;

[0038] Test mechanism 600, insertion part 700, first threaded tube 710, steel wire 711. Detailed Implementation

[0039] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0040] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0041] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0042] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0043] Reference Figures 1 to 6An endoscope insertion pre-installation fixture includes: a base 100; a fixing mechanism 200 disposed on the base 100, the fixing mechanism 200 being used to fix the endoscope insertion portion 700; a braking mechanism 300 slidably disposed on the base 100 in the front-rear direction, the braking mechanism 300 being disposed behind the fixing mechanism 200, the braking mechanism 300 being used to intercept a first threaded tube 710 on the insertion portion 700, the steel wire 711 in the first threaded tube 710 being able to pass through the braking mechanism 300; and a connecting mechanism 400 disposed on... Behind the braking mechanism 300, a connecting mechanism 400 is used to connect the steel wire 711 that passes through the braking mechanism 300; a traction mechanism 500 is located behind the connecting mechanism 400, and the traction mechanism 500 is driven to connect the connecting mechanism 400, and is used to pull the steel wire 711 to drive the tip of the insertion part 700 to bend; a testing mechanism 600 is driven to connect the traction mechanism 500, and the testing mechanism 600 is used to drive the traction mechanism 500 to drive the tip of the insertion part 700 to bend.

[0044] The pre-installation fixture for the endoscope insertion part has a simple structure, integrating the fixing mechanism 200, braking mechanism 300, connecting mechanism 400, traction mechanism 500, and testing mechanism 600 on the base 100. This allows the insertion part 700 to be installed on the fixing mechanism 200, the threaded tube to be compressed by the braking mechanism 300, and the steel wire 711 on the insertion part 700 to be pulled by the connecting mechanism 400 and the traction mechanism 500. This eliminates the hassle of directly installing the insertion part 700 onto the operating part housing. The fixture has a large space and is easy to operate. The compression degree of the threaded tube and the tightness of the steel wire 711 of the insertion part 700 can be adjusted in advance, facilitating the subsequent direct installation of the insertion part 700 and the operating part.

[0045] In some embodiments, the fixing mechanism 200 includes: a placement platform 210 connected to the base 100, the placement platform 210 extending in the front-rear direction, the placement platform 210 being used to support the insertion part 700; a fixing block 220 connected to the base 100, the fixing block 220 being disposed at the rear end of the placement platform 210, the fixing block 220 being provided with a first stepped hole 221 extending in the front-rear direction and a threaded hole 222 extending in the vertical direction, the threaded hole 222 communicating with the first stepped hole 221, the smaller hole segment of the first stepped hole 221 being disposed in front of the larger hole segment, the first stepped hole 221 being used to accommodate the insertion part 700; and a clamping screw 230 threadedly connected to the threaded hole 222, the clamping screw 230 being used to lock the insertion part 700. The fixing mechanism 200 has a simple structure, using the first stepped hole 221 to achieve fixing and axial limiting of the insertion part 700, and the clamping screw 230 is easy to operate, facilitating quick locking of the insertion part 700. It is understandable that the fixing mechanism 200 can also be provided with an elastic slot on the fixing block 220, that is, when fixing the insertion part 700, the slot is used to fix the insertion part 700.

[0046] In some embodiments, the braking mechanism 300 includes: two sets of slides 310 arranged side-by-side in the left-right direction, the slides 310 being slidably mounted on the base 100 in the front-back direction; a brake handle 320 mounted on the slides 310, the brake handle 320 corresponding to each slide 310, the brake handle 320 being used to brake the slides 310; and a threaded pipe retaining block 330 mounted on the slides 310, the threaded pipe retaining block 330 corresponding to each slide 310, the threaded pipe retaining block 330 having a second stepped hole 331, the larger section of the second stepped hole 331 being positioned in front of the smaller section, the larger section of the second stepped hole 331 being used to accommodate the first threaded pipe 710, and the smaller section of the second stepped hole 331 being... Used to pass through the steel wire 711; the slide 310 is used to drive the threaded tube retaining block 330 to press the first threaded tube 710. The braking mechanism 300 uses the slide 310 and the brake handle 320 to adjust the position of the threaded tube retaining block 330, which facilitates the quantification of the compression length of the first threaded tube 710 and realizes the adjustment of the first threaded tube 710. It can be understood that a guide rail is set on the base 100, the slide 310 is slidably connected to the guide rail, and the slide 310 and the guide rail are in a one-to-one correspondence. The braking method of the brake handle 320 is a common braking method. By rotating the brake handle 320 downward, the eccentric roller inside the brake handle 320 is pressed against the guide rail, thereby producing a braking effect on the slide 310. This is a common braking method.

[0047] In some embodiments, the slide 310 of the braking mechanism 300 may also be provided with a downwardly extending threaded hole. By using a set screw to pass through the threaded hole, the slide 310 can be locked onto the base 100, which can also satisfy the function of the brake threaded tube retaining block 330.

[0048] Reference Figure 4 It also includes a measuring scale 340, which is set on the base 100. The measuring scale 340 is used to quantify the moving distance of the slide 310, thereby reflecting the compression length of the first threaded tube 710. It can be understood that the measuring scale 340 is pasted on the left or right side of the base 100, or the measuring scale 340 can be magnetically attached to the left or right side of the base 100.

[0049] In some embodiments, the connecting mechanism 400 includes: two connecting blocks 410 arranged side by side in a left-right direction, each connecting block 410 having a mounting cavity 411 and a stud 412, the mounting cavity 411 for accommodating a steel wire 711; a grommet screw 420 threadedly connected to the connecting blocks 410, the grommet screw 420 for clamping the steel wire 711 in the mounting cavity 411; and an adjusting nut 430 with an internal thread at its front end connected to the stud 412, the end of the adjusting nut 430 being drive-connected to the traction mechanism 500, the connecting blocks 410 acting as a middle... The function of the connecting steel wire 711 and the traction steel wire 522 is that the stud 412 and the adjusting nut 430 on the connecting block 410 cooperate to adjust the tightness of the connection between the steel wire 711 and the traction steel wire 522. The adjustment is convenient and quick. It can be understood that the function of the connecting mechanism 400 is to connect the steel wire 711 and the traction steel wire 522, and at the same time, it can also adjust the connection length of the steel wire 711 and the traction steel wire 522, which is equivalent to adjusting the overall tightness of the steel wire 711 and the traction steel wire 522, which is convenient for testing and adjustment before installation.

[0050] Reference Figure 1 , Figure 2 and Figure 5 It also includes a clamping plate 440, which is housed in the mounting cavity 411. The clamping plate 440 is connected to a grommet screw 420, which drives the clamping plate 440 to cooperate with the connecting block 410 to clamp the steel wire 711. The clamping plate 440 has a large contact area with the bottom surface of the mounting cavity 411, which makes it easy for the clamping plate 440 to press the steel wire 711. It can be understood that the clamping plate 440 can be made of soft metals such as copper or aluminum, or it can be made of plastic or rubber. The purpose is to increase the friction to fix the steel wire 711, while also protecting the steel wire from mechanical damage.

[0051] Reference Figure 1 , Figure 2 and Figure 6The traction mechanism 500 includes: a connecting shaft 510 rotatably connected to the base 100, the rotation axis of the connecting shaft 510 extending vertically; an angle hub 520 connected to the connecting shaft 510, coaxially arranged with the connecting shaft 510, and used for winding the traction steel wire 522; a test turntable 530 connected to the connecting shaft 510, coaxially arranged with the connecting shaft 510; an angle handle 540 connected to the connecting shaft 510, used for driving the angle hub 520 to rotate; and a mounting block 550 disposed on the base 100. On the mounting block 550, there are two mounting grooves 551 extending in the front-to-back direction. The mounting grooves 551 are used to install the second threaded tube 552. The two traction heads of the traction wire 522 pass through the two second threaded tubes 552 respectively and are connected to the corresponding adjusting nuts 430. The traction mechanism 500 is used to simulate the operating part and cooperates with the testing mechanism 600 to measure the torque. The torque measurement quantifies the force required to drive the insertion part 700 to bend, so that the operator can easily adjust the tightness of the wire 711 and the compression degree of the first threaded tube 710. The overall structure is simple and easy to operate.

[0052] In some embodiments, a limiting shell 521 is connected to the angle hub 520, the limiting shell 521 being used to prevent the traction steel wire 522 from coming out of the steel wire groove of the angle hub 520.

[0053] Reference Figure 6 The testing mechanism 600 includes a torque meter. The testing end of the torque meter is detachably connected to the testing turntable 530. The torque meter is used to test torque. It can be understood that the clamping head on the torque meter is similar to the head of a bayonet wrench, and the testing turntable 530 is provided with a connecting part similar to the head of a hex bolt. The clamping head on the torque meter is locked onto the connecting part of the testing turntable 530, driving the angle hub 520 to rotate so that the value can be read from the torque meter. Then the torque meter is removed, and the angle handle 540 is operated manually again to test the torque sensing. This process is repeated to confirm that the torque magnitude is appropriate and the force sensing effect meets the expectations.

[0054] A method of using an endoscope insertion pre-installation fixture, applied to an endoscope insertion pre-installation fixture, includes the following steps:

[0055] During installation, one end of the insertion part 700 is a tip, and the other end is a fixed shaft. The tip of the insertion part 700 is inserted through the large hole section of the first stepped hole 221 until the end face of the fixed shaft abuts against the step of the first stepped hole 221. Then, the clamping screw 230 is screwed in to fix the end of the insertion part 700. The first threaded tube 710 and the steel wire 711 extending from the end of the insertion part 700 are then inserted through the large hole section of the second stepped hole 331 until the end face of the first threaded tube 710 abuts against the step of the second stepped hole 331. 711 can move freely in the stepped hole and pass through the small hole section of the second stepped hole 331. The steel wire 711 that has passed through is inserted into the mounting cavity 411. Then, the clamping plate 440 is driven by the nut screw 420 to press and fix the steel wire 711 onto the connecting block 410. Then, the stud 412 is threadedly connected to the adjusting nut 430. Then, the two traction heads of the traction steel wire 522 are respectively connected to the corresponding adjusting nuts 430. By adjusting the relative position of the adjusting nut 430 and the connecting block 410, the tightness of the steel wire 711 is adjusted.

[0056] Adjustment: The first threaded tube 710 is initially in a relaxed state, and the end face of the first threaded tube 710 abuts against the step in the second stepped hole 331 of the threaded tube retaining block 330. The value L1 of the position of the slide 310 at this time is read from the measuring scale 340. The slide 310 is moved so that the first threaded tube 710 on the insertion part 700 is in a state of being pressed by the threaded tube retaining block 330. At the same time, the testing mechanism 600 is used to operate the testing turntable 530. The testing turntable 530 rotates to drive the angle hub 520 to rotate, thereby pulling the traction steel wire 522, thereby driving the insertion part 700 to complete the bending action. When the torque value measured by the testing mechanism 600 is a predetermined value, the brake handle 320 is pulled to fix the slide 310 on the base 100. Then the value L2 of the position of the slide 310 at this time is read from the measuring scale 340.

[0057] Check and remove the test mechanism 600, turn the angle handle 540 to check the feel and bending angle of the insertion part 700, further check whether there is any abnormality in the installation effect of the tip of the insertion part 700. After confirming that there is no abnormality, calculate the compression length L of the first threaded tube 710 = L2-L1, and then remove the insertion part 700 from the device.

[0058] Installation: Install the removed insertion part 700 onto the operating part of the endoscope, adjust the compression length of the first threaded tube 710 according to the L value calculated above, and then glue the end of the first threaded tube 710 onto the operating part.

[0059] The pre-installation fixture for the endoscope insertion part has a simple structure, integrating the fixing mechanism 200, braking mechanism 300, connecting mechanism 400, traction mechanism 500, and testing mechanism 600 on the base 100. This allows the insertion part 700 to be installed on the fixing mechanism 200, the threaded tube to be compressed by the braking mechanism 300, and the steel wire 711 on the insertion part 700 to be pulled by the connecting mechanism 400 and the traction mechanism 500. This eliminates the hassle of directly installing the insertion part 700 onto the operating part housing. The fixture has a large space and is easy to operate. The compression degree of the threaded tube and the tightness of the steel wire 711 of the insertion part 700 can be adjusted in advance, facilitating the subsequent direct installation of the insertion part 700 and the operating part.

[0060] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A pre-installation fixture for an endoscope insertion section, characterized in that, include: Base (100): A fixing mechanism (200) is provided on the base (100) and the fixing mechanism (200) is used to fix the insertion part (700) of the endoscope. A braking mechanism (300) is slidably mounted on the base (100) along the direction of the steel wire placement. The braking mechanism (300) is located behind the fixing mechanism (200). The braking mechanism (300) is used to intercept the first threaded tube (710) on the insertion part (700). The steel wire (711) in the first threaded tube (710) can pass through the braking mechanism (300). A connecting mechanism (400) is disposed behind the braking mechanism (300), the connecting mechanism (400) being used to connect a steel wire (711) passing through the braking mechanism (300). A traction mechanism (500) is disposed behind the connecting mechanism (400), the traction mechanism (500) is connected to the connecting mechanism (400) for transmission, and the traction mechanism (500) is used to pull the steel wire (711) to drive the tip of the insertion part (700) to bend; The test mechanism (600) is connected to the traction mechanism (500) and is used to drive the traction mechanism (500) to bend the tip of the insertion part (700). The braking mechanism (300) includes: The slide table (310) is provided in two sets. The two sets of slide tables (310) are arranged side by side in the direction perpendicular to the steel wire. The slide table (310) is slidably arranged on the base (100) along the direction of the steel wire. A brake handle (320) is provided on the slide (310). The brake handle (320) and the slide (310) are provided in a one-to-one correspondence. The brake handle (320) is used to brake the slide (310). A threaded pipe retaining block (330) is disposed on the slide (310). The threaded pipe retaining block (330) and the slide (310) are disposed in a one-to-one correspondence. The threaded pipe retaining block (330) is provided with a second stepped hole (331). The large hole section of the second stepped hole (331) is disposed in front of the small hole section. The large hole section of the second stepped hole (331) is used to accommodate the first threaded pipe (710), and the small hole section of the second stepped hole (331) is used to pass through the steel wire (711). The slide (310) is used to drive the threaded tube retaining block (330) to press the first threaded tube (710). The connecting mechanism (400) includes: Two connecting blocks (410) are arranged side by side along the direction of the steel wire. The connecting blocks (410) are provided with a mounting cavity (411) and a stud (412). The mounting cavity (411) is used to accommodate the steel wire (711). A nut screw (420) is threaded onto the connecting block (410), and the nut screw (420) is used to press the steel wire (711) in the mounting cavity (411). An adjusting nut (430) is internally threaded at its front end to the stud (412), and its end is driven to the traction mechanism (500). The traction mechanism (500) includes: A connecting shaft (510) is rotatably connected to the base (100), and the axis of rotation of the connecting shaft (510) extends vertically; An angle hub (520) is fixedly connected to the connecting shaft (510). The angle hub (520) is coaxially arranged with the connecting shaft (510). The angle hub (520) is used to wind the traction steel wire (522). A test turntable (530) is fixedly connected to the connecting shaft (510), and the test turntable (530) and the connecting shaft (510) are coaxially arranged; An angle handle (540) is fixedly connected to the connecting shaft (510), and the angle handle (540) is used to drive the angle hub (520) to rotate; Mounting block (550) is provided on the base (100). The mounting block (550) is provided with two mounting grooves (551) extending along the direction of the steel wire placement. The mounting grooves (551) are used to install the second threaded pipe (552). The two traction heads of the traction steel wire (522) pass through the two second threaded tubes (552) respectively and are connected to the corresponding adjusting nuts (430).

2. The endoscope insertion pre-installation fixture according to claim 1, characterized in that, The fixing mechanism (200) includes: A placement platform (210) is connected to the base (100). The placement platform (210) extends along the direction of the steel wire placement and is used to support the insertion part (700). A fixing block (220) is connected to the base (100). The fixing block (220) is located at the rear end of the placement platform (210). The fixing block (220) is provided with a first stepped hole (221) extending along the wire placement direction and a threaded hole (222) extending vertically. The threaded hole (222) communicates with the first stepped hole (221). The small hole section of the first stepped hole (221) is located in front of the large hole section. The first stepped hole (221) is used to accommodate the insertion part (700). A clamping screw (230) is threaded into the threaded hole (222) and is used to lock the insertion part (700).

3. The endoscope insertion pre-installation fixture according to claim 2, characterized in that: It also includes a measuring ruler (340) disposed on the base (100) and used to quantify the movement distance of the slide (310).

4. The endoscope insertion pre-installation fixture according to claim 3, characterized in that, It also includes a clamping piece (440) which is housed in the mounting cavity (411) and is connected to the grommet screw (420). The grommet screw (420) is used to drive the clamping piece (440) to cooperate with the connecting block (410) to clamp the steel wire (711).

5. The endoscope insertion pre-installation fixture according to claim 4, characterized in that: A limiting shell (521) is connected to the angle hub (520), and the limiting shell (521) is used to prevent the traction wire (522) from coming out of the wire groove of the angle hub (520).

6. The endoscope insertion pre-installation fixture according to claim 1, characterized in that, The testing mechanism (600) includes a torque meter, the test end of which is detachably connected to the test turntable (530), and the torque meter is used to test torque.

7. A method of using a pre-installation fixture for an endoscope insertion section, characterized in that, The pre-installation fixture for the endoscope insertion section as described in claim 5 includes the following steps: During installation, one end of the insertion part (700) is a tip, and the other end is a fixed shaft. The tip of the insertion part (700) is inserted through the large hole section of the first stepped hole (221) until the end face of the fixed shaft abuts against the step of the first stepped hole (221). Then, the clamping screw (230) is screwed in to fix the end of the insertion part (700). The first threaded tube (710) and the steel wire (711) extending from the end of the insertion part (700) are inserted through the large hole section of the second stepped hole (331) until the end face of the first threaded tube (710) abuts against the step of the second stepped hole (331). The steel wire (711) can then be inserted through the step. The wire (711) moves freely inside the step hole and passes through the small hole section of the second step hole (331). The wire (711) is inserted into the mounting cavity (411). Then, the clamp (440) is driven by the nut screw (420) to press and fix the wire (711) on the connecting block (410). Then, the stud (412) is threaded to the adjusting nut (430). Then, the two traction heads of the traction wire (522) are respectively connected to the corresponding adjusting nuts (430). By adjusting the relative position of the adjusting nut (430) and the connecting block (410), the tightness of the wire (711) is adjusted. Adjustment: The first threaded tube (710) is initially in a relaxed state, and the end face of the first threaded tube (710) abuts against the step in the second stepped hole (331) of the threaded tube retaining block (330). The value L1 of the position of the slide (310) at this time is read from the measuring scale (340). The slide (310) is moved so that the first threaded tube (710) on the insertion part (700) is in a state of being pressed by the threaded tube retaining block (330). At the same time, the testing mechanism (600) is used to operate. The test turntable (530) rotates to drive the angle hub (520) to rotate, thereby pulling the traction wire (522) and driving the insertion part (700) to complete the bending action. When the torque value measured by the test mechanism (600) is a predetermined value, the brake handle (320) is pulled to fix the slide (310) on the base (100), and then the value L2 of the position of the slide (310) at this time is read from the measuring scale (340). Check and remove the test mechanism (600), turn the angle handle (540) to check the feel and bending angle of the insertion part (700), further check whether there is any abnormality in the installation effect of the tip of the insertion part (700), after confirming that there is no abnormality, calculate the compression length L of the first threaded tube (710) = L2-L1, and then remove the insertion part (700) from the device. Installation: Install the removed insertion part (700) onto the operating part of the endoscope, adjust the compression length of the first threaded tube (710) according to the L value calculated above, and then glue the end of the first threaded tube (710) onto the operating part.

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