Endoscope bending control self-locking mechanism and endoscope

Abstract

The utility model provides an endoscope bending control self-locking mechanism which is arranged on a shell of an endoscope and used for adjusting the bending direction of a bending section of the endoscope, a containing cavity is formed in the shell, the endoscope bending control self-locking mechanism comprises a rotating part, a damping part, an operating rod and a pull wire, the rotating part is rotatably installed in the containing cavity, and the damping part is installed in the containing cavity. The damping part is located in the containing cavity and abuts against the position between the rotating part and the bottom wall of the containing cavity, the operating rod is located outside the shell and extends into the shell from the outside of the shell to be connected with the rotating part, at least one pull wire is wound around the rotating part, the rotating part is connected with the bent section through the pull wire, and the damping part is made of hard rubber. The surface part of the damping piece is provided with the soft rubber material through secondary injection molding, so that the damping piece can have hard supporting force under the condition that the damping piece has elasticity, and the damping piece is not prone to deformation in the working process or the assembling process so as to prevent the phenomenon of jamming.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to an endoscope bending control self-locking mechanism and an endoscope. Background Art

[0002] Endoscopes are mainly inserted into the body through natural orifices or small surgical incisions. They have optical lenses, light sources, mechanical devices, etc. Endoscopes can be used to see lesions that cannot be seen by X-rays, so they are very useful for medical staff. For example, with the help of an endoscope, medical staff can observe ulcers or tumors in the stomach and develop the best treatment plan accordingly.

[0003] At present, the damping parts in the bending and maintaining mechanism of the endoscope are usually made of high molecular polymer elastomer materials, such as polyurethane materials, silicone rubber, fluororubber, etc. Since the damping parts are made of polymer elastomer materials as a whole, they are easily elastically deformed during the assembly or operation of the damping parts, and jamming may occur, resulting in malfunction of the bending and maintaining mechanism of the endoscope, and the practicality needs to be improved.

[0004] The prior art may refer to a mechanism for maintaining an endoscope bending state and an endoscope disclosed in Chinese utility model patent publication number CN219699885U, in which a damping member is made of a polymer elastomer material, such as a polyurethane material, silicone rubber, fluororubber, etc. The damping member is made of a polymer elastomer material as a whole, so that it is easy to deform elastically and cause jamming. Utility Model Content

[0005] The utility model aims to provide an endoscope bending control self-locking mechanism and an endoscope, so as to solve the problem raised in the above-mentioned background technology that since the damping member is made of a polymer elastomer material as a whole, it is easy to elastically deform during the assembly or operation of the damping member, which may cause jamming and lead to malfunction of the endoscope bending holding mechanism, and the practicality needs to be improved.

[0006] According to the first aspect of the utility model, the utility model provides an endoscope bending control self-locking mechanism, which is arranged in the shell of the endoscope and is used to adjust the bending direction of the bending section of the endoscope. A accommodating cavity is arranged inside the shell. The endoscope bending control self-locking mechanism includes a rotating part, a damping part, an operating rod and a traction line. The rotating part is rotatably installed in the accommodating cavity. The damping part is located in the accommodating cavity and abuts between the rotating part and the bottom wall of the accommodating cavity. The operating rod is located outside the shell. The operating rod extends from the outside of the shell to the inside of the shell and is connected to the rotating part. At least one traction line is wound around the rotating part, and the rotating part is connected to the bending section through the traction line. The damping part is made of hard rubber material, and the surface of the damping part is secondary injection molded with soft rubber material.

[0007] In some embodiments, two fixing members are installed on the rotating member, and the rotating member is fixedly connected to the two traction lines through the two fixing members, and the rotating member is fixedly connected to two sides of the curved section through the two traction lines.

[0008] In some embodiments, the damping member is configured in a ring shape, the bottom of the damping member abuts against the bottom wall of the accommodating cavity, and the top of the damping member abuts against the rotating member.

[0009] In some embodiments, the surface of the operating rod is provided with anti-slip grooves.

[0010] According to the second aspect of the utility model, the utility model also provides an endoscope, including an operating part and an insertion part, the operating part includes a shell and the above-mentioned endoscope bending control self-locking mechanism; the insertion part includes an insertion tube, a bending section and a tip end, one end of the bending section is connected to one end of the insertion tube, the other end of the bending section is connected to the tip end, the other end of the insertion tube is connected to the shell, the bending section is composed of a plurality of snake bone structures hinged in sequence, and the tip end is connected to a miniature camera.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the utility model, the damping member is made of hard rubber material, and the surface of the damping member is secondary-injected with soft rubber material, so that the damping member can have elasticity and hard supporting force, so that the damping member is not easily deformed during operation or assembly to prevent jamming. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0014] Figure 1 A schematic diagram of the three-dimensional structure of the endoscope provided by the utility model;

[0015] Figure 2 A schematic diagram of the structure of the endoscope provided by the utility model with the upper cover removed;

[0016] Figure 3 The utility model is a schematic cross-sectional structure diagram of the endoscope bending control self-locking mechanism provided by the utility model.

[0017] Description of reference numerals:

[0018] 100, endoscope; 10, operating part; 101, shell; 1011, accommodating chamber; 102, rotating part; 1021, damping part; 1022, fixing part; 1023, traction line; 1024, operating rod; 10241, anti-slip groove; 20, insertion part; 201, insertion tube; 202, bending section; 203, front end; 204, miniature camera. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0021] See also Figures 1 to 3 As shown, according to the first aspect of the utility model, the utility model provides an endoscope bending control self-locking mechanism, which is arranged in the housing 101 of the endoscope 100 and is used to adjust the bending direction of the bending section 202 of the endoscope 100. The housing 101 is provided with a receiving cavity 1011 inside. The endoscope bending control self-locking mechanism includes a rotating member 102, a damping member 1021, an operating rod 1024 and a traction line 1023. The rotating member 102 can be rotatably installed in the receiving cavity 1011, and the damping member 1021 can be rotatably installed in the receiving cavity 1011. Located in the accommodating cavity 1011 and abutting between the rotating member 102 and the bottom wall of the accommodating cavity 1011, the operating rod 1024 is located outside the shell 101, and the operating rod 1024 extends from the outside of the shell 101 to the inside of the shell 101 and is connected to the rotating member 102. At least one traction line 1023 is wound around the rotating member 102, and the rotating member 102 is connected to the bending section 202 through the traction line 1023. The damping member 1021 is made of hard rubber material, and the surface of the damping member 1021 is secondary injection molded with soft rubber material.

[0022] In the endoscope bending control self-locking mechanism provided in this embodiment, medical staff can manually rotate the operating rod 1024 to drive the rotating member 102 to rotate, thereby providing a driving force for the rotation of the rotating member 102. During the rotation of the rotating member 102, the traction line 1023 is driven to pull the bending section 202, and the bending section 202 is bent during the pulling process of the traction line 1023. The damping member 1021 abutting between the rotating member 102 and the bottom wall of the accommodating cavity 1011 can generate friction between the rotating member 102 and the bottom wall of the accommodating cavity 1011. During the rotation of the rotating member 102, the damping member 1021 generates dynamic friction between the rotating member 102 and the bottom wall of the accommodating cavity 1011. During this process, the rotating member 102 can overcome the dynamic friction to keep rotating. When the rotating member 102 rotates to any position, the damping member 1021 generates static friction between the rotating member 102 and the bottom wall of the accommodating chamber 1011, and the bending section 202 bends. The bending section 202 generates a pulling force on the traction line 1023, and the pulling force is smaller than the static friction force, so that the rotating member 102 will not rotate relative to the housing 101, and the bending section 202 can be kept in the bent state. Under the action of the damping member 1021, the bending section 202 can self-lock to maintain the bending angle. The damping member 1021 is made of hard rubber material, and the surface of the damping member 1021 is secondary-molded with soft rubber material, so that the damping member 1021 can meet the elastic condition and also have a hard supporting force, so that the damping member 1021 is not easily deformed during the working process or assembly process to prevent the occurrence of the phenomenon of jamming.

[0023] The hard plastic material of the damping member 1021 may be plastic ABS, for example, and the soft plastic material of the secondary injection molding of the surface of the damping member 1021 may be soft plastic TPU, for example.

[0024] In some embodiments, two fixing members 1022 are installed on the rotating member 102, and the rotating member 102 is fixedly connected to two traction lines 1023 through the two fixing members 1022, and the rotating member 102 is fixedly connected to both sides of the curved section 202 through the two traction lines 1023. When the rotating member 102 rotates clockwise, it drives one traction line 1023 to pull the curved section 202 to bend to one side, and when the rotating member 102 rotates counterclockwise, it drives the other traction line 1023 to pull the curved section 202 to bend to the other side.

[0025] In some embodiments, the damping member 1021 is configured in an annular shape, the bottom of the damping member 1021 abuts against the bottom wall of the accommodating chamber 1011 , and the top of the damping member 1021 abuts against the rotating member 102 , so that the damping member 1021 can effectively abut against the rotating member 102 and the bottom wall of the accommodating chamber 1011 .

[0026] In some embodiments, the surface of the operating rod 1024 is provided with anti-skid grooves 10241. The anti-skid grooves 10241 on the surface of the operating rod 1024 are used to increase friction on the hands of medical staff when they hold the operating rod 1024, so that the medical staff can easily and stably control the operating rod 1024.

[0027] According to the second aspect of the utility model, the utility model also provides an endoscope 100, including an operating part 10 and an insertion part 20, the operating part 10 includes a shell 101 and the above-mentioned endoscope bending control self-locking mechanism; the insertion part 20 includes an insertion tube 201, a bending section 202 and a front end 203, one end of the bending section 202 is connected to one end of the insertion tube 201, the other end of the bending section 202 is connected to the front end 203, the other end of the insertion tube 201 is connected to the shell 101, the bending section 202 is composed of a plurality of snake bone structures hinged in sequence, and the front end 203 is connected to a miniature camera 204. When the endoscope 100 is in use, the insertion portion 20 can be inserted into a patient's human body orifice such as the oral cavity, nasal cavity, external auditory canal or minimally invasive incision, and then the bending direction of the bending section 202 is controlled by the endoscope bending control self-locking mechanism. When the bending section 202 changes its bending direction, it drives the micro camera 204 to change the shooting direction. The micro camera 204 is used to capture images inside the human body orifice, thereby assisting medical staff in completing disease examinations of patients.

[0028] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An endoscope bending control self-locking mechanism, arranged in the housing of the endoscope, for adjusting the bending direction of the bending section of the endoscope, wherein a receiving cavity is arranged inside the housing, characterized in that: The endoscope bending control self-locking mechanism includes a rotating part, a damping part, an operating rod and a traction line. The rotating part can be rotatably installed in the accommodating cavity. The damping part is located in the accommodating cavity and abuts between the rotating part and the bottom wall of the accommodating cavity. The operating rod is located outside the shell. The operating rod extends from the outside of the shell to the inside of the shell and is connected to the rotating part. At least one traction line is wound around the rotating part. The rotating part is connected to the bending section through the traction line. The damping part is made of hard rubber material, and the surface of the damping part is secondary injection molded with soft rubber material.

2. The endoscope bending control self-locking mechanism according to claim 1, characterized in that: Two fixing members are installed on the rotating member, and the rotating member is fixedly connected to the two pulling wires through the two fixing members, and the rotating member is fixedly connected to the two sides of the bending section through the two pulling wires.

3. The endoscope bending control self-locking mechanism according to claim 1, characterized in that: The damping member is arranged in a ring shape, the bottom of the damping member abuts against the bottom wall of the accommodating cavity, and the top of the damping member abuts against the rotating member.

4. The endoscope bending control self-locking mechanism according to claim 1, characterized in that: The surface of the operating rod is provided with anti-skid concave-convex patterns.

5. An endoscope, characterized in that: It comprises an operating part and an insertion part, wherein the operating part comprises a shell and the endoscope bending control self-locking mechanism as described in any one of claims 1 to 4; the insertion part comprises an insertion tube, a bending section and a tip end, one end of the bending section is connected to one end of the insertion tube, the other end of the bending section is connected to the tip end, and the other end of the insertion tube is connected to the shell.

6. The endoscope according to claim 5, characterized in that The curved section is composed of a plurality of snake-bone structures hinged in sequence.

7. The endoscope according to claim 5, characterized in that The front end is equipped with a micro camera.

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