A disposable choledochoscope with built-in thulium laser

Abstract

The utility model discloses a one -off biliary tract mirror of built -in thulium laser, include: mirror body, the mirror body is equipped with instrument channel along its axial direction, and instrument channel penetrates mirror body, head end subassembly is equipped with thulium laser installation cavity in mirror body front end, and avoids the entrance and exit of instrument channel, and the head end subassembly front end is equipped with thulium laser installation cavity, thulium laser module is installed in thulium laser installation cavity, and thulium laser module includes retractable thulium laser probe, and the output end of thulium laser probe is towards the front, and thulium laser probe is housed in thulium laser installation cavity under initial state, and thulium laser probe is protruding in thulium laser installation cavity under working condition. The utility model discloses a one -off biliary tract mirror mirror body's front end integration thulium laser module, and retains independent original instrument channel, and the conflict problem of thulium laser probe occupation instrument channel is solved thoroughly.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a disposable cholangioscope with an integrated thulium laser. Background Technology

[0002] As a key instrument for the diagnosis and treatment of biliary tract diseases, the core function of the cholangioscopy relies on the coordinated operation of visual observation and instrument manipulation. Conventional cholangioscopy, including disposable cholangioscopy, has a through-channel instrument channel along the axis of the endoscope. This channel is mainly used for the entry and exit of various instruments such as lithotripsy probes, stone suction tubes, and stone retrieval baskets to complete treatment operations such as stone fragmentation and stone retrieval. In the treatment of biliary stones, thulium laser has become the mainstream lithotripsy method due to its high stone fragmentation efficiency and minimal damage to bile duct tissue. However, existing cholangioscopy systems have a core drawback that is difficult to overcome: because the thulium laser probe must be inserted through the cholangioscopy's single instrument channel, the stone fragmentation procedure conflicts with other surgical procedures. For example, when the laser probe occupies the instrument channel for stone fragmentation, it is impossible to simultaneously insert a suction tube through the same channel to remove stone fragments or to retrieve stones using a stone retrieval basket, requiring repeated insertion and removal of the laser probe to switch between procedures. This conflict leads to multiple problems: first, it prolongs the operation time, as repeated switching of procedures increases the duration of a single operation; second, it increases surgical risks, as frequent probe insertion and removal can easily cause friction damage to the bile duct wall, and stone displacement and bile reflux may occur during interruptions; third, it reduces the ease of operation, as doctors need to frequently adjust instruments, increasing the complexity of the procedure and the risk of intraoperative contamination.

[0003] The above shortcomings urgently need to be addressed. Utility Model Content

[0004] In order to overcome the problem that the thulium laser probe occupies the only instrument channel of the choledochoscope in the existing technology, which causes the stone fragmentation operation to conflict with other surgical operations, thus leading to prolonged operation time, increased surgical risk and reduced operation convenience, this utility model provides a disposable choledochoscope with built-in thulium laser.

[0005] The technical solution of this utility model is as follows: A disposable cholangioscope with a built-in thulium laser, comprising: The scope body has an instrument channel along its axial direction, and the instrument channel passes through the scope body; A head-end assembly is located at the front end of the mirror body and avoids the entrance and exit of the instrument channel. The front end of the head-end assembly is provided with a thulium laser mounting cavity. A thulium laser module is installed inside the thulium laser mounting cavity. The thulium laser module includes a retractable thulium laser probe with its output end facing forward. In the initial state, the thulium laser probe is retracted inside the thulium laser mounting cavity, and in the working state, the thulium laser probe extends out of the thulium laser mounting cavity.

[0006] As a preferred embodiment of this utility model, the mirror body is a flexible tubular structure.

[0007] As a preferred embodiment of this utility model, the mirror body is further provided with a first line channel along its axial direction for the control line of the thulium laser module to pass through, and the first line channel is connected to the thulium laser mounting cavity.

[0008] As a preferred embodiment of this utility model, the front end of the head assembly is further provided with a visual mounting cavity, and a camera module is installed in the visual mounting cavity, with the shooting end of the camera module facing forward.

[0009] As a preferred embodiment of this utility model, the mirror body is further provided with a second line channel along its axial direction for the control line of the camera module to pass through, and the second line channel is connected to the visualization mounting cavity.

[0010] As a preferred embodiment of this utility model, the camera module includes a camera and a plurality of fill lights arranged around the camera, and the visual mounting cavity includes a camera mounting cavity for mounting the camera and a plurality of fill light mounting cavities for mounting the fill lights.

[0011] As a preferred embodiment of this utility model, two fill lights are provided, and the two fill lights are arranged around both sides of the camera.

[0012] As a preferred embodiment of this utility model, the camera is a miniature high-definition camera.

[0013] As a preferred embodiment of this utility model, the supplementary light is a white LED light.

[0014] In a preferred embodiment of this utility model, the instrument channel, the thulium laser module, and the camera module are arranged in a triangular pattern.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. By integrating a thulium laser module into the front end of a disposable cholangioscope while retaining the original independent instrument channel, the conflict of the thulium laser probe occupying the instrument channel is completely resolved. Stone fragmentation, stone suction, and stone removal can be performed simultaneously, reducing the number of procedure changes and shortening the duration of a single operation. 2. The thulium laser module and the camera module are designed with independent layout. The thulium laser probe of the thulium laser module does not obstruct the field of view of the camera module during the raising and lowering process, so that doctors can observe the location of the broken stones and the condition of the bile duct in real time, reducing the risk of bile duct perforation and bleeding caused by blind operation; at the same time, it reduces the number of times the thulium laser probe is inserted and removed, reducing the probability of bile duct wall damage. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a front view of a disposable cholangioscope with a built-in thulium laser in one embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a disposable cholangioscope with a built-in thulium laser in the retracted thulium laser probe state according to one embodiment of the present invention. Figure 3 This is a schematic diagram of the structure of a disposable cholangioscope with a built-in thulium laser in one embodiment of the present invention, showing the thulium laser probe extended. Figure 4 This is a front view of the mirror body and head end assembly in one embodiment of the present invention; Figure 5 for Figure 4 Sectional view of AA.

[0018] In the diagram, 1. Endoscope body; 11. Instrument channel; 12. First line channel; 2. Head end assembly; 21. Thulium laser mounting cavity; 22. Visualization mounting cavity; 221. Camera mounting cavity; 222. Fill light mounting cavity; 3. Thulium laser module; 31. Thulium laser probe; 4. Camera module; 41. Camera; 42. Fill light. Detailed Implementation

[0019] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be noted that similar reference numerals and letters in the following drawings indicate similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. It is also declared that the embodiments described below are only for explaining this utility model and are not intended to limit this utility model.

[0020] It should be noted that the terms "installation," "setting," "connection," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly defined. Indications of orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component 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. The terms "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implying a number of technical features. "A plurality of" means two or more, unless otherwise explicitly defined. "Several" means one or more, unless otherwise explicitly defined.

[0021] Please see Figures 1 to 5 An embodiment of this utility model provides a disposable cholangioscope with a built-in thulium laser, including a scope body 1, a head assembly 2, a thulium laser module 3, and a camera module 4.

[0022] The endoscope body 1 is a flexible tubular structure that can deform flexibly with the physiological curvature of the bile duct, avoiding rigid friction damage to the bile duct wall during insertion or operation and reducing the risk of tissue damage during surgery. The endoscope body 1 has an instrument channel 11 along its axis, which runs through the endoscope body 1, providing a passage for various instruments such as lithotripsy probes, stone suction tubes, and stone retrieval baskets to enter and exit, meeting the needs of basic treatment operations such as lithotripsy and stone retrieval.

[0023] The head-end assembly 2 is located at the front end of the scope body 1, avoiding the entrance and exit of the instrument channel 11. This prevents the head-end assembly 2 from interfering with the instrument channel 11 and ensures that various instruments can pass through the instrument channel 11 smoothly for operation. The front end of the head-end assembly 2 is provided with a thulium laser mounting cavity 21 and a visualization mounting cavity 22, providing dedicated mounting positions for the thulium laser module 3 and the camera module 4, enabling the two modules to function stably and accurately without interfering with each other.

[0024] The thulium laser module 3 is installed inside the thulium laser mounting cavity 21. The thulium laser module 3 includes a retractable thulium laser probe 31, with the output end of the thulium laser probe 31 facing forward (i.e., the direction of stone crushing operation). In the initial state, the thulium laser probe 31 is retracted inside the thulium laser mounting cavity 21 to avoid collision between the thulium laser probe 31 and the bile duct wall when inserted into the bile duct. In the working state, the thulium laser probe 31 extends out of the thulium laser mounting cavity 21 to perform stone crushing operation, thereby improving the flexibility and practicality of the equipment.

[0025] The camera module 4 is installed inside the visualization installation cavity 22. The camera end of the camera module 4 faces forward, which can clearly capture the internal condition of the bile duct, providing doctors with a real-time and accurate surgical field of vision, and helping doctors to accurately judge the condition and perform surgical operations.

[0026] Please see Figure 1 In one embodiment, the instrument channel 11, the thulium laser module 3, and the camera module 4 are arranged in a triangular pattern, which allows the three to work independently yet collaboratively in space, avoiding mutual interference and ensuring that lithotripsy, visualization, and other surgical procedures can be performed simultaneously and efficiently, further improving surgical efficiency and safety.

[0027] Please see Figure 5 In one embodiment, the mirror body 1 is also provided with a first line channel 12 along its axial direction for the control line of the thulium laser module 3 to pass through. The first line channel 12 is connected to the thulium laser mounting cavity 21 to realize the connection between the thulium laser module 3 and the external control terminal, thereby controlling the contraction of the thulium laser probe 31 and the emission of thulium laser, ensuring the normal realization of the thulium laser lithotripsy function.

[0028] In one embodiment, the endoscope 1 is also provided with a second line channel along its axis for the control line of the camera module 4 to pass through. The second line channel is connected to the visualization mounting cavity 22, and the control line of the camera module 4 is connected to an external control terminal to achieve the purpose of real-time visualization observation during the operation, providing doctors with a clear surgical field of vision and improving the accuracy of surgical operations.

[0029] Please see Figures 1 to 4 In one embodiment, the camera module 4 includes a camera 41 and a plurality of supplementary lights 42 arranged around the camera 41. The visualization mounting cavity 22 includes a camera mounting cavity 221 for mounting the camera 41 and a plurality of supplementary light mounting cavities 222 for mounting the supplementary lights 42. By setting supplementary lights 42 around the camera 41, uniform and sufficient light can be provided within the bile duct, enabling the camera 41 to capture clearer and more accurate images, providing doctors with better visualization conditions, thereby improving the precision and safety of the surgery. The camera 41 is a miniature high-definition camera, selected as a small-sized model adapted to the bile duct space, with its lens facing forward to capture images within the bile duct. The supplementary lights 42 are white LED lights, which have advantages such as high luminous efficiency, long lifespan, and small size. In cholangioscopic surgery, a stable light source is required for a long time. The long lifespan of white LED lights ensures continuous and stable illumination throughout the entire surgical process, reducing the risk of the surgical process being affected by light malfunctions.

[0030] In one specific embodiment, two supplementary lights 42 are provided, arranged around both sides of the camera 41. The two supplementary lights 42 can provide symmetrical light on both sides of the camera 41, further reducing shadows within the bile duct and making the captured image more uniform and brighter. Compared to a single supplementary light 42, two supplementary lights 42 can expand the illumination range and increase the light intensity, better meeting the visualization needs of the complex environment within the bile duct.

[0031] In one embodiment, the tip assembly 2 is integrally formed with the endoscope body 1, or fixed with a medical-grade adhesive. The integral design makes the tip assembly 2 and the endoscope body 1 a single unit, significantly improving structural stability and strength. Using a medical-grade adhesive to fix the tip assembly 2 and the endoscope body 1 allows for the selection of appropriate adhesives and bonding processes based on different design requirements and practical needs, achieving a reliable connection between the tip assembly 2 and the endoscope body 1. In some cases, if individual replacement or repair of the tip assembly 2 or the endoscope body 1 is required, fixing them with adhesive makes separation relatively easy, improving the maintainability of the equipment.

[0032] In one embodiment, the thulium laser module 3 further includes a linear drive module fixed within the thulium laser mounting cavity 21. The drive end of the linear drive module is connected to the thulium laser probe 31 to drive the thulium laser probe 31 to extend or retract into the thulium laser mounting cavity 21. The linear drive module can be a micro linear motor, a micro cylinder, a micro hydraulic cylinder, etc., and this invention does not limit its use.

[0033] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

[0034] The present utility model patent has been described above with reference to the accompanying drawings. Obviously, the implementation of the present utility model patent is not limited to the above-described manner. Any improvements made by adopting the inventive concept and technical solution of the present utility model patent, or the direct application of the inventive concept and technical solution of the present utility model patent to other occasions without modification, are all within the protection scope of the present utility model.

Claims

1. A disposable cholangioscope with a built-in thulium laser, characterized in that, include: The scope body has an instrument channel along its axial direction, and the instrument channel passes through the scope body; A head-end assembly is located at the front end of the mirror body and avoids the entrance and exit of the instrument channel. The front end of the head-end assembly is provided with a thulium laser mounting cavity. A thulium laser module is installed inside the thulium laser mounting cavity. The thulium laser module includes a retractable thulium laser probe with its output end facing forward. In the initial state, the thulium laser probe is retracted inside the thulium laser mounting cavity, and in the working state, the thulium laser probe extends out of the thulium laser mounting cavity.

2. The disposable cholangioscope with built-in thulium laser according to claim 1, characterized in that, The mirror body is a flexible tubular structure.

3. The disposable cholangioscope with built-in thulium laser according to claim 1, characterized in that, The mirror body is also provided with a first line channel along its axial direction for the control line of the thulium laser module to pass through, and the first line channel is connected to the thulium laser mounting cavity.

4. The disposable cholangioscope with built-in thulium laser according to claim 1, characterized in that, The front end of the head assembly is also provided with a visual mounting cavity, in which a camera module is installed, with the camera module's shooting end facing forward.

5. The disposable cholangioscope with built-in thulium laser according to claim 4, characterized in that, The mirror body is also provided with a second wiring channel along its axial direction for the control lines of the camera module to pass through, and the second wiring channel is connected to the visualization mounting cavity.

6. The disposable cholangioscope with built-in thulium laser according to claim 4, characterized in that, The camera module includes a camera and several fill lights arranged around the camera. The visual mounting cavity includes a camera mounting cavity for mounting the camera and several fill light mounting cavities for mounting the fill lights.

7. The disposable cholangioscope with built-in thulium laser according to claim 6, characterized in that, The camera is provided with two fill lights, which are arranged around both sides of the camera.

8. The disposable cholangioscope with built-in thulium laser according to claim 6, characterized in that, The camera is a miniature high-definition camera.

9. The disposable cholangioscope with built-in thulium laser according to claim 6, characterized in that, The supplementary light is a white LED light.

10. The disposable cholangioscope with built-in thulium laser according to claim 4, characterized in that, The instrument channel, the thulium laser module, and the camera module are arranged in a triangular pattern.

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