Endoscope

Abstract

The application discloses an endoscope. The endoscope comprises a shell part, a self-locking steering part and an insertion part. The shell part is provided with a mounting cavity, and the shell part is provided with a first through hole and a second through hole; the self-locking steering part comprises a rotating assembly, a locking assembly and a rocker, the rotating assembly is rotatably installed in the mounting cavity, the rocker is fixedly connected with the rotating assembly and passes through the first through hole to the outside of the shell part, and the locking assembly is arranged between the rotating assembly and the inner wall surface of the mounting cavity; the insertion part comprises an insertion connecting pipe and a plurality of pull wires, the insertion connecting pipe comprises a first end and a second end which are oppositely arranged, the first end of the insertion connecting pipe is fixedly connected with the second through hole, and the second end of the insertion connecting pipe is provided with a flexible pipe section; the pull wires are used for bending the flexible pipe section in at least two different directions when the rotating assembly rotates. The application can solve the problems that the endoscope in the prior art is inconvenient to operate and the visual angle is limited.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to an endoscope. BACKGROUND

[0002] An endoscope is a device that combines traditional optics, human engineering, precision machinery, modern electronics, mathematics, software, and other technologies into one. An endoscope can be inserted into the stomach through the mouth or other natural orifices. By using an endoscope, doctors can see lesions that X-rays cannot display, so it is very useful for doctors. For example, doctors can observe ulcers or tumors in the stomach with the help of an endoscope, and accordingly develop the best treatment plan.

[0003] Most multi-directional endoscopes on the market are two-directional or four-directional endoscopes, and doctors need to press the handle of the endoscope for a long time to observe the lesion site of the patient. When in use, the operating doctor is prone to fatigue, and the visual angle of the endoscope is limited, which cannot fully observe the detailed lesions inside the human body. SUMMARY

[0004] The main purpose of the present application is to provide an endoscope to at least solve the problem of inconvenient operation and limited visual angle of the endoscope in the prior art.

[0005] According to an aspect of an embodiment of the present application, an endoscope is provided, comprising:

[0006] A housing component, which forms a mounting cavity, and a first through hole and a second through hole are arranged on the housing component and communicate with the mounting cavity;

[0007] A self-locking steering component, which comprises a rotating assembly, a locking assembly, and a rocker, the rotating assembly is rotatably installed in the mounting cavity, the rocker is fixedly connected with the rotating assembly and penetrates from the first through hole to the outside of the housing component, the rocker drives the rotating assembly to rotate in the mounting cavity under the action of external force, and the locking assembly is arranged between the rotating assembly and the inner wall surface of the mounting cavity to lock the rotating assembly at the current position when the external force applied to the rocker is removed;

[0008] An insertion component, which comprises an insertion connecting tube and a plurality of pull wires, the insertion connecting tube comprises a first end and a second end arranged oppositely, the first end of the insertion connecting tube is fixedly connected to the second through hole, and the second end of the insertion connecting tube is provided with a flexible tube segment; one end of the pull wire is connected to the flexible tube segment, and the other end is connected to the rotating assembly to drive the flexible tube segment to bend in at least two different directions when the rotating assembly rotates.

[0009] Further, the locking assembly comprises:

[0010] a first damping part arranged on an inner wall surface of the mounting cavity;

[0011] a second damping part arranged on an outer surface of the rotating assembly and adapted with the first damping part for locking the rotating assembly at a current position when the external force applied on the rocker is removed.

[0012] Further, the first damping part comprises an elastic damping ring fixedly arranged on the inner wall surface of the mounting cavity and sleeved on an outer periphery of the rotating assembly, and an inner wall surface of the elastic damping ring is provided with a clamping groove; and / or,

[0013] The second damping part comprises a hard clamping convex arranged on the outer surface of the rotating assembly.

[0014] Further, the rotating assembly comprises a rotating hemisphere, the hard clamping convex is arranged on a spherical surface of the rotating hemisphere, the hard clamping convex is a plurality of, the plurality of hard clamping convexes are arranged in a plurality of rows, each row of the hard clamping convexes comprises at least two hard clamping convexes, and the plurality of rows of hard clamping convexes are arranged on the spherical surface of the rotating hemisphere in a radial manner with the top end of the rotating hemisphere as the center.

[0015] Further, the rotating assembly comprises:

[0016] a ball joint mounted in the mounting cavity;

[0017] a rotating hemisphere rotatably mounted on the ball joint, a surface of the rotating hemisphere away from the ball joint is fixedly connected with the rocker, and the locking assembly is arranged between the rotating hemisphere and the inner wall surface of the mounting cavity.

[0018] Further, the rotating hemisphere comprises:

[0019] a support connecting plate provided with a semispherical groove adapted with the ball joint;

[0020] a semispherical shell surrounding a hollow cavity capable of accommodating the support connecting plate, the semispherical shell is fixedly connected with the support connecting plate, an outer periphery of the semispherical shell is provided with an outer flange, and a plurality of the pull wires are connected on the outer flange.

[0021] Further, an outer periphery of the support connecting plate is provided with a plurality of connecting ear blocks, and the support connecting plate is fixedly connected with the semispherical shell through fasteners penetrating the connecting ear blocks; and / or,

[0022] The semispherical recess is located in the center of the plate surface of the support connecting plate, and a plurality of anti-dropping protrusions are arranged in the circumferential direction of the slot of the semispherical recess, and the plurality of anti-dropping protrusions surround to form a circular ring cavity, and the minimum diameter of the circular ring cavity is smaller than the maximum diameter of the ball joint.

[0023] Further, the self-locking steering component further comprises:

[0024] A locking auxiliary assembly is arranged at the bottom of the ball joint and used for at least applying a toppling force to the ball joint and the rotating semisphere.

[0025] Further, a threaded hole is arranged on the ball joint, and the locking auxiliary assembly comprises:

[0026] A base support plate is fixedly installed in the mounting cavity, and a connecting hole is arranged on the base support plate.

[0027] A guide rod is arranged, and an end of the guide rod is provided with a limiting block, the guide rod is arranged in the connecting hole from the bottom of the base support plate and is perpendicular to the base support plate, the limiting block is stopped at the bottom of the base support plate, at least one end of the guide rod away from the limiting block has a threaded section, and the guide rod is connected with the threaded hole through the threaded section.

[0028] An elastic element is sleeved on the guide rod, and two ends of the elastic element are respectively abutted against the plate surface of the base support plate and the bottom of the ball joint.

[0029] Further, the first through hole comprises a tapered hole section, and the diameter of the tapered hole section gradually increases in the direction away from the mounting cavity; and / or,

[0030] The minimum hole diameter of the first through hole is 0.5 to 0.65 times the diameter of the rotating semisphere.

[0031] Further, the housing component comprises:

[0032] A first housing comprises a first main body and a first extension, a first cavity and the first through hole in communication with the first cavity are arranged on the first main body, and the first extension is connected with the first main body and extends away from the first main body.

[0033] A second housing comprises a second main body and a second extension, a second cavity and the second through hole in communication with the second cavity are arranged on the second main body, and the second extension is connected with the second main body and extends away from the second main body.

[0034] The first shell and the second shell are connected through buckling, the first cavity and the second cavity surround to form the mounting cavity, and the first extension and the second extension surround to form a holding handle.

[0035] Further, the shell component further comprises a conical base connected to the second shell, the conical base is provided with a third through hole communicated with the second through hole, and the cross-sectional area of the conical base gradually decreases in the direction away from the second shell, and the insertion connecting pipe is arranged in the second through hole and the third through hole.

[0036] Compared with the prior art, the technical scheme of the present application has at least the following technical effects:

[0037] When the endoscope of the present application is used for endoscopic examination, the doctor can drive the rotating assembly to rotate in the mounting cavity by applying external force to the rocker. During the rotation of the rotating assembly, the pull wire connected with the flexible pipe section can be driven to move, and the flexible pipe section can be bent in at least two different directions. At this time, the optical elements, illumination elements and the like arranged in the flexible pipe section can detect and irradiate in at least two different directions, thereby enabling more comprehensive observation and detection of the lesion site of the patient. At the same time, during the process of applying external force to the rocker, after the rotating assembly is rotated to the desired position, the doctor can cancel the external force applied to the rocker. At this time, the locking assembly arranged between the rotating assembly and the inner wall surface of the mounting cavity can lock the rotating assembly at the current position, i.e. the position to which the rocker drives the rotating assembly to rotate. At this time, the doctor can carefully detect the lesion site of the patient. During this process, the doctor does not need to press or hold the rocker for a long time, and is not prone to operation fatigue. BRIEF DESCRIPTION OF DRAWINGS

[0038] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0039] Figure 1 A perspective view of the endoscope disclosed in the embodiments of the present application;

[0040] Figure 2 A perspective view of the endoscope disclosed in the embodiments of the present application without the first shell and the second shell;

[0041] Figure 3 A front view of Figure 2 ;

[0042] Figure 4A perspective view of a self-locking steering component of an endoscope according to an embodiment of the present application;

[0043] Figure 5 A partial cross-sectional view of an endoscope according to an embodiment of the present application;

[0044] Figure 6 A perspective view of a first housing according to an embodiment of the present application;

[0045] Figure 7 A perspective view of a second housing according to an embodiment of the present application;

[0046] Figure 8 A perspective view of a first damping part according to an embodiment of the present application;

[0047] Figure 9 A perspective view of a support connecting plate according to an embodiment of the present application;

[0048] Figure 10 A perspective view of a base support plate according to an embodiment of the present application.

[0049] The above drawings include the following reference signs:

[0050] 10, housing component; 11, first housing; 111, first main body; 1111, first cavity; 1112, first through hole; 11121, tapered hole section; 112, first extension; 12, second housing; 121, second main body; 1211, second cavity; 1212, second through hole; 122, second extension; 13, conical base; 131, third through hole; 101, mounting cavity; 20, self-locking steering component; 21, rotating assembly; 211, ball joint; 2111, threaded hole; 212, rotating hemisphere; 2121, support connecting plate; 21211, connecting lug; 21212, anti-disengagement protrusion; 21213, hemispherical groove; 2122, hemispherical housing; 21221, outer flange; 21222, hollow cavity; 22, locking assembly; 221, first damping part; 2211, clamping groove; 222, second damping part; 23, rocker; 24, locking auxiliary assembly; 241, base support plate; 2411, connecting hole; 242, guide rod; 2421, limiting block; 2422, stud section; 243, elastic element; 30, insertion component; 31, insertion connecting tube; 311, flexible tube section; 32, pull wire; 40, fastener; 50, buckle. DETAILED DESCRIPTION

[0051] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0052] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0053] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0054] See Figures 1 to 5 As shown, according to an embodiment of this application, an endoscope is provided, which includes a housing component 10, a self-locking steering component 20, and an insertion component 30.

[0055] The shell part 10 surrounds to form a mounting cavity 101, and the shell part 10 is provided with a first through hole 1112 and a second through hole 1212 which communicate with the mounting cavity 101; the self-locking steering part 20 includes a rotating assembly 21, a locking assembly 22 and a rocker 23, the rotating assembly 21 is rotatably installed in the mounting cavity 101, the rocker 23 is fixedly connected with the rotating assembly 21 and passes through the first through hole 1112 to the outside of the shell part 10, the rocker 23 drives the rotating assembly 21 to rotate in the mounting cavity 101 under the action of external force, and the locking assembly 22 is arranged between the rotating assembly 21 and the inner wall surface of the mounting cavity 101 to lock the rotating assembly 21 at the current position when the external force applied to the rocker 23 is removed; the insertion part 30 includes an insertion connecting pipe 31 and a plurality of pull wires 32, the insertion connecting pipe 31 includes oppositely arranged first and second ends, the first end of the insertion connecting pipe 31 is fixedly connected to the second through hole 1212, and the second end of the insertion connecting pipe 31 is provided with a flexible pipe section 311; one end of the pull wire 32 is connected to the flexible pipe section 311, and the other end is connected to the rotating assembly 21 to drive the flexible pipe section 311 to bend in at least two different directions when the rotating assembly 21 rotates, specifically, when the rotating assembly 21 rotates in the mounting cavity 101, the flexible pipe section 311 can be inserted into the outer periphery of the insertion connecting pipe 31 to realize 360° omnidirectional free rotation.

[0056] When the endoscope of the present application is used for endoscopic examination, the doctor can drive the rotating assembly 21 to rotate in the mounting cavity 101 by applying external force to the rocker 23. During the rotation of the rotating assembly 21, the pull wire 32 connected with the flexible pipe section 311 can be driven to move, and in turn the flexible pipe section 311 can be driven to bend in at least two different directions, at this time, the optical elements, illumination elements and the like arranged in the flexible pipe section 311 can be detected and irradiated towards at least two different directions, specifically, the flexible pipe section 311 can be inserted into the outer periphery of the insertion connecting pipe 31 to realize 360° omnidirectional free rotation, and in turn the lesion site of the patient can be more comprehensively observed and detected. At the same time, during the process of applying external force to the rocker 23, after the rotating assembly 21 is rotated to the required position, the doctor can remove the external force applied to the rocker 23, at this time, the locking assembly 22 arranged between the rotating assembly 21 and the inner wall surface of the mounting cavity 101 can also lock the rotating assembly 21 at the current position, that is, the position where the rocker 23 drives the rotating assembly 21 to rotate, at this time, the doctor can carefully detect the lesion site of the patient, and during this process, the doctor does not need to press or hold the rocker 23 for a long time, and is not prone to operation fatigue.

[0057] In summary, the endoscope of the present application does not need the doctor to continuously exert force on the rocker 23 during operation, and only needs to exert external force on the rocker 23 to rotate the rotating assembly 21 to the required position, and then remove the external force exerted on the rocker 23, at which time the locking assembly 22 can lock the rotating assembly 21 at the current position, which is simple to operate and easy to use. During use, by exerting different direction forces on the rocker 23, the rotating assembly 21 can be driven to rotate to different positions, and in turn the pull wire 32 can be driven to move to bend the flexible pipe section 311 towards at least two different directions, and finally the purpose of comprehensively checking the lesion site of the patient can be achieved.

[0058] In combination with Figure 1 , Figure 6 and Figure 7 , the shell component 10 of the present application can be combined by two shell components, and can also be combined by three or more shell components, as long as other deformation modes under the concept of the present application are within the protection scope of the present application. The present embodiment will be introduced in the mode that the shell component 10 is combined by two shell components.

[0059] Specifically, the shell component 10 in the present embodiment includes a first shell 11 and a second shell 12. The first shell 11 includes a first main body 111 and a first extension 112, the first main body 111 is provided with a first cavity body 1111 and a first through hole 1112 in communication with the first cavity body 1111, and the first extension 112 is connected with the first main body 111 and extends away from the first main body 111; the second shell 12 includes a second main body 121 and a second extension 122, the second main body 121 is provided with a second cavity body 1211 and a second through hole 1212 in communication with the second cavity body 1211, and the second extension 122 is connected with the second main body 121 and extends away from the second main body 121. Wherein, the first shell 11 and the second shell 12 are connected by a buckle 50. After the first shell 11 and the second shell 12 are connected, the first cavity body 1111 and the second cavity body 1211 surround to form the above-mentioned mounting cavity 101, which is convenient for mounting the rotating assembly 21 and other structures. The first extension 112 and the second extension 122 surround to form a holding handle, so that the doctor can realize one-handed operation when using, that is, the doctor can hold the holding handle with four fingers except the thumb in one hand, and at the same time use the thumb to push the rocker 23 to exert external force on the rocker 23, which is simple to operate and easy to perform.

[0060] In addition, since the first shell 11 and the second shell 12 in the embodiment are connected together through the buckle 50, the endoscope can be easily assembled, and the production cost of the endoscope can be reduced. Of course, in other embodiments of the present application, the first shell 11 and the second shell 12 can also be connected by screws, pins, adhesion, etc., as long as other deformation modes under the concept of the present application are within the protection scope of the present application.

[0061] Optionally, the first body part 111 and the second body part 121 in the embodiment can be a hemispherical shell, an ellipsoidal shell, etc., and the first extension part 112 and the second extension part 122 can be a flat strip, an arc-shaped strip, etc., which are not limited in the present application.

[0062] Again referring to Figures 1 to 5 As shown in the figure, the shell component 10 in the embodiment further includes a conical base 13 connected to the second shell 12, and the conical base 13 is provided with a third through hole 131 communicating with the second through hole 1212, and the cross-sectional area of the conical base 13 gradually decreases in the direction away from the second shell 12. In actual assembly, the conical base 13 can be connected to the second shell 12 by welding, adhesion, screwing, clamping, etc. The insertion connecting pipe 31 is arranged in the second through hole 1212 and the third through hole 131, and at this time, the arrangement of the conical base 13 can reinforce the strength of the end of the insertion connecting pipe 31 connected to the shell component 10, so as to avoid the breakage or deformation of the insertion connecting pipe 31 at the first end thereof after long-term use.

[0063] It can be understood that the cross-sectional area of the conical base 13 in the embodiment refers to the area obtained by cutting the conical base 13 in the direction perpendicular to the third through hole 131. In the embodiment, by gradually decreasing the cross-sectional area of the conical base 13 in the direction away from the second shell 12, the connection stability and strength of the first end of the insertion connecting pipe 31 can be improved, and the smoothness of the appearance of the endoscope can be ensured, so as to avoid the formation of obvious step structure on the surface of the endoscope. Of course, in other embodiments of the present application, the conical base 13 can also be a cylindrical base, a prismatic base, an elliptical base, etc., as long as other deformation modes under the concept of the present application are within the protection scope of the present application.

[0064] In combination with Figures 2 to 5 , and Figure 8 As shown in the figure, the locking assembly 22 in the embodiment includes a first damping part 221 and a second damping part 222. The first damping part 221 is arranged on the inner wall surface of the mounting cavity 101, and the second damping part 222 is arranged on the outer surface of the rotating assembly 21 and is adapted with the first damping part 221 to lock the rotating assembly 21 at the current position when the external force applied to the rocker 23 is removed.

[0065] When an external force is applied to the rocker 23, the rocker 23 can drive the rotating assembly 21 to rotate in the mounting cavity 101 against the frictional resistance between the first damping part 221 and the second damping part 222. When the external force applied to the rocker 23 is removed, the rotating assembly 21 can be locked at the current position by the action of the first damping part 221 and the second damping part 222, which is simple in structure and convenient for doctors to operate.

[0066] Exemplarily, the first damping part 221 includes an elastic damping ring which is fixedly arranged on the inner wall surface of the mounting cavity 101 and sleeved on the outer periphery of the rotating assembly 21. Optionally, the elastic damping ring can be a silica gel ring, an elastic rubber ring or other elastic damping ring.

[0067] Exemplarily, the second damping part 222 includes a hard protrusion arranged on the outer surface of the rotating assembly 21. When the external force applied to the rocker 23 is removed after the rotating assembly 21 is rotated to the predetermined position, the hard protrusion can be clamped on the inner wall surface of the elastic damping ring, so as to lock the rotating assembly 21 at the current position.

[0068] Further, the rotating assembly 21 in the embodiment includes a rotating hemisphere 212. In actual production, the hard protrusion described above is arranged on the spherical surface of the rotating hemisphere 212, and the hard protrusion is a plurality of hard protrusions arranged in multiple rows. Each row of hard protrusions includes at least two hard protrusions, and the multiple rows of hard protrusions are arranged on the spherical surface of the rotating hemisphere 212 in a radial manner with the top end of the rotating hemisphere 212 as the center, which is more convenient for locking the rotating hemisphere 212 at different positions and has better locking stability. Optionally, the hard protrusion in the embodiment can be arranged in the form of a short strip, a protruding point or other special shapes, which are not limited in the application. Correspondingly, the inner wall surface of the elastic damping ring is provided with a clamping groove 2211 structure corresponding to the hard protrusion, and the two structures cooperate with each other to stably lock the rotating assembly 21. In actual processing, the hard protrusion can be integrally formed on the spherical surface of the rotating hemisphere 212, or separately processed and then welded, clamped or screwed on the spherical surface of the rotating hemisphere 212. As long as it is other deformation modes under the concept of the application, it is within the protection scope of the application.

[0069] Of course, in other embodiments of the application, the first damping part 221 and the second damping part 222 can also be arranged as damping rack gears or elastic friction pads which are engaged with each other, as long as it is other deformation modes under the concept of the application, which is within the protection scope of the application.

[0070] Further, the rotating assembly 21 in the embodiment further comprises a ball joint 211 installed in the installation cavity 101, and a rotating half-sphere 212 rotatably installed on the ball joint 211, and the rocker 23 described above is fixedly connected to the surface of the rotating half-sphere 212 away from the ball joint 211. Specifically, the rocker 23 can be connected to the top end of the rotating half-sphere 212 by means of threading, buckling, adhesion or welding, and in actual use, the rocker 23 is driven to rotate the rotating half-sphere 212 relative to the ball joint 211 under the action of external force, and the locking assembly 22 is arranged between the rotating half-sphere 212 and the inner wall surface of the installation cavity 101 to lock the rotating half-sphere 212 in the current position when the external force applied to the rocker 23 is removed.

[0071] In addition, through the action of the ball joint 211, not only can the rotating half-sphere 212 be limited, but also the rotating stability of the rotating half-sphere 212 in the installation cavity 101 can be improved, which is more convenient for doctors to use and operate.

[0072] Further, the rotating half-sphere 212 in the embodiment comprises a support connecting plate 2121 and a half-sphere shell 2122. The support connecting plate 2121 is provided with a half-spherical groove 21213 which is matched with the ball joint 211 described above, and the half-sphere shell 2122 surrounds to form a hollow cavity 21222 which can accommodate the support connecting plate 2121, and the half-sphere shell 2122 is fixedly connected to the support connecting plate 2121, and the outer periphery of the half-sphere shell 2122 is provided with an outer flange 21221, and a plurality of pull wires 32 are connected to the outer flange 21221 at intervals. In the actual processing process, the rotating half-sphere 212 is usually molded by using a mold, and in the present application, the rotating half-sphere 212 is provided as two parts of the support connecting plate 2121 and the half-sphere shell 2122, which is more difficult to have defects such as bubbles and thermoplastic deformation in the molding process compared with the structure of the rotating half-sphere 212 provided as a solid half-sphere structure, and the thickness of each position of the half-sphere shell 2122 is generally uniform, which is more convenient to obtain qualified products in the process of injection molding.

[0073] In the actual assembly process, the plurality of pull wires 32 are arranged at intervals along the outer flange 21221 of the outer periphery of the half-sphere shell 2122, and when the rotating half-sphere 212 rotates, the pull wires 32 at different positions are subjected to different forces, which can further pull the flexible pipe section 311 to bend in different directions to facilitate comprehensive examination of the lesion site of the patient. For example, the pull wires 32 in the present application can be provided in three, four or more, which are designed and selected according to the bending requirements of the flexible pipe section 311, and the present application does not make specific limitations.

[0074] In combination with Figures 2 to 5 , Figure 9 andFigure 10 As shown, a plurality of connecting lugs 21211 are arranged at intervals around the outer periphery of the support connecting plate 2121, and the support connecting plate 2121 is fixedly connected to the hemispherical shell 2122 by means of fasteners 40 passing through the connecting lugs 21211. Exemplarily, the fasteners 40 can be fastening buckles, fastening screws, fastening pins, or the like, and the connecting lugs 21211 can be two, three, four, or more.

[0075] Further, a semispherical recess 21213 is arranged at the center of the plate surface of the support connecting plate 2121, and a plurality of anti-falling protrusions 21212 are arranged at intervals around the opening of the semispherical recess 21213, and the plurality of anti-falling protrusions 21212 form a circular annular cavity, and the minimum diameter of the circular annular cavity is smaller than the maximum diameter of the ball joint 211. When the ball joint 211 is actually assembled, the ball joint 211 is placed at the opening of the circular annular cavity, and then at least one of the support connecting plate 2121 and the ball joint 211 is subjected to the action of a force, at which time the ball joint 211 can push the anti-falling protrusions 21212 outward, and then enter the semispherical recess 21213. After the ball joint 211 enters the semispherical recess 21213, the plurality of anti-falling protrusions 21212 arranged at intervals around the opening of the semispherical recess 21213 are reset, and the minimum diameter of the circular annular cavity formed by the plurality of anti-falling protrusions 21212 is smaller than the maximum diameter of the ball joint 211, which can limit the ball joint 211 in the semispherical recess 21213, and thus can prevent the ball joint 211 from falling out of the semispherical recess 21213, and the structure is stable and reliable.

[0076] Exemplarily, the anti-falling protrusions 21212 can be two, three, or more, and the case where the anti-falling protrusions 21212 are six is shown in the drawings of the present application.

[0077] Further, the self-locking steering component 20 in the embodiment further comprises a locking auxiliary assembly 24, which is supported on the bottom of the ball joint 211 and at least used for applying a top-hat force to the ball joint 211 and the rotating hemispherical body 212, so as to top the rotating hemispherical body 212 towards the direction close to the inner wall of the mounting cavity 101, so that the second damping part 222 on the rotating hemispherical body 212 is tightly matched with the first damping part 221 on the inner wall surface of the mounting cavity 101, which can effectively lock the rotating hemispherical body 212, and the stability is higher.

[0078] Optionally, the locking auxiliary assembly 24 comprises a base support plate 241, a guide rod 242 and an elastic element 243. The base support plate 241 is fixedly installed in the installation cavity 101, and a connecting hole 2411 is arranged on the base support plate 241. The end of the guide rod 242 is provided with a limiting block 2421, the guide rod 242 is arranged in the connecting hole 2411 from the bottom of the base support plate 241 and is perpendicular to the base support plate 241, the limiting block 2421 is stopped at the bottom of the base support plate 241, at least one end of the guide rod 242 away from the limiting block 2421 has a threaded section 2422, a threaded hole 2111 is arranged on the ball joint 211, and the guide rod 242 is connected with the threaded hole 2111 through the threaded section 2422; and the elastic element 243 is sleeved on the guide rod 242, and the two ends of the elastic element 243 are respectively abutted against the plate surface of the base support plate 241 and the bottom of the ball joint 211. Optionally, the elastic element 243 can be a spring, a rubber sleeve or the like.

[0079] In actual use, when it is desired to realize reversing, the rocker 23 is first pressed downward, and is moved in the direction in which reversing is desired, so that the rocker 23 drives the rotating hemisphere 212 to rotate around the center of the ball joint 211. The ball joint 211 is pressed to drive the guide rod 242 to move downward by a certain distance, at this time, the elastic element 243 is compressed tightly. When the rotating hemisphere 212 is rotated to a specified position, the finger is slowly released, the rocker 23 is moved upward in a direction perpendicular to the top by a distance, until the hard clamping protrusion on the rotating hemisphere 212 is in contact with the elastic damping ring, and the frictional resistance between the two makes the current rotating hemisphere 212 remain stationary. At this time, the elastic element 243 rebounds to press upward against the ball joint 21 with a certain pressure, and this pressure is also transmitted to the rotating hemisphere 212, further compressing the clamping protrusion on the rotating hemisphere 212 and the elastic damping ring, so as to ensure the self-locking performance and the universal rotation performance of the whole mechanism.

[0080] Further, in the embodiment, the pull wires 32 are traction steel wires, which pass through small holes in the support connecting plate 2121 and the base support plate 241 respectively, the small holes serving as guide holes for the traction steel wires and being provided with round corners to prevent the traction steel wires from being scraped off. The traction steel wires are connected with the flexible pipe section 311, the rotating hemisphere 212 is rotated, four traction steel wires are pulled, and the distance pulled by each traction steel wire is different at different positions of the rotating hemisphere 212. The combination of the multiple traction steel wires pulls the flexible pipe section 311 of the inserted part 30 to realize universal rotation, and the structure is simple, stable and reliable.

[0081] Further, the first through hole 1112 in the embodiment includes a tapered hole section 11121, which gradually increases in diameter in a direction away from the mounting cavity 101, that is, the inner wall surface of the first through hole 1112 has a tapered slope, and through the action of the slope, when the rocker 23 is actuated to deviate from the axis of the first through hole 1112, the tapered slope can provide the necessary space for the movement of the rocker 23, avoiding interference between the rocker 23 and the inner wall surface of the first through hole 1112.

[0082] Optionally, the minimum aperture of the first through hole 1112 in the embodiment is 0.5 to 0.65 times the diameter of the rotating hemisphere 212, for example, 0.5 times, 0.55 times, 0.6 times, or 0.65 times, when the minimum aperture of the first through hole 1112 is greater than 0.65 times the diameter of the rotating hemisphere 212, it can cause the structure to be unable to clamp the rotating hemisphere 212, and it is not convenient to operate the rocker 23; when the minimum aperture of the first through hole 1112 is less than 0.5 times the diameter of the rotating hemisphere 212, it is easy to cause the rocker 23 to have a small movement stroke, which is not convenient for controlling the rotating assembly 21.

[0083] According to the above embodiments, the endoscope of the present application has at least the following technical effects:

[0084] (1) The endoscope of the present application can ensure that after pressing and lifting the rocker, the endoscope can be stationary at any angle direction, which is convenient for doctors to observe the lesions in the human body, and provides a reliable, flexible and convenient structure design scheme for the universal endoscope.

[0085] (2) The self-locking steering component of the present application is realized by increasing the clamping convex on the matching surface and using the elastic force of the elastic element, which can effectively ensure the self-locking ability;

[0086] (3) The universal rotating structure of the endoscope of the present application is realized by a spherical pair, which utilizes the cooperation between the rotating hemisphere and the ball joint to ensure rotation around the center of the ball joint, and at the same time, the combination of the spherical pair and the moving pair can ensure that the internal rotating part does not collide and interfere within a limited space range.

[0087] For purposes of the description hereinafter, the terms "upper", "lower", "right", "left", "rear", "front", "vertical" and "horizontal" as can be perceived herein relative to the accompanying drawings refer to the orientation of the components being described. However, it is to be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device described herein relative to the other device or structure is inverted, then a spatially relative term such as "above" can be interpreted as meaning "below" or "below" can be interpreted as meaning "above". The device can also be oriented in other ways (rotated at 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0088] In addition, it should be pointed out that the use of "first", "second" and the like words to define parts only facilitates the distinction of the corresponding parts, and the above words have no special meaning unless otherwise stated, and therefore cannot be understood as limiting the scope of protection of the present application.

[0089] The preferred embodiments of the present application have been described above with the purpose of enabling not to limit the scope of protection of the present application, and the present application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of protection of the present application.

Claims

1. An endoscope, characterized by, The utility model relates to a self-locking steering device, comprising: a housing component (10) which encloses a mounting cavity (101), and is provided with a first through hole (1112) and a second through hole (1212) which communicate with the mounting cavity (101); a self-locking steering component (20) which comprises a rotating assembly (21), a locking assembly (22) and a rocker (23), the rotating assembly (21) is rotatably installed in the mounting cavity (101), the rocker (23) is fixedly connected with the rotating assembly (21) and penetrates through the first through hole (1112) to the outside of the housing component (10), the rocker (23) is driven by external force to rotate the rotating assembly (21) in the mounting cavity (101), and the locking assembly (22) is arranged between the rotating assembly (21) and the inner wall surface of the mounting cavity (101) and is used for locking the rotating assembly (21) at the current position when the external force applied to the rocker (23) is removed; an insertion component (30) which comprises an insertion connecting pipe (31) and a plurality of pull wires (32), the insertion connecting pipe (31) comprises oppositely arranged first and second ends, the first end of the insertion connecting pipe (31) is fixedly connected to the second through hole (1212), and the second end of the insertion connecting pipe (31) is provided with a flexible pipe section (311); one end of the pull wire (32) is connected to the flexible pipe section (311), and the other end is connected to the rotating assembly (21) to drive the flexible pipe section (311) to bend in at least two different directions when the rotating assembly (21) rotates; the locking assembly (22) comprises: a first damping part (221) which is arranged on the inner wall surface of the mounting cavity (101); a second damping part (222) which is arranged on the outer surface of the rotating assembly (21) and is matched with the first damping part (221) to lock the rotating assembly (21) at the current position when the external force applied to the rocker (23) is removed; the rotating assembly (21) comprises: a spherical joint (211) which is installed in the mounting cavity (101); a rotating hemispherical body (212) which is rotatably installed on the spherical joint (211), the surface of the rotating hemispherical body (212) away from the spherical joint (211) is fixedly connected with the rocker (23), and the locking assembly (22) is arranged between the rotating hemispherical body (212) and the inner wall surface of the mounting cavity (101).

2. The endoscope of claim 1, wherein, the first damping part (221) comprises an elastic damping ring which is fixedly arranged on the inner wall surface of the mounting cavity (101) and is sleeved on the outer periphery of the rotating assembly (21), the inner wall surface of the elastic damping ring is provided with a clamping groove (2211); and / or, The second damping part (222) comprises a hard clamping protrusion arranged on the outer surface of the rotating assembly (21).

3. The endoscope of claim 2, wherein, The rotating assembly (21) comprises a rotating hemisphere (212), the hard clamping protrusion is arranged on the spherical surface of the rotating hemisphere (212), the hard clamping protrusion is a plurality of, the plurality of hard clamping protrusions are arranged in a plurality of rows, each row of the hard clamping protrusions comprises at least two hard clamping protrusions, and the plurality of rows of hard clamping protrusions are arranged radially on the spherical surface of the rotating hemisphere (212) with the top of the rotating hemisphere (212) as the center.

4. The endoscope of claim 1, wherein, The rotating hemisphere (212) comprises: A support connecting plate (2121) is provided with a hemispherical groove (21213) matched with the ball joint (211); A hemispherical shell (2122) is arranged around the hollow cavity (21222) capable of accommodating the support connecting plate (2121), the hemispherical shell (2122) is fixedly connected to the support connecting plate (2121), and the outer periphery of the hemispherical shell (2122) is provided with an outer flange (21221), and a plurality of the pull wires (32) are connected to the outer flange (21221) at intervals.

5. The endoscope of claim 4, wherein, The outer periphery of the support connecting plate (2121) is provided with a plurality of connecting lug blocks (21211), and the support connecting plate (2121) is fixedly connected to the hemispherical shell (2122) through the fasteners (40) penetrating through the connecting lug blocks (21211); and / or, The hemispherical groove (21213) is located at the center of the plate surface of the support connecting plate (2121), and a plurality of anti-disengagement protrusions (21212) are arranged at intervals in the circumferential direction of the slot of the hemispherical groove (21213), the plurality of anti-disengagement protrusions (21212) form a circular annular cavity, and the minimum diameter of the circular annular cavity is smaller than the maximum diameter of the ball joint (211).

6. The endoscope of claim 1, wherein, The self-locking steering component (20) further comprises: A locking auxiliary assembly (24) is arranged at the bottom of the ball joint (211) to at least apply a pressing force to the ball joint (211) and the rotating hemisphere (212).

7. The endoscope of claim 6, wherein, The ball joint (211) is provided with a threaded hole (2111), and the locking auxiliary assembly (24) comprises: A base support plate (241) is fixedly installed in the mounting cavity (101), and the base support plate (241) is provided with a connecting hole (2411); A base support plate (241) is fixedly installed in the mounting cavity (101), and the base support plate (241) is provided with a connecting hole (2411); A guide rod (242) is provided with a limiting block (2421) at its end, the guide rod (242) is arranged in the connecting hole (2411) from the bottom of the base support plate (241) and is perpendicular to the base support plate (241), the limiting block (2421) is stopped at the bottom of the base support plate (241), and at least one end of the guide rod (242) away from the limiting block (2421) is provided with a threaded section (2422), and the guide rod (242) is connected with the threaded hole (2111) through the threaded section (2422); An elastic element (243) is sleeved on the guide rod (242), and two ends of the elastic element (243) are respectively abutted against the plate surface of the base support plate (241) and the bottom of the ball joint (211).

8. The endoscope of claim 5, wherein, The first through hole (1112) comprises a tapered hole section (11121), and the diameter of the tapered hole section (11121) gradually increases in the direction away from the mounting cavity (101); and / or, The minimum aperture of the first through hole (1112) is 0.5 to 0.65 times the diameter of the rotating hemisphere (212).

9. The endoscope of any one of claims 1 to 8, wherein, The shell component (10) comprises: A first shell (11) comprising a first main body (111) and a first extension (112), the first main body (111) is provided with a first cavity (1111) and a first through hole (1112) in communication with the first cavity (1111), and the first extension (112) is connected with the first main body (111) and extends away from the first main body (111); A second shell (12) comprising a second main body (121) and a second extension (122), the second main body (121) is provided with a second cavity (1211) and a second through hole (1212) in communication with the second cavity (1211), and the second extension (122) is connected with the second main body (121) and extends away from the second main body (121); The first shell (11) and the second shell (12) are connected by a buckle (50), the first cavity (1111) and the second cavity (1211) form the mounting cavity (101), and the first extension (112) and the second extension (122) form a holding handle.

10. The endoscope of claim 9, wherein, The shell component (10) further comprises a conical base (13) connected to the second shell (12), the conical base (13) is provided with a third through hole (131) in communication with the second through hole (1212), and the cross-sectional area of the conical base (13) gradually decreases away from the second shell (12), and the insertion connecting pipe (31) is arranged in the second through hole (1212) and the third through hole (131).

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