Mounting structure of insertion portion, operating handle, and endoscope

Abstract

The application discloses an insertion part mounting structure, an operating handle and a endoscope, and relates to the technical field of medical devices. The insertion part mounting structure comprises a shell and a rotating sleeve. The shell is provided with an assembly hole. A sheath is used for accommodating and restricting an insertion tube. A part of the rotating sleeve is located in the sheath, another part of the rotating sleeve extends out of the sheath and is mounted in the assembly hole and is arranged to rotate relative to the shell. In the axial direction of the assembly hole, the outer wall of the rotating sleeve is in uniform contact with the hole wall of the assembly hole, so that the rotating sleeve and the assembly hole are balanced in force during rotation. In the axial direction of the assembly hole, the length of the rotating sleeve is longer, which avoids installation looseness or wear caused by excessive local stress between the shell and the rotating sleeve, further guarantees the stability of the installation of the rotating sleeve, ensures that the insertion tube always remains smooth and does not deviate from the preset track when rotating, and optimizes the rotation feeling of the insertion tube.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to an insertion part mounting structure, an operating handle, and an endoscope. Background Technology

[0002] An endoscope is a commonly used medical device that can directly enter the body's natural cavities, providing doctors with ample diagnostic information for disease treatment. An endoscope has a handle for gripping, and the insertion section extending from the handle usually has a rotating component. This component allows the insertion section to rotate relative to the handle in a designated direction, enabling the endoscope's camera module to accurately acquire images of lesions.

[0003] However, when the existing rotating parts are rotated with the operating handle, the rotating parts are prone to misalignment. This not only leads to eccentric wear between the rotating parts and the operating handle, but also easily causes stress concentration at the shaft hole end of the operating handle, thus damaging the operating handle. Utility Model Content

[0004] The purpose of this application is to provide an installation structure for an insertion part, an operating handle, and an endoscope, which at least partially solves the aforementioned technical problems existing in the prior art.

[0005] In a first aspect, this application provides an installation structure for an insertion part for an endoscope. The installation structure includes a housing and a rotating sleeve. The rotating sleeve is adapted to be connected to the insertion tube of the endoscope to drive the insertion tube to rotate relative to the housing. The housing has an assembly hole. A sheath is used to accommodate and constrain the insertion tube. A portion of the rotating sleeve is located inside the sheath, and another portion extends out of the sheath and is installed in the assembly hole. The rotating sleeve is rotatably configured relative to the housing.

[0006] Secondly, this application provides an operating handle, which includes an installation structure for the insertion portion as described in the first aspect.

[0007] Thirdly, this application provides an endoscope, which includes an operating handle and an insertion part as described in the second aspect, wherein the insertion tube of the insertion part is connected to a rotating sleeve.

[0008] The technical solution adopted in this application achieves the following beneficial effects: the rotating sleeve can be connected to the insertion tube, and the rotating sleeve can be rotatably connected to the housing. This ensures a stable connection between the housing and the insertion part of the operating handle, while also allowing rotation relative to the housing via the rotating sleeve. The insertion tube can form the outer wall of the insertion part, and the camera module and illumination module on the insertion part can be connected to the insertion tube. This enables flexible rotation of the insertion part relative to the housing, allowing the camera module and illumination module of the insertion part to face a predetermined direction to illuminate and acquire image information of the lesion, thus meeting the need to adjust the insertion direction of the endoscope during use.

[0009] Compared to existing technologies, the housing of this application has an assembly hole, with a portion of the rotating sleeve located inside the sheath, allowing medical personnel to easily hold and rotate the rotating sleeve to change the orientation of the insertion part. The other portion of the rotating sleeve extends outside the sheath and is installed within the assembly hole, with the rotating sleeve rotatably positioned relative to the housing. For example, the rotating sleeve can be a hollow tubular structure, with the rotating sleeve and housing correspondingly assembled. Axially, the outer wall of the rotating sleeve forms uniform contact with the wall of the assembly hole, ensuring force balance between the rotating sleeve and the assembly hole during rotation. A longer length of the rotating sleeve along the axial direction of the assembly hole prevents loosening or wear due to excessive local stress between the housing and the rotating sleeve, further ensuring the stability of the rotating sleeve installation and ensuring smooth rotation of the insertion tube without deviating from the preset trajectory, thus optimizing the rotation feel of the insertion tube. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, 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.

[0011] Figure 1 This is a schematic diagram of the structure of an endoscope shown in an exemplary embodiment of this application; Figure 2 This is a cross-sectional view of the installation structure shown in an exemplary embodiment of this application; Figure 3 yes Figure 2 Enlarged view of point a in the image; Figure 4 This is a schematic diagram illustrating the structure of the rotating sleeve, rotating member, and adapter in an exemplary embodiment of this application; Figure 5 This is a cross-sectional view illustrating a rotating sleeve, a rotating member, and an adapter, as shown in an exemplary embodiment of this application. Figure 6 This is a schematic diagram of the adapter structure shown in an exemplary embodiment of this application; Figure 7 This is a schematic diagram illustrating the structure of another endoscope as shown in an exemplary embodiment of this application.

[0012] In the figure: 1. Endoscope; 100. Mounting structure; 110. Housing; 111. Assembly hole; 112. Distal end; 120. Rotating sleeve; 121. Rotating component; 1211. Restraining part; 1212. Anti-slip protrusion; 122. Mating structure; 123. Sealing element; 1231. First sealing element; 1232. Second sealing element; 130. Adapter; 131. Limiting part; 140. Sheath; 200. Insertion part; 210. Insertion tube; 300. Operating handle. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0014] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0015] In the various embodiments of this application, "near end" and "far end" refer to the distance of each component from the user in the usage environment. The end closer to the user is designated as the "near end", and the end farther from the user is designated as the "far end".

[0016] This application provides a mounting structure 100 for an insertion part. See also... Figure 1 For ease of description, the mounting structure 100 for the insertion part will be simplified to mounting structure 100 in the following description. For example, the mounting structure 100 is used for an endoscope 1, which includes an operating handle 300 and an insertion part 200, the insertion part 200 being rotatably mounted on the operating handle 300 via the mounting structure 100.

[0017] Please see Figure 1 as well as Figure 2The mounting structure 100 may include a housing 110, a rotating sleeve 120, and a sheath 140. The rotating sleeve 120 is adapted to connect to the insertion tube 210 of the endoscope 1, so as to drive the insertion tube 210 to rotate relative to the housing 110. The insertion tube 210 may be an external structure of the insertion part 200. Further, the insertion tube 210 may form the outer wall of the insertion part 200. The camera module and illumination module on the insertion part 200 may be connected to the insertion tube 210. The insertion tube 210 may be a hollow tubular structure that can accommodate instrument tubes and wire harnesses, etc. The rotating sleeve 120 can be connected to the insertion tube 210, and the rotating sleeve 120 can be rotatably connected to the housing 110. This ensures that the housing 110 of the operating handle 300 and the insertion part 200 are stably connected, and the insertion tube 210 can be flexibly rotated relative to the housing 110 by rotating the rotating sleeve 120 relative to the housing 110. This allows the camera module and illumination module of the insertion part 200 to face a predetermined direction to illuminate and acquire image information of the lesion, thus meeting the need for adjusting the insertion direction of the insertion part 200 of the endoscope 1 during use.

[0018] Please see Figure 3 The housing 110 has an assembly hole 111, and a sheath 140 is used to accommodate and constrain the insertion tube 210. The sheath 140 can cover the insertion part 200, which can isolate the direct impact of external friction and collision on the insertion part 200, providing protection for the insertion part 200. A portion of the rotating sleeve 120 is located inside the sheath 140, making it easy for medical personnel to hold and rotate the rotating sleeve 120 to change the direction of the insertion part 200. Another portion of the rotating sleeve 120 extends out of the sheath 140 and is installed in the assembly hole 111. The rotating sleeve 120 is rotatably configured relative to the housing 110. Further, exemplaryly, the rotating sleeve 120 can be a hollow tubular structure, and the rotating sleeve 120 and the housing 110 are correspondingly assembled. In the axial direction of the assembly hole 111, the outer wall of the rotating sleeve 120 forms uniform contact with the hole wall of the assembly hole 111, and the uniform contact allows the rotating sleeve 120 and the assembly hole 111 to be in force balance during rotation. The rotating sleeve 120 is longer in the axial direction of the mounting hole 111. This avoids loosening or wear caused by excessive local stress between the housing 110 and the rotating sleeve 120, further ensuring the stability of the rotating sleeve 120 installation, ensuring that the insertion tube 210 always rotates smoothly and does not deviate from the preset trajectory, and optimizing the rotation feel of the insertion tube 210.

[0019] Understandably, the rotating sleeve 120 and the sheath 140 are partially nested together. When the rotating sleeve 120 rotates, it can drive the sheath 140 to move synchronously, and the insertion part 200, which is constrained by the sheath 140, will rotate together with the sheath 140. Compared with the rotating sleeve 120 alone driving the insertion part 200, the linkage setting allows a longer length of the insertion part 200 to rotate with it, avoiding torsional damage caused by uneven local force on the insertion part 200, further ensuring the rotational stability of the rotating sleeve 120, and also ensuring that the insertion part 200 maintains a stable posture during rotation without deviation or shaking, further improving the accuracy of endoscope 1 operation.

[0020] In the embodiments of this application, please continue to refer to Figure 3 The mounting structure 100 may further include a sheath 140 for receiving and constraining the insertion portion 200. A portion of the rotating sleeve 120 is located within the sheath 140, and another portion extends out of the sheath 140 and is installed within the mounting hole 111. In the embodiments of this application, please refer to... Figure 4 as well as Figure 5 The mounting structure 100 may further include an adapter 130, which is disposed between the rotating sleeve 120 and the wall of the mounting hole 111. For example, the adapter 130 may be an annular structure with a channel in which the rotating sleeve 120 is installed. The adapter 130 is a closed structure with the channel extending through it. The closed structure means that the adapter 130 itself can form a surrounding closed space; for example, the adapter 130 may be an integrally formed annular structure. The adapter 130 may also be a wear-resistant layer disposed between the rotating sleeve 120 and the wall of the mounting hole 111, reducing debris or structural wear caused by friction between the rotating sleeve 120 and the wall of the mounting hole 111, extending the service life of the rotating sleeve 120 and the housing 110, while maintaining smooth rotational engagement and preventing rotational jamming due to wear.

[0021] Of course, in one case, please refer to Figure 6 The adapter 130 can be a flexible structure. The adapter 130 can absorb part of the impact force and distribute it evenly to the wall of the mounting hole 111, so as to avoid the impact force being directly concentrated on a certain point of the hole wall, prevent the housing 110 from cracking due to excessive local stress, and further improve the impact resistance of the mounting structure 100.

[0022] For an alternative to an open architecture, please refer to [link / reference]. Figure 6The closed-type adapter 130 has higher structural rigidity, preventing the components of the mounting structure 100 from separating due to external forces. The housing 110 can be composed of two sub-housings. When the insertion part 200 or the sheath 140 is impacted by external forces, the closed structure can evenly distribute the force to the rotating sleeve 120 and the housing 110, preventing the force from concentrating at a single point on the rotating sleeve 120, which could lead to localized breakage or disintegration. This also prevents the housing 110 from disintegrating due to prying apart the two sub-housings. Simultaneously, since the rotating sleeve 120 is installed within the mounting hole 111 of the housing 110, this even force transmission avoids the external force acting directly on the housing 110 as a concentrated load. This prevents the housing 110 from cracking or disintegrating due to excessive localized stress caused by the disintegration of the rotating sleeve 120, thus protecting the housing 110 along the transmission path and improving the overall stability of the mounting structure 100.

[0023] Understandably, in other cases, the rotating sleeve 120 may be formed by the mating of two arc-shaped structures, and the rotating sleeve 120 may be installed inside the housing 110, which will not be elaborated here. The mating surfaces of the two arc-shaped structures are offset from the mating surfaces of the two housings 110 to prevent the rotating sleeve 120 from deforming under stress and forcing the housing 110 to disintegrate, thereby improving stability.

[0024] In another implementation, please refer to [the original text]. Figure 3 Along the axial direction of the housing 110, the adapter 130 is positioned and stopped against the housing 110. The axial contact fit can directly restrict the adapter 130 from disengaging from the housing 110 along the axial direction, preventing the adapter 130 from axially moving when the equipment is running or subjected to external forces. This axial positioning strengthens the connection between the adapter 130 and the housing 110, further improving the stability of the installation structure 100.

[0025] In the embodiments of this application, please continue to refer to Figure 6 The adapter 130 has a limiting portion 131 at its proximal end, which limits the circumferential movement of the housing 110. For example, the limiting portion 131 may be a protrusion on the proximal end of the adapter 130. By engaging circumferentially with the housing 110, the limiting portion 131 restricts the circumferential rotation of the adapter 130 relative to the housing 110, thereby keeping the adapter 130 and the housing 110 circumferentially fixed. Furthermore, the circumferential limiting effect of the adapter 130 restricts the circumferential displacement of the housing 110, further improving the circumferential stability of the mounting structure 100.

[0026] Please refer again to the embodiments in this application. Figure 3The mounting structure 100 may further include a rotating component 121, which is connected to the rotating sleeve 120 and is located outside the housing 110. The rotating component 121 can be an annular structure, etc., and is not limited thereto. Along the axial direction of the mounting hole 111, the rotating component 121 provides a limiting stop against the housing 110. This limiting stop restricts the relative position of the rotating component 121 and the housing 110 in the axial direction, preventing the rotating component 121 from detaching from or excessively approaching the housing 110. Simultaneously, the outer surface of the rotating component 121 is provided with a rotating structure adapted for finger operation, allowing the operator to rotate the rotating structure with their fingers to drive the rotating component 121, thereby driving the rotating sleeve 120 to rotate. This ensures both the convenience of finger rotation operation and positional stability during rotation through axial stopping.

[0027] For a better option, please refer to the following: Figure 3 The housing 110 has a distal end 112, and a mounting hole 111 is formed at the distal end 112. The outer diameter of the rotating member 121 is larger than the outer diameter of the distal end 112. This allows the rotating member 121 to protrude from the outer periphery of the housing 110, forming a noticeable operating protrusion relative to the housing 110. This protrusion allows the operator to easily access and grasp the rotating member 121 without having to insert their fingers into the gaps in the housing 110, significantly reducing the difficulty of rotation and ensuring that the rotating member 121 drives the rotating sleeve 120 to rotate more conveniently and effortlessly.

[0028] Please refer to the previous document. Figure 4 The rotating member 121 is provided with a restraining portion 1211, which limits and abuts against the adapter 130 in a radially inward direction along the rotating sleeve 120. In one case, the restraining portion 1211 is a groove formed near the end of the rotating member 121, and the adapter 130 is embedded in the restraining portion 1211. The inner wall of the groove can form an all-round radial restraint on the adapter 130, which prevents the adapter 130 from shifting or wobbling radially along the rotating sleeve 120, keeping the adapter 130 in a preset position and maintaining the stability of the mounting structure 100. Of course, in another case, the restraining portion 1211 can be a protrusion structure protruding near the end of the rotating member 121, and the restraining portion 1211 can cooperate with the adapter 130. The constraint part 1211 forms a limiting stop with the adapter 130 radially inward along the rotating sleeve 120. The constraint part 1211 can provide a fixed constraint on the adapter 130 from the radial direction, preventing the adapter 130 from shifting or shaking radially when under force. This allows the external force to be transmitted more evenly through the constraint part 1211, preventing concentrated loads from acting on the shell 110. This even force transmission can effectively avoid the risk of disintegration of the rotating sleeve 120, which could lead to concentrated impacts on the shell 110. This prevents the shell 110 from cracking or disintegrating due to excessive local stress, ensuring the safety of the overall structure.

[0029] In one implementation, please refer to [link / reference needed]. Figure 4 The outer periphery of the rotating component 121 is provided with multiple anti-slip protrusions 1212. The number of anti-slip protrusions 1212 can be two, three, or even more, without limitation. These multiple anti-slip protrusions 1212 are distributed circumferentially. The multiple anti-slip protrusions 1212 distributed circumferentially increase the frictional resistance between the hand and the surface of the rotating component 121. When the fingers pinch the rotating component 121 and rotate it, the anti-slip protrusions 1212 increase the contact area between the fingers and the rotating component 121. Even if the friction decreases due to sweat or oil on the hand, the anti-slip protrusions 1212 can prevent the hand from slipping off the surface of the rotating component 121 during rotation, ensuring that the operator can apply force stably and accurately control the rotation angle and speed of the rotating component 121, thus guaranteeing operational stability and safety.

[0030] In the embodiments of this application, please continue to refer to Figure 3 The mounting structure 100 also includes a seal 123, which is fitted onto the outer surface of the rotating sleeve 120. The seal 123 cooperates with the housing 110 or the adapter 130 to generate damping friction. For example, the seal 123 is fitted onto the outer surface of the rotating sleeve 120, and the seal 123 cooperates with the housing 110 to generate damping friction. This damping friction creates moderate resistance when the rotating sleeve 120 rotates, slowing down the rotation speed of the rotating sleeve 120. When adjusting the direction of the insertion tube 210, the operator can more accurately control the rotation angle with a slow rotation rhythm, avoiding positional deviation of the insertion tube 210 due to excessive rotation, and improving operational accuracy.

[0031] Of course, in some other cases, the seal 123 and the adapter 130 cooperate with each other, and the seal 123 can generate damping friction with the adapter 130. The damping friction can slow down the rotation speed of the rotating sleeve 120. When adjusting the direction of the insertion tube 210, the operator can more accurately control the rotation angle by rotating slowly, avoiding deviation of the insertion tube 210 position due to excessive rotation, and improving the accuracy of operation.

[0032] More specifically, please continue reading Figure 5The sealing element 123 includes a first sealing element 1231 and a second sealing element 1232, which are spaced apart along the axial direction of the rotating sleeve 120 and each cooperates with either the housing 110 or the adapter 130. The first sealing element 1231 and the second sealing element 1232 improve the sealing performance of the mounting structure 100, preventing fluid leakage from the operating handle 300. The first sealing element 1231 and the second sealing element 1232 can constrain the adapter 130 from two different axial positions of the rotating sleeve 120, preventing the rotating sleeve 120 from axially shifting or partially deviating relative to the adapter 130. Simultaneously, the damping friction further optimizes the stability of the rotation speed, making the rotation process smoother.

[0033] Please refer again to the actual example in this application. Figure 3 The outer surface of the rotating sleeve 120 may be provided with a mating structure 122, which can axially constrain the seal 123. For example, the mating structure 122 can be a groove structure, and the seal 123 can be a sealing ring fitted within the groove structure. The mating structure 122 can axially constrain the seal 123, preventing it from sliding axially when the rotating sleeve 120 rotates or is subjected to external force, ensuring that the seal 123 always remains in a preset position mating with the housing 110 or the adapter 130. This allows the seal 123 to be stably connected to the rotating sleeve 120, thereby continuously achieving damping friction and sealing effects, and preventing displacement of the seal 123 from affecting the stability and functionality of the overall structure.

[0034] To achieve the above and other related objectives, this application also provides an operating handle 300, please refer to [link / reference]. Figure 7 The operating handle 300 includes the mounting structure 100 as described above. This gives the operating handle 300 the beneficial effects of any of the aforementioned solutions, which will not be elaborated further here.

[0035] To achieve the above and other related objectives, this application also provides an endoscope 1, please refer to [link to endoscope]. Figure 7 The endoscope 1 includes the operating handle 300 and the insertion part 200 as described above, thus enabling the endoscope 1 to possess the beneficial effects of any of the aforementioned solutions, which will not be elaborated further here. The insertion tube 210 of the insertion part 200 is connected to the rotating sleeve 120. The endoscope 1 can be a bronchoscope, pyeloscope, esophagoscope, gastroscope, colonoscope, otoscope, rhinoscope, oral endoscope, laryngoscope, colposcope, laparoscope, arthroscope, etc. This application embodiment does not specifically limit the type of endoscope 1.

[0036] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0037] Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0038] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. An insertion section mounting structure for an endoscope, characterized in that, The mounting structure of the insertion part includes a housing, a rotating sleeve, and a protective sleeve, wherein: The rotating sleeve is adapted to be connected to the insertion tube of the endoscope so as to drive the insertion tube to rotate relative to the housing; The housing has an assembly hole, the sleeve is used to accommodate and constrain the insertion tube, a portion of the rotating sleeve is located inside the sleeve, and another portion extends out of the sleeve and is installed in the assembly hole, the rotating sleeve being rotatably disposed relative to the housing.

2. The mounting structure of the insertion part according to claim 1, characterized in that, The mounting structure of the insertion part further includes an adapter, which is disposed between the rotating sleeve and the wall of the assembly hole, wherein: The adapter has a channel, the rotating sleeve is installed in the channel, and the adapter is a closed structure through which the channel passes. And / or, along the axial direction of the housing, the adapter is positioned against the housing.

3. The mounting structure of the insertion part according to claim 2, characterized in that, The adapter is provided with a limiting part at its proximal end, and the limiting part is circumferentially limited by the housing.

4. The mounting structure of the insertion part according to claim 2, characterized in that, The mounting structure of the insertion part also includes a rotating component, which is connected to the rotating sleeve. The rotating component is located outside the housing and along the axial direction of the assembly hole. The rotating component is positioned to stop against the housing.

5. The mounting structure of the insertion part according to claim 4, characterized in that, The rotating component is provided with a constraint part, which limits and abuts against the adapter in the radially inward direction along the rotating sleeve.

6. The mounting structure of the insertion part according to claim 5, characterized in that, The outer periphery of the rotating component is provided with multiple anti-slip protrusions, which are distributed at intervals along the circumferential direction. And / or, the housing has a distal end, the mounting hole is formed at the distal end, and the outer diameter of the rotating member is larger than the outer diameter of the distal end; And / or, the constraint portion is a groove formed at the proximal end of the rotating member, and the adapter is embedded in the constraint portion.

7. The mounting structure of the insertion part according to claim 5, characterized in that, The mounting structure of the insertion part also includes a sealing element, which is sleeved on the outer surface of the rotating sleeve. The sealing element cooperates with the housing or the adapter and generates damping friction.

8. The mounting structure of the insertion part according to claim 7, characterized in that, The sealing element includes a first sealing element and a second sealing element, which are distributed at intervals along the axial direction of the rotating sleeve and each cooperates with one of the housing or the adapter. And / or, the outer surface of the rotating sleeve is provided with a mating structure, which can axially constrain the sealing element.

9. An operating handle, characterized in that, The mounting structure includes the insertion part as described in any one of claims 1-8.

10. An endoscope, characterized in that, The endoscope includes an operating handle and an insertion part as described in claim 9, wherein the insertion tube of the insertion part is connected to the rotating sleeve.

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