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 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 portion comprises: a main body, the peripheral side surface of which has an assembly port to which a side cover is mounted; the rotating shaft is rotationally arranged in the main body; the clamp lifting device is fixedly connected to the rotating shaft; the transmission part is fixedly connected to the rotating shaft; a first supporting section of the rotating shaft is rotationally supported on the main body and is positioned between the clamp lifting device and the transmission part; along the axial direction of the rotating shaft, one end of the rotating shaft fixedly connected with the transmission part and the side cover are in clearance arrangement; in the axial direction of the rotating shaft, the first projection of the assembling opening covers the second projection of the rotating shaft, and the rear end face of the body is provided with a rear end opening used for disassembling and assembling the transmission part. The structure of the front end part is simplified, the diameter of the front end part is reduced, and discomfort caused by the large outer diameter of the front end part is reduced; the assembling opening is designed to be only used for assembling the rotating shaft, the size of the assembling opening is reduced, and the decontamination risk is reduced.

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] In related technologies, the structure of the front end of the insertion part is relatively complex, which makes it impossible to further reduce the outer diameter of the front end, resulting in discomfort when the front end is inserted into the patient's body cavity. 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 the complex structure of the tip in the prior art.

[0005] To achieve the above objectives, firstly, the technical solution adopted in this application is: providing a front end portion, comprising:

[0006] The main body has an assembly port on its peripheral side, and a side cover is installed on the assembly port;

[0007] The pivot is rotatably located within the main body;

[0008] The lifting clamp is fixedly connected to the rotating shaft;

[0009] The transmission component is fixedly connected to the rotating shaft;

[0010] The first support section of the rotating shaft is rotatably supported on the main body, and the first support section is located between the lifting clamp and the transmission member along the axial direction of the rotating shaft; along the axial direction of the rotating shaft, one end of the rotating shaft to which the transmission member is fixed is separated from the side cover by a gap.

[0011] Along the axial direction of the rotating shaft, the first projection of the mounting port covers the second projection of the rotating shaft, and the rear end face of the main body has a rear port for assembling and disassembling the transmission component.

[0012] 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 transmission member is fixed to the first connecting segment, the lifting clamp is fixed to the second connecting segment, and the first support segment is rotatably supported on the main body.

[0013] In some embodiments, the rotating shaft further includes a second support section, which is connected to one end of the second connecting section away from the first support section, and the second support section is rotatably supported on the main body.

[0014] In some embodiments, the lifting clamp includes a rotating part and a lifting part, the rotating part being fixedly connected to the second connecting section, and the lifting part being connected to the rotating part;

[0015] Along the axial direction of the rotating shaft, the first center plane of the rotating part is offset from the second center plane of the lifting part, and the first width of the rotating part is less than half of the second width of the lifting part.

[0016] In some embodiments, along the axial direction of the rotating shaft, one end of the rotating shaft to which the lifting clamp is fixed is spaced apart from the main body.

[0017] In some embodiments, along the axial direction of the shaft, the third projection of the transmission element extends at least partially beyond the first projection of the mounting opening;

[0018] And / or, along the axial direction of the rotating shaft, the first projected area of ​​the mounting opening is smaller than the third projected area of ​​the transmission component.

[0019] In some embodiments, the first projection is circular or near-circular.

[0020] In some embodiments, the centerline of the assembly port coincides with the centerline of the rotating shaft.

[0021] In some embodiments, the difference between the inner diameter of the assembly port and the maximum outer diameter of the rotating shaft ranges from 0.12 mm to 0.18 mm.

[0022] In some embodiments, the side cover is housed in the mounting opening, and the outer peripheral wall of the side cover is bonded to the inner peripheral wall of the mounting opening.

[0023] In some embodiments, the assembly port includes a large-diameter portion and a small-diameter portion that are axially connected, and a stepped surface is connected between the large-diameter portion and the small-diameter portion; the side cover includes a cover body portion and an extension portion that are axially connected, the cover body portion is housed in the large-diameter portion and stops on the stepped surface, and the extension portion is inserted into the small-diameter portion and is spaced apart from the pivot.

[0024] In some embodiments, the difference between the inner diameter of the smaller diameter portion and the maximum outer diameter of the shaft ranges from 0.12 mm to 0.18 mm.

[0025] In some embodiments, the difference between the inner diameter of the large-diameter portion and the inner diameter of the small-diameter portion ranges from 0.2 mm to 0.3 mm.

[0026] In some embodiments, the outer peripheral surface of the extension includes a foolproof plane.

[0027] In some embodiments, the end face of the shaft to which the transmission member is fixed is flush with the end face of the transmission member.

[0028] Secondly, this application also provides an endoscope, including a connecting part, an operating part, and an insertion part, wherein the insertion part includes the aforementioned front end portion.

[0029] Thirdly, this application also provides an endoscope system, including an image processing device, a light source device, and the aforementioned endoscope.

[0030] The beneficial effects of the endoscope front end, endoscope and endoscope system provided in this application are as follows: by rotatably supporting the first support section of the rotating shaft on the main body, the first support section is located between the lifting clamp and the transmission component along the axial direction of the rotating shaft, and along the axial direction of the rotating shaft, the side cover and the end of the rotating shaft to which the transmission component is fixed are separated by a gap, that is, the end of the rotating shaft to which the transmission component is fixed will not form a bearing support with the side cover / main body, and there is no need to extend the rotating shaft relative to the transmission component along the axial direction to form a connection with the side cover, thereby simplifying the structure between the rotating shaft, the side cover and the main body, simplifying the structure of the front end, reducing the diameter of the front end, and reducing the discomfort caused by the large outer diameter of the insertion part. Furthermore, along the axial direction of the shaft, the first projection of the assembly port covers the second projection of the shaft, and the rear end face of the main body has a rear port for disassembling and assembling the transmission components. This means the assembly port is designed solely for shaft assembly and disassembly, unlike related technologies that use it for both shaft and transmission component assembly and disassembly. This allows the assembly port size to be sufficient only for shaft assembly, reducing its diameter and achieving a good seal while minimizing lateral openings, effectively reducing the risk of decontamination. Additionally, the reduced size of the assembly port increases the flushness between the outer surface of the side cover and the outer circumferential surface of the main body, resulting in a smoother front end surface and reducing discomfort caused by insertion into the body cavity. Attached Figure Description

[0031] 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.

[0032] Figure 1 This is a schematic diagram of the structure of an endoscope provided in an embodiment of this application;

[0033] Figure 2A three-dimensional structural diagram of the front end portion of an endoscope provided in an embodiment of this application;

[0034] Figure 3 A schematic diagram of a side structure of the anterior endpiece provided in an embodiment of this application;

[0035] Figure 4 This is a schematic diagram of another side view of the anterior endpiece provided in an embodiment of this application;

[0036] Figure 5 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;

[0037] Figure 6 This is an assembly diagram of the rotating shaft, lifting clamp, and transmission components in an endoscope provided in an embodiment of this application.

[0038] Figure 7 This is a schematic diagram of the structure of the rotating shaft in the endoscope provided in the embodiments of this application;

[0039] Figure 8 This is a schematic diagram of the structure of the forceps lifter in the endoscope provided in the embodiments of this application;

[0040] Figure 9 This is a schematic diagram of the structure of the side cover in the endoscope provided in the embodiments of this application;

[0041] Figure 10 This is a schematic diagram of the AA cross-sectional structure of the front end of an endoscope provided in some other embodiments of this application.

[0042] The following are the labeling elements in the figure:

[0043] 1. Insertion part; 100. Front end part; 110. Main body; 111. Assembly port; 1111. Large diameter part; 1112. Small diameter part; 1113. Stepped surface; 112. Rear end 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. 1. Annular groove; 130. Lifting clamp; 131. Rotating part; 132. Lifting part; 140. Transmission component; 141. Sleeve part; 142. Mounting part; 150. Side cover; 151. Cover part; 152. Extension part; 1521. Foolproof plane; 160. Sealing ring; 170. Rear cover; 200. Bending part; 300. Flexible part; 400. Ultrasonic probe; 2. Operating part; 3. Connecting part; 4. Ultrasonic cable; 5. Steel wire rope; X1. First direction. Detailed Implementation

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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 via a steel wire. The control mechanism drives the transmission component to rotate via 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 biopsy forceps and lithotripsy baskets, etc., inserted through the insertion canal, extend from the insertion canal opening. However, the assembly structure of the rotating shaft, lifting forceps, and transmission component within the main body is relatively complex, resulting in a large outer diameter of the front end. When the front end is inserted into the patient's body cavity, it can easily cause discomfort, and the limited flexibility of the insertion section affects the examination results.

[0050] Therefore, this application provides an endoscope tip 100, an endoscope, and an endoscope system. On the one hand, by simplifying the support fit between the rotating shaft 120 and the main body 110, the outer diameter of the tip 100 is minimized, reducing discomfort caused by the tip 100 being inserted into the patient's body cavity. On the other hand, the mounting port 111 on the peripheral side of the main body 110 is used for the assembly and disassembly of the rotating shaft 120, and the transmission component 140 is assembled and disassembled via the rear port 112 on the rear end face of the main body 110. This greatly reduces the size of the mounting port 111, minimizing the impact of the mounting port 111 and the side cover 150 within the mounting port 111 on the surface neatness of the entire tip 100, thereby reducing discomfort caused by the tip 100 being inserted into the patient's body cavity.

[0051] Please see Figures 1 to 5 The front end portion 100 of the endoscope provided in this application embodiment will now be described in detail. The front end portion 100 includes a main body 110, a rotating shaft 120, a lifting clamp 130, a transmission component 140, and a side cover 150. The peripheral side of the main body 110 has an assembly port 111, on which a side cover 150 is installed; a rotating shaft 120 is rotatably disposed in the main body 110; a lifting clamp 130 is fixedly connected to the rotating shaft 120; a transmission component 140 is fixedly connected to the rotating shaft 120; a first support section 122 of the rotating shaft 120 is rotatably supported on the main body 110, and the first support section 122 is located between the lifting clamp 130 and the transmission component 140 along the axial direction of the rotating shaft 120; along the axial direction of the rotating shaft 120, one end of the rotating shaft 120 to which the transmission component 140 is fixedly disposed with a gap from the side cover 150; along the axial direction of the rotating shaft 120, the first projection of the assembly port 111 covers the second projection of the rotating shaft 120, and the rear end face of the main body 110 has a rear port 112 for disassembling and assembling the transmission component 140.

[0052] It should be noted that the rotating shaft 120 is rotatably disposed within the main body 110, meaning that the rotating shaft 120 is disposed within the main body 110 and can rotate within the main body 110 under the action of external force. For example, the rotating shaft 120 and the main body 110 can be rotatably connected through a rotational fit between cylindrical surfaces.

[0053] 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.

[0054] The clamp lifter 130 and the transmission component 140 are respectively fixed to the rotating shaft 120 and spaced apart along the axial direction of the rotating shaft 120. The first support section 122 of the rotating shaft 120 is rotatably supported on the main body 110. The first support section 122 is located between the clamp lifter 130 and the transmission component 140 along the axial direction of the rotating shaft 120. That is, the rotating shaft 120 is rotatably connected to the main body 110 through the first support section 122 located between the clamp lifter 130 and the transmission component 140. The transmission component 140 is configured to be connected to the control mechanism of the operating part 2 via a steel wire rope 5. The control mechanism drives the transmission component 140, the rotating shaft 120 and the clamp lifter 130 to rotate in the main body 110 via the steel wire rope 5.

[0055] It should be noted that, along the axial direction of the rotating shaft 120, the end of the rotating shaft 120 to which the transmission component 140 is fixed is spaced apart from the side cover 150. This means that there is a gap between the end face of the side cover 150 and the rotating shaft 120, allowing the rotating shaft 120 to rotate flexibly within the main body 110 without the side cover 150 causing structural interference to the rotation of the rotating shaft 120. Simultaneously, the distance between the side cover 150 and the rotating shaft 120 is small to ensure a compact axial layout of the entire front end portion 100. In other words, the meaning of "gap setting" in this application is the same as "gap fit".

[0056] It should be noted that, along the axial direction of the rotating shaft 120, the first projection of the assembly port 111 covers the second projection of the rotating shaft 120. This means that the second projection of the rotating shaft 120 falls within the first projection of the assembly port 111. The range of the first projection of the rotating shaft 120 can be less than or equal to the range of the second projection of the assembly port 111, thereby enabling the rotating shaft 120 to be removed along its axial direction through the assembly port 111, so as to realize the disassembly of the rotating shaft 120.

[0057] It should be noted that the main body 110 is roughly cylindrical. The circumferential side surface of the main body 110 refers to the side surface of the main body 110 along the circumferential direction, the rear end surface of the main body 110 refers to the end surface of the main body 110 facing the operating part 2, and the front end surface of the main body 110 refers to the end surface of the main body 110 away from the operating part 2. The assembly port 111 is located on the circumferential side surface of the main body 110, and the rear port 112 is located on the rear end surface of the main body 110. During disassembly and assembly, the transmission component 140 can be first installed into the main body 110 through the rear port 112, and then the rotating shaft 120 can be installed into the main body 110 through the assembly port 111 on the circumferential side surface of the main body 110.

[0058] The front end portion 100 provided in this application embodiment is rotatably supported on the main body 110 by the first support section 122 of the rotating shaft 120. The first support section 122 is located between the lifting clamp 130 and the transmission member 140 along the axial direction of the rotating shaft 120. Along the axial direction of the rotating shaft 120, the side cover 150 and the end of the rotating shaft 120 to which the transmission member 140 is fixed are separated by a gap. That is, the end of the rotating shaft 120 to which the transmission member 140 is fixed will not form a bearing support with the side cover 150 / main body 110. It is not necessary to extend the rotating shaft 120 relative to the transmission member 140 along the axial direction to form a connection with the side cover 150. This simplifies the structure between the rotating shaft 120, the side cover 150 and the main body 110, simplifies the structure of the front end portion 100, reduces the diameter of the front end portion 100, and reduces the discomfort caused by the large outer diameter of the insertion part 1. Furthermore, along the axial direction of the rotating shaft 120, the first projection of the assembly port 111 covers the second projection of the rotating shaft 120, and the rear end face of the main body 110 has a rear port 112 for the assembly and disassembly of the transmission component 140. This means the assembly port 111 is designed solely for the assembly and disassembly of the rotating shaft 120, unlike related technologies that use it for both the rotating shaft 120 and the transmission component 140. This allows the size of the assembly port 111 to only meet the assembly requirements of the rotating shaft 120, thus reducing its diameter. This minimizes the lateral opening while achieving a good sealing effect and effectively reducing the risk of decontamination. Alternatively, if the first projection of the assembly port 111 is set to be circular or near-circular, the minimum inner diameter of the assembly port 111 only needs to be designed to be slightly larger than the maximum outer diameter of the rotating shaft 120. This not only further reduces the diameter of the assembly port 111 but also makes its surface smooth without sharp corners, reducing the risk of decreased sealing performance and increased decontamination due to processing and use. Furthermore, the reduction in the size of the assembly opening 111 results in a higher degree of flushness between the outer surface of the side cover 150 and the outer peripheral surface of the main body 110, which in turn makes the surface of the front end 100 smoother and reduces the discomfort caused by the insertion of the front end 100 into the body cavity.

[0059] In some embodiments, please refer to Figures 5 to 7 The rotating shaft 120 includes a first connecting section 121, a second connecting section 123, and a first support section 122. The first connecting section 121, the first support section 122, and the second connecting section 123 are connected sequentially along the axial direction of the rotating shaft 120. The transmission component 140 is fixedly connected to the first connecting section 121, and the lifting clamp 130 is fixedly connected to the second connecting section 123. The first support section 122 is supported on the main body 110 and forms a rotatable connection with the main body 110. The end face of the first connecting section 121 and the side cover 150 are spaced apart along the axial direction of the rotating shaft 120.

[0060] In some embodiments, please refer to Figures 5 to 7The 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. That is, the rotating shaft 120 includes a first connecting section 121, a first support section 122, a second connecting section 123, and a second support section 124 connected sequentially along its axial direction. The transmission component 140 is fixed to the first connecting section 121, and the clamping device 130 is fixed to the second connecting section 123. The first support section 122 and the second support section 124 are rotatably supported on the main body 110. In this embodiment, the rotating shaft 120 forms supports with the main body 110 through the first support section 122 and the second support section 124, thereby ensuring the stability of the rotating shaft 120 within the main body 110 and ensuring the smooth rotation of the rotating shaft 120, the transmission component 140, and the clamping device 130.

[0061] In some embodiments, please refer to Figure 5 The axial length of the second support section 124 is less than that of the first support section 122, which serves as the main support for the shaft 120 and the main body 110. Since the transmission component 140 and the clamping device 130 are located on opposite sides of the first support section 122, using the first support section 122 as the main support for the shaft 120 ensures the stability of the shaft's load distribution and the smooth rotation of the transmission component 140 and the clamping device 130. The second support section 124, while enhancing the support strength of the main body 110 for the shaft 120, also minimizes the axial length of the shaft 120, thereby reducing its impact on the outer diameter of the entire front end portion 100.

[0062] In some embodiments, please refer to Figure 6 and Figure 8The 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 diagnostic accessory to a preset angle when the rotating part 131 rotates. Along the axial direction of the rotating shaft 120, the first center surface of the rotating part 131 is offset from the second center surface of the lifting part 132, and the first width of the rotating part 131 is less than half of the second width of the lifting part 132. Both the first and second center surfaces are perpendicular to the axial direction of the rotating shaft 120. The first center surface is the surface at the center position of the rotating part 131 along the axial direction of the rotating shaft 120, and the second center surface is the surface at the center position of the lifting part 132 along the axial direction of the rotating shaft 120. The first width is the axial width dimension of the rotating part 131 along the rotating shaft 120, and the second width is the axial width dimension of the lifting part 132 along the rotating shaft 120. In this embodiment, by offsetting the center planes of the rotating part 131 and the lifting part 132, and reducing the first width of the rotating part 131, the axial length of the second connecting section 123 of the rotating shaft 120 can be reduced, thereby reducing the total length of the rotating shaft 120 and consequently reducing the outer diameter of the entire front end portion 100. Furthermore, the reduction of the second connecting section 123 allows for a relative increase in the length of the first support section 122, thus ensuring the support stability of the rotating shaft 120 within the main body 110.

[0063] In some embodiments, please refer to Figure 5 The main body 110 has a first cavity 113, a second cavity 114, a first support hole 115, and a second support hole 116. An assembly port 111 and a rear port 112 are respectively connected to the first cavity 113. A side cover 150 is installed at the assembly port 111, and a rear cover 170 is installed at the rear port 112. 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 wall of the second cavity 114. After assembly, the transmission component 140 is assembled in the first cavity 113, the clamping device 130 is assembled in the second cavity 114, and the rotating shaft 120 passes sequentially through the transmission component 140, the first support hole 115, the clamping device 130, and the second support hole 116. The main body 110, side cover 150, rear cover 170 and rotating shaft 120 together enclose and form a sealed first cavity 113, and the transmission component 140 is rotatably disposed in the first cavity 113. The second cavity 114 is connected to the outside of the main body 110, and the lifting clamp 130 is rotatably disposed in the second cavity 114.

[0064] Optionally, the second support hole 116 is a circular hole, and the second support section 124 is rotatably supported in the second support hole 116. In other embodiments, the second support hole 116 may also be a non-circular hole such as a semi-circular hole or a one-third circular hole, and the second support hole 116 communicates with the second cavity 114, with the second support section 124 supported in the second support hole 116.

[0065] In some embodiments, please refer to Figure 5 and Figure 6 Two sealing rings 160 abut against the outer peripheral wall of the first support section 122 and the inner peripheral wall of the first support hole 115. The two sealing rings 160 are spaced apart along the axial direction of the rotating shaft 120. The two sealing rings 160 form a seal between the rotating shaft 120 and the main body 110, preventing fluid in the second cavity 114 from entering the first cavity 113 through the space between the rotating shaft 120 and the main body 110, thus ensuring the sealing of the first cavity 113. It can be understood that in other embodiments of this application, depending on the length of the first support section 122, one or three sealing rings 160 may also be provided on the outside of the first support section 122, which is not limited here.

[0066] In some embodiments, please refer to Figure 7 The outer peripheral wall of the first support section 122 is recessed with two spaced annular grooves 126, and the two sealing rings 160 are respectively accommodated and confined in the annular grooves 126.

[0067] 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.

[0068] As an example, please see Figure 4 and Figure 5 The first projection is circular, that is, the inner circumferential surface of the assembly port 111 is a cylindrical surface, and the outer circumferential surface of the side cover 150 is also a cylindrical surface. This design makes it easy to process the inner circumferential surface of the assembly port 111, and the surface is smooth without square corners. It is less likely to cause problems such as decreased sealing effect and increased risk of cleaning and disinfection due to processing and use.

[0069] As another example, the first projection is circular, meaning it resembles a circle but is not a perfect circle, such as an ellipse. That is, the inner circumferential surface of the assembly port 111 is a near-cylindrical surface, and the outer circumferential surface of the side cover 150 is also a near-cylindrical surface, without any sharp corners, which also reduces 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; this is not a limiting factor.

[0070] In some embodiments, along the axial direction of the rotating shaft 120, the third projection of the transmission member 140 at least partially extends beyond the first projection of the mounting port 111. That is, when designing the shape and size of the mounting port 111, it is only necessary to consider covering the second projection of the rotating shaft 120 with the first projection of the mounting port 111, without covering the third projection of the transmission member 140 with the first projection of the mounting port 111, so that the size of the mounting port 111 is as small as possible. At this time, designing the mounting port 111 as circular or near-circular can ensure a good sealing effect and make the surface of the front end 100 smooth, reducing the discomfort of insertion.

[0071] Optionally, the transmission member 140 includes a cover portion and an extension portion, wherein the cover portion is the part of the transmission member 140 covered by the mounting port 111, and the extension portion is the part of the transmission member 140 extending outside the mounting port 111. Along the first direction, the ratio of the first length of the extension portion to the first length of the transmission member 140 is between 1 / 3 and 2 / 3.

[0072] Specifically, the transmission component 140 includes a sleeve portion 141 sleeved on the rotating shaft 120 and a mounting portion 142 for mounting the wire rope 5. The first direction X1 is a direction perpendicular to the axial direction of the rotating shaft 120, and the first direction X1 is the distribution direction of the sleeve portion 141 and the mounting portion 142.

[0073] In some embodiments, please refer to Figure 5 Along the axial direction of the rotating shaft 120, the first projected area of ​​the mounting opening 111 is smaller than the third projected area of ​​the transmission component 140. Along the axial direction of the rotating shaft 120, the first projected area of ​​the mounting opening 111 is larger than the second projected area of ​​the rotating shaft 120. The first projected area of ​​the mounting opening 111 can be larger than or smaller than the projected area of ​​the sleeve portion 141, but the first projected area of ​​the mounting opening 111 is smaller than the third projected area of ​​the entire transmission component 140, so as to minimize the first projected area of ​​the mounting opening 111 while satisfying the assembly of the rotating shaft 120.

[0074] In some embodiments, along the axial direction of the shaft 120, the third projection of the transmission member 140 extends at least partially beyond the first projection of the mounting opening 111; and along the axial direction of the shaft 120, the first projection area of ​​the mounting opening 111 is smaller than the third projection area of ​​the transmission member 140.

[0075] 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.

[0076] In some embodiments, please refer to Figure 4 The centerline of the rotating shaft 120 is perpendicularly intersecting the central axis of the main body 110, meaning the centerline of the rotating shaft 120 passes through the center point of one radial section of the main body 110. This arrangement ensures that the centerline of the assembly port 111 also passes through the center point of one radial section of the main body 110, resulting in symmetrical arrangement of the assembly port 111 on the circumferential surface of the main body 110. This reduces the processing difficulty of the assembly port 111 and minimizes the impact of the formation of the assembly port 111 and the assembly of the side cover 150 on the surface neatness of the front end portion 100, thus reducing discomfort during insertion of the front end portion 100. Of course, in other embodiments, the centerline of the rotating shaft 120 may deviate from the central axis of the main body 110; this is not a limiting factor.

[0077] In one embodiment, the difference between the minimum inner diameter of the assembly port 111 and the maximum outer diameter of the rotating shaft 120 ranges from 0.12mm to 0.18mm. For example, the difference between the minimum inner diameter of the assembly port 111 and the outer diameter of the rotating shaft 120 can be 0.12mm, 0.125mm, 0.13mm, 0.135mm, 0.14mm, 0.145mm, 0.15mm, 0.155mm, 0.16mm, 0.165mm, 0.17mm, 0.175mm, or 0.18mm. By limiting the difference between the minimum inner diameter of the assembly port 111 and the maximum outer diameter of the rotating shaft 120 to a certain range, this embodiment allows for a smaller inner diameter of the assembly port 111 while permitting machining errors in both the assembly port 111 and the rotating shaft 120, thereby reducing the difficulty of cleaning and disinfection.

[0078] The assembly port 111 can be a straight cylindrical structure or a variable diameter structure. In addition, the outer diameter of the rotating shaft 120 also gradually changes along the axial direction. Therefore, it is necessary to limit the difference between the minimum inner diameter of the assembly port 111 and the maximum outer diameter of the rotating shaft 120.

[0079] Furthermore, when the cross-section of the assembly port 111 is not circular, the inner diameter of the assembly port 111 refers to the first width between two points passing through the center of the cross-section of the assembly port 111. When there are different first widths, the smallest first width is selected for calculation. Similarly, when the cross-section of the rotating shaft 120 is not circular, the outer diameter of the rotating shaft 120 refers to the second width between two points passing through the center of the cross-section of the rotating shaft 120. When there are different second widths, the largest second width is selected for calculation.

[0080] In some embodiments, please refer to Figure 5 and Figure 9 The assembly port 111 includes a large-diameter portion 1111 and a small-diameter portion 1112 that are connected axially, and a stepped surface 1113 connects the large-diameter portion 1111 and the small-diameter portion 1112. The side cover 150 includes a cover body portion 151 and an extension portion 152 that are connected axially. The cover body portion 151 is housed in the large-diameter portion 1111 and stopped by the stepped surface 1113. The extension portion 152 is inserted into the small-diameter portion 1112 and is spaced apart from the rotating shaft 120. The stepped surface 1113 can axially limit the side cover 150, preventing the side cover 150 from falling into the body 110 and becoming impossible to disassemble.

[0081] In some embodiments, the difference between the inner diameter of the minor diameter portion 1112 and the maximum outer diameter of the rotating shaft 120 ranges from 0.12mm to 0.18mm. For example, the difference between the inner diameter of the minor diameter portion 1112 and the outer diameter of the rotating shaft 120 can be 0.12mm, 0.125mm, 0.13mm, 0.135mm, 0.14mm, 0.145mm, 0.15mm, 0.155mm, 0.16mm, 0.165mm, 0.17mm, 0.175mm, or 0.18mm, etc. By limiting the difference between the inner diameter of the minor diameter portion 1112 and the outer diameter of the rotating shaft 120 within a certain range, this embodiment allows for the minimization of the inner diameter of the minor diameter portion 1112 while permitting machining errors in both the minor diameter portion 1112 and the rotating shaft 120, thereby reducing the difficulty of cleaning and disinfection.

[0082] In some embodiments, the difference between the inner diameter of the large-diameter portion 1111 and the inner diameter of the small-diameter portion 1112 ranges from 0.2mm to 0.3mm. For example, the difference between the inner diameter of the large-diameter portion 1111 and the inner diameter of the small-diameter portion 1112 can be 0.2mm, 0.21mm, 0.22mm, 0.23mm, 0.24mm, 0.25mm, 0.26mm, 0.27mm, 0.28mm, 0.29mm, or 0.3mm, etc. This arrangement allows the area of ​​the step surface 1113 to be minimized as much as possible, provided that the area of ​​the step surface 1113 is sufficient to support the limiting side cover 150, thereby minimizing the inner diameter of the large-diameter portion 1111 and reducing the difficulty of cleaning and disinfection.

[0083] In some embodiments, the inner diameter of the large-diameter portion 1111 ranges from 0.32mm to 0.48mm. For example, the inner diameter of the large-diameter portion 1111 can be 0.32mm, 0.33mm, 0.34mm, 0.35mm, 0.36mm, 0.37mm, 0.38mm, 0.39mm, 0.40mm, 0.41mm, 0.42mm, 0.43mm, 0.44mm, 0.45mm, 0.46mm, 0.47mm, or 0.48mm. By limiting the inner diameter of the large-diameter portion 1111 to a certain range, this embodiment allows for a smaller inner diameter of the assembly port 111 while allowing for machining errors in the assembly port 111 and the rotating shaft 120, thereby reducing the difficulty of cleaning and disinfection.

[0084] In some embodiments, please refer to Figure 9 The outer peripheral surface of the extension 152 includes a foolproof plane 1521. In the actual design and manufacturing process, the assembly port 111 is formed on the circumferential surface of the main body 110, and the side cover 150 is assembled on the circumferential surface of the main body 110. Therefore, the structures of the side cover 150 and the assembly port 111 are different in the circumferential direction. The setting of the foolproof plane 1521 can avoid the situation where the side cover 150 and the assembly port 111 are inconsistent in assembly direction, and avoid the situation where the surface of the front end 100 is uneven due to incorrect assembly direction, thereby improving the comfort of inserting the front end 100 into the body cavity.

[0085] In some embodiments, the side cover 150 is housed in the assembly port 111, and the outer peripheral wall of the side cover 150 is bonded to the inner peripheral wall of the assembly port 111. By bonding the side cover 150, it can securely mount the side cover 150 to the main body 110 and also form a seal between the side cover 150 and the main body 110. This means the transmission component 140 can be sealed within the first cavity 113, eliminating the need for a sealing ring between the side cover 150 and the main body 110. This further reduces the outer diameter of the side cover 150, and consequently the inner diameter of the assembly port 111, thereby reducing the difficulty of cleaning and disinfection.

[0086] Optionally, the side cover 150 is made of a biocompatible material to ensure the safety of its use.

[0087] In some embodiments, please refer to Figure 5 The end face of the rotating shaft 120, to which the transmission component 140 is fixed, is flush with the end face of the transmission component 140, meaning that the rotating shaft 120 will not protrude relative to the transmission component 140, thus minimizing the axial dimension of the rotating shaft 120. Furthermore, the inner end face of the side cover 150 can simultaneously axially limit both the rotating shaft 120 and the transmission component 140, thereby reducing the axial limiting structure of the rotating shaft 120 and the transmission component 140, simplifying the structure of the front end 100, and reducing its size.

[0088] In some embodiments, please refer to Figure 4 The end face of the rotating shaft 120 facing the assembly port 111 has a threaded hole 125. The threaded hole 125 makes it easy to remove the rotating shaft 120 by inserting a threaded hole removal tool into the threaded hole 125.

[0089] In other embodiments of this application, please refer to Figure 10 Along the axial direction of the rotating shaft 120, the end face of the lifting clamp 130 is fixedly connected to the rotating shaft 120 with a gap between it and the main body 110. That is, the rotating shaft 120 is mainly supported by the main body 110 through the first support section 122, and the transmission component 140 and the lifting clamp 130 are respectively located on opposite sides of the first support section 122, which improves the rotational balance of the rotating shaft 120.

[0090] In another embodiment of this application, the assembly port 111 is a cylindrical surface without a stepped surface 1113 inside. The inner diameter of the assembly port 111 remains unchanged along the axial direction. In this case, it is only necessary to ensure that the difference between the inner diameter of the assembly port 111 and the outer diameter of the rotating shaft 120 is within the range of 0.12mm-0.18mm.

[0091] 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.

[0092] The insertion part 1 includes the aforementioned front end portion 100, curved portion 200, and flexible portion 300, which are connected sequentially. The flexible portion 300 is connected to the operating part 2. Please refer to [link / reference]. Figure 3 and Figure 4 The insertion section 1 also includes an ultrasound probe 400, which is used for real-time ultrasound imaging to obtain ultrasound images of different internal tissues of the human body, thereby assisting in medical diagnosis. The ultrasound probe 400 is connected to the ultrasound host via an ultrasound cable 4. Of course, in other embodiments, the endoscope may not include the ultrasound probe 400, such as a duodenoscope.

[0093] 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.

[0094] Thirdly, embodiments of this application also provide an endoscope system, including an image processing device, a light source device, 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. A display device is communicatively connected to the image processing device and displays the processed optical image for the doctor's observation and operational assistance.

[0095] 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, include: The main body (110) has a mounting opening (111) on its peripheral side, and a side cover (150) is installed on the mounting opening (111); A rotating shaft (120) is rotatably disposed within the main body (110); A lifting clamp (130) is fixedly connected to the rotating shaft (120); The transmission component (140) is fixedly connected to the rotating shaft (120); The first support section (122) of the rotating shaft (120) is rotatably supported on the main body (110). The first support section (122) is located between the lifting clamp (130) and the transmission member (140) along the axial direction of the rotating shaft (120). Along the axial direction of the rotating shaft (120), one end of the rotating shaft (120) to which the transmission member (140) is fixed is separated from the side cover (150) by a gap. Along the axial direction of the rotating shaft (120), the first projection of the mounting port (111) covers the second projection of the rotating shaft (120), and the rear end face of the body (110) has a rear port (112) for assembling and disassembling the transmission member (140).

2. 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 transmission component (140) is fixedly connected to the first connecting section (121), the lifting clamp (130) is fixedly connected to the second connecting section (123), and the first support section (122) is rotatably supported on the main body (110).

3. The anterior endpiece (100) of the endoscope as described in claim 2, characterized in that, The rotating shaft (120) further includes a second support section (124), which is connected to the end of the second connecting section (123) away from the first support section (122) and is rotatably supported on the main body (110).

4. The anterior endpiece (100) of the endoscope as described in claim 1, characterized in that, Along the axial direction of the rotating shaft (120), one end of the rotating shaft (120) to which the lifting clamp (130) is fixed is spaced apart from the main body (110).

5. The anterior endpiece (100) of the endoscope as described in any one of claims 1 to 4, characterized in that, Along the axial direction of the shaft (120), the third projection of the transmission member (140) extends at least partially beyond the first projection of the mounting opening (111); And / or, along the axial direction of the rotating shaft (120), the first projected area of ​​the mounting port (111) is smaller than the third projected area of ​​the transmission member (140).

6. The anterior endpiece (100) of the endoscope as described in any one of claims 1 to 4, characterized in that, The first projection is circular or nearly circular.

7. The anterior endpiece (100) of the endoscope as described in any one of claims 1 to 4, characterized in that, The centerline of the assembly port (111) coincides with the centerline of the rotating shaft (120).

8. The anterior endpiece (100) of the endoscope as described in any one of claims 1 to 4, characterized in that, The difference between the minimum inner diameter of the assembly port (111) and the maximum outer diameter of the rotating shaft (120) is in the range of 0.12mm-0.18mm.

9. The anterior endpiece (100) of the endoscope as described in any one of claims 1 to 4, characterized in that, The assembly port (111) includes a large-diameter portion (1111) and a small-diameter portion (1112) connected along the axial direction, and a stepped surface (1113) is connected between the large-diameter portion (1111) and the small-diameter portion (1112); the side cover (150) includes a cover body portion (151) and an extension portion (152) connected along the axial direction, the cover body portion (151) is housed in the large-diameter portion (1111) and stops on the stepped surface (1113), and the extension portion (152) is inserted into the small-diameter portion (1112) and is spaced apart from the rotating shaft (120).

10. The anterior endpiece (100) of the endoscope as claimed in claim 9, characterized in that, The difference between the inner diameter of the small diameter portion (1112) and the maximum outer diameter of the rotating shaft (120) is in the range of 0.12mm-0.18mm.

11. The anterior endpiece (100) of the endoscope as described in claim 9, characterized in that, The difference between the inner diameter of the large diameter portion (1111) and the inner diameter of the small diameter portion (1112) is in the range of 0.2mm-0.3mm.

12. The anterior endpiece (100) of the endoscope as described in claim 9, characterized in that, The outer peripheral surface of the extension (152) includes a foolproof plane (1521).

13. The anterior endpiece (100) of the endoscope as described in any one of claims 1 to 4, characterized in that, The side cover (150) is housed in the assembly port (111), and the outer peripheral wall of the side cover (150) is bonded to the inner peripheral wall of the assembly port (111).

14. The anterior endpiece (100) of the endoscope as described in any one of claims 1 to 4, characterized in that, The end face of the shaft (120) to which the transmission component (140) is fixed is flush with the end face of the transmission component (140).

15. The anterior endpiece (100) of the endoscope as described in claim 2 or 3, characterized in that, The lifting clamp (130) includes a rotating part (131) and a lifting part (132). The rotating part (131) is fixed to the second connecting section (123), and the lifting part (132) is connected to the rotating part (131). Along the axial direction of the rotating shaft (120), the first center plane of the rotating part (131) is offset from the second center plane of the lifting part (132), and the first width of the rotating part (131) is less than half of the second width of the lifting part (132).

16. 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 15.

17. An endoscope system, characterized in that, It includes image processing equipment, light source equipment, and the endoscope as described in claim 16.

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