Endoscope tip, endoscope, and endoscope system

Abstract

The utility model provides a front end part of an endoscope, the endoscope and an endoscope system. The endoscope system comprises image processing equipment, light source equipment and the endoscope, the endoscope comprises a connecting part, an operating part and an inserting part, wherein the inserting part comprises a front end part; the front end part comprises a main body and a rotating shaft arranged in the main body, the side surface of the main body is provided with an assembly port for dismounting the rotating shaft, and the end surface of the rotating shaft facing the assembly port is concavely provided with a threaded hole. The threaded hole is concavely formed in the end face, facing the assembly opening, of the rotating shaft, so that the rotating shaft can be disassembled and assembled through a large-size special tool, disassembly and assembly are convenient, and the disassembly and assembly efficiency is high. Meanwhile, due to the fact that the threads have large transmission force, resistance can be overcome, and the rotating shaft can be rapidly disassembled.

Description

Technical Field

[0001] This application belongs to the field of medical device technology, and more specifically, relates to the front end of an endoscope, the endoscope, and the endoscope system. Background Technology

[0002] In clinical practice, endoscopes are commonly used to examine patients in order to obtain high-resolution images of pathological sites or extract tissue from pathological sites for clinical diagnosis through techniques such as optical imaging and ultrasound detection. An endoscope mainly consists of a connecting section, an operating section, and an insertion section. The connecting section is mainly used to connect with external light source devices, ultrasound processing units, etc.; the operating section is mainly used to control the extension and retraction of instruments and the bending of the insertion section; and the insertion section is used to insert the endoscope into the human body for examination.

[0003] With the increasing demand for smaller insertion diameters, the density of the insertion head's front end is becoming higher and higher. The front end typically supports the clamp lifter via a pivot, with a side opening at the front end for easy assembly and disassembly of the pivot. Due to the small size of the side opening and the extremely small cross-sectional dimensions of the pivot (on the millimeter scale), assembling and disassembling the pivot is very difficult. Utility Model Content

[0004] The purpose of this application is to provide an endoscope tip, an endoscope, and an endoscope system to solve the technical problem of difficult disassembly and assembly of the rotating shaft in the prior art.

[0005] To achieve the above objectives, in a first aspect, the technical solution adopted in this application is: to provide a front end of an endoscope, the front end comprising a main body and a rotating shaft disposed in the main body, the side of the main body having an assembly port for assembling and disassembling the rotating shaft, and the end face of the rotating shaft facing the assembly port having a threaded hole recessed therein.

[0006] In some embodiments, the centerline of the threaded hole coincides with the centerline of the rotating shaft;

[0007] And / or, the centerline of the threaded hole coincides with the centerline of the assembly port;

[0008] And / or, the centerline of the rotating shaft coincides with the centerline of the assembly port.

[0009] In some embodiments, the rotating shaft includes a first connecting segment, a first support segment, and a second connecting segment connected sequentially along its axial direction. The first connecting segment is fixedly connected to a transmission component, the second connecting segment is fixedly connected to a lifting clamp, and the first support segment is rotatably supported on the body. The threaded hole is recessed in the end face of the first connecting segment opposite to the second connecting segment.

[0010] In some embodiments, the threaded hole extends to a predetermined depth within the first connecting segment;

[0011] Alternatively, the threaded hole extends through the first connecting section;

[0012] Alternatively, the threaded hole penetrates the first connecting section and extends to the first support section.

[0013] In some embodiments, a first stepped surface is formed between the first connecting segment and the first supporting segment, and the first stepped surface abuts against the body to restrict the pivot from moving axially inward;

[0014] The assembly port is fitted with a side cover, which is used to restrict the shaft from moving outward along the axial direction.

[0015] In some embodiments, the cross-section of the first connecting segment is polygonal;

[0016] And / or, the cross-section of the second connecting segment is polygonal.

[0017] In some embodiments, the rear end face of the body has a rear port for attaching and detaching the transmission component.

[0018] In some embodiments, the inner circumferential surface of the assembly port is circular or elliptical.

[0019] In some embodiments, before being assembled with the rotating shaft, the transmission member is movably disposed in the body along a first direction, and the transmission member and the inner sidewall of the body have a movable gap along the first direction, the movable gap being greater than the difference in radius between the two axial ends of the rotating shaft along the first direction; the first direction is perpendicular to the axial direction of the rotating shaft.

[0020] Secondly, this application also provides an endoscope, including a connecting part, an operating part, and an insertion part, wherein the insertion part includes the front end portion of the endoscope.

[0021] Thirdly, this application also provides an endoscope system, including an image processing device, a light source device, and the aforementioned endoscope.

[0022] The beneficial effects of the endoscope's front end, the endoscope itself, and the endoscope system provided in this application are as follows: By providing an assembly port for assembling and disassembling the rotating shaft on the side of the main body, and recessing a threaded hole on the end face of the rotating shaft facing the assembly port, a special tool can be inserted into the threaded hole to connect the rotating shaft and the special tool during assembly and disassembly. This allows the rotating shaft to be inserted into the inner cavity of the front end through the assembly port using a larger special tool, and also allows the rotating shaft to be removed from the inner cavity of the front end through the assembly port using a larger special tool, making assembly and disassembly convenient and efficient. Furthermore, because threads have small structural features and transmit large pushing and pulling forces and torques, threaded holes can be formed in rotating shafts with very small cross-sectional dimensions, and the threaded holes can achieve a large transmission pushing and pulling force between the rotating shaft and the special tool, thereby facilitating rapid assembly and disassembly of the rotating shaft. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This application provides a schematic diagram of the endoscope's structure in its embodiments;

[0025] Figure 2 A three-dimensional structural diagram of the front end portion of an endoscope provided in an embodiment of this application;

[0026] Figure 3 This is a schematic diagram of another side structure of the anterior endpiece provided in an embodiment of this application;

[0027] Figure 4 This is a schematic diagram of the AA cross-sectional structure of the front end of the endoscope provided in the embodiments of this application;

[0028] Figure 5 This is an assembly diagram of the rotating shaft, lifting clamp, and transmission components in an endoscope provided in an embodiment of this application.

[0029] Figure 6 This is a schematic diagram of the structure of the rotating shaft in the endoscope provided in the embodiments of this application;

[0030] Figure 7 This is a schematic diagram of the transmission component in an endoscope provided in an embodiment of this application;

[0031] Figure 8 This is a schematic diagram illustrating the basic principle of an endoscope system.

[0032] The following are the labeling elements in the figure:

[0033] 1. Insertion part; 100. Front end part; 110. Main body; 111. Assembly port; 112. Rear port; 113. First cavity; 114. Second cavity; 115. First support hole; 116. Second support hole; 120. Rotating shaft; 121. First connecting section; 122. First support section; 123. Second connecting section; 124. Second support section; 125. Threaded hole; 126. First stepped surface; 127. Second stepped surface; 130. Lifting clamp; 131. Rotating part; 132. Lifting part; 140. Transmission component; 141. First mating hole; 142. Mounting hole; 150. Side cover; 160. Sealing ring; 170. Rear cover; 180. Movement gap; 200. Bending part; 300. Flexible part; 2. Operating part; 3. Connecting part; 4. Wire rope; X, First direction. Detailed Implementation

[0034] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0035] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0036] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0038] Please refer to Figure 8The endoscope system may include: a light source device 101, an endoscope 102 (or endoscope body), an image processing device 103, and a display 104. The following describes each device in turn:

[0039] For light source device 101:

[0040] The light source device 101 may include a light source component and optical elements. The light source component generates a light beam of a specific wavelength. The number of light source components can be one or more, for example, one, two, three, four, five, or six. The type of light source component can be an LED light source or a laser light source, etc. The optical elements may include one or more lenses, such as, but not limited to, collimating lenses and condensing lenses. The optical elements can be used to collimate, filter, and combine the light beam emitted by the light source component to achieve a combined output of a light beam of a desired specific wavelength band.

[0041] After the light source device 101 and the endoscope 102 are successfully connected through their respective connecting parts, the light source device 101 can be used to direct the combined light beam (light) onto the end face of the light guide of the endoscope 102, so that the light beam is emitted from the tip of the endoscope 102, providing illumination for the endoscope 102. For example, when using the endoscope 102 to perform a digestive tract examination, the light source device 101 directs light into the endoscope 102, which is then transmitted through the light guide inside the endoscope 102, and the light is irradiated onto the digestive tract area being observed through the illumination window at the tip of the endoscope 102, thus achieving effective illumination of the digestive tract area.

[0042] Regarding endoscope 102:

[0043] The endoscope 102 may include a connecting part, a flexible tube, an operating part, and an elongated insertion part. The connecting part connects to the connecting part of the light source device 101, and the flexible tube contains a light-guiding medium (such as an optical fiber) to transmit light. The light-guiding medium runs through the flexible tube, the operating part, and the insertion part. The operating part includes multiple control knobs or buttons to control the movement of the insertion part. The insertion part includes an insertion tube, a bending part, and a head end. The head end has an illumination window for mounting an illumination module, an imaging window for mounting an imaging module, and an instrument channel window for instrument use. More specifically, the illumination module includes a light-guiding medium and an illumination lens group. The illumination lens group is used to emit the light transmitted by the light-guiding medium at a preset appropriate divergence angle to create a better illumination environment. The imaging module includes an imaging lens group and an image sensor (camera element). The imaging lens group contains multiple lenses, and a cable is located after the image sensor, running through the entire endoscope 102 to transmit uplink image data and downlink command data.

[0044] Endoscopes can be categorized into fixed-focus endoscopes and variable-focus endoscopes (such as bifocal endoscopes and magnifying endoscopes) based on whether they include a zoom function. When endoscope 102 is a fixed-focus endoscope, the spatial positions of the multiple lenses within the imaging lens group are relatively fixed, resulting in a fixed focal length for the entire imaging lens group. When endoscope 102 is a variable-focus endoscope, at least one of the multiple lenses within the imaging lens group is a movable lens, which can move relative to the other lenses, thereby making the focal length of the entire imaging lens group variable.

[0045] For image processing device 103:

[0046] Image processing device 103 is a dedicated processing device specifically designed for endoscope systems. Image processing device 103 can perform image processing on images acquired by endoscope 102 and send the processing results to display 104. Simultaneously, image processing device 103 can also perform image analysis to achieve certain preset functions. For example, in some optional embodiments, image processing device 103 can perform image enhancement processing, physiological part recognition, and other processing. The specific image analysis functions supported by image processing device 103 are not limited here and can be determined according to the actual application.

[0047] In some embodiments, the image processing device 103 and the light source device 101 can be an integrated device (all-in-one machine), that is, a single device has the functions of both the image processing device 103 and the light source device 101.

[0048] For monitor 104:

[0049] Display 104 can be a liquid crystal display (LCD), a light-emitting diode (LED) display, a VR headset, or other display with display capabilities. Display 104 can display the image processing results provided by image processing device 103. In some examples, display 104 can display in real time the images captured by the imaging module of endoscope 102, as well as the recognition results (such as lesion recognition) of the images by image processing device 103. In other examples, display 104 can also display a three-dimensional model obtained by image processing device 103 based on the image for three-dimensional reconstruction.

[0050] The following describes the workflow of endoscopic systems in common clinical scenarios:

[0051] During a patient examination, medical personnel (i.e., the user) first connect and start the various devices of the endoscope system, then insert the insertion part into the patient's body. At this time, the light source device 101 shines light into the endoscope 102, which is then emitted from the illumination window at the tip of the endoscope 102 onto the physiological part inside the patient's body containing the object to be measured. After being illuminated by the light, the physiological part reflects the illuminated light into the imaging module at the tip. The imaging module generates an image of the physiological part based on the received reflected light and transmits the image to the light source device 101 via a cable. The light source device 101 then transmits the image to the image processing device 103. Finally, the image processing device 103 processes the image and sends it to the display 104 for output display.

[0052] It should also be noted that, Figure 1 This does not constitute a limitation on the endoscope system. In practical applications, the endoscope system may include more or fewer components than illustrated, or combine certain components, or use different components. For example, the endoscope system may also include a trolley, accessory devices (such as a carbon dioxide pump), and AI processing devices (such as an AI host or remote server) specifically for executing artificial intelligence (AI) algorithms, etc., which can be determined according to the actual application. This application does not impose any restrictions on this. In addition, the connection relationships between the various devices may also vary. For example, in some optional embodiments, the endoscope 102 may be communicatively connected to the image processing device 103. In other optional embodiments, when the endoscope system includes an AI processing device, the AI ​​processing device can be placed between the image processing device 103 and the display 104, thereby enabling secondary processing and re-display of the image output by the image processing device 103. Correspondingly, depending on the different connection relationships, the data transmission path of the endoscope 102 will also have adaptive differences, which will not be elaborated here.

[0053] In clinical practice, endoscopes are commonly used to examine patients in order to obtain high-resolution images of pathological sites or extract tissue from pathological sites for clinical diagnosis through techniques such as optical imaging and ultrasound detection. An endoscope mainly consists of a connecting section, an operating section, and an insertion section. The connecting section is mainly used to connect with external light source devices, ultrasound processing units, etc.; the operating section is mainly used to control the extension and retraction of instruments and the bending of the insertion section; and the insertion section is used to insert the endoscope into the human body for examination.

[0054] The front end of the insertion section generally includes a main body, a rotating shaft, a lifting forceps, and a transmission component. The transmission component and the lifting forceps are respectively mounted on the rotating shaft. The transmission component is connected to the control mechanism in the operating section through a steel wire. The control mechanism drives the transmission component to rotate through a steel wire rope, thereby driving the rotating shaft and the lifting forceps to rotate. The rotation of the lifting forceps changes the direction in which the biopsy forceps and lithotripsy baskets, etc., inserted through the insertion cannula, extend from the insertion cannula opening.

[0055] However, with the increasing demand for smaller diameter inserts, the density of insert front end configurations is becoming higher and higher. The front end typically uses a side opening to allow for the assembly and disassembly of the shaft. Due to the small size of the side opening and the fact that the removable part of the shaft is located inside the cavity at the front end, the cross-sectional size of the shaft is also very small, on the millimeter level. This makes it difficult to design complex assembly and disassembly mechanisms, resulting in significant difficulties in the maintenance and disassembly of the shaft.

[0056] Therefore, this application provides an endoscope front end portion 100, an endoscope, and an endoscope system. By forming a threaded hole 125 in the end face of the rotating shaft 120 facing the assembly port 111, when the rotating shaft 120 is disassembled or assembled, a special tool can be inserted into the threaded hole 125 to form a connection between the rotating shaft 120 and the special tool. Then, the rotating shaft 120 can be inserted into the front end portion 100 or removed from the front end portion 100 by a special tool of a larger size. The disassembly and assembly are convenient and efficient.

[0057] Please see Figures 1 to 4 The front end portion 100 of the endoscope provided in the embodiments of this application will now be described in detail.

[0058] The front end portion 100 includes a main body 110 and a rotating shaft 120 disposed in the main body 110. The side of the main body 110 has an assembly port 111 for assembling and disassembling the rotating shaft 120. The end face of the rotating shaft 120 facing the assembly port 111 is recessed with a threaded hole 125.

[0059] The rotating shaft 120 can be rotatably disposed within the main body 110 or fixedly disposed relative to the main body 110. The rotating shaft 120 can be used to realize the rotation of the lifting clamp 130 within the main body 110, and the rotating shaft 120 can also be used to realize the rotation of other components within the main body 110.

[0060] The assembly port 111 may be formed on the peripheral side of the main body 110; or, the assembly port 111 may be formed on the rear end face of the main body 110 facing the operation part 2; or, the assembly port 111 may be formed on the front end face of the main body 110 away from the operation part 2.

[0061] The assembly port 111 allows the rotating shaft 120 to be installed and removed, meaning that the rotating shaft 120 can be installed into the inner cavity of the main body 110 through the assembly port 111, and the rotating shaft 120 can also be removed from the inner cavity of the main body 110 through the assembly port 111.

[0062] The front end portion 100 provided in this embodiment has an assembly port 111 for assembling and disassembling the rotating shaft 120 on the side of the main body 110, and a threaded hole 125 is recessed on the end face of the rotating shaft 120 facing the assembly port 111. This allows a special tool to be inserted into the threaded hole 125 to connect the rotating shaft 120 to the special tool during assembly and disassembly. This enables the rotating shaft 120 to be inserted into the inner cavity of the front end portion 100 via the assembly port 111 using a relatively large special tool, and also to be removed from the inner cavity of the front end portion 100 via the assembly port 111 using a relatively large special tool. This makes assembly and disassembly convenient and efficient. Furthermore, because threads have small structural features and transmit large pushing and pulling forces and torques, a threaded hole 125 can be formed in the rotating shaft 120, which has a very small cross-sectional size. The threaded hole 125 can achieve a large transmission pushing and pulling force between the rotating shaft 120 and the special tool, thus facilitating rapid assembly and disassembly of the rotating shaft 120.

[0063] In some embodiments, please refer to Figure 4 The centerline of the threaded hole 125 coincides with the centerline of the rotating shaft 120, meaning the threaded hole 125 is formed at the center of the rotating shaft 120. This allows for a larger threaded hole 125 to be formed without changing the outer diameter of the rotating shaft 120, facilitating the connection between a special tool and the rotating shaft 120. Understandably, in other embodiments of this application, the centerline of the threaded hole 125 may be slightly offset from the centerline of the rotating shaft 120.

[0064] In some embodiments, please refer to Figure 4 The centerline of the threaded hole 125 coincides with the centerline of the assembly port 111. This arrangement allows for accurate and quick insertion of the special tool into the body 110 and then into the threaded hole 125 by aligning the centerline of the special tool with the centerline of the assembly port 111 during the assembly and disassembly of the shaft 120. This improves the assembly efficiency and accuracy of the special tool and the threaded hole 125. Understandably, in other embodiments, the centerline of the assembly port 111 and the centerline of the threaded hole 125 may be slightly offset, as long as the special tool can be inserted into the threaded hole 125 via the assembly port 111.

[0065] In some embodiments, the centerline of the assembly port 111 coincides with the centerline of the rotating shaft 120. This arrangement allows for accurate and quick insertion of the rotating shaft 120 into the main body 110 simply by aligning its centerline with the centerline of the assembly port 111 during assembly and disassembly, thus improving assembly efficiency and accuracy. Understandably, in other embodiments, the centerline of the assembly port 111 and the centerline of the rotating shaft 120 may be slightly offset, as long as the rotating shaft 120 can be inserted into the main body 110 via the assembly port 111.

[0066] In some embodiments, the center line of the threaded hole 125 coincides with the center line of the rotating shaft 120, the center line of the threaded hole 125 coincides with the center line of the mounting port 111, and the center line of the mounting port 111 coincides with the center line of the rotating shaft 120, thus enabling faster assembly and disassembly of the rotating shaft 120.

[0067] In some embodiments, please refer to Figures 4 to 6 The rotating shaft 120 includes a first connecting section 121, a first support section 122, and a second connecting section 123 connected sequentially along its axial direction. A transmission component 140 is fixedly connected to the first connecting section 121, and a forceps lifter 130 is fixedly connected to the second connecting section 123. The first support section 122 is rotatably supported on the main body 110 and forms a rotatable connection with the main body 110. The transmission component 140 is configured to be connected to the control mechanism of the operating unit 2 via a steel wire rope 4. The control mechanism drives the transmission component 140, the rotating shaft 120, and the forceps lifter 130 to rotate within the main body 110 via the steel wire rope 4. The rotation of the forceps lifter 130 changes the direction in which biopsy forceps and lithotripsy baskets, etc., inserted through the insertion cannula, extend from the insertion cannula.

[0068] It should be noted that the clamp 130 is fixed to the rotating shaft 120, meaning that after assembly, the clamp 130 and the rotating shaft 120 can be relatively fixed. Specifically, the clamp 130 and the rotating shaft 120 are fixed circumferentially so that the clamp 130 and the rotating shaft 120 can rotate synchronously, and the clamp 130 and the rotating shaft 120 are fixed axially so that the clamp 130 and the rotating shaft 120 will not move axially. The clamp 130 and the rotating shaft 120 can be disassembled to facilitate the removal of the rotating shaft 120 and the clamp 130 from the main body 110. Furthermore, the fixed connection between the transmission component 140 and the rotating shaft 120 has the same meaning and will not be repeated here.

[0069] In this embodiment, the transmission component 140 and the lifting clamp 130 are rotatably connected via the rotating shaft 120, enabling the transmission component 140 to drive the lifting clamp 130 to rotate within the main body 110. In other embodiments of this application, the rotating shaft 120 may be used for the rotation of other structural components within the main body 110, or the rotating shaft 120 may be a long shaft-like structure fixed within the main body 110; no single limitation is made here.

[0070] In some embodiments, please refer to Figure 4 The first connecting segment 121 is located near the assembly port 111, and the threaded hole 125 is recessed in the end face of the first connecting segment 121 opposite to the second connecting segment 123. A special tool is inserted into the threaded hole 125 from the assembly port 111 through the end face of the first connecting segment 121 to form a threaded connection with the rotating shaft 120.

[0071] In this application, the depth design of the threaded hole 125 is related to the length of the shaft 120. Generally, the longer the shaft 120 is, the longer the threaded hole 125 is, which can ensure the support capacity of the special tool for the shaft 120. In addition, the depth design of the threaded hole 125 is also related to the outer diameter of the shaft 120. The smaller the outer diameter of the shaft 120 is, the smaller the length of the threaded hole 125 is, which can reduce the machining difficulty of the threaded hole 125.

[0072] As an example, the threaded hole 125 extends to a preset depth within the first connecting section 121, that is, the threaded hole 125 is only formed in the first connecting section 121, and the threaded hole 125 does not extend to the first support section 122 and the second connecting section 123.

[0073] As an example, the threaded hole 125 passes through the first connecting section 121, that is, the threaded hole 125 passes through the entire first connecting section 121. The threaded hole 125 may extend to the first support section 122, or the threaded hole 125 may not extend to the first support section 122.

[0074] As an example, please see Figure 4 The threaded hole 125 passes through the first connecting section 121 and extends to the first support section 122. This arrangement ensures that the threaded hole 125 has sufficient length while minimizing its impact on the structural strength of the entire rotating shaft 120 and ensuring the stability of the support between the rotating shaft 120 and the main body 110.

[0075] In some embodiments, please refer to Figure 4 and Figure 6 A first stepped surface 126 is provided between the first connecting section 121 and the first supporting section 122. The first stepped surface 126 abuts against the main body 110 to restrict the rotating shaft 120 from moving inward along the axial direction. A side cover 150 is installed at the assembly port 111. The side cover 150 is used to restrict the rotating shaft 120 from moving outward along the axial direction. Specifically, the side cover 150 is spaced apart from the end face of the first connecting section 121 away from the second connecting section 123 to restrict the rotating shaft 120 from moving outward along the axial direction.

[0076] It should be noted that, moving inward along the axial direction here refers to the rotation shaft 120 moving from the outside to the inside of the main body 110, while moving outward along the axial direction here refers to the rotation shaft 120 moving from the inside of the main body 110 to the outside.

[0077] When assembling the rotating shaft 120, the rotating shaft 120 is inserted into the main body 110 axially through the assembly port 111 until the first step surface 126 abuts against the main body 110. Then, the side cover 150 is installed in the assembly port 111 to restrict the rotating shaft 120 from moving outward, thereby completing the assembly of the rotating shaft 120.

[0078] When disassembling the rotating shaft 120, first remove the side cover 150. The rotating shaft 120 will then be freed from its outward movement restriction, allowing it to be moved outwards and disassembled via the assembly port 111. Of course, during the disassembly process, a special tool needs to be inserted into the threaded hole 125 to pull the rotating shaft 120 outwards.

[0079] This application forms an axial limit on the rotating shaft 120 by the mutual abutment between the rotating shaft 120, the side cover 150 and the main body 110, so that the axial limit on the rotating shaft 120 can be achieved after assembly, and the limit can be released and the rotating shaft 120 can be disassembled by removing the side cover 150. The structure is simple and easy to disassemble and assemble.

[0080] In some embodiments, please refer to Figures 4 to 6 The first support section 122 has a circular cross-section. The main body 110 has a first support hole 115 corresponding to the position of the first support section 122. The first support section 122 is inserted into the first support hole 115, and the first support section 122 and the first support hole 115 form a rotational fit. Here, the cross-section refers to the section perpendicular to the axial direction of the rotating shaft 120.

[0081] In some embodiments, please refer to Figures 4 to 7 The first connecting segment 121 has a polygonal cross-section, and the transmission component 140 has a first mating hole 141, which also has a polygonal cross-section. The first connecting segment 121 is inserted into the first mating hole 141, thereby forming a circumferential fixation between the rotating shaft 120 and the transmission component 140. This means that the rotating shaft 120 and the transmission component 140 can rotate synchronously. Specifically, when the transmission component 140 is driven to rotate by the wire rope 4, it can drive the rotating shaft 120 to rotate together. At the same time, the transmission component 140 is axially limited between the side cover 150 and the main body 110, and the first connecting segment 121 is axially limited between the side cover 150 and the main body 110, thereby forming an axial fixation between the transmission component 140 and the rotating shaft 120. This means that the transmission component 140 and the rotating shaft 120 will not slide relative to each other along the axial direction, thus achieving a fixed connection between the transmission component 140 and the rotating shaft 120. In this embodiment, the axial fixation of the transmission member 140 and the rotating shaft 120 is formed by the contact between the surfaces, thereby facilitating the disassembly of the transmission member 140 and the rotating shaft 120.

[0082] Optionally, both the first connecting segment 121 and the first mating hole 141 have square cross-sections. The square shape not only ensures circumferential fixation between the rotating shaft 120 and the transmission component 140, but also makes the rotating shaft 120 a centrally symmetrical structure, thus guaranteeing the rotational stability of the rotating shaft 120. Of course, in other embodiments, the cross-sections of the first connecting segment 121 and the first mating hole 141 can also be polygons such as regular pentagons or regular hexagons.

[0083] In some embodiments, please refer to Figure 6 and Figure 7 The second connecting section 123 has a polygonal cross-section, and the lifting clamp 130 has a second mating hole (not shown in the figure). The second mating hole also has a polygonal cross-section. The second connecting section 123 is inserted into the second mating hole, thereby forming a circumferential fixation between the rotating shaft 120 and the lifting clamp 130. This means that the rotating shaft 120 and the lifting clamp 130 can rotate synchronously. Specifically, when the rotating shaft 120 rotates, it can drive the lifting clamp 130 to rotate together. At the same time, the lifting clamp 130 is axially limited between the opposite side walls of the main body 110, and the rotating shaft 120 is axially limited between the side cover 150 and the main body 110. This forms an axial fixation between the lifting clamp 130 and the rotating shaft 120, meaning that the lifting clamp 130 and the rotating shaft 120 will not slide relative to each other along the axial direction, thus achieving a fixed connection between the lifting clamp 130 and the rotating shaft 120. In this embodiment, the lifting clamp 130 and the rotating shaft 120 are axially fixed by the contact between the surfaces, thereby facilitating the disassembly of the lifting clamp 130 and the rotating shaft 120.

[0084] Optionally, both the second connecting segment 123 and the second mating hole have square cross-sections. The square shape not only enables circumferential fixation between the rotating shaft 120 and the lifting clamp 130, but also ensures that the rotating shaft 120 has a centrally symmetrical structure, guaranteeing its rotational stability. Of course, in other embodiments, the cross-sections of the second connecting segment 123 and the second mating hole can also be polygons such as regular pentagons or regular hexagons.

[0085] In some embodiments, please refer to Figure 4 The rotating shaft 120 also includes a second support section 124, which is connected to the end of the second connecting section 123 opposite to the first support section 122. The second support section 124 is supported by the main body 110. In this embodiment, the rotating shaft 120 is supported by the first support section 122 and the second support section 124, respectively, thereby ensuring the support stability of the rotating shaft 120 in the main body 110 and ensuring the smooth rotation of the rotating shaft 120, the transmission component 140, and the lifting clamp 130. It can be understood that in other embodiments of this application, the second support section 124 may not be provided to simplify the structure of the rotating shaft 120 and the main body 110 while ensuring the support stability of the rotating shaft 120.

[0086] In some embodiments, please refer to Figure 4The main body 110 has a first cavity 113, a second cavity 114, a first support hole 115, and a second support hole 116. The first cavity 113 and the second cavity 114 are spaced apart along the axial direction of the rotating shaft 120. The first support hole 115 extends axially from the first cavity 113 to the second cavity 114, and the second support hole 116 is formed concavely from the inner sidewall of the second cavity 114. After assembly, the transmission component 140 is assembled in the first cavity 113, the lifting clamp 130 is assembled in the second cavity 114, and the rotating shaft 120 passes through the transmission component 140, the first support hole 115, the lifting clamp 130, and the second support hole 116 in sequence. The assembly port 111 communicates with the first cavity 113, and a side cover 150 is installed at the assembly port 111.

[0087] Specifically, the side cover 150 is sealed to the assembly port 111 by applying adhesive. A sealing ring 160 abuts against the outer peripheral wall of the first support section 122 and the inner peripheral wall of the first support hole 115, thereby sealing the transmission component 140 within the first cavity 113 and preventing corrosion damage. Furthermore, the outer end face of the rotating shaft 120 is flush with the outer end face of the transmission component 140, and the side cover 150 abuts against both the rotating shaft 120 and the transmission component 140 to provide axial positioning for both. Additionally, the first stepped surface 126 of the rotating shaft 120 abuts against the inner wall surface of the first cavity 113 away from the side cover 150 to restrict inward movement of the rotating shaft 120.

[0088] Specifically, the lifting clamp 130 is rotatably disposed in the second cavity 114, which is connected to the outside. Please refer to [link / reference]. Figure 5 The forceps lifter 130 includes a rotating part 131 and a lifting part 132. The rotating part 131 is fixed to the second connecting section 123 of the rotating shaft 120. The lifting part 132 is connected to the rotating part 131 and is used to lift the medical accessory to a preset angle when the rotating part 131 rotates. The two outer sidewalls of the rotating part 131 along the axial direction are respectively clearance-fitted with the two inner sidewalls of the second cavity 114 along the axial direction, thereby not only forming an axial limit for the forceps lifter 130, but also not hindering the rotation of the forceps lifter 130. In addition, a second stepped surface 127 is connected between the first support section 122 and the second connecting section 123. The second stepped surface 127 abuts against the forceps lifter 130 along the axial direction to axially limit the forceps lifter 130 on the rotating shaft 120 for easy installation.

[0089] In some embodiments, please refer to Figure 2 and Figure 4The assembly port 111 is formed on the peripheral side surface of the main body 110, and the rear end face of the main body 110 has a rear port 112 for assembling and disassembling the transmission component 140. It should be noted that the main body 110 is generally cylindrical, the peripheral side surface of the main body 110 refers to the side surface of the main body 110 along a circumferential direction, and the rear end face of the main body 110 refers to the end face of the main body 110 facing the operating part 2. The assembly port 111 is located on the peripheral side surface of the main body 110, and the rear port 112 is located on the rear end face of the main body 110. During assembly and disassembly, the transmission component 140 can be first inserted into the main body 110 through the rear port 112, and then the rotating shaft 120 can be inserted into the main body 110 through the assembly port 111 on the peripheral side surface of the main body 110.

[0090] In this embodiment, by having a rear port 112 on the rear end face of the main body 110 for assembling and disassembling the transmission component 140, that is, the design of the assembly port 111 can be used only for the assembly and disassembly of the rotating shaft 120. This allows the size of the assembly port 111 to only meet the assembly requirements of the rotating shaft 120, thereby reducing the diameter of the assembly port 111. This results in a good sealing effect while minimizing lateral openings and effectively reducing the risk of decontamination. Furthermore, the reduction in the size of the assembly port 111 increases the flushness between the outer surface of the side cover 150 and the outer peripheral surface of the main body 110, making the surface of the front end 100 smoother and reducing discomfort caused by the insertion of the front end 100 into the body cavity.

[0091] In this application, the shape of the assembly port 111 can theoretically be designed arbitrarily, as long as it meets the assembly requirements of the rotating shaft 120. In actual design, in order to achieve sealing and reduce the risk of decontamination, the shape of the assembly port 111 needs to be optimized.

[0092] As an example, please see Figure 3 and Figure 4 The inner circumferential surface of the assembly port 111 is cylindrical, and the outer circumferential surface of the side cover 150 is also cylindrical. This design makes the inner circumferential surface of the assembly port 111 easy to process, and the surface is smooth without square corners. This makes it less likely that the sealing effect will decrease or the risk of cleaning and disinfection will increase due to processing and use.

[0093] As another example, the inner circumferential surface of the assembly port 111 is an elliptical cylinder, and the outer circumferential surface of the side cover 150 is also an elliptical cylinder, without any square corners, which can also reduce the risk of decontamination. Of course, in other embodiments, the first projection of the assembly port 111 can also be a closed curve, a square, or other regular shapes, and is not limited here.

[0094] In some embodiments, during assembly, the transmission component 140 is first inserted into the first cavity 113 from the rear port 112. Then, the rotating shaft 120 is inserted into the first cavity 113 from the assembly port 111, and passes through the first mating hole 141 and the first support hole 115 of the transmission component 140 in sequence. Next, the lifting clamp 130 is inserted into the second cavity 114 and axially confined within the second cavity 114. Then, the rotating shaft 120 continues to pass through the second mating hole of the lifting clamp 130 until it is inserted into the second support hole 116. Finally, the side cover 150 is glued in place. It should be noted that two sealing rings 160 are already installed on the rotating shaft 120 before assembly. Therefore, the assembly of the rotating shaft 120 requires considerable force. The threaded connection between the threaded hole 125 and the special tool ensures that the rotating shaft 120 can be pushed inward with considerable force to achieve assembly.

[0095] It should be noted that a rear cover 170 is installed on the rear port 112, and a steel wire rope 4 is connected to the transmission component 140, with the steel wire rope 4 passing through the rear cover 170. Before assembly, the transmission component 140, the steel wire rope 4, and the rear cover 170 need to be connected. Then, the transmission component 140, the steel wire rope 4, and the rear cover 170 are inserted into the first cavity 113 through the rear port 112, so that the transmission component 140 is axially confined in the first cavity 113, but radially floating in the first cavity 113. The rear cover 170 is sealed in the rear port 112, and the steel wire rope 4 passes through the rear cover 170 to connect with the control mechanism of the operating part 2.

[0096] In some embodiments, please refer to Figure 4 Before being assembled with the rotating shaft 120, the transmission component 140 is movably disposed in the main body 110 along the first direction X. The transmission component 140 and the inner sidewall of the main body 110 have a movable gap 180 along the first direction X. The movable gap 180 is greater than the difference in radius between the two ends of the rotating shaft 120 along the first direction X. The first direction X is perpendicular to the axis of the rotating shaft 120.

[0097] It should be noted that, as Figure 4 As shown, the movable gap 180 refers to the space in which the transmission member 140 can move along the first direction X in the main body 110, which includes the space in which the transmission member 140 can move upward along the first direction X and the space in which the transmission member 140 can move downward along the first direction X.

[0098] During assembly, the transmission component 140 is first installed into the first cavity 113, and the rotating shaft 120 is then inserted into the transmission component 140. In order to avoid the rotating shaft 120 being unable to be smoothly inserted into the transmission component 140 due to machining errors or assembly errors, in this embodiment, the transmission component 140 is movably disposed in the main body 110 along the first direction X, and the movable gap 180 is greater than the difference between the radii of the two ends of the rotating shaft 120 along the first direction X. During assembly, the first direction X is set to vertical. The transmission component 140 is initially supported on the bottom inner wall of the main body 110 (specifically, the bottom inner wall of the first cavity 113). The second support section 124 of the rotating shaft 120 is first inserted into the first mating hole 141 of the transmission component 140. Then, the second connecting section 123, the first support section 122, and the first connecting section 121 are sequentially inserted into the transmission component 140. Since the dimensions of the rotating shaft 120 increase sequentially along the first direction X, the transmission component 140 can be gradually lifted upwards. That is, the transmission component 140 is lifted and limited along the first direction X by the rotating shaft 120. At this time, the distance the transmission component 140 rises is the difference in radius between the two ends of the rotating shaft 120 along the first direction X. The above arrangement allows the transmission component 140 and the rotating shaft 120 to be assembled smoothly without structural interference.

[0099] Specifically, the transmission component 140 also has a mounting hole 142 for connecting the wire rope 4, and the mounting hole 142 and the first mating hole 141 are distributed at intervals along the first direction X.

[0100] Similarly, before the rotating shaft 120 is inserted into the lifting clamp 130, the lifting clamp 130 can also be movably disposed in the second cavity 114 along the first direction X to achieve a good assembly between the rotating shaft 120 and the lifting clamp 130.

[0101] Secondly, please refer to Figure 1 This application also provides an endoscope, including a connecting part 3, an operating part 2, and an insertion part 1. The insertion part 1, the operating part 2, and the connecting part 3 are connected in sequence. The insertion part 1 is used to be inserted into the patient's body, and the operator controls the insertion part 1 to work in the patient's body through the operating part 2.

[0102] The insertion part 1 includes the aforementioned front part 100, bending part 200 and flexible part 300, which are connected in sequence. The flexible part 300 is connected to the operation part 2.

[0103] In addition, the endoscope also includes an imaging component, a light source component, and a tubing component. The imaging component acquires optical images of the lesion site in the human body, while the light source component provides illumination to facilitate image acquisition. The tubing component can supply water and air to the tip of the insertion section 1 for cleaning the light source component and imaging component. It can also be used for cleaning and inflating the human digestive tract, supplying tools to the tip of the insertion section 1 for surgical procedures, or aspirating tissue fluid from the patient. The connecting section 3 facilitates communication between the imaging component and the image processing equipment, provides electrical connection between the light source component and the light source device, and connects the tubing component to water and air sources.

[0104] Thirdly, embodiments of this application also provide an endoscope system, including an image processing device, a light source device, a display, and an endoscope. The endoscope contains an imaging component and a light source component. The light source device provides light to the light source component in the endoscope to ensure that the endoscope can acquire images of lesions in the human body. The image processing device is communicatively connected to the imaging component in the endoscope and receives and processes the optical image information transmitted from the imaging component. The display is communicatively connected to the image processing device and displays the processed optical image for the doctor's observation and operational assistance.

[0105] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. The anterior endpiece (100), characterized in that, The front end (100) includes a main body (110) and a rotating shaft (120) disposed in the main body (110). The side of the main body (110) has an assembly port (111) for assembling and disassembling the rotating shaft (120). The end face of the rotating shaft (120) facing the assembly port (111) is recessed with a threaded hole (125).

2. The anterior endpiece (100) of the endoscope as described in claim 1, characterized in that, The centerline of the threaded hole (125) coincides with the centerline of the rotating shaft (120); And / or, the centerline of the threaded hole (125) coincides with the centerline of the assembly port (111); And / or, the centerline of the rotating shaft (120) coincides with the centerline of the assembly port (111).

3. The anterior endpiece (100) of the endoscope as described in claim 1, characterized in that, The rotating shaft (120) includes a first connecting section (121), a first support section (122), and a second connecting section (123) connected sequentially along its axial direction. The first connecting section (121) is fixedly connected to a transmission component (140), and the second connecting section (123) is fixedly connected to a lifting clamp (130). The first support section (122) is rotatably supported on the main body (110). The threaded hole (125) is recessed on the end face of the first connecting section (121) opposite to the second connecting section (123).

4. The anterior endpiece (100) of the endoscope as described in claim 3, characterized in that, The threaded hole (125) extends to a preset depth within the first connecting section (121); Alternatively, the threaded hole (125) penetrates the first connecting section (121); Alternatively, the threaded hole (125) passes through the first connecting section (121) and extends to the first support section (122).

5. The anterior endpiece (100) of the endoscope as described in claim 3, characterized in that, A first stepped surface (126) is formed between the first connecting section (121) and the first supporting section (122), and the first stepped surface (126) abuts against the main body (110) to restrict the rotating shaft (120) from moving inward along the axial direction; The assembly port (111) is fitted with a side cover (150), which is used to restrict the axial outward movement of the rotating shaft (120).

6. The anterior endpiece (100) of the endoscope as described in claim 3, characterized in that, Before being assembled with the rotating shaft (120), the transmission member (140) is movably disposed in the main body (110) along the first direction (X). The transmission member (140) and the inner wall of the main body (110) have a movable gap (180) along the first direction (X). The movable gap (180) is greater than the difference between the radii of the two ends of the rotating shaft (120) along the first direction (X). The first direction (X) is perpendicular to the axial direction of the rotating shaft (120).

7. The anterior endpiece (100) of the endoscope as described in claim 3, characterized in that, The rear end face of the main body (110) has a rear port (112) for assembling and disassembling the transmission component (140).

8. The anterior endpiece (100) of the endoscope as described in any one of claims 1 to 7, characterized in that, The inner circumferential surface of the assembly port (111) is circular or elliptical.

9. An endoscope, characterized in that, It includes a connecting part (3), an operating part (2) and an insertion part (1), wherein the insertion part (1) includes the front end portion (100) of the endoscope as described in any one of claims 1 to 8.

10. An endoscope system, characterized in that, It includes image processing equipment, light source equipment, and the endoscope as described in claim 9.

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