CN115165633B - Endoscope bending fatigue testing system and method - Google Patents
Endoscope bending fatigue testing system and method Download PDFInfo
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- CN115165633B CN115165633B CN202211077998.6A CN202211077998A CN115165633B CN 115165633 B CN115165633 B CN 115165633B CN 202211077998 A CN202211077998 A CN 202211077998A CN 115165633 B CN115165633 B CN 115165633B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0023—Bending
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
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Abstract
The invention discloses an endoscope bending fatigue testing system and a testing method, comprising a supporting bottom plate, a fixed bracket, a hand wheel rotation steering engine driving device and a three-axis acceleration sensor; the supporting bottom plate is used for fixing and limiting the endoscope body of the endoscope; the fixed support is used for fixing a hand wheel rotating steering engine driving device; the first steering engine in the hand wheel rotation steering engine driving device controls the left and right hand wheel turntables to rotate so as to drive the left and right hand wheels to rotate and drive the snake bones of the endoscope to bend in the left and right directions, and the second steering engine controls the up and down hand wheel turntables to rotate through the synchronous belts so as to drive the up and down hand wheels to rotate and drive the snake bones of the endoscope to bend in the up and down directions; the triaxial acceleration sensor is arranged at a snake bone bending part of the endoscope and used for testing bending force and creep deformation conditions. The system can synchronously test the bending of the endoscope in four directions by belt pulley transmission, reduce the number of test equipment and prevent overload in the test process.
Description
Technical Field
The invention relates to the field of endoscope product reliability testing, in particular to an endoscope bending fatigue testing system and a testing method.
Background
An endoscope is a common medical device product, mainly comprises a bendable part, a light source and a group of lenses, enters a human body through a natural pore canal of the human body or enters the human body through a small incision made by an operation, can directly peep the change of the gastrointestinal cavity of a patient, and the bendable part needs to be bent frequently in the using process. The doctor is through direction hand wheel about operating and left and right direction hand wheel, and then the control is inserted the head and is crooked with different angles up, down, left and right four directions respectively to carry out multi-angle real-time observation.
As the endoscope is a medical product, the reliability and the service life of the endoscope are very critical, the quality of the endoscope is strictly controlled in the research and development process and the production inspection process, and the bending angle of the endoscope can reach 210 degrees, 90 degrees, 100 degrees on the left and 100 degrees on the right.
If the bending fatigue test limit life and the aging process of the endoscope are finished through manual test, uncontrollable factors such as poor repeatability and accuracy are caused, counting is not good, simple and rapid test is not good, and manpower is consumed. Through developing a test system, can automatic test and count fatigue bending number of times, the automatic volume production of being convenient for production line detects the accuse, and operation process is simple and convenient.
The existing endoscope bending fatigue testing device cannot timely detect whether the bending of the endoscope is bent in place or not during testing, so that the bending part of the endoscope possibly fails due to fatigue and cannot be bent in place during testing. And the existing endoscope bending fatigue testing device can not control two hand wheels to carry out the fatigue test of bending in the left-right direction and the up-down direction on the bending part of the endoscope at the same time.
Therefore, it is desirable to provide an endoscope bending fatigue testing system.
Disclosure of Invention
In order to overcome the defects of the prior art, the device and the method for testing the bending fatigue of the endoscope product are provided. The device can automatically test and present test results, can test in multiple angles and multiple directions, and has high test efficiency and good accuracy.
The invention is realized by the following technical scheme: the first aspect of the embodiment of the invention provides an endoscope bending fatigue testing system, which comprises a supporting bottom plate, a fixed support, a hand wheel rotation steering engine driving device and a three-axis acceleration sensor, wherein the supporting bottom plate is provided with a first end and a second end;
the supporting bottom plate is used for fixing the endoscope body and limiting the left direction, the right direction, the front direction, the rear direction and the lower direction of the endoscope body;
the bottom of the fixed support is fixed on the support bottom plate, and the fixed support is used for fixing a hand wheel rotation steering engine driving device;
the steering engine driving device for the hand wheel rotation comprises a first steering engine, a second steering engine, a first belt pulley, a second belt pulley, a synchronous belt, an up-down direction hand wheel turntable and a left-right direction hand wheel turntable; wherein, a plurality of operation clamping grooves are uniformly arranged on the circumference direction of the left and right hand wheel rotating discs and the up and down hand wheel rotating discs, the left and right hand wheels and the up and down hand wheels of the endoscope are connected through the operation clamping grooves respectively; the first steering engine controls the left and right hand wheel rotating discs to rotate so as to drive the left and right hand wheels to rotate and drive the snake bone of the endoscope to bend in the left and right directions, and the second steering engine controls the up and down hand wheel rotating discs to rotate through the synchronous belts so as to drive the up and down hand wheels to rotate and drive the snake bone of the endoscope to bend in the up and down directions;
the triaxial acceleration sensor is arranged at a snake bone bending part of the endoscope and used for testing bending force and creep deformation conditions.
Furthermore, a limiting groove and a limiting stop block are arranged on the supporting bottom plate, and foam or plastic rubber materials are arranged on the limiting groove and the limiting stop block.
Further, the fixing support is designed to be in a shape of a Chinese character ji.
Furthermore, the top of the fixed support is fixed with the first steering engine and the second steering engine.
Further, output shafts of the first steering engine and the second steering engine are respectively connected with a steering wheel; the first steering engine is fixed with the left and right hand wheel turnplates through a rudder plate; the second steering engine is fixed with the adapter through a steering wheel, and the adapter is fixed with the second belt pulley; the second belt pulley drives the first belt pulley to rotate through synchronous belt transmission.
Furthermore, the first belt pulley is fixed on the hand wheel rotating disc in the up-down direction through a threaded hole in the bearing inner ring fixing piece, the bearing inner diameter is installed on the bearing inner ring fixing piece, and the bearing outer ring is fixed on the sheet metal support through the bearing outer ring fixing piece.
Further, the three-axis acceleration sensor is an MPU6050 three-axis acceleration sensor.
Furthermore, the endoscope bending fatigue testing system also comprises a PCB circuit board and a display screen; the PCB and the display screen are fixed on the supporting bottom plate; the PCB circuit board comprises a microcontroller MCU, the microcontroller MCU calculates data acquired by the triaxial acceleration sensor and displays the test times, bending force and creep deformation conditions in the upper direction, the lower direction, the left direction and the right direction through a display screen; the PCB circuit board is connected with an external power supply.
Further, the transmission ratio of the synchronous belt is 2:1.
the second aspect of the embodiment of the present invention provides an endoscope bending fatigue testing method, which is implemented based on the endoscope bending fatigue testing system, and specifically includes the following steps:
step a: the endoscope body of the endoscope is arranged and fixed on a supporting bottom plate, a conductive connecting line is pasted at the bent snake bone part at the front end of the endoscope, and the conductive connecting line is connected with a triaxial acceleration sensor;
step b: the second steering engine rotates to drive the left and right hand wheel turnplate to rotate, and further drives the left and right hand wheels of the endoscope to rotate, so that the snake bones of the endoscope bend towards the left by 100 degrees and bend towards the right by 100 degrees respectively;
meanwhile, the first steering engine rotates to drive the second belt pulley to rotate, and further drives the hand wheel in the up-and-down direction of the endoscope to rotate, so that the snake bone of the endoscope is bent upwards by 210 degrees and downwards by 90 degrees respectively;
step c: and c, cycling the step b for a plurality of times, and testing the bending fatigue for the specified times.
Compared with the prior art, the invention has the following beneficial effects: according to the endoscope bending fatigue testing system, through automatic detection, manpower is greatly reduced, cost is saved, production testing efficiency is improved, the problem of fatigue fracture in the actual use process is exposed in advance, product reliability is improved, and product consistency is improved. The uncontrollable performance and the inspection cost of manual inspection are reduced, and the test result is more real, accurate and precise. The device provided by the invention has the advantages that the weight of the main body is borne by the supporting bottom plate (the objective table), so that the steering engine is selected for driving, the control method is simple, the structure is simple, the power consumption is low, the cost is low, the maintenance is easy, and the accuracy and the stability of the system are improved. The system can synchronously test the bending of the endoscope in four directions by belt pulley transmission, reduce the number of test equipment and prevent overload in the test process. According to the invention, the bending part of the endoscope is connected with the three-axis acceleration sensor, so that the defect that the prior art cannot sense the small changes such as the creep deformation of the steel wire in the test process is overcome, the judgment of whether the steel wire is completely bent or not and whether the steel wire is bent consistently or not at each time is facilitated, and the test precision, accuracy and consistency are improved. The invention can also display the bending fatigue times and progress in the upper, lower, left and right directions of the test through the counting screen, and is more intuitive.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention.
FIG. 1 is a schematic overall axial view of the present invention;
FIG. 2 is a schematic axial view of the mounting bracket of the present invention;
FIG. 3 is a schematic axial view of the transmission portions of the left and right hand wheel turntables and the upper and lower hand wheel turntables;
FIG. 4 is a cross-sectional view of the transmission of the present invention;
FIG. 5 is a schematic view of the structure of a left-right hand wheel and a up-down hand wheel;
FIG. 6 is a schematic view of a three-axis acceleration sensor mounting;
in the figure, 1, an endoscope body; 2. a support base plate; 31. A first steering engine; 32. a second steering engine; 4. a bearing outer ring fixing member; 5. a first pulley; 6. a second pulley; 7. a synchronous belt; 8. an adapter; 9. a sheet metal bracket; 10. a hand wheel turntable in the up-down direction; 11. a left and right hand wheel turntable; 12. a bearing; 13. a bearing inner race fixing member; 14. a left and right hand wheel; 15. a hand wheel in the up-down direction; 16. MPU6050 three-axis acceleration sensor; 17. and a conductive connection line.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present invention. The word "if," as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination," depending on the context.
The present invention will be described in detail below with reference to the accompanying drawings. The features of the following examples and embodiments may be combined with each other without conflict.
The endoscope bending fatigue testing system is developed, so that testing manpower and material resources can be saved, four angle bending tests such as up-down, left-right and the like can be synchronously performed, the testing angle is adjustable, the testing times and other processes are visualized, and overload in the testing process is prevented through synchronous belt connection. The life-span of testable endoscope bending fatigue for the different ageing fatigue life that the research was changed material, structure etc. and is brought, carries out ageing fatigue test in advance before shipment, can expose multiple quality problem in advance: such as the cold joint between the drawn wire and the snake bone, whether the key part of the whole machine is installed in place or not, correct installation and the like. And an MPU6050 triaxial acceleration sensor is arranged at the bending part of the endoscope, so that the bending force can be tested, the creep process can be included, the testing precision is improved, and whether the bending is complete or consistent can be judged.
As shown in fig. 1, the invention provides a system for testing bending fatigue of an endoscope, which comprises a support base plate 2, a fixed bracket and a hand wheel rotation steering engine driving device;
the supporting base plate 2 is provided with a limiting groove and a limiting stop block for fixing and limiting the endoscope body 1 so as to limit the endoscope body 1 to five directions, namely left, right, front, back and down. Wherein, the steering engine driving device is rotated by a hand wheel above the endoscope body 1 for limiting. Furthermore, in order to reduce the abrasion of the endoscope body 1, foam or plastic rubber materials are arranged on a limit groove and a limit stop block which are in contact with the endoscope body 1 for buffering. The support base plate 2 is placed on a test bench.
As shown in fig. 2, the fixing bracket is designed into a shape like a Chinese character ji, the bottom of the fixing bracket is fixed on the supporting bottom plate 2 through bolts, and the top of the fixing bracket is used for fixing a first steering engine 31 and a second steering engine 32 in the hand wheel rotation steering engine driving device. Preferably, in the embodiment of the present invention, the fixing bracket is a sheet metal bracket 9.
As shown in fig. 3 and 4, the hand wheel rotation steering engine driving device includes a first steering engine 31, a second steering engine 32, a first belt pulley 5, a second belt pulley 6, a synchronous belt 7, an adaptor 8, an up-down hand wheel turntable 10, and a left-right hand wheel turntable 11; the left and right hand wheel turntables 11 and the up and down hand wheel turntables 10 are uniformly provided with a plurality of operation clamping grooves in the circumferential direction, and are respectively connected with the left and right hand wheels 14 and the up and down hand wheels 15 through the operation clamping grooves, wherein the left and right hand wheels 14 and the up and down hand wheels 15 are as shown in fig. 5. The first steering engine 31 controls the left and right hand wheel rotating discs 11 to rotate, drives the left and right hand wheels 14 to rotate, and drives the snake bone of the endoscope to bend in the left and right directions, and the second steering engine 32 controls the up and down hand wheel rotating discs 10 to rotate through the synchronous belts, drives the up and down hand wheels 15 to rotate, and drives the snake bone of the endoscope to bend in the up and down directions.
Specifically, the first steering engine 31 and the second steering engine 32 are fixed to the top of the fixed bracket through bolts. And output shafts of the first steering engine 31 and the second steering engine 32 are respectively connected with a steering wheel. The first steering engine 31 is fixed with the left and right hand wheel turnplate 11 through a rudder plate. The second steering engine 32 is fixed with the adapter 8 through a rudder disc, and the adapter 8 is fixed with the second belt pulley 6. The second belt pulley 6 and the first belt pulley 5 are driven by a synchronous belt 7. The first belt pulley 5 is fixed on a hand wheel rotating disc 10 in the up-down direction through a threaded hole in a bearing inner ring fixing piece 13, the inner diameter of a bearing 12 is installed on the bearing inner ring fixing piece 13, and the outer ring of the bearing 12 is fixed on a sheet metal support 9 through a bearing outer ring fixing piece 4 so as to guarantee the rotation coaxiality. Through the conveying of the synchronous belt, the bending of the endoscope in four directions can be synchronously tested, the number of testing devices is reduced, and the overload in the testing process is effectively prevented.
As shown in FIG. 6, a triaxial acceleration sensor 16 is arranged at the bending snake bone of the endoscope to test the bending force and the creep condition, so that the bending angle of the snake bone at the front end is accurately controlled, and the bending fatigue test precision is improved. The snake bone part at the front bending end is connected with a triaxial acceleration sensor 16 through a conductive connecting wire 17, and the conductive connecting wire 17 can be fixed at the front bending end of the endoscope through an adhesive (repeatedly spliced). The triaxial acceleration sensor 16 can sense the bending force during testing, can sense and feed back when creep occurs or abnormality occurs during testing, and can suspend testing to readjust resetting when necessary, so that testing precision can be improved, and changes during testing can be obtained. Illustratively, the MPU6050 three-axis acceleration sensor is selected as the three-axis acceleration sensor 16 in the embodiment of the present invention. The three-axis acceleration sensor is adopted, so that the bending angle of the front-end snake bone is accurately controlled, the testing precision is greatly improved, the problem that the prior art cannot sense the changes such as steel wire creep deformation in the testing process is solved, the bending consistency and the bending in place at each time can be ensured, and the bending can be suspended and adjusted in place when the changes occur.
Furthermore, the invention also comprises a PCB circuit board and a display screen; the PCB circuit board and the display screen can be fixed on the supporting bottom plate 2. The PCB comprises a PCB circuit board, wherein the PCB circuit board comprises a microcontroller MCU, the microcontroller MCU calculates data collected by the triaxial acceleration sensor and displays the test times and states through a display screen, and the test times comprise the times in the upper direction, the lower direction, the left direction and the right direction. The PCB circuit board is connected with an external power supply. In the embodiment of the invention, the microcontroller MCU includes but is not limited to STC15 series, STM8 series, STM32 series, and the like. The display screen includes but is not limited to an LCD display screen and the like.
In conclusion, the endoscope bending fatigue test provided by the invention can simultaneously carry out the cyclic bending tests in the upper direction, the lower direction, the left direction and the right direction, the steering engine can accurately control the rotation angle of the hand wheel so as to accurately control the bending angle of the snake bone at the front end, and the times of the fatigue tests are recorded and displayed on the display screen. The main body of the device is arranged on the test board by gravity, the required driving force is small, a steering engine with small power can be adopted, and the test energy consumption is saved.
In another aspect of the embodiments of the present invention, a method for testing bending fatigue aging of an endoscope is provided, where a test driving process includes the following steps:
step a: the endoscope body 1 is installed and fixed, a conductive connecting wire 17 is pasted at the bent snake bone part at the front end of the endoscope, and the MPU6050 triaxial acceleration sensor 16 is connected through the conductive connecting wire 17.
Step b: turning on a power supply, setting an adjusted program, turning a hand wheel to the left by a specific angle to enable the snake bone to turn to the left by 100 degrees, then turning the hand wheel to the right by a specific angle to enable the snake bone to turn to the right by 100 degrees, then turning the hand wheel to the up by a specific angle to enable the snake bone to turn to the up by 210 degrees, finally turning the hand wheel to the down by a specific angle to enable the snake bone to turn to the down by 100 degrees, and sequentially circulating. The method specifically comprises the following substeps:
step b1: the second steering engine 32 rotates at a certain angle and speed, so that the left and right hand wheel turnplates 11 are driven to rotate at a certain angle, the left and right hand wheels 14 of the endoscope rotate, and finally the snake bones of the endoscope can rotate towards the left and the right at specified angles respectively; wherein the bend is 100 ° to the left and 100 ° to the right.
Step b2: the first steering engine 31 rotates at a certain angle and speed, so as to drive the second belt pulley 6 to rotate, in the embodiment of the invention, the first belt pulley 5 and the second belt pulley 6 rotate in a ratio of 2:1, a synchronous belt 7 is used for driving the rotation, a first belt pulley 5 is rotated to drive an up-and-down hand wheel rotating disc 10 to rotate, then an up-and-down hand wheel 15 of the endoscope rotates, and finally the snake bone of the endoscope can rotate upwards and downwards at a designated angle respectively; wherein the bending is 210 degrees upwards and 90 degrees downwards.
Step c: and c, cycling the step b for a plurality of times, and testing the bending fatigue for the specified times.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures or equivalent flow transformations made by using the contents of the specification and the drawings, or applied directly or indirectly to other related systems, are included in the scope of the present invention.
Claims (7)
1. An endoscope bending fatigue testing system is characterized by comprising a supporting bottom plate, a fixed support, a hand wheel rotation steering engine driving device and a three-axis acceleration sensor;
the supporting bottom plate is provided with a limiting groove and a limiting stop block and is used for fixing the endoscope body and limiting the left, right, front, back and lower directions of the endoscope body;
the bottom of the fixed support is fixed on the supporting bottom plate, and the fixed support is used for fixing a hand wheel rotation steering engine driving device;
the hand wheel rotation steering engine driving device comprises a first steering engine, a second steering engine, a first belt pulley, a second belt pulley, a synchronous belt, an up-down hand wheel turntable and a left-right hand wheel turntable; the left and right hand wheel turntables and the up and down hand wheel turntables are uniformly provided with a plurality of operation clamping grooves in the circumferential direction and are respectively connected with a left and right hand wheel and an up and down hand wheel of the endoscope through the operation clamping grooves; the first steering engine controls the left and right hand wheel turntables to rotate to drive the left and right hand wheels to rotate and drive the snake bones of the endoscope to bend in the left and right directions, and the second steering engine controls the up and down hand wheel turntables to rotate through the synchronous belts to drive the up and down hand wheels to rotate and drive the snake bones of the endoscope to bend in the up and down directions;
the top of the fixed support is fixed with the first steering engine and the second steering engine; the output shafts of the first steering engine and the second steering engine are respectively connected with a steering wheel; the first steering engine is fixed with a left-right direction hand wheel turntable through a steering wheel; the second steering engine is fixed with the adapter through a steering wheel, and the adapter is fixed with the second belt pulley; the second belt pulley drives the first belt pulley to rotate through the transmission of the synchronous belt; the first belt pulley is fixed on the hand wheel turntable in the up-and-down direction through a threaded hole in the bearing inner ring fixing piece, the bearing inner diameter is arranged on the bearing inner ring fixing piece, and the bearing outer ring is fixed on the fixing support through the bearing outer ring fixing piece;
the triaxial acceleration sensor is arranged at the bent snake bone at the front end of the endoscope through a conductive connecting wire and used for testing bending force and creep condition and judging whether the snake bone of the endoscope is bent completely or not at each time.
2. The endoscope bending fatigue testing system of claim 1, wherein the limit groove and the limit stop are provided with foam or plastic rubber material.
3. The endoscopic bending fatigue testing system according to claim 1, wherein the fixing bracket is designed in a "zigzag" shape.
4. The endoscope bending fatigue testing system of claim 1, wherein the three-axis acceleration sensor is an MPU6050 three-axis acceleration sensor.
5. The endoscopic bending fatigue testing system according to claim 1, further comprising a PCB circuit board, a display screen; the PCB and the display screen are fixed on the supporting bottom plate; the PCB circuit board comprises a microcontroller MCU, the microcontroller MCU calculates data collected by the triaxial acceleration sensor and displays the test times, bending force and creep deformation conditions in the upper direction, the lower direction, the left direction and the right direction through a display screen; the PCB circuit board is connected with an external power supply.
6. The endoscopic bending fatigue testing system according to claim 1, wherein the transmission ratio of the synchronous belt is 2:1.
7. an endoscope bending fatigue testing method based on the endoscope bending fatigue testing system of any one of the claims 1-6, characterized in that the method specifically comprises the following steps:
step a: the endoscope body of the endoscope is arranged and fixed on a supporting bottom plate, a conductive connecting line is pasted at the bent snake bone part at the front end of the endoscope, and the conductive connecting line is connected with a triaxial acceleration sensor;
step b: the second steering engine rotates to drive the left and right hand wheel turnplate to rotate, and further drives the left and right hand wheels of the endoscope to rotate, so that the snake bones of the endoscope bend towards the left by 100 degrees and bend towards the right by 100 degrees respectively;
meanwhile, the first steering engine rotates to drive the second belt pulley to rotate, and further drives the hand wheel in the up-and-down direction of the endoscope to rotate, so that the snake bone of the endoscope is bent upwards by 210 degrees and downwards by 90 degrees respectively;
step c: and c, cycling the step b for a plurality of times, and testing the bending fatigue for the specified times.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006314775A (en) * | 2005-04-12 | 2006-11-24 | Olympus Corp | Endoscope system |
| JP2009061014A (en) * | 2007-09-05 | 2009-03-26 | Fujifilm Corp | Hardness measuring apparatus, hardness measuring method and endoscopic system |
| JP2017003822A (en) * | 2015-06-11 | 2017-01-05 | オリンパス株式会社 | Endoscope device |
| CN111721519A (en) * | 2020-06-28 | 2020-09-29 | 上海安翰医疗技术有限公司 | Endoscope insertion portion testing device |
| CN113267332A (en) * | 2021-06-18 | 2021-08-17 | 重庆金山医疗技术研究院有限公司 | Hand wheel rotating mechanism and electronic endoscope bending part fatigue testing device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002177198A (en) * | 2000-10-02 | 2002-06-25 | Olympus Optical Co Ltd | Endoscope |
| CN210401105U (en) * | 2019-06-24 | 2020-04-24 | 珠海视新医用科技有限公司 | Endoscope bending fatigue strength tester |
| CN114577632B (en) * | 2022-05-05 | 2022-09-23 | 珠海视新医用科技有限公司 | Endoscope insertion tube bending fatigue testing device and method |
-
2022
- 2022-09-05 CN CN202211077998.6A patent/CN115165633B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006314775A (en) * | 2005-04-12 | 2006-11-24 | Olympus Corp | Endoscope system |
| JP2009061014A (en) * | 2007-09-05 | 2009-03-26 | Fujifilm Corp | Hardness measuring apparatus, hardness measuring method and endoscopic system |
| JP2017003822A (en) * | 2015-06-11 | 2017-01-05 | オリンパス株式会社 | Endoscope device |
| CN111721519A (en) * | 2020-06-28 | 2020-09-29 | 上海安翰医疗技术有限公司 | Endoscope insertion portion testing device |
| CN113267332A (en) * | 2021-06-18 | 2021-08-17 | 重庆金山医疗技术研究院有限公司 | Hand wheel rotating mechanism and electronic endoscope bending part fatigue testing device |
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