An electronic arthroscope

Abstract

The application discloses an electronic arthroscope, which comprises a sheath and a mirror core and a handle, the end of the mirror core far from the handle is a front end, the front end of the mirror core is a mirror core head, at least two camera modules are sequentially arranged on the mirror core head from the front end to the rear end within the range of 0-90 degrees with the axial direction of the mirror core, the included angle between the optical axis of all camera modules and the axis of the mirror core head is different, the camera module at the rear end is arranged in the dead angle area of the previous camera module, and the shooting ranges of any two camera modules partially overlap. At least two camera modules with different inclination angles are arranged on the mirror core head, so that multi-angle observation of the lesion position can be realized without replacing the mirror core or alternating use of multiple mirror cores with different shooting angles, and the problems of single observation angle and large visual dead angle of the arthroscope in the prior art are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical equipment, in particular to an electronic arthroscope. BACKGROUND

[0002] An endoscope is a device provided with an imaging device at the front end, which is introduced into the human body through natural orifices or small incisions made by surgery. When used, the endoscope is introduced into the organ to be examined, and the image of the relevant lesion site can be directly observed, which can help doctors to comprehensively examine the cavity and perform surgery in case, greatly improving the safety of surgery.

[0003] Endoscopes are mainly divided into hard tube type and soft tube type, also known as rigid endoscopes and flexible endoscopes.

[0004] Rigid endoscopes include three parts: image transmission, illumination, and air hole. The image transmission part is composed of an optical module including an objective lens, a relay system, and an eyepiece to conduct images. The illumination part uses a cold light source and a light guide fiber to enter the country. The air hole only exists in part of the endoscope, which sends air, water, and biopsy forceps. Rigid endoscopes include arthroscopes, hysteroscopes, thoracoscopes, rectoscopes, and uterine mirrors, which need to be used with external sheaths for water delivery.

[0005] Flexible endoscopes are mostly endoscopes that use fiber-optic image transmission and light guidance or CCD to conduct images. Due to its good flexibility and convenient operation performance, it has been widely used in medicine. Current products include gastroscopes, duodenoscopes, colonoscopes, cholangioscopes, small intestine scopes, bronchoscopes, nasopharyngolaryngoscopes, and ureteroscopes. The main advantage of flexible endoscopes is that they have a certain degree of flexibility, which allows them to easily enter complex internal organs of the human body, reducing the pain of patients and reaching places that rigid endoscopes cannot reach. The bending guide mechanism at the head can eliminate the visual blind spot of the lens to a certain extent.

[0006] Flexible endoscopes can be further divided into fiber endoscopes and electronic endoscopes.

[0007] Fiber endoscope structure: tip, bending section, insertion section, operation section, light guide hose, light guide connection section, eyepiece. The tip is a rigid section, and there are direct vision (forward vision), side vision, and oblique vision. Gastroscopes and colonoscopes use direct vision, and duodenoscopes and esophagoscopes use side vision. The tip has: an objective hole (image guide), a light hole (light guide), a gas / water hole (nozzle), and a biopsy hole. The bending section uses a steel wire traction method, and the head has a steel wire connected to the handle. Turning the handle control wheel can pull different direction steel wires to make the bending head swing in the corresponding direction. The bending section has a light guide, an image guide, various pipelines, traction devices, a bending tube, and a bending rubber. The hose section includes the bending section and the insertion section, also known as a snake tube. It is equipped with a light guide, an image guide, a water / gas pipeline, a biopsy pipeline (also an aspiration pipeline), a traction steel wire, a stainless steel belt hose, and a metal mesh tube, and the outermost layer is a smooth plastic sleeve. The image transmission system of the fiber endoscope is composed of a fiber bundle, which is composed of tens of thousands of extremely thin glass fibers. According to the principle of total reflection of optics, the outer surface of all glass fibers must be coated with a film with a lower refractive index to ensure that all the light transmitted by the inner core fibers can be totally reflected. The transmission of a single fiber can only produce a light spot. To see the image, a large number of fibers must be integrated into a bundle. To transmit the image to the other end as the same image, each fiber must be arranged in the same position at both ends, which is called an image guide. If an image guide is broken, the image will have a black spot. The light guide does not need to be arranged in the same position, and the brightness will obviously decrease if many of them are broken. Therefore, this image transmission method requires a high manufacturing process for the fiber bundle and a high preservation method for the endoscope. Damage to the fiber bundle will directly affect the imaging effect of the endoscope, which is also the current imaging method of the traditional arthroscope.

[0008] Electronic endoscopes use CCD to replace image guides to transmit image signals, and then use an image processing center to process and convert them into video signals. CCD solid-state imaging devices are called CCD image sensors. Their structure is that a large number of light-sensitive diodes (pixels) are arranged on a silicon substrate to convert the imaging light into an electrical signal, which is then transmitted to obtain an image signal. The structure of an electronic endoscope is basically the same as that of a fiber endoscope, and it can be simply understood as replacing the image guide with a CCD. Many functions of the electronic endoscope cannot be achieved by the fiber endoscope. Electronic endoscopes have the advantages of clear images, easy observation, and low manufacturing cost, and are one of the development directions of endoscopes.

[0009] With the development of semiconductor technology, integrated circuit technology, and image sensors, the volume of endoscope camera modules has become smaller and smaller, and the pixel has become higher and higher, gradually replacing the traditional optical fiber image transmission method.

[0010] Arthroscopy is a kind of medical endoscope, which is a rod-shaped optical instrument for observing the internal structure of joints, and is an endoscope for diagnosing and treating joint diseases. Traditional endoscopes are mostly hard fiber imaging endoscopes.

[0011] During the operation using the arthroscopy commonly seen on the market, some problems exist as follows: ①The tilt angle of the objective lens at the front end of the existing arthroscopy is a fixed angle, the visual field range is small, and there are blind spots that cannot be observed during the operation. In order to obtain a larger visual field range, multiple arthroscopies with different tilt angles are often used alternately during the operation to observe the patient's joint, which reduces the efficiency of the operation site, causes great inconvenience to the doctor's operation, and increases the operation cost; ②The existing arthroscopy is mostly reusable. Although the current arthroscopy can meet the requirements of repeated cleaning and sterilization, it takes a long time to clean and disinfect the arthroscopy after each operation, which wastes manpower, and the cost of disinfection equipment is high. Repeated disinfection also shortens the service life of the arthroscopy and easily damages the image transmission system of the arthroscopy, which greatly affects the imaging effect; ③The existing arthroscopy is mainly optical, and the current optical fiber imaging resolution is low; ④The optical mirror itself does not have a light source, and an external optical cable is needed to display the picture on the display screen; ⑤The objective lens of the existing arthroscopy is mostly a precise optical part, which has a high cost and is easy to damage. Therefore, it is necessary to develop an electronic arthroscopy to solve the above problems. SUMMARY

[0012] In view of at least one of the above technical problems, the purpose of the present application is to provide an electronic arthroscopy, which can realize multi-angle observation of the lesion position and solve the problem of single observation angle of the arthroscopy in the prior art.

[0013] The technical scheme of the present application is:

[0014] One of the purposes of the present application is to provide an electronic arthroscopy, which comprises a sheath, a mirror core and a handle. The end of the mirror core away from the handle is the front end, and the front end of the mirror core is the head part of the mirror core. In the range of 0-90° with the axis direction of the mirror core, at least two camera modules are installed in the head part of the mirror core from the front end to the rear end. The included angle between the optical axis of all camera modules and the axis of the head part of the mirror core is different, wherein the camera module located at the rear end is arranged in the dead angle area of the previous camera module, and the camera range of any two camera modules has partial overlap.

[0015] Compared with the prior art, the advantages of the present application are:

[0016] The electronic arthroscope of the present application is provided with at least two camera modules with different tilt angles at the head of the mirror core, so that multi-angle observation of the lesion position can be realized without changing the mirror core or alternating use of multiple mirror cores with different shooting angles, solving the problem of single observation angle and large visual dead angle of the arthroscope in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present application will be further described below in conjunction with the drawings and embodiments:

[0018] Figure 1 The figure is a schematic diagram of the three-dimensional structure of the electronic arthroscope of the embodiment of the present application;

[0019] Figure 2 The figure is a schematic diagram of the cross-sectional structure of the electronic arthroscope (only including the mirror core, the mirror sheath and the handle) of the embodiment of the present application;

[0020] Figure 3 The figure is a schematic diagram of the cross-sectional structure of the electronic arthroscope of the embodiment of the present application; Figure 2 The figure is a schematic diagram of the cross-sectional structure of the electronic arthroscope of the embodiment of the present application;

[0021] Figure 4 The figure is a schematic diagram of the first camera module and a second camera module of the head of the mirror core of the electronic arthroscope of the embodiment of the present application;

[0022] Figure 5 The figure is a schematic diagram of the structure of the head of the mirror core of the electronic arthroscope of the embodiment of the present application;

[0023] Figure 6 The figure is a schematic diagram of the structure of the mirror core of the electronic arthroscope of the embodiment of the present application;

[0024] Figure 7 The figure is a schematic diagram of the cross-sectional structure of the electronic arthroscope of the embodiment of the present application; Figure 6 The figure is a schematic diagram of the cross-sectional structure of the electronic arthroscope of the embodiment of the present application;

[0025] Figure 8 The figure is a schematic diagram of the cross-sectional structure of the electronic arthroscope of the embodiment of the present application;

[0026] Figure 9 The figure is a schematic diagram of the cross-sectional structure of the electronic arthroscope of the embodiment of the present application; Figure 8 The figure is a schematic diagram of the cross-sectional structure of the electronic arthroscope of the embodiment of the present application;

[0027] Figure 10 The figure is a schematic diagram of the cross-sectional structure of the electronic arthroscope of the embodiment of the present application;

[0028] Figure 11 The figure is a schematic diagram of the cross-sectional structure of the electronic arthroscope of the embodiment of the present application;

[0029] Figure 12The structural schematic diagram of the handle of the electronic arthroscope of the embodiment of the present application omits one half of the shell structure;

[0030] Figure 13 The structural schematic diagram of the first camera module and the two second camera modules of the mirror core head of the electronic arthroscope of the embodiment of the present application;

[0031] Figure 14 The structural schematic diagram of the first camera module and the three second camera modules of the mirror core head of the electronic arthroscope of the embodiment of the present application;

[0032] Figure 15 The structural schematic diagram of the first camera module and the three second camera modules of the mirror core head of the electronic arthroscope of the embodiment of the present application, and the light sources are distributed around the camera modules.

[0033] Wherein: 1, mirror core; 11, mirror core head; 110, first wall surface; 111, first inclined wall surface; 112, second inclined wall surface; 113, third inclined wall surface; 114, fourth inclined wall surface; 12, intermediate mirror tube; 13, fixed head; 131, double-ear structure; 132, groove; 1321, axial groove; 1322, circumferential groove; 1323, positioning circular groove; 14, first camera module; 15, second camera module; 16, light source; 2, mirror sheath; 21, sheath tube; 210, observation port; 211, water outlet hole; 22, connecting head; 220, end cover; 221, water inlet; 222, water outlet; 223, water inlet valve; 224, water outlet valve; 23, mounting sheath; 231, positioning protrusion; 232, limiting ring wall; 24, sealing ring; 3, handle; 30, recess structure; 31, adapter plate; 32, aviation joint; 33, fixing structure; 4, control box; 5, display; 6, key plate. DETAILED DESCRIPTION

[0034] To make the purpose, technical scheme and advantages of the present application more clear and obvious, the present application is further described in detail below with specific embodiments and with reference to the drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present application. In addition, in the following description, the description of the known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present application.

[0035] An electronic arthroscope of the embodiment of the present application, as shown in Figures 1 to 15 , mainly comprises a mirror core 1, a mirror sheath 2 and a handle 3. The end of the mirror core 1 away from the handle 3, i.e. the upper end as shown in Figure 2 , is the front end, and the front end part of the mirror core 1, i.e. the left end as shown in Figure 5 , is the mirror core head 11. As shown in Figure 3 , the bottom wall surface of the mirror core head 11 is from the front end to the rear end, i.e. the right end as shown in Figure 3At least two camera modules with different inclinations are arranged in the left-to-right direction shown, wherein the camera module at the rear end is arranged in the dead angle area of the previous camera module and the shooting ranges of any two adjacent camera modules partially overlap. Figure 3 As shown, the camera module at the rear end is arranged in the dead angle area of the camera module at the front end, i.e., the camera module at the left end shown, and the shooting ranges of the two camera modules partially overlap. Figure 3 As shown, the camera module at the rear end is arranged in the dead angle area of the camera module at the front end, i.e., the camera module at the left end shown, and the shooting ranges of the two camera modules partially overlap. Figure 3 As shown, the camera module at the rear end is arranged in the dead angle area of the camera module at the front end, i.e., the camera module at the left end shown, and the shooting ranges of the two camera modules partially overlap. Figure 3 As shown, the camera module at the rear end is arranged in the dead angle area of the camera module at the front end, i.e., the camera module at the left end shown, and the shooting ranges of the two camera modules partially overlap. Figure 4 As shown, the camera module at the rear end is arranged in the dead angle area of the camera module at the front end, i.e., the camera module at the left end shown, and the shooting ranges of the two camera modules partially overlap. Figure 3 As shown, the camera module at the rear end is arranged in the dead angle area of the camera module at the front end, i.e., the camera module at the left end shown, and the shooting ranges of the two camera modules partially overlap. Figure 4 As shown, the camera module at the rear end is arranged in the dead angle area of the camera module at the front end, i.e., the camera module at the left end shown, and the shooting ranges of the two camera modules partially overlap. Figure 3 As shown, the camera module at the rear end is arranged in the dead angle area of the camera module at the front end, i.e., the camera module at the left end shown, and the shooting ranges of the two camera modules partially overlap. Figure 4 As shown, the camera module at the rear end is arranged in the dead angle area of the camera module at the front end, i.e., the camera module at the left end shown, and the shooting ranges of the two camera modules partially overlap. Figure 4 As shown, the camera module at the rear end is arranged in the dead angle area of the camera module at the front end, i.e., the camera module at the left end shown, and the shooting ranges of the two camera modules partially overlap. Figure 4 As shown, the camera module at the rear end is arranged in the dead angle area of the camera module at the front end, i.e., the camera module at the left end shown, and the shooting ranges of the two camera modules partially overlap. Figure 4At least one auxiliary camera module (represented by the second camera module 15) is added to the lower right side of the first camera module 14 shown. The installation inclination angle of the second camera module 15 is different from that of the first camera module 14. For example, the angle between the axis of the mounting hole on which the first camera module 14 is installed (represented by the first mounting hole for the convenience of distinction and description) and the horizontal plane is 30°, and the angle between the axis of the mounting hole on which the second camera module 15 is installed (represented by the second mounting hole for the convenience of distinction and description) and the horizontal plane is 70°. The shooting angle range of the first camera module 14 is α (90°≤α≤180°, in the embodiment of the present invention, α is preferably 120°), and the shooting angle range of the second camera module 15 is β (90°≤β≤180°, in the embodiment of the present invention, β is preferably 120°). In this way, the second camera module 15 can obtain the field of view within most of the angle range of the blind spot area of ​​the first camera module 14, thereby greatly reducing the observation blind spot of the camera module and improving the field of view. There is no need to use multiple arthroscopes with different tilt angles alternately during surgery, which improves surgical efficiency. There is also no need to make major changes to the arthroscope to make the camera module rotatable, which leads to complex structure and increased cost. In addition, during the operation, the handle 3 can be used to drive the arthroscope to rotate within the human body, so that the arthroscope's field of view can basically cover the entire joint cavity.

[0036] According to some preferred embodiments of the present invention, Figure 3 and Figure 4As shown, the mirror head 11 is provided with three inclined wall surfaces. From the front end to the rear end or from left to right, the three inclined wall surfaces are sequentially denoted as the first inclined wall surface 111, the transition inclined wall surface and the second inclined wall surface 112. The first inclined wall surface 111 extends downward from the middle of the front end surface of the mirror head, the transition inclined wall surface is arranged between the first inclined wall surface 111 and the second inclined wall surface 112, the first installation hole for installing the first camera module 14 is arranged on the first inclined wall surface 111, and the second installation hole for installing the second camera module 15 is arranged on the second inclined wall surface 112. The angle between the first inclined wall surface 111 and the horizontal plane is greater than the angle between the second inclined wall surface 112 and the horizontal plane; the angle between the axis of the first installation hole and the axis of the mirror 1 is smaller than the angle between the axis of the second installation hole and the axis of the mirror 1. In one embodiment, the transition inclined wall surface is composed of the third inclined wall surface 113 and the fourth plane, that is, the angle between the fourth plane and the horizontal plane is zero. In fact, the mirror head is provided with three inclined wall surfaces, the angle between the third inclined wall surface 113 and the horizontal plane is equal to the angle between the second inclined wall surface 112 and the horizontal plane and is smaller than the angle between the first inclined wall surface 111 and the horizontal plane. In another embodiment, the mirror head is provided with four inclined wall surfaces in the direction from the front end to the rear end. From the front end to the rear end or from left to right, the four inclined wall surfaces are sequentially denoted as the first inclined wall surface 111, the third inclined wall surface 113, the fourth inclined wall surface 114 and the second inclined wall surface 112. In the direction from the front end to the rear end, the angles between the first inclined wall surface 111, the third inclined wall surface 113, the fourth inclined wall surface 114, the second inclined wall surface 112 and the horizontal plane first decrease and then increase. Specifically, the angle between the first inclined wall surface 111 and the horizontal plane is the largest, the angle between the third inclined wall surface 113 and the horizontal plane is smaller than the angle between the first inclined wall surface 111 and the horizontal plane, the angle between the fourth inclined wall surface 114 and the horizontal plane is smaller than the angle between the third inclined wall surface 113 and the horizontal plane and smaller than the angle between the second inclined wall surface 112 and the horizontal plane, but the angle between the third inclined wall surface 113 and the horizontal plane is smaller than the angle between the second inclined wall surface 112 and the horizontal plane, and the angle between the second inclined wall surface 112 and the horizontal plane is smaller than the angle between the first inclined wall surface 111 and the horizontal plane. Preferably, the first inclined wall surface 111 and the third inclined wall surface 113 are circularly arc transition, the third inclined wall surface 113 and the fourth inclined wall surface 114 or the fourth plane are circularly arc transition, and the fourth inclined wall surface 114 or the fourth plane and the second inclined wall surface 112 are circularly arc transition. It should be noted that the number of inclined wall surfaces can also be other numbers, which are not limited to the above three or four inclined wall surfaces, but can also be five, six, etc. Similarly, the number of auxiliary camera modules can also be other numbers, which are not limited to the above one, but can also be two, three, etc.However, since one auxiliary camera module can greatly reduce the dead angle of shooting, and the surgeon can adjust the angle of the arthroscope by rotating the handle during the operation, the observation field of view of the endoscope with one main camera module and one auxiliary camera module can basically cover the entire joint cavity. From the economic point of view, the number of auxiliary camera modules, i.e., the second camera module 15, is preferably one.

[0037] According to some preferred embodiments of the present application, as shown in Figure 5 As shown in FIG. 1, the first inclined wall surface 111 and the fourth inclined wall surface 114 are also provided with a plurality of light source holes for installing light sources 16, so as to provide appropriate brightness for the shooting of the first camera module 14 and the second camera module 15. In the embodiments of the present application, the light sources 16 are preferably LED light sources. The light source holes on the first inclined wall surface 111 are on the same straight line as the first mounting hole and are distributed on both sides of the first mounting hole. The light source holes on the fourth inclined wall surface 114 or the fourth plane are spaced apart and on the same straight line, and are arranged in a triangular manner with the second camera module 15. The second camera module 15 is on the midline of the connecting line of the two light source holes on the fourth inclined wall surface 114 or the fourth plane, so as to better provide appropriate brightness for the second camera module 15. It should be noted that one light source 16 is arranged on each side of each camera module, i.e., one camera module corresponds to two light sources 16. Alternatively, two camera modules can share two light sources 16, i.e., two light sources 16 are arranged on both sides between the two camera modules to provide light for the two camera modules at the same time. Specifically, as shown in FIG. 1, of the four camera modules, one light source 16 is arranged on each side of the upper two adjacent camera modules from top to bottom, and one light source 16 is also arranged on each side of the lower two adjacent camera modules. Figure 15 As shown in FIG. 1, of the four camera modules, one light source 16 is arranged on each side of the upper two adjacent camera modules from top to bottom, and one light source 16 is also arranged on each side of the lower two adjacent camera modules.

[0038] The above only shows an example of one auxiliary camera module. As an alternative embodiment, as shown in FIG. 2, the number of auxiliary camera modules, i.e., the second camera module 15, can also be two or three. Figures 13 to 14 As shown in FIG. 2, the number of auxiliary camera modules, i.e., the second camera module 15, can also be two or three. Figure 13 As shown in FIG. 3, the number of auxiliary camera modules, i.e., the second camera module 15, can also be two or three. Figure 14 As shown in FIG. 4, the number of auxiliary camera modules, i.e., the second camera module 15, can also be two or three. Figure 13The first camera module 14 is mounted on the first wall surface 110, and the optical axis of the first camera module 14 is parallel to the axis of the mirror core 1. The shooting angle range of the first camera module 14 is α (90°≤α≤180°). Two auxiliary camera modules, i.e., the second camera modules 15, are arranged on two inclined wall surfaces (indicated by 111' and 112' in the figure). Specifically, the shooting angle ranges are β (90°≤β≤180°) and γ (90°≤γ≤180°), respectively. The second camera module 15 with the shooting angle range β is in the dead angle area of the first camera module 14 and the shooting angle ranges of the two overlap partially (indicated by diagonal lines in the figure). The second camera module with the shooting angle γ is in the dead angle area of the second camera module 15 with the shooting angle range β and the shooting angle ranges of the two overlap partially (indicated by diagonal lines in the figure). The included angle between the optical axis of the second camera module 15 with the shooting angle range β and the optical axis of the first camera module 14 is preferably 30°. The included angle between the optical axis of the second camera module 15 with the shooting angle range γ and the optical axis of the first camera module 14 is preferably 70°. Correspondingly, the included angle between the inclined wall surface 111' and the first wall surface is preferably 30°, and the included angle between the inclined wall surface 112' and the first wall surface 110 is preferably 70°. The angles α, β and γ in the embodiment can be equal or not equal, and are preferably equal, such as 120°. Figure 14The first camera module 14 is installed on the first wall surface 110, and the optical axis of the first camera module 14 is parallel to the axis of the mirror core 1, the shooting angle range of the first camera module 14 is α (90°≤α≤180°), and the shooting angle ranges of the three auxiliary camera modules, i.e., two of the second camera modules 15, are β (90°≤β≤180°), γ (90°≤γ≤180°), and δ (90°≤δ≤180°) respectively, wherein the second camera module 15 with the shooting angle range of β is in the dead angle area of the first camera module 14 and the shooting angle ranges of the two partially overlap (indicated by diagonal lines in the figure), the second camera module 15 with the shooting angle of γ is in the dead angle area of the second camera module 15 with the shooting angle range of β and the shooting angle ranges of the two partially overlap (indicated by diagonal lines in the figure), and the second camera module 15 with the shooting angle of δ is in the dead angle area of the second camera module 15 with the shooting angle range of γ and the shooting angle ranges of the two partially overlap (indicated by diagonal lines in the figure). The included angle between the optical axis of the second camera module 15 with the shooting angle range of β and the optical axis of the first camera module 14 is preferably 30°, the included angle between the optical axis of the second camera module 15 with the shooting angle range of γ and the optical axis of the first camera module 14 is preferably 70°, and the included angle between the optical axis of the second camera module 15 with the shooting angle range of δ and the optical axis of the first camera module 14 is preferably 90°. Correspondingly, the included angle between the inclined wall surface 111'' and the first wall surface 110 is preferably 30°, the included angle between the inclined wall surface 112'' and the first wall surface 110 is preferably 70°, and the included angle between the horizontal surface 114' and the first wall surface 110 is 90°. The angles of α, β, γ, and δ in the embodiment can be equal or not equal, and are preferably equal, such as 120°. Figure 13 and Figure 14 In the examples of the second camera module 15 shown in the figure, the number of the second camera modules 15 is two and three, and each camera module (including the first camera module 14 and the second camera module 15) is further provided with a light source (not shown in the figure) on both sides, and each camera module is installed in an installation hole (not shown in the figure), each camera module has a light source hole (not shown in the figure) on both sides, and each light source is installed in a light source hole. By increasing the number of auxiliary camera modules, i.e., the second camera modules 15, the shooting field of view can be further increased, and the blind area of the field of view is smaller. For the plurality of auxiliary camera modules, a plurality of operation buttons of the auxiliary camera modules are provided on the operation interface of the key plate 6.

[0039] According to some preferred embodiments of the present application, as Figure 6As shown, the mirror core 1 includes a mirror core head, an intermediate mirror tube 12 and a fixed head 13 at the rear end. Preferably, the intermediate mirror tube 12 and the fixed head 13 are an integral structure. There is no limitation on the connection method between the mirror core head and the intermediate mirror tube 12, that is, the mirror core head and the intermediate mirror tube 12 are detachably connected or integrally connected. The interior of the intermediate mirror tube 12 is hollow to facilitate the wiring of the first camera module 14, the second camera module 15 and the light source 16. Preferably, the wires of the first camera module 14, the second camera module 15 and the light source 16 are welded to the inner wall of the intermediate mirror tube 12. The fixed head 13 is provided with a first connecting structure connected to the handle 3 and a second connecting structure connected to the mirror sheath 2. As shown Figure 6 As shown, the first connection structure is arranged at the end of the fixed head 13 away from the middle mirror tube 12, that is, Figure 6 The outer wall surface of the right end shown has two symmetrically distributed and outwardly protruding double-ear structures 131. Figure 12 As shown, the inner wall surface of the handle 3 is provided with a recessed structure 30 that matches the double-ear structure 131. As an alternative embodiment, the first connecting structure can also be provided at the end of the fixed head 13 away from the middle mirror tube 12, that is, Figure 6 The outer wall surface of the right end shown in the figure has two symmetrically distributed and inwardly concave recessed structures 30. Correspondingly, the inner wall surface of the handle 3 is provided with a radially inwardly extending protruding structure that matches the recessed structure 30 on the fixed head 13. The double-ear structure 131 cooperates with the recessed structure 30 to achieve a snap connection, which is simple in structure and reliable in connection. Figure 7 As shown, the second connection structure is a groove 132 formed on the outer wall of the fixed head 13 near the middle mirror tube 12. The groove 132 includes an axial groove 1321 extending along the axis of the fixed head 13 and a circumferential groove 1322 extending from one end of the axial groove 1321 along the circumferential direction of the outer wall of the fixed head 13. A positioning circular groove 1323 is formed at the end of the circumferential groove 1322 away from the axial groove 1321. In other words, the groove 132 is an L-shaped groove 132. Figure 10 and Figure 11 As shown, a positioning protrusion 231 , such as a cylindrical pin, is provided on the inner wall surface of the mirror sheath 2 , which is slidably matched with the groove 132 and matched with the positioning circular groove 1323 .

[0040] According to some preferred embodiments of the present invention, Figures 8 to 11As shown, the scope sheath 2 includes a sheath tube 21 and a connector 22. An observation port 210 is defined at the front end of the sheath tube 21 to allow access to the scope's head. The outer wall of the sheath tube 21 is also circumferentially defined with a plurality of water outlet holes 211. The size of the observation port 210 is determined based on the camera module, preferably to avoid interfering with the camera angles of the first and second camera modules 14, 15. The shape of the port is not limited, and can be, for example, elliptical. The connector 22 is connected to the middle mirror tube 12 and has a cavity inside. The rear end of the sheath tube 21 is connected to the front end of the connector 22 and the water outlet 211 is connected to the cavity. The rear end of the connector 22 is provided with a detachable end cap 220. The front end surface of the end cap 220 is provided with a sealing ring 24. The rear end of the end cap 220 is connected to a mounting sheath 23 coaxial with the sheath tube 21. The positioning protrusion 231 is provided on the inner wall surface of the mounting sheath 23. The sealing ring 24 is squeezed and expanded by the end cap 220 and is tightly fitted on the outer periphery of the middle mirror tube 12 to ensure that when the inlet and outlet valves 224 are opened, the liquid will not flow back to the end. The axial sides of the connector 22 are also as shown. Figure 10 The front and rear sides are provided with a water inlet 221 and a water outlet 222, and the water inlet 221 and the water outlet 222 are provided with a water inlet valve 223 and a water outlet valve 224 respectively. Figure 11 As shown, the end cap 220 and the mounting sheath 23 are an integral structure.

[0041] According to some embodiments of the present invention, since the inner hole of the middle lens tube 12 of the lens core 1 is relatively small, the outer diameters of the wires (not shown) of the first camera module 14, the second camera module 15, and the light source 16 are also relatively small and are not suitable for being exposed. Therefore, an adapter plate 31 is required to transfer the wires of the first camera module 14, the second camera module 15, and the light source 16 to the thicker handle wires, thereby electrically connecting them to the control box 4. Specifically, as Figure 12 As shown, an adapter plate 31 and a handle wire (not shown) are provided in the handle 3. The handle wire is electrically connected to the adapter plate 31, and the handle wire is electrically connected to the control box 4 through an aviation plug. The wires of the first camera module 14, the second camera module 15 and the wires of the light source 16 are all electrically connected to the adapter plate 31, and the handle wire is thicker than the wires of the first camera module 14, the second camera module 15 and the wires of the light source 16. Preferably, in order to facilitate the fixation of the adapter plate 31, a fixing structure 33 for fixing the adapter plate 31 is further provided in the handle 3, as shown in FIG. Figure 12 As shown, the fixing structure 33 is a fixing column formed on the inner wall of the handle 3 and protruding toward the center line of the handle 3. Preferably, the light source 16 of the embodiment of the present invention is integrated with the first camera module 14 and the second camera module 15, and they share a common wire, which is electrically connected to the adapter plate 31. This eliminates the need for additional light source 16 cables and light source 16 equipment, making operation more convenient.

[0042] like Figure 1As shown, the electronic arthroscope of the embodiment of the present application further comprises a control box 4, a display 5 and a key panel 6. The display 5 is used to display real-time images of the first camera module 14 and the second camera module 15. The key panel 6 is used to control image enlargement, reduction, image saving, white balance, light source 16 brightness, etc. The control box 4 is provided with an image processing board (not shown) of the camera module, the image processing board is electrically connected with the display 5, the image processing board processes and amplifies the image signals collected by the first camera module 14 and the second camera module 15 to obtain high-definition images and presents the high-definition images on the display 5.

[0043] According to some preferred embodiments of the present application, the electronic arthroscope of the embodiment of the present application is disposable, without the need for repeated disinfection for reuse, avoiding the risk of infection caused by incomplete disinfection of the traditional arthroscope, without the need for waiting for disinfection and sterilization before each operation, greatly shortening the operation preparation time.

[0044] According to some preferred embodiments of the present application, the first camera module 14 and the second camera module 15 of the embodiment of the present application adopt electronic cameras, instead of the existing traditional optical lenses, greatly reducing the cost.

[0045] It should be understood that the above specific embodiments of the present application are only used for illustrative or explanatory purposes of the principles of the present application, and do not constitute a limitation of the present application. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present application shall be included in the protection scope of the present application. In addition, the appended claims of the present application are intended to cover all variations and modifications falling within the scope and boundary of the appended claims, or the equivalent forms of such scope and boundary.

Claims

1. An electronic arthroscope comprising a scope sheath and a scope core and handle, characterized in that, The mirror core is provided with at least two camera modules, and the camera modules are arranged on the front end of the mirror core head in the range of 0-90° with respect to the axial direction of the mirror core. The mirror core head comprises a first wall surface perpendicular to the axis of the mirror core and at least two second wall surfaces with different inclinations extending backward from the lower end of the first wall surface. The second wall surface comprises a first inclined wall surface, a transition wall surface and a second inclined wall surface.

2. An electronic arthroscope according to claim 1, wherein The second wall surface comprises two inclined wall surfaces with different inclinations or comprises two inclined wall surfaces with different inclinations and a horizontal wall surface arranged in sequence. The first wall surface and the two inclined wall surfaces or the first wall surface, the two inclined wall surfaces and the horizontal wall surface are provided with an installation hole for installing a camera module, and the two sides of any installation hole are provided with a light source hole.

3. An electronic arthroscope according to claim 1, wherein The mirror core further comprises an intermediate mirror tube and a fixing head at the rear end.

4. An electronic arthroscope according to claim 3, wherein The first connecting structure is a double-ear structure or a recess structure arranged on the outer wall surface of the end of the fixing head away from the intermediate mirror tube.

5. An electronic arthroscope according to claim 3 or 4, wherein The second connecting structure is a groove arranged on the outer wall surface of the end of the fixing head close to the intermediate mirror tube. The inner wall surface of the handle is provided with a recess structure matched with the double-ear structure or a protruding structure matched with the recess structure. The second connecting structure is a groove arranged on the outer wall surface of the end of the fixing head close to the intermediate mirror tube. The inner wall surface of the handle is provided with a recess structure matched with the double-ear structure or a protruding structure matched with the recess structure. The second connecting structure is a groove arranged on the outer wall surface of the end of the fixing head close to the intermediate mirror tube. The inner wall surface of the handle is provided with a recess structure matched with the double-ear structure or a protruding structure matched with the recess structure.

6. An electronic arthroscope according to claim 5, wherein The mirror sheath comprises a sheath tube and a connecting head, the front end of the sheath tube is provided with an observation port for avoiding the head of the mirror core, and a plurality of water outlets are arranged on the outer wall of the sheath tube in a circumferential direction; The connecting head is connected to the middle mirror tube, and the connecting head has a cavity inside, the rear end of the sheath tube is connected to the front end of the connecting head, the water outlets are connected to the cavity, the rear end of the connecting head is provided with a detachable end cover, the front end surface of the end cover is provided with a sealing ring, the rear end of the end cover is connected to a mounting sheath coaxial with the sheath tube, the positioning protrusions are arranged on the inner wall surface of the mounting sheath, the sealing ring is tightly sleeved on the outer periphery of the middle mirror tube by being extruded and expanded by the end cover; The connecting head is provided with a water inlet and a water outlet on the two axial sides, and the water inlet and the water outlet are respectively provided with a water inlet valve and a water outlet valve.

7. An electronic arthroscope according to claim 2, wherein The handle is provided with an adapter plate and a handle wire, the handle wire and the adapter plate are electrically connected, and the handle wire is electrically connected to the control box through an aviation plug; The wires of the camera module and the light source are electrically connected to the adapter plate, or the camera module and the light source are integrated together and electrically connected to the adapter plate through a common wire, and the handle wire is thicker than the wires of the camera module and the light source or the common wire.

8. An electronic arthroscope according to claim 7, wherein The handle is further provided with a fixing structure for fixing the adapter plate, the fixing structure is a fixing column formed on the inner wall of the handle and protruding towards the center line direction of the handle; and / or The control box is provided with an image processing plate of the camera module, the image processing plate is electrically connected to a display, the image processing plate processes and amplifies the image signals collected by the camera module to obtain high-definition images and presents the high-definition images on the display.

Images