Fish float transmission structure of operation part of disposable electronic gastrointestinal endoscope

Abstract

The invention relates to the technical field of medical instruments, in particular to a float transmission structure of a disposable electronic gastrointestinal endoscope operating portion, which comprises two float transmission parts, two ends of each float transmission part are rotatably connected with a rotation adjusting mechanism, and a flexible inhaul cable is wound on each float transmission part. One end of the flexible inhaul cable is fixedly connected with the float transmission piece, and the other end of the flexible inhaul cable is connected to the two ends of the bending control part respectively. When external force is applied to one of the float transmission pieces to enable the float transmission piece to rotate, the float transmission piece pulls the bending control part to rotate through the wound flexible inhaul cable, the rotation adjusting mechanisms generate reverse rotation force, and the rotation adjusting mechanisms at the two ends of the two float transmission pieces cooperate to form balance force on the bending control part. The bending control part can be stably kept at a specific position. The transmission mode that the two float transmission parts are matched with the flexible inhaul cable is adopted, a traditional complex metal chain or inhaul cable chain structure is replaced, and the number of parts and assembly procedures are reduced.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a fish float transmission structure for the operating part of a disposable electronic gastrointestinal endoscope. Background Technology

[0002] In the field of medical device technology, the bending control function of the operating part of electronic gastrointestinal endoscopes is the key to achieving precise diagnosis and treatment. The performance of its transmission structure directly affects the operating accuracy, stability and service life of the endoscope.

[0003] Currently, both reusable and disposable electronic gastroscopes and colonoscopes rely heavily on traditional metal chain or cable chain transmission mechanisms for bending control of their operating parts. This type of structure has several limitations in practical applications: Traditional chain drives require multiple sets of rigid connecting parts to transmit force, which is complex and requires extremely high machining precision, resulting in high assembly difficulty. They are especially unsuitable for disposable products with strict requirements on cost and production efficiency. During transmission, mechanical friction between chain components can easily lead to wear and fatigue failure, which not only reduces transmission reliability but may also cause lag in bending control response due to component loosening, affecting the accuracy of endoscope angle adjustment. The existing structure lacks an effective force balance mechanism. When the bending control part is adjusted to a specific angle, it is difficult to maintain the position stably. It is prone to displacement due to slight external vibrations or operational inertia, which increases the risk of diagnostic and treatment operations. Therefore, developing a transmission structure that is simple in structure, highly efficient in transmission, can stably maintain the bending angle, and is suitable for single-use applications has become an important direction for solving the defects of existing technologies and improving the operational performance of electronic gastrointestinal endoscopes. Summary of the Invention

[0004] The present invention aims to solve the above-mentioned defects and provides a float transmission structure for the operating part of a disposable electronic gastrointestinal endoscope.

[0005] In order to overcome the defects in the background technology, the technical solution adopted by the present invention to solve its technical problem is: a fish float transmission structure for the operating part of a disposable electronic gastrointestinal endoscope, including two fish float transmission components, the two ends of the fish float transmission components are respectively rotatably connected to the rotation adjustment mechanism, and each fish float transmission component is respectively wound with a flexible cable, one end of the flexible cable is fixedly connected to the fish float transmission component, and the other end is respectively connected to the two ends of the bending control part. When an external force is applied to one of the float drive components to make it rotate, the float drive component will pull the bending control part to rotate accordingly through the flexible cable, thereby changing the endoscope angle. The rotation adjustment mechanism at both ends of the float drive component will immediately generate a reverse rotation force. The rotation adjustment mechanisms at both ends of the two float transmission components work together to form a balancing force on the bending control section, so that the bending control section can be stably maintained in a specific position.

[0006] Further improvements include the use of medical-grade plastic polymers or carbon fiber reinforced materials for the fish float transmission component.

[0007] Further improvements include using high-strength flexible metal wire or coated Kevlar fiber cable for the flexible cable.

[0008] Further improvements include providing a tension adjustment unit on the flexible cable to adjust the tension of the flexible cable.

[0009] Further improvements include the rotary adjustment mechanism comprising a fixed plate and a pin that radially penetrates the end of the float transmission component. The central axis of the fixed plate is coaxially rotatably connected to the end of the float transmission component. An arc-shaped groove is formed on the fixed plate with the central axis of the float transmission component as the center. A spring pin is slidably arranged in the arc-shaped groove, and a thrust spring for pushing the spring pin is provided in the arc-shaped groove.

[0010] Further improvements include that the outer ends of the two fishing float transmission components are coaxially connected to the rotating shaft, and a knob is connected to the free end of the rotating shaft.

[0011] The beneficial effects of this invention are as follows: This design uses two float-driven components in conjunction with a flexible cable to replace the traditional complex metal chain or cable chain structure, reducing the number of parts and assembly steps, lowering the processing precision requirements, and making it more suitable for the production needs of disposable medical devices. The rotation adjustment mechanism at both ends of the two float-driven components has a rotational force on the float-driven components, and when working together, it can form a balancing force on the bending control part, ensuring that it is stably maintained in a specific position, avoiding angular deviation due to external force or inertia, and improving the stability and safety of diagnosis and treatment operations. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is the front view of the present invention; Figure 2 This is a front view of the rotary adjustment mechanism in this invention; Figure 3 This is a front view of the fish float transmission component in this invention; In the diagram, 1-fish float transmission component, 2-rotation adjustment mechanism, 3-knob, 4-rotation shaft, 5-flexible cable, 6-tension adjustment unit, 7-bending control unit; 201-Fixing plate, 202-Spring pin, 203-Arc groove, 204-Thrust spring, 205-Pulley pin. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0015] refer to Figure 1 and Figure 3 A float transmission structure for the operating section of a disposable electronic gastrointestinal endoscope includes two float transmission components 1. Each float transmission component 1 is rotatably connected at both ends to a rotation adjustment mechanism 2. Each float transmission component 1 is wound with a flexible cable 5, one end of which is fixedly connected to the float transmission component 1, and the other end is connected to both ends of a bending control unit 7. This connection method allows for precise control of the rotation angle of the bending control unit 7, thereby enabling flexible adjustment of the endoscope angle. Notably, both the rotation adjustment mechanism 2 and the bending control unit 7 are integrated within the operating section of the gastrointestinal endoscope, ensuring the overall structural compactness.

[0016] During operation, when an external force is applied to one of the float drive components 1 to make it rotate, the float drive component 1 will pull the bending control part 7 to rotate accordingly via the flexible cable 5, thereby changing the endoscope angle. At this time, the rotation adjustment mechanism 2 connected to both ends of the float drive component 1 will immediately generate a reverse rotational force, driving the float drive component 1 back to its initial state after the control is completed, preparing it for the next operation. Similarly, when controlling the rotation of another float drive 1, it will drive the bending control part 7 to rotate in another direction through the corresponding flexible cable 5, and the rotation adjustment mechanism 2 at both ends of the float drive 1 will also play the same role, resetting it to the initial state after the operation is completed. More importantly, the rotation adjustment mechanisms 2 at both ends of the two fish float transmission components 1 work together to balance the forces they generate, ensuring that the bending control part 7 can be stably maintained in a specific position, thus guaranteeing the accuracy and reliability of the gastrointestinal endoscopy operation.

[0017] In a specific embodiment, the fish float transmission component 1 is made of medical-grade plastic polymer or carbon fiber reinforced material.

[0018] In a specific embodiment, the flexible cable 5 is made of high-strength flexible metal wire or coated Kevlar fiber cable, which has good flexibility and fatigue life.

[0019] In a specific embodiment, the flexible cable 5 is provided with a tension adjustment unit 6 for adjusting the tension of the flexible cable 5, wherein the tension adjustment unit 6 is installed inside the operating part.

[0020] For specific embodiments, please refer to Figure 2 The rotary adjustment mechanism 2 includes a fixed plate 201 and a pin 205 that radially penetrates the end of the float transmission component 1. The central axis of the fixed plate 201 is rotatably connected to the end of the float transmission component 1. An arc-shaped groove 203 is formed on the fixed plate 201 with the central axis of the float transmission component 1 as the center. A spring pin 202 is slidably arranged in the arc-shaped groove 203. A thrust spring 204 for pushing the spring pin 202 is provided in the arc-shaped groove 203. When the float transmission component 1 rotates, the pin 205 will push the spring pin 202 to move in the arc-shaped groove 203 and compress the thrust spring 204. At this time, the thrust spring 204 will generate a rotational force on the pin 205, causing the pin 205 to return to its initial state.

[0021] In a specific embodiment, the outer ends of the two float transmission components 1 are coaxially connected to the rotating shaft 4, and a knob 3 is connected to the free end of the rotating shaft 4. During operation, the rotating shaft 4 and the float transmission component 1 can be directly driven to rotate synchronously by rotating the knob 3, thereby precisely controlling the rotation angle of the float transmission component 1, and finally achieving precise adjustment of the rotation angle of the bending control part 7, so as to meet the angle control requirements under different working conditions.

[0022] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A float transmission structure for the operating part of a disposable electronic gastrointestinal endoscope, characterized in that, It includes two float transmission components (1), the two ends of which are rotatably connected to the rotation adjustment mechanism (2). Each float transmission component (1) is also wound with a flexible cable (5), one end of which is fixedly connected to the float transmission component (1), and the other end is connected to both ends of the bending control part (7). When an external force is applied to one of the float transmission components (1) to make it rotate, the float transmission component (1) will pull the bending control part (7) to rotate accordingly through the flexible cable (5) wrapped around it, thereby changing the endoscope angle. The rotation adjustment mechanism (2) at both ends of the float transmission component (1) will immediately generate a reverse rotation force. The rotation adjustment mechanisms (2) at both ends of the two float transmission components (1) work together to form a balancing force on the bending control part (7), so that the bending control part (7) can be stably maintained in a specific position.

2. The float transmission structure of the operating part of a disposable electronic gastrointestinal endoscope as described in claim 1, characterized in that: The fish float transmission component (1) is made of medical plastic polymer or carbon fiber reinforced material.

3. The float transmission structure of the disposable electronic gastrointestinal endoscope operating section as described in claim 1, characterized in that: The flexible cable (5) is made of high-strength flexible metal wire or coated Kevlar fiber cable.

4. The float transmission structure of the operating part of a disposable electronic gastrointestinal endoscope as described in claim 1, characterized in that: The flexible cable (5) is provided with a tension adjustment unit (6) for adjusting the tension of the flexible cable (5).

5. The float transmission structure of the operating part of a disposable electronic gastrointestinal endoscope as described in claim 1, characterized in that: The rotary adjustment mechanism (2) includes a fixed plate (201) and a pin (205) that radially penetrates the end of the float transmission component (1). The central axis of the fixed plate (201) is coaxially rotatably connected to the end of the float transmission component (1). An arc-shaped groove (203) is opened on the fixed plate (201) with the central axis of the float transmission component (1) as the center. A spring pin (202) is slidably arranged in the arc-shaped groove (203). A thrust spring (204) for pushing the spring pin (202) is provided in the arc-shaped groove (203).

6. The float transmission structure of the operating part of a disposable electronic gastrointestinal endoscope as described in claim 1, characterized in that: The two fishing float transmission components (1) are coaxially connected to the rotating shaft (4) at their outer ends, and a knob (3) is connected to the free end of the rotating shaft (4).

Images