End head of endoscope tube, endoscope tube and endoscope

Abstract

The utility model provides an endoscope tube end, an endoscope tube and an endoscope, the endoscope tube end is used for being installed at the far end of an endoscope tube main body, the endoscope tube main body comprises an inner tube and an outer tube arranged outside the inner tube in a sleeving mode, an annular channel is formed between the inner tube and the outer tube, the endoscope tube end comprises an end main body, the end main body is provided with a first channel, and the first channel is used for being communicated with the annular channel; a flow guide hole, a first mounting groove and at least one second mounting groove are formed in the front end, away from the endoscope tube body, of the first channel, the flow guide hole and the first mounting groove both extend to the front end face of the end head body, the second mounting groove is formed in the periphery of the first mounting groove, and the flow guide hole is communicated with the first channel; the camera is arranged in the first mounting groove; and the at least one light source is arranged in the corresponding second mounting groove. The endoscope tube end is simple in assembling process, convenient to install, not prone to generating optical crosstalk and good in imaging effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a mirror tube end head, a mirror tube and a endoscope. BACKGROUND

[0002] Endoscopes such as hysteroscopes, cystoscopes, gastroscopes, colposcopes, bronchoscopes, laparoscopes, colonoscopes, laparoscopes, etc. are sent into the human body through the natural cavity of the human body from the outside of the body to check certain parts of the human body.

[0003] The endoscope usually includes a mirror tube and an operating handle, the mirror tube is installed on the operating handle, and the end of the mirror tube away from the operating handle is usually provided with a camera and a light source, and the light source provides light source for the shooting of the camera. When in use, the doctor holds the operating handle and stretches the mirror tube into the target part in the body to observe the situation of the target part through the camera, and transmits the signal acquired by the camera to an external device electrically connected with the endoscope, and displays the image of the target part by using the external device to help the doctor understand and judge the situation of the target part.

[0004] However, in the existing endoscope, the assembly process of the mirror tube end head is complex, is not convenient to install, and the light in the light source is easy to return into the camera, which interferes with the imaging signal and causes poor imaging effect. CONTENT OF THE INVENTION

[0005] In view of the above problems, the mirror tube end head, the mirror tube and the endoscope provided by the embodiments of the present application have simple assembly process, are convenient to install, are not easy to produce light interference, and have good imaging effect.

[0006] In order to achieve the above purpose, the embodiments of the present application provide the following technical solutions:

[0007] In a first aspect, the present application provides a mirror tube end head for being installed to the distal end of a mirror tube main body, the mirror tube main body comprising: an inner tube and an outer tube sleeved outside the inner tube, and an annular channel between the inner tube and the outer tube, the mirror tube end head comprising:

[0008] An end head main body having a first channel for communicating with the annular channel; the first channel is provided with a flow guide hole, a first mounting slot and at least one second mounting slot away from the front end of the mirror tube main body, the flow guide hole and the first mounting slot both extend to the front end face of the end head main body, and the second mounting slot is arranged outside the first mounting slot, and the flow guide hole communicates with the first channel;

[0009] A camera arranged in the first mounting slot;

[0010] At least one light source arranged in the corresponding second mounting slot.

[0011] In a possible implementation, the second mounting slot also extends to the front end face of the end head main body.

[0012] In a possible implementation, the light source is completely accommodated in the second mounting groove, and the camera protrudes from the light source along the extension direction of the camera.

[0013] In a possible implementation, the camera comprises:

[0014] a lens barrel;

[0015] a lens disposed in the lens barrel and located at the front side of the lens barrel;

[0016] a circuit board connected to the lens barrel and located at the rear side of the lens barrel;

[0017] The front end of the lens barrel protrudes from the front end surface of the end body, or the front end of the lens barrel is flush with the front end surface of the end body.

[0018] In a possible implementation, the flow guide hole is located at the upper side of the first mounting groove, and the number of the second mounting grooves is two, and the two second mounting grooves are respectively located at the left and right sides of the first mounting groove.

[0019] In a possible implementation, the second mounting groove is in communication with the first mounting groove.

[0020] In a possible implementation, the camera is in interference fit with the first mounting groove, and the light source is in interference fit with the second mounting groove.

[0021] In a possible implementation, the camera is bonded in the first mounting groove by means of a light-transmitting adhesive, and the light source is bonded in the second mounting groove by means of a light-transmitting adhesive.

[0022] In a possible implementation, the end body further has a second channel for communication with the inner tube.

[0023] In a possible implementation, the end body further has a second channel for communication with the inner tube.

[0024] In a possible implementation, the lens barrel comprises an inner tube and an outer tube, the outer tube is sleeved outside the inner tube, and an annular channel is formed between the inner tube and the outer tube.

[0025] The cross-sectional shape of the inner tube comprises one of a circle, an ellipse, and a pear shape.

[0026] In a possible implementation, the lens barrel comprises an inner tube and an outer tube, the outer tube is sleeved outside the inner tube, and an annular channel is formed between the inner tube and the outer tube.

[0027] The mirror tube end head, the mirror tube and the endoscope provided by the application comprise an end head main body, a camera and a light source, and the end head main body has a first mounting groove and a second mounting groove inside. The second mounting groove is arranged at the outer periphery of the first mounting groove, so that the front end surface of the end head main body forms two independent modules, and the camera and the light source are arranged in the modules correspondingly. The modules are independent in function, which can prevent stray light emitted by the light source from entering the camera to interfere with the imaging signal of the camera. In addition, the modular design can arrange the accessories in different mounting grooves, and the assembly process is simple and convenient to install.

[0028] In addition to the technical problems solved by the embodiments of the application described above, the technical features constituting the technical solutions and the beneficial effects brought by these technical features, other technical problems solved by the mirror tube end head, the mirror tube and the endoscope provided by the embodiments of the application, other technical features included in the technical solutions and the beneficial effects brought by these technical features will be further described in detail in the specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0030] Figure 1 The structural schematic diagram of the endoscope provided by the embodiments of the application is shown in the figure.

[0031] Figure 2 The partial structural diagram of the endoscope provided by the embodiments of the application is shown in the figure.

[0032] Figure 3 The partial structural schematic diagram of the mirror tube provided by the embodiments of the application is shown in the figure.

[0033] Figure 4 The structural schematic diagram of the mirror tube end head provided by the embodiments of the application is shown in the figure.

[0034] Figure 5 The structural schematic diagram of the inner tube cross section provided by the embodiments of the application is shown in the figure.

[0035] Figure 6 The structural schematic diagram of another inner tube cross section provided by the embodiments of the application is shown in the figure.

[0036] Figure 7 The partial sectional view of the mirror tube provided by the embodiments of the application is shown in the figure.

[0037] Figure 8 A partial structural view of a mirror tube provided for an embodiment of the present application is shown in FIG. 1.

[0038] Figure 9 A structural view of a retainer provided for an embodiment of the present application is shown in FIG. 2.

[0039] Figure 10 A partial structural view of a retainer provided for an embodiment of the present application is shown in FIG. 3.

[0040] Reference signs:

[0041] 10 - endoscope

[0042] 100 - mirror tube; 100a - main body section; 100b - bending section

[0043] 110 - mirror tube main body; 111 - inner tube; 112 - outer tube; 112a - support portion; 113 - annular channel

[0044] 120 - mirror tube tip; 121 - tip main body; 1211 - first channel; 1212 - second channel; 1213 - flow guide hole; 1214 - first mounting groove; 1215 - second mounting groove

[0045] 122 - camera; 1221 - lens barrel; 1221a - partition portion; 1222 - lens; 1223 - circuit board; 1224 - sensor

[0046] 123 - light source

[0047] 124 - retainer; 1241 - camera mounting portion; 1242 - camera mounting opening; 1243 - light source mounting portion

[0048] 200 - operating handle; 201 - liquid inlet pipe; 202 - liquid outlet pipe; 210 - operating portion; 211 - knob; 220 - gripping portion; 230 - image processing device DETAILED DESCRIPTION

[0049] Endoscopes such as hysteroscopes, cystoscopes, gastroscopes, colposcopes, bronchoscopes, laparoscopes, colonoscopes, and laparoscopes are inserted into the human body through natural cavities of the human body from outside the human body to inspect certain parts of the human body.

[0050] An endoscope generally includes a mirror tube and an operating handle, the mirror tube being mounted to the operating handle, and a camera and a light source being mounted at an end of the mirror tube distal from the operating handle. The light source provides light for the camera to take pictures. When in use, a doctor holds the operating handle and inserts the mirror tube into a target part of the human body, observes the target part through the camera, and transmits signals acquired by the camera to an external device electrically connected to the endoscope, and displays an image of the target part on the external device to help the doctor understand and judge the condition of the target part.

[0051] However, in the existing endoscope, the assembly process of the endoscope tip is complex, inconvenient to install, and the light in the light source is easy to backflow into the camera, interfere with the imaging signal, and cause poor imaging effect and poor sealing.

[0052] To solve the above problems, the present application provides a mirror tube tip, a mirror tube and an endoscope, the mirror tube tip comprises a tip body, a camera and a light source, and the tip body has a first mounting groove and a second mounting groove inside. By setting the second mounting groove outside the first mounting groove, the front end face of the tip body forms two independent modules, and the camera and the light source are correspondingly arranged in each module, and each module is functionally independent, which can prevent stray light emitted by the light source from entering the camera to interfere with the imaging signal of the camera. Moreover, the modular design can arrange each accessory in different mounting grooves, and the assembly process is simple and convenient to install.

[0053] In order to make the above-mentioned purposes, features and advantages of the embodiments of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0054] The technical solutions of the present application and how the technical solutions of the present application solve the above-mentioned technical problems will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes can not be described again in some embodiments.

[0055] Figure 1 And Figure 2 The structure schematic diagram of the endoscope provided by the embodiments of the present application is shown. Referring to Figure 1 The embodiments of the present application provide an endoscope 10, which comprises a mirror tube 100 and an operating handle 200. The two axial ends of the mirror tube 100 are a proximal end and a distal end, respectively. The proximal end of the mirror tube 100 is installed in the operating handle 200, and the distal end of the mirror tube 100 extends away from the operating handle 200. The operating handle 200 is used for the operator (such as a doctor) to hold, so as to control the endoscope 10. The mirror tube 100 is used to extend into the target part of the human body, so as to observe the situation of the target part.

[0056] Among them, the distal end of the mirror tube 100 is usually provided with a camera 122 (see Figure 4 and a light source 123 (see Figure 4The camera 122 is used to observe the image of the target site in the body, and the light source 123 is used to illuminate the target site so that the camera 122 can observe a clear image. The liquid path components (not shown in the figure) and the circuit components (not shown in the figure) are installed in the operating handle 200. The liquid path components are used to realize the liquid inlet and outlet in the scope 100 to meet the needs of the operation process. The circuit components are used to control the camera, light source and other devices at the distal end of the scope 100, and control the flow rate, flow and other parameters of the liquid flowing through the liquid path components, so as to realize the purpose of observing the local fine tissue and aspirating the liquid in the body.

[0057] When performing the operation, the scope 100 needs to enter the body, and the operating handle 200 needs to be held by the operator, which may contact the surface or internal tissue of the human body. In addition, the liquid entering and exiting the body passes through the liquid path components installed in the operating handle 200, and the circuit components installed in the operating handle 200 need to be connected with the distal end of the scope 100. Therefore, the scope 100 and the operating handle 200 can be used as a disposable part.

[0058] It should be noted that the camera 122 at the distal end of the scope 100 is mainly used to observe the situation of the target site in the body and convert the collected optical signal into a digital signal. In order to obtain the image of the target site in the body, the cooperation of the image processing device 230 is often needed. The image processing device 230 is used to convert the digital signal obtained by the camera 122 into an image signal for the operator (such as a doctor) to observe.

[0059] In this embodiment, the image processing device 230 includes an image processor and a mainboard. The image processor is usually integrated on the mainboard (not shown in the figure), and the mainboard is electrically connected with the camera 122. The mainboard can be electrically connected with an external device (such as a display). The image processor converts the digital signal collected by the camera 122 into an image signal, which is transmitted to the external device through the mainboard, so as to display the image of the target site in the body on the external device, so that the operator can observe a clear enlarged image, which is beneficial to accurately judge the situation of the target site in the body.

[0060] Since the image processor is mainly used for converting the digital signal collected by the camera 122 into an image signal, it does not need to enter the body. Moreover, since the mainboard (including the devices mounted on the mainboard, such as the image processor) is relatively valuable, in order to avoid material waste, the image processing device 230 integrated with the image processor can be separately arranged, the mainboard is electrically connected with the endoscope 10, and the mainboard is fixedly arranged in the image processing device 230, so that the image processing device 230 can be used as a reusable part. Since the scope tube 100 needs to be inserted into the human body, and the liquid path in the operation handle 200 will flow through the body fluid of the human body, in order to avoid cross infection, the scope tube 100 and the operation handle 200 can be used as disposable devices.

[0061] Referring to Figure 2 As shown in the figure, the operation handle 200 of the endoscope 10 can include an operation part 210 and a holding part 220, the scope tube 100 is mounted at one axial end of the operation part 210, the holding part 220 is connected at the other axial end of the operation part 210, and the holding part 220 is detachably connected with the image processing device 230. The purpose of such arrangement is to facilitate disassembly and replacement. Specifically, when the image processing device 230 is connected with the holding part 220, the holding part 220 wraps the end of the image processing device 230, which has good sealing performance.

[0062] The operation part 210 is mainly used for supporting and fixing the scope tube 100, and the operation part 210 can have a mounting cavity (not shown in the figure) for arranging the aforementioned liquid path components and circuit components. Specifically, part of the structure of the operation part 210 and the holding part 220 are mainly used for the operator to hold.

[0063] The holding part 220 can be inclined to the operation part 210, that is, the holding part 220 has an included angle with the axial direction of the operation part 210, so as to meet the angle requirement during operation, avoid the operator from contacting the patient during holding, ensure the comfort of the operator during holding, and meet the spatial requirement of the operator during operation of the endoscope 10, on the basis of ensuring that the scope tube 100 can be inserted into the target part of the body and can be smoothly moved in the corresponding tissue.

[0064] The operation part 210 can be provided with a knob 211, which is used to drive the scope tube 100 to rotate, so as to adjust the orientation of the scope tube 100, facilitate observation of different areas of the target part in the body, more perfect and comprehensive observation of the target part, and improve the operability of the endoscope 10.

[0065] In addition, Figure 1The liquid inlet pipe 201 and the liquid outlet pipe 202 are shown in the operation handle 200, and are part of the aforementioned liquid path component. The liquid inlet pipe 201 and the liquid outlet pipe 202 both extend into the operation part 210 and are in communication with the scope tube 100. The liquid inlet pipe 201 is used to deliver liquid into the scope tube 100, so that the liquid enters the target site in the body through the scope tube 100. The liquid outlet pipe 202 is used to discharge the liquid in the scope tube 100, so that the liquid flowing back to the scope tube 100 from the body is discharged outside the endoscope 10 through the liquid outlet pipe 202.

[0066] Taking the hysteroscope as an example, the liquid inlet pipe 201 can be used to deliver uterine distension liquid into the scope tube 100. The uterine distension liquid is sprayed from the distal end of the scope tube 100 into the uterine cavity. The uterine distension liquid in the uterine cavity can also flow back into the scope tube 100. The uterine distension liquid flowing back into the scope tube 100 is discharged through the liquid outlet pipe 202.

[0067] Referring to Figure 1 In this embodiment, the liquid inlet pipe 201 and the liquid outlet pipe 202 in the operation part 210 can extend into the holding part 220, and the liquid inlet pipe 201 and the liquid outlet pipe 202 can extend along the inner wall surface of the holding part 220 and extend out of the opening at the bottom end of the holding part 220. In other embodiments, the liquid inlet pipe 201 and the liquid outlet pipe 202 can directly extend out of the endoscope 10 from the operation part 210, and this embodiment is not limited in this regard.

[0068] The scope tube 100 of the endoscope 10 is described in detail below.

[0069] In this embodiment, referring to Figure 3 The scope tube 100 includes a scope tube body 110 and a scope tube tip 120. The scope tube tip 120 is mounted at the distal end of the scope tube body 110.

[0070] Specifically, in this embodiment, the scope tube body 110 and the scope tube tip 120 are manufactured separately in two parts, which reduces the manufacturing difficulty of the scope tube 100 and saves the manufacturing cost of the scope tube 100. For example, the scope tube tip 120 and the scope tube body 110 can be connected by threads, buckles, plug-in connections, and silicone sleeve connections, and the embodiments of the present application are not limited in this regard.

[0071] Referring to Figure 3As shown, in the embodiment, the distal end of the mirror tube 100 is bent to the side of the mirror tube 100, and the mirror tube 100 comprises a main body segment 100a and a curved segment 100b arranged in sequence from the proximal end of the mirror tube 100 to the distal end of the mirror tube 100. The main body segment 100a serves as the main body structure of the mirror tube 100 and occupies most of the length of the mirror tube 100. The mirror tube 100 can extend into the target site in the body mainly by relying on the length provided by the main body segment 100a. The curved segment 100b is located on the side of the main body segment 100a away from the operating part 210, and the curved segment 100b makes the mirror tube 100 have a curved distal end.

[0072] Specifically, the mirror tube 100 can have two structures: the first structure is that the mirror tube main body 110 has the main body segment 100a and the curved segment 100b, and the mirror tube tip 120 is arranged at the end of the curved segment 100b away from the main body segment 100a; the second structure is that the mirror tube main body 110 is the main body segment 100a, and the mirror tube tip 120 is the curved segment 100b. In the embodiment, the mirror tube 100 is taken as the second structure for illustration.

[0073] The main body segment 100a of the mirror tube 100 can extend along a straight line, and the extension direction of the main body segment 100a can be parallel to the axial direction of the operating part 210 of the operating handle 200, for example, the main body segment 100a can be coaxially arranged with the operating part 210. The curved segment 100b has an included angle with the main body segment 100a, so that the mirror tube 100 has a curved distal end.

[0074] By making the mirror tube 100 have a curved distal end, on the one hand, the mirror tube 100 can adapt to different structures of the cavity in the body to increase the application range of the endoscope 10. Taking the endoscope 10 as a uterine cavity scope for example, the curved distal end of the mirror tube 100 can better match the structure of the position where the cervix meets the vagina.

[0075] On the other hand, the activity range of the curved segment 100b is increased. When the mirror tube 100 is rotated, the curved segment 100b has a larger area of the circumferential surface that rotates. For the camera 122 installed at the end of the curved segment 100b, the field of view range of the camera 122 is increased, the orientation of the camera 122 can be adjusted according to the needs, which is beneficial to comprehensive and perfect observation of the condition of the target site.

[0076] The included angle between the curved segment 100b and the main body segment 100a of the mirror tube 100 can be between 150°-175°, in other words, the curved segment 100b can be slightly inclined to the main body segment 100a, for example, the included angle between the curved segment 100b and the main body segment 100a can be 155°, 160°, 165°, 170°, etc. The length of the curved segment 100b can be between 10mm-35mm, for example, the length of the curved segment 100b can be 15mm, 20mm, 25mm, etc.

[0077] By slightly inclining the bending section 100b to the main body section 100a and controlling the length of the bending section 100b within a proper range, it is ensured that the field of view range of the camera 122 can cover the working range of the surgical instrument after the surgical instrument is extended. If the inclination degree of the bending section 100b is too large and the optical axis direction of the camera 122 is not in the axial direction of the main body section 100a, for example, the optical axis direction of the camera 122 is parallel to the inclination direction of the bending section 100b, it can cause that the working of the instrument cannot be observed in the field of view range of the camera 122. In addition, if the length of the bending section 100b is too long, even if the optical axis direction of the camera 122 is in the axial direction of the main body section 100a, there is a possibility that the camera 122 cannot see the working position of the instrument.

[0078] The main body section 100a and the bending section 100b of the mirror tube 100 can be arc-shaped transitioned, so that the entire outer wall surface of the mirror tube 100 is in a smooth state, avoiding the appearance of sharp protrusions, so as to prevent the user from being uncomfortable when the mirror tube 100 is inserted into the body, and also avoid the stress concentration phenomenon of the mirror tube 100, so as to ensure the structural strength and reliability of the mirror tube 100.

[0079] In addition, in the embodiment, the outer diameters of each part of the mirror tube 100 in the length direction can be kept substantially the same, so that the consistency of the whole mirror tube 100 is good, the bending section 100b of the mirror tube 100 also maintains sufficient cross-sectional area, which helps to improve the structural strength of the mirror tube 100, and the local stress concentration phenomenon of the mirror tube 100 does not occur. In addition, the mirror tube 100 can match different tissues and cavities in the body, and the applicability of the mirror tube 100 is higher.

[0080] As an optional embodiment, the material of the mirror tube 100 is titanium alloy, and the purpose of the setting is that the titanium alloy has high strength and corrosion resistance, and good biocompatibility, which is suitable for the working environment of the endoscope 10.

[0081] The following is a detailed description of the mirror tube end head 120 in the embodiment.

[0082] In the embodiment, the mirror tube end head 120 is arranged at the distal end of the mirror tube body 110, the mirror tube body 110 includes an inner tube 111 and an outer tube 112, the outer tube 112 is sleeved outside the inner tube 111, and the inner wall surface of one side of the outer tube 112 abuts against the outer wall surface of the inner tube 111. There is a gap between the inner wall surface of the other side of the outer tube 112 and the outer wall surface of the outer tube 112, so as to form an annular channel 113.

[0083] Specifically, the cross-sectional shape of the inner tube 111 can be oval, as shown in Figure 5As shown, the purpose of such arrangement is to provide sufficient space for the surgical instrument to pass through, and when the surgical instrument is inserted, there is a larger gap around the surgical instrument for fluid flow.

[0084] As another alternative embodiment, the inner tube 111 has a pear-shaped cross section, as shown in FIG. 2B. Figure 6 As shown, specifically, the opposite ends of the cross section of the inner tube 111 are respectively provided with a large-diameter arc segment and a small-diameter arc segment, and the two arc segments are in communication with each other to increase the fluid flow space, so that the surgical instrument and the fluid can smoothly pass through the inner tube 111.

[0085] In some possible implementations, the cross section of the inner tube 111 is circular, which is more suitable for most instruments to pass through, and the circular shape has better symmetry, reducing the friction and resistance of the instrument when passing through the inner tube 111, and improving the operation efficiency.

[0086] In this embodiment, refer to Figures 7 to 8 As shown, the mirror tube tip 120 includes a tip body 121, the tip body 121 has a first channel 1211 and a second channel 1212, the first channel 1211 is used to communicate with the annulus channel 113, and the second channel 1212 is used to communicate with the inner tube 111, wherein the flow guide hole 1213 is in communication with the first channel 1211.

[0087] In this embodiment, one of the inner tube 111 and the outer tube 112 (annulus channel 113) can be used as a liquid inlet channel, and the other can be used as a liquid outlet channel, the liquid inlet channel is in communication with the liquid inlet pipe 201 in the operating handle 200, and the liquid outlet channel is in communication with the liquid outlet pipe 202 in the operating handle 200. Wherein, the liquid enters the liquid inlet channel of the mirror tube 100 from the liquid inlet pipe 201, the liquid in the liquid inlet channel flows out from the flow guide hole 1213 in communication with the first channel 1211 at the distal end of the mirror tube 100, and enters the target site in the body; the liquid in the body flows to the liquid outlet channel of the mirror tube 100 through the inner tube 111 at the distal end of the mirror tube 100, and then flows out of the endoscope 10 from the liquid outlet pipe 202. It should be noted that the outer tube 112 has a support portion 112a, which has different forms to enclose different first channel 1211 structures with the tip body 121. The following will be described in combination with different embodiments.

[0088] In some possible implementations, the support portion 112a is a circular plane, at this time, the first channel 1211 is formed by the structure of the mirror tube tip 120 itself, and the purpose of such arrangement is to facilitate operation and facilitate disassembly.

[0089] In another possible implementation, refer to Figure 8As shown, the support part 112a is a semicircular arc structure extending in the first direction, wherein the first direction is the "X" direction in Figure 8 . A part of the structure of the end head body 121 is covered on the inner surface of the semicircular arc structure, so that the end head body 121 and the outer tube 112 enclose the first channel 1211. The purpose of this arrangement is to improve the strength of the mirror tube end head 120 and ensure the smoothness of the liquid flow.

[0090] It can be understood that the shape of the support part 112a is not limited and can be selected according to actual conditions, as long as it can form the structure of the first channel 1211. In this embodiment, the support part 112a is taken as a semicircular arc structure for illustration.

[0091] In this embodiment, continuing to refer to Figure 7 and Figure 8 , the first channel 1211 is provided with a first mounting groove 1214, a second mounting groove 1215 and a flow guide hole 1213 away from the front end of the mirror tube body 110. The flow guide hole 1213 and the first mounting groove 1214 both extend to the front end surface of the end head body 121, and the second mounting groove 1215 is arranged on the outer periphery of the first mounting groove 1214. In this way, the front end surface of the mirror tube end head 120 is divided into multiple independent mounting areas, which are used to mount accessories with different functions respectively. This can optimize the arrangement of the accessories and prevent interference between the components, thereby facilitating the installation of the components.

[0092] Specifically, the shapes of the first mounting groove 1214 and the second mounting groove 1215 match the shapes of the accessories arranged in the front end surface of the mirror tube end head 120, so as to limit the positions and fix the accessories.

[0093] In this embodiment, continuing to refer to Figure 7 and Figure 8 , the mirror tube end head 120 further comprises a camera 122 and a light source 123. Specifically, the camera 122 is arranged in the first mounting groove 1214, and the light source 123 is arranged in the second mounting groove 1215. The light source 123 can provide illumination for the camera 122 in a relatively dark light condition.

[0094] For example, the number of light sources 123 can be multiple and arranged at intervals on the outer periphery of the camera 122, or the number of light sources 123 can be one and arranged around the outer periphery of the camera 122. This embodiment does not limit this.

[0095] In some possible implementations, referring to Figure 8 , the second mounting groove 1215 also extends to the front end surface of the end head body 121. At this time, the light emitting surface of the light source 123 is located on the front end surface of the end head body 121, and the light source 123 emits light towards the front of the end head body 121.

[0096] In some possible implementation manners, the second mounting groove 1215 can also extend to the outer side wall of the end body 121, and the light emitting surface of the light source 123 is located on the outer side wall of the end body 121, and the light source 123 emits light towards the front side of the end body 121.

[0097] In some possible implementation manners, the light source 123 is completely accommodated in the second mounting groove 1215, and the camera 122 protrudes from the light source 123 along the extension direction of the camera 122. In this way, the light source 123 can be prevented from being too high, so that the light is not reversed into the camera 122, thereby interfering with the imaging signal and affecting the image quality.

[0098] Specifically, the light emitting surface of the light source 123 can be recessed from the front end surface of the end body 121, or the light receiving surface of the camera 122 can protrude from the front end surface of the end body 121, which is not limited in the embodiment as long as the light can be prevented from entering the camera 122.

[0099] In the embodiment, the light source 123 and the second mounting groove 1215 are matched in shape, and the light source 123 is clamped in the second mounting groove 1215 to fix the position of the light source 123, so that the light source 123 is prevented from falling off due to poor fixation and interfering with the imaging signal.

[0100] For example, the light source 123 can be a fluorescent lamp, an LED lamp, a halogen lamp, or a functional lamp such as an ultraviolet lamp or an infrared lamp. The embodiment is described by taking the LED lamp as an example.

[0101] In some possible implementation manners, continuing to refer to Figure 8 As shown in the figure, the camera 122 includes a lens barrel 1221, a lens 1222, a circuit board 1223, and a sensor 1224. The lens barrel 1221 is provided with a separation portion 1221a along the extension direction of the lens barrel 1221, so as to separate the lens barrel 1221 into two independent front and rear areas to realize different functions.

[0102] Specifically, the lens 1222 is arranged in the lens barrel 1221 and located at the front side of the lens barrel 1221, so as to focus light on the sensor 1224. The circuit board 1223 and the sensor 1224 are located at the rear side of the lens barrel 1221, so as to convert the received light signal into an electric signal and finally generate an image to be transmitted to other devices.

[0103] The circuit board 1223 is further connected with the light source 123, so as to control the brightness, color temperature and switching state of the light source 123 to provide the best lighting effect. Specifically, the circuit board 1223 is further provided with a communication interface connected with an external device, so as to facilitate connection with an external display and the like and improve the convenience of operation.

[0104] In this embodiment, the position of the lens barrel 1221 is reasonably arranged in combination with the actual spatial structure of the end head body 121. Specifically, when the internal space of the end head body 121 is small, the front end of the lens barrel 1221 can protrude from the front end surface of the end head body 121 to reduce the space occupancy. In addition, the lens 1222 and the light source 123 can be protected from direct contact and damage. Moreover, the protruding lens barrel 1221 can provide a better field of view, reduce the obstruction of the end head body 121 to the field of view, and prevent the light emitted by the light source 123 from being reflected back into the lens 1222 due to the high position of the light source 123, thereby interfering with the imaging signal and affecting the imaging quality.

[0105] In some possible implementation manners, when the internal space of the end head body 121 is large, the front end of the lens barrel 1221 can be flush with the front end surface of the end head body 121. In this way, the friction and damage of the device to the human tissue during insertion and operation can be reduced, the safety of the operation can be improved, the postoperative complications and the discomfort of the patient can be reduced, and the disinfection and cleaning are facilitated.

[0106] In some possible implementation manners, the flow guide hole 1213 is located on the upper side of the first mounting groove 1214, and the number of the second mounting grooves 1215 is two. The two second mounting grooves 1215 are respectively located on the left and right sides of the first mounting groove 1214, as shown in Figure 4 .

[0107] In this embodiment, the positions of the accessories inside the end head body 121 are reasonably arranged in combination with the actual area of the front end surface of the end head body 121. Specifically, the flow guide hole 1213 can be arranged on the upper side of the first mounting groove 1214. In this way, the flow guide hole 1213 can be prevented from directly contacting the heating component, and the field of view of the lens 1222 can be prevented from being blocked, so that the doctor can directly and clearly observe the target area of the human body during the operation. In addition, the flow guide hole 1213 is arranged on the upper side of the first mounting groove 1214 to more effectively guide the flow of liquid.

[0108] In some possible implementation manners, the second mounting groove 1215 is in communication with the first mounting groove 1214. The camera 122 and the light source 123 can be installed together inside the end head body 121 to simplify the installation steps and reduce the installation difficulty. Moreover, the overall volume and weight of the lens tube end head 120 can be reduced, so that the lens tube end head 120 is more compact and portable.

[0109] In some possible implementation manners, the camera 122 is in interference fit with the first mounting groove 1214, and the light source 123 is in interference fit with the second mounting groove 1215. In this way, the stability of the camera 122 and the light source 123 can be improved, and the camera 122 and the light source 123 are prevented from loosening and falling off during the operation, thereby affecting subsequent operations and improving the safety of the operation.

[0110] Specifically, the end body 121 is made of wear-resistant material. In this way, the gap between the camera 122 and the first mounting groove 1214 and the gap between the light source 123 and the second mounting groove 1215 caused by excessive wear during long-term use of the mirror tube end 120 can be avoided, so that the camera 122 and the light source 123 are prevented from loosening and falling off.

[0111] Specifically, the wear-resistant material can be cemented carbide, alloy steel, or the like, and the embodiment is not limited in this regard.

[0112] In some possible implementation manners, the camera 122 is bonded in the first mounting groove 1214 by means of a light-transmitting adhesive, and the light source 123 is bonded in the second mounting groove 1215 by means of a light-transmitting adhesive.

[0113] In this embodiment, the camera 122 and the light source 123 are encapsulated in the first mounting groove 1214 and the second mounting groove 1215, respectively, by means of a glue-filling process. The glue-filling processes of the camera 122 and the light source 123 are the same, and the glue-filling process of the light source 123 is taken as an example for description. The specific glue-filling steps are as follows: first, the light source 123 is placed in the second mounting groove 1215, and then glue is filled into the second mounting groove 1215 from the front end of the lens 1222, so as to fix and seal the light source 123.

[0114] In this embodiment, the type of the glue is light-transmitting glue. In this way, the light-transmitting effect can be achieved, and the glue is prevented from adhering to the surface of the light source 123 during the glue-filling process, thereby affecting the lighting effect and adversely affecting the operation process. Specifically, the glue should also have sufficient bonding strength to firmly fix the camera 122 and the light source 123.

[0115] Specifically, the glue can be epoxy resin glue, polyurethane glue, silicone glue, hot melt glue, or the like, and the embodiment is not limited in this regard.

[0116] As an optional implementation manner, refer to Figure 9 and Figure 10As shown, a holder 124 is further arranged inside the first channel 1211, and the holder 124 is used to fix the camera 122 and the light source 123, so as to prevent the camera 122 and the light source 123 from shaking during operation. Specifically, the holder 124 includes a camera mounting portion 1241, and the camera mounting portion 1241 has a camera mounting opening 1242, wherein the camera mounting opening 1242 has an opening circular arc along a third direction, and the third direction is the "Z" direction in the figure. Figure 10 The camera 122 is clamped in the camera mounting opening 1242.

[0117] In the embodiment, the holder 124 further includes a light source mounting portion 1243, the light source mounting portion 1243 is connected to the outer side of the camera mounting portion 1241, and the light source 123 is mounted between the inner side wall of the light source mounting portion 1243 and the outer side wall of the camera mounting portion 1241, as shown in Figure 9 and Figure 10 .

[0118] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0119] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0120] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A scope tip for mounting to a distal end of a scope body (110), the scope body (110) comprising an inner tube (111) and an outer tube (112) sheathed over the inner tube (111), the inner tube (111) and the outer tube (112) having an annulus channel (113) therebetween, characterized in that, The mirror tube end head (120) comprises: an end head body (121) having a first channel (1211) for communicating with the annular channel (113); the first channel (1211) is provided with a flow guide hole (1213), a first mounting groove (1214) and at least one second mounting groove (1215) at the front end of the end head body (121); the flow guide hole (1213) and the first mounting groove (1214) both extend to the front end face of the end head body (121); the second mounting groove (1215) is arranged at the outer periphery of the first mounting groove (1214); the flow guide hole (1213) communicates with the first channel (1211); a camera (122) arranged in the first mounting groove (1214); at least one light source (123) arranged in the corresponding second mounting groove (1215).

2. The mirror tube tip of claim 1, wherein, The second mounting groove (1215) also extends to the front end face of the end head body (121).

3. The mirror tube tip of claim 2, wherein, The light source (123) is completely accommodated in the second mounting groove (1215), and the camera (122) protrudes from the light source (123) along the extension direction of the camera (122).

4. The mirror tube tip of claim 3, wherein, The camera (122) comprises: a lens barrel (1221); a lens (1222) arranged in the lens barrel (1221) and located at the front side of the lens barrel (1221); a circuit board (1223) connected to the lens barrel (1221) and located at the rear side of the lens barrel (1221); wherein the front end of the lens barrel (1221) protrudes from the front end face of the end head body (121), or the front end of the lens barrel (1221) is flush with the front end face of the end head body (121).

5. The mirror tube end according to any one of claims 1-4, wherein, The flow guide hole (1213) is located on the upper side of the first mounting groove (1214), and the number of the second mounting grooves (1215) is two, and the two second mounting grooves (1215) are respectively located on the left and right sides of the first mounting groove (1214).

6. The mirror tube end according to any one of claims 1-4, wherein, The second mounting groove (1215) communicates with the first mounting groove (1214).

7. The mirror tube tip of claim 6, wherein, The camera (122) is in interference fit with the first mounting groove (1214), and the light source (123) is in interference fit with the second mounting groove (1215).

8. The mirror tube end according to any one of claims 1-4, wherein, The camera (122) is adhered in the first mounting groove (1214) by a light-transmitting adhesive, and the light source (123) is adhered in the second mounting groove (1215) by a light-transmitting adhesive.

9. The mirror tube end according to any one of claims 1-4, wherein, The end head body (121) further has a second channel (1212) for communicating with the inner tube (111).

10. A mirror tube, characterized by A mirror tube (100) comprising a mirror tube body (110) and the mirror tube end head (120) according to any one of claims 1-9, wherein the mirror tube end head (120) is mounted at the distal end of the mirror tube body (110).

11. The mirror tube of claim 10, wherein, The mirror tube body (110) comprises an inner tube (111) and an outer tube (112), the outer tube (112) is sleeved outside the inner tube (111), and an annular channel (113) is formed between the inner tube (111) and the outer tube (112). The cross-sectional shape of the inner tube (111) comprises one of a circle, an ellipse and a pear shape.

12. An endoscope, characterized by The mirror tube (100) of claim 10 or 11 is mounted at a proximal end of an operating handle (200), and a distal end of the mirror tube (100) extends away from the operating handle (200).

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