Anti-releasing endoscope snake bone

By designing an anti-disengagement mechanism on the endoscope's serpentine frame and employing a two-way limiting mechanism using limiting grooves and elastic elements, the problem of serpentine frame disengagement and breakage is solved. This achieves structural stability and durability under complex external forces, ensuring the safe and efficient use of the endoscope.

CN121784953APending Publication Date: 2026-04-03GUANGZHOU WEIYI MEDICAL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-16
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing endoscopic serpentine frames are prone to disengagement and breakage during use, especially in the case of inlaid frames, which are prone to breakage in the vertical direction, affecting their stability and durability.

Method used

The design incorporates an anti-disengagement mechanism, including a two-way limiting mechanism of limiting grooves and elastic elements. Through the overlapping design of the limiting male and limiting female buckles, the serpentine frame maintains stability in multiple directions, preventing disengagement and breakage.

Benefits of technology

Under complex external force environments, the endoscopic snake bone can maintain its structural integrity, avoid disengagement and breakage, and ensure the continuous, safe and efficient use of the endoscope.

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Abstract

The invention relates to the technical field of endoscope snake bones and discloses an anti-tripping endoscope snake bone which comprises a first snake bone section, an anti-tripping mechanism is arranged on the surface of the first snake bone section, and a second snake bone section is arranged on the side, away from the first snake bone section, of the anti-tripping mechanism. According to the anti-releasing endoscope snake bone, due to the bidirectional limiting design, the snake bone is endowed with excellent stability and reliability. In an actual use scene, the snake bone of the endoscope often needs to bear various external forces. When the industrial endoscope is used for detecting various complex mechanical structures or the interiors of pipelines, the industrial endoscope can face various external force factors such as impact of fluid in the pipelines and collision of mechanical parts. However, benefited from a bidirectional limiting mechanism, even under the interference of complex and uncontrollable external force, the snake bone can still stably keep the structural integrity, and the dangerous conditions of tripping and breakage are not easy to occur, so that a solid foundation is laid for the continuous, safe and efficient use of the endoscope.
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Description

Technical Field

[0001] This invention relates to the field of endoscopic snake bone technology, specifically to an endoscopic snake bone with anti-dislodgement mechanism. Background Technology

[0002] The endoscopic skeletal frame is a key component of an endoscope; it's a flexible, snake-like structure. It typically consists of multiple small joints or segments interconnected by special mechanisms, allowing the frame to bend and twist in multiple directions. Visually, it's a slender, flexible tubular structure, usually made of metal such as stainless steel to provide sufficient strength and durability to withstand repeated bending operations.

[0003] There are generally two methods for cutting disposable endoscopic snake bones: spring-loaded (one-piece) and inlaid (ring-type or fist-type). However, these two types of snake bones have the following disadvantages:

[0004] Spring-loaded snake bone:

[0005] It has high requirements for materials (it is prone to fatigue and deformation);

[0006] It has a large bending force, which can easily cause fatigue for doctors during use, resulting in a poor user experience.

[0007] Inlaid snake bone: It comes in single-buckle and double-buckle forms. Regardless of the type, it is easy to come loose and break in the direction perpendicular to the bending direction. Summary of the Invention

[0008] The purpose of this invention is to provide an anti-dislodgement endoscope serpentine to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, the present invention provides the following technical solution: an anti-disengagement endoscopic serpentine, comprising a first serpentine segment, an anti-disengagement mechanism being provided on the surface of the first serpentine segment, a second serpentine segment being provided on the side of the anti-disengagement mechanism opposite to the first serpentine segment, and a probing mechanism being provided on one side of the first serpentine segment.

[0010] The anti-disengagement mechanism includes a head section, which is fixedly connected to the surface of a first snake-bone section. The first snake-bone section and a second snake-bone section are fitted together. A screw-in protrusion is provided inside the second snake-bone section. A bending shaft is rotatably connected inside the screw-in protrusion. A connector is fixedly connected to the surface of the bending shaft. The connector is fixedly connected to the surface of the first snake-bone section. A groove is provided inside the second snake-bone section. A snap-fit ​​component is inserted into the groove. The snap-fit ​​component is fixedly connected to the surface of the first snake-bone section. An end section is fixedly connected to the surface of the second snake-bone section.

[0011] Preferably, both the first and second snake joint surfaces have limiting grooves, and an elastic element is fixedly connected in the limiting groove. The elastic element has a wave-shaped design. Both the first and second snake joint surfaces have arc-shaped grooves, which are distributed in an evenly spaced ring.

[0012] Preferably, a limiting female buckle is provided inside the second snake bone segment, and a limiting male buckle is engaged inside the limiting female buckle, and the limiting male buckle is fixedly connected to the surface of the first snake bone segment.

[0013] Preferably, the male limiting buckle of the second snake bone segment and the female limiting buckle of the snake bone segment overlap each other, and the bending direction is concentric circle, so the snake bone has limiting in both directions.

[0014] Preferably, the first and second serpentine segments are bent along the bending axis, and one side of the male limiting buckle of the first serpentine segment and the female limiting buckle of the serpentine segment overlaps to provide a limiting function in the non-bending direction.

[0015] Compared with the prior art, the present invention provides an anti-dislodgement endoscope snake bone, which has the following beneficial effects:

[0016] 1. This anti-disengagement endoscope skeleton, through its designed anti-disengagement mechanism, possesses exceptional stability and reliability due to its bidirectional limiting design. In practical applications, endoscope skeletons often need to withstand various external forces. For example, when medical endoscopes are inserted into complex cavities of the human body for examination or treatment, they may encounter natural resistance from human tissues, compression from organ peristalsis, or unintentional additional forces applied by the doctor during operation. When industrial endoscopes are used to probe the interiors of various complex mechanical structures or pipelines, they face numerous external forces such as fluid impact within pipelines and collisions with mechanical components. However, thanks to the bidirectional limiting mechanism, even under these complex and uncontrollable external forces, the skeleton can still maintain its structural integrity and will not easily disengage or break, thus laying a solid foundation for the continuous, safe, and efficient use of the endoscope. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort:

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the anti-disengagement mechanism of the present invention;

[0020] Figure 3 This is a schematic diagram of a portion of the anti-disengagement mechanism of the present invention;

[0021] Figure 4 This is a schematic diagram showing the partial structure separation of the anti-disengagement mechanism of the present invention;

[0022] Figure 5 This is a schematic diagram of the snake bone in a bent state;

[0023] Figure 6 This is a schematic diagram of the snake bone in its non-bent state.

[0024] In the diagram: 1. First snake joint; 2. Anti-disengagement mechanism; 3. Second snake joint; 21. Arc groove; 22. Elastic element; 23. First end section; 24. Snap-fit ​​element; 25. Groove; 26. Bending shaft; 27. Connector; 28. End section; 29. ​​Limiting male buckle; 201. Limiting female buckle. Detailed Implementation

[0025] 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.

[0026] This invention provides a technical solution:

[0027] Combination Figures 1 to 2 -6, an anti-disengagement endoscopic serpentine, comprising a first serpentine segment 1, characterized in that: an anti-disengagement mechanism 2 is provided on the surface of the first serpentine segment 1, a second serpentine segment 3 is provided on the side of the anti-disengagement mechanism 2 opposite to the first serpentine segment 1, and a probing mechanism 3 is provided on one side of the first serpentine segment 1.

[0028] The anti-disengagement mechanism 2 includes a head section 23, which is fixedly connected to the surface of the first snake joint 1. The first snake joint 1 and the second snake joint 3 are fitted together. A screw-in protrusion is provided in the second snake joint 3. A bending shaft 26 is rotatably connected in the screw-in protrusion. A connector 27 is fixedly connected to the surface of the bending shaft 26. The connector 27 is fixedly connected to the surface of the first snake joint 1. A groove 25 is provided in the second snake joint 3. A snap-fit ​​component 23 is inserted into the groove 25. The snap-fit ​​component 23 is fixedly connected to the surface of the first snake joint 1. An end section 28 is fixedly connected to the surface of the second snake joint 3.

[0029] Furthermore, limiting grooves are provided on the surfaces of the first snake joint 1 and the second snake joint 3, and elastic members 22 are fixedly connected in the limiting grooves. The elastic members 22 are designed in a wave shape. Arc-shaped grooves 21 are provided on the surfaces of the first snake joint 1 and the second snake joint 3, and the arc-shaped grooves 21 are distributed in an evenly spaced ring.

[0030] Furthermore, a limiting female buckle 201 is provided within the second snake segment 3, and a limiting male buckle 29 is engaged within the limiting female buckle 201. The limiting male buckle 29 is fixedly connected to the surface of the first snake segment 1. The limiting male buckle 29 of the second snake segment 3 and the limiting female buckle 201 of the snake segment overlap each other, and the bending direction is concentric. Therefore, the snake segment has limiting in both directions. The first snake segment 1 and the second snake segment 3 bend along the bending axis 26. The limiting male buckle 29 of the first snake segment 1 and the limiting female buckle 201 of the snake segment overlap on one side to provide limiting in the non-bending direction. Due to this bidirectional limiting design, the snake segment is endowed with excellent stability and reliability. In actual use scenarios, the endoscopic snake segment often needs to withstand various external forces. For example, when medical endoscopes are used to examine or treat complex cavities within the human body, they may encounter natural resistance from tissues, pressure from organ peristalsis, or unintentional additional forces applied by the doctor during the procedure. Similarly, when industrial endoscopes are used to probe the interiors of complex mechanical structures or pipes, they face numerous external forces such as fluid impacts within the pipes and collisions with mechanical components. However, thanks to its bidirectional limiting mechanism, even under these complex and uncontrollable external forces, the snake skeleton can maintain its structural integrity and will not easily detach or break, thus laying a solid foundation for the continuous, safe, and efficient use of the endoscope.

[0031] In actual operation, when the endoscope snake bone is inserted into the patient's stomach, in the natural unbent state of the snake bone, the limiting male buckle 29 of the first snake bone segment 1 and the limiting female buckle 201 of the snake bone segment overlap each other (symmetric on both sides) to play a limiting role in the non-bending direction. The bending direction is a concentric circle, so the snake bone has a limit in both directions, and the buckle will not break under a certain force.

[0032] When the first snake joint 1 and the second snake joint 3 are bent along the bending axis 26 (concentric circle), the male limiting buckle 29 of the snake joint and the female limiting buckle 201 of the first snake joint 1 overlap on one side to play a limiting role in the non-bending direction (the same applies to the reverse bending). The bending direction is concentric circle, so the snake joint has limiting in both directions, and the buckle will not break under a certain force.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An anti-dislodgement endoscopic serpentine, comprising a first serpentine segment (1), characterized in that: The surface of the first snake bone segment (1) is provided with an anti-disengagement mechanism (2), and a second snake bone segment (3) is provided on the side of the anti-disengagement mechanism (2) away from the first snake bone segment (1); The anti-disengagement mechanism (2) includes a head section (23), which is fixedly connected to the surface of the first snake bone section (1). The first snake bone section (1) and the second snake bone section (3) are fitted together. A screw-in protrusion is provided in the second snake bone section (3). A bending shaft (26) is rotatably connected in the screw-in protrusion. A connector (27) is fixedly connected to the surface of the bending shaft (26). The connector (27) is fixedly connected to the surface of the first snake bone section (1). A groove (25) is provided in the second snake bone section (3). A snap-fit ​​component (23) is inserted into the groove (25). The snap-fit ​​component (23) is fixedly connected to the surface of the first snake bone section (1). An end section (28) is fixedly connected to the surface of the second snake bone section (3).

2. The anti-dislodgement endoscopic snake bone according to claim 1, characterized in that: Limiting grooves are provided on the surface of the first snake joint (1) and the surface of the second snake joint (3). An elastic element (22) is fixedly connected in the limiting groove. The elastic element (22) is designed in a wave shape. Arc grooves (21) are provided on the surface of the first snake joint (1) and the surface of the second snake joint (3). The arc grooves (21) are distributed in an evenly spaced ring.

3. The anti-dislodgement endoscope snake bone according to claim 1, characterized in that: The second snake joint (3) is provided with a limiting female buckle (201), and a limiting male buckle (29) is engaged in the limiting female buckle (201). The limiting male buckle (29) is fixedly connected to the surface of the first snake joint (1).

4. The anti-dislodgement endoscope snake bone according to claim 3, characterized in that: The male limiting buckle (29) of the second snake bone segment (3) and the female limiting buckle (201) of the snake bone segment overlap each other, and the bending direction is concentric circle, so the snake bone has a limit in both directions.

5. The anti-dislodgement endoscope snake bone according to claim 3, characterized in that: The first snake segment (1) and the second snake segment (3) bend along the bending axis (26). The male limiting buckle (29) of the first snake segment (1) and the female limiting buckle (201) of the snake segment overlap on one side to provide a limiting function in the non-bending direction.