Universal soft endoscope system

Abstract

The invention discloses a universal soft endoscope system which comprises a reusable handle, and a threaded connector is arranged at the front end of the handle and used for being connected with a disposable soft endoscope consumable assembly. The threaded connector extends outwards to be provided with a flexible camera sleeve, and the end of the flexible camera sleeve is connected with a reusable camera assembly through a snake bone assembly. At least one group of traction assembly is arranged in the handle and is used for driving the camera assembly to steer; the camera assembly is electrically connected to the control device, and the control device is used for processing image signals collected by the camera assembly and / or controlling the traction assembly to achieve steering of the camera assembly. The disposable flexible lens consumable assembly is one of a disposable gastroscope consumable assembly, a cystoscope consumable assembly or a bronchoscope consumable assembly and a ureteroscope consumable assembly. The problems that an existing soft endoscope is high in cost, use convenience and safety are insufficient, and performance is difficult to guarantee are solved, cost is reduced, and meanwhile performance and use safety are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of endoscopes, and in particular relates to a universal flexible endoscope system. Background Art

[0002] 1. Current Status and Problems of Flexible Endoscope Market As a crucial diagnostic and therapeutic tool in modern medicine, endoscopes play an irreplaceable role in clinical applications. Flexible endoscopes, with their unique flexibility and adaptability, are widely used in the examination and treatment of soft tissues such as the digestive, respiratory, and urinary systems. They provide doctors with an intuitive and clear view of the body's interior, greatly improving diagnostic accuracy and treatment effectiveness. However, flexible endoscopes currently only hold approximately 12% of the overall endoscope market. Despite their high technical barriers to entry, they hold enormous growth potential.

[0003] Currently, traditional flexible endoscopes face numerous challenges in practical application. Due to their soft material, they can easily damage the human body's cavities during operation, causing additional pain and risk to patients. Furthermore, the complex and curvy structure of the human body makes cleaning flexible endoscopes extremely difficult. With increasingly stringent sterilization requirements for medical devices, the cleaning and sterilization process for traditional flexible endoscopes is not only time-consuming and labor-intensive, but also difficult to ensure complete sterility, increasing the risk of cross-infection and seriously impacting medical safety.

[0004] 2. Development Dilemma of Disposable Flexible Endoscopes To address the sterilization and infection control challenges of traditional flexible endoscopes, companies are turning their attention to the development and production of disposable flexible endoscopes. Disposable flexible endoscopes theoretically offer promising prospects for effective cross-infection prevention and improved medical safety. However, most current disposable flexible endoscopes suffer from serious design flaws.

[0005] The light source, imaging, steering, and mechanical systems of these disposable soft endoscopes are all designed for single use. This design model results in high product costs. The high cost has led to extremely low acceptance of disposable soft endoscopes by the public and the medical insurance payment system, severely limiting their promotion and application in the market. In addition, for cost control reasons, the various systems of disposable soft endoscopes have to use low-cost components. However, this approach comes at the expense of product performance, resulting in the performance indicators of disposable soft endoscopes failing to meet the requirements of traditional soft endoscopes, and thus unable to guarantee diagnostic and treatment results, making it difficult to meet actual clinical needs.

[0006] 3. Comprehensive contradictions in cost, usage and performance of existing flexible endoscope systems Overall, existing flexible endoscope systems, whether traditional reusable or disposable, have failed to effectively address the conflict between cost, ease of use, and performance. While traditional flexible endoscopes are relatively low-cost, they are difficult to clean and sterilize, pose a high risk of lumen damage, and have low turnover rates. While disposable flexible endoscopes address sterilization issues to some extent, they remain difficult to gain market acceptance due to their high cost and poor performance.

[0007] Therefore, developing a flexible endoscope system that can effectively reduce costs and ease the burden on patients while ensuring good performance, improving ease of use, and ensuring safety has become a key issue that needs to be addressed in the current endoscopy field. This invention addresses this situation by proposing an innovative universal flexible endoscope system, aiming to overcome the limitations of existing technologies and bring new changes to the clinical application of flexible endoscopes. Summary of the Invention

[0008] In response to the problems existing in the prior art, the present invention provides a universal flexible endoscope system to solve the contradictions of existing flexible endoscopes such as high cost, insufficient convenience and safety, and difficult performance guarantee, thereby reducing costs while improving performance and safety of use.

[0009] The present invention is achieved as follows: a universal flexible endoscope system, characterized by comprising: a reusable handle, the handle consisting of two split, buckled handle shells; The front end of the handle is provided with a threaded interface for connecting a disposable soft lens consumable assembly; A flexible camera sleeve fixed to the handle is provided outwardly extending from the threaded interface, and a reusable light source is provided in the flexible camera sleeve; the end of the flexible camera sleeve is connected to a reusable camera assembly via a snake bone assembly; At least one pulling assembly is provided in the handle housing for driving the camera assembly to turn; The camera assembly is configured to be connected to a control device via a wired or wireless manner, and the control device is used to process the image signal collected by the camera assembly and / or control the pulling assembly to achieve the steering of the camera assembly; The disposable soft endoscope consumable assembly is one of a disposable gastroscope consumable assembly, a disposable cystoscope consumable assembly, a disposable bronchoscope consumable assembly or a disposable ureteroscope consumable assembly; and an independent operating channel is provided in the consumable assembly, and the operating channel includes at least a camera channel and a negative pressure drainage / instrument channel, wherein the distal end of the camera channel is a perspective closed end.

[0010] Further preferably, the pulling assembly includes a turntable rotatably arranged in the handle housing; two steering wires are connected to the turntable, and the other ends of the steering wires are connected to both sides of the snake bone assembly; the turntable is connected to a push rod that drives it to rotate; the push rod is configured to drive the camera assembly to turn in two relative directions through the turntable and the steering wires when it rotates clockwise or counterclockwise.

[0011] Further preferably, a wire drawing sheath is mounted on the steering wire drawing in the handle housing; close to the turntable side, two wire drawing sheaths are arranged on a wire branching seat; a wire drawing sheath pressure plate is installed on the wire branching seat.

[0012] Further preferably, the pulling assembly is provided with two groups; the two groups of pulling assemblies are respectively provided in the installation areas of the two handle shells, for driving the camera assembly to turn in four directions.

[0013] Further preferably, the pulling assembly includes a turntable rotatably arranged in the handle housing; two steering wires are connected to the turntable, and the other ends of the steering wires are connected to both sides of the snake bone assembly; the turntable is connected to a drive motor that drives it to rotate, and the drive motor is configured to drive the camera assembly to turn in two relative directions through the turntable and the steering wires when rotating forward or reverse.

[0014] Further preferably, the control device is also electrically connected to an interface; the interface is configured to be used for connecting an air pump, a water pump and / or a negative pressure aspirator device to meet the operational requirements of different departments.

[0015] Further preferably, the disposable gastroscope consumables assembly includes a support connecting part and a flexible tube body, the end of the support connecting part is rotatably provided with a handle connecting nut, and the support connecting part and the flexible tube are provided with independent camera channels, water pump / air pump channels and negative pressure drainage / instrument channels, wherein the end of the camera channel is a perspective closed end, and the support connecting part is provided with a water pump / air pump channel interface and a negative pressure drainage / instrument channel interface.

[0016] Further preferably, the disposable cystoscope consumable assembly includes a support connecting part and a flexible tube body, the end of the support connecting part is rotatably provided with a handle connecting nut, and the support connecting part and the flexible tube are provided with independent camera channels, water / lithotomy fiber optic channels and negative pressure drainage / instrument channels, wherein the end of the camera channel is a perspective closed end, and the length of the flexible tube body is 400-500mm; the support connecting part is provided with a negative pressure drainage / instrument channel interface and a water / lithotomy fiber optic interface.

[0017] Further preferably, the disposable bronchoscope consumable assembly includes a support connecting part and a flexible tube body, the end of the support connecting part is rotatably provided with a handle connecting nut, and the support connecting part and the flexible tube are provided with independent camera channels and negative pressure drainage / instrument channels, wherein the end of the camera channel is a perspective closed end, and the support connecting part is provided with a negative pressure drainage / instrument channel interface.

[0018] Further preferably, the disposable ureteroscope consumable assembly includes a support connection part and a flexible tube body, the end of the support connection part is rotatably provided with a handle connecting nut, and the support connection part and the flexible tube are provided with independent camera channels, water / lithotomy fiber optic channels and negative pressure drainage / instrument channels, wherein the end of the camera channel is a perspective closed end, the length of the flexible tube body is 600~750mm, and the support connection part is provided with a negative pressure drainage / instrument channel interface and a water / lithotomy fiber optic interface.

[0019] Advantages and technical effects of the present invention: The universal flexible endoscope system of the present invention has many significant technical effects, bringing many advantages to medical examination and treatment.

[0020] In terms of safety and cost-effectiveness, the device incorporates a reusable handle and disposable soft endoscope consumables. The disposable consumables eliminate the risk of cross-infection and ensure patient safety. The reusable handle reduces the cost per use, alleviating the burden on patients and medical insurance. The split, snap-fit ​​handle housing facilitates installation and maintenance, improving device maintainability.

[0021] For operational flexibility and precision, various pull assembly designs enable flexible camera steering. Whether driven by a push rod or a motor-driven turntable, the camera's steering angle and direction can be precisely controlled. Some designs even enable four-way steering, significantly expanding the field of view and enabling doctors to more flexibly and comprehensively observe the human body, improving diagnostic and treatment accuracy while reducing patient pain and surgical time.

[0022] In terms of functional integration and expandability, the control device is equipped with multiple device interfaces that can connect to air pumps, water pumps, negative pressure aspirators, etc., meeting the operational needs of different departments, achieving integrated operation, and improving clinical efficiency and convenience. At the same time, the disposable consumable components are designed with independent channels based on the needs of different departments, such as the water pump / air pump channel of the gastroscope component, the water / lithotripsy fiber channel of the bronchoscope component, and the laser channel of the ureteroscope component. Each channel is independent and works together, expanding the device's functionality and adapting to more clinical scenarios.

[0023] In addition, component design focuses on practicality and stability, such as the brushed sheath protecting the steering brushed wire, the branching seat and pressure plate making the installation neat and orderly, and the perspective closed-end camera channel protecting the camera, etc., which improves the system reliability and service life and provides reliable support for medical work. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural diagram of embodiment 1 of the present invention; Figure 2 and Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention with one side of the handle shell removed; Figure 4 This is a schematic diagram of the structure of the fourth embodiment in which the pulling assembly is provided with two groups; Figure 5 This is a schematic diagram of the drive structure of the turntable drive motor in Example 5; Figure 6 This is a schematic diagram of the external structure of the control device of Example 6; Figure 7 This is a schematic diagram of the structure of disposable gastroscope consumables components; Figure 8 yes Figure 7 Middle AA section view; Figure 9 It is a schematic diagram of the structure of disposable cystoscope consumable components; Figure 10 yes Figure 9 Middle BB cross-section; Figure 11 It is a schematic diagram of the structure of disposable bronchoscope consumable components; Figure 12 yes Figure 11 Middle DD section view; Figure 13 This is a schematic diagram of the structure of disposable ureteroscope consumable components.

[0025] In the figure: 1. handle; 101. handle shell; 2. threaded interface; 3. disposable soft mirror consumable assembly; 301. support connection part; 302. flexible tube body; 303. handle connecting nut; 304. camera channel; 305. water pump / air pump channel; 306. negative pressure drainage / instrument channel; 307. water pump / air pump channel interface; 308. negative pressure drainage / instrument channel interface; 309. water / gravel fiber optic channel; 310. water / gravel fiber optic interface; 4. flexible camera sleeve; 5. optical fiber; 6. snake bone assembly; 7. camera assembly; 8. pulling assembly; 801. turntable; 802. steering wire drawing; 803. push rod; 804. wire drawing sheath; 805. branching seat; 806. wire drawing sheath pressure plate; 807. drive motor; 9. control device; 10. interface; 11. control button DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] Example 1: Basic structure of universal flexible endoscope system like Figures 1 to 3 As shown, a universal flexible endoscope system includes a reusable handle 1 composed of two separate, interlocking handle housings 101. A threaded interface 2 is provided at the front end of the handle 1 for connecting a disposable flexible endoscope consumable assembly 3, which can be a disposable gastroscope, cystoscope, bronchoscope, or ureteroscope. The consumable assembly also includes independent operating channels, including at least a camera channel and a negative pressure drainage / instrument channel. The distal end of the camera channel is a closed, fluoroscopic end.

[0028] Extending outward from the threaded interface 2 is a flexible camera sleeve 4 secured to the handle. A reusable light source, such as an LED or an enhanced light source housed within the handle housing, is housed within the sleeve, along with an optical fiber 5 that transmits the intense light. As is well known, LEDs generate heat over time, potentially causing patient discomfort. Because the flexible camera sleeve 4 requires a change in orientation, its walls cannot be made thicker. Separating the disposable consumables from the camera assembly, with the disposable consumables encased within the flexible camera sleeve 4, provides a degree of isolation and reduces patient discomfort.

[0029] The end of the flexible camera cannula 4 is connected to the camera assembly 7 via a snake assembly 6. At least one pull assembly 8 is located within the handle housing 101, which is used to steer the camera assembly 7. The camera assembly 7 is connected to a control device 9 via a wired or wireless connection. The control device 9 is used to process image signals captured by the camera assembly 7 and / or manipulate the pull assembly 8 to steer the camera assembly 7.

[0030] Technical effect of this embodiment: The universal endoscope system of this embodiment, through the design of combining a reusable handle with a disposable endoscope consumable component, not only ensures the disposable use of the part that comes into contact with the human body, effectively avoids cross infection, and improves medical safety; it also makes the high-value handle part reusable, reduces the cost of single use, and reduces the burden on patients and the medical insurance payment system. At the same time, the split-type snap-fit ​​handle shell facilitates the installation and maintenance of internal components, improving the maintainability of the equipment. The diversified design of the disposable endoscope consumable component meets the inspection needs of different departments and enhances the versatility and practicality of the system.

[0031] Example 2: Specific pulling component structure See also Figures 2 to 3 Based on the first embodiment, the pulling assembly 8 includes a turntable 801 rotatably disposed within the handle housing 101. Two steering wires 802 are connected to the turntable 801, the other ends of which are connected to the two sides of the snake assembly 6. The turntable 801 is connected to a push rod 803 that drives its rotation. Push rod 803 is configured to rotate in two opposite directions via the turntable 801 and the steering wires 802 when rotated clockwise or counterclockwise.

[0032] The technical effects of this embodiment are as follows: This pull assembly has a simple and reliable structure. A push rod drives the turntable, which in turn drives the steering wire to achieve steering operation of the camera assembly. This mechanical transmission method offers high stability and precision, enabling accurate control of the camera assembly's steering angle and direction, providing doctors with a clear and stable field of view, and helping to improve the accuracy of diagnosis and treatment. Furthermore, this structure is easy to manufacture and assemble, reducing production costs and facilitating subsequent maintenance and repair.

[0033] Example 3: Pulling assembly structure with drawing sheath and branching seat See also Figures 2 to 3 Based on the second embodiment, a wire drawing sheath 804 is mounted on the steering wire drawing 802 in the handle housing 101. Near the turntable 801, two wire drawing sheaths 804 are mounted on a wire splitter seat 805. A wire drawing sheath pressing plate 806 is mounted on the wire splitter seat 805.

[0034] The technical effect of this embodiment is as follows: The setting of the wire drawing sheath can effectively protect the steering wire drawing, prevent it from being worn or scratched during movement, extend the service life of the steering wire drawing, and improve the reliability of the system. The use of the branching seat and the wire drawing sheath pressure plate makes the installation of the wire drawing sheath more neat and orderly, avoids mutual entanglement and interference between the wires, and ensures the smooth movement of the steering wire drawing. This not only helps to improve the flexibility and accuracy of the camera assembly steering, but also reduces the number of equipment repairs caused by wire drawing failures and reduces the cost of use.

[0035] Example 4: Two sets of pulling components to achieve four-way steering See also Figure 4 On the basis of the first embodiment, two groups of pulling components 8 are provided. The two groups of pulling components 8 are respectively provided in the installation areas of the two handle housings 101, and are used to drive the camera component 7 to turn in four directions.

[0036] The technical effect of this embodiment: The design of two pull-out assemblies enables the camera assembly to steer in four directions, significantly expanding the camera's field of view. This allows doctors to more flexibly observe different parts of the human body without having to frequently adjust the overall position of the endoscope. This is of great significance for the examination and treatment of complex structures, improving operational convenience and efficiency, reducing patient pain and surgical time. This design also enhances the system's adaptability and versatility, enabling it to meet the clinical needs of a wider range of scenarios.

[0037] Example 5: Motor-driven pulling assembly structure See also Figure 5 Based on the first embodiment, the pulling assembly 8 includes a turntable 801 rotatably disposed within the handle housing 101. Two steering wires 802 are connected to the turntable 801, the other ends of which are connected to the two sides of the snake assembly 6. The turntable 801 is connected to a drive motor 807 to drive its rotation. The drive motor 807 is configured to drive the camera assembly 7 in two opposite directions during forward or reverse rotation via the turntable 801 and the steering wires 802.

[0038] The technical effect of this embodiment is that a drive motor drives the turntable, achieving automated control of the camera assembly's steering. Compared to manually operated push rods, motor-driven operation offers greater precision and stability, enabling more accurate control of the camera assembly's steering angle and speed. Doctors can easily adjust the camera's direction using the control device, improving operational convenience and comfort. Furthermore, the motor-driven operation can be integrated with other automated systems to achieve more complex operational functions, laying the foundation for the future development of intelligent flexible endoscopes.

[0039] Example 6: Control device with multiple device interfaces See also Figure 6 Based on the first embodiment, the control device 9 can be disposed within the handle housing or connected to the control device externally via a wiring harness. The control device is provided with an electrical connection interface 10. Interface 10 is configured for connecting to an air pump, water pump, and / or a vacuum aspirator to meet the operational requirements of different departments. Corresponding air pump, water pump, and vacuum aspirator control buttons 11 are provided on the handle in conjunction with the interface.

[0040] Technical effect of this embodiment: The control device is equipped with multiple device interfaces, enabling the universal flexible endoscope system to connect and work in conjunction with devices such as air pumps, water pumps, and negative pressure aspirators. This greatly expands the system's functions and application range. For example, in gastroenterology examinations, water injection can be achieved by connecting a water pump, facilitating observation of the gastrointestinal mucosa; in urology surgery, connecting a negative pressure aspirator can promptly remove blood and secretions from the surgical area, maintaining a clear surgical field of view. This integrated design improves the efficiency and convenience of clinical operations and reduces the space occupied by the equipment and operating costs.

[0041] Example 7: Disposable gastroscope consumables assembly structure See also Figures 7 and 8 The disposable gastroscope consumable assembly includes a support and connection portion 301 and a flexible tube 302. A handle connection nut 303 is rotatably mounted at the end of the support and connection portion 301. The support and connection portion 301 and the flexible tube 302 house independent camera channels 304, water pump / air pump channels 305, and negative pressure drainage / instrument channels 306. The camera channel 304 has a transparent closed end. The support and connection portion 301 is equipped with a water pump / air pump channel interface 307 and a negative pressure drainage / instrument channel interface 308.

[0042] Technical effect of this embodiment: This structural design of the disposable gastroscope consumables assembly sets the camera channel, water pump / air pump channel and negative pressure drainage / instrument channel independently from each other, avoiding mutual interference between the channels and ensuring the normal function of each channel. The camera channel design with a perspective closed end can protect the camera while ensuring a clear field of view. The setting of the handle connecting nut facilitates the quick connection and disassembly with the handle, improving the convenience of operation. The design of the water pump / air pump channel interface and the negative pressure drainage / instrument channel interface meets the operational requirements of water injection, suction, etc. during gastroscopy, providing doctors with a more comprehensive and convenient inspection method.

[0043] Example 8: Disposable cystoscope consumable component structure See also Figures 9 and 10The disposable cystoscope consumable assembly includes a support connector 301 and a flexible tubular body 302. A handle connection nut 303 is rotatably mounted at the end of the support connector 301. The support connector 301 and flexible tubular body 302 house independent camera channels 304, water / lithotomy fiber optic channels 309, and negative pressure drainage / instrument channels 306. The camera channel 304 has a transparent closed end. The flexible tubular body is 400-500 mm long. The support connector 301 is equipped with a negative pressure drainage / instrument channel interface 308 and a water / lithotomy fiber optic interface 310.

[0044] Technical effect of this embodiment: The structural design of this disposable cystoscope consumable component fully considers the special needs of cystoscopic examination and treatment. The independent camera channel ensures a clear field of view, making it easier for doctors to observe the internal conditions of the bladder. The setting of the water / lithotomy fiber optic channel allows for operations such as water injection and lithotripsy during the examination, expanding the function of the cystoscope. The negative pressure drainage / instrument channel can be used to attract secretions and insert instruments for treatment. The channels are independent of each other and work together, which improves the efficiency and safety of cystoscopic examination and treatment and provides patients with better medical services.

[0045] Example 9: Disposable bronchoscope consumable assembly structure See also Figures 11 to 12 The disposable bronchoscope consumable assembly includes a support connector 301 and a flexible tubular body 302. A handle connection nut 303 is rotatably mounted at the end of the support connector 301. The support connector 301 and the flexible tubular body 302 house independent camera channels 304 and negative pressure drainage / instrument channels 306. The camera channel 304 has a transparent closed end. A negative pressure drainage / instrument channel interface 308 is provided on the support connector 301.

[0046] Technical effect: This disposable bronchoscope consumable component has a relatively simple structure, which reduces manufacturing costs while meeting basic bronchoscopic examination needs. The independent camera channel and negative pressure drainage / instrument channel ensure clear vision and secretion suction during the examination. The camera channel with a perspective closed end effectively protects the camera and increases the service life of the equipment. The handle connecting nut facilitates connection and disassembly with the handle, facilitating clinical operation. This structure is suitable for some bronchoscopic examination scenarios with relatively low functional requirements, and has certain economy and practicality.

[0047] Example 10: Disposable ureteroscope consumable component structure See also Figure 13The disposable ureteroscope consumable assembly includes a support connector 301 and a flexible tubular body 302. A handle connection nut 303 is rotatably mounted at the end of the support connector 301. The support connector 301 and flexible tubular body 302 house independent camera channels 304, water / lithotomy fiber channels 309, and negative pressure drainage / instrument channels 306. The camera channel 304 has a closed, see-through end. The flexible tubular body is 600-750 mm long. The support connector 301 is equipped with a negative pressure drainage / instrument channel interface 308 and a water / lithotomy fiber channel interface 310.

[0048] Technical effect of this embodiment: This structural design of the disposable ureteroscope consumable assembly is optimized for the inspection and treatment characteristics of ureteroscopy. The independent camera channel provides doctors with a clear view of the inside of the ureter, facilitating accurate diagnosis of the condition. The setting of the laser channel enables treatment operations such as laser lithotripsy during the inspection process, realizing the integration of inspection and treatment. The negative pressure drainage / instrument channel can be used to attract urine, secretions, and insert instruments for further treatment. The various channels cooperate with each other to improve the efficiency and success rate of ureteroscopic surgery and reduce the patient's pain and surgical risks.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A universal flexible endoscope system, characterized in that: include: A reusable handle, the handle consisting of two separate, snap-fit ​​handle shells; The front end of the handle is provided with a threaded interface for connecting a disposable soft lens consumable assembly; A flexible camera sleeve fixed to the handle is provided outwardly extending from the threaded interface, and a reusable light source is provided in the flexible camera sleeve; the end of the flexible camera sleeve is connected to a reusable camera assembly via a snake bone assembly; At least one pulling assembly is provided in the handle housing for driving the camera assembly to turn; The camera assembly is configured to be connected to a control device via a wired or wireless manner, and the control device is used to process the image signal collected by the camera assembly and / or control the pulling assembly to achieve the steering of the camera assembly; The disposable soft endoscope consumable assembly is one of a disposable gastroscope consumable assembly, a disposable cystoscope consumable assembly, a disposable bronchoscope consumable assembly or a disposable ureteroscope consumable assembly; and an independent operating channel is provided in the consumable assembly, and the operating channel includes at least a camera channel and a negative pressure drainage / instrument channel, wherein the distal end of the camera channel is a perspective closed end.

2. The universal flexible endoscope system according to claim 1, characterized in that: The pulling assembly includes a turntable rotatably arranged in the handle housing; two steering wires are connected to the turntable, and the other ends of the steering wires are connected to the two sides of the snake bone assembly; the turntable is connected to a push rod that drives it to rotate; the push rod is configured to drive the camera assembly to turn in two relative directions through the turntable and the steering wires when it rotates clockwise or counterclockwise.

3. The universal flexible endoscope system according to claim 2, characterized in that: In the handle housing, a wire drawing sheath is mounted on the steering wire drawing; close to the turntable side, two wire drawing sheaths are arranged on a wire branching seat; a wire drawing sheath pressing plate is installed on the wire branching seat.

4. The universal flexible endoscope system according to claim 2 or 3, characterized in that: There are two groups of pulling components; the two groups of pulling components are respectively arranged in the installation areas of the two handle shells, and are used to drive the camera assembly to turn in four directions.

5. The universal flexible endoscope system according to claim 1, characterized in that: The pulling assembly includes a turntable rotatably arranged in the handle housing; two steering wires are connected to the turntable, and the other ends of the steering wires are connected to the two sides of the snake bone assembly; the turntable is connected to a drive motor that drives it to rotate, and the drive motor is configured to drive the camera assembly to turn in two relative directions through the turntable and the steering wires when rotating forward or reverse.

6. The universal flexible endoscope system according to claim 1, characterized in that: The control device is also electrically connected to an interface; the interface is configured to be used to connect an air pump, a water pump and / or a negative pressure aspirator device to meet the operational requirements of different departments.

7. The universal flexible endoscope system according to claim 1, characterized in that: The disposable gastroscope consumables assembly includes a support connection part and a flexible tube body. The end of the support connection part is rotatably provided with a handle connecting nut. The support connection part and the flexible tube are provided with independent camera channels, water pump / air pump channels and negative pressure drainage / instrument channels. The end of the camera channel is a perspective closed end, and the support connection part is provided with a water pump / air pump channel interface and a negative pressure drainage / instrument channel interface.

8. The universal flexible endoscope system according to claim 1, characterized in that: The disposable cystoscope consumable assembly includes a support connection part and a flexible tube body. The end of the support connection part is rotatably provided with a handle connecting nut. The support connection part and the flexible tube are provided with independent camera channels, water / lithotomy fiber optic channels and negative pressure drainage / instrument channels. The end of the camera channel is a perspective closed end. The length of the flexible tube body is 400-500mm; the support connection part is provided with a negative pressure drainage / instrument channel interface and a water / lithotomy fiber optic interface.

9. The universal flexible endoscope system according to claim 1, characterized in that: The disposable bronchoscope consumable assembly includes a support connection part and a flexible tube body. The end of the support connection part is rotatably provided with a handle connecting nut. The support connection part and the flexible tube are provided with independent camera channels and negative pressure drainage / instrument channels, wherein the end of the camera channel is a perspective closed end, and the support connection part is provided with a negative pressure drainage / instrument channel interface.

10. The universal flexible endoscope system according to claim 1, characterized in that: The disposable ureteroscope consumable assembly includes a support connection part and a flexible tube body. The end of the support connection part is rotatably provided with a handle connecting nut. The support connection part and the flexible tube are provided with independent camera channels, water / lithotomy fiber channels and negative pressure drainage / instrument channels. The end of the camera channel is a perspective closed end. The length of the flexible tube body is 600~750mm. The support connection part is provided with a negative pressure drainage / instrument channel interface and a water / lithotomy fiber optic interface.

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