Endoscope tube protection device for medical endoscopes

By integrating a top clamping and universal structure with a multi-angle rotation structure, the lens tube protection device solves the problems of cumbersome operation and poor adaptability of existing equipment, and achieves quick disassembly, multi-angle rotation and stable sealing effect, thereby improving the versatility and safety of the equipment.

CN120753558BActive Publication Date: 2026-04-03ANQING CHANGFAN MEDICAL EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-07-14
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing medical endoscope tube protection devices have fragmented functions and complex structures, resulting in cumbersome operation, unstable sealing effects, difficulty in compatibility with different models of endoscopes, increased equipment procurement and management costs, and a high risk of liquid and gas leaks.

Method used

A protective device for a mirror tube, including a top clamping and universal structure and a multi-angle rotation structure, was designed. It adopts components such as a rotating clamping ring and a rotating sealing ring to achieve quick disassembly and multi-angle rotation. Combined with the design of springs and O-rings, it ensures sealing performance and compatibility.

Benefits of technology

It improves the sealing performance and versatility of the equipment, reduces operational complexity, ensures compatibility with different models of endoscopes, reduces equipment procurement and management costs, prevents liquid and gas leaks, and improves the efficiency and safety of medical operations.

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Abstract

This invention relates to the field of medical device technology, and more particularly to a protective device for the endoscope tube of a medical endoscope. The device includes a main body with a top clamping and connecting structure and a multi-angle rotating structure. The top clamping and connecting structure includes a rotating clamping ring threadedly connected to the main body. An assembly consisting of a rotating clamping ring cover and a spring sandwiched between a movable block of the clamping ring is fitted onto the rotating clamping ring. A handle is located inside the rotating clamping ring, and a second spring and a contact point are placed inside the handle. A small O-ring seal is placed in a groove within the main body. The multi-angle rotating structure includes an outer tube welded to the main body. An angle ring and a clamping nut are sequentially fitted onto the outer tube. A rotating sealing ring is fitted onto the main body, and two large O-ring seals are installed in the groove of the rotating sealing ring. This invention uses a multi-threaded design to stably achieve rotation, while the top spring drives the movable block to freely move up and down for rapid clamping and sealing, enabling quick disassembly and multi-angle rotation.
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Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a protective device for the endoscope tube of a medical endoscope. Background Technology

[0002] In modern medicine, medical endoscopes are widely used in the diagnosis and treatment of various diseases, such as gastroscopy, colonoscopy, and laparoscopic surgery. As a crucial component ensuring the normal operation of the endoscope and patient safety, the performance of the endoscope tube protection device is of paramount importance.

[0003] However, current medical endoscope tube protection devices on the market have many problems. First, the functions of these devices are relatively dispersed, with each module operating independently, resulting in a complex overall structure. This not only increases the size and weight of the device but also makes installation and use cumbersome for medical personnel, hindering quick and accurate assembly and debugging, severely impacting the efficiency of medical operations. Simultaneously, the complex structure makes transportation and storage difficult, requiring more space and increasing the risk of damage during transport due to loosening or collisions. Furthermore, the assembly relationships of existing devices are unclear, and the coordination between components is poor. This results in inconsistent clamping and sealing of the endoscope, failing to effectively prevent liquid and gas leaks. In actual medical operations, leaks can lead to surgical area infections, increasing the risk of postoperative recovery for patients and even causing serious complications. In addition, most endoscope protection devices have poor compatibility, making them incompatible with different endoscope models. Hospitals often need to equip themselves with multiple adapters for different endoscope models, increasing equipment procurement and management costs. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a protective device for the endoscope tube of medical endoscopes, which has the advantages of quick disassembly and multi-angle rotation, and solves the problems of incompatibility with multiple models and difficulty in ensuring a seal.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A protective device for a medical endoscope tube includes a main body, wherein the main body is provided with a top clamping and fitting structure and a multi-angle rotation structure;

[0007] The top clamping and connecting structure includes a rotating clamping ring threadedly connected to the main body. An assembly consisting of a rotating clamping ring cover and a clamping ring movable block with a spring sandwiched in between is fitted on the rotating clamping ring. A handle is provided inside the rotating clamping ring, and a spring and a contact are placed inside the handle. An O-ring seal is placed in the groove of the main body. The circular hole of the rotating clamping ring is centered with the inclined groove of the main body.

[0008] The multi-angle rotating structure includes an outer tube welded to the main body, with angle color rings and clamping nuts sequentially fitted onto the outer tube. A rotating sealing ring is fitted onto the main body, and two O-rings are installed in the groove of the rotating sealing ring. Water valve right and water valve left are installed on the rotating sealing ring, and the rotating sealing ring is locked onto the main body by a conical clamping nut.

[0009] Preferably, the main body is threadedly connected to the rotating clamping ring. Rotating the clamping ring clockwise causes the clamping ring movable block to move downward. The top step of the clamping ring movable block clamps the endoscope. The O-ring seal inside the main body deforms with the Luer connector at the front of the endoscope to form a sealing ring.

[0010] Preferably, the top of the main body has a conical structure, which is larger than the endoscope lens portion.

[0011] Preferably, a spring is provided between the upper cover of the rotating clamping ring and the movable block of the clamping ring, and the contact point inside the handle pops out when the rotating clamping ring rotates to the bottom and falls into the corresponding circular groove of the main body.

[0012] Preferably, after the rotary sealing ring and the main body are assembled and locked with the conical clamping nut, a gap of 0.1mm is reserved. The O-rings at the front and rear ends of the rotary sealing ring deform after assembly, sealing the main body and the rotary sealing ring. The water outlet of the main body is located in the middle of the rotary sealing ring, and the main body has a reserved groove for overflow around the perimeter.

[0013] Preferably, the handle inside the rotary clamping ring is screwed onto the rotary clamping ring, and the spring and contact inside the handle cooperate with the rotary clamping ring to achieve locking and anti-accidental contact functions.

[0014] Preferably, after the right and left water valves are installed on the rotating sealing ring, rotating the rotating sealing ring allows water to flow from the outlet of the main body through the middle of the rotating sealing ring and into and out of the water valves. When the operation is blocked by the water valves, the operating angle can be adjusted by rotating the rotating sealing ring.

[0015] Preferably, the spring between the rotating clamping ring cover and the clamping ring movable block is used for telescopic adjustment to compensate for the excess front size caused by the size difference between the main body and the endoscope lens, while generating downward pressure to assist in locking the endoscope.

[0016] Preferably, the outer tube is fitted with an angle color ring and a clamping nut in sequence. The angle color ring is used to indicate the rotation angle, and the clamping nut is used to fix the relative position of the outer tube and the main body.

[0017] By employing the above technical solution, the present invention provides a protective device for the endoscope tube of a medical endoscope, which has at least the following beneficial effects:

[0018] 1. This endoscope tube protection device for medical endoscopes features a rotating clamping ring. When the clamping ring is rotated clockwise, it moves downwards along the thread, causing the movable clamping ring block to move downwards simultaneously. The stepped design at the top of the movable clamping ring block ensures a tight fit against the endoscope, forming the first line of physical sealing. Simultaneously, the O-ring seal inside the main body, upon contact with the Luer connector at the front of the endoscope, deforms under pressure to form a sealing ring, effectively preventing water and air leaks and greatly improving the sealing performance of the device.

[0019] 2. This endoscope tube protection device for medical endoscopes, when the rotating clamping ring is rotated to the bottom, the contact inside the handle pops out under the action of the mechanical structure and falls precisely into the corresponding circular groove of the main body. On the one hand, after the contact falls into the circular groove, the operator can intuitively understand that the device has completed the locking operation through obvious mechanical feedback or visual cues, which plays a clear locking indication role; on the other hand, it ensures that if the device is subjected to accidental collision or slight external force during normal use, the rotating clamping ring will not easily rotate counterclockwise, because a greater external force is required for the contact to pop out of the groove, thereby ensuring a stable connection of the endoscope during use.

[0020] 3. This endoscope tube protection device for medical endoscopes features a tapered top structure, slightly larger than the endoscope head, providing space for compatibility with different endoscope models. The spring between the rotating clamping ring cover and the movable block of the clamping ring plays a crucial role. This spring has an adjustable telescoping function, adapting to the size differences of the endoscope head and compensating for any excess size at the front. During clamping, the downward pressure generated by the spring further enhances the locking effect, ensuring a tight connection between different endoscope models and the device. This significantly improves the device's versatility, eliminating the need for hospitals to equip themselves with multiple adapters for different endoscope models, reducing equipment procurement and management costs. It also facilitates quick replacement of different endoscope models by medical staff during operation, improving work efficiency.

[0021] 4. This endoscope tube protection device for medical endoscopes has a 0.1mm gap after the rotating sealing ring is assembled and locked with the main body by a conical clamping nut, providing smooth rotation conditions for the device. Operators can rotate the rotating sealing ring according to actual operating needs to achieve multi-angle rotation of the device. The O-rings assembled at the front and rear ends of the rotating sealing ring will deform after installation, forming a sealing barrier to seal the main body and the rotating sealing ring, ensuring that water will not leak even during rotation.

[0022] 5. This endoscope tube protection device for medical endoscopes features a water outlet located in the center of a rotating sealing ring, with a pre-reserved groove to facilitate water overflow from all sides. Combined with the sealing structure formed by the large deformation of the O-ring seal within the rotating sealing ring, it ensures that water can flow normally in and out of the water valve while the rotating sealing ring is rotated. Regardless of how the device rotates, it maintains a stable water supply during medical procedures, without interruption or impact on flow rate or pressure. Even when visibility or operation is obstructed by the water valve's position, the operator can easily rotate the valve body to adjust the operating angle while still ensuring a stable water supply, providing strong support for the smooth conduct of medical procedures. Attached Figure Description

[0023] The accompanying drawings, which are provided to further illustrate the invention, constitute a part of this application:

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a schematic diagram showing the disassembled parts of the present invention;

[0026] Figure 3 This is a side view of the present invention.

[0027] Figure label:

[0028] 1. Rotary clamping ring cover; 2. Spring 1; 3. Clamping ring movable block; 4. Rotary clamping ring; 5. Contact point; 6. Spring 2; 7. Handle; 8. Small O-ring seal; 9. Main body; 10. Angle color ring; 11. Clamping nut; 12. Large O-ring seal; 13. Right water valve; 14. Left water valve; 15. Rotary sealing ring; 16. Conical clamping nut; 17. Outer tube. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, a protective device for the endoscope tube of a medical endoscope.

[0031] Example 1:

[0032] Currently, medical endoscope tube protection devices suffer from problems such as fragmented functions and complex structures, leading to inconvenience in installation and use, as well as difficulties in transportation and storage. Therefore, the endoscope tube protection device provided by this invention includes a main body 9, which is equipped with a top clamping and universal structure and a multi-angle rotation structure. By integrating the two core functions into the main body 9, the device has a compact structure, reduces component redundancy, and facilitates quick installation and use by medical personnel in medical operations. It also facilitates the transportation, storage, and maintenance of the device.

[0033] The existing medical endoscope protection equipment suffers from unclear assembly relationships, poor coordination among components, and unstable clamping and sealing effects. To address these issues, the top clamping and universal structure includes a rotating clamping ring 4 threadedly connected to the main body 9. The rotating clamping ring 4 is fitted with an assembly consisting of a rotating clamping ring cover 1 and a clamping ring movable block 3 with a spring 2 sandwiched between them. The rotating clamping ring 4 contains a handle 7, which houses a spring 6 and a contact point 5. An O-ring 8 is placed in a groove within the main body 9. The circular hole of the rotating clamping ring 4 is centered with the inclined groove of the main body 9. This clear assembly relationship and positioning ensures that all components work together during operation, laying the foundation for reliable clamping and sealing functions, guaranteeing stable equipment performance, and improving reliability and safety.

[0034] Traditional endoscopic protective devices suffer from inflexible viewing angle adjustments and are prone to water leakage during rotation, affecting operation. Therefore, the multi-angle rotating structure includes an outer tube 17 welded to the main body 9. Angle rings 10 and a clamping nut 11 are sequentially fitted onto the outer tube 17. A rotating sealing ring 15 is fitted onto the main body 9. Two O-rings 12 are installed in the groove of the rotating sealing ring 15. Water valves 13 (right) and 14 (left) are attached to the rotating sealing ring 15. The rotating sealing ring 15 is locked to the main body 9 by a conical clamping nut 16. The components and connection method of the multi-angle rotating structure provide flexible viewing angle adjustment capabilities for endoscopes during medical operations, allowing doctors to quickly adjust the endoscope angle according to different surgical sites and patient conditions, improving the accuracy and efficiency of surgical procedures. Simultaneously, the sealing design ensures the normal operation of the water flow system during rotation.

[0035] Existing equipment uses a single sealing method, resulting in poor sealing performance and a tendency for liquid and gas leaks. To address these issues, the main body 9 is threadedly connected to the rotating clamping ring 4. Rotating the clamping ring 4 clockwise causes the clamping ring movable block 3 to move downwards. The top step of the clamping ring movable block 3 presses against the endoscope. The O-ring seal 8 inside the main body 9 deforms with the Luer connector at the front of the endoscope to form a sealing ring. The combination of threaded drive and mechanical clamping, along with the deformation of the sealing ring, achieves a tight seal on the endoscope, effectively preventing liquid and gas leaks and avoiding risks such as infection caused by leaks during surgery. This provides a safe environment for medical operations and ensures patient safety.

[0036] Most endoscopic protective devices have poor compatibility and are difficult to integrate with different models of endoscopes. Therefore, the top of the main body 9 has a conical structure, larger than the endoscope head. Advantages: The conical structure design expands the device's compatibility with different models of endoscopes, allowing for a certain degree of dimensional error. This enables the device to be compatible with various endoscope sizes, reducing the cost for hospitals to purchase multiple adapters for different endoscope models, while also improving the device's versatility and ease of use.

[0037] Example 2:

[0038] Existing equipment cannot automatically adapt to endoscopes of different sizes and lacks locking prompts. To solve these problems, a new method is developed that combines... Figure 2 As shown, based on Embodiment 1, a spring 2 is provided between the rotating clamping ring cover 1 and the clamping ring movable block 3. The contact 5 inside the handle 7 pops out when the rotating clamping ring 4 is rotated to the bottom and falls into the corresponding circular groove of the main body 9. The spring 2 can be extended and retracted according to the size difference of the endoscope head, automatically compensating for the excess size at the front section, and ensuring that it can always provide good clamping force for endoscopes of different sizes. The pop-out and positioning function of the contact 5 not only provides clear locking prompts for operators, but also prevents the equipment from loosening due to accidental collisions, ensuring that the endoscope is stably connected during the operation and ensuring the smooth operation.

[0039] Previously, the sealing effect of the equipment was poor when rotating, and the water flow was easily interrupted. Therefore, specifically, after the rotating sealing ring 15 and the main body 9 are assembled and locked with the conical clamping nut 16, a gap of 0.1mm is reserved. The O-rings 12 at the front and rear ends of the rotating sealing ring 15 deform after assembly, sealing the main body 9 and the rotating sealing ring 15. The water outlet of the main body 9 is located in the middle of the rotating sealing ring 15. The reserved groove of the main body 9 is for overflow around the perimeter. The 0.1mm gap ensures that the rotating sealing ring 15 can rotate flexibly and realize multi-angle rotation function, while not affecting the sealing performance due to excessive gap. The deformation sealing of the sealing ring and the special water flow channel design ensure that the water flow can be stably entered and exited during rotation, and the water flow will not be interrupted or leaked due to rotation operation. This provides stable water flow support for medical operations, maintaining the cleanliness of the surgical area and clear vision.

[0040] The existing equipment has a single locking function and is easily loosened by external interference. Therefore, the handle 7 inside the rotating clamping ring 4 is screwed onto the rotating clamping ring 4. The spring 6 and contact 5 inside the handle 7 cooperate with the rotating clamping ring 4 to achieve locking and anti-accidental contact functions. The cooperation between the handle 7 and the internal spring 6 and contact 5 forms a double locking protection mechanism. The spring 6 provides a certain buffer and reset capability, and the locking effect of the contact 5 enhances the stability of the equipment after locking, effectively preventing the equipment from loosening due to external interference during medical operations, and improving the safety and reliability of the equipment.

[0041] Example 3:

[0042] Traditional equipment features independent water flow control and viewing angle adjustment, making operation cumbersome. Therefore, a combination of... Figure 2 As shown in Embodiment 1, after the right water valve 13 and the left water valve 14 are installed on the rotating sealing ring 15, rotating the rotating sealing ring 15 allows water to flow from the outlet of the main body 9 through the middle of the rotating sealing ring 15 and into and out through the water valve. When the operation is blocked by the water valve, the operating angle can be adjusted by rotating the rotating sealing ring 15. The combined design of the water valve and the rotating sealing ring 15 integrates the functions of water flow control and angle adjustment. Doctors can simultaneously achieve water flow adjustment and angle conversion without additional complicated operations during surgery, which improves the convenience and smoothness of surgical operation, helps to shorten the operation time, and improves the quality of surgery.

[0043] Existing equipment does not adapt well to endoscopes of different sizes, and the clamping force is unstable. To solve the above problems, a spring-2 between the rotating clamping ring cover 1 and the clamping ring movable block 3 is used for telescopic adjustment to compensate for the excess front size caused by the size difference between the main body 9 and the endoscope head. At the same time, it generates downward pressure to assist in locking the endoscope. The dual action mechanism of spring-2 not only realizes the adaptive adjustment to endoscopes of different sizes, but also enhances the clamping force, ensuring that it can be tightly connected to the equipment no matter how the endoscope size changes, improving the versatility and stability of the equipment, and reducing the surgical risks caused by compatibility problems.

[0044] Previously, the angle adjustment of the equipment lacked precise reference and structural stability. Therefore, the outer tube 17 is fitted with an angle color ring 10 and a clamping nut 11 in sequence. The angle color ring 10 is used to indicate the rotation angle, and the clamping nut 11 is used to fix the relative position of the outer tube 17 and the main body 9. The angle color ring 10 provides doctors with a direct reference when adjusting the endoscope angle, making the angle adjustment more precise and helping doctors to more accurately locate the surgical site. The clamping nut 11 ensures that the connection between the outer tube 17 and the main body 9 is firm, maintains structural stability during multi-angle rotation, ensures the overall performance of the equipment is reliable, and provides stable support for medical operations.

[0045] As can be seen from the above embodiments: the rotating clamping ring cover 1, spring 1 2, and clamping ring movable block 3 are assembled in sequence and then fitted onto the rotating clamping ring 4; spring 2 6 and contact 5 are placed inside the handle 7; small O-ring seal 8 is placed into the groove of the main body 9; the rotating clamping ring 4 is screwed onto the main body 9 according to the thread definition position, so that the round hole of the rotating clamping ring 4 is centered with the inclined groove of the main body 9, and then the handle 7 is screwed onto the rotating clamping ring 4; the main body 9 is welded to the outer tube 17, and angle color ring 10 and clamping nut 11 are fitted onto it in sequence; two large O-ring seals 12 are installed in the groove of the rotating sealing ring 15, water valve right 13 and water valve left 14 are installed onto the rotating sealing ring 15, and then the rotating sealing ring 15 is fitted onto the main body 9 and locked with conical clamping nut 16. In use, rotate the clamping ring 4 clockwise. Its downward movement along the thread causes the clamping ring movable block 3 to move down. The top step of the clamping ring movable block 3 clamps the endoscope. At the same time, the small O-ring seal 8 inside the main body 9 and the Luer connector at the front of the endoscope are deformed under pressure to form a sealing ring. When the clamping ring 4 is rotated to the bottom, the contact 5 inside the handle 7 pops out and falls into the corresponding circular groove of the main body 9 to indicate locking and prevent accidental rotation. With the tapered structure at the top of the main body 9 and the extension and retraction adjustment of the spring 2 between the upper cover 1 of the clamping ring and the movable block 3, it can be adapted to different endoscope lens parts. When the viewing angle needs to be adjusted, rotate the rotating sealing ring 15. The 0.1mm gap reserved between it and the main body 9 can be used to achieve multi-angle rotation. The large O-ring seal 12 inside the rotating sealing ring 15 deforms and seals. The water outlet of the main body 9 is located in the middle of the rotating sealing ring 15. With the overflow groove design, it ensures that the water flows normally in and out of the water valve when rotating.

[0046] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective device for the endoscope tube of a medical endoscope, comprising a main body (9), characterized in that: The main body (9) is provided with a top clamping and connecting structure and a multi-angle rotation structure; The top clamping and connecting structure includes a rotating clamping ring (4) threadedly connected to the main body (9). The rotating clamping ring (4) is fitted with an assembly consisting of a rotating clamping ring cover (1) and a clamping ring movable block (3) with a spring (2) sandwiched in between. The rotating clamping ring (4) has a handle (7) inside. The handle (7) contains a spring (6) and a contact (5). The main body (9) has a small O-ring seal (8) inside its groove. The circular hole of the rotating clamping ring (4) is centered with the inclined groove of the main body (9). The multi-angle rotating structure includes an outer tube (17) welded to the main body (9). An angle color ring (10) and a clamping nut (11) are sequentially fitted onto the outer tube (17). A rotating sealing ring (15) is fitted onto the main body (9). Two O-ring seals (12) are installed in the groove of the rotating sealing ring (15). Water valve right (13) and water valve left (14) are installed on the rotating sealing ring (15). The rotating sealing ring (15) is locked onto the main body (9) by a conical clamping nut (16). The spring 1 (2) between the rotating clamping ring cover (1) and the clamping ring movable block (3) is used for telescopic adjustment to compensate for the extra front size caused by the size difference between the main body (9) and the endoscope lens, while generating downward pressure to assist in locking the endoscope.

2. The endoscope tube protection device for medical endoscopes according to claim 1, characterized in that: The main body (9) is threadedly connected to the rotating clamping ring (4). Rotating the rotating clamping ring (4) clockwise causes the clamping ring movable block (3) to move downward. The top step of the clamping ring movable block (3) presses the endoscope. The O-ring seal (8) inside the main body (9) deforms with the Luer connector at the front of the endoscope to form a seal.

3. The endoscope tube protection device for medical endoscopes according to claim 1, characterized in that: The top of the main body (9) is a conical structure, which is larger than the endoscope lens.

4. The endoscope tube protection device for medical endoscopes according to claim 1, characterized in that: A spring (2) is provided between the upper cover (1) of the rotating clamping ring and the movable block (3) of the clamping ring. The contact (5) inside the handle (7) pops out when the rotating clamping ring (4) rotates to the bottom and falls into the corresponding circular groove of the main body (9).

5. The endoscope tube protection device for medical endoscopes according to claim 1, characterized in that: After the rotating sealing ring (15) and the main body (9) are assembled and locked with the conical compression nut (16), a gap of 0.1mm is reserved. The O-rings (12) at the front and rear ends of the rotating sealing ring (15) are deformed after assembly, which seals the main body (9) and the rotating sealing ring (15). The outlet of the main body (9) is located in the middle of the rotating sealing ring (15), and the main body (9) has a reserved groove for overflow around the perimeter.

6. The endoscope tube protection device for medical endoscopes according to claim 1, characterized in that: The handle (7) inside the rotating clamping ring (4) is screwed onto the rotating clamping ring (4). The spring (6) and contact (5) inside the handle (7) cooperate with the rotating clamping ring (4) to achieve locking and anti-accidental contact functions.

7. The endoscope tube protection device for medical endoscopes according to claim 1, characterized in that: After the right (13) and left (14) water valves are installed on the rotating sealing ring (15), the rotating sealing ring (15) is rotated, and the water flow can enter and exit through the water valve from the outlet of the main body (9) through the middle of the rotating sealing ring (15). When the operation is blocked by the water valve, the operating angle can be adjusted by rotating the rotating sealing ring (15).

8. The endoscope tube protection device for medical endoscopes according to claim 1, characterized in that: The outer tube (17) is fitted with an angle color ring (10) and a clamping nut (11) in sequence. The angle color ring (10) is used to indicate the rotation angle, and the clamping nut (11) is used to fix the relative position of the outer tube (17) and the main body (9).

Citation Information

Patent Citations

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