An optical-electric composite cable outlet connector and endoscope

Abstract

The application provides an outlet connector for an optical-electric composite cable and an endoscope. The outlet connector for the optical-electric composite cable comprises an outlet connector main body, the outlet connector main body is provided with a wire passing channel for the composite cable to pass through, the outlet connector main body comprises a sleeve and a bushing inserted into the sleeve, the sleeve and the bushing are electrically connected, the inside of the sleeve and the bushing forms the wire passing channel, a anti-disengagement structure is arranged between the sleeve and the bushing to prevent the bushing from disengaging from the sleeve, and a riveting structure is arranged on the side of the bushing facing the wire inlet end of the wire passing channel to be riveted and connected with the composite cable. The outlet connector for the optical-electric composite cable can effectively solve the technical problems of low assembly efficiency and poor heat dissipation performance when the outlet connector is connected and fixed with the composite cable in the prior art.

Description

Technical Field

[0001] This invention relates to an output connector for an optoelectronic composite cable and an endoscope, belonging to the field of endoscope technology. Background Technology

[0002] Medical endoscopes typically have two receiving ends located at the handheld end: a light receiver and an electrical receiver. During use, the light receiver connects to the light source end of the endoscope via an illumination fiber optic cable to receive the light source signal. The electrical receiver connects to the power signal receiver end of the endoscope via power and video signal cables to transmit video, power, and control signals. Currently, the light and electrical receivers on the handheld end of endoscopes are oriented differently. When connecting the handheld end to the endoscope via corresponding cables, the cables are prone to tangling or interference, making equipment placement difficult and severely impacting work efficiency. Furthermore, cleaning and disinfecting the equipment requires separate cleaning and disinfection of both cable bundles, increasing the workload and difficulty of cleaning.

[0003] To address the aforementioned issues, Chinese invention patent application CN115153389A, published on October 11, 2022, discloses a composite wire harness and an endoscope. The endoscope includes a wire outlet connector, which comprises a wire outlet head body with a wire passage channel. Corresponding wires connected to the device are arranged in a composite tube to form a composite cable. The composite cable enters through the wire passage's inlet end and exits through the wire passage's outlet end. To ensure a stable connection between the composite cable and the wire outlet connector, a retaining ring is provided within the wire passage channel. After passing through the retaining ring, the composite cable is fixed by applying adhesive. Furthermore, to prevent the composite cable from detaching from the wire passage's inlet end during pulling, a blocking structure is provided on the wall of the wire passage. The blocking structure and the retaining ring form a blocking engagement in the extension direction of the wire passage channel.

[0004] While the aforementioned endoscope can solve the problems of difficult cable placement and high disinfection workload, other issues still exist during its use: Specifically: 1. When fixing composite cables, the retaining ring needs to be installed in the cable passage first, then the composite cable is passed through the retaining ring, and finally, glue is applied for fixation. Before glue application, the retaining ring is movably installed in the cable passage, which can easily cause the position of the retaining ring to change during cable insertion. Since the retaining ring is located in the cable passage, it is inconvenient to adjust, resulting in low assembly efficiency. 2. Glue application affects the heat dissipation of the composite cable, leading to a decrease in the heat dissipation performance of the cable outlet connector. Summary of the Invention

[0005] The purpose of this invention is to provide a lead-out connector for optoelectronic composite cables, thereby solving the technical problems of low assembly efficiency and poor heat dissipation performance when connecting and fixing lead-out connectors to composite cables in the prior art. Simultaneously, this invention also provides an endoscope to address the aforementioned problems.

[0006] The outgoing connector for the optoelectronic composite cable in this invention adopts the following technical solution:

[0007] The output connector for the optoelectronic composite cable includes an output connector body with a cable passage for the composite cable to pass through. The output connector body includes a sleeve and a bushing inserted in the sleeve. The sleeve and bushing are electrically connected. The cable passage is formed inside the sleeve and bushing. An anti-detachment structure is provided between the sleeve and the bushing to prevent the bushing from coming out of the sleeve. When in use, the bushing has a riveting structure on the side facing the cable inlet end of the cable passage for riveting connection with the composite cable.

[0008] Beneficial Effects: This invention provides an improved output connector for optoelectronic composite cables. When connecting and fixing the composite cable, the composite cable is first passed through the bushing and fixed by a riveting structure. Then, the riveted bushing and composite cable are passed through a sleeve, with the sleeve and bushing forming an anti-detachment fit through an anti-detachment structure. The connection between the output connector and the composite cable is then complete. Compared to existing output connectors, the output connector provided by this invention uses a riveting structure on the bushing to connect with the composite cable. Simultaneously, the connected bushing is inserted into the sleeve, and the anti-detachment structure prevents the bushing from detaching from the sleeve towards the cable inlet end of the cable passage, ensuring a reliable shielded connection between the output connector and the composite cable. The connection process is very convenient, improving the connection efficiency between the output connector and the composite cable. Furthermore, the riveting connection between the composite cable and the bushing also improves the heat dissipation performance of the output connector.

[0009] Furthermore, the anti-detachment structure is a blocking structure, which forms a blocking fit in the extension direction of the wire passage.

[0010] Beneficial effects: The anti-detachment structure adopts a blocking structure, which facilitates the assembly of the bushing and the sleeve.

[0011] Furthermore, the stop structure includes annular steps respectively provided on the bushing and the sleeve.

[0012] Beneficial effects: The annular step provides good stopping power and is easy to process.

[0013] Furthermore, an annular groove is provided on the outer circumferential surface of the bushing, and a grounding spring is installed in the annular groove. The sleeve is electrically connected to the bushing through the grounding spring.

[0014] Beneficial effects: The sleeve is electrically connected to the bushing through the grounding spring, so that the outgoing connector can still provide reliable shielding for the composite cable when the sleeve and bushing have poor contact, thereby improving the stability of the outgoing connector during use.

[0015] Furthermore, an anti-rotation structure is provided between the sleeve and the bushing to prevent relative rotation between the sleeve and the bushing.

[0016] Beneficial effects: The anti-rotation structure between the sleeve and the bushing can prevent relative rotation between the sleeve and the bushing during use, thereby affecting the stability of the optoelectronic composite cable.

[0017] Furthermore, the anti-rotation structure includes an anti-rotation groove and an anti-rotation block, one of which is located on the bushing and the other on the sleeve.

[0018] Beneficial effects: The anti-rotation block and the anti-rotation groove form an anti-rotation fit and also guide the bushing, making it easier to install the bushing in the sleeve, thereby improving the assembly efficiency of the cable outlet connector.

[0019] Furthermore, the end face of the sleeve near the wire exit end of the wire passage is provided with a connection structure for connecting to the endoscope handpiece.

[0020] Beneficial effect: The sleeve connects to the end of the endoscope via the end face near the cable exit end of the cable passage, making the connection more convenient.

[0021] Furthermore, the end face of the sleeve near the cable exit end of the cable passage is also provided with an anti-rotation component for engaging with the endoscope handpiece.

[0022] Beneficial effect: The anti-rotation component can prevent relative rotation between the sleeve and the endoscope handpiece when they are connected, thereby improving the stability of the endoscope during use.

[0023] Furthermore, a sealing structure is provided between the sleeve and the bushing.

[0024] Beneficial effect: Setting a sealing structure between the sleeve and the bushing can improve the protection performance of the cable outlet joint.

[0025] The endoscope in this invention adopts the following technical solution:

[0026] The endoscope includes a connector for a photoelectric composite cable. The connector includes a connector body with a cable passage for the composite cable to pass through. The connector body includes a sleeve and a bushing inserted in the sleeve. The sleeve and bushing are electrically connected. The cable passage is formed inside the sleeve and bushing. An anti-detachment structure is provided between the sleeve and the bushing to prevent the bushing from coming out of the sleeve. When in use, the bushing has a riveting structure on the side facing the cable inlet end of the cable passage for riveting connection with the composite cable.

[0027] Beneficial Effects: This invention provides an improved endoscope. When the endoscope's photoelectric composite cable outlet connector is connected and fixed to the composite cable, the composite cable is first passed through the bushing and fixed by a riveting structure. Then, the riveted bushing and composite cable are passed through a sleeve, so that the sleeve and bushing form an anti-detachment fit through an anti-detachment structure, completing the connection between the outlet connector and the composite cable. Compared to the outlet connectors in the prior art, the outlet connector provided by this invention uses a riveting structure on the bushing to connect to the composite cable. Simultaneously, the connected bushing is inserted into the sleeve, and the anti-detachment structure prevents the bushing from detaching from the sleeve towards the cable inlet end of the cable passage, ensuring a reliable shielded connection between the outlet connector and the composite cable. The connection process is very convenient, improving the connection efficiency between the outlet connector and the composite cable. Furthermore, the riveting connection between the composite cable and the bushing also improves the heat dissipation performance of the outlet connector.

[0028] Furthermore, the anti-detachment structure is a blocking structure, which forms a blocking fit in the extension direction of the wire passage.

[0029] Beneficial effects: The anti-detachment structure adopts a blocking structure, which facilitates the assembly of the bushing and the sleeve.

[0030] Furthermore, the stop structure includes annular steps respectively provided on the bushing and the sleeve.

[0031] Beneficial effects: The annular step provides good stopping power and is easy to process.

[0032] Furthermore, an annular groove is provided on the outer circumferential surface of the bushing, and a grounding spring is installed in the annular groove. The sleeve is electrically connected to the bushing through the grounding spring.

[0033] Beneficial effects: The sleeve is electrically connected to the bushing through the grounding spring, so that the outgoing connector can still provide reliable shielding for the composite cable when the sleeve and bushing have poor contact, thereby improving the stability of the outgoing connector during use.

[0034] Furthermore, an anti-rotation structure is provided between the sleeve and the bushing to prevent relative rotation between the sleeve and the bushing.

[0035] Beneficial effects: The anti-rotation structure between the sleeve and the bushing can prevent relative rotation between the sleeve and the bushing during use, thereby affecting the stability of the optoelectronic composite cable.

[0036] Furthermore, the anti-rotation structure includes an anti-rotation groove and an anti-rotation block, one of which is located on the bushing and the other on the sleeve.

[0037] Beneficial effects: The anti-rotation block and the anti-rotation groove form an anti-rotation fit and also guide the bushing, making it easier to install the bushing in the sleeve, thereby improving the assembly efficiency of the cable outlet connector.

[0038] Furthermore, the end face of the sleeve near the wire exit end of the wire passage is provided with a connection structure for connecting to the endoscope handpiece.

[0039] Beneficial effect: The sleeve connects to the end of the endoscope via the end face near the cable exit end of the cable passage, making the connection more convenient.

[0040] Furthermore, the end face of the sleeve near the cable exit end of the cable passage is also provided with an anti-rotation component for engaging with the endoscope handpiece.

[0041] Beneficial effect: The anti-rotation component can prevent relative rotation between the sleeve and the endoscope handpiece when they are connected, thereby improving the stability of the endoscope during use.

[0042] Furthermore, a sealing structure is provided between the sleeve and the bushing.

[0043] Beneficial effect: Setting a sealing structure between the sleeve and the bushing can improve the protection performance of the cable outlet joint. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the optoelectronic composite cable connector of the present invention;

[0045] Figure 2 yes Figure 1 A schematic diagram showing the connection status between the middle bushing and the optoelectronic composite cable;

[0046] Figure 3 This is a schematic diagram of the anti-rotation fit between the sleeve and bushing of the present invention.

[0047] The names of the components corresponding to the corresponding reference numerals in the figure are:

[0048] 100. Sleeve; 101. Bushing; 102. Riveting structure; 103. Annular step; 104. Annular groove; 105. Grounding spring; 106. Anti-rotation groove; 107. Anti-rotation block; 108. Threaded hole; 109. Anti-rotation key; 110. Protective shell; 111. Sealing ring; 112. Optoelectronic composite cable. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0050] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0051] It should be noted that, in specific embodiments of the present invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. Furthermore, terms such as "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. Without further limitations, the use of phrases such as "comprising a…" to define an element does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0052] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0053] In the description of this invention, unless otherwise explicitly specified and limited, the term "provided with" should be interpreted broadly. For example, the object "provided with" can be a part of the body, or it can be separately arranged from the body and connected to the body. This connection can be a detachable connection or a non-detachable connection. Those skilled in the art can understand the specific meaning of the above terms in this invention through specific circumstances.

[0054] The present invention will be further described in detail below with reference to embodiments.

[0055] Example 1 of the endoscope in this invention:

[0056] The endoscope provided in this embodiment includes a photoelectric composite cable 112 outlet connector (hereinafter referred to as outlet connector). The outlet connector includes an outlet connector body, which includes a sleeve 100 and a bushing 101 fitted in the sleeve 100. The sleeve 100 forms a cable passage inside for the photoelectric composite cable 112 to pass through.

[0057] In this embodiment, as Figure 1 As shown, an anti-detachment structure is provided between the sleeve 100 and the bushing 101. The anti-detachment structure is specifically a blocking structure, which includes annular steps 103 respectively provided on the outer peripheral surfaces of the bushing 101 and the sleeve 100. The two annular steps 103 form a blocking fit in the extension direction of the cable passage during use. In addition, a riveting structure 102 for riveting connection with the optoelectronic composite cable 112 is provided on the side of the bushing 101 facing the cable inlet end of the cable passage.

[0058] In this embodiment, as Figure 1 and Figure 2 As shown, to ensure a reliable electrical connection between the bushing 101 and the sleeve 100, an annular groove 104 is provided on the outer circumferential surface of the bushing 101. A grounding spring 105 is installed in the annular groove 104, and the sleeve 100 is grounded to the bushing 101 through the grounding spring 105.

[0059] In this embodiment, to ensure the stability of the lighting fiber and circuit board during use, such as Figure 1 As shown, an anti-rotation structure is provided between the sleeve 100 and the bushing 101. The anti-rotation structure includes an anti-rotation block 107 and an anti-rotation groove 106. The anti-rotation groove 106 is provided on the sleeve 100, and the anti-rotation block 107 is provided on the bushing 101. In use, the anti-rotation block 107 is located in the anti-rotation groove 106, and the two form an anti-rotation fit.

[0060] In this embodiment, as Figure 3 As shown, the sleeve 100 has a connection structure on its end face near the cable outlet of the cable passage for connecting with the endoscope handpiece. The connection structure is specifically a threaded hole 108. In addition, the sleeve 100 also has an anti-rotation component on its end face near the cable outlet of the cable passage for cooperating with the endoscope handpiece. The anti-rotation component is specifically an anti-rotation key 109.

[0061] In this embodiment, to improve the protection performance of the outgoing connector, such as... Figure 1 As shown, the main body of the outgoing connector also includes a protective shell 110, and the sleeve 100 is fitted and fixed in the protective shell 110.

[0062] In this embodiment, to improve the waterproof performance of the outgoing connector, such as... Figure 1 As shown, a sealing structure is provided between the sleeve 100 and the bushing 101, and between the sleeve 100 and the protective shell 110. The sealing structure is specifically a sealing ring 111.

[0063] When the endoscope provided in this embodiment is connected and fixed with the photoelectric composite cable 112, the photoelectric composite cable 112 is first passed through the bushing 101 and connected and fixed by the riveting structure 102. Then, the riveted bushing 101 and the photoelectric composite cable 112 are passed through the sleeve 100, so that the sleeve 100 and the bushing 101 form an anti-detachment fit through the anti-detachment structure. The cable outlet connector is then connected to the photoelectric composite cable 112. Compared to the existing cable connectors, the cable connector provided in this embodiment uses a riveting structure 102 on the bushing 101 to connect with the optoelectronic composite cable 112. At the same time, the connected bushing 101 is fitted into the sleeve 100, and an anti-detachment structure is used to prevent the bushing 101 from coming off the sleeve 100 towards the cable inlet end of the cable passage. This ensures a reliable shielded connection between the cable connector and the optoelectronic composite cable 112. The connection process is very convenient and improves the connection efficiency between the cable connector and the optoelectronic composite cable 112. In addition, the riveting connection between the optoelectronic composite cable 112 and the bushing 101 can also improve the heat dissipation performance of the cable connector.

[0064] Example 2 of the endoscope in this invention:

[0065] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, a sealing structure is provided between the sleeve and the bushing. In this embodiment, however, no sealing structure is provided between the sleeve and the bushing.

[0066] Example 3 of the endoscope in this invention:

[0067] The difference between this embodiment and Embodiment 1 is that, in Embodiment 1, an anti-rotation key is provided on the end face of the sleeve near the cable exit end of the cable passage. In this embodiment, however, the sleeve does not have an anti-rotation key, and the sleeve and the endoscope handpiece are connected only by screws.

[0068] Example 4 of the endoscope in this invention:

[0069] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the connecting structure is located on the end face of the sleeve near the outlet end of the wire passage. In this embodiment, the connecting structure is located on the outer circumferential surface of the sleeve near the outlet end of the wire passage.

[0070] Example 5 of the endoscope in this invention:

[0071] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, an annular groove is provided on the outer circumferential surface of the bushing, and a grounding spring is installed in the annular groove, through which the sleeve is electrically connected to the bushing. In this embodiment, however, an annular groove is not provided on the outer circumferential surface of the bushing, and the sleeve and bushing are electrically connected through direct contact.

[0072] Example 6 of the endoscope in this invention:

[0073] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the stopping structure includes two annular steps. In this embodiment, the stopping structure includes two stopping blocks, one of which is disposed on the bushing and the other on the sleeve.

[0074] Example 7 of the endoscope in this invention:

[0075] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the anti-detachment structure is a blocking structure. In this embodiment, however, the anti-detachment structure is a threaded connection structure, with the bushing screwed into the sleeve via threads.

[0076] An embodiment of the output connector for optoelectronic composite cables in this invention:

[0077] The output connector for the optoelectronic composite cable provided in this embodiment has the same structure as the output connector for the optoelectronic composite cable in any of the above-described endoscope embodiments, and will not be described again here.

[0078] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present invention shall also be included within the scope of protection of the present invention.

Claims

1. An outlet connector for an optical-electrical composite cable, comprising an outlet connector main body, the outlet connector main body being provided with a wire passage for the composite cable to pass through, characterized in that, The outlet joint body comprises a sleeve (100) and a bushing (101) inserted into the sleeve (100), the sleeve (100) and the bushing (101) are electrically connected, the inside of the sleeve (100) and the bushing (101) forms the wire passing channel, a anti-extraction structure is arranged between the sleeve (100) and the bushing (101) to prevent the bushing (101) from being extracted from the sleeve (100), a riveting structure (102) is arranged on the side of the bushing (101) facing the wire inlet end of the wire passing channel to be riveted and connected with the composite cable; a sealing structure is arranged between the sleeve and the bushing inside the riveting structure; the side of the sleeve facing the wire inlet end of the wire passing channel is a cantilevered part, a gap is formed between the inside of the cantilevered part and the riveting structure, and a gap is formed between the outside of the cantilevered part and the protective shell in use.

2. The optical-electrical hybrid cable outlet connector according to claim 1, wherein The anti-extraction structure is a stop structure, and the stop structure forms a stop fit in the extension direction of the wire passing channel.

3. The optical-electrical hybrid cable outlet connector according to claim 2, wherein The stop structure comprises annular steps (103) arranged on the sleeve (100) and the bushing (101) respectively.

4. The optical-electrical hybrid cable outlet connector according to claim 1, wherein An annular groove (104) is arranged on the outer circumferential surface of the bushing (101), and a grounding spring (105) is arranged in the annular groove (104), and the sleeve (100) is electrically connected with the bushing (101) through the grounding spring (105).

5. The optical-electrical hybrid cable outlet connector according to any one of claims 1 to 4, characterized in that, A rotation stopping structure is arranged between the sleeve (100) and the bushing (101) to prevent relative rotation between the sleeve (100) and the bushing (101).

6. The optical-electrical hybrid cable outlet connector according to claim 5, wherein The rotation stopping structure comprises a rotation stopping groove (106) and a rotation stopping block (107), one of the rotation stopping groove (106) and the rotation stopping block (107) is arranged on the bushing (101), and the other is arranged on the sleeve (100).

7. The optical-electrical hybrid cable outlet connector according to any one of claims 1 to 4, wherein A connecting structure for connecting with the hand-held end of the endoscope is arranged on the end face of the sleeve (100) close to the wire outlet end of the wire passing channel.

8. The optical-electrical hybrid cable outlet connector according to claim 7, wherein A rotation stopping piece for cooperating with the hand-held end of the endoscope is further arranged on the end face of the sleeve (100) close to the wire outlet end of the wire passing channel.

9. The optical-electrical hybrid cable outlet connector according to claim 1, wherein The sealing structure is a sealing ring (111).

10. An endoscope comprising a light and electric composite cable outlet connector, characterized by The outlet joint for the photoelectric composite cable comprises an outlet joint body, and a wire passing channel is arranged on the outlet joint body for the composite cable to pass through, characterized in that the outlet joint body comprises a protective shell (110), a sleeve (100) fixed in the protective shell, and a bushing (101) inserted into the sleeve (100), the sleeve (100) and the bushing (101) are electrically connected, the inside of the sleeve (100) and the bushing (101) forms the wire passing channel, a anti-extraction structure is arranged between the sleeve (100) and the bushing (101) to prevent the bushing (101) from being extracted from the sleeve (100), a riveting structure (102) is arranged on the side of the bushing (101) facing the wire inlet end of the wire passing channel to be riveted and connected with the composite cable; a sealing structure is arranged between the sleeve and the bushing inside the riveting structure; the side of the sleeve facing the wire inlet end of the wire passing channel is a cantilevered part, a gap is formed between the inside of the cantilevered part and the riveting structure, and a gap is formed between the outside of the cantilevered part and the protective shell in use.

11. The endoscope of claim 10, wherein, The anti-disengagement structure is a stop structure, which forms a stop fit in the extension direction of the wire passing channel.

12. The endoscope of claim 11, wherein, The stop structure comprises annular steps (103) respectively arranged on the bushing (101) and the sleeve (100).

13. The endoscope of claim 10, wherein, An annular groove (104) is arranged on the outer circumferential surface of the bushing (101), and a grounding spring (105) is arranged in the annular groove (104), so that the sleeve (100) is electrically connected with the bushing (101) through the grounding spring (105).

14. The endoscope of any one of claims 10-13, wherein, A rotation stopping structure is arranged between the sleeve (100) and the bushing (101) to prevent relative rotation between the sleeve (100) and the bushing (101).

15. The endoscope of claim 14, wherein, The rotation stopping structure comprises a rotation stopping groove (106) and a rotation stopping block (107), one of which is arranged on the bushing (101) and the other of which is arranged on the sleeve (100).

16. The endoscope of any one of claims 10-13, wherein, An end surface of the sleeve (100) near the wire outlet end of the wire passing channel is provided with a connecting structure for connecting with the hand-held end of the endoscope.

17. The endoscope of claim 10, wherein, The sealing structure is a sealing ring (111).

18. The endoscope of claim 16, wherein, The end surface of the sleeve (100) near the wire outlet end of the wire passing channel is further provided with a rotation stopping member for cooperating with the hand-held end of the endoscope.

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