Electronic arthroscope with auxiliary cleaning structure

Abstract

The application discloses an electronic joint rigid mirror with an auxiliary cleaning structure and relates to the technical field of electronic joint rigid mirrors, which comprises an operating handle and a rigid tube body. A joint rigid mirror imaging lens is arranged at the end of the rigid tube body away from the operating handle, and a transmission cable electrically connected with the joint rigid mirror imaging lens is arranged on the joint rigid mirror imaging lens. A water storage cabin for storing cleaning water is fixedly installed in the operating handle. An opening and closing mechanism for controlling the flow of the cleaning water in the water storage cabin is arranged in the operating handle. The end of the rigid tube body close to the joint rigid mirror imaging lens is also provided with a cleaning mechanism for cleaning the joint rigid mirror imaging lens. In use, the rigid tube body and the rigid tube connecting end of the operating handle are assembled and sealed, the flow of the cleaning liquid is controlled in cooperation with the water storage cabin, the one-way valve of the water injection pipe and the opening and closing mechanism, the joint rigid mirror imaging lens can be cleaned in real time in the body without taking out the rigid tube body as a whole, and the cleaning can be triggered only by operating the control component.

Description

Technical Field

[0001] This invention relates to the field of electronic rigid arthroscope technology, and more specifically to an electronic rigid arthroscope with an auxiliary cleaning structure. Background Technology

[0002] Electronic arthroscope is a key medical device for minimally invasive diagnosis and treatment of joint cavities. It is widely used for the examination of lesions, tissue biopsies and minimally invasive surgical treatment of the knee, shoulder and hip joints.

[0003] Its core structure mainly includes a stainless steel rigid tube, an imaging lens and illumination assembly set at the front end of the rigid tube, and a signal transmission line and cable interface running through the inside of the rigid tube. The stainless steel rigid tube, as the core support component, not only needs to ensure the overall structural strength of the device to adapt to the operating space of the joint cavity, but also needs to form a sealed protection for the internal precision electronic imaging module, illumination module and transmission line to prevent the intrusion of body fluids and thus prevent equipment failure.

[0004] During joint cavity diagnosis and treatment, the imaging lens at the tip of the rigid tube comes into direct contact with the patient's body fluids, synovial fluid, and tissue debris, making it extremely prone to contamination. This can lead to blurred imaging and severely affect the accuracy of the doctor's observation and operation of the lesion. When the lens is dirty, due to the closed structure of the rigid tube and the protection requirements of the internal electronic components, it is impossible to clean the lens directly inside the patient's body. Instead, the entire electronic rigid arthroscope must be removed from the patient's body, and the lens must be cleaned by external wiping and rinsing before being reinserted to continue the diagnosis and treatment. Summary of the Invention

[0005] In view of the problems existing in the prior art, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide an electronic rigid arthroscope with an auxiliary cleaning structure. The problem it aims to solve is that during joint cavity diagnosis and treatment, the imaging lens at the front end of the rigid tube of the electronic rigid arthroscope is easily contaminated due to contact with the patient's body fluids, synovial fluid, and tissue debris, resulting in a blurred imaging field of view and affecting the accuracy of the doctor's observation and operation. Furthermore, due to the closed structure of the rigid tube and the protection requirements of the internal electronic components, it cannot be directly cleaned inside the body and must be removed as a whole, cleaned externally, and then reinserted.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an electronic rigid arthroscope with an auxiliary cleaning structure, comprising an operating handle and a rigid tube body, wherein an arthroscope imaging lens is provided at the end of the rigid tube body away from the operating handle, and a transmission cable connected to the arthroscope imaging lens is provided on the arthroscope imaging lens; a water storage tank for storing cleaning water is fixedly installed in the operating handle; an opening and closing mechanism for controlling the flow of cleaning water in the water storage tank is provided in the operating handle; and a cleaning mechanism for cleaning the arthroscope imaging lens is also provided at the end of the rigid tube body near the arthroscope imaging lens.

[0008] The operating handle is provided with a rigid pipe connection end for assembling the rigid pipe body. The operating handle is also provided with a water injection pipe connected to the water storage tank, and the transmission cable extends from one end through the water storage tank to the outside of the operating handle.

[0009] A swirling cavity is provided between the transmission cable and the inner wall of the rigid tube body. A guide groove for assembling a cleaning mechanism is provided at one end of the swirling cavity near the connection end of the rigid tube. A cleaning cavity is provided at the other end of the swirling cavity away from the guide groove. The cleaning cavity is connected to the guide groove through the swirling cavity and covers the outside of the articular rigid lens.

[0010] As a preferred embodiment of the electronic arthroscopic rigid endoscope with auxiliary cleaning structure described in this invention, the cleaning mechanism includes vortex points fixedly installed on the inner wall of the rigid tube body. Each vortex point corresponds to a flow guide groove, and the vortex point is located between the vortex cavity and the flow guide groove. A symmetrically distributed diverter tube is provided at the end of the vortex point near the flow guide groove, and a vortex shroud for generating vortices is provided in the vortex point.

[0011] As a preferred embodiment of the electronic arthroscopic rigid endoscope with auxiliary cleaning structure described in this invention, wherein: a funnel-shaped converging cavity is formed in the vortex point, an acceleration cavity and a diffusion groove are respectively formed at both ends of the vortex point, and the acceleration cavity and the diffusion groove are connected through the converging cavity, and both ends of the diverter are located in the converging cavity and the acceleration cavity respectively.

[0012] As a preferred embodiment of the electronic arthroscopic endoscope with auxiliary cleaning structure described in this invention, wherein: the end of the acceleration cavity away from the flow-gathering cavity is a stepped structure with increasing aperture, and the flow-gathering cavity is connected to the flow-guiding groove through the acceleration cavity, and the diffusion groove is a funnel-shaped structure arranged opposite to the flow-gathering cavity.

[0013] As a preferred embodiment of the electronic arthroscopic rigid endoscope with auxiliary cleaning structure described in this invention, the opening and closing mechanism includes a piston chamber and a transition chamber fixedly installed on the water storage tank. The piston chamber has a piston cavity communicating with the water storage tank, and the transition chamber has a transition cavity communicating with the piston cavity. The inner wall of the transition chamber is also provided with a water-dividing ring for separating the flow channel.

[0014] As a preferred embodiment of the electronic articular rigid mirror with auxiliary cleaning structure described in this invention, wherein: the water distribution ring is provided with symmetrically distributed pressurized nozzles, and the pressurized nozzles correspond one-to-one with the guide grooves, and the end of the pressurized nozzle protruding from the water distribution ring is inclined toward the transmission cable.

[0015] As a preferred embodiment of the electronic arthroscopic endoscope with auxiliary cleaning structure described in this invention, the piston chamber is further provided with a water-blocking piston for sealing the water storage tank, and both ends of the water-blocking piston are provided with conical heads to reduce water flow resistance. A protective sleeve distributed along the axial direction of the transmission cable is also fixedly installed on the water-blocking piston.

[0016] As a preferred embodiment of the electronic arthroscopic endoscope with auxiliary cleaning structure described in this invention, the protective sleeve is provided with a waterproof spring, the two ends of the waterproof spring are respectively connected to the water-blocking piston and the water-dividing ring, and the surface of the waterproof spring is treated with waterproof paint.

[0017] As a preferred embodiment of the electronic arthroscopy with auxiliary cleaning structure described in this invention, the rigid tube body is made of stainless steel straight tube.

[0018] In summary, the present invention has at least one of the following beneficial effects:

[0019] 1. This invention, by sealing the rigid tube body and the rigid tube connection end of the operating handle, and cooperating with the water tank, water injection pipe one-way valve and opening and closing mechanism to control the flow of cleaning fluid, enables real-time cleaning of the internal cavity to be triggered by operating the control components when the imaging lens of the articular rigid mirror is dirty, without having to remove the entire rigid tube body.

[0020] 2. This invention uses a transition cavity to buffer water pressure, a water distribution ring to evenly distribute water flow, a pressurizing nozzle to form a "wrap-around" water flow path, and an acceleration cavity, a convergence cavity, a diversion pipe, and a vortex cover at the vortex point to work together to form a stable vortex. This ensures that the cleaning vortex fully contacts the lens surface to achieve comprehensive and thorough rinsing.

[0021] 3. This invention achieves controllable flow of water in the water storage tank through sealing and protective structures such as the water-blocking piston protective sleeve and waterproof spring, which not only ensures the safety and service life of the device, but also improves the adaptability of the device to clinical diagnosis and treatment scenarios. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a cross-sectional perspective view of the present invention;

[0025] Figure 3This is a cross-sectional structural diagram of the rigid tube body of the present invention;

[0026] Figure 4 A cross-sectional view of the rigid pipe body and the cleaning mechanism of the present invention in conjunction with each other.

[0027] Figure 5 A cross-sectional view showing the assembly of the operating handle and the opening / closing mechanism of the present invention.

[0028] Figure 6 For the present invention Figure 5 Enlarged structural diagram of part A;

[0029] Figure 7 This is a structural diagram showing the installation of the opening and closing mechanism and the water storage tank according to the present invention.

[0030] Figure 8 This is a cross-sectional view of the cleaning mechanism of the present invention;

[0031] Figure 9 This is a diagram showing the water flow direction of the cleaning mechanism of the present invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Operating handle; 11. Rigid pipe connection end; 12. Water injection pipe; 2. Rigid pipe body; 21. Swirl chamber; 22. Guide channel; 23. Cleaning chamber; 3. Articular rigid mirror imaging lens; 31. Transmission cable; 4. Water storage tank; 5. Opening and closing mechanism; 51. Piston chamber; 511. Piston cavity; 52. Transition chamber; 521. Transition cavity; 53. Water distribution ring; 531. Pressure boosting nozzle; 54. Water-blocking piston; 541. Protective sleeve; 55. Waterproof spring; 6. Cleaning mechanism; 61. Vortex point; 62. Diverter pipe; 63. Vortex cover; 611. Converging chamber; 612. Acceleration chamber; 613. Diffusion channel. Detailed Implementation

[0034] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] This invention discloses an electronic rigid arthroscope with an auxiliary cleaning structure.

[0036] Example 1

[0037] Reference Figure 1-9This is the first embodiment of the present invention, providing an electronic rigid arthroscope with an auxiliary cleaning structure. This electronic rigid arthroscope includes an operating handle 1 and a rigid tube body 2. An arthroscope imaging lens 3 is located at the end of the rigid tube body 2 furthest from the operating handle 1, and the imaging lens 3 is equipped with a transmission cable 31 connected to an electrical signal. A water storage tank 4 for storing cleaning water is fixedly installed in the operating handle 1, and the operating handle 1 is equipped with an opening and closing mechanism 5 for controlling the flow of cleaning water in the water storage tank 4. The rigid tube body 2 is located near... One end of the arthroscopic imaging lens 3 is also provided with a cleaning mechanism 6 for cleaning the arthroscopic imaging lens 3. The operating handle 1 is provided with a rigid tube connection end 11 for assembling the rigid tube body 2. The operating handle 1 is also provided with a water injection pipe 12 connected to the water storage tank 4. The transmission cable 31 extends from one end through the water storage tank 4 to the outside of the operating handle 1. A vortex cavity 21 is provided between the transmission cable 31 and the inner wall of the rigid tube body 2. The end of the vortex cavity 21 near the rigid tube connection end 11 is provided with a guide groove 22 for assembling the cleaning mechanism 6. The vortex cavity 21 is further away from the rigid tube connection end 11. One end of the guide channel 22 is provided with a cleaning chamber 23, which is connected to the guide channel 22 through a swirling chamber 21. The cleaning chamber 23 covers the outside of the arthroscopic imaging lens 3. The inner wall of the rigid tube connection end 11 of the operating handle 1 is provided with a medical-grade sealing ring, which can achieve waterproof sealing when assembling the rigid tube body 2, preventing cleaning water from leaking from the connection point into the operating handle 1. At the same time, it ensures that the rigid tube body 2 is easy to disassemble and assemble, facilitating the disassembly and disinfection of instruments after surgery. The capacity of the water tank 4 meets the water demand for a single lens cleaning while avoiding excessive volume. The bulky size of the operating handle 1 affects the grip feel. The end of the water injection pipe 12 is equipped with a one-way valve to prevent backflow of cleaning water in the water storage tank 4. The water injection pipe 12 is also compatible with the injection interface of a medical cleaning device, which facilitates the rapid addition of sterile cleaning solution during the process. The passage of the transmission cable 31 through the water storage tank 4 is equipped with a flexible waterproof sealing ring. The cavity wall of the vortex chamber 21 is polished to reduce the flow resistance of the cleaning water and facilitate the formation of a stable vortex. The cleaning chamber 23 ensures that the cleaning water can fully contact the lens surface while avoiding lens displacement caused by water flow impact, thus ensuring imaging stability.

[0038] The cleaning mechanism 6 includes a vortex point 61 fixedly installed on the inner wall of the rigid tube body 2. The vortex point 61 corresponds one-to-one with the guide channel 22, and the vortex point 61 is located between the vortex cavity 21 and the guide channel 22. The end of the vortex point 61 near the guide channel 22 is provided with symmetrically distributed diverter pipes 62, and the vortex point 61 is provided with a vortex shroud 63 for generating vortices. The vortex point 61 is made of medical-grade ABS material and is integrally molded by injection molding. It can perform vortex treatment on the cleaning water transported by the guide channel 22. The diverter pipe 62 can divert the cleaning water flowing in from the guide channel 22 to promote the generation of vortices. The diverter pipe 62 is provided with a specific arrangement of guide holes, which can guide the water flow to rotate along the inner wall of the vortex point 61 to form vortices, enhance the scouring force of the cleaning water on the lens surface, and at the same time avoid the water flow directly impacting the lens and causing surface scratches.

[0039] A funnel-shaped converging cavity 611 is provided in the vortex point 61. An acceleration cavity 612 and a diffusion groove 613 are respectively provided at both ends of the vortex point 61, and the acceleration cavity 612 and the diffusion groove 613 are connected through the converging cavity 611. The two ends of the diverting pipe 62 are located in the converging cavity 611 and the acceleration cavity 612 respectively. The funnel cone angle design of the converging cavity 611 can gather the dispersed water flow flowing into the diverting pipe 62, increase the initial pressure of the water flow, and lay the pressure foundation for the subsequent formation of a stable vortex. The diverting pipe 62 can make the diverted water flow ejected in the converging cavity 611, reducing the turbulence effect generated by the water flow that directly enters the converging cavity 611.

[0040] The end of the accelerating chamber 612 away from the converging chamber 611 has a stepped structure with increasing aperture, and the converging chamber 611 is connected to the guide channel 22 through the accelerating chamber 612. The diffuser 613 has a funnel-shaped structure opposite to the converging chamber 611. The stepped design of the accelerating chamber 612 allows the cleaning water flowing into the guide channel 22 to be further accelerated in the accelerating chamber 612 before entering the converging chamber 611. The funnel cone angle of the diffuser 613 allows the vortex to seamlessly enter the swirl chamber 21 after flowing out of the diffuser 613, maintaining the stability and scouring force of the vortex.

[0041] The opening and closing mechanism 5 includes a piston chamber 51 and a transition chamber 52 fixedly installed on the water storage tank 4. The piston chamber 51 has a piston cavity 511 that communicates with the water storage tank 4. The transition chamber 52 has a transition cavity 521 that communicates with the piston cavity 511. The inner wall of the transition chamber 52 is also provided with a water-dividing ring 53 for separating the guide channel 22. The transition cavity 521 can buffer the water flow and prevent excessive pressure fluctuations when the water in the water storage tank 4 directly enters the guide channel 22. When the water storage tank 4 is closed, the water seal effect reduces the pollution of the clean water in the water storage tank 4 by the external environment. The water-dividing ring 53 is a ring structure that can block the flow of clean water in the guide channel 22 and ensure that the water inflow of each guide channel 22 is uniform, avoiding incomplete cleaning of some areas due to uneven water distribution.

[0042] The water distribution ring 53 is provided with symmetrically distributed pressurized nozzles 531, and the pressurized nozzles 531 correspond one-to-one with the guide grooves 22. The end of the pressurized nozzle 531 protruding from the water distribution ring 53 is inclined towards the transmission cable 31. The pressurized nozzle 531 can guide the cleaning water to flow along the surface of the transmission cable 31 to the vortex cavity 21, forming a "wrap-around" water flow path, which not only avoids the water flow directly impacting the lens, but also washes away the stains attached to the surface of the transmission cable 31.

[0043] The piston chamber 51 is also equipped with a water-blocking piston 54 for sealing the water storage tank 4. Both ends of the water-blocking piston 54 are equipped with conical heads to reduce water flow resistance. A protective sleeve 541 distributed along the axial direction of the transmission cable 31 is also fixedly installed on the water-blocking piston 54. The water-blocking piston 54 is made of medical-grade nitrile rubber, which not only ensures a tight seal with the inner wall of the piston chamber 511, but also reduces the resistance when the water flow is opened or closed through the conical structure, thus avoiding water hammer effect and damage to the water storage tank 4. The protective sleeve 541 is a corrugated pipe structure made of medical-grade polytetrafluoroethylene. It can extend and retract with the axial movement of the water-blocking piston 54, and at the same time wraps the transmission cable 31 to prevent cleaning water from seeping into the cable and ensure stable electrical signal transmission.

[0044] The protective sleeve 541 is fitted with a waterproof spring 55. The two ends of the waterproof spring 55 are respectively connected to the water-blocking piston 54 and the water-dividing ring 53. The surface of the waterproof spring 55 is treated with waterproof paint and is made of 304 stainless steel. When the water-blocking piston 54 is not under force, it can push it to reset and block the water storage tank 4. When water is injected through the water injection pipe 12 and under force, it is compressed to open the water flow. The reset response is short, ensuring timely cleaning operation.

[0045] The rigid pipe body 2 is made of stainless steel straight pipe. The rigid pipe body 2 provides sufficient installation space for the vortex chamber 21 and the transmission cable 31. At the same time, the straight pipe structure facilitates the flow of cleaning water and avoids dead corners caused by bending.

[0046] During the use of this device, the rigid tube body 2 is first assembled through the rigid tube connection end 11 of the operating handle 1. The medical-grade sealing ring on the inner wall of the rigid tube connection end 11 will tightly fit the outer wall of the rigid tube body 2 to form a waterproof seal, preventing subsequent cleaning water from leaking into the operating handle 1 from the connection. The sterile cleaning solution is injected into the water storage tank 4 through the water injection pipe 12 on the operating handle 1. The one-way valve at the end of the water injection pipe 12 will automatically close after the injection is completed to prevent the cleaning solution in the water storage tank 4 from flowing back and to ensure the stable storage of the cleaning solution.

[0047] During diagnosis and treatment, the arthroscopy imaging lens 3 is inserted into the patient's joint cavity and the imaging signal is transmitted to the external device through the transmission cable 31 for the doctor to observe the lesion; at this time, the opening and closing mechanism 5 is in the closed state, and the water-blocking piston 54 is tightly sealed to the outlet of the water storage tank 4 under the elastic force of the waterproof spring 55. The reset force of the waterproof spring 55 ensures the sealing and prevents the cleaning fluid from accidentally flowing out.

[0048] When the surface of the arthroscopic imaging lens 3 becomes dirty due to contact with patient body fluids, synovial fluid, or tissue debris, resulting in a blurred imaging field, it is not necessary to remove the entire rigid tube body 2. Cleaning water can be continuously injected into the water storage tank 4 through the control component on the operating handle 1 in conjunction with the water injection pipe 12. The water-blocking piston 54 in the piston chamber 51 moves axially and compresses the waterproof spring 55. At this time, the blocking state between the water-blocking piston 54 and the outlet of the water storage tank 4 is released, and the cleaning fluid in the water storage tank 4 enters the piston chamber 511 of the piston chamber 51. During the process, the conical heads at both ends of the water-blocking piston 54 will reduce the water flow resistance and avoid water hammer effect that could damage the water storage tank 4. At the same time, the protective sleeve 541 on its outer wall always wraps the transmission cable 31 to prevent the cleaning fluid from seeping into the cable.

[0049] The cleaning fluid flows from the piston chamber 511 into the transition chamber 521 of the transition chamber 52. The transition chamber 521 acts as a buffer to prevent excessive pressure fluctuations when the water in the water storage tank 4 directly enters the guide channel 22. Subsequently, the water flows into the water distribution ring 53 on the inner wall of the transition chamber 52. At the same time, the pressurizing nozzle 531 on the water distribution ring 53 pressurizes the water flow and guides the water flow along the surface of the transmission cable 31 to the guide channel 22, forming a "wrap-around" water flow path. This not only prevents the water flow from directly impacting the articulated rigid lens imaging lens 3, but also simultaneously washes away the stains attached to the surface of the transmission cable 31.

[0050] After the water flows into the guide channel 22, it flows into the corresponding vortex point 61 in the guide channel 22. The water flows into the acceleration chamber 612 of the vortex point 61. The water flows gradually accelerate under the step expansion effect. A part of the accelerated water flows into the funnel-shaped converging chamber 611. The converging chamber 611 gathers the dispersed water flow and further increases the water flow pressure. A part of the water flows through the diverting pipe 62 to divert the accelerated water flow again and spray it out from the converging chamber 611. The water flow is guided to rotate along the inner wall of the vortex point 61. With the assistance of the vortex cover 63, a stable vortex is formed and seamlessly enters the vortex chamber 21 through the diffuser 613.

[0051] The stable vortex in the vortex chamber 21 flows to the cleaning chamber 23, which ensures that the vortex can fully contact the surface of the arthroscopy imaging lens 3 to thoroughly flush away dirt, while avoiding the displacement of the arthroscopy imaging lens 3 caused by the water flow impact. This ensures that the imaging signal is stable during the cleaning process, and the doctor can observe the cleaning effect in real time until the field of vision is clear. During the cleaning process, other medical instruments also need to be used, such as a drainage device to drain the water after cleaning.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An electronic rigid arthroscopy with an auxiliary cleaning structure, characterized in that: The device includes an operating handle (1) and a rigid tube body (2). The rigid tube body (2) is provided with an arthroscopic imaging lens (3) at one end away from the operating handle (1), and the arthroscopic imaging lens (3) is provided with a transmission cable (31) connected to an electrical signal. A water storage tank (4) for storing cleaning water is fixedly installed in the operating handle (1). The operating handle (1) is provided with an opening and closing mechanism (5) for controlling the flow of cleaning water in the water storage tank (4). The rigid tube body (2) is also provided with a cleaning mechanism (6) for cleaning the arthroscopic imaging lens (3) at one end near the arthroscopic imaging lens (3). The operating handle (1) is provided with a rigid pipe connection end (11) for assembling the rigid pipe body (2), and the operating handle (1) is also provided with a water injection pipe (12) connected to the water storage tank (4), and the transmission cable (31) extends from one end through the water storage tank (4) to the outside of the operating handle (1). A swirling cavity (21) is provided between the inner wall of the transmission cable (31) and the rigid tube body (2). A guide groove (22) for assembling the cleaning mechanism (6) is provided at one end of the swirling cavity (21) near the rigid tube connection end (11). A cleaning cavity (23) is provided at the other end of the swirling cavity (21) away from the guide groove (22). The cleaning cavity (23) is connected to the guide groove (22) through the swirling cavity (21), and the cleaning cavity (23) covers the outside of the articular rigid mirror imaging lens (3). The cleaning mechanism (6) includes a vortex point (61) fixedly installed on the inner wall of the rigid pipe body (2). The vortex point (61) corresponds one-to-one with the guide channel (22), and the vortex point (61) is located between the vortex cavity (21) and the guide channel (22). The vortex point (61) is provided with a symmetrically distributed diverter pipe (62) at one end near the guide channel (22), and the vortex point (61) is provided with a vortex shroud (63) for generating vortices. The vortex point (61) is provided with a funnel-shaped convergence cavity (611). The two ends of the vortex point (61) are respectively provided with an acceleration cavity (612) and a diffusion channel (613), and the acceleration cavity (612) and the diffusion channel (613) are connected through the convergence cavity (611). The two ends of the diverter pipe (62) are respectively located in the convergence cavity (611) and the acceleration cavity (612). The end of the acceleration cavity (612) away from the flow-gathering cavity (611) is a stepped structure with increasing aperture, and the flow-gathering cavity (611) is connected to the flow-guiding groove (22) through the acceleration cavity (612). The diffusion groove (613) is a funnel-shaped structure opposite to the flow-gathering cavity (611).

2. The electronic rigid arthroscope with auxiliary cleaning structure according to claim 1, characterized in that, The opening and closing mechanism (5) includes a piston chamber (51) and a transition chamber (52) fixedly installed on the water storage tank (4). The piston chamber (51) has a piston cavity (511) connected to the water storage tank (4). The transition chamber (52) has a transition cavity (521) connected to the piston cavity (511). The inner wall of the transition chamber (52) is also provided with a water-dividing ring (53) for separating the guide channel (22).

3. The electronic rigid arthroscope with an auxiliary cleaning structure according to claim 2, characterized in that, The water distribution ring (53) is provided with symmetrically distributed booster nozzles (531), and the booster nozzles (531) correspond one-to-one with the guide groove (22). The end of the booster nozzle (531) protruding from the water distribution ring (53) is inclined toward the transmission cable (31).

4. The electronic rigid arthroscope with an auxiliary cleaning structure according to claim 2, characterized in that, The piston chamber (51) is also provided with a water-blocking piston (54) for sealing the water storage tank (4), and both ends of the water-blocking piston (54) are provided with conical heads to reduce water flow resistance. The water-blocking piston (54) is also fixedly installed with a protective sleeve (541) distributed along the axial direction of the transmission cable (31).

5. The electronic rigid arthroscope with an auxiliary cleaning structure according to claim 4, characterized in that, The protective sleeve (541) is fitted with a waterproof spring (55), the two ends of which are respectively connected to the water-blocking piston (54) and the water-dividing ring (53). The surface of the waterproof spring (55) is treated with waterproof paint.

6. The electronic rigid arthroscope with auxiliary cleaning structure according to claim 1, characterized in that, The rigid tube body (2) is made of stainless steel straight tube.

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