Connection structure of endoscope and endoscope

Abstract

This application provides a connection structure for an endoscope and an endoscope itself. The connection structure includes a tip and a curved portion; the tip and the curved portion are connected by at least one connecting portion; the connecting portion includes a first connecting portion; the outer circumferential side of one end of the tip and the outer circumferential side of one end of the curved portion are snapped together by the first connecting portion; the first connecting portion includes a locking block and a locking groove; the locking block and the locking groove are respectively located on the outer circumferential side near the tip and the outer circumferential side near the curved portion; when the circumferential side of the tip rotates relative to the circumferential side of the curved portion, the locking block engages with the locking groove. Embodiments of this application reduce the difficulty of disassembling the endoscope.

Description

Technical Field

[0001] This application belongs to the field of endoscope technology, and more specifically, relates to an endoscope connection structure and an endoscope. Background Technology

[0002] Endoscopes and similar devices are widely used in medical diagnostics and industrial flaw detection. An endoscope generally consists of a body, display, image processor, and carriage. The body comprises three parts: the insertion section, the light guide section, and the operating section. The endoscope has a tip at the front of the insertion section, which includes the instrument channel, imaging, illumination, and water / air channels. The tip also has numerous screw holes for securing the illumination fiber optic cable and connecting to the subsequent curved section.

[0003] However, in related technologies, the tip is prone to malfunctions and frequently requires maintenance. The tip contains numerous pipe channels, its structure is relatively complex, and the tip and bend are connected by multiple screws, making disassembly difficult. Utility Model Content

[0004] To improve or solve the technical problem of the difficulty in disassembling endoscopes in related technologies, this application provides an endoscope connection structure and an endoscope.

[0005] In a first aspect, embodiments of this application provide a connection structure for an endoscope, including a tip portion and a curved portion; the tip portion and the curved portion are connected by at least one connecting portion; the connecting portion includes a first connecting portion. The outer circumferential side of one end of the tip portion and the outer circumferential side of one end of the curved portion are connected by a first connecting portion; the first connecting portion includes a locking block and a locking groove; the locking block and the locking groove are respectively located on the outer circumferential side of one end near the tip portion and on the outer circumferential side of one end near the curved portion. When the tip rotates circumferentially relative to the curved portion, the locking block engages with the locking groove.

[0006] The above technical solution uses a snap-fit ​​connection between the tip and the curved part through a first connecting part. When the tip rotates circumferentially relative to the curved part, the snap-fit ​​block engages with the slot to achieve the connection between the tip and the curved part. The tip can be disassembled by performing the opposite operation on the tip and the curved part. Compared with the screw connection method used in related technologies, this method can achieve more convenient disassembly and installation, thereby reducing the difficulty of disassembling the endoscope.

[0007] Furthermore, the connecting part also includes a second connecting part; one end of the tip portion and one end of the bent portion are detachably connected through the second connecting part; the second connecting part includes a screw, a threaded groove and a hole; the threaded groove and the hole are respectively provided at one end of the tip portion and one end of the bent portion; when the locking block is engaged in the locking groove, the screw passes through the hole and is threadedly connected to the threaded groove.

[0008] The above technical solution adds a second connecting part to the first connecting part, so that the tip and the bent part can be connected by a locking block and a locking groove on the one hand, and by a screw, a threaded groove and a threaded hole on the other hand, thereby enhancing the stability of the connection between the tip and the bent part.

[0009] Furthermore, the locking block is located on the circumferential outer side of one end near the tip end; the locking groove is located on the circumferential outer side of one end near the bend; the threaded groove is located at one end of the tip end, the opening of the threaded groove is located on the outer side of one end near the tip end, and the hole is located on the outer side of one end near the bend.

[0010] The above technical solution optimizes the positions of the locking blocks, locking slots, threaded grooves, and holes, ensuring that the locking blocks, locking slots, threaded grooves, and holes do not conflict with existing components on the tip and curved sections. It makes full use of the original space on the tip and curved sections for arrangement, thereby improving the space utilization efficiency of the tip and curved sections.

[0011] Furthermore, the slot includes a first slot and a second slot; one end of the first slot and one end of the second slot are connected at an included angle; when one end of the tip extends into one end of the curved portion at a first position, the locking block is locked at one end of the first slot; when the tip rotates circumferentially relative to the curved portion to a second position, the locking block is screwed into the second slot at the first position, and the screw passes through the hole and is threadedly connected to the threaded groove.

[0012] The above technical solution employs a non-linear slot, enabling a two-stage connection. Specifically, when one end of the tip extends into the first position of the bent portion, the locking block slides into and engages with the first slot. After the tip reaches the first position within the first slot, its circumferential direction relative to the bent portion rotates to a second position, thus locking the locking block into the slot. This method of slot design better secures the locking block and restricts its circumferential rotation. When the tip rotates to the second position relative to the bent portion, the screw, threaded groove, and hole form a threaded connection, resulting in stronger axial forces between the tip and the bent portion, further enhancing the stability of the connection between them.

[0013] Furthermore, the outer diameter of one end of the tip is smaller than the inner diameter of one end of the bend; the difference between the inner diameter of one end of the bend and the outer diameter of one end of the tip is 0.01-0.1 mm.

[0014] The above technical solution, by constraining the difference between the inner diameter of one end of the curved part and the outer diameter of one end of the tip, allows the tip to have a stronger bonding force after it extends into the curved part during assembly, which facilitates the quick and smooth assembly of the tip and the curved part.

[0015] Furthermore, the difference between the width of the first groove and the outer diameter of the card block is 0.01-0.1 mm; the difference between the width of the second groove and the outer diameter of the card block is 0.01-0.1 mm.

[0016] The above technical solution, by constraining the difference between the width of the first groove and the outer diameter of the card block and the difference between the width of the second groove and the outer diameter of the card block, allows the second block to have a stronger bonding force after entering the first and second grooves during assembly, which is conducive to the rapid and smooth assembly of the tip and the curved part.

[0017] Furthermore, the rotation angle of the circumferential rotation of the tip to the second position is 3-30°.

[0018] The above technical solution, by constraining the circumferential rotation angle of the tip, can avoid insufficient force of the second groove on the locking block due to an excessively small rotation angle, and avoid reducing the rigidity of the second groove due to an excessively large rotation angle.

[0019] Furthermore, the length of the second groove in the circumferential direction of the curved portion is equal to or greater than the arc length of the tip corresponding to the rotation angle.

[0020] The above technical solution allows the change in arc length generated after the tip is rotated circumferentially by a certain angle to match the length of the second groove in the circumferential direction of the curved part, thereby making it easier to disassemble and install the tip and the curved part.

[0021] Furthermore, a boss is provided on the outer circumferential side of one end near the tip; when the locking block is screwed into the second groove, the boss contacts one end of the curved portion.

[0022] The above technical solution allows the boss to contact the bent portion after the tip and the bent portion are connected, preventing the tip and the bent portion from moving in the axial direction, thereby enhancing the stability of the connection between the tip and the bent portion.

[0023] Secondly, embodiments of this application provide an endoscope including the aforementioned connection structure.

[0024] This application provides an endoscope connection structure and an endoscope, in which the tip and the curved part are connected by a first connecting part through a snap-fit. When the tip rotates circumferentially relative to the curved part, the locking block engages with the slot to achieve the connection between the tip and the curved part. The tip can be disassembled by performing the opposite operation on the tip and the curved part. Compared with the screw connection method of related technologies, this method can achieve more convenient disassembly and installation, thereby reducing the difficulty of disassembling the endoscope. Attached Figure Description

[0025] 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.

[0026] Figure 1 This is a schematic diagram of the overall structure of an endoscope.

[0027] Figure 2 for Figure 1 A magnified view of part A in the image.

[0028] Figure 3 This is a schematic diagram of the overall structure of the tip.

[0029] Figure 4 for Figure 3 A schematic diagram of the right-side structure.

[0030] Figure 5 for Figure 3 A schematic diagram of the structure viewed from below.

[0031] Figure 6 for Figure 5 A schematic diagram of the structure of section AA in the middle.

[0032] Figure 7 This is a schematic diagram of the curved section.

[0033] The attached figures are labeled as follows: 1-Tip end, 2-Bend portion, 3-Slot, 4-Boss, 5-Edge, 6-First position, 7-Slot block, 8-Second position, 9-Hole, 10-Illumination unit channel, 11-Instrument channel, 12-Imaging unit channel, 13-Secondary water supply channel, 14-Water vapor channel, 15-Threaded hole, 16-Threaded groove, 17-First groove, 18-Second groove, 19-First connecting portion. Detailed Implementation

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

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

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

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

[0038] Endoscopes and similar devices are widely used in medical diagnostics and industrial flaw detection. An endoscope generally consists of a body, display, image processor, and carriage. The body comprises three parts: the insertion section, the light guide section, and the operating section. The endoscope has a tip section at the front of the insertion section, which includes instrument channels, imaging, illumination, and water / air channels. The tip section also has numerous screw holes for fixing the illumination fiber optic cable and connecting to the subsequent bend section. Therefore, the tip section is relatively complex, containing numerous tubing channels, and is prone to malfunctions requiring maintenance. The layout and ease of disassembly of the tip section directly affect the economics of endoscope maintenance.

[0039] To improve or solve the technical problem of the difficulty in disassembling endoscopes in related technologies, in a first aspect, embodiments of this application provide an endoscope connection structure, see reference. Figures 1-7As shown, it includes a tip 1 and a curved portion 2; the tip and the curved portion are connected by at least one connecting portion; the connecting portion includes a first connecting portion 19; the outer circumferential side of one end of the tip and the outer circumferential side of one end of the curved portion are snapped together by the first connecting portion 19; the first connecting portion 19 includes a locking block 7 and a locking groove 3; the locking block 7 and the locking groove 3 are respectively located on the outer circumferential side of one end near the tip and the outer circumferential side of one end near the curved portion; when the tip rotates circumferentially relative to the curved portion, the locking block 3 engages with the locking groove 7.

[0040] See Figure 1 and Figure 2 As shown, the endoscope includes a tip 1 and a curved portion 2; a locking block 7 is provided on the circumferential outer side near the right end of the tip 1, and a locking groove 3 is provided on the circumferential outer side near the left end of the curved portion 2. The tip 1 and the curved portion are connected by the locking block 7 and the locking groove 3; optionally, after the right end of the tip 1 extends into the left end of the curved portion in the X direction, it is rotated into place in the Y direction, and the locking block 7 is engaged in the locking groove 3 to complete the installation; during disassembly, after rotating it into place in the opposite direction in the Y direction, the right end of the tip 1 is pulled out from the left end of the curved portion 2 to disassemble the tip 1 and the curved portion 2.

[0041] Therefore, in this embodiment, the tip and the curved part are connected by a snap-fit ​​connection through the first connecting part. When the tip rotates circumferentially relative to the curved part, the snap-fit ​​block 7 snaps into the snap-fit ​​groove 3 to achieve the connection between the tip and the curved part. The tip can be disassembled by performing the opposite operation on the tip and the curved part. Compared with the screw connection method of related technologies, it can achieve more convenient disassembly and installation, thereby reducing the difficulty of disassembling the endoscope.

[0042] Furthermore, the connecting part also includes a second connecting part; one end of the tip part and one end of the bent part are detachably connected through the second connecting part; the second connecting part includes a screw, a threaded groove 16 and a hole 9; the threaded groove 16 and the hole 9 are respectively provided at one end of the tip part and one end of the bent part; when the locking block 7 is engaged in the locking groove 3, the screw passes through the hole 9 and is threadedly connected to the threaded groove 16.

[0043] See Figures 5-7 As shown, the tip and the bent portion are also connected by a second connecting portion. The second connecting portion includes a screw (not shown in the figure), a threaded groove 16, and a hole 9; the threaded groove 16 is located at the right end of the tip 1, and the opening of the threaded groove 16 is located on the side wall of the tip, and the hole 9 is located on the side wall near the right end of the bent portion; after the locking block 7 is engaged with the locking groove 3, the threaded groove 16 and the hole 9 are threaded together by the screw. This enhances the stability of the connection between the tip 1 and the bent portion 2.

[0044] The above technical solution adds a second connecting part to the first connecting part, so that the tip and the bent part can be connected by a locking block and a locking slot on the one hand, and by a screw, a threaded groove and a threaded hole on the other hand. This enhances the stability of the connection between the tip and the bent part, and ensures the economy (low cost) of maintenance and disassembly.

[0045] The embodiments of this application employ a connecting part including a locking block, a locking slot, a screw, a threaded groove, and a hole. When the tip rotates circumferentially relative to the curved part, the locking block engages with the locking slot, and the screw, threaded groove, and hole are threadedly connected, thereby achieving the connection between the tip and the curved part. When it is necessary to disassemble the tip and the curved part, the opposite operation is performed to disassemble the tip and the curved part. Thus, the embodiments of this application enhance the stability of the connection between the tip and the curved part while reducing the difficulty of disassembling the endoscope.

[0046] Optionally, see Figures 3-7 As shown, the locking block 7 is located on the outer circumferential side of the right end near the tip end; the locking groove 3 is located on the outer circumferential side of the left end near the bend 2; the threaded groove 16 is located on the left end of the tip end 1; the opening of the threaded groove 16 is located on the outer side near the left end of the tip end 1; and the hole 9 is located on the outer side near the left end of the bend.

[0047] See Figure 4 As shown, the tip section 1 is provided with an illumination unit channel 10, an instrument channel 11, an imaging unit channel 12, a secondary water supply channel 13, and a water vapor channel 14. (See reference...) Figure 6 As shown, the tip 1 is also provided with a threaded hole 15 for fixing the lighting unit. The threaded groove 16 does not conflict with the original threaded hole 15 and the various channels.

[0048] The above technical solution optimizes the positions of the locking blocks, locking slots, threaded grooves, and holes, ensuring that the locking blocks, locking slots, threaded grooves, and holes do not conflict with existing components on the tip and curved sections. It makes full use of the original space on the tip and curved sections for arrangement, thereby improving the space utilization efficiency of the tip and curved sections.

[0049] See Figures 1-2 As shown, the slot 3 includes a first slot 17 and a second slot 18; one end of the first slot 17 and one end of the second slot 18 are connected at an angle; when the right end of the tip 1 extends into the left end of the bent portion 2 in the X direction at the first position 6, the locking block 7 is locked at the right end of the first slot; when the tip 1 is rotated in the Y direction relative to the bent portion in the circumferential direction to the second position 8, the locking block 7 is screwed into the second slot at the first position 6, and the screw passes through the hole 9 and is threadedly connected to the threaded groove 16.

[0050] The above technical solution employs a non-linear slot, enabling a two-section connection. Specifically, when one end of the tip extends into the first position 6 of the bent portion, the locking block 7 slides into and engages with the first slot 17. After the tip reaches the first position 6 within the first slot, the tip rotates circumferentially relative to the bent portion to a second position 8, thus engaging the locking block 7 with the slot 3. This method of engagement allows the slot 3 to better secure the locking block 7 and restricts its circumferential rotation. When the tip rotates circumferentially relative to the bent portion to the second position, the screw, threaded groove 16, and hole 9 form a threaded connection, resulting in a stronger axial force between the tip and the bent portion, further enhancing the stability of the connection between the tip and the bent portion.

[0051] Furthermore, the outer diameter of the right end of the tip is smaller than the inner diameter of the left end of the bend; the difference between the inner diameter of the left end of the bend and the outer diameter of the right end of the tip is 0.01-0.1 mm. For example, this difference can be 0.01 mm, 0.03 mm, 0.05 mm, 0.07 mm, 0.09 mm, or 0.1 mm. No limitation is made here.

[0052] The above technical solution, by constraining the difference between the inner diameter of one end of the curved part and the outer diameter of one end of the tip, allows the tip to have a stronger bonding force after it extends into the curved part during assembly, which facilitates the quick and smooth assembly of the tip and the curved part.

[0053] See Figure 2 As shown, the difference between the width a of the first groove 17 and the outer diameter of the locking block 7 is 0.01-0.1 mm; the difference between the width b of the second groove 18 and the outer diameter of the locking block 7 is 0.01-0.1 mm. For example, the difference between the width a of the first groove 17 and the outer diameter of the locking block 7 is 0.01 mm, 0.02 mm, 0.04 mm, 0.06 mm, 0.08 mm, or 0.1 mm; the difference between the width b of the second groove 18 and the outer diameter of the locking block 7 is 0.01 mm, 0.02 mm, 0.04 mm, 0.06 mm, 0.08 mm, or 0.1 mm. No limitation is made here.

[0054] The above technical solution, by constraining the difference between the width of the first groove and the outer diameter of the card block, and the difference between the width of the second groove and the outer diameter of the card block, allows the second block to have a stronger bonding force after entering the first and second grooves during assembly, which is conducive to the rapid and smooth assembly of the tip and the curved part.

[0055] Optionally, the rotation angle of the tip portion to the second position along the Y direction is 3-30°, and the rotation angle can be 3°, 6°, 9°, 12°, 15°, 22°, 24°, 26° or 30°. There is no limitation here.

[0056] The above technical solution, by constraining the circumferential rotation angle of the tip, can avoid insufficient force of the second groove on the locking block due to an excessively small rotation angle, and avoid reducing the rigidity of the second groove due to an excessively large rotation angle.

[0057] Furthermore, the length of the second groove 18 in the circumferential direction of the curved portion 2 is equal to or greater than the arc length rotated by the tip portion 1 in the Y direction corresponding to the rotation angle.

[0058] The above technical solution allows the arc length change generated after the tip 1 is rotated circumferentially by a certain angle to match the length of the second groove in the circumferential direction of the curved part, thereby making it easier to disassemble and install the tip 1 and the curved part 2.

[0059] Furthermore, a boss 4 is provided on the outer circumferential side of one end near the tip; when the locking block is screwed into the second groove, the boss contacts the edge 5 of one end of the curved portion.

[0060] The above technical solution allows the boss 4 to contact the bent portion after the tip and the bent portion are connected, preventing the tip 1 and the bent portion 2 from moving in the axial direction, thereby enhancing the stability of the connection between the tip and the bent portion.

[0061] Furthermore, the boss 4 is a ring structure; the boss 4 is connected to the circumferential outer side near the right end of the tip 1.

[0062] The above technical solution can make the contact area between the boss and the curved part larger, thereby making the force on the boss 4 at the tip more uniform, and thus making the force on each position at the connection between the tip 1 and the curved part 2 more uniform.

[0063] Secondly, embodiments of this application provide an endoscope, including a connection structure.

[0064] The functions and effects of the technical features in this technical solution that are similar to or related to the aforementioned technical solution are similar to those in the aforementioned technical solution, and the inventive concept and beneficial effects of this technical solution are similar to those in the aforementioned technical solution, so they will not be repeated here.

[0065] The above are merely preferred embodiments of this application and are 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. A connection structure of an endoscope, characterized by comprising: It includes a tip and a curved portion; the tip and the curved portion are connected by at least one connecting portion; the connecting portion includes a first connecting portion; The outer circumferential side of one end of the tip portion and the outer circumferential side of one end of the curved portion are connected by a first connecting portion; the first connecting portion includes a locking block and a locking groove; the locking block and the locking groove are respectively located on the outer circumferential side of one end near the tip portion and on the outer circumferential side of one end near the curved portion. When the tip rotates circumferentially relative to the curved portion, the locking block engages with the locking groove.

2. The connection structure of an endoscope according to claim 1, characterized by The connecting part further includes a second connecting part; one end of the tip part and one end of the bent part are detachably connected through the second connecting part; the second connecting part includes a screw, a threaded groove and a hole; the threaded groove and the hole are respectively provided at one end of the tip part and one end of the bent part; when the locking block is engaged in the locking groove, the screw passes through the hole and is threadedly connected to the threaded groove.

3. The connection structure of an endoscope according to claim 2, wherein The locking block is located on the circumferential outer side of one end near the tip end; the locking groove is located on the circumferential outer side of one end near the bend end; the threaded groove is located at one end of the tip end; the opening of the threaded groove is located on the outer side of one end near the tip end; and the hole is located on the outer side of one end near the bend end.

4. The connection structure of an endoscope according to claim 3, wherein The slot includes a first slot and a second slot; one end of the first slot and one end of the second slot are connected at an included angle; when one end of the tip extends into one end of the curved portion at a first position, the locking block is locked at one end of the first slot; when the tip rotates circumferentially relative to the curved portion to a second position, the locking block is screwed into the second slot at the first position, and the screw passes through the hole and is threadedly connected to the threaded groove.

5. The connection structure of an endoscope according to Claim 4, wherein The outer diameter of one end of the tip is smaller than the inner diameter of one end of the bend; the difference between the inner diameter of one end of the bend and the outer diameter of one end of the tip is 0.01-0.1 mm.

6. The connection structure of an endoscope according to claim 4, wherein The difference between the width of the first groove and the outer diameter of the card block is 0.01-0.1 mm; the difference between the width of the second groove and the outer diameter of the card block is 0.01-0.1 mm.

7. The connection structure of an endoscope according to Claim 4, wherein The rotation angle of the circumferential rotation of the tip to the second position is 3-30°.

8. The connection structure of an endoscope according to claim 7, wherein The length of the second groove in the circumferential direction of the curved portion is equal to or greater than the arc length of the tip corresponding to the rotation angle.

9. The connection structure of an endoscope according to Claim 4, wherein A boss is provided on the outer circumferential side of one end near the tip; when the locking block is screwed into the second groove, the boss contacts one end of the curved portion.

10. An endoscope characterized by comprising: Includes the connection structure described in any one of claims 1-9.

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