Integrated arthroscope cutter with telescopic guide pin

Abstract

The utility model provides an integrated arthroscope cutter with a telescopic guide needle, which is applied to the technical field of orthopedic sports medicine, and comprises a cutter handle main body provided with a blade arranged in a sliding manner, and a guide structure arranged on the cutter handle main body and / or the blade and used for guiding the blade to move on the cutter handle main body, according to the cutter, rapid switching of multiple blades is achieved through the sliding block system, frequent tool replacement in an operation is avoided, and the operation efficiency is remarkably improved; by arranging the guide structure, accurate movement of the blade under the guide of the guide structure is achieved, the cutter can accurately stretch out and draw back to the joint positioning position through the guide of the guide structure, complex operation is facilitated, misoperation is effectively reduced, the accuracy and safety of an operation are further improved, and the multifunctional surgical instrument has the advantages of being integrated in multiple functions, accurate in operation, clear in view field, convenient to use and efficient.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of orthopedic sports medicine, in particular to an integrated arthroscopic cutter with telescopic guide needles. BACKGROUND

[0002] Arthroscopic surgery is a minimally invasive surgical technique that is widely used due to its small trauma and fast recovery. However, in current arthroscopic surgery, the surgeon often needs to replace multiple types of cutters and auxiliary instruments such as round knives, sharp knives and guide needles according to the surgical needs. This frequent replacement of cutters not only increases the operation time, but also may increase the risk of surgical infection. In addition, the existing cutter design is relatively single, which makes it difficult to achieve multifunctional operation, affecting the convenience and efficiency of the operation. There is no special cutter that can adapt to the guide needle on the market, and there is also a lack of integrated instruments that can achieve free telescoping and precise positioning under the guidance of the guide needle. At the same time, most arthroscopic surgical cutters fail to integrate suction devices, resulting in the need for additional equipment to remove blood during surgery, increasing the complexity of the instruments and the operation burden.

[0003] Therefore, there is an urgent need for a special arthroscopic surgical cutter that can freely telescope under the guidance of a guide needle, adapt to multiple blade types and integrate suction functions, which will significantly improve the efficiency, safety and convenience of arthroscopic surgery, meet clinical needs and fill the gap in existing technology. CONTENT OF THE INVENTION

[0004] In order to overcome the above-mentioned deficiencies, the application provides an integrated arthroscopic cutter with telescopic guide needles, which facilitates complex operations and improves surgical efficiency.

[0005] In a first aspect, the application provides an integrated arthroscopic cutter with telescopic guide needles, comprising a cutter handle body, the cutter handle body being provided with a slidingly arranged blade, and the technical solution is as follows:

[0006] Further comprising a guide structure arranged on the cutter handle body and / or the blade for guiding the movement of the blade on the cutter handle body.

[0007] The integrated arthroscopic cutter with telescopic guide needles provided by the application effectively solves the technical problems of the cutter being difficult to achieve multifunctional operation and precise positioning in arthroscopic surgery by innovatively designing the telescopic blade and the guide structure. The slidingly arranged blade on the cutter handle body allows the blade to freely telescope and achieve multifunctional operation, and the guide structure ensures the precise positioning of the blade during movement. This design not only improves the efficiency and accuracy of the operation, but also increases the safety of the operation.

[0008] Further, the application also provides that the cutter handle body is double-sided sliding rail, and a sliding block is slidingly arranged on the sliding rail.

[0009] The application provides a telescopic guide needle integrated arthroscopic tool, which realizes the sliding movement of the blade on the shank body by arranging sliding rails on both sides of the shank body and arranging sliding blocks on the sliding rails.

[0010] Further, the application also provides that the sliding block is provided with a clamping groove for mounting the blade, and the clamping groove is downwardly open and suitable for different types of blades.

[0011] The application provides a telescopic guide needle integrated arthroscopic tool, which can be suitable for different types of blades, which means that different shapes, sizes or functions of blades can be used on the same tool, increasing the versatility and flexibility of the tool. Doctors can quickly replace suitable blades according to different stages or different needs of the operation without replacing the entire tool. This not only improves the efficiency of the operation, but also reduces the number of tool changes during the operation, thereby reducing the risk of infection.

[0012] Further, the application also provides that the guide structure includes a guide needle pipeline built in the sliding block and a guide needle, the guide needle is arranged in the guide needle pipeline, and a guiding and positioning function is provided.

[0013] The application provides a telescopic guide needle integrated arthroscopic tool, and the guide needle pipeline built in the sliding block provides a fixed channel for the guide needle, the guide needle is arranged in the guide needle pipeline and can freely slide in the pipeline. This design enables the guide needle to remain stable during use of the tool while not affecting the sliding of the tool. The presence of the guide needle provides a guiding and positioning function for the tool, so that the tool can move accurately along a predetermined path.

[0014] Further, the application also provides that the sliding block is provided with a pressing knob for controlling the up-down movement of the guide needle.

[0015] The application provides a telescopic guide needle integrated arthroscopic tool, which provides a simple and effective method for controlling the up-down movement of the guide needle by adding a pressing knob on the sliding block. The operator can adjust the position of the guide needle by rotating the pressing knob according to the needs of the operation to achieve accurate positioning and guidance, which not only improves the accuracy of the operation, but also increases the flexibility of the tool use. At the same time, this design also facilitates the operator to quickly adjust the position of the guide needle during the operation, improving the efficiency of the operation.

[0016] Further, the application also provides that the pressing knob is connected with the sliding block in a threaded connection manner, and the guide needle is fixed and released by rotating the pressing knob.

[0017] The application utilizes the characteristics of threaded connection, and can accurately control the fixing degree of the guide needle through simple rotation operation. Compared with other fixing modes, threaded connection provides more precise adjustment capability, so that the doctor can easily adjust the fixing force of the guide needle according to needs. Meanwhile, the mechanism is simple and reliable, and the operation is intuitive, which is beneficial to quickly and accurately adjust the position of the guide needle during the operation process, and improves the accuracy and efficiency of the operation process.

[0018] Further, the application also proposes that the two sides of the knife handle body are hollow pipes, and further comprises a knife handle cover connected with the hollow pipes.

[0019] The integrated arthroscope knife of the telescopic guide needle provided by the application integrates the hollow pipe, the knife handle cover, the sliding blade and the guide structure on the knife handle body, which realizes multifunctional integration, solves the problem of single structure and limited function of the traditional arthroscope knife, improves the use efficiency of the knife, and may reduce the frequency of tool replacement during the operation process, thereby improving the operation efficiency and reducing the risk of infection.

[0020] Further, the application also proposes that the knife handle cover is provided with a vent hole connected with a negative pressure device.

[0021] The integrated arthroscope knife of the telescopic guide needle provided by the application integrates the hollow pipe, the knife handle cover, the sliding blade and the guide structure on the knife handle body, which realizes multifunctional integration, solves the problem of single structure and limited function of the traditional arthroscope knife, improves the use efficiency of the knife, and may reduce the frequency of tool replacement during the operation process, thereby improving the operation efficiency and reducing the risk of infection.

[0022] Further, the application also proposes that the hollow pipe is communicated with the negative pressure device, so that the hollow pipe maintains a negative pressure state.

[0023] The integrated arthroscope knife of the telescopic guide needle provided by the application realizes the continuous negative pressure state of the hollow pipe. This design enables the arthroscope knife to continuously remove blood and tissue fragments during the operation process, and maintains the clarity of the operation field. By integrating the suction function, the use of additional equipment is reduced, the operation process is simplified, and the operation efficiency and safety are improved.

[0024] Further, the application also proposes that the surface of the knife handle body is provided with a closed switch for controlling the suction function of the hollow pipe.

[0025] By setting the closed switch on the surface of the shank body, direct control of the hollow pipe suction function is achieved. This design takes into account the convenience and efficiency of surgical operation, allowing the doctor to easily adjust the suction state while maintaining the surgical posture. The closed switch is conveniently located for easy operation, allowing quick response to different needs during surgery, such as removing blood or tissue debris, or temporarily stopping suction for delicate operations.

[0026] Beneficial effects: The application provides a telescopic guide needle integrated arthroscopic knife, including a shank body, the shank body is provided with a slidingly arranged blade, further including a guide structure, which is arranged on the shank body and / or the blade, for guiding the movement of the blade on the shank body. By setting the guide structure, the precise movement of the blade under the guidance is realized, solving the problem of lack of guiding function in the prior art, with the advantages of multifunctional integration, precise operation, clear vision, convenience and efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 A structural diagram of a telescopic guide needle integrated arthroscopic knife provided by the application.

[0028] Figure 2 A side view of a telescopic guide needle integrated arthroscopic knife provided by the application.

[0029] Figure 3 A rear view of a telescopic guide needle integrated arthroscopic knife provided by the application.

[0030] Figure 4 A side view of a telescopic guide needle integrated arthroscopic knife provided by the application with a guide needle.

[0031] In the figure: 1, shank body; 2, hollow pipe; 3, sliding rail; 4, shank cover; 5, sliding block; 51, first sliding block; 52, second sliding block; 61, first blade; 62, second blade; 7, guide needle pipe; 8, air vent; 9, closed switch; 10, pressure knob; 11, guide needle. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and indicated in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0033] It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0034] In arthroscopic surgery, the existing knife design has technical problems in multifunctional operation and precise positioning. Specifically, traditional knives usually need to be frequently replaced to adapt to different surgical needs, which not only increases the operation time, but also may increase the risk of infection. Different types of knives need to be used during the operation to remove, trim and transplant cartilage. When using traditional knives, the doctor needs to frequently replace different types of knives such as round knives and sharp knives, and each replacement needs to be repositioned, which not only prolongs the operation time, but also increases the risk of operation. More importantly, when performing delicate operations such as cartilage transplantation positioning, traditional knives lack precise positioning function, which may cause deviation of the transplantation position, affecting the accuracy and safety of the operation. These problems directly affect the efficiency, accuracy and patient recovery of the operation.

[0035] To solve this problem, the present application provides an integrated arthroscopic knife with a telescopic guide needle, which includes a knife handle body 1, the knife handle body 1 is provided with a slidingly arranged blade, and further includes a guide structure arranged on the knife handle body 1 and / or the blade for guiding the movement of the blade on the knife handle body 1. Wherein, the knife handle body 1 refers to the main structural part for holding and controlling the knife, which can be made of metal or high-strength plastic material, in the shape of a long strip or other shapes convenient for holding. The slidingly arranged blade refers to the cutting part that can move on the knife handle body 1, which can be made of stainless steel or other metal materials suitable for medical purposes, connected with the knife handle body 1 through a sliding mechanism.

[0036] The core innovation of the present application is the combination of a telescopic blade and a guide structure. By setting a sliding blade on the handle body 1, the telescopic function of the knife is realized, allowing the doctor to adjust the blade position flexibly according to the operation needs. At the same time, the design of the guide structure enables the blade to achieve precise positioning. This innovative combination solves the technical problems of difficulty in realizing multifunctional operation and precise positioning of the knife in arthroscopic surgery. The handle body 1 as the basic structure of the entire knife adopts ergonomic design to ensure that the operator can hold it comfortably and stably. The handle body 1 is provided with a sliding mechanism for installing and guiding the blade movement. The blade is connected to the sliding mechanism through a sliding block or other connecting piece, allowing it to slide freely on the handle body 1. The guide structure is set on the handle body 1 and / or the blade, which can be an internal pipeline or an external groove, cooperating with the guide needle 11 to provide precise guidance for the movement of the blade. When the blade position needs to be adjusted, the operator can push or pull the blade to make it slide on the handle body 1, and through the cooperation with the guide structure, ensure that the blade moves along the predetermined path to achieve precise positioning.

[0037] The handle body 1, the slidingly arranged blade and the guide structure work together. The handle body 1 provides a stable operation platform, the slidingly arranged blade realizes the telescopic function of the knife, and the guide structure ensures the precision of the blade movement. This design allows the doctor to adjust the blade position flexibly during the operation, while ensuring the accuracy of positioning, thereby improving the efficiency and safety of the operation. The slidingly arranged blade is selected instead of a fixed blade to realize the multifunctional operation of the knife. This design allows the doctor to adjust the blade position to adapt to different operation needs without changing the knife, thereby reducing the number of operation interruptions and instrument replacements. The design of the guide structure is to solve the problem of precise positioning. The guide structure can provide accurate path guidance, greatly improving the accuracy of blade positioning and movement. This is particularly important for arthroscopic surgery that requires high precision operation, which can significantly improve the success rate of the operation and the prognosis of the patient.

[0038] Please refer to Figure 1 , the telescopic guide needle integrated arthroscopic knife, the handle body 1 is provided with a sliding block 5 on the sliding rail 3.

[0039] The slide rail 3 provides a moving track for the sliding block 5, ensuring the sliding block 5 moves along a predetermined path. The sliding block 5 is connected to the blade, and the movement of the blade is realized by the sliding of the sliding block 5 on the slide rail 3. This design enables the blade to move stably and controllably on the shank body 1. The technical solution achieves the sliding movement of the blade on the shank body 1 by setting the slide rail 3 on both sides of the shank body 1 and sliding the sliding block 5 on the slide rail 3. The cooperation of the slide rail 3 and the sliding block 5 provides a stable moving track for the blade, ensuring the accuracy and controllability of the blade movement. This design not only solves the problem of blade sliding movement, but also improves the flexibility and accuracy of the tool operation, which is beneficial to improve the efficiency and safety of the operation.

[0040] The slide rail 3 on both sides of the shank body 1 can be realized in various forms. For example, the slide rail 3 can be a groove structure, and a long strip-shaped groove is opened on both sides of the shank body 1; or it can be a protrusion structure, and a long strip-shaped protrusion is provided on both sides of the shank body 1. The material of the slide rail 3 can be selected from metal materials such as stainless steel to provide sufficient strength and wear resistance; or high-strength engineering plastics can be selected to reduce the overall weight. The design of the sliding block 5 can also have many variants. The sliding block 5 can adopt a shape matching the slide rail 3, such as a protrusion type slide rail corresponding to a groove type sliding block, and a groove type slide rail corresponding to a protrusion type sliding block. The material of the sliding block 5 can be selected from low-friction coefficient materials such as polytetrafluoroethylene (PTFE) to reduce sliding resistance and improve the smoothness of movement. The connection between the sliding block 5 and the blade can be fixed or detachable, which is convenient for replacing different types of blades.

[0041] The cooperation of the slide rail 3 and the sliding block 5 realizes the stable sliding of the blade on the shank body 1. The slide rail 3 provides a fixed moving path, ensuring the linearity and accuracy of the blade movement. The sliding block 5, as the carrier of the blade, moves smoothly on the slide rail 3, reducing the shaking and deviation of the blade during movement. This design not only solves the problem of blade sliding movement, but also brings additional advantages: first, the sliding block 5 can be designed to adapt to the structure of different types of blades, increasing the versatility of the tool; second, the movement of the sliding block 5 can be accurately controlled by the scale or other indicating devices to improve the accuracy of the surgical operation.

[0042] Compared with the prior art, the technical solution of the present application has obvious advantages. Traditional arthroscopic tools usually use fixed blades or need to completely replace the tool to adjust the blade length, which is cumbersome and increases the operation time. The present application realizes the rapid and accurate adjustment of the blade through the design of the slide rail 3 and the sliding block 5, greatly improves the operation efficiency, so that a single tool can complete various surgical operations, reduces the number of instrument changes, and reduces the risk of infection. In addition, the design of the present application also improves the accuracy and stability of the tool, which helps to improve the safety and effectiveness of the operation.

[0043] Wherein, in practical application, the sliding block 5 is provided with a clamping groove for installing the blade, and the clamping groove is open downward, which is suitable for different types of blades.

[0044] Please refer to Figure 2 and Figure 3 , Figure 2 is a side view of the telescopic guide needle integrated arthroscopic cutter of the present application, Figure 3 is a rear view, the cutter provided by the present application is provided with two sliding rails 3, and the sliding block 5 is arranged on each of the two sliding rails 3, Figure 2 respectively, the first sliding block 51 and the second sliding block 52 are arranged on the two sliding blocks, respectively, and the first blade 61 and the second blade 62 are installed on the two sliding blocks, respectively, and an important innovation point of the present application is that the first blade 61 and the second blade 62 can be different types of blades, for example, the first blade 61 can be installed with a round knife type blade, and the second blade 62 can be installed with a sharp knife type blade, in actual use, the doctor can slide out the required blade according to different surgical needs, and the quick switching of multiple blades can be realized through the sliding block system without replacing the cutter, which avoids frequent replacement of tools during operation and significantly improves the efficiency of the operation.

[0045] The technical scheme effectively solves the problem of adapting different types of blades for the cutter through simple and ingenious design. It makes a cutter meet the needs of multiple operations, greatly improving the convenience and efficiency of arthroscopic surgery. In addition, this design is also beneficial to reduce the types of cutters that medical institutions need to reserve, and reduce costs. Specifically, the clamping groove on the sliding block 5 can have multiple implementation ways. For example, the clamping groove can be designed as a region with different widths and depths to adapt to blades of different thicknesses and shapes. The inner wall of the clamping groove can be designed with small protrusions or grooves to increase the friction between the blade and the clamping groove, and improve the fixing effect. In addition, the material of the clamping groove can be selected to have a certain elasticity, which can slightly deform when the blade is inserted, thereby achieving better fitting and fixing effect. The downward opening design of the clamping groove not only facilitates the fixation of the blade, but also prevents liquid or debris from entering the clamping groove during the operation process, keeping the clamping groove clean. This design, combined with the sliding function of the sliding block 5, allows the doctor to perform telescopic operation of the cutter while maintaining the stability of the blade. Further, the clamping groove can be designed with a quick locking mechanism. For example, a small spring lock can be provided on the edge of the clamping groove, which automatically locks the blade when it is inserted into place, further enhancing the fixing effect. This design not only ensures the stability of the blade, but also facilitates the quick replacement of the blade.

[0046] The technical solution of the present application realizes the adaptation of different types of blades by setting a clamping groove on the slider 5 and making the clamping groove opening downward. This design enables a single knife to meet various surgical needs, significantly improving surgical efficiency and flexibility. Specifically, doctors can quickly replace suitable blades according to different stages of surgery without replacing the entire knife. This not only saves surgery time, but also reduces the number of instrument replacements and reduces the risk of infection. In addition, the design of the clamping groove considers the stability and ease of operation of the blade. The downward opening design ensures that the blade does not loosen or fall off during use, and also facilitates the insertion and removal of the blade. This design, combined with the sliding function of the slider 5, allows doctors to achieve precise extension and retraction of the knife while maintaining the stability of the blade. Thus, the technical solution of the present application not only solves the problem of knife adaptation to different types of blades, but also improves the safety and accuracy of surgery. Doctors can focus more on the surgery itself rather than frequently changing tools or worrying about the stability of the blade. This design also helps reduce the types of knives that medical institutions need to stock, thereby reducing costs.

[0047] Compared with the prior art, the technical solution of the present application has significant advantages. Traditional arthroscopic knives usually can only use one type of blade, or require a complex replacement process. However, the design of the present application allows quick replacement of different types of blades on the same knife, greatly improving the flexibility and efficiency of surgery. In addition, the blade fixation method of traditional knives may have instability or complex operation problems, while the clamping groove design of the present application ensures the stability of the blade and achieves simple and quick replacement operation. This innovative design not only solves the problem of knife adaptability, but also makes significant progress in improving surgical efficiency and safety.

[0048] Further, in some preferred embodiments, the guide structure includes a guide needle channel 7 built into the slider 5 and a guide needle 11, which is provided in the guide needle channel 7, providing a guiding and positioning function. This design enables the guide needle 11 to remain stable during the use of the knife, while not affecting the sliding of the knife. The guide needle 11 provides a guiding and positioning function for the knife, enabling the knife to move accurately along a predetermined path.

[0049] Specifically, the guide needle 11 is preferably a Kirschner wire, which is a thin, long metal needle commonly used in orthopedic surgery, especially in fracture fixation and joint replacement surgery. Kirschner wire has a fixing effect, which can provide temporary or permanent fixation by passing through both ends of the fracture, helping the fracture to heal. The use of Kirschner wire is relatively simple, and it can be implanted through a small incision, reducing surgical trauma. Kirschner wire can be bent into different shapes as needed to adapt to different bone structures and fixation needs. Kirschner wire can be used as a temporary fixation device to provide support during the early stages of fracture healing, or as a permanent fixation device. Kirschner wire can be used in conjunction with other orthopedic devices such as external fixators, internal fixation plates, etc. to provide more stable fixation. In some cases, Kirschner wire is also used for diagnosis, such as in arthroscopic surgery, Kirschner wire can be used to guide and position, helping doctors accurately reach the surgical area.

[0050] Please refer to Figure 4 , Figure 4 is a side view of the knife with the guide needle 11 inserted into the guide needle channel 7. The guide needle channel 7 built into the slider 5 provides a fixed channel for the guide needle 11, which is inserted into the guide needle channel 7 and can slide up and down within the channel. This design achieves the integration of the guide needle 11 and the knife while maintaining their independent functions. When precise positioning is required during actual surgery, the guide needle 11 in the slider 5 can be pushed to slide the needle to the joint positioning location. After the guide needle 11 is fixed, the slider 5 is then pushed to make the blade installed on the slider 5 move along the guide needle 11 to the surgical location, achieving precise positioning. If it is necessary to replace the blade or adjust the cutting depth, the slider can be moved along the slide rail or different types of blades can be replaced.

[0051] Through this design, the knife of the present application can achieve precise positioning and sliding under the guidance of the guide needle 11. Compared with traditional arthroscopic knives, the scheme of the present application has the following advantages: first, the integrated design reduces the number of tool changes during surgery, improving surgical efficiency. Second, the guide function of the guide needle 11 significantly improves the accuracy of knife positioning and movement, reducing surgical errors. Third, the telescopic design and the adaptability of multiple blades increase the flexibility of the knife, enabling it to meet different surgical needs. Finally, this design simplifies the surgical operation process, reduces the difficulty of the doctor's operation, and helps to improve the safety of the surgery.

[0052] Specifically, the slider 5 is provided with a pressure knob 10 for controlling the up and down movement of the guide needle 11.

[0053] The technical solution of the present application provides a simple and effective method to control the up-and-down movement of the guide needle 11 by setting the pressing knob 10 on the slider 5. This design not only improves the accuracy of the operation, but also increases the flexibility of the tool use. At the same time, this design also facilitates the operator to quickly adjust the position of the guide needle 11 during the operation, improving the efficiency of the operation.

[0054] The design of the pressing knob 10 can have multiple implementations. For example, the material of the pressing knob 10 can be selected as wear-resistant and slip-resistant materials such as stainless steel or high-strength engineering plastics to ensure the stability and comfort of long-term use. The connection mechanism between the pressing knob 10 and the guide needle pipe 7 can also have multiple designs. For example, an elastic gasket can be set inside the pressing knob 10, which will generate uniform pressure on the guide needle 11 when the knob is tightened, thereby achieving the fixation of the guide needle 11. Another way is to design a conical structure at the bottom of the knob, which will squeeze the guide needle pipe 7 when tightened, thereby fixing the position of the guide needle 11.

[0055] This design forms a complete guide control system with other components such as the slider 5 and the guide needle pipe 7. The slider 5 provides the overall movement platform for the guide needle 11, the guide needle pipe 7 ensures the linear motion of the guide needle 11, and the pressing knob 10 realizes the precise control of the guide needle 11 in the vertical direction. This combination not only solves the control problem of the up-and-down movement of the guide needle 11, but also improves the flexibility and accuracy of the entire tool system. During use, the operator can adjust the position of the guide needle 11 by rotating the pressing knob 10 according to the needs of the operation to achieve precise positioning and guidance. For example, when it is necessary to penetrate into the joint cavity, the guide needle 11 can be moved downward by loosening the knob; when it is necessary to fix the guide needle 11, the knob can be tightened to fix the guide needle 11 at the desired position. This design enables the operator to quickly and accurately adjust the position of the guide needle 11 during the operation without interrupting the operation process or replacing the tool.

[0056] The technical solution of the present application effectively solves the up-down movement control problem of the guide needle 11 in the arthroscope cutter by setting the pressing knob 10 on the sliding block 5. This design makes the position adjustment of the guide needle 11 simple, fast and accurate. The operator can accurately control the up-down movement of the guide needle 11 according to the needs of the operation by rotating the pressing knob 10, so as to realize more accurate operation. The advantages of this design are: first, it simplifies the operation process of guide needle 11 control. The operator only needs to rotate the knob to realize the up-down movement and fixation of the guide needle 11, without the need to use additional tools or complex operation steps. Second, this design improves the accuracy of the operation. By fine-tuning the knob, the fine adjustment of the position of the guide needle 11 can be realized to meet the precise positioning needs of different operation stages. Third, it increases the flexibility of the cutter use. The operator can adjust the position of the guide needle 11 at any time during the operation to adapt to different operation situations without interrupting the operation process or replacing tools. Finally, this design improves the operation efficiency, and the quick and easy adjustment method reduces the downtime during the operation, making the entire operation process more smooth.

[0057] Further, the present application also proposes that the pressing knob 10 is connected with the sliding block 5 through threaded connection, and the fixation and release of the guide needle 11 are realized by rotating the pressing knob 10.

[0058] The pressing knob 10 and the sliding block 5 are connected through threaded connection, which allows the pressing knob 10 to move axially along the thread when rotating. When the pressing knob 10 is rotated, it will press or loosen the guide needle 11, thereby realizing the fixation or release of the guide needle 11. This design cleverly utilizes the characteristics of threaded connection, and through simple rotation operation, the fixation degree of the guide needle 11 can be accurately controlled. Compared with other fixation methods, threaded connection provides more precise adjustment capability, allowing doctors to easily adjust the fixation force of the guide needle 11 according to needs. At the same time, this mechanism is simple and reliable, and the operation is intuitive, which is conducive to quickly and accurately adjusting the position of the guide needle 11 during the operation. In this way, the technical solution effectively solves the problem of how to accurately fix and release the guide needle 11, and improves the accuracy and efficiency of the operation.

[0059] The threaded connection of the pressure knob 10 and the slider 5 can have various implementations. For example, the pressure knob 10 can be designed as an external thread structure, and an internal thread hole is provided at the corresponding position on the slider 5. Alternatively, the pressure knob 10 can be designed as an internal thread structure, and an external thread column is provided at the corresponding position on the slider 5. Both of these two ways can achieve the axial movement of the pressure knob 10, thereby controlling the fixation and release of the guide needle 11. Further, the type of thread can be selected according to different specifications as needed. For example, fine threads can be selected to provide more precise adjustment, or coarse threads can be selected to achieve rapid adjustment. The material of the thread can also be selected according to actual needs, such as medical-grade materials such as stainless steel and titanium alloy, to ensure reliability and biocompatibility for long-term use. The design of the pressure knob 10 can also consider ergonomic principles, such as using anti-slip patterns or raised structures to improve grip and control accuracy during operation. In addition, scales or markings can be added to the pressure knob 10 to help doctors more intuitively understand the current fixation level.

[0060] Specifically, when the position of the guide needle 11 needs to be adjusted, the doctor can first loosen the pressure knob 10 to allow the guide needle 11 to slide freely in the guide needle channel 7. After finding the appropriate position, the guide needle 11 is fixed by rotating the pressure knob 10. This design allows the doctor to quickly and accurately adjust the position of the guide needle 11 during surgery without the need to replace or reinsert the guide needle 11, thereby improving surgical efficiency and reducing trauma to the patient. Thus, the technical solution of the present application effectively solves the problem of accurate fixation and release of the guide needle 11 through a simple and ingenious design. Compared with traditional clamping or buckle type fixation methods, the threaded connection method provides more precise and controllable adjustment capability. This not only improves the accuracy of the operation, but also increases the flexibility of the operation. At the same time, due to the simple structure, the complexity and failure rate of the instrument are reduced, and the reliability is improved. This design is particularly suitable for use in arthroscopic surgery and other minimally invasive surgeries that require high-precision operations, which can help doctors better control the guide needle 11, thereby improving the success rate and safety of the surgery.

[0061] Further, in actual application, the hollow channel 2 is provided on both sides of the knife handle body 1, and the hollow channel 2 is connected with the knife handle cover 4, forming a closed space structure. This design can provide additional functions for the knife, such as negative pressure suction or catheter drainage. By integrating the hollow channel 2, the knife handle cover 4, the sliding blade, and the guide structure on the knife handle body 1, the present application realizes multifunctional integration, solving the problem of single structure and limited function of traditional arthroscopic knives. This design not only improves the efficiency of the knife, but also may reduce the frequency of tool replacement during surgery, thereby shortening the operation time and reducing the risk of infection.

[0062] In addition, the design of the hollow pipe 2 provides additional functional expansion possibilities for the knife, such as connecting a negative pressure device to achieve suction function, which further enhances the multifunctionality and practicality of the knife. Overall, through structural innovation and functional integration, the technical problems of single structure design and low functional integration of arthroscopic knives are effectively solved, providing more efficient and safe tool options for minimally invasive surgery. The hollow pipe 2 is provided on both sides of the knife handle main body 1, which can provide multiple function implementation methods. For example, the hollow pipe 2 can be used to connect a negative pressure device to achieve suction function during surgery. The hollow pipe 2 can also be used as a catheter channel for delivering drugs or saline. In addition, the hollow pipe 2 can also be used as a channel for optical fibers or cables to integrate lighting or electronic monitoring functions. The connection method of the knife handle cover 4 and the hollow pipe 2 can also have multiple options. Threaded connection can be used for easy disassembly and cleaning; buckle type connection can be used to improve operational convenience; sealing ring cooperation can be used to ensure the air tightness of the connection.

[0063] The combination of the hollow pipe 2 and the knife handle cover 4 not only provides additional functions for the knife, but also ensures the integrity and sealing of the overall structure of the knife. This multifunctional integration solves the problem of frequent replacement and single function of traditional arthroscopic knives, while improving surgical efficiency and reducing the risk of infection. The connection of the knife handle cover 4 and the hollow pipe 2 forms a closed space, which not only ensures the effect of negative pressure suction, but also provides good sealing for the knife. This design reduces the risk of contamination during surgery and improves the safety of the surgery. By integrating multiple functions into one knife, the present application not only simplifies the surgical process and reduces the number of instrument changes, but also reduces the surgery time, thereby reducing the trauma and infection risk of patients. This multifunctional integrated design concept provides a new direction for the development of arthroscopic surgical knives. In use, the doctor can control the extension and retraction of the blade by pushing the slider 5 to achieve precise positioning. At the same time, by connecting a negative pressure device, blood and debris can be removed in a timely manner during surgery to maintain a clear surgical field. This integrated design greatly improves the efficiency and safety of surgery. The closed space design of the present application is also superior to traditional open knives, improving the safety and cleanliness of the surgery. Overall, the technical solution of the present application has significantly improved in terms of functional integration, operational precision and safety, providing more efficient and safe tool options for arthroscopic surgery.

[0064] Further, the shank cover 4 is provided with a vent hole 8 for connecting a negative pressure device. This design allows the knife to be directly connected to a negative pressure device during surgery, achieving timely removal of blood and tissue debris, integrating suction function into the knife itself, eliminating the need for additional suction equipment, and simplifying the surgical operation process. Through the negative pressure effect, blood and debris in the surgical area can be effectively removed, maintaining a clear surgical field and improving the precision and safety of surgery. At the same time, this integrated design also reduces the number of instrument changes during surgery, improving surgical efficiency. In addition, the vent hole 8 is positioned on the shank cover 4, which does not affect the main function of the knife, ensuring the flexibility and versatility of the knife in use.

[0065] The vent hole 8 on the shank cover 4 can be designed in various ways. For example, a single large vent hole 8 can be provided, or multiple small vent holes 8 can be distributed at different positions on the shank cover 4. The shape of the vent hole 8 can be circular, oval, or other geometric shapes to accommodate different negative pressure requirements. The size and number of vent holes 8 can be adjusted according to surgical needs to ensure sufficient suction force. The connection method of the vent hole 8 and the negative pressure device can also have multiple options. A direct connection method can be used, i.e., a standard interface is provided on the vent hole 8, which is directly connected to the pipeline of the negative pressure device. An indirect connection method can also be used, which adds an intermediate connection device between the shank cover 4 and the negative pressure device to improve the flexibility and stability of the connection.

[0066] The technical solution of the present application has a synergistic effect with the hollow pipe 2 on both sides of the shank body 1. The hollow pipe 2 not only provides structural support for the knife, but also serves as a negative pressure channel, connecting the vent hole 8 with the hollow pipe 2. This design allows the negative pressure effect to extend to different parts of the knife, increasing the suction range and effect. In specific implementation, the vent hole 8 can be made of stainless steel to ensure durability and easy cleaning. The connection between the shank cover 4 and the hollow pipe 2 can be screw connection or buckle connection, which is convenient for disassembly and cleaning.

[0067] During the operation, the operator can activate the suction function by connecting a negative pressure device. When the negative pressure device is started, negative pressure is generated through the vent hole 8 on the shank cover 4, sucking blood and tissue fragments in the surgical area into the hollow pipe 2, and then discharging them through the negative pressure device, while adjusting the negative pressure intensity, the size of the suction force can be adjusted according to the bleeding situation of the surgical area. The advantage of this design is that it integrates the suction function into the knife itself, without the need for additional suction equipment. The operator can clear the blood and debris in the surgical area in real time while cutting or other operations, keeping the field of vision clear. This not only improves the accuracy and safety of the operation, but also significantly improves the efficiency of the operation. In addition, the position of the vent hole 8 is on the shank cover 4, which does not interfere with the main function of the knife, ensuring the flexibility of the knife in use. The operator can enable or disable the suction function at any time as needed without affecting other operations.

[0068] Compared with the prior art, the technical scheme of the present application has obvious advantages. Traditional arthroscopic surgery usually requires the use of a separate suction device to remove blood and tissue debris, which not only increases the number of equipment in the operating room, but also requires additional operation steps. The present application integrates the suction function into the knife itself, simplifying the surgical procedure, reducing the number of instrument changes, and improving the efficiency of the operation. In addition, in the traditional method, the suction device usually needs to be controlled by additional operators, while the design of the present application allows the lead surgeon to directly control the suction function, improving the coordination and accuracy of the operation. This integrated design also reduces the degree of congestion in the surgical area, providing the doctor with a clearer operating space. In summary, the present application solves the technical problem of removing blood and tissue debris in arthroscopic surgery through the innovative design of setting a vent hole 8 on the shank cover 4 and connecting a negative pressure device, effectively improving the efficiency and safety of the operation, and has significant clinical application value.

[0069] Further, in some preferred embodiments, the hollow pipe 2 is in communication with the negative pressure device, so that the hollow pipe 2 maintains a negative pressure state.

[0070] By connecting the hollow pipe 2 with the negative pressure device, a continuous negative pressure state of the hollow pipe is achieved. This design allows the arthroscopic knife to continuously remove blood and tissue debris during the operation, keeping the surgical field clear. By integrating the suction function, the need for additional equipment is reduced, simplifying the surgical operation process and improving the efficiency and safety of the operation. In addition, the continuous negative pressure state also allows the hollow pipe 2 to respond quickly when the suction function is turned on, ensuring good suction effect.

[0071] The design of the hollow conduit in the present application can have multiple variations. The inner wall of the conduit can be treated with a special coating to reduce the adhesion of blood and tissue fragments, facilitating cleaning and maintenance. The choice of negative pressure generator is also crucial. A medical-grade negative pressure pump can be selected, which can provide stable and adjustable negative pressure. The size of the negative pressure can be adjusted according to the needs of the operation, and a filtration system can be equipped to prevent the backflow of contaminants. The technical solution of the present application forms a good cooperation with the aforementioned slider 5 and guide needle 11. When using the guide needle 11 for precise positioning and operation, the negative pressure suction function of the hollow conduit 2 can timely remove blood and fragments in the operation area, maintain a clear vision, and improve the operation precision. At the same time, the presence of the negative pressure suction system will not affect the operation of the slider 5 and the guide needle 11, and both can work independently and cooperate with each other.

[0072] The technical solution of the present application has significant advantages compared to the prior art. Traditional arthroscopic surgery usually requires a separate suction device, increasing the number of instruments in the operation area, which can easily cause operational interference. The present application integrates the suction function into the knife itself, not only simplifying the operation, but also improving the precision of suction. In addition, the continuous negative pressure state can more effectively remove the effusion and fragments in the operation area, compared to intermittent suction, it can better maintain the clarity of the operation field, reduce the number of operation interruptions, and improve the operation efficiency. At the same time, the design of the present application also considers the compatibility with other functions (such as guide needle 11), realizing the organic combination of multiple functions, which is relatively rare in existing arthroscopic knives.

[0073] Further, in some preferred embodiments, the surface of the knife handle body 1 is provided with a closed switch 9 for controlling the suction function of the hollow conduit 2.

[0074] The technical feature of setting the closed switch 9 on the surface of the knife handle body 1 plays a key role in solving the problem of controlling the suction function of the hollow conduit 2. The closed switch 9 as a control device can flexibly adjust the suction state of the hollow conduit 2 according to the needs of the operation. This design allows the doctor to easily turn on or off the suction function during the operation without additional operation steps or equipment. By setting the closed switch 9 on the surface of the knife handle body 1, direct control of the suction function of the hollow conduit 2 is achieved. This design takes into account the convenience and efficiency of the operation, allowing the doctor to easily adjust the suction state while maintaining the operation posture. The closed switch is set in a position that is convenient to operate, and can quickly respond to different needs in the operation process, such as removing blood or tissue fragments, or temporarily stopping suction for delicate operations.

[0075] This technical feature, combined with the overall design of the tool, further enhances the versatility and flexibility of the instrument. It not only solves the problem of controlling the suction function, but also improves the overall efficiency and accuracy of the surgery. Through simple switch operation, the doctor can immediately start or stop suction when needed, reducing the number of interruptions and tool switching during surgery, thereby shortening the surgery time and reducing the risk of infection. The closed switch 9 can be designed in various ways to control the suction function of the hollow pipe 2. For example, it can be designed as a sliding switch, a rotary switch, or a press switch, etc. Among them, the sliding switch can be designed by setting a small slider on the surface of the tool handle main body, and the doctor can easily push the slider with the thumb to turn on or off the suction function. The rotary switch can be designed as a small knob, which can control the suction state by rotating clockwise or counterclockwise. The press switch can be designed as a flexible button, which can switch the suction function on and off by pressing or releasing. The position design of the closed switch 9 is also a key consideration. In order to ensure the convenience of operation, the switch can be set in the middle or side of the tool handle main body 1, so that the doctor can easily operate it with the thumb or index finger when holding the tool. In addition, the size and touch of the switch also need to be carefully designed to ensure accurate operation even when wearing surgical gloves.

[0076] In order to further improve the accuracy and safety of operation, the closed switch 9 can be designed as a mechanism with locking function. For example, a locking ring can be set around the switch, which can be rotated to fix the switch position when the doctor needs to maintain a certain suction state for a long time, preventing accidental touch from causing suction state change. In actual application, the control of the closed switch 9 can be associated with the negative pressure state of the hollow pipe 2. When the switch is in the open state, the hollow pipe 2 realizes continuous suction function with the negative pressure device. When the switch is closed, the hollow pipe 2 is isolated from the outside world and stops suction, but is always connected with the negative pressure device to ensure effective suction effect. This design enables the doctor to flexibly adjust the suction intensity and duration according to the different stages and needs of the surgery. The design of the closed switch 9 can also consider the convenience of cleaning and maintenance. For example, it can be designed to be detachable, so that the switch parts can be easily detached for cleaning and disinfection. At the same time, the material selection of the switch also needs to consider factors such as corrosion resistance and high temperature resistance, to ensure that it can maintain good function after multiple uses and disinfections.

[0077] By setting the closed switch 9, the tool of the present application realizes more flexible and accurate operation during the operation. The doctor can adjust the suction function at any time according to the specific situation of the operation site and the different stages of the operation process. For example, when cleaning the joint cavity, the suction function can be turned on to quickly remove the effusion and debris in the operation area and maintain a clear view. When performing delicate operations such as suturing or tissue repair, the suction function can be temporarily turned off to avoid unnecessary interference with the surrounding tissues. This flexible control method not only improves the efficiency of the operation, but also enhances the safety of the operation. The doctor can focus more on the operation itself without the need to frequently change tools or adjust external equipment. At the same time, since the suction state can be adjusted in time, the risk of tissue damage caused by continuous suction is also reduced.

[0078] Compared with the prior art, the present application controls the suction function of the hollow pipeline 2 by setting the closed switch 9 on the surface of the shank body 1, significantly improving the convenience and flexibility of the operation. Traditional arthroscopic surgical knives usually need to rely on external equipment to control the suction function, which is cumbersome and slow in response. The design of the present application integrates the control of the suction function directly on the tool, allowing the doctor to quickly and accurately adjust the suction state while maintaining the operation posture. This not only simplifies the operation process, but also improves the efficiency and safety of the operation. In addition, the design of the present application also considers the convenience of cleaning and maintenance, so that the tool can maintain good function after multiple uses, which is of great significance in clinical application.

[0079] In summary, the present application is composed of shank body 1, shank cover 4, slider 5, pressure knob 10 and closed switch 9, etc. The shank body 1 has two hollow pipelines 2 on both sides, and double-sided sliding rails 3. The shank cover 4 is connected to the two hollow pipelines 2 and converges at the air hole 8. The first slider 51 and the second slider 52 are provided with clamping grooves, which can be used with different types of surgical blades. The slider 5 is internally provided with a hollow needle guide pipeline 7. The pressure knob 10 provided on the slider 5 can be rotated to fix the guide needle 11. The shank body 1 is also provided with a closed switch 9, which is designed as a half-open half-closed design. By rotating, the closed switch 9 realizes the closed and air-through functions of the hollow pipeline 2.

[0080] The working process of the present application is as follows: Before use, the operator selects the first blade 61 and the second blade 62 required for arthroscopic surgery on the first slider 51 and the second slider 52 respectively; by pushing the slider 5, the tool can be extended or retracted, realizing the function of selecting the required tool without changing the blade during the operation. The negative pressure device is connected to the air hole 8 of the shank cover 4 to achieve the purpose of removing blood during the operation. During the operation, the guide needle 11 can be fixed by pushing the pressure knob 10 on the slider 5 after positioning. The operator can select whether to turn on or turn off the suction through the closed switch 9 during the operation.

[0081] The application has a multifunctional integrated design, and the quick switching of various blades (round knives and sharp knives) is realized through a slider system, so as to avoid frequent replacement of tools during surgery, significantly improve the surgical efficiency, realize the telescopic knife, accurate operation, under the guidance of the guide pin 11, the knife can be accurately telescoped to the joint positioning position, which is convenient for complex operation, effectively reduces the misoperation, and further improves the accuracy and safety of the surgery. The knife handle cover 4 is provided with a ventilation hole 8, which can be connected with a negative pressure device to realize the timely removal of blood and tissue fragments during surgery, ensure the clear surgical field, reduce the use of additional equipment, simplify the operation process, and at the same time, the stability and convenience are combined, the guide pin 11 is fixed through the pressurizing knob 10, so as to ensure that the tool in the guide pin 11 is stable and does not slip during the surgery, and the operation flexibility and stability are improved. The knife handle body 1, the slider 5 and the closed switch 9 adopt a modular design, which is convenient for cleaning and maintenance, and combined with the ergonomic characteristics, the operation is more comfortable and efficient. The telescopic guide pin integrated arthroscopic knife of the application integrates the guide pin guidance, blade telescopic switching and suction device, fills the technical gap in the field of arthroscopic surgical instruments, and has high clinical promotion value and market prospect.

[0082] The above only describes the embodiments of the application and is not used to limit the protection scope of the application. For those skilled in the art, the application can have various changes and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A telescopic integrated arthroscopic knife tool comprising a shank body (1) provided with a slidingly arranged blade, characterized in that, Also include: The guide structure is arranged on the shank body (1) and / or the blade, which is used for guiding the blade to move on the shank body (1).

2. An integrated arthroscopic knife with retractable guide according to claim 1, wherein, The shank body (1) is provided with a sliding rail (3) on both sides, and a sliding block (5) is arranged on the sliding rail (3).

3. An integrated arthroscopic knife with retractable guide according to claim 2, wherein, The sliding block (5) is provided with a clamping groove for installing the blade, and the opening of the clamping groove is downward, which is suitable for different types of blades.

4. An integrated arthroscopic knife with retractable guide according to claim 3, wherein, The guide structure includes a guide needle pipe (7) and a guide needle (11) built-in the sliding block (5), the guide needle (11) is arranged in the guide needle pipe (7), and the guide needle (11) provides the guiding and positioning function.

5. An integrated arthroscopic knife with retractable guide according to claim 4, wherein, The sliding block (5) is provided with a pressing knob (10) for controlling the up and down movement of the guide needle (11).

6. An integrated arthroscopic knife with retractable guide according to claim 5, wherein, The pressing knob (10) is connected with the sliding block (5) through thread connection, and the fixing and releasing of the guide needle (11) are realized by rotating the pressing knob (10).

7. The telescopic integrated arthroscopic knife of claim 1, wherein, The shank body (1) is provided with a hollow pipe (2) on both sides, and a shank cover (4) is further included, and the shank cover (4) is connected with the hollow pipe (2).

8. An integrated arthroscopic knife with retractable guide according to claim 7, wherein, The shank cover (4) is provided with a vent hole (8) for connecting a negative pressure device.

9. An integrated arthroscopic knife with retractable guide according to claim 8, wherein, The hollow pipe (2) is communicated with the negative pressure device, so that the hollow pipe (2) maintains a negative pressure state.

10. The telescopic integrated arthroscopic knife of claim 9, wherein, The shank body (1) is provided with a closed switch (9) for controlling the suction function of the hollow pipe (2).

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