Endoscope transparent cap with auxiliary structure and endoscope having the same

Abstract

The application discloses an endoscope transparent cap with an auxiliary structure and an endoscope with the transparent cap. The transparent cap comprises a cap body, a proximal end of the cap body is used for sleeving on the endoscope, and a distal end of the cap body is used for abutting against tissue to form a fulcrum. A main working channel is arranged through the cap body along an axial direction of the cap body and is used for passing through a surgical instrument. An auxiliary structure body is arranged on an outer surface of a side wall of the cap body. An electrode needle auxiliary channel is formed in the auxiliary structure body and is independent of the main working channel and extends along the axial direction of the cap body. The electrode needle auxiliary channel is used for guiding an electrode needle to pass through. In the above manner, the electrode needle auxiliary channel which is physically separated from the main working channel can realize synchronous visual operation of double instruments, can stabilize the fulcrum and actively separate tissue, effectively expands a visual field and an operation space, is perfectly compatible with the existing endoscope, and significantly improves surgical accuracy and safety.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an endoscope with an auxiliary structure and an endoscope having the transparent cap. Background Technology

[0002] In endoscopic procedures (such as gastroscopy, colonoscopy, and bronchoscopy), the transparent cap attached to the tip of the endoscope is an important auxiliary tool. Its main function is to open the lumen and maintain a stable distance between the endoscope lens and the target tissue, thereby obtaining a clear surgical field. In addition, the transparent cap is also used to fix the target tissue and assist in procedures such as submucosal dissection (ESD) and polyp removal.

[0003] Currently, most transparent caps used in clinical practice have a flat or dome-shaped closed design at the front end, primarily serving to open cavities, protect the lens, and provide support for the snare. However, existing transparent caps have limitations when dealing with complex lesions.

[0004] When lesions are located in complex areas such as deep mucosal folds or when an initial dissection entry point needs to be established, surgeons lack an effective, specialized tool for precise and controllable blunt dissection. Currently, it is often necessary to rely on other instruments to repeatedly suction and push tissue, which is inefficient, inaccurate, and increases the risk of intraoperative bleeding and perforation.

[0005] Furthermore, current surgical procedures heavily rely on a single working channel of the endoscope. During the procedure, surgeons must repeatedly perform cyclical operations of inserting and withdrawing various surgical instruments, resulting in a cumbersome process and a risk of cross-contamination.

[0006] Currently, although there are technical solutions that add instrument channels to the transparent cap or improve the shape of the front end of the transparent cap, they all have certain limitations: Transparent cap with added instrument channel: This type of structure has an instrument channel opened on the side wall or top of the transparent cap, which allows the instrument to extend without occupying the main working forceps channel. However, its function is mostly limited to the extension and retraction of the instrument. The transparent cap itself is still a passive structure and is not given an active anatomical separation function. Transparent caps with improved front-end shape: This type of structure has bevels, grooves, etc. at the front end of the transparent cap, which improves the effect of tissue pushing or instrument guidance to a certain extent. However, it is still a passive optimization in essence and cannot achieve dynamic separation operation that is actively controlled by doctors.

[0007] In summary, existing solutions fail to integrate the two major functions of "active anatomical dissection and spatial creation" with "passive, immediate access to specialized instruments." Therefore, there is an urgent need for a highly integrated endoscopic cap that can proactively improve intraoperative anatomical visibility, optimize surgical procedures, and is more compatible with existing endoscopic systems. Summary of the Invention

[0008] The main technical problem solved by this invention is to provide an endoscope with an auxiliary structure and an endoscope having the transparent cap. By setting a rigid electrode needle auxiliary channel that is physically separated from the main working channel, the invention enables simultaneous visual operation of two instruments. The pointed isolation cover provides a stable fulcrum and actively separates tissues, effectively expanding the field of view and operating space. It is perfectly compatible with existing endoscopes and significantly improves surgical accuracy and safety.

[0009] To solve the above-mentioned technical problems, one technical solution adopted by the present invention is: to provide an endoscope transparent cap with an auxiliary structure, comprising: a cap body, the cap body having a proximal end and a distal end, the proximal end of the cap body being used to fit onto an endoscope, and the distal end of the cap body being used to abut against tissue to form a fulcrum; The cap body has a through main working channel along its axial direction, which is used for passing surgical instruments; an auxiliary structure is protruding from the outer surface of the side wall of the cap body, and an electrode needle auxiliary channel is formed inside the auxiliary structure, which is independent of the main working channel and extends along the axial direction of the cap body, and the electrode needle auxiliary channel is used to guide the electrode needle through.

[0010] In a preferred embodiment of the present invention, the central axis of the main working channel is parallel to the central axis of the electrode needle auxiliary channel and has a preset distance in the radial direction.

[0011] In a preferred embodiment of the present invention, the radial distance between the central axis of the main working clamp channel and the central axis of the electrode needle auxiliary channel is 2-8 mm.

[0012] In a preferred embodiment of the present invention, the inner diameter of the electrode needle auxiliary channel is 0.5-2.5 mm.

[0013] In a preferred embodiment of the present invention, both the cap body and the auxiliary structure are made of electrically insulating material.

[0014] In a preferred embodiment of the present invention, the distal end face of the auxiliary structure does not extend beyond the distal end face of the cap.

[0015] In a preferred embodiment of the present invention, at least a portion of the distal end face of the auxiliary structure is provided with an isolation cover extending distally.

[0016] In a preferred embodiment of the present invention, the isolation cover is a pointed structure with a blunt safety arc end at its top.

[0017] In a preferred embodiment of the present invention, the electrode needle auxiliary channel extends through the auxiliary structure and the isolation cover, and the axial length of the electrode needle auxiliary channel is greater than the axial length of the main working channel.

[0018] One technical solution adopted by the present invention is to provide an endoscope, including the aforementioned transparent cap with auxiliary structure.

[0019] The beneficial effects of this invention are: By setting up a rigid electrode needle auxiliary channel that is physically separated from the main working forceps channel, the extension path, angle and depth of the electrode needle are highly predictable and repeatable, and the operation accuracy is far superior to the traditional method. The electrode needle does not occupy the main forceps channel, the endoscopic field of view is always clear, and the simultaneous visual operation of two instruments can be realized. The blunt safety arc end of the pointed isolation shield can actively separate tissue and create a stable operating space. At the same time, it serves as an auxiliary fulcrum to enhance stability. The isolation shield works in conjunction with the rigid channel to significantly improve the precision, smoothness and safety of complex endoscopic dissection and resection procedures. Made of insulating and transparent material, it prevents unexpected current conduction, protects normal tissue, and ensures unobstructed vision. By integrating complex functional requirements into a simple, integrated structure, it is easy to manufacture, cost-effective, and perfectly compatible with existing endoscopic equipment. It requires no modification to the main unit or endoscope and has good clinical application value. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a three-dimensional structural diagram of the transparent endoscope cap with auxiliary structure in Embodiment 1 of the present invention; Figure 2 This is a three-dimensional structural diagram of the endoscope transparent cap with auxiliary structure in Embodiment 1 of the present invention from another perspective; Figure 3 This is a front view of a preferred embodiment of Example 1; Figure 4 This is a cross-sectional view of Example 1, a preferred embodiment; Figure 5 This is a three-dimensional structural schematic diagram of Example 2, a preferred embodiment; The components in the attached diagram are labeled as follows: 100. Cap body; 110. Proximal end; 120. Distal end; 130. Main working channel; 200. Auxiliary structure; 210. Electrode needle auxiliary channel; 220. Isolation shield; 221. Blunt tip. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] 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.

[0023] The embodiments of the present invention include: Example 1:

[0024] An endoscope cap with auxiliary structures, such as Figure 1-4 As shown, it includes a generally cylindrical cap body 100 having opposing proximal ends 110 and distal ends 120.

[0025] The proximal end 110 of the cap 100 is provided with a fitting structure that matches the endoscope, so that the entire transparent cap can be detachably fitted onto the endoscope. The distal end 120 of the cap 100 is used to abut against the tissue surface during surgery to form a stable fulcrum for easy operation.

[0026] The cap body 100 is provided with a through main working channel 130 along its axial direction. The main working channel 130 is located at the central channel position of the cap body 100, allowing surgical instruments to pass freely.

[0027] Based on the above structure, the cap body 100 of the present invention has an auxiliary structure 200 protruding on the outer surface of the side wall. An electrode needle auxiliary channel 210 independent of the main working channel 130 is formed inside the auxiliary structure 200 along the axial direction of the cap body 100.

[0028] That is, the electrode needle auxiliary channel 210 is physically separated from the main working channel 130 of the endoscope, allowing the electrode needle to move independently without affecting the operation of the main channel instruments.

[0029] The electrode needle auxiliary channel 210 provides a rigid, fixed-angle exit path for the electrode needle, ensuring that the needle tip reaches the predetermined position accurately and stably each time. Since the electrode needle does not occupy the main forceps channel, the endoscope's field of vision can always remain optimal. The surgeon can simultaneously observe the target tissue and the position of the electrode needle in a clear, unobstructed view, enabling more coordinated and precise operations and improving the accuracy, smoothness, and safety of complex endoscopic procedures such as dissection and resection.

[0030] Both the cap 100 and the auxiliary structure 200 are made of electrically insulating materials. More preferably, they are made of highly transparent medical-grade electrically insulating polymer materials to ensure that the electrode needle does not conduct unexpected current with the transparent cap or other metal parts during operation, thus protecting normal tissue.

[0031] When the entire transparent cap is used with the electrode needle, the doctor only needs to control the movement of the endoscope and the electrode needle, eliminating the need for assistants to frequently pass and change instruments, thus simplifying the surgical procedure.

[0032] Furthermore, the central axis of the main working channel 130 is parallel to the central axis of the electrode needle auxiliary channel 210, and there is a preset distance in the radial direction, preferably 2-8mm, which can ensure that the electrode needle will not interfere with the normal operation of the main working channel 130 during puncture.

[0033] Furthermore, the inner diameter of the electrode needle auxiliary channel is 0.5-2.5mm, which can accommodate electrode needles of different specifications and facilitate the smooth passage of the electrode needle.

[0034] In this embodiment, at least a portion of the distal end face of the auxiliary structure 200 is provided with an isolation cover 220 extending distally. The isolation cover 220 is a pointed structure with a blunt safety arc end at its top.

[0035] Through a pointed extension structure, it can actively and accurately separate tissues and create a stable operating space. Its front end is a blunt safety arc end. This structure is designed to insert into the tissue gap, isolate the electrode needle from normal tissue contact, and at the same time, the structure itself can serve as an auxiliary fulcrum to enhance operational stability.

[0036] Based on the above structure, the electrode needle auxiliary channel 210 in this embodiment penetrates the auxiliary structure 200 and the isolation cover. Due to the extension of the isolation cover 220, the axial length of the electrode needle auxiliary channel 210 is greater than the axial length of the main working channel 130. This long channel provides a longer guide path for the electrode needle, ensuring the stability of the electrode needle during the extension process.

[0037] The working process of the endoscope transparent cap with auxiliary structure in this embodiment is as follows: During the surgery, the transparent cap is first installed at the tip of the endoscope. After entering the cavity, the blunt tip 221 of the isolation cover 220 is inserted and the tissue below the lesion is separated. Then, the high-frequency electrode needle is slowly inserted through the electrode needle auxiliary channel 210 on the auxiliary structure 200. Due to the rigid guidance of the channel, the electrode needle can be accurately and stably passed out from the top of the isolation cover 220 and directly act on the tissue gap that needs to be cut. Since the electrode needle auxiliary channel 210 does not occupy the main working channel 130, the main working channel 130 remains empty at this time, and the lens field of view can always be kept in the best state. Doctors can observe the target tissue and the position of the electrode needle simultaneously in a clear and unobstructed field of view, so as to achieve more coordinated and precise operation.

[0038] Throughout the entire process, the advance and retreat of the electrode needles and the operation of the endoscope do not interfere with each other, greatly improving the smoothness and safety of the surgery. Example 2:

[0039] This embodiment provides an endoscope transparent cap with an auxiliary structure. Its structure and working process are the same as in Embodiment 1, except that: no isolation cover extending to the distal end is provided.

[0040] Specifically, such as Figure 4 As shown, the distal end face of the auxiliary structure 200 is flush with the distal end face of the cap body 100, that is, the distal end face of the auxiliary structure 200 does not extend beyond the distal end face of the cap body.

[0041] This embodiment is applicable to routine endoscopic surgeries that do not require deep dissection into tissue spaces, such as endoscopic polypectomy, submucosal injection, and marker placement. During the procedure, the distal end of the cap acts as a fulcrum to stabilize and support the endoscope. Example 3:

[0042] This embodiment provides an endoscope, which includes the transparent cap with auxiliary structure described in Embodiment 1 or Embodiment 2.

[0043] The endoscope body has a flexible insertion tube, and the front end of the insertion tube is provided with an optical lens and an illumination window. The transparent cap is detachably fitted onto the outside of the front end of the insertion tube through a sleeve structure at its proximal end 110.

[0044] This embodiment integrates a transparent cap with an independent electrode needle auxiliary channel with the endoscope body to form an advanced endoscopic surgical system that enables parallel operation of two instruments, full visualization, and electrical safety isolation, significantly improving the accuracy, smoothness, and safety of endoscopic operations.

[0045] The beneficial effects of the endoscope transparent cap with auxiliary structure and the endoscope having the transparent cap of the present invention are: By setting up an auxiliary channel for the electrode needle that is physically separated from the main working channel, a rigid, fixed-angle guide path is provided for the electrode needle. Since the electrode needle does not occupy the main working channel, the endoscopic field of view remains clear at all times, and doctors can simultaneously observe the target tissue and the position of the electrode needle under direct vision, achieving more coordinated and precise operation; The pointed, extended isolation shield provides a stable mechanical fulcrum and clear spatial orientation for the operation. The blunt, safety arc end of the isolation shield can actively and precisely insert into the tissue gap, safely separating tissue and creating a stable operating space, while also serving as an auxiliary fulcrum to enhance operational stability. The isolation shield and auxiliary channel work together to make the extension path, angle and depth of the electrode needle highly predictable and repeatable, and its operation accuracy and stability are far superior to that of the electrode needle operated through the long flexible clamp channel of the endoscope. The cap and auxiliary structure, made of insulating transparent material, eliminate unexpected current conduction during electrode needle operation, avoid damage to normal tissue, lower the threshold for complex surgeries, integrate complex functional requirements into a simple integrated structure, and are perfectly compatible with existing endoscopic equipment without the need to modify the main unit or endoscope, enabling good clinical promotion.

[0046] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An endoscope transparent cap with an auxiliary structure, characterized in that, include: The cap has a proximal end and a distal end, the proximal end of which is used to be fitted onto an endoscope, and the distal end of which is used to abut against tissue to form a fulcrum. The cap body is provided with a through main working channel along its axial direction, the main working channel being used for the passage of surgical instruments; An auxiliary structure is protruding from the outer surface of the side wall of the cap. An electrode needle auxiliary channel is formed inside the auxiliary structure, which is independent of the main working channel and extends along the axial direction of the cap. The electrode needle auxiliary channel is used to guide the electrode needle through.

2. The endoscope transparent cap with auxiliary structure according to claim 1, characterized in that, The central axis of the main working clamp channel is parallel to the central axis of the electrode needle auxiliary channel, and there is a preset distance between them in the radial direction.

3. The endoscope transparent cap with auxiliary structure according to claim 2, characterized in that, The radial distance between the central axis of the main working channel and the central axis of the electrode needle auxiliary channel is 2-8 mm.

4. The endoscope transparent cap with auxiliary structure according to claim 1, characterized in that, The inner diameter of the electrode needle auxiliary channel is 0.5-2.5 mm.

5. The endoscope transparent cap with auxiliary structure according to claim 1, characterized in that, Both the cap and the auxiliary structure are made of electrically insulating materials.

6. The endoscope transparent cap with auxiliary structure according to claim 1, characterized in that, The distal end face of the auxiliary structure does not extend beyond the distal end face of the cap.

7. The endoscope cap with auxiliary structure according to claim 1, characterized in that, At least a portion of the distal end face of the auxiliary structure is provided with an isolation cover extending distally.

8. The endoscope transparent cap with auxiliary structure according to claim 7, characterized in that, The isolation shield has a pointed structure with a blunt, safe, rounded end at the top.

9. The endoscope transparent cap with auxiliary structure according to claim 7, characterized in that, The electrode needle auxiliary channel extends through the auxiliary structure and the isolation cover, and the axial length of the electrode needle auxiliary channel is greater than the axial length of the main working channel.

10. An endoscope, characterized in that, Including the endoscope transparent cap with auxiliary structure as described in any one of claims 1-9.

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