Handle shell assembly, handle, and endoscope

Abstract

The application provides a handle shell assembly, a handle and an endoscope, and belongs to the technical field of endoscopes. The handle shell assembly comprises a shell, a damping element and a rotating sleeve. The rotating sleeve is sleeved outside the shell and can rotate relative to the shell with the axis of the rotating sleeve as the rotation axis. The damping element is located between the rotating sleeve and the shell, and the rotating sleeve and the shell extrude the damping element. The compression amount of the partial area of the damping element is greater than that of the remaining area. By setting the compression amount of the partial area of the damping element to be greater than that of the other area, the area with a greater compression amount of the damping element is subjected to greater extrusion force, and a better damping effect can be generated, thereby improving the damping effect between the rotating sleeve and the handle, stabilizing the position of the rotating sleeve, reducing the risk of sliding of the rotating sleeve relative to the shell, and ensuring normal use of the endoscope.

Description

Technical Field

[0001] This application relates to the field of endoscope technology, specifically to a handle housing assembly, a handle, and an endoscope. Background Technology

[0002] Endoscopes are widely used in modern medicine. An endoscope includes an insertion part and a handle. The proximal end of the insertion part is fixed to an adapter. The adapter is rotatably installed inside the handle. The handle is covered with a rotating sleeve. The rotating sleeve and the adapter are in a circumferential upper limit fit. By rotating the rotating sleeve, the adapter is driven to rotate, thereby driving the insertion part to rotate.

[0003] A damping ring is installed between the rotating sleeve and the handle to provide damping. During the rotation of the insertion part by the rotating sleeve, the rotating sleeve can stop rotating at any rotation angle. The damping ring stabilizes the position of the rotating sleeve, thereby maintaining the rotation angle of the insertion part. However, in existing products, the damping effect between the rotating sleeve and the handle is poor. After the rotating sleeve stops rotating, it is easy for it to slip relative to the handle, affecting the use of the endoscope. Summary of the Invention

[0004] The purpose of this application is to provide a handle housing assembly, a handle, and an endoscope to solve the aforementioned technical problems existing in the prior art.

[0005] This application is implemented as follows: In a first aspect, embodiments of this application provide a handle housing assembly for use in an endoscope. The handle housing assembly includes a housing, a damping element, and a rotating sleeve. The rotating sleeve is fitted outside the housing and can rotate relative to the housing with its axis as the rotation axis. The damping element is located between the rotating sleeve and the housing, and the rotating sleeve and the housing compress the damping element. The compression amount of a portion of the damping element is greater than the compression amount of the remaining portion.

[0006] Secondly, embodiments of this application provide a handle, including the handle housing assembly provided in the embodiments of the first aspect.

[0007] Thirdly, embodiments of this application provide an endoscope including the handle provided in the second aspect embodiment.

[0008] The technical solutions provided by the embodiments of this application can achieve the following beneficial effects: In the embodiments of this application, a damping element is disposed between the rotating sleeve and the housing. The damping element is compressed, increasing the friction between the rotating sleeve and the housing. This allows the rotating sleeve to release after rotating relative to the housing at a certain angle, and the relative position between the rotating sleeve and the housing can remain stable. By setting the compression amount of some areas of the damping element to be greater than that of other areas, the area with a larger compression amount of the damping element receives greater compressive force, which can produce a better damping effect. This improves the damping effect between the rotating sleeve and the handle, stabilizes the position of the rotating sleeve, reduces the risk of the rotating sleeve sliding relative to the housing, and ensures the normal use of the endoscope. Attached Figure Description

[0009] 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.

[0010] Figure 1 This is a schematic diagram of the overall structure of the handle shell assembly provided in some embodiments of this application; Figure 2 This is a disassembled schematic diagram of the handle shell assembly provided in some embodiments of this application; Figure 3 This is a cross-sectional view of a handle housing assembly provided in some embodiments of this application; Figure 4 These are schematic diagrams of the shell structure provided in some embodiments of this application; Figure 5 This application is about Figure 4 Detailed view of point A; Figure 6 This is a schematic diagram of the fit between the housing and the damping element provided in some embodiments of this application; Figure 7 This is a cross-sectional view of the rotating sleeve provided in some embodiments of this application; Figure 8 This is a schematic diagram of the structure of a damping element provided in some embodiments of this application; Figure 9 This is a schematic diagram showing the fit of the rotating sleeve, adapter, and damping element provided in some embodiments of this application.

[0011] In the diagram: 100-housing, 110-protrusion, 120-mounting groove, 200-damping element, 210-reinforcing part, 300-rotating sleeve, 310-positioning groove, 400-adapter, 500-insertion part. Detailed Implementation

[0012] 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.

[0013] 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. 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.

[0014] In various embodiments of this application, "proximal end" and "distal end" refer to the position of the endoscope and its accessories relative to the user in the usage environment. The end closer to the user is designated as the "proximal end", and the end farther from the user is designated as the "distal end".

[0015] This application provides a handle housing assembly for use in endoscopes, which can be referred to as [reference needed]. Figures 1 to 3 As shown, the handle housing assembly includes a housing 100, a damping element 200, and a rotating sleeve 300. The rotating sleeve 300 is sleeved outside the housing 100 and can rotate relative to the housing 100 with its axis as the rotation axis. The damping element 200 is located between the rotating sleeve 300 and the housing 100, and the rotating sleeve 300 and the housing 100 compress the damping element 200. The compression amount of a part of the damping element 200 is greater than the compression amount of other parts.

[0016] The housing 100 is the handle of the endoscope. The rotating sleeve 300 is fitted over the housing 100. The rotating sleeve 300 is mainly used to fix the adapter 400, which is fixed to the proximal end of the insertion part 500. Rotating the rotating sleeve 300 rotates the adapter 400, thereby rotating the insertion part 500. The damping element 200 is located between the housing 100 and the rotating sleeve 300. It is squeezed by both, increasing the friction between the rotating sleeve 300 and the housing 100. This ensures that even if the operator releases the rotating sleeve 300 after it has rotated a certain angle relative to the housing 100, the position of the rotating sleeve 300 on the housing 100 remains stable, thus ensuring the stability of the insertion part 500.

[0017] The damping element 200 is a flexible structural component that can be compressed when subjected to pressure. The greater the amount of compression, the stronger the damping effect it can provide.

[0018] In the embodiments provided in this application, when the damping element 200 is squeezed by the rotating sleeve 300 and the housing 100, the compression amount of some areas of the damping element 200 is larger, while the compression amount of other areas is smaller. The area with larger compression amount is subjected to greater extrusion force and can produce a greater damping effect, thereby improving the damping effect between the housing 100 and the rotating sleeve 300, stabilizing the position of the rotating sleeve 300, reducing the risk of the rotating sleeve 300 sliding relative to the housing 100, ensuring the stability of the position of the insertion part 500 corresponding to the rotating sleeve 300, and ensuring the normal use of the endoscope.

[0019] In some specific embodiments, the compressive force is increased by enhancing the compressive effect on the damping element 200. See reference... Figures 3 to 5 As shown, the surface of the rotating sleeve 300 or the housing 100 that contacts the damping element 200 is provided with a protrusion 110, which presses against the damping element 200. (Reference) Figure 6 As shown, due to the presence of the protrusion 110, the protrusion 110 will push up the damping element 200. Between the rotating sleeve 300 and the housing 100, since the protrusion 110 occupies part of the space, the compression of the damping element 200 corresponding to the protrusion 110 increases. The protrusion 110 can further compress the damping element 200, so that the compression of the area of ​​the damping element 200 in contact with the protrusion 110 is greater than that of other areas of the damping element 200 that are not in contact with the protrusion 110.

[0020] The protrusion 110 enhances the compression effect on the damping element 200, thereby increasing the compression amount of the damping element 200 and strengthening the damping effect between the rotating sleeve 300 and the housing 100. The protrusion 110 can be provided on either the rotating sleeve 300 or the housing 100. It should be noted that the specific location of the protrusion 110 must correspond to the damping element 200 to avoid misalignment between the protrusion 110 and the damping element 200.

[0021] In specific implementation, the installation position of the protrusion 110 can be determined by restricting the installation position of the damping element 200 on the rotating sleeve 300 or the housing 100. For example, a mounting groove 120 for the damping element 200 can be provided on the rotating sleeve 300 or the housing 100 to determine the installation position of the damping element 200, thereby facilitating the determination of the installation position of the protrusion 110. The mounting groove 120 and the protrusion 110 can be provided on the same component, or they can be provided on the housing 100 and the rotating sleeve 300 respectively. Alternatively, the damping element 200 can be directly fixed to the rotating sleeve 300 or the housing 100, thereby facilitating the determination of the installation position of the protrusion 110. The damping element 200 and the protrusion 110 can be provided on the same component, or they can be provided on the housing 100 and the rotating sleeve 300 respectively.

[0022] In some preferred embodiments of this application, one of the rotating sleeve 300 and the housing 100 is provided with a protrusion 110, and the surface of the other that contacts the damping element 200 is provided with a positioning groove 310. See also... Figure 3 As shown, when the rotating sleeve 300 rotates relative to the housing 100, the protrusion 110 can rotate to the area corresponding to the positioning groove 310 to squeeze part of the damping element 200 into the positioning groove 310.

[0023] The protrusion 110 and the positioning groove 310 are respectively disposed on the rotating sleeve 300 and the housing 100. The positioning groove 310 is located on the rotation path of the protrusion 110. During the relative rotation of the rotating sleeve 300 and the housing 100, the protrusion 110 can rotate into the positioning groove 310. When the protrusion 110 rotates to the area corresponding to the positioning groove 310, the protrusion 110 can squeeze the damping element 200 into the positioning groove 310. The increased space of the positioning groove 310 increases the assembly space of the damping element 200, reduces the amount of compression of the damping element 200, and can significantly change the operating feel of the rotating sleeve 300. The positioning groove 310 can cooperate with the protrusion 110 and the damping element 200 to provide a positioning function during the rotation of the rotating sleeve 300, so that the operator can distinguish the position of the rotating sleeve 300 by operating feel.

[0024] Even if the protrusion 110 rotates to the position corresponding to the positioning groove 310, the compression of the damping element 200 corresponding to the protrusion 110 decreases, and the damping effect between the rotating sleeve 300 and the housing 100 weakens. However, the side walls of the positioning groove 310 restrict the movement of the protrusion 110, and the protrusion 110 cannot rotate out of the positioning groove 310 without the action of external force. Therefore, the position of the rotating sleeve 300 on the housing 100 is also stable at this time.

[0025] In the embodiments provided in this application, the positioning groove 310, the protrusion 110 and the damping element 200 are used to ensure the damping effect between the rotating sleeve 300 and the housing 100, stabilize the position of the rotating sleeve 300 on the housing 100, and also play a positioning role, making it easy for the operator to distinguish the position of the rotating sleeve 300 on the housing 100.

[0026] In a specific implementation, the protrusion 110 can be rotated to the position in the positioning groove 310 and set as the initial rotation position of the rotating sleeve 300. That is, at this position, the rotating sleeve 300 can drive the insertion part 500 to rotate left and right.

[0027] Furthermore, at least two protrusions 110 are provided, and all protrusions 110 are evenly distributed along the circumference of the rotating sleeve 300. The damping element 200 simultaneously contacts all protrusions 110. At least two positioning grooves 310 are provided, and all positioning grooves 310 are evenly distributed along the circumference of the rotating sleeve 300, with the number of positioning grooves 310 being the same as the number of protrusions 110. During the rotation of the rotating sleeve 300, when one protrusion 110 rotates into a positioning groove 310, the other protrusions 110 also rotate into positioning grooves 310 simultaneously. By limiting the number of protrusions 110, the rotation angle of the rotating sleeve 300 is determined, and the operator can judge the rotation angle of the rotating sleeve 300 by the change in the operating feel of the rotating sleeve 300. For example, two protrusions 110 and two positioning grooves 310 are provided, and the two protrusions 110 can simultaneously rotate into their corresponding positioning grooves 310, as can be seen from the example. Figure 3 As shown.

[0028] In some specific embodiments, the number of protrusions 110 can be reduced, and the number of protrusions 110 can be less than the number of positioning grooves 310. However, it should be noted that all protrusions 110 can rotate into the positioning grooves 310 at the same time.

[0029] In some embodiments of this application, reference may be made to Figure 3 and Figure 9 As shown, the positioning groove 310 is disposed on the inner surface of the rotating sleeve 300, and the protrusion 110 is disposed on the outer surface of the housing 100. The proximal region of the positioning groove 310 is used to cooperate with the protrusion 110, and the distal region of the positioning groove 310 is used to accommodate part of the adapter 400 so as to limit the cooperation with the adapter 400 in the circumferential direction of the rotating sleeve 300. The adapter 400 is used to connect the insertion part 500 of the endoscope and install it to the distal end of the housing 100.

[0030] The positioning groove 310 can mate not only with the protrusion 110 but also with the adapter 400, thus simplifying the structure of the rotating sleeve 300 and avoiding the need for excessive grooves on the adapter 400. Furthermore, the installation positions of the protrusion 110 and the damping element 200 can be determined based on the existing sheath structure. Therefore, the technical solution of this application can be achieved simply by modifying the structure of the housing 100 and adding the protrusion 110 to the housing 100; the entire process is simple and easy to operate.

[0031] In some preferred embodiments of this application, the width of the positioning groove 310 gradually increases or decreases along the direction from the distal end to the proximal end of the rotating sleeve 300. The width of the positioning groove 310 is not constant, but rather an expanding or contracting groove. During the rotation of the rotating sleeve 300, when the protrusion 110 rotates out of the positioning groove 310, the sidewall in contact between the expanding groove structure positioning groove 310 and the damping element 200 supported by the protrusion 110 is inclined. The circumferential resistance provided by the positioning groove 310 to the damping element 200 is distributed obliquely, making it easier for the rotating sleeve 300 to rotate and for the protrusion 110 to rotate out of the positioning groove 310, thus balancing the rotational response after the improvement of the damping effect.

[0032] The rotating sleeve 300 can make its rotation feel change significantly during rotation by cooperating with the protrusion 110 and the positioning groove 310, making it easy to distinguish the rotation angle. At the same time, due to the setting of the gradually narrowing or expanding positioning groove 310, the protrusion 110 can also easily rotate out of the positioning groove 310, making it easier to operate the rotating sleeve 300 and improving the rotation response of the rotating sleeve 300.

[0033] In addition, the gradually expanding or contracting positioning groove 310 structure along the direction from the far end to the near end of the rotating sleeve 300 can expand the space of the positioning groove 310 to a certain extent. After the protrusion 110 squeezes the damping element 200 into the positioning groove 310, the positioning groove 310 can provide a relatively larger accommodating space for the protrusion 110 and the damping element 200 as a whole, which can improve the damping effect and also prevent the damping ring from being crushed.

[0034] In some preferred embodiments, the positioning groove 310 is disposed on the inner surface of the rotating sleeve 300, and the protrusion 110 is disposed on the outer surface of the housing 100. The width of the positioning groove 310 gradually increases along the direction from the distal end to the proximal end of the rotating sleeve 300, as can be seen from... Figure 7 As shown, the size of the proximal opening of the rotating sleeve 300 is larger than the size of its distal opening. The closer the positioning groove 310 is to the proximal end of the rotating sleeve 300, the wider it is, making it easier to process the positioning groove 310.

[0035] Moreover, the wider the near end of the positioning groove 310, the easier it is to insert the adapter 400 when the rotating sleeve 300 is assembled, especially when the positioning groove 310 needs to be matched with the adapter 400 for limiting.

[0036] The damping element 200 provided in this application embodiment can be a strip structure. Preferably, the damping element 200 can be a ring structure, directly using a damping ring. The damping element 200 is sleeved on the outside of the housing 100, and the damping effect between the rotating sleeve 300 and the housing 100 is more balanced.

[0037] In some implementations, reference Figure 4 and Figure 5 As shown, a mounting groove 120 is provided on the outer surface of the housing 100 or the inner surface of the rotating sleeve 300. The protrusion 110 is located within the mounting groove 120, and the damping element 200 is mounted in the mounting groove 120. The mounting groove 120 restricts the position of the damping element 200 in the axial direction of the housing 100, preventing the damping element 200 from moving arbitrarily along the axial direction of the housing 100, which would cause misalignment between the damping element 200 and the protrusion 110 and affect the damping effect. The damping element 200 can be directly assembled into the mounting groove 120 or glued and fixed to the mounting groove 120.

[0038] In this embodiment, the protrusion 110 directly contacts the damping element 200. Preferably, the surface of the protrusion 110 that contacts the damping element 200 is a smooth curved structure to avoid the damping element 200 being damaged due to force concentration during the process of the protrusion 110 pressing the damping element 200.

[0039] In the radial direction of the housing 100, the size of the protrusion 110 is between 1 / 2 and 1 times the size of the damping element 200. The size of the protrusion 110 cannot be too small. If the protrusion 110 is too small, the amount of compression on the damping element 200 will be small, which will affect the damping effect of the damping element 200. If the protrusion 110 is too large, the amount of compression on the damping element 200 will be large, which will generate too much resistance and hinder the rotation of the rotating sleeve 300.

[0040] In other embodiments of this application, the damping element 200 has a reinforcing portion 210, the size of which is larger than the size of other portions of the damping element 200 in the radial direction of the housing 100, as can be seen from [reference]. Figure 8 As shown. The reinforcing part 210 of the damping element 200 is relatively large. When it is squeezed by the rotating sleeve 300 and the housing 100, the compression of the reinforcing part 210 is large, which can provide greater damping and produce a stronger damping effect, thereby stabilizing the relative position of the rotating sleeve 300 on the housing 100.

[0041] In some preferred embodiments, positioning grooves 310 may be provided on one or both of the inner surface of the rotating sleeve 300 and the outer surface of the housing 100. As the rotating sleeve 300 rotates, the reinforcing part 210 of the damping element 200 can rotate into the positioning groove 310. The positioning groove 310 provides more ample assembly space for the reinforcing part 210, reducing the compression of the reinforcing part 210. This weakens the damping effect of the damping element 200, changes the operating feel of the rotating sleeve 300, and allows the operator to clearly distinguish the rotation position of the rotating sleeve 300.

[0042] Compared to providing a protrusion 110 on the housing 100 or the rotating sleeve 300, providing a reinforcing part 210 on the damping element 200 allows the existing housing 100 and rotating sleeve 300 to be directly used to assemble the improved damping element 200 onto the housing 100. This operation is more convenient, simpler, and cheaper, requires less modification to the existing production line, and is easier to operate.

[0043] A single reinforcing section 210 can be provided on the damping element 200, along with at least two positioning grooves 310. These positioning grooves 310 are evenly distributed circumferentially around the housing 100. The rotation angle of the rotating sleeve 300 can be discerned by observing the change in feel when operating the rotating sleeve 300 through the angle between two adjacent positioning grooves 310. Alternatively, at least two reinforcing sections 210 can be provided, evenly distributed circumferentially around the housing 100, with each reinforcing section 210 corresponding to a positioning groove 310, thus balancing the damping effect between the housing 100 and the rotating sleeve 300.

[0044] This application also provides a handle, including the handle shell assembly provided in any of the above embodiments, which is beneficial to improving the damping effect between the rotating sleeve 300 and the shell 100.

[0045] This application also provides an endoscope, including the handle provided in the above embodiments. The handle is the handle of the endoscope, and an insertion part 500 is provided at the distal end. An adapter 400 is fixed at the proximal end of the insertion part 500. (See reference...) Figure 1 and Figure 2 As shown.

[0046] The endoscope in this embodiment may be a digestive endoscope, bronchoscope, nephroscope, esophagoscope, gastroscope, colonoscope, otoscope, rhinoscope, oral endoscope, laryngoscope, colposcope, laparoscope, arthroscope, etc. This embodiment does not impose specific restrictions on the type of endoscope.

[0047] 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.

[0048] 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. A handle shell assembly, characterized in that, For use in endoscopes, the handle housing assembly includes a housing (100), a damping element (200), and a rotating sleeve (300). The rotating sleeve (300) is fitted over the housing (100) and can rotate relative to the housing (100) with its axis as the rotation axis. The damping element (200) is located between the rotating sleeve (300) and the housing (100), and the rotating sleeve (300) and the housing (100) compress the damping element (200). The compression of a portion of the damping element (200) is greater than the compression of the remaining portions.

2. The handle shell assembly according to claim 1, characterized in that, The rotating sleeve (300) or the housing (100) has a protrusion (110) on the surface that contacts the damping element (200), and the protrusion (110) presses against the damping element (200).

3. A handle shell assembly according to claim 2, characterized in that, One of the rotating sleeve (300) and the housing (100) is provided with the protrusion (110), and the other has a positioning groove (310) on its surface that contacts the damping element (200). When the rotating sleeve (300) rotates relative to the housing (100), the protrusion (110) can rotate to the area corresponding to the positioning groove (310) to squeeze part of the damping element (200) into the positioning groove (310).

4. A handle housing assembly according to claim 3, characterized in that, At least two protrusions (110) are provided, and all the protrusions (110) are evenly distributed along the circumference of the rotating sleeve (300). The damping element (200) contacts all the protrusions (110) at the same time. At least two positioning grooves (310) are provided, and all the positioning grooves (310) are evenly distributed along the circumference of the rotating sleeve (300). The number of positioning grooves (310) is the same as the number of protrusions (110). And / or, the positioning groove (310) is disposed on the inner surface of the rotating sleeve (300), the protrusion (110) is disposed on the outer surface of the housing (100), the proximal region of the positioning groove (310) is used to cooperate with the protrusion (110), and the distal region of the positioning groove (310) is used to accommodate a portion of the adapter (400) to limit the engagement with the adapter (400) in the circumferential direction of the rotating sleeve (300), and the adapter (400) is used to connect the insertion part (500) of the endoscope and install it to the distal end of the housing (100).

5. A handle housing assembly according to claim 3, characterized in that, Along the direction from the distal end to the proximal end of the rotating sleeve (300), the width of the positioning groove (310) gradually increases or gradually decreases.

6. A handle housing assembly according to claim 4 or 5, characterized in that, The positioning groove (310) is disposed on the inner surface of the rotating sleeve (300), and the protrusion (110) is disposed on the outer surface of the housing (100). The width of the positioning groove (310) gradually increases along the direction from the far end to the near end of the rotating sleeve (300).

7. A handle housing assembly according to claim 2, characterized in that, The damping element (200) is a ring structure and is sleeved on the outside of the housing (100); And / or, the outer surface of the housing (100) or the inner surface of the rotating sleeve (300) is provided with a mounting groove (120), the protrusion (110) is located in the mounting groove (120), and the damping element (200) is installed in the mounting groove (120). And / or, the surface of the protrusion (110) that contacts the damping element (200) is a smooth curved surface structure; And / or, in the radial direction of the housing (100), the size of the protrusion (110) is between 1 / 2 and 1 times the size of the damping element (200).

8. A handle housing assembly according to claim 1, characterized in that, The damping element (200) has a reinforcing portion (210) that is larger in size than the other portions of the damping element (200) in the radial direction of the housing (100).

9. A handle, characterized in that, Includes the handle housing assembly as described in any one of claims 1-8.

10. An endoscope, characterized in that, Includes a handle as described in claim 9.

Images