Endoscope cleaning and disinfecting method, system and device
Through the multi-dimensional vibration disinfection technology driven by the vibration controller, the problems of incomplete disinfection and inefficiency in traditional endoscopic cleaning and disinfection methods are solved, and faster and more stable disinfection effects are achieved, protecting the precision of the endoscopic Parts and extends service life.
Patent Information
- Application Number
- CN202411395879.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2024-12-27
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Traditional endoscopic cleaning and disinfection methods have problems such as incomplete disinfection, low efficiency, susceptible damage to the equipment and inconsistent operation, which is difficult to meet the high-intensity use needs of hospitals, and there are safety hazards and unstable disinfection effects.
The vibration controller is used to accurately control multiple vibrators in the vibration tank to efficiently and uniformly vibrating the endoscope. Through the synergy between multi-dimensional vibration waves and cleaning and disinfection solutions, it covers all parts of the endoscope, including The tiny gaps and curved parts achieve a more thorough disinfection effect.
Improve disinfection speed and efficiency, meet the hospital's high-intensity usage needs, protect the precision components and imaging quality of the endoscope, extend the service life, and through intelligent and automated control, the interference of human factors is reduced and the disinfection effect is improved. stability.
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Figure CN119185611A_ABST
Abstract
Description
Technical Field
[0001] The invention provides an endoscope cleaning and disinfecting method, system and device, belonging to the technical field of endoscope cleaning. Background Art
[0002] In the modern medical field, endoscopes, as an important diagnostic and treatment tool, are widely used in the examination and treatment of ear, nose and throat diseases. Since they are in direct contact with the patient's internal tissues, the thoroughness of their cleaning and disinfection is directly related to the patient's medical safety and health. However, traditional endoscope cleaning and disinfection methods have many challenges, such as incomplete disinfection, low disinfection efficiency, and easy damage to the equipment, all of which greatly affect the use effect and medical quality of endoscopes.
[0003] Traditional endoscope cleaning and disinfection methods mainly rely on chemical disinfectants and manual cleaning, which makes it difficult to completely remove microorganisms and organic residues on the surface of the endoscope and in the pipeline. In particular, the tiny gaps and curved parts in the pipeline become blind spots for disinfection, increasing the risk of cross-infection. The manual cleaning and disinfection process is cumbersome and time-consuming, and it is difficult to meet the needs of high-intensity use in hospitals. At the same time, due to the inconsistency of manual operation, the disinfection effect is difficult to guarantee, and there are safety hazards. The structure of the endoscope is complex, containing precision lenses, pipelines, interfaces and other components. Traditional cleaning and disinfection methods, such as high-pressure water gun flushing and ultrasonic cleaning, may cause damage to the endoscope, affecting its service life and imaging quality. Most of the existing cleaning and disinfection equipment lacks intelligent control and cannot be accurately adjusted according to the specific situation of the endoscope and user needs, resulting in unstable disinfection effect. Summary of the invention
[0004] The present invention provides an endoscope cleaning and disinfection method, system and device, the core of which is to use a vibration controller to accurately control multiple vibrators in a vibration tank to perform efficient and uniform vibration disinfection on the endoscope, so as to solve the technical problems existing in the above-mentioned prior art. The technical solutions adopted are as follows:
[0005] A method for cleaning and disinfecting an endoscope, comprising:
[0006] The vibration controller determines in real time whether the vibration start instruction and the required duration of disinfection vibration input by the user are received;
[0007] When the vibration controller receives the vibration start instruction, it starts the multiple vibrators installed in the vibration tank respectively to perform vibration disinfection on the endoscope in the vibration tank; wherein the start vibration tank contains a cleaning and disinfection solution;
[0008] During the vibration disinfection process of the endoscope, the vibration intensity of each vibrator is regulated by the vibration controller.
[0009] Furthermore, the multiple vibrators include a first vibrator, a second vibrator and a third vibrator; wherein the first vibrator is installed at the center position of the bottom inner surface of the vibration groove; the second vibrator and the third vibrator are respectively installed inside two opposite side walls of the vibration groove, and the installation heights of the second vibrator and the third vibrator are inconsistent.
[0010] Further, when the vibration controller receives the vibration start instruction, it starts the multiple vibrators installed inside the vibration tank respectively to perform vibration disinfection on the endoscope in the vibration tank, including:
[0011] When the vibration controller receives the vibration start instruction, it controls the first vibrator installed at the center position of the bottom inner surface of the vibration tank to start according to the preset first initial vibration frequency and first initial vibration intensity;
[0012] At the end of the first vibration duration after the first vibrator is started, starting the second vibrator or the third vibrator near the bottom of the vibration groove among the second vibrator and the third vibrator according to the second initial vibration frequency and the second initial vibration intensity;
[0013] At the end of the second vibration duration after the second vibrator or the third vibrator is started, the third vibrator or the second vibrator far from the bottom of the vibration groove among the second vibrator and the third vibrator is started at a third initial vibration frequency and a third initial vibration intensity.
[0014] Further, when the vibration controller receives the vibration start instruction, it controls the first vibrator installed at the center position of the bottom inner surface of the vibration tank to start according to the preset first initial vibration frequency and first initial vibration intensity, including:
[0015] When the vibration controller receives the vibration start instruction, it retrieves the disinfection vibration requirement duration input by the user;
[0016] The first initial vibration frequency and the first initial vibration intensity are set according to the disinfection vibration requirement duration input by the user; wherein the first initial vibration frequency is obtained by the following formula:
[0017]
[0018] Among them, F 01 Represents the first initial vibration frequency; F x represents the average vibration frequency of the three vibrators corresponding to the last endoscope cleaning and disinfection performed by the user. When the current endoscope cleaning and disinfection is the first cleaning operation of the endoscope cleaning and disinfection device, let F x =1.5F c ; Tc Indicates the preset reference duration; T x Indicates the required disinfection vibration duration input by the user; F c represents a preset reference vibration frequency, and the preset reference vibration frequency is obtained by the following formula:
[0019]
[0020] Among them, F c represents a preset reference vibration frequency; n represents the number of components included in the endoscope (the endoscope is a conventional common endoscope); E i represents the Young's modulus corresponding to the i-th component; ρ i represents the material density corresponding to the i-th component; K represents the preset safety factor, and the value range of the safety factor is 0.58-0.76; x represents the digit sign parameter, and when ε is a negative number, let x=1; when ε is a positive number, let x=-0.53; ε represents the safety factor adjustment parameter, and the safety factor adjustment parameter is obtained by the following formula:
[0021]
[0022] Wherein, ε represents the safety factor adjustment parameter; n represents the number of components included in the endoscope (the endoscope is a conventional common endoscope); E i represents the Young's modulus corresponding to the i-th component; ρ i represents the material density corresponding to the i-th component; E max and E min represents the maximum and minimum values of Young's modulus corresponding to the n components contained in the endoscope; ρ max The maximum value of the Young's modulus of the endoscope corresponds to the density of the component; ρ min The minimum value of the Young's modulus of the endoscope corresponds to the density of the component;
[0023] Furthermore, the first initial vibration intensity is obtained by the following formula:
[0024]
[0025] Among them, S 01 Represents the first initial vibration intensity; S c represents a preset reference vibration intensity, and the reference vibration intensity is the minimum vibration intensity allowed to achieve the purpose of disinfection; S xp represents the average value of the initial vibration frequencies of the three vibrators corresponding to the last endoscope cleaning and disinfection performed by the user. When the current endoscope cleaning and disinfection is the first cleaning operation of the endoscope cleaning and disinfection device, let S xp =1.2Sc ; T c Indicates the preset reference duration; T x Indicates the required disinfection vibration duration input by the user;
[0026] A first vibrator installed at a central position of the bottom inner surface of the vibration groove is started according to the first initial vibration frequency and the first initial vibration intensity.
[0027] Further, at the end of the first vibration duration after the first vibrator is started, the second vibrator or the third vibrator near the bottom of the vibration groove among the second vibrator and the third vibrator is started according to the second initial vibration frequency and the second initial vibration intensity, including:
[0028] After the first vibrator is started, the vibration controller retrieves the required disinfection vibration duration input by the user;
[0029] The second initial vibration frequency and the second initial vibration intensity are set according to the disinfection vibration requirement duration input by the user in combination with the first initial vibration frequency and the first initial vibration intensity, wherein the second initial vibration frequency is obtained by the following formula:
[0030]
[0031] Among them, F 02 Represents the second initial vibration frequency; F 01 Represents the first initial vibration frequency; F c Indicates the preset reference vibration frequency; T c Indicates the preset reference duration; T x represents the required disinfection vibration duration input by the user; w represents the first symbol adjustment parameter, and the first symbol adjustment parameter is as follows:
[0032] When F 01 -F c With T c -T x If the positive and negative signs are the same, let w = -1;
[0033] When F 01 -F c With T c -T x When the positive and negative signs of are different, let w=1;
[0034] Furthermore, the second initial vibration intensity is obtained by the following formula:
[0035]
[0036] Among them, S 02 Represents the second initial vibration intensity; S01 Represents the first initial vibration intensity; S c represents a preset reference vibration intensity, and the reference vibration intensity is the minimum vibration intensity allowed to achieve the purpose of disinfection; T c Indicates the preset reference duration; T x represents the required disinfection vibration duration input by the user; w represents the first symbol adjustment parameter,
[0037] At the end of the preset first vibration duration, the vibration controller starts the second vibrator or the third vibrator near the bottom of the vibration groove according to the second initial vibration frequency and the second initial vibration intensity; wherein the value range of the first vibration duration is 2.5-5s.
[0038] Further, at the end time of the second vibration duration after the second vibrator or the third vibrator is started, the third vibrator or the second vibrator far from the bottom of the vibration groove among the second vibrator and the third vibrator is started according to the third initial vibration frequency and the third initial vibration intensity, including:
[0039] After the second vibrator or the third vibrator near the bottom of the vibration tank is started, the vibration controller retrieves the required disinfection vibration duration input by the user;
[0040] The third initial vibration frequency and the third initial vibration intensity are set according to the disinfection vibration requirement duration input by the user in combination with the second initial vibration frequency and the second initial vibration intensity, wherein the third initial vibration frequency is obtained by the following formula:
[0041]
[0042] Among them, F 03 Indicates the third initial vibration frequency; F 02 Represents the second initial vibration frequency; F 01 Represents the first initial vibration frequency; F c Indicates the preset reference vibration frequency; T c Indicates the preset reference duration; T x represents the required disinfection vibration duration input by the user; k represents the second symbol adjustment parameter, and the second symbol adjustment parameter is as follows:
[0043] When F 01 -F 02 With T c -T x If the positive and negative signs are the same, let k = -1;
[0044] When F 01 -F 02 With T c-T x If the positive and negative signs of are different, let k = 1;
[0045] Furthermore, the third initial vibration intensity is obtained by the following formula:
[0046]
[0047] Among them, S 03 Indicates the third initial vibration intensity; S 02 Represents the second initial vibration intensity; S 01 represents the first initial vibration intensity; T c Indicates the preset reference duration; T x represents the required duration of disinfection vibration input by the user; k represents the second symbol adjustment parameter;
[0048] At the end of the preset second vibration duration, the vibration controller starts the third vibrator or the second vibrator away from the bottom of the vibration groove according to the third initial vibration frequency and the third initial vibration intensity; wherein the value range of the second vibration duration is 2-3s.
[0049] Furthermore, during the vibration disinfection process of the endoscope, the vibration intensity of each vibrator is regulated by the vibration controller, including:
[0050] Extract the disinfection vibration requirement duration input by the user;
[0051] Obtaining a first target vibration intensity corresponding to the first vibrator according to the required disinfection vibration duration input by the user;
[0052] According to the first initial vibration frequency corresponding to the first vibrator, the vibration intensity corresponding to the first vibrator is adjusted back and forth between the first initial vibration intensity and the first target vibration intensity until the disinfection vibration requirement input by the user is reached; wherein the single adjustment continuous vibration duration corresponding to the first initial vibration intensity and the first target vibration intensity is 3s-5s;
[0053] Obtaining a second target vibration intensity corresponding to the second vibrator or the third vibrator near the bottom of the vibration groove according to the required disinfection vibration duration input by the user;
[0054] According to the second initial vibration frequency corresponding to the second vibrator or the third vibrator near the bottom of the vibration groove, the vibration intensity corresponding to the second vibrator or the third vibrator near the bottom of the vibration groove is adjusted between the second initial vibration intensity and the second target vibration intensity, and the vibration intensity is adjusted back and forth until the required disinfection vibration duration input by the user is reached; wherein the single adjustment continuous vibration duration corresponding to the second initial vibration intensity and the second target vibration intensity is 3s-5s;
[0055] Obtaining a third target vibration intensity corresponding to the third vibrator or the second vibrator away from the bottom of the vibration groove according to the required disinfection vibration duration input by the user;
[0056] According to the third initial vibration frequency corresponding to the third vibrator or the second vibrator away from the bottom of the vibration groove, the vibration intensity corresponding to the third vibrator or the second vibrator away from the bottom of the vibration groove is adjusted back and forth between the third initial vibration intensity and the third target vibration intensity until the required disinfection vibration duration input by the user is reached, wherein the single adjustment continuous vibration duration corresponding to the third initial vibration intensity and the third target vibration intensity is 3s-5s.
[0057] Furthermore, the first target vibration intensity is obtained by the following formula:
[0058]
[0059] Among them, S 01m Indicates the first target vibration intensity; S 03 Indicates the third initial vibration intensity; S 02 Represents the second initial vibration intensity; S 01 represents the first initial vibration intensity; T c Indicates the preset reference duration; T x represents the required disinfection vibration duration input by the user; s represents the first intensity regulation coefficient, and the first intensity regulation coefficient is obtained by the following formula:
[0060]
[0061] Where s represents the first intensity control coefficient; S 03 Indicates the third initial vibration intensity; S 02 Represents the second initial vibration intensity; S 01 Represents the first initial vibration intensity; S c Indicates a preset reference vibration intensity, and the reference vibration intensity is the minimum vibration intensity allowed to achieve the purpose of disinfection;
[0062] At the same time, the second target vibration intensity is obtained by the following formula:
[0063]
[0064] Among them, S 02m Indicates the second target vibration intensity; S 01m Indicates the first target vibration intensity; S 02 Represents the second initial vibration intensity; S 01 represents the first initial vibration intensity; Tc Indicates the preset reference duration; T x represents the required duration of disinfection vibration input by the user; s represents the first intensity control coefficient;
[0065] Furthermore, the third target vibration intensity is obtained by the following formula:
[0066]
[0067] Among them, S 03m Indicates the third target vibration intensity; S 02m Indicates the second target vibration intensity; S 01m Indicates the first target vibration intensity; S 03 Indicates the third initial vibration intensity; S 02 Represents the second initial vibration intensity; S 01 represents the first initial vibration intensity; T c Indicates the preset reference duration; T x represents the required disinfection vibration duration input by the user; s represents the first intensity control coefficient; h represents the second intensity control coefficient, and the second intensity control coefficient is obtained by the following formula:
[0068]
[0069] Wherein, h represents the second intensity control coefficient; S 02m Indicates the second target vibration intensity; S 01m Indicates the first target vibration intensity; S 02 Represents the second initial vibration intensity; S 01 Indicates the first initial vibration intensity.
[0070] An endoscope cleaning and disinfection system, the endoscope cleaning and disinfection system comprising:
[0071] The command information monitoring module is used to control the vibration controller to determine in real time whether the vibration start command input by the user and the required duration of disinfection vibration are received;
[0072] An initial vibration control module is used to respectively start a plurality of vibrators installed inside the vibration tank after the vibration controller receives a vibration start instruction, so as to perform vibration disinfection on the endoscope in the vibration tank; wherein the start vibration tank contains a cleaning and disinfection solution;
[0073] The vibration control module is used to control the vibration intensity of each vibrator through the vibration controller during the vibration disinfection process of the endoscope.
[0074] An endoscope cleaning and disinfecting device comprises a vibration trough, a first vibrator, a second vibrator, a third vibrator and a vibration controller; wherein the first vibrator is installed at the center position of the bottom inner surface of the vibration trough; the second vibrator and the third vibrator are respectively installed inside two opposite side walls of the vibration trough; the vibration control signal output end of the vibration controller is connected to the control signal input ends of the first vibrator, the second vibrator and the third vibrator; the parameter signal output end of the touch display screen is connected to the parameter signal input end of the vibration controller; and at the same time, the two vibrators installed inside the two opposite side walls of the vibration trough are installed at different heights.
[0075] Beneficial effects of the present invention:
[0076] The endoscope cleaning and disinfection method, system and device proposed by the present invention have the synergistic effect of multi-dimensional vibration waves and cleaning and disinfection solutions, which can more comprehensively cover various parts of the endoscope, especially those small gaps and curved parts that are difficult to clean, thereby achieving a more thorough disinfection effect. Compared with traditional chemical disinfection and manual cleaning methods, vibration disinfection technology has a faster disinfection speed, can meet the needs of high-intensity use in hospitals, and improve work efficiency. By accurately controlling the vibration intensity of the vibrator, damage to the endoscope caused by excessive vibration can be avoided, its precision components and imaging quality can be protected, and its service life can be extended. The user only needs to input the vibration start instruction and the required disinfection vibration time through a simple operation interface to start the entire disinfection process, without the need for complicated operation steps and professional knowledge, reducing the labor intensity of medical personnel. The introduction of the vibration controller realizes the intelligence and automation of the disinfection process, improves the stability and reliability of the disinfection effect, and reduces the interference and errors of human factors. BRIEF DESCRIPTION OF THE DRAWINGS
[0077] Figure 1 is a flow chart of the method of the present invention;
[0078] Figure 2 The system block diagram of the system of the present invention. DETAILED DESCRIPTION
[0079] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.
[0080] The embodiment of the present invention provides a method for cleaning and disinfecting an endoscope, such as Figure 1 As shown, the endoscope cleaning and disinfection method comprises:
[0081] S1, the vibration controller determines in real time whether the vibration start instruction and the required disinfection vibration duration input by the user are received;
[0082] S2, when the vibration controller receives the vibration start instruction, it starts the multiple vibrators installed in the vibration tank respectively to perform vibration disinfection on the endoscope in the vibration tank; wherein the start vibration tank contains a cleaning and disinfection solution;
[0083] S3. During the vibration disinfection process of the endoscope, the vibration intensity of each vibrator is regulated by the vibration controller.
[0084] Wherein, the multiple vibrators include a first vibrator, a second vibrator and a third vibrator; wherein, the first vibrator is installed at the center position of the bottom inner surface of the vibration groove; the second vibrator and the third vibrator are respectively installed inside two opposite side walls of the vibration groove, and the installation heights of the second vibrator and the third vibrator are inconsistent.
[0085] The working principle of the above technical solution is: the vibration controller continuously monitors and determines in real time whether it has received the vibration start instruction input by the user through the operation interface and the required disinfection vibration duration. This step is a prerequisite for starting the entire disinfection process, ensuring that users can flexibly set disinfection parameters according to actual needs.
[0086] Once the vibration controller receives the vibration start command, it will immediately start the multiple vibrators installed inside the vibration tank. The vibrators include a first vibrator located at the bottom center of the vibration tank, and a second vibrator and a third vibrator installed inside two opposite side walls. The vibrators work together to generate multi-dimensional vibration waves that cover every corner of the vibration tank, ensuring that every part of the endoscope can be effectively disinfected.
[0087] At the same time, the vibration tank contains a cleaning and disinfection solution. During the vibration process, the disinfection components in the solution combine with the vibration energy to more effectively penetrate into the surface and tiny gaps of the endoscope, killing residual microorganisms and organic matter.
[0088] During the vibration disinfection process of the endoscope, the vibration controller will accurately control the vibration intensity of each vibrator according to the preset disinfection program or the real-time feedback of the disinfection effect. The above control capability makes the disinfection process more flexible and efficient, and can adjust the most appropriate vibration intensity according to the material, structure and degree of contamination of different endoscopes to achieve the best disinfection effect while avoiding unnecessary damage to the endoscope.
[0089] At the same time, the main purpose of the vibrator in the above technical solution is indeed to adjust the vibration frequency of the drug solution through vibration, but more importantly, to enhance the interaction between the cleaning and disinfection solution and the surface of the endoscope through such vibration. When the vibrator is started, it will cause the vibration tank (and the cleaning and disinfection solution therein) to vibrate. This vibration has several key functions:
[0090] First, enhanced contact: Vibration ensures that the cleaning and disinfection solution has better contact with all surfaces of the endoscope, including those hard-to-reach areas. Through vibration, the liquid can more effectively penetrate into every nook and cranny of the endoscope, thereby improving the disinfection effect.
[0091] Second, improve the activity of the drug solution: Vibration can increase the molecular activity in the cleaning and disinfection solution, making it more active, and thus more likely to react with the microorganisms attached to the surface of the endoscope, achieving more efficient disinfection.
[0092] Third, flushing effect: The flushing force generated by vibration helps to remove dirt and microorganisms attached to the surface of the endoscope. This mechanical flushing effect combined with the chemical disinfection effect of the liquid medicine can significantly improve the disinfection effect.
[0093] On the other hand, the vibrator is installed at different positions in the vibration tank, and vibrates at a specific frequency and amplitude through the precise control of the vibration controller. This vibration will cause the vibration tank and the cleaning and disinfection solution therein to produce corresponding vibrations. By adjusting the vibration frequency of the vibrator, the vibration frequency of the liquid can be affected. When the vibrator vibrates at a certain frequency, it will transmit this vibration to the vibration tank and the cleaning and disinfection solution therein, so that the solution vibrates at a similar frequency. In this way, the vibrator can effectively adjust the vibration frequency of the liquid. Among them, the vibration frequency range of the first vibrator is 70Hz-280Hz; the vibration frequency range of the second vibrator is 50Hz-150Hz; the vibration frequency range of the third vibrator is 180Hz-320Hz; wherein, the vibration frequency of the first vibrator is greater than or equal to the vibration frequency of the second vibrator; the vibration frequency of the third vibrator is greater than or equal to the first vibrator, and greater than the vibration frequency of the second vibrator.
[0094] The effect of the above technical solution is: the synergistic effect of multi-dimensional vibration waves and cleaning and disinfection solutions can more comprehensively cover all parts of the endoscope, especially those small gaps and curved parts that are difficult to clean, thereby achieving a more thorough disinfection effect. Compared with traditional chemical disinfection and manual cleaning methods, vibration disinfection technology has a faster disinfection speed, can meet the needs of high-intensity use in hospitals, and improve work efficiency. By precisely controlling the vibration intensity of the vibrator, damage to the endoscope caused by excessive vibration can be avoided, its precision components and imaging quality can be protected, and its service life can be extended. Users only need to enter the vibration start command and the required disinfection vibration time through a simple operation interface to start the entire disinfection process. There is no need for complicated operating steps and professional knowledge, which reduces the labor intensity of medical staff. The introduction of the vibration controller realizes the intelligence and automation of the disinfection process, improves the stability and reliability of the disinfection effect, and reduces the interference and errors of human factors.
[0095] At the same time, the vibration frequency of the liquid medicine acts on the endoscope to achieve more efficient vibration disinfection:
[0096] When the vibration frequency of the liquid medicine acts on the endoscope, it helps to achieve more efficient vibration disinfection. This is because:
[0097] Through vibration, the liquid medicine can hit and contact the surface of the endoscope more frequently, thereby increasing the contact area and contact time between the liquid medicine and the microorganisms. This helps to improve the disinfection effect because more microorganisms will be covered by the liquid medicine and be affected by its disinfection effect. In addition, the mechanical force generated by vibration may help to destroy the cell structure of microorganisms, making them more easily killed by the liquid medicine. This combination of mechanical and chemical disinfection can more effectively eliminate contamination on the endoscope. Vibration can also enhance the penetration ability of the liquid medicine, making it easier to penetrate the cell wall or membrane of the microorganism, thereby achieving a better disinfection effect.
[0098] In summary, the vibration of the vibrator is not only to adjust the vibration frequency of the drug solution, but more importantly to enhance the interaction between the drug solution and the surface of the endoscope through this vibration, thereby achieving more efficient vibration disinfection.
[0099] In one embodiment of the present invention, when the vibration controller receives a vibration start instruction, it starts a plurality of vibrators installed inside the vibration tank respectively to perform vibration disinfection on the endoscope in the vibration tank, including:
[0100] S201, when the vibration controller receives a vibration start instruction, controls a first vibrator installed at the center of the bottom inner surface of the vibration tank to start according to a preset first initial vibration frequency and a first initial vibration intensity;
[0101] S202, at the end of the first vibration duration after the first vibrator is started, starting the second vibrator or the third vibrator close to the bottom of the vibration groove among the second vibrator and the third vibrator according to the second initial vibration frequency and the second initial vibration intensity;
[0102] S203: At the end of the second vibration duration after the second vibrator or the third vibrator is started, the third vibrator or the second vibrator far from the bottom of the vibration groove among the second vibrator and the third vibrator is started according to a third initial vibration frequency and a third initial vibration intensity.
[0103] The working principle of the above technical solution is: when the vibration controller receives the vibration start instruction, it first controls the first vibrator installed at the center of the inner surface of the bottom of the vibration groove to start. The first vibrator starts to work according to the preset first initial vibration frequency and first initial vibration intensity, generating a preliminary vibration wave, which will first act on the bottom and surrounding areas of the endoscope.
[0104] After the first vibration duration (i.e., the time period during which the first vibrator continuously works) ends, the vibration controller will start the second vibrator or the third vibrator (depending on the specific installation positions of the two in the vibration tank) near the bottom of the vibration tank. This vibrator works at the second initial vibration frequency and the second initial vibration intensity, and the vibration wave generated by it will be superimposed on the vibration wave generated by the first vibrator, further enhancing the vibration effect on the endoscope, especially the disinfection effect on its bottom and sides.
[0105] After the second stage vibration duration ends, the vibration controller starts the third vibrator or the second vibrator (corresponding to the vibrator started in S202) away from the bottom of the vibration tank. This vibrator works according to the third initial vibration frequency and the third initial vibration intensity, and the vibration wave generated by it will further expand the propagation range of the vibration wave, covering more surfaces and gaps of the endoscope, ensuring the comprehensiveness and thoroughness of the disinfection.
[0106] The effect of the above technical solution is: by starting the vibrators at different positions in stages, the vibration waves can be distributed more evenly in the vibration tank, avoiding the vibration blind spots that may be caused by a single vibration source, and improving the uniformity of disinfection. Multiple vibrators are started in stages, and their vibration waves are superimposed on each other, which can produce a stronger vibration effect, which helps to better penetrate into the tiny gaps and hard-to-reach areas of the endoscope, thereby improving the disinfection effect. By precisely controlling the start-up time and vibration parameters (such as vibration frequency and vibration intensity) of each vibrator, damage to the endoscope caused by excessive vibration can be avoided, and its precision components and imaging quality can be protected. Starting the vibrator in stages can make the disinfection process more orderly and efficient, and the vibration of each stage can be optimized for different parts of the endoscope, thereby improving the overall disinfection efficiency. The design idea of this technical solution provides the possibility for further optimization and expansion in the future. For example, the installation position, quantity and vibration parameters of the vibrator can be adjusted according to different endoscope types and disinfection requirements.
[0107] In one embodiment of the present invention, when the vibration controller receives a vibration start instruction, it controls a first vibrator installed at the center of the bottom inner surface of the vibration tank to start according to a preset first initial vibration frequency and a first initial vibration intensity, including:
[0108] S2011. After receiving the vibration start instruction, the vibration controller retrieves the disinfection vibration required duration input by the user;
[0109] S2012, setting a first initial vibration frequency and a first initial vibration intensity according to the disinfection vibration requirement duration input by the user; wherein the first initial vibration frequency is obtained by the following formula:
[0110]
[0111] Among them, F 01 Represents the first initial vibration frequency; F x represents the average vibration frequency of the three vibrators corresponding to the last endoscope cleaning and disinfection performed by the user. When the current endoscope cleaning and disinfection is the first cleaning operation of the endoscope cleaning and disinfection device, let F x =1.5F c ; T c Indicates the preset reference duration; T x Indicates the required disinfection vibration duration input by the user; F c represents a preset reference vibration frequency, and the preset reference vibration frequency is obtained by the following formula:
[0112]
[0113] Among them, F c represents a preset reference vibration frequency; n represents the number of components included in the endoscope (the endoscope is a conventional common endoscope); E i represents the Young's modulus corresponding to the i-th component; ρ i represents the material density corresponding to the i-th component; K represents the preset safety factor, and the value range of the safety factor is 0.58-0.76; x represents the digit sign parameter, and when ε is a negative number, let x=1; when ε is a positive number, let x=-0.53; ε represents the safety factor adjustment parameter, and the safety factor adjustment parameter is obtained by the following formula:
[0114]
[0115] Wherein, ε represents the safety factor adjustment parameter; n represents the number of components included in the endoscope (the endoscope is a conventional common endoscope); E i represents the Young's modulus corresponding to the i-th component; ρ i represents the material density corresponding to the i-th component; E max and E min represents the maximum and minimum values of Young's modulus corresponding to the n components contained in the endoscope; ρ max The maximum value of the Young's modulus of the endoscope corresponds to the density of the component; ρ min The minimum value of the Young's modulus of the endoscope corresponds to the density of the component;
[0116] Furthermore, the first initial vibration intensity is obtained by the following formula:
[0117]
[0118] Among them, S 01 Represents the first initial vibration intensity; S c represents a preset reference vibration intensity, and the reference vibration intensity is the minimum vibration intensity allowed to achieve the purpose of disinfection; S xp represents the average value of the initial vibration frequencies of the three vibrators corresponding to the last endoscope cleaning and disinfection performed by the user. When the current endoscope cleaning and disinfection is the first cleaning operation of the endoscope cleaning and disinfection device, let S xp =1.2S c ; T c Indicates the preset reference duration; T x Indicates the required disinfection vibration duration input by the user;
[0119] S2013. Start the first vibrator installed at the center position of the bottom inner surface of the vibration groove according to the first initial vibration frequency and the first initial vibration intensity.
[0120] The working principle of the above technical solution is: the vibration controller first obtains the disinfection vibration requirement time (Tx) input by the user, which is an important basis for the subsequent calculation of vibration parameters.
[0121] Next, the vibration controller calculates the first initial vibration frequency (F01) based on the disinfection vibration requirement time (Tx) input by the user, the preset reference time (Tc), the average vibration frequency of the three vibrators when the user last cleaned and disinfected the endoscope (Fx, if it is the first time to use, the default is 1.5 times the preset reference vibration frequency Fc), and the physical characteristics of the endoscope (the preset reference vibration frequency Fc and the safety factor adjustment parameter ε calculated by a series of complex formulas). This calculation process fully considers the material, structure and specific needs of the endoscope to ensure the rationality of the vibration frequency.
[0122] At the same time, the vibration controller also calculates the first initial vibration intensity (S01) based on the preset reference vibration intensity (Sc), the average value of the initial vibration intensity of the three vibrators when the user last cleaned and disinfected the endoscope (Sxp, if it is the first time to use, the default is 1.2 times Sc), and the required disinfection vibration time and the preset reference time (Tc). This step also takes into account the specific needs of the user and the material characteristics of the endoscope to ensure that the vibration intensity is moderate, which can achieve the disinfection effect without causing damage to the endoscope.
[0123] Finally, the vibration controller starts the first vibrator installed at the center of the inner surface of the bottom of the vibration groove according to the calculated first initial vibration frequency (F01) and the first initial vibration intensity (S01), and starts vibration disinfection of the endoscope.
[0124] The effect of the above technical solution is: this technical solution can automatically calculate and set the vibration parameters according to the required disinfection vibration time input by the user and the physical characteristics of the endoscope, realizing the intelligence and adaptability of the disinfection process. This helps to improve the stability and reliability of the disinfection effect, while reducing interference and errors caused by human factors. By accurately calculating the vibration frequency and vibration intensity, the technical solution can ensure that the vibration waves are evenly distributed in the vibration trough and effectively penetrate into every corner and crevice of the endoscope, thereby achieving a more comprehensive and thorough disinfection effect. When calculating the vibration parameters, the material and structural characteristics of the endoscope are fully considered to avoid damage to the endoscope due to excessive vibration, and protect its precision components and imaging quality. Users can flexibly set the required disinfection vibration time according to actual needs, and obtain the corresponding vibration disinfection effect, which improves the convenience and satisfaction of use.
[0125] In addition, by considering the physical properties of each component of the endoscope (such as Young's modulus, material density), as well as the preset safety factor and safety factor adjustment parameters, the technical solution can calculate a relatively reasonable reference vibration frequency, which will neither damage the endoscope components due to being too high nor reduce the disinfection effect due to being too low. The average vibration frequency of the user's last cleaning and disinfection is introduced as a reference to further refine the setting of the vibration frequency, so that the current vibration frequency setting is closer to the actual usage, which helps to reduce unnecessary vibration losses. The reference vibration intensity is set to the minimum vibration intensity allowed to achieve the purpose of disinfection, ensuring the basic strength requirements of the disinfection process. By taking into account the average initial vibration intensity of the user's last cleaning and disinfection, and combining the disinfection vibration requirement duration currently input by the user, the technical solution can dynamically adjust the first initial vibration intensity to adapt to different disinfection requirements, thereby maximizing the disinfection effect while ensuring the safety of the endoscope. At the same time, the technical solution can automatically calculate and adjust the vibration frequency and vibration intensity according to the user's actual usage and disinfection needs, realizing the intelligence and personalization of the disinfection process. Furthermore, by taking into account the physical properties of each component of the endoscope, the technical solution controls the vibration process more accurately and reduces the risk of endoscope damage caused by improper vibration.
[0126] On the other hand, the two parameters of Young's modulus and material density reflect the physical properties of the various components of the endoscope and are important bases for calculating the reference vibration frequency. By considering the above parameters, the technical solution can more accurately evaluate the stress of the endoscope during the vibration process, thereby avoiding damage caused by excessive vibration. At the same time, the two parameters of safety factor and safety factor adjustment parameter are used to adjust the calculation results of the reference vibration frequency to ensure the safety of the vibration process. By reasonably setting the above parameters, the technical solution can reduce the vibration loss of the endoscope while ensuring the disinfection effect. At the same time, the disinfection vibration requirement duration input by the user directly reflects the user's disinfection needs. By incorporating it into the calculation process of vibration frequency and vibration intensity, the above technical solution of this embodiment can adjust the vibration parameters according to different disinfection needs to achieve a more personalized disinfection process.
[0127] In summary, this technical solution successfully achieved the goal of reducing the vibration loss of the endoscope while ensuring sufficient disinfection strength through complex calculation processes and precise parameter settings.
[0128] In one embodiment of the present invention, at the end of the first vibration duration after the first vibrator is started, the second vibrator or the third vibrator close to the bottom of the vibration groove among the second vibrator and the third vibrator is started according to the second initial vibration frequency and the second initial vibration intensity, comprising:
[0129] S2021. After the first vibrator is started, the vibration controller retrieves the required disinfection vibration duration input by the user;
[0130] S2022. According to the disinfection vibration requirement duration input by the user, a second initial vibration frequency and a second initial vibration intensity are set in combination with the first initial vibration frequency and the first initial vibration intensity, wherein the second initial vibration frequency is obtained by the following formula:
[0131]
[0132] Among them, F 02 Represents the second initial vibration frequency; F 01 Represents the first initial vibration frequency; F c Indicates the preset reference vibration frequency; T c Indicates the preset reference duration; T x represents the required disinfection vibration duration input by the user; w represents the first symbol adjustment parameter, and the first symbol adjustment parameter is as follows:
[0133] When F 01 -F c With T c -T x If the positive and negative signs are the same, let w = -1;
[0134] When F 01 -F c With T c -T x When the positive and negative signs of are different, let w=1;
[0135] Furthermore, the second initial vibration intensity is obtained by the following formula:
[0136]
[0137] Among them, S 02 Represents the second initial vibration intensity; S 01 Represents the first initial vibration intensity; S c represents a preset reference vibration intensity, and the reference vibration intensity is the minimum vibration intensity allowed to achieve the purpose of disinfection; T c Indicates the preset reference duration; T x represents the required disinfection vibration duration input by the user; w represents the first symbol adjustment parameter,
[0138] S2023. At the end of the preset first vibration duration, the vibration controller starts the second vibrator or the third vibrator near the bottom of the vibration groove according to the second initial vibration frequency and the second initial vibration intensity; wherein the value range of the first vibration duration is 2.5-5s.
[0139] The working principle of the above technical solution is: after the first vibrator is started, the vibration controller re-acquires the disinfection vibration requirement time (Tx) input by the user, in order to consider the user's actual needs when calculating the vibration parameters of the second vibrator.
[0140] According to the disinfection vibration requirement time (Tx) input by the user, the vibration parameters (F01, S01) of the first vibrator, the preset reference vibration parameters (Fc, Sc), the reference time (Tc) and the calculation rule of the first sign adjustment parameter (w), the vibration controller calculates the second initial vibration frequency F02 and the second initial vibration intensity S02 of the second vibrator respectively. Here, the introduction of the first sign adjustment parameter w is to adjust the vibration parameters of the second vibrator according to the relative relationship between the vibration frequency of the first vibrator and the reference frequency and time parameters, so as to achieve more precise vibration control.
[0141] After the preset first vibration duration (its value range is 2.5-5s) ends, the vibration controller starts the second vibrator (or a corresponding one of the third vibrators) near the bottom of the vibration tank according to the calculated second initial vibration frequency F02 and the second initial vibration intensity S02. This step ensures that after the first vibrator initially acts on the endoscope, the second vibrator can continue to further vibrate and disinfect the endoscope with appropriate vibration parameters.
[0142] The effect of the above technical solution is: by introducing the first symbol adjustment parameter w, the technical solution can dynamically adjust the vibration parameters of the second vibrator according to the vibration state of the first vibrator and the required disinfection vibration duration input by the user, thereby realizing more refined vibration control. Starting different vibrators in stages and dynamically adjusting the vibration parameters of subsequent vibrators according to the vibration effect of the previous stage can help to more comprehensively cover various parts of the endoscope and improve the disinfection effect. By accurately calculating the vibration parameters, damage to the endoscope caused by excessive vibration is avoided, and its precision components and imaging quality are protected. Users can flexibly set the vibration requirement duration according to actual needs and obtain the corresponding vibration disinfection effect, which improves the convenience and satisfaction of use. The entire disinfection process is intelligent and adaptive, and can automatically adjust the vibration parameters according to user input and actual conditions, thereby improving the stability and reliability of the disinfection process.
[0143] On the other hand, by considering the relationship between the initial vibration frequency (F02) of the first vibrator and the preset reference vibration frequency (Fc), as well as the difference between the above relationship and the disinfection vibration requirement time (Tx) input by the user and the preset reference time (Tc) (i.e., the positive and negative signs of F01-Fc and Tc-Tx), the technical solution can dynamically adjust the initial vibration frequency (F02) of the second vibrator. The above adjustment helps to avoid sudden changes in the vibration frequency, thereby reducing the impact and vibration loss on the endoscope. At the same time, by introducing the first sign adjustment parameter (w), the technical solution can transition in a smoother manner when the vibration frequency needs to be adjusted, further reducing the risk of vibration loss.
[0144] The setting of the initial vibration intensity (S02) of the second vibrator also takes into account the initial vibration intensity (S01) of the first vibrator, the required disinfection vibration duration (Tx) input by the user, the preset reference vibration intensity (Sc) and reference duration (Tc), and the first sign adjustment parameter (w). The above setting method ensures that the second vibrator can continue to maintain sufficient vibration intensity when it is started to ensure the strength requirements of the disinfection process. Combined with the adjustment of the vibration frequency mentioned above, the technical solution can maximize the disinfection effect while ensuring the safety of the endoscope. The above technical solution stipulates that after the first vibrator is started, the second vibrator or the third vibrator near the bottom of the vibration groove is started. The above sequential start-up method helps to avoid the superposition effect caused by multiple vibrators working at the same time, thereby reducing the vibration loss of the endoscope. At the same time, through the preset first vibration duration (2.5-5s), the technical solution provides sufficient working time for the first vibrator to ensure that it can fully act on a specific area of the endoscope, and then the second vibrator relays to disinfect the subsequent areas.
[0145] In summary, this technical solution successfully achieved the goal of further reducing the vibration loss of the endoscope while ensuring sufficient disinfection strength through fine vibration frequency and vibration intensity settings, as well as a sequential start-up strategy. The above technical solution not only improves the efficiency and effect of the disinfection process, but also extends the service life of the endoscope.
[0146] In one embodiment of the present invention, at the end of the second vibration duration after the second vibrator or the third vibrator is started, the third vibrator or the second vibrator far from the bottom of the vibration groove among the second vibrator and the third vibrator is started according to the third initial vibration frequency and the third initial vibration intensity, comprising:
[0147] S2031, after the second vibrator or the third vibrator near the bottom of the vibration groove is started, the vibration controller retrieves the required disinfection vibration duration input by the user;
[0148] S2032, setting a third initial vibration frequency and a third initial vibration intensity according to the disinfection vibration requirement duration input by the user in combination with the second initial vibration frequency and the second initial vibration intensity, wherein the third initial vibration frequency is obtained by the following formula:
[0149]
[0150] Among them, F 03 Indicates the third initial vibration frequency; F 02 Represents the second initial vibration frequency; F 01 Represents the first initial vibration frequency; F cIndicates the preset reference vibration frequency; T c Indicates the preset reference duration; T x represents the required disinfection vibration duration input by the user; k represents the second symbol adjustment parameter, and the second symbol adjustment parameter is as follows:
[0151] When F 01 -F 02 With T c -T x If the positive and negative signs are the same, let k = -1;
[0152] When F 01 -F 02 With T c -T x If the positive and negative signs of are different, let k = 1;
[0153] Furthermore, the third initial vibration intensity is obtained by the following formula:
[0154]
[0155] Among them, S 03 Indicates the third initial vibration intensity; S 02 Represents the second initial vibration intensity; S 01 represents the first initial vibration intensity; T c Indicates the preset reference duration; T x represents the required duration of disinfection vibration input by the user; k represents the second symbol adjustment parameter;
[0156] S2033. At the end of the preset second vibration duration, the vibration controller starts the third vibrator or the second vibrator away from the bottom of the vibration groove according to the third initial vibration frequency and the third initial vibration intensity; wherein the value range of the second vibration duration is 2-3s.
[0157] The working principle of the above technical solution is: after the second vibrator or the third vibrator near the bottom of the vibration groove is started, the vibration controller again obtains the disinfection vibration requirement time (Tx) input by the user. This is to consider the user's actual needs when calculating the vibration parameters of the third vibrator.
[0158] According to the disinfection vibration requirement time (Tx) input by the user, the vibration parameters of the first two stages (F01, S01, F02, S02), the preset reference vibration parameter (Fc), the reference time (Tc) and the calculation rule of the second sign adjustment parameter (k), the vibration controller calculates the third initial vibration frequency F03 and the third initial vibration intensity S03 of the third vibrator respectively. Here, the introduction of the second sign adjustment parameter k is to dynamically adjust the vibration parameters of the third vibrator according to the changing trend of the vibration frequency in the first two stages and the disinfection vibration requirement time input by the user, so as to achieve more precise vibration control.
[0159] After the preset second vibration duration (its value range is 2-3s) ends, the vibration controller starts the third vibrator (or the corresponding one of the second vibrators) away from the bottom of the vibration tank according to the calculated third initial vibration frequency F03 and the third initial vibration intensity S03. This step ensures that after the first two vibrators act on the endoscope in sequence, the third vibrator can continue to further vibrate and disinfect the endoscope with appropriate vibration parameters.
[0160] The effect of the above technical solution is: by starting the vibrators at different positions in stages and dynamically adjusting the vibration parameters of the subsequent vibrators according to the vibration effect of the previous stage, a more refined and comprehensive vibration control is achieved, which helps to improve the disinfection effect. The entire disinfection process is intelligent and adaptive, and can automatically adjust the vibration parameters according to user input and actual conditions, thereby improving the stability and reliability of the disinfection process. By gradually increasing the vibration frequency and vibration intensity, and considering the position factors of the vibrator, the technical solution can more effectively cover various parts of the endoscope, especially the hard-to-reach corners and gaps, thereby improving the disinfection effect. By accurately calculating the vibration parameters and gradually increasing the vibration intensity in stages, damage to the endoscope caused by excessive vibration is avoided, and its precision components and imaging quality are protected. Users can flexibly set the vibration requirement duration according to actual needs and obtain the corresponding vibration disinfection effect, which improves the convenience and satisfaction of use. At the same time, multi-stage vibration control also increases the visualization and controllability of the disinfection process and improves the user experience.
[0161] On the other hand, the above technical solution dynamically adjusts the initial vibration frequency (F03) of the third vibrator according to the difference between the first two vibration frequency changes (F01-F02) and the disinfection vibration requirement time (Tx) input by the user and the preset reference time (Tc) (i.e., whether the positive and negative signs are the same). The above adjustment method makes the change of vibration frequency smoother, which helps to reduce the impact and vibration loss during the vibration process. At the same time, through the preset second vibration duration (2-3s), sufficient working time is provided for the vibrator near the bottom of the vibration groove to ensure that it can fully act on the specific area of the endoscope, reducing the additional vibration loss caused by frequent replacement of the vibrator.
[0162] The setting of the initial vibration intensity (S03) of the third vibrator also takes into account factors such as the vibration intensity of the previous vibrators (S01, S02) and the required disinfection vibration duration (Tx) input by the user. The above setting method ensures that the vibration intensity can be continuously maintained at a sufficient level throughout the disinfection process to ensure the disinfection effect. Combined with the adjustment of the aforementioned vibration frequency, the technical solution can maximize the disinfection intensity and ensure the thorough cleaning and disinfection of the endoscope while ensuring the safety of the endoscope. The technical solution adopts a sequential start-up strategy, that is, first start the vibrator close to the bottom of the vibration groove, and then start the vibrator away from the bottom of the vibration groove. The above-mentioned sequential start-up method helps to form a synergistic effect, so that the vibration energy can be more evenly transmitted to various parts of the endoscope, thereby improving the disinfection efficiency. At the same time, by reasonably setting the initial vibration parameters and working time of each vibrator, the technical solution avoids the waste of vibration energy and the superposition effect, and reduces unnecessary vibration losses.
[0163] In summary, this technical solution successfully achieved the goal of further reducing the vibration loss of the endoscope while ensuring sufficient disinfection strength through fine vibration frequency and vibration intensity settings, as well as a sequential start-up strategy. The above technical solution not only improves the efficiency and effect of the disinfection process, but also extends the service life of the endoscope, providing new ideas and methods for the maintenance and care of medical equipment.
[0164] In one embodiment of the present invention, during the vibration disinfection process of an endoscope, the vibration intensity of each vibrator is regulated by the vibration controller, including:
[0165] S301, extracting the disinfection vibration requirement duration input by the user;
[0166] S302, obtaining a first target vibration intensity corresponding to the first vibrator according to the required disinfection vibration duration input by the user;
[0167] S303, adjusting the vibration intensity corresponding to the first vibrator according to the first initial vibration frequency corresponding to the first vibrator, and adjusting it back and forth between the first initial vibration intensity and the first target vibration intensity until the disinfection vibration requirement input by the user is reached; wherein the single adjustment continuous vibration duration corresponding to the first initial vibration intensity and the first target vibration intensity is 3s-5s;
[0168] S304, obtaining a second target vibration intensity corresponding to the second vibrator or the third vibrator near the bottom of the vibration groove according to the required disinfection vibration duration input by the user;
[0169] S305, according to the second initial vibration frequency corresponding to the second vibrator or the third vibrator near the bottom of the vibration groove, the vibration intensity corresponding to the second vibrator or the third vibrator near the bottom of the vibration groove is adjusted between the second initial vibration intensity and the second target vibration intensity, and the disinfection vibration requirement input by the user is reached; wherein the single adjustment continuous vibration duration corresponding to the second initial vibration intensity and the second target vibration intensity is 3s-5s;
[0170] S306, acquiring a third target vibration intensity corresponding to the third vibrator or the second vibrator away from the bottom of the vibration groove according to the required disinfection vibration duration input by the user;
[0171] S307. According to the third initial vibration frequency corresponding to the third vibrator or the second vibrator away from the bottom of the vibration groove, adjust the vibration intensity corresponding to the third vibrator or the second vibrator away from the bottom of the vibration groove, and perform reciprocating and staggered adjustment between the third initial vibration intensity and the third target vibration intensity until the required disinfection vibration duration input by the user is reached, wherein the single adjustment continuous vibration duration corresponding to the third initial vibration intensity and the third target vibration intensity is 3s-5s.
[0172] Wherein, the first target vibration intensity is obtained by the following formula:
[0173]
[0174] Among them, S 01m Indicates the first target vibration intensity; S 03 Indicates the third initial vibration intensity; S 02 Represents the second initial vibration intensity; S 01 represents the first initial vibration intensity; T c Indicates the preset reference duration; T x represents the required disinfection vibration duration input by the user; s represents the first intensity regulation coefficient, and the first intensity regulation coefficient is obtained by the following formula:
[0175]
[0176] Where s represents the first intensity control coefficient; S 03 Indicates the third initial vibration intensity; S 02 Represents the second initial vibration intensity; S 01 Represents the first initial vibration intensity; S c Indicates a preset reference vibration intensity, and the reference vibration intensity is the minimum vibration intensity allowed to achieve the purpose of disinfection;
[0177] At the same time, the second target vibration intensity is obtained by the following formula:
[0178]
[0179] Among them, S 02m Indicates the second target vibration intensity; S 01m Indicates the first target vibration intensity; S 02 Represents the second initial vibration intensity; S 01 represents the first initial vibration intensity; T c Indicates the preset reference duration; T x represents the required duration of disinfection vibration input by the user; s represents the first intensity control coefficient;
[0180] Furthermore, the third target vibration intensity is obtained by the following formula:
[0181]
[0182] Among them, S 03m Indicates the third target vibration intensity; S 02m Indicates the second target vibration intensity; S 01m Indicates the first target vibration intensity; S 03 Indicates the third initial vibration intensity; S 02 Represents the second initial vibration intensity; S 01 represents the first initial vibration intensity; T c Indicates the preset reference duration; T x represents the required disinfection vibration duration input by the user; s represents the first intensity control coefficient; h represents the second intensity control coefficient, and the second intensity control coefficient is obtained by the following formula:
[0183]
[0184] Wherein, h represents the second intensity control coefficient; S 02m Indicates the second target vibration intensity; S 01m Indicates the first target vibration intensity; S 02 Represents the second initial vibration intensity; S01 Indicates the first initial vibration intensity.
[0185] The working principle of the above technical solution is: the vibration controller first extracts the disinfection vibration requirement duration (Tx) input by the user, which is the basis for all subsequent vibration intensity controls.
[0186] According to the required duration of disinfection vibration (Tx) input by the user, the first target vibration intensity (S01m) of the first vibrator is calculated by a preset formula. During the operation of the first vibrator, the vibration controller adjusts the vibration intensity of the first vibrator between the first initial vibration intensity (S01) and the first target vibration intensity (S01m) according to the first initial vibration frequency (F01). The above adjustment method can make the vibration intensity change continuously within the preset single adjustment continuous vibration duration (3s-5s), thereby enhancing the disinfection effect.
[0187] When the first vibrator completes its working stage, the vibration controller calculates the second target vibration intensity (S02m) of the second vibrator or the third vibrator near the bottom of the vibration tank according to the disinfection vibration requirement time (Tx) input by the user and the previous calculation result. Similarly, according to the second initial vibration frequency (F02), the vibration controller reciprocates and interleaves the vibration intensity of the second vibrator or the third vibrator between the second initial vibration intensity (S02) and the second target vibration intensity (S02m) to achieve a better disinfection effect.
[0188] After the first two vibrators have completed their work, the vibration controller continues to calculate the third target vibration intensity (S03m) of the third vibrator or the second vibrator away from the vibration slot according to the required disinfection vibration duration (Tx) input by the user and the previous calculation results. Finally, according to the third initial vibration frequency (F03), the vibration controller reciprocates and interleaves the vibration intensity of the vibrator away from the vibration slot between the third initial vibration intensity (S03) and the third target vibration intensity (S03m) until the required disinfection vibration duration input by the user is reached.
[0189] The effect of the above technical solution is: through the reciprocating and staggered adjustment of the vibration intensity, different intensities of vibration can be applied to the endoscope in different time periods, so as to more effectively remove stains and microorganisms and improve the disinfection effect. Although the vibration intensity is constantly changing, it is always kept within a safe range, avoiding damage to the endoscope due to excessive vibration. Users can set the required vibration duration according to actual needs and obtain the corresponding disinfection effect. At the same time, the reciprocating and staggered adjustment of the vibration intensity also increases the visualization and controllability of the disinfection process and improves the user experience. The entire disinfection process is intelligent and adaptive, and can automatically adjust the vibration intensity according to user input and actual conditions, which improves the stability and reliability of the disinfection process. By finely controlling the vibration intensity, it is possible to reduce unnecessary energy waste and optimize resource utilization while ensuring the disinfection effect.
[0190] On the other hand, by reciprocating and staggered adjustment of the vibration intensity of each vibrator, the technical solution avoids the vibration intensity from being kept at the same level for a long time, thereby reducing the loss of the endoscope caused by continuous high-intensity vibration. The above adjustment method allows the vibration energy to be more evenly distributed throughout the disinfection process, which helps to extend the service life of the endoscope. The setting of the continuous vibration duration for a single adjustment (3s-5s) ensures the rationality and stability of the vibration intensity change, and avoids the adverse effects of too frequent or drastic adjustments on the vibrator itself and the endoscope. The technical solution sets the first, second and third target vibration intensities and dynamically adjusts them according to the disinfection vibration requirement duration input by the user, ensuring that the vibration intensity can be maintained at a sufficient level throughout the disinfection process to ensure the disinfection effect. The above-mentioned setting method of the target vibration intensity fully considers the synergy between different vibrators and the changes in disinfection requirements. By introducing the first and second intensity control coefficients (s and h), the technical solution can more accurately control the range and speed of vibration intensity changes to adapt to different disinfection scenarios and requirements. The calculation method of the above control coefficient is based on parameters such as the initial vibration intensity, the disinfection vibration requirement time input by the user, and the preset baseline vibration intensity, ensuring the accuracy and reliability of the control. The synergistic effect of vibration frequency and vibration intensity helps to achieve a more efficient disinfection effect. Through a reasonable combination of frequency and intensity, the vibration energy can be more concentrated on the surface of the endoscope, thereby speeding up the disinfection speed and improving the disinfection quality.
[0191] In summary, this technical solution successfully achieves a balance between reducing vibration loss and ensuring disinfection strength by finely regulating the vibration intensity of each vibrator during the vibration disinfection process of the endoscope. The above technical solution not only improves the efficiency and effect of the disinfection process, but also extends the service life of the endoscope, providing new ideas and methods for the maintenance and care of medical equipment.
[0192] The embodiment of the present invention provides an endoscope cleaning and disinfection system, such as Figure 2 As shown, the endoscope cleaning and disinfection system comprises:
[0193] The command information monitoring module is used to control the vibration controller to determine in real time whether the vibration start command input by the user and the required duration of disinfection vibration are received;
[0194] An initial vibration control module is used to respectively start a plurality of vibrators installed inside the vibration tank after the vibration controller receives a vibration start instruction, so as to perform vibration disinfection on the endoscope in the vibration tank; wherein the start vibration tank contains a cleaning and disinfection solution;
[0195] The vibration control module is used to control the vibration intensity of each vibrator through the vibration controller during the vibration disinfection process of the endoscope.
[0196] The working principle of the above technical solution is: the vibration controller continuously monitors and determines in real time whether it has received the vibration start instruction input by the user through the operation interface and the required disinfection vibration duration. This step is a prerequisite for starting the entire disinfection process, ensuring that users can flexibly set disinfection parameters according to actual needs.
[0197] Once the vibration controller receives the vibration start command, it will immediately start the multiple vibrators installed inside the vibration tank. The vibrators include a first vibrator located at the bottom center of the vibration tank, and a second vibrator and a third vibrator installed inside two opposite side walls. The vibrators work together to generate multi-dimensional vibration waves that cover every corner of the vibration tank, ensuring that every part of the endoscope can be effectively disinfected.
[0198] At the same time, the vibration tank contains a cleaning and disinfection solution. During the vibration process, the disinfection components in the solution combine with the vibration energy to more effectively penetrate into the surface and tiny gaps of the endoscope, killing residual microorganisms and organic matter.
[0199] During the vibration disinfection process of the endoscope, the vibration controller will accurately control the vibration intensity of each vibrator according to the preset disinfection program or the real-time feedback of the disinfection effect. The above control capability makes the disinfection process more flexible and efficient, and can adjust the most appropriate vibration intensity according to the material, structure and degree of contamination of different endoscopes to achieve the best disinfection effect while avoiding unnecessary damage to the endoscope.
[0200] The effect of the above technical solution is: the synergistic effect of multi-dimensional vibration waves and cleaning and disinfection solutions can more comprehensively cover all parts of the endoscope, especially those small gaps and curved parts that are difficult to clean, thereby achieving a more thorough disinfection effect. Compared with traditional chemical disinfection and manual cleaning methods, vibration disinfection technology has a faster disinfection speed, can meet the needs of high-intensity use in hospitals, and improve work efficiency. By precisely controlling the vibration intensity of the vibrator, damage to the endoscope caused by excessive vibration can be avoided, its precision components and imaging quality can be protected, and its service life can be extended. Users only need to enter the vibration start command and the required disinfection vibration time through a simple operation interface to start the entire disinfection process. There is no need for complicated operating steps and professional knowledge, which reduces the labor intensity of medical staff. The introduction of the vibration controller realizes the intelligence and automation of the disinfection process, improves the stability and reliability of the disinfection effect, and reduces the interference and errors of human factors.
[0201] An embodiment of the present invention proposes an endoscope cleaning and disinfecting device, which includes a vibration trough, a first vibrator, a second vibrator, a third vibrator and a vibration controller; wherein the first vibrator is installed at the center position of the bottom inner surface of the vibration trough; the second vibrator and the third vibrator are respectively installed inside two opposite side walls of the vibration trough; the vibration control signal output end of the vibration controller is connected to the control signal input ends of the first vibrator, the second vibrator and the third vibrator; the parameter signal output end of the touch display screen is connected to the parameter signal input end of the vibration controller; at the same time, the two vibrators installed inside the two opposite side walls of the vibration trough are installed at different heights.
[0202] The working principle of the above technical solution is: the vibration controller continuously monitors and determines in real time whether it has received the vibration start instruction input by the user through the operation interface and the required disinfection vibration duration. This step is a prerequisite for starting the entire disinfection process, ensuring that users can flexibly set disinfection parameters according to actual needs.
[0203] Once the vibration controller receives the vibration start command, it will immediately start the multiple vibrators installed inside the vibration tank. The vibrators include a first vibrator located at the bottom center of the vibration tank, and a second vibrator and a third vibrator installed inside two opposite side walls. The vibrators work together to generate multi-dimensional vibration waves that cover every corner of the vibration tank, ensuring that every part of the endoscope can be effectively disinfected.
[0204] At the same time, the vibration tank contains a cleaning and disinfection solution. During the vibration process, the disinfection components in the solution combine with the vibration energy to more effectively penetrate into the surface and tiny gaps of the endoscope, killing residual microorganisms and organic matter.
[0205] During the vibration disinfection process of the endoscope, the vibration controller will accurately control the vibration intensity of each vibrator according to the preset disinfection program or the real-time feedback of the disinfection effect. The above control capability makes the disinfection process more flexible and efficient, and can adjust the most appropriate vibration intensity according to the material, structure and degree of contamination of different endoscopes to achieve the best disinfection effect while avoiding unnecessary damage to the endoscope.
[0206] The effect of the above technical solution is: the synergistic effect of multi-dimensional vibration waves and cleaning and disinfection solutions can more comprehensively cover all parts of the endoscope, especially those small gaps and curved parts that are difficult to clean, thereby achieving a more thorough disinfection effect. Compared with traditional chemical disinfection and manual cleaning methods, vibration disinfection technology has a faster disinfection speed, can meet the needs of high-intensity use in hospitals, and improve work efficiency. By precisely controlling the vibration intensity of the vibrator, damage to the endoscope caused by excessive vibration can be avoided, its precision components and imaging quality can be protected, and its service life can be extended. Users only need to enter the vibration start command and the required disinfection vibration time through a simple operation interface to start the entire disinfection process. There is no need for complicated operating steps and professional knowledge, which reduces the labor intensity of medical staff. The introduction of the vibration controller realizes the intelligence and automation of the disinfection process, improves the stability and reliability of the disinfection effect, and reduces the interference and errors of human factors.
[0207] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if the above-mentioned modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include the above-mentioned modifications and variations.
Claims
1. A method for cleaning and disinfecting an endoscope, characterized in that: The endoscope cleaning and disinfection method comprises: The vibration controller determines in real time whether the vibration start instruction and the required duration of disinfection vibration input by the user are received; When the vibration controller receives the vibration start instruction, it starts the multiple vibrators installed in the vibration tank respectively to perform vibration disinfection on the endoscope in the vibration tank; wherein the start vibration tank contains a cleaning and disinfection solution; During the vibration disinfection process of the endoscope, the vibration intensity of each vibrator is regulated by the vibration controller.
2. The endoscope cleaning and disinfection method according to claim 1, characterized in that: The multiple vibrators include a first vibrator, a second vibrator and a third vibrator; wherein the first vibrator is installed at the center position of the bottom inner surface of the vibration groove; the second vibrator and the third vibrator are respectively installed inside two opposite side walls of the vibration groove, and the installation heights of the second vibrator and the third vibrator are inconsistent.
3. The endoscope cleaning and disinfection method according to claim 1, characterized in that: When the vibration controller receives the vibration start instruction, it starts the multiple vibrators installed in the vibration tank respectively to perform vibration disinfection on the endoscope in the vibration tank, including: When the vibration controller receives the vibration start instruction, it controls the first vibrator installed at the center position of the bottom inner surface of the vibration tank to start according to the preset first initial vibration frequency and first initial vibration intensity; At the end of the first vibration duration after the first vibrator is started, starting the second vibrator or the third vibrator near the bottom of the vibration groove among the second vibrator and the third vibrator according to the second initial vibration frequency and the second initial vibration intensity; At the end of the second vibration duration after the second vibrator or the third vibrator is started, the third vibrator or the second vibrator far from the bottom of the vibration groove among the second vibrator and the third vibrator is started at a third initial vibration frequency and a third initial vibration intensity.
4. The endoscope cleaning and disinfection method according to claim 3, characterized in that: When the vibration controller receives the vibration start instruction, it controls the first vibrator installed at the center of the bottom inner surface of the vibration tank to start according to the preset first initial vibration frequency and first initial vibration intensity, including: When the vibration controller receives the vibration start instruction, it retrieves the disinfection vibration requirement duration input by the user; The first initial vibration frequency and the first initial vibration intensity are set according to the disinfection vibration requirement duration input by the user; wherein the first initial vibration frequency is obtained by the following formula: Among them, F 01 Represents the first initial vibration frequency; F x represents the average vibration frequency of the three vibrators corresponding to the last endoscope cleaning and disinfection performed by the user. When the current endoscope cleaning and disinfection is the first cleaning operation of the endoscope cleaning and disinfection device, let F x =1.5F c ; T c Indicates the preset reference duration; T x Indicates the required disinfection vibration duration input by the user; F c represents a preset reference vibration frequency, and the preset reference vibration frequency is obtained by the following formula: Among them, F c represents the preset reference vibration frequency; n represents the number of components contained in the endoscope; E i represents the Young's modulus corresponding to the i-th component; ρ i represents the material density corresponding to the i-th component; K represents the preset safety factor, and the value range of the safety factor is 0.58-0.76; x represents the digit sign parameter, and when ε is a negative number, let x=1; when ε is a positive number, let x=-0.53; ε represents the safety factor adjustment parameter, and the safety factor adjustment parameter is obtained by the following formula: Among them, ε represents the safety factor adjustment parameter; n represents the number of components contained in the endoscope; E i represents the Young's modulus corresponding to the i-th component; ρ i represents the material density corresponding to the i-th component; E max and E min represents the maximum and minimum values of Young's modulus corresponding to the n components contained in the endoscope; ρ max The maximum value of the Young's modulus of the endoscope corresponds to the density of the component; ρ min The minimum value of the Young's modulus of the endoscope corresponds to the density of the component; Furthermore, the first initial vibration intensity is obtained by the following formula: Among them, S 01 Represents the first initial vibration intensity; S c represents a preset reference vibration intensity, and the reference vibration intensity is the minimum vibration intensity allowed to achieve the purpose of disinfection; S xp represents the average value of the initial vibration frequencies of the three vibrators corresponding to the last endoscope cleaning and disinfection performed by the user. When the current endoscope cleaning and disinfection is the first cleaning operation of the endoscope cleaning and disinfection device, let S xp =1.2S c ; T c Indicates the preset reference duration; T x Indicates the required disinfection vibration duration input by the user; A first vibrator installed at a central position of the bottom inner surface of the vibration groove is started according to the first initial vibration frequency and the first initial vibration intensity.
5. The endoscope cleaning and disinfection method according to claim 3, characterized in that: At the end of the first vibration duration after the first vibrator is started, starting the second vibrator or the third vibrator near the bottom of the vibration groove among the second vibrator and the third vibrator according to the second initial vibration frequency and the second initial vibration intensity, including: After the first vibrator is started, the vibration controller retrieves the required disinfection vibration duration input by the user; The second initial vibration frequency and the second initial vibration intensity are set according to the disinfection vibration requirement duration input by the user in combination with the first initial vibration frequency and the first initial vibration intensity, wherein the second initial vibration frequency is obtained by the following formula: Among them, F 02 Represents the second initial vibration frequency; F 01 Represents the first initial vibration frequency; F c Indicates the preset reference vibration frequency; T c Indicates the preset reference duration; T x represents the required disinfection vibration duration input by the user; w represents the first symbol adjustment parameter, and the first symbol adjustment parameter is as follows: When F 01 -F c With T c -T x If the positive and negative signs are the same, let w = -1; When F 01 -F c With T c -T x When the positive and negative signs of are different, let w=1; Furthermore, the second initial vibration intensity is obtained by the following formula: Among them, S 02 Represents the second initial vibration intensity; S 01 Represents the first initial vibration intensity; S c represents a preset reference vibration intensity, and the reference vibration intensity is the minimum vibration intensity allowed to achieve the purpose of disinfection; T c Indicates the preset reference duration; T x represents the required disinfection vibration duration input by the user; w represents the first symbol adjustment parameter, At the end of the preset first vibration duration, the vibration controller starts the second vibrator or the third vibrator near the bottom of the vibration groove according to the second initial vibration frequency and the second initial vibration intensity; wherein the value range of the first vibration duration is 2.5-5s.
6. The endoscope cleaning and disinfection method according to claim 1, characterized in that: At the end time of the second vibration duration after the second vibrator or the third vibrator is started, the third vibrator or the second vibrator far from the bottom of the vibration groove among the second vibrator and the third vibrator is started according to the third initial vibration frequency and the third initial vibration intensity, including: After the second vibrator or the third vibrator near the bottom of the vibration tank is started, the vibration controller retrieves the required disinfection vibration duration input by the user; The third initial vibration frequency and the third initial vibration intensity are set according to the disinfection vibration requirement duration input by the user in combination with the second initial vibration frequency and the second initial vibration intensity, wherein the third initial vibration frequency is obtained by the following formula: Among them, F 03 Indicates the third initial vibration frequency; F 02 Represents the second initial vibration frequency; F 01 Represents the first initial vibration frequency; F c Indicates the preset reference vibration frequency; T c Indicates the preset reference duration; T x represents the required disinfection vibration duration input by the user; k represents the second symbol adjustment parameter, and the second symbol adjustment parameter is as follows: When F 01 -F 02 With T c -T x If the positive and negative signs are the same, let k = -1; When F 01 -F 02 With T c -T x If the positive and negative signs of are different, let k = 1; Furthermore, the third initial vibration intensity is obtained by the following formula: Among them, S 03 Indicates the third initial vibration intensity; S 02 Represents the second initial vibration intensity; S 01 represents the first initial vibration intensity; T c Indicates the preset reference duration; T x represents the required duration of disinfection vibration input by the user; k represents the second symbol adjustment parameter; At the end of the preset second vibration duration, the vibration controller starts the third vibrator or the second vibrator away from the bottom of the vibration groove according to the third initial vibration frequency and the third initial vibration intensity; wherein the value range of the second vibration duration is 2-3s.
7. The endoscope cleaning and disinfection method according to claim 1, characterized in that: During the vibration disinfection process of the endoscope, the vibration intensity of each vibrator is regulated by the vibration controller, including: Extract the disinfection vibration requirement duration input by the user; Obtaining a first target vibration intensity corresponding to the first vibrator according to the required disinfection vibration duration input by the user; According to the first initial vibration frequency corresponding to the first vibrator, the vibration intensity corresponding to the first vibrator is adjusted back and forth between the first initial vibration intensity and the first target vibration intensity until the disinfection vibration requirement input by the user is reached; wherein the single adjustment continuous vibration duration corresponding to the first initial vibration intensity and the first target vibration intensity is 3s-5s; Obtaining a second target vibration intensity corresponding to the second vibrator or the third vibrator near the bottom of the vibration groove according to the required disinfection vibration duration input by the user; According to the second initial vibration frequency corresponding to the second vibrator or the third vibrator near the bottom of the vibration groove, the vibration intensity corresponding to the second vibrator or the third vibrator near the bottom of the vibration groove is adjusted between the second initial vibration intensity and the second target vibration intensity, and the vibration intensity is adjusted back and forth until the required disinfection vibration duration input by the user is reached; wherein the single adjustment continuous vibration duration corresponding to the second initial vibration intensity and the second target vibration intensity is 3s-5s; Obtaining a third target vibration intensity corresponding to the third vibrator or the second vibrator away from the bottom of the vibration groove according to the required disinfection vibration duration input by the user; According to the third initial vibration frequency corresponding to the third vibrator or the second vibrator away from the bottom of the vibration groove, the vibration intensity corresponding to the third vibrator or the second vibrator away from the bottom of the vibration groove is adjusted back and forth between the third initial vibration intensity and the third target vibration intensity until the required disinfection vibration duration input by the user is reached, wherein the single adjustment continuous vibration duration corresponding to the third initial vibration intensity and the third target vibration intensity is 3s-5s.
8. The endoscope cleaning and disinfection method according to claim 7, characterized in that: The first target vibration intensity is obtained by the following formula: Among them, S 01m Indicates the first target vibration intensity; S 03 Indicates the third initial vibration intensity; S 02 Represents the second initial vibration intensity; S 01 represents the first initial vibration intensity; T c Indicates the preset reference duration; T x represents the required disinfection vibration duration input by the user; s represents the first intensity regulation coefficient, and the first intensity regulation coefficient is obtained by the following formula: Where s represents the first intensity control coefficient; S 03 Indicates the third initial vibration intensity; S 02 Represents the second initial vibration intensity; S 01 Represents the first initial vibration intensity; S c Indicates a preset reference vibration intensity, and the reference vibration intensity is the minimum vibration intensity allowed to achieve the purpose of disinfection; At the same time, the second target vibration intensity is obtained by the following formula: Among them, S 02m Indicates the second target vibration intensity; S 01m Indicates the first target vibration intensity; S 02 Represents the second initial vibration intensity; S 01 represents the first initial vibration intensity; T c Indicates the preset reference duration; T x represents the required duration of disinfection vibration input by the user; s represents the first intensity control coefficient; Furthermore, the third target vibration intensity is obtained by the following formula: Among them, S 03m Indicates the third target vibration intensity; S 02m Indicates the second target vibration intensity; S 01m Indicates the first target vibration intensity; S 03 Indicates the third initial vibration intensity; S 02 Represents the second initial vibration intensity; S 01 represents the first initial vibration intensity; T c Indicates the preset reference duration; T x represents the required disinfection vibration duration input by the user; s represents the first intensity control coefficient; h represents the second intensity control coefficient, and the second intensity control coefficient is obtained by the following formula: Wherein, h represents the second intensity control coefficient; S 02m Indicates the second target vibration intensity; S 01m Indicates the first target vibration intensity; S 02 Represents the second initial vibration intensity; S 01 Indicates the first initial vibration intensity.
9. An endoscope cleaning and disinfection system, characterized in that: The endoscope cleaning and disinfection system comprises: The command information monitoring module is used to control the vibration controller to determine in real time whether the vibration start command input by the user and the required duration of disinfection vibration are received; An initial vibration control module is used to respectively start a plurality of vibrators installed inside the vibration tank after the vibration controller receives a vibration start instruction, so as to perform vibration disinfection on the endoscope in the vibration tank; wherein the start vibration tank contains a cleaning and disinfection solution; The vibration control module is used to control the vibration intensity of each vibrator through the vibration controller during the vibration disinfection process of the endoscope.
10. An endoscope cleaning and disinfecting device, characterized in that: The endoscope cleaning and disinfection device includes a vibration trough, a first vibrator, a second vibrator, a third vibrator, a vibration controller and a touch display screen; wherein the first vibrator is installed at the center position of the bottom inner surface of the vibration trough; the second vibrator and the third vibrator are respectively installed inside two opposite side walls of the vibration trough; the vibration control signal output end of the vibration controller is connected to the control signal input ends of the first vibrator, the second vibrator and the third vibrator; the parameter signal output end of the touch display screen is connected to the parameter signal input end of the vibration controller; at the same time, the two vibrators installed inside the two opposite side walls of the vibration trough are installed at different heights.
