Binocular image transmission assembly, endoscope and surgical instrument

Abstract

The invention discloses a binocular image transmission assembly, an endoscope and a surgical instrument. The binocular image transmission assembly can comprise a base, two circuit boards and two lens cones. Two first positioning holes extending in the first direction are formed in one end of the base. Two second positioning holes extending in the first direction are formed in the other end of the base, and the two first positioning holes are communicated with the two second positioning holes in a one-to-one correspondence mode. The circuit board includes an image sensor. The two circuit boards are arranged in the two first positioning holes in a one-to-one correspondence mode so that the circuit boards can be prevented from moving in the direction perpendicular to the first direction through the first positioning holes. The projection of the image sensor is located in the second positioning hole. One ends of the two lens cones are connected into the two second positioning holes in a one-to-one correspondence manner. According to the invention, the relative positions of the image sensors and the lens cones can be determined, so that the distance between each lens cone and the corresponding image sensor can be kept consistent, and the imaging effect is effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a binocular image transmission component, an endoscope and a surgical instrument. Background Art

[0002] An electronic endoscope is an auxiliary instrument for minimally invasive surgery. Doctors can observe the lesion structure and tissues through the electronic endoscope. In addition to providing image information to doctors, the electronic endoscope can also fully provide the depth information of each position of the surgical lesion. The application of the electronic endoscope during the operation can greatly reduce the probability of doctors' misoperation.

[0003] In the related art, the electronic endoscope includes a head end seat and two bases, two lenses, two image sensors, etc. installed on the head end seat. However, due to the small volume of the head end seat, the two image sensors are prone to position deviation during installation, so that the distance between each lens and its corresponding image sensor is inconsistent, which will further cause the images received by the two image sensors to be inconsistent, thereby affecting the imaging effect and ultimately reducing the safety of doctors during the operation using the electronic endoscope. Summary of the Invention

[0004] A series of simplified concepts are introduced in the summary of the invention part, which will be further described in detail in the detailed implementation part. The summary of the invention part of the present application does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution.

[0005] To at least partially solve the above problems, a first aspect of the present application provides a binocular image transmission component for an endoscope, and the binocular image transmission component includes:

[0006] A base, one end of the base is provided with two first positioning holes extending along a first direction, the other end of the base is provided with two second positioning holes extending along the first direction, and the two first positioning holes are in one-to-one correspondence and communicate with the two second positioning holes;

[0007] Two circuit boards, the circuit boards include image sensors, and the two circuit boards are respectively arranged in the two first positioning holes to prevent the circuit boards from moving in a direction perpendicular to the first direction through the first positioning holes, and the projection of the image sensor is located in the second positioning hole; and

[0008] Two lens barrels, one ends of the two lens barrels are respectively connected in the two second positioning holes.

[0009] The binocular image transmission component according to the first aspect of the present application determines the relative position between the image sensor and the lens barrel by providing a first positioning hole on the base suitable for positioning two circuit boards and a second positioning hole suitable for positioning two lens barrels, and the projection of the image sensor of the circuit board is located within the second positioning hole. As a result, the distance between each lens barrel and the corresponding image sensor can be kept consistent, thereby ensuring the consistency of the images received by the two image sensors and effectively improving the imaging effect.

[0010] Optionally, one end of the base includes a stop surface and a positioning boss. The stop surface is perpendicular to the first direction, the stop surface abuts against the circuit board along the first direction, the positioning boss protrudes from the stop surface along the first direction, and the positioning boss abuts against the circuit board along a direction perpendicular to the first direction.

[0011] In a plane perpendicular to the first direction, the positioning boss is located on the periphery of the second positioning hole, and the first positioning hole is formed in the area enclosed by the positioning boss and the stop surface.

[0012] Optionally, the base includes a plurality of the positioning bosses, and the plurality of positioning bosses are circumferentially spaced around the center line of the second positioning hole, and a first glue receiving groove is formed between two adjacent positioning bosses.

[0013] Optionally, a second glue receiving groove is formed at the other end of the base, and the second glue receiving groove communicates with the second positioning hole and the outside along a direction perpendicular to the first direction.

[0014] Optionally, a third glue receiving groove is formed on the outer peripheral surface at the other end of the lens barrel, and the third glue receiving groove communicates with the inside and the outside of the lens barrel.

[0015] The binocular image transmission component further includes a lens assembly, and the lens assembly is installed inside the lens barrel.

[0016] Optionally, the binocular image transmission component further includes a lens assembly, and the lens assembly is installed inside the lens barrel.

[0017] A positioning edge is provided on the inner peripheral surface at one end of the lens barrel, and the positioning edge abuts against the lens assembly along the axial direction of the lens barrel to prevent the lens assembly from moving axially towards the first positioning hole.

[0018] Optionally, the binocular image transmission component further includes a head end seat. A base positioning hole is formed at the root end of the head end seat, the base is received in the base positioning hole, two lens barrel mounting holes are formed at the tip end of the head end seat, the lens barrels are received in the lens barrel mounting holes, and the lens barrel mounting holes communicate with the base positioning hole and the outside along the first direction.

[0019] Optionally, the cross-sectional shape of the head end seat is oval, and the center lines of the two lens barrel mounting holes and the major axis of the oval are coplanar.

[0020] Optionally, a window is provided on the end face of the head end seat, and the window is arranged equidistantly from the outer peripheral surface of the head end seat. In a plane perpendicular to the first direction, the projections of the two lens barrel mounting holes are located inside the projection of the window.

[0021] The binocular image transmission assembly further includes a protective lens adapted to the window, and the protective lens is hermetically covered on the window.

[0022] Optionally, the head end seat is further provided with two oppositely arranged optical fiber mounting holes, the optical fiber mounting holes penetrate the head end seat along the first direction, the two optical fiber mounting holes are arranged at intervals along the major axis of the oval, and the two lens barrel mounting holes are located between the two optical fiber mounting holes.

[0023] The binocular image transmission assembly further includes two oppositely arranged illumination optical fibers, and the illumination optical fibers are inserted into the optical fiber mounting holes.

[0024] Optionally, the optical fiber mounting holes are symmetric about the plane where the center lines of the two lens barrel mounting holes are located.

[0025] Optionally, the cross-section of the optical fiber mounting hole is crescent-shaped.

[0026] Optionally, the head end seat is further provided with two oppositely arranged optical fiber mounting holes, the optical fiber mounting holes penetrate the head end seat along the first direction, the two optical fiber mounting holes are arranged at intervals along the major axis of the oval, and the two optical fiber mounting holes are located on both sides of the window.

[0027] The binocular image transmission assembly further includes a heat insulation ring, the heat insulation ring is sleeved on the outside of the end of the head end seat, and in a plane perpendicular to the first direction, the projection of the window and the projection of the optical fiber mounting hole are both located inside the projection of the heat insulation ring.

[0028] Optionally, the heat insulation ring includes a circumferential heat insulation portion and an axial heat insulation portion, the circumferential heat insulation portion is sleeved on the outer peripheral surface of the end of the head end seat, the axial heat insulation portion is axially connected to the end face of the end of the head end seat, and the axial heat insulation portion is respectively staggered with the optical fiber mounting hole and the window.

[0029] Optionally, the head end seat is a metal seat.

[0030] A second aspect of the present application provides an endoscope, and the endoscope includes the above-mentioned binocular image transmission assembly.

[0031] According to the endoscope of the second aspect of the present application, by applying the above binocular image transmission component, the yield rate of the endoscope can be improved, which is beneficial to improving the accuracy and safety of the doctor during the operation using the endoscope.

[0032] The third aspect of the present application provides a surgical instrument, which includes:

[0033] An adapter; and

[0034] The above endoscope, which is installed on the adapter.

[0035] According to the surgical instrument of the third aspect of the present application, by installing the above endoscope to the adapter, it is convenient to install it on the surgical robot, which is beneficial to improving the accuracy and safety of the surgical robot during the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The following drawings of the embodiments of the present application are hereby taken as a part of the present application for understanding the present application. The embodiments of the present application shown in the drawings and their descriptions are used to explain the principles of the present application. In the drawings,

[0037] Figure 1 is a schematic diagram of a surgical robot in the related art;

[0038] Figure 2 is a three-dimensional view of a binocular image transmission component according to a preferred embodiment of the present application;

[0039] Figure 3 is Figure 1 a cross-sectional view of the binocular image transmission component shown;

[0040] Figure 4 is Figure 1 an exploded three-dimensional view of the binocular image transmission component shown;

[0041] Figure 5 is Figure 1 a connection schematic diagram of components such as the base, barrel, lens assembly, and signal line in the binocular image transmission component shown;

[0042] Figure 6 is Figure 1 a connection schematic diagram of components such as the base, barrel, lens assembly, and circuit board in the binocular image transmission component shown; and

[0043] Figure 7 is Figure 1 a connection schematic diagram of the barrel and the lens assembly in the binocular image transmission component shown.

[0044] Description of the reference numerals:

[0045] 100: Binocular image transmission component 110: Base

[0046] 111: First positioning hole 112: Stop surface

[0047] 113: Positioning boss 114: First glue receiving groove

[0048] 115: Second positioning hole 116: Second glue receiving groove

[0049] 120: Circuit board 121: Image sensor

[0050] 130: Lens barrel 131: Positioning edge

[0051] 132: Third glue receiving groove 140: Lens assembly

[0052] 150: Head end seat 151: Root end

[0053] 152: Tip end 153: Base positioning hole

[0054] 154: Lens barrel mounting hole 155: Optical fiber mounting hole

[0055] 156: Window 160: Protective lens

[0056] 170: Illumination optical fiber 180: Heat insulation ring

[0057] 181: Circumferential heat insulation part 182: Axial heat insulation part

[0058] 190: Signal line D1: First direction

[0059] D2: Second direction D3: Third direction Detailed implementation manners

[0060] In the following description, numerous specific details are given to provide a more thorough understanding of the present application. However, it is obvious to those skilled in the art that the embodiments of the present application can be implemented without one or more of these details. In other instances, in order to avoid confusion with the embodiments of the present application, some well-known technical features are not described.

[0061] In order to thoroughly understand the embodiments of the present application, detailed structures will be presented in the following description. Obviously, the implementation of the embodiments of the present application is not limited to the specific details familiar to those skilled in the art.

[0062] It should be understood that the purpose of the terms used herein is only to describe specific embodiments and is not a limitation of the present application. The singular forms "a", "an" and "the" are also intended to include the plural forms unless the context clearly dictates otherwise. When the terms "comprise" and / or "include" are used in this specification, they specify the presence of the stated features, wholes, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0063] The ordinal numbers such as "first" and "second" cited in the present application are only identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" does not imply the existence of a "second component" by itself, and the term "second component" does not imply the existence of a "first component" by itself. It should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer" and similar expressions used in the present application are only for illustrative purposes and are not limitations.

[0064] The expressions such as "parallel" / "perpendicular" and similar ones used in the present application include absolute parallel / perpendicular relationships and substantially parallel / perpendicular relationships (for example, relationships within a range of -5° to +5° from absolute parallel / perpendicular), which can achieve equivalent effects.

[0065] Hereinafter, specific embodiments of the present application will be described in more detail with reference to the accompanying drawings, which show representative embodiments of the present application and do not limit the present application.

[0066] The medical devices in the related art may include, for example, Figure 1 As shown, a surgical robot 1 for remotely manipulating to perform surgeries. The surgical robot 1 may include a control system 2, an imaging system 3 and a robotic arm system 4, and the three can communicate with each other.

[0067] The control system 2 is also called a doctor's console. The control system 2 has a display unit for displaying the environment of the surgical instrument 6, a control mechanism for the doctor to operate, armrests, etc. The display unit is provided with an observation window for the doctor to observe. The control mechanism is configured to perform various actions, and these actions correspond to the actions of the surgical instrument 6. The armrests are for placing the doctor's arms. In addition, on the doctor's console, there are also other control switches that are convenient for the hands or feet to touch or press to perform various function operations and complete human-machine interaction.

[0068] The imaging system 3 has a display screen, an endoscope controller, system electronics, an image processor, etc. Thus, the internal organs of the patient can be presented to the operator more clearly.

[0069] The robotic arm system 4 is arranged beside the patient, and a surgical instrument 6 is arranged at its distal end for performing various surgical operations on the patient. The robotic arm system 4 may include at least one robotic arm 5. For example, Figure 1 Four robotic arms are schematically shown in. The robotic arm 5 has a plurality of connecting arms 7. Two adjacent connecting arms 7 are pivotally connected and relatively movable with specific degrees of freedom, so that the end or the distal end of the robotic arm 5 can achieve movements with multiple degrees of freedom, such as movements with seven degrees of freedom. An instrument support frame 8 is installed at the end of the robotic arm 5, which can also be called an instrument holding arm, and the surgical instrument 6 is detachably installed on the instrument support frame 8.

[0070] The present application provides a binocular image transmission component, an endoscope and a surgical instrument. Among them, the binocular image transmission component is a part of the endoscope. The surgical instrument includes an endoscope.

[0071] Refer to the following Figures 2 to 7 for a detailed description of the binocular image transmission component 100, the endoscope and the surgical instrument according to the present application.

[0072] The binocular image transmission component according to the present application may include a base 110, two circuit boards 120 and two lens barrels 130. Two first positioning holes 111 extending along a first direction D1 are formed at one end of the base 110. Two second positioning holes 115 extending along the first direction D1 are formed at the other end of the base 110. The two first positioning holes 111 are in one-to-one correspondence and communicate with the two second positioning holes 115. The circuit board 120 may include an image sensor 121. The two circuit boards 120 are arranged in the two first positioning holes 111 in one-to-one correspondence to prevent the circuit board 120 from moving in a direction perpendicular to the first direction D1 through the first positioning holes 111. The image sensor 121 is located on the side of the circuit board 120 facing the second positioning hole 115. And in a plane perpendicular to the first direction D1, the projection of the image sensor 121 is located in the second positioning hole 115. One end of the two lens barrels 130 is connected to the two second positioning holes 115 in one-to-one correspondence. When the binocular image transmission component 100 is located in the endoscope, the first direction D1 is the length direction of the endoscope.

[0073] For the binocular image transmission component 100 according to the present application, by providing the first positioning holes 111 suitable for positioning the two circuit boards 120 and the second positioning holes 115 suitable for positioning the two lens barrels 130 on the base 110, and the projection of the image sensor 121 of the circuit board 120 is located in the second positioning hole 115, the relative position between the image sensor 121 and the lens barrel 130 can be determined, so that the distance between each lens barrel 130 and the corresponding image sensor 121 can be kept consistent, and then the consistency of the images received by the two image sensors 121 can be ensured, effectively improving the imaging effect.

[0074] Refer to Figure 3, Figure 5 and Figure 6 , for example, one end of the base 110 may include a stop surface 112 and a positioning boss 113. The stop surface 112 is perpendicular to the first direction D1. The stop surface 112 abuts against the circuit board 120 along the first direction D1. The positioning boss 113 protrudes from the stop surface 112 along the first direction D1. And the positioning boss 113 abuts against the circuit board 120 along a direction perpendicular to the first direction D1. In a plane perpendicular to the first direction D1, the positioning boss 113 is located on the circumferential side of the second positioning hole 115. The first positioning hole 111 is formed in the area enclosed by the positioning boss 113 and the stop surface 112 (as Figure 3 shown). It can be understood that the aperture of the first positioning hole 111 here is larger than that of the second positioning hole 115, so as to form a step at the junction of the first positioning hole 111 and the second positioning hole 115. The stop surface 112 is the step surface at the step. When installing the circuit board 120 in the first positioning hole 111, the stop surface 112 can play a role in limiting the installation position of the circuit board 120 in the first direction D1. The first positioning hole 111 communicates with the second positioning hole 115, so that the image sensor 121 can obtain the image information of the observed object facing the lens barrel 130 through the second positioning hole 115. In the direction perpendicular to the first direction D1, that is, the radial direction of the first positioning hole 111, the positioning boss 113 can prevent the circuit board 120 from shifting relative to the base 110. By adopting the above technical means, it can be ensured that the relative positions of the image sensors 121 located on the two circuit boards 120 and the lens barrels 130 located in the two second positioning holes 115 remain unchanged, thereby helping to make the image information transmitted from the two lens barrels 130 to the two image sensors 121 consistent. Moreover, by providing the positioning boss 113, the circuit board 120 such as a PCB board can be accurately positioned by relying on the edge of the boss, so that the image sensor 121 chip fixed on the circuit board 120 is coaxially arranged corresponding to the position of the lens barrel 130.

[0075] Further, the base 110 may include a plurality of positioning bosses 113. The plurality of positioning bosses 113 are circumferentially spaced around the center line of the second positioning hole 115. A first glue groove 114 is formed between two adjacent positioning bosses 113. By circumferentially spacing the positioning bosses 113 along the second positioning hole 115, the first glue groove 114 is formed at the interval between two adjacent positioning bosses 113. In the installation state where the circuit board 120 is installed in the first positioning hole 111, by applying glue to each first glue groove 114 to accommodate the glue through the first glue groove 114, the contact area between the glue and the outer periphery of the circuit board 120 and between the glue and the positioning boss 113 can be increased, so that the strength and stability of the connection structure between the circuit board 120 and the base 110 can be effectively increased after the glue is cured.

[0076] Refer toFigures 3 to 6 , for example, a second glue storage groove 116 is formed at the other end of the base 110. According to the above description, the other end of the base 110 here refers to the end of the base 110 that is away from the first positioning hole 111 in the first direction D1. The second glue storage groove 116 communicates with the second positioning hole 115 and the outside in a direction perpendicular to the first direction D1. By providing the second glue storage groove 116, more glue can be accommodated between the outer peripheral surface of the lens barrel 130 and the base 110, which is beneficial to increasing the contact area between the glue and the outer peripheral surface of the lens barrel 130 and between the glue and the base 110, and thus can effectively increase the strength and stability of the connection structure between the lens barrel 130 and the base 110.

[0077] By providing multiple glue storage grooves such as the first glue storage groove 114 and the second glue storage groove 116 on the base 110, the reliable fixation of the lens barrel 130 assembly and the circuit board 120 is ensured, and at the same time, the sealing reliability is improved, so as to effectively prevent the cleaning liquid and hot steam from entering the lens and the chip during the cleaning and steam sterilization of the endoscope, and thus avoid image fogging and blurring and reduce the service life of the image transmission component.

[0078] Refer to Figures 3 to 7 , for example, a third glue storage groove 132 is formed on the outer peripheral surface at the other end of the lens barrel 130. According to the above description, the other end of the lens barrel 130 here refers to the end of the lens barrel 130 that is away from the first positioning hole 111 in the first direction D1. The third glue storage groove 132 communicates with the inside of the lens barrel 130 and the outside. The binocular image transmission component 100 may further include a lens assembly 140. The lens assembly 140 is installed inside the lens barrel 130. By providing the third glue storage groove 132, more glue can be accommodated between the lens assembly 140 installed inside the lens barrel 130 and the lens barrel 130, which is beneficial to increasing the contact area between the glue and the lens barrel 130 and between the glue and the lens assembly 140, and thus can effectively increase the strength and stability of the connection structure between the lens assembly 140 and the lens barrel 130. Moreover, when the combination of the base 110, the lens barrel 130 and the lens assembly 140 is installed on the head end seat 150, the glue accommodated in the third glue storage groove 132 can also increase the contact area between the glue and the head end seat 150, between the glue and the lens barrel 130, and between the glue and the lens assembly 140, which is beneficial to effectively increasing the strength and stability of the connection structures between the lens barrel 130, the lens assembly 140 and the head end seat 150 pairwise.

[0079] Refer to Figure 3 and Figure 7, Further, a positioning edge 131 is provided on the inner peripheral surface at one end of the lens barrel 130. The positioning edge 131 can be understood as a convex edge extending radially from the inner surface of the second positioning hole 115 towards the center of the second positioning hole 115. The lens barrel 130 can be understood as a circular tubular structure. The positioning edge 131 abuts against the lens assembly 140 along the axial direction of the lens barrel 130 to prevent the lens assembly 140 from moving axially towards the first positioning hole 111. Here, the axial direction can be parallel to the first direction D1. By providing the positioning edge 131, the lens assembly 140 can be positioned along the first direction D1, thereby facilitating the positioning and installation of the lens assembly 140 within the lens barrel 130. This can not only improve the installation accuracy of the lens assembly 140 within the lens barrel 130 but also contribute to improving the assembly efficiency. Moreover, by providing the positioning edge 131, the positioning of the lens assembly 140 such as the lens along the first direction D1 is directly dependent on the lens barrel 130 itself, eliminating the need for additional positioning parts and reducing the number of parts and the assembly dimension chain.

[0080] Optionally, the projection of the positioning edge 131 in a plane perpendicular to the first direction D1 can be annular or multiple independent and discontinuous structures.

[0081] Refer to Figures 2 to 4 , In addition, the binocular image transmission assembly 100 may further include a head end base 150. A base positioning hole 153 is provided at the root end 151 of the head end base 150. The base positioning hole 153 accommodates the base 110. Two lens barrel mounting holes 154 are provided at the tip end 152 of the head end base 150. The lens barrel mounting holes 154 accommodate the lens barrels 130. The lens barrel mounting holes 154 communicate with the base positioning hole 153 and the outside along the first direction D1. In the installed state where the head end base 150 is connected to the base 110, the root end 151 and the tip end 152 of the head end base 150 are the two ends of the head end base 150 along the first direction D1. By providing the base positioning hole 153 in the head end base 150, it is convenient to position and install the base 110 in the head end base 150. By providing two lens barrel mounting holes 154 in the head end base 150, it is convenient to position and install the two lens barrels 130 in the head end base 150. In this way, the relative positions between the base 110 and the head end base 150 and between the lens barrels 130 and the head end base 150 are determined. Furthermore, since the lens barrel mounting holes 154 also communicate with the outside of the head end base 150 along the first direction D1, which can be understood as direct communication or indirect communication, it is convenient to observe the things outside the tip end 152 of the head end base 150 through the lens barrel 130 along the first direction D1. Moreover, the head end base 150 can accommodate components such as the base 110, the circuit board 120, and the lens barrels 130 and protect each component.

[0082] Continue to refer to Figures 2 to 4, for example, the cross-sectional shape of the head end base 150 is elliptical. The center lines of the two lens barrel mounting holes 154 are coplanar with the major axis of the ellipse. The reason for setting the cross-sectional shape of the head end base 150 as elliptical is that the dimension of the two lens barrels 130 in the direction parallel to the connection line of the center lines of the two lens barrels 130 is larger than the dimension in the direction perpendicular to the connection line of the center lines of the two lens barrels 130. Here, the direction parallel to the connection line of the center lines of the two lens barrels 130 can be denoted as the second direction D2, and the direction perpendicular to the connection line of the center lines of the two lens barrels 130 can be denoted as the third direction D3. In other words, the combined body of the base 110, the circuit board 120 and the lens barrels 130 has a larger dimension in the second direction D2 than in the third direction D3. And making the center lines of the two lens barrel mounting holes 154 coplanar with the major axis of the ellipse is beneficial to improving the space utilization rate of the head end base 150 along the second direction D2. At the same time, it can also effectively improve the miniaturization of the dimension of the head end base 150 along the third direction D3 and the compactness of the structure.

[0083] In some other examples not shown, the cross-sectional shape of the head end base 150 can also be square, polygonal or other shapes.

[0084] Refer to Figures 2 to 4 , further, a window 156 is provided on the end face of the tip end 152 of the head end base 150. The window 156 is arranged equidistantly from the outer peripheral surface of the head end base 150. That is, the cross-sectional shape of the window 156 matches the cross-sectional shape of the outer peripheral surface of the head end base 150, and the two are two shapes with different radial dimensions that are enlarged and reduced in proportion. In the plane perpendicular to the first direction D1, the projections of the two lens barrel mounting holes 154 are located inside the projection of the window 156. In addition, the binocular image transmission assembly 100 may further include a protective lens 160 adapted to the window 156. The protective lens 160 is hermetically covered on the window 156. By providing the window 156 on the end face of the tip end 152 of the head end base 150 and providing the protective lens 160 at the window 156, while being able to observe the corresponding things through the protective lens 160, the components such as the base 110, the lens barrels 130 and the lens assembly 140 located inside the head end base 150 can be protected by the protective lens 160. The protective lens 160 is provided on the outer layer of the image transmission assembly, improving the protection strength for components such as the lens barrels 130.

[0085] In Figures 2 to 4In the example shown, taking into account the elliptical head end, an elliptical protective lens 160 is added to maximize the area of the protection region. On the end face of the head end base 150 corresponding to the outer peripheral edge of the window 156, a glue receiving groove can be continuously provided along the circumferential direction of the window 156 to more evenly receive the glue, so as to increase the contact area between the glue and the protective lens 160 and the head end base 150, increase the strength of the connection structure between the head end base 150 and the protective lens 160, ensure the reliable bonding of the lens and ensure the sealing of the edge of the protective lens 160.

[0086] Optionally, the protective lens 160 can be a light-transmitting structure such as glass.

[0087] Referring again to Figures 2 to 4 , further, the head end base 150 is also provided with two oppositely arranged optical fiber mounting holes 155. The optical fiber mounting holes 155 penetrate the head end base 150 along the first direction D1. The two optical fiber mounting holes 155 are arranged at intervals along the long axis of the ellipse. And the two lens barrel mounting holes 154 are located between the two optical fiber mounting holes 155. The binocular image transmission assembly 100 can also include two oppositely arranged illumination optical fibers 170. The illumination optical fibers 170 are inserted into the optical fiber mounting holes 155. By providing the optical fiber mounting holes 155, the optical fibers can be positioned and installed. At the same time, the two optical fibers are arranged at intervals along the long axis of the ellipse and are located on the two outer sides of the two lens barrel 130 mounting holes. In this way, the space of the head end base 150 along the second direction D2 is further utilized, and the space of the head end base 150 along the third direction D3 is not occupied or less occupied. This also helps the light sources transmitted by the two optical fibers to be distributed more widely and evenly in the observed area, so as to ensure that the lens barrel 130 located between the two optical fibers can transmit a clearer image to the image sensor 121 located on the circuit board 120.

[0088] In some other examples not shown, the two optical fiber mounting holes 155 can also be arranged at intervals along the short axis of the ellipse. In this way, the external dimension of the head end base 150 along the second direction D2 can be relatively small, and at the same time, the space of the head end base 150 along the third direction D3 is fully utilized.

[0089] In Figure 2 and Figure 3 In the example shown, the optical fiber mounting holes 155 are symmetric about the plane where the center line of the two lens barrel mounting holes 154 is located. The cross section of the optical fiber mounting hole 155 is crescent-shaped. The centers of the two circular arc edges of the crescent shape are both located on the side close to the lens barrel mounting hole 154. The crescent-shaped optical fiber mounting hole 155 can encapsulate the illumination optical fiber 170 with a crescent-shaped cross section. While taking into account the elliptical head end base, the filling area of the illumination optical fiber is increased as much as possible, so as to improve the illumination intensity, illumination range and illumination uniformity during the use of the endoscope.

[0090] See also Figures 2 to 4 In addition, the binocular image transmission assembly 100 may further include a heat-insulating ring 180. The heat-insulating ring 180 is sleeved on the outside of the tip 152 of the head end seat 150. And in a plane perpendicular to the first direction D1. The projection of the window 156 and the projection of the optical fiber installation hole 155 are both located on the inner side of the projection of the heat-insulating ring 180. Adding the heat-insulating ring 180 to the edge of the head end does not affect the conduction path of the mirror body, and reduces the risk of burns to a certain extent.

[0091] Continue reading Figures 2 to 4 For example, the heat insulating ring 180 may include a circumferential heat insulating portion 181 and an axial heat insulating portion 182. The circumferential heat insulating portion 181 is sleeved on the outer circumferential surface of the tip end 152 of the head end seat 150. The axial heat insulating portion 182 is connected to the end surface of the tip end 152 of the head end seat 150 along the axial direction of the head end seat 150. The axial heat insulating portion 182 is staggered with the optical fiber mounting hole 155 and the window 156, respectively.

[0092] Optionally, the heat insulating ring 180 is disposed on the outer peripheral edge of the head end seat 150. The heat insulating ring 180 is made of high temperature resistant heat insulating materials such as polyetheretherketone (PEEK), polyphenylenesulfide (PPS), polyetherimide (PEI), ceramics, etc., to avoid burns when the head end is close to the tissue.

[0093] For example, the head end seat 150 is a metal seat. The head end seat 150 is made of metal to increase the structural strength and improve the service life.

[0094] Continue reading Figures 2 to 4 In addition, the binocular imaging assembly 100 may further include a signal line 190. The signal line 190 is connected to the two circuit boards 120 to achieve signal transmission.

[0095] The binocular image transmission assembly according to the present application may also be referred to as a lens module. The lens module is designed in an integrated manner, and a single base 110 is used to install two lens barrels 130 and two image sensors 121, so that the two sets of lens barrels 130 and lens assemblies 140 have a unified assembly base 110 and positioning reference, thereby making the debugging and fixing operations easier and easier to maintain and manage.

[0096] The present application also provides an endoscope, which may include the binocular imaging assembly 100 described above.

[0097] According to the endoscope of the present application, by applying the above binocular image transmission assembly 100, the yield rate of the endoscope can be improved, which is beneficial to improving the accuracy and safety of the doctor during the operation using the endoscope.

[0098] The present application also provides a surgical instrument. The surgical instrument may include an adapter and the above endoscope. The endoscope is mounted on the adapter.

[0099] According to the surgical instrument of the present application, by mounting the above endoscope to the adapter, it is convenient to be mounted on a surgical robot, which is beneficial to improving the accuracy and safety of the surgical robot during the operation.

[0100] Unless otherwise defined, the technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the technical field of the present application. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application. Terms such as "arranged" that appear herein can mean that one component is directly attached to another component or that one component is attached to another component through an intermediate member. The features described in one embodiment herein can be applied to another embodiment alone or in combination with other features, unless the feature is not applicable or otherwise stated in that other embodiment.

[0101] The present application has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of illustration and example, and are not intended to limit the present application within the scope of the described embodiments. Those skilled in the art can understand that according to the teachings of the present application, more variations and modifications can be made, and these variations and modifications all fall within the scope claimed by the present application.

Claims

1. A binocular image transmission component for an endoscope, characterized in that, the binocular image transmission component includes: a base, one end of the base is provided with two first positioning holes extending along a first direction, the other end of the base is provided with two second positioning holes extending along the first direction, and the two first positioning holes are correspondingly communicated with the two second positioning holes; two circuit boards, the circuit boards include image sensors, the two circuit boards are correspondingly arranged in the two first positioning holes to prevent the circuit boards from moving in a direction perpendicular to the first direction through the first positioning holes, and the projection of the image sensor is located in the second positioning hole; and two lens barrels, one ends of the two lens barrels are correspondingly connected in the two second positioning holes.

2. The binocular image transmission component according to claim 1, characterized in that, one end of the base includes a stop surface and a positioning boss, the stop surface is perpendicular to the first direction, the stop surface abuts against the circuit board along the first direction, the positioning boss protrudes along the first direction from the stop surface, and the positioning boss abuts against the circuit board in a direction perpendicular to the first direction, in a plane perpendicular to the first direction, the positioning boss is located on the circumferential side of the second positioning hole, and the first positioning hole is formed in the area enclosed by the positioning boss and the stop surface.

3. The binocular image transmission component according to claim 2, characterized in that, the base includes a plurality of the positioning bosses, the plurality of positioning bosses are circumferentially spaced around the center line of the second positioning hole, and a first glue receiving groove is formed between two adjacent positioning bosses.

4. The binocular image transmission component according to claim 2, characterized in that, the other end of the base is provided with a second glue receiving groove, and the second glue receiving groove is communicated with the second positioning hole and the outside in a direction perpendicular to the first direction.

5. The binocular image transmission component according to claim 2, characterized in that, the outer peripheral surface of the other end of the lens barrel is provided with a third glue receiving groove, the third glue receiving groove is communicated with the inside and the outside of the lens barrel, the binocular image transmission component further includes a lens assembly, and the lens assembly is installed inside the lens barrel.

6. The binocular image transmission component according to claim 1 or 2, characterized in that, the binocular image transmission component further includes a lens assembly, and the lens assembly is installed inside the lens barrel, the inner peripheral surface of one end of the lens barrel is provided with a positioning edge, and the positioning edge abuts against the lens assembly along the axial direction of the lens barrel to prevent the lens assembly from moving along the axial direction towards the first positioning hole.

7. The binocular image transmission component according to claim 1 or 2, characterized in that, the binocular image transmission component further includes a head end seat, the root end of the head end seat is provided with a base positioning hole for accommodating the base, the tip end of the head end seat is provided with two lens barrel mounting holes for accommodating the lens barrels, and the lens barrel mounting holes are communicated with the base positioning hole and the outside along the first direction.

8. The binocular image transmission component according to claim 7, characterized in that, The cross-sectional shape of the head end seat is oval, and the center lines of the two lens barrel mounting holes and the long axis of the oval are coplanar.

9. The binocular image transmission assembly according to claim 8, wherein, a window is provided on the end face of the head end seat, and the window is arranged equidistantly from the outer peripheral surface of the head end seat. In a plane perpendicular to the first direction, the projections of the two lens barrel mounting holes are located inside the projection of the window. The binocular image transmission assembly further includes a protective lens adapted to the window, and the protective lens is hermetically covered on the window.

10. The binocular image transmission assembly according to claim 8, wherein, the head end seat is further provided with two oppositely arranged optical fiber mounting holes, the optical fiber mounting holes penetrate through the head end seat along the first direction, the two optical fiber mounting holes are arranged at intervals along the long axis of the oval, and the two lens barrel mounting holes are located between the two optical fiber mounting holes. The binocular image transmission assembly further includes two oppositely arranged illumination optical fibers, and the illumination optical fibers are inserted into the optical fiber mounting holes.

11. The binocular image transmission assembly according to claim 10, wherein, the optical fiber mounting holes are symmetric about the plane where the center lines of the two lens barrel mounting holes are located.

12. The binocular image transmission assembly according to claim 11, wherein, the cross-section of the optical fiber mounting hole is crescent-shaped.

13. The binocular image transmission assembly according to claim 9, wherein, the head end seat is further provided with two oppositely arranged optical fiber mounting holes, the optical fiber mounting holes penetrate through the head end seat along the first direction, the two optical fiber mounting holes are arranged at intervals along the long axis of the oval, and the two optical fiber mounting holes are located on both sides of the window. The binocular image transmission assembly further includes a heat insulation ring, the heat insulation ring is sleeved on the outside of the end of the head end seat, and in a plane perpendicular to the first direction, the projection of the window and the projection of the optical fiber mounting hole are both located inside the projection of the heat insulation ring.

14. The binocular image transmission assembly according to claim 13, wherein, the heat insulation ring includes a circumferential heat insulation part and an axial heat insulation part, the circumferential heat insulation part is sleeved on the outer peripheral surface of the end of the head end seat, the axial heat insulation part is axially connected to the end face of the end of the head end seat, and the axial heat insulation part is staggered from the optical fiber mounting hole and the window respectively.

15. The binocular image transmission assembly according to claim 7, wherein, the head end seat is a metal seat.

16. An endoscope, wherein, the endoscope includes: the binocular image transmission assembly according to any one of claims 1 to 15.

17. A surgical instrument, wherein, the surgical instrument includes: an adapter; and the endoscope according to claim 16, and the endoscope is mounted on the adapter.

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