Multifunctional laryngeal knife for otolaryngology department

Abstract

The invention relates to the technical field of ear-nose-throat knives, in particular to a multifunctional throat knife for the ear-nose-throat department. According to the technical scheme, the scalpel comprises a scalpel body and further comprises a grip, the grip is fixedly installed at one end of the scalpel body, an installation head is fixedly installed at the other end of the grip, a cutting knife, an adsorption head, a hemostasis knife and a cleaning knife are installed on the installation head in a sliding mode, and a guide mechanism for stretching and retracting the cutting knife, the adsorption head, the hemostasis knife and the cleaning knife is arranged on the grip. By means of the technical scheme of an integrated structure, a tool-free rapid switching mechanism and a function cooperation system, the three technical pain points that an existing laryngeal knife is single in function, tedious in switching and inharmonious in operation are solved, the operation time is shortened, the infection risk is reduced, and the operation precision is improved.

Description

Technical Field

[0001] This invention relates to the field of otolaryngology knife technology, and more particularly to a multifunctional laryngology knife for otolaryngology. Background Technology

[0002] In otolaryngology clinical practice, laryngeal surgeries (such as vocal cord polyp removal, laryngeal lesion biopsy, and epiglottic cyst ablation) require extremely high precision, versatility, and ease of operation of instruments. The larynx has a narrow physiological structure and fragile tissues, and traditional surgical instruments have many technical limitations, making it difficult to meet the needs of efficient and safe clinical procedures.

[0003] Currently, most laryngeal knives used in clinical practice are single-function structures, such as scalpels with only cutting capabilities, negative pressure suction heads with only suction capabilities, and electrocoagulation knives with only hemostasis capabilities. In a complete laryngeal surgery, surgeons need to frequently change instruments with different functions, which not only prolongs the operation time and increases the risk of exposing the patient's laryngeal tissue, but also increases the cost of repeated instrument sterilization during surgery. Furthermore, the instrument changing process can easily disrupt the sterile environment of the surgical area, leading to postoperative infection. To address the drawbacks of single-function instruments, some improved multi-functional laryngeal knives have emerged, but they still have significant shortcomings. One type of improvement uses a tool-assisted blade-changing design, requiring external tools such as screwdrivers to disassemble the instrument and complete the blade switching. This process is cumbersome, taking 1-2 minutes during surgery, severely impacting surgical efficiency. Moreover, repeated disassembly can cause wear and tear on the instrument interface, leading to loose blade connections and the safety hazard of detachment during surgery. Another type of improvement scheme achieves tool-free replacement, but most of them are simple snap-on connections, lacking a stable locking structure. During the operation, the blade head is prone to accidental switching due to hand tremors or tissue traction. At the same time, each functional blade head works independently, and the doctor must manually complete the cutting, suction, and cleaning operations step by step, resulting in poor coordination. Blood and tissue debris in the surgical area can easily obstruct the field of vision and reduce the accuracy of operation. Therefore, this application proposes a multifunctional laryngeal knife for otolaryngology. Summary of the Invention

[0004] The purpose of this invention is to address the problems of cumbersome blade replacement and poor coordination in the prior art, and to propose a multifunctional laryngeal knife for otolaryngology.

[0005] The technical solution of the present invention: a multifunctional laryngeal knife for otolaryngology, including a blade and a handle, wherein the handle is fixedly installed at one end of the blade and an installation head is fixedly installed at the other end of the handle, wherein a cutting blade, an adsorption head, a hemostatic blade and a cleaning blade are slidably installed on the installation head, and the handle is provided with a guide mechanism for extending and retracting the cutting blade, the adsorption head, the hemostatic blade and the cleaning blade.

[0006] Optionally, the guiding mechanism includes a fixed plate fixedly installed inside the mounting head, a connecting rod slidably installed on the fixed plate, one end of the connecting rod being fixedly connected to a cutting blade, an adsorption head, a hemostatic blade, and a cleaning blade respectively, a stop block being fixedly installed on the connecting rod, a guide block being fixedly installed at one end of the stop block, the guide block having cut surfaces on both sides, a mounting plate rotatably installed inside the mounting head, a squeezing block being fixedly installed on one side of the mounting plate, the squeezing block having cut surfaces on both sides, the cut surfaces of the squeezing block contacting the cut surfaces of the guide block, and a limiting mechanism for limiting the mounting plate being positioned inside the handle.

[0007] Optionally, the limiting mechanism includes a mounting frame rotatably mounted inside the handle, with sliders symmetrically slidably mounted on the mounting frame. A guide rod is hinged to the top of the slider. A connecting block is slidably mounted inside the handle, with its bottom sides hinged to the guide rod. A limiting post is fixedly mounted at one end of the slider. Four limiting grooves are provided on the inner wall of the handle, each corresponding to the position of the cutting blade, suction head, hemostatic blade, and cleaning blade, respectively. The interval between each limiting groove is °. The limiting post is located within the limiting groove. A connecting shaft is fixedly mounted at the bottom of the mounting frame, with one end of the connecting shaft fixedly connected to the mounting plate.

[0008] Optionally, a guide tube is fixedly installed on one side of the handle, one end of the guide tube is connected to the adsorption head, and a collection groove is fixedly installed on the other end of the guide tube. A sealing block is slidably installed in the collection groove, and a miniature negative pressure machine is fixedly installed on one end of the collection groove.

[0009] Optionally, a connecting tube is fixedly installed on one side of the handle, one end of the connecting tube is connected to the cleaning knife, and a liquid storage bladder is fixedly installed on the other end of the connecting tube, with a water stop valve installed inside the liquid storage bladder.

[0010] Optionally, a connecting post is slidably installed inside the grip, a pull block is fixedly installed at one end of the connecting post, the pull block is provided with anti-slip texture, and the other end of the connecting post is fixedly connected to the connecting block.

[0011] Optionally, a camera is fixedly mounted on one end of the mounting head, and multiple LED lights arranged at equal intervals are fixedly mounted around the camera.

[0012] Optionally, a first spring is fixedly installed between the stop block and the fixing plate, and one end of the first spring is fixedly connected to the stop block.

[0013] Optionally, a second spring is fixedly installed inside the mounting frame, and the two ends of the second spring are respectively fixedly connected to the slider.

[0014] Optionally, the mounting head has four mounting slots, and the cutting blade, suction head, hemostatic blade, and cleaning blade are located in the mounting slots.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: This invention utilizes a cutting blade, suction head, hemostatic blade, and cleaning blade mounted on the mounting head. A rotating mounting plate causes a pressing block on the mounting plate to press against a guide block, which in turn moves the guide block onto the pressing block. The guide block then moves the corresponding blade outward, completing the blade switching process. This eliminates the need to replace the entire instrument, allowing for the completion of the entire "cutting-sampling-hemostasis-cleaning" process in laryngeal surgery. It directly addresses the industry pain point of "frequent instrument changes."

[0016] Furthermore, by pulling the pull block upwards, the guide rod is moved, which in turn causes the sliders to move closer to each other, so that the limiting post at one end of the slider is pulled out of the limiting groove, thus removing the fixation to the mounting frame. At this time, the pull plate is rotated, which drives the mounting frame to rotate, moving the limiting post into another limiting groove, completing the switching of the blade head, improving the stability after switching, and significantly shortening the operation time.

[0017] Furthermore, by linking the adsorption head with a miniature negative pressure machine and collection tank, the "cutting-sampling-storage" process is integrated, avoiding contamination during sample transfer. The cleaning blade is linked with the reservoir and connecting tube, allowing for precise rinsing of the cutting / hemostasis site without the need for additional handheld rinsing instruments. The mounting head integrates a camera and LED light, solving the problems of dim vision and blind operation in laryngeal surgery, forming a closed-loop collaboration of "observation-operation-cleaning" with the blade head function.

[0018] This invention achieves a technical solution of "integrated structure + tool-free rapid switching mechanism + functional coordination system", which solves the three major technical pain points of existing laryngeal knives: "single function, cumbersome switching, and uncoordinated operation", shortens operation time, reduces infection risk, and improves operation accuracy. Attached Figure Description

[0019] Figure 1 A schematic diagram of a multifunctional laryngeal knife for use in otolaryngology. Figure 1 ; Figure 2 A schematic diagram of a multifunctional laryngeal knife for use in otolaryngology. Figure 2 ; Figure 3 A schematic diagram of a multifunctional laryngeal knife for use in otolaryngology. Figure 3 ; Figure 4 This is a schematic diagram of the internal structure of the mounting head; Figure 5 for Figure 1 A magnified schematic diagram of the partial structure at point A in the middle; Figure 6 for Figure 3 A magnified view of the structure at point B in the middle; Figure 7 for Figure 2 A magnified schematic diagram of the structure at point C.

[0020] Reference numerals: 1. Blade; 2. Handle; 3. Mounting head; 4. Cutting blade; 5. Suction head; 6. Hemostatic blade; 7. Cleaning blade; 8. Camera; 9. LED light; 10. Connecting tube; 11. Guide tube; 12. Connecting rod; 13. First spring; 14. Stop block; 15. Guide block; 16. Mounting plate; 17. Squeezing block; 18. Connecting shaft; 19. Mounting frame; 20. Second spring; 21. Limiting groove; 22. Fixing plate; 23. Slider; 24. Guide rod; 25. Connecting block; 26. Connecting post; 27. Limiting post; 28. Collection tank; 29. ​​Sealing block; 30. Liquid reservoir; 31. Miniature negative pressure machine; 32. Pull block. Detailed Implementation

[0021] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0023] 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.

[0024] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] Example 1 like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the present invention proposes a multifunctional laryngeal knife for otolaryngology, including a blade 1 and a handle 2. The handle 2 is fixedly installed at one end of the blade 1, and an installation head 3 is fixedly installed at the other end of the handle 2. A cutting blade 4, an adsorption head 5, a hemostatic blade 6, and a cleaning blade 7 are slidably installed on the installation head 3. The cutting blade 4 is used to cut body tissue, the adsorption head 5 is used to extract and sample the cut tissue, the hemostatic blade 6 is used to stop bleeding at the cut site, and the cleaning blade 7 is used to rinse the cut site. The cleaning handle 2 is provided with a guide mechanism for extending and retracting the cutting blade 4, the adsorption head 5, the hemostatic blade 6, and the cleaning blade 7.

[0028] like Figure 4-5As shown, the guiding mechanism includes a fixed plate 22 fixedly installed inside the mounting head 3. A connecting rod 12 is slidably installed on the fixed plate 22. One end of the connecting rod 12 is fixedly connected to the cutting blade 4, the suction head 5, the hemostatic blade 6, and the cleaning blade 7, respectively. A stop block 14 is fixedly installed on the connecting rod 12. A guide block 15 is fixedly installed on one end of the stop block 14. Both sides of the guide block 15 are cut surfaces. An mounting plate 16 is rotatably installed inside the mounting head 3. A pressing block 17 is fixedly installed on one side of the mounting plate 16. Both sides of the pressing block 17 are cut surfaces. The cut surfaces of the pressing block 17 contact the cut surfaces of the guide block 15. When the cutting blade 4 needs to be used, the mounting plate 16 is rotated. The pressing block 17 at the bottom of the mounting plate 16 presses against the guide block 15. As the mounting plate 16 rotates, the cut surfaces of the pressing block 17 continuously press against the guide block 15, causing the guide block 15 to move horizontally to the top of the pressing block 17. The cutting blade 4 is moved out of the mounting head 3 by the block 15 to facilitate its use. The same principle applies when using the suction head 5, hemostatic blade 6, and cleaning blade 7. Simply move the squeezing block 17 to the bottom of the corresponding guide block 15. When switching between different blades, the first spring 13 rebounds, causing the guide block 15 to reset, so that when switching blades, other blades can retract into the mounting head 3. The four functional components of the cutting blade 4, suction head 5, hemostatic blade 6, and cleaning blade 7 are integrated into the same mounting head 3. The entire process of "cutting-sampling-hemostasis-cleaning" in laryngeal surgery can be completed without changing the entire instrument, directly solving the industry pain point of "frequent changing of multiple instruments". The blade is normally stored in the mounting slot and only extends when working, avoiding the risk of mucosal scratches caused by blade exposure in traditional multi-instrument operations, and improving intraoperative safety. The handle 2 is equipped with a limiting mechanism to limit the mounting plate 16.

[0029] Example 2 like Figure 3-6As shown, the limiting mechanism includes a mounting frame 19 rotatably installed inside the handle 2. A slider 23 is symmetrically slidably mounted on the mounting frame 19. A guide rod 24 is hinged to the top of the slider 23. A connecting block 25 is slidably installed inside the handle 2. The bottom sides of the connecting block 25 are hinged to the guide rod 24. A limiting post 27 is fixedly installed at one end of the slider 23. Four limiting grooves 21 are formed on the inner wall of the handle 2. Each limiting groove 21 corresponds to the position of the cutting blade 4, the suction head 5, the hemostatic blade 6, and the cleaning blade 7, respectively. The interval between each limiting groove 21 is 60°. The limiting post 27 is located within the limiting groove 21. A connecting shaft 18 is fixedly installed at the bottom of the mounting frame 19. One end of the connecting shaft 18 is fixedly connected to the mounting plate 16. A connecting post 26 is slidably installed inside the handle 2. A pull block 32 is fixedly installed at one end of the connecting post 26. The pull block 32 is provided with anti-slip texture. The other end of the connecting post 26 is fixedly connected to the connecting block 25. A second spring 20 is fixedly installed inside the mounting frame 19. Both ends of the second spring 20 are fixedly connected to the slider 23. When it is necessary to switch the cutter head, pull the pull block 32 upward. The pull block 32 drives the connecting block 25 to move upward. The connecting block 25 drives the guide rod 24 to pull upward. Rod 24 drives sliders 23 to move closer together. The limiting post 27 at one end of slider 23 is pulled out of the limiting groove 21, releasing the limiting effect on the mounting frame 19. At this point, rotating pull block 32 causes the mounting frame 19 to rotate. The mounting frame 19 then rotates the bottom connecting shaft 18, which in turn rotates the mounting plate 16, thus completing the switching of the cutting head. After the switching is complete, the second spring 20 rebounds, causing sliders 23 to move towards both ends of the mounting frame 19. Slider 23 drives the limiting post 27 to insert into the limiting groove 21, completing the fixation of the mounting frame 19 and improving stability after cutting head switching, preventing installation... When plate 16 rotates, it affects the retraction of the blade head. Through the inclined surface cooperation of "squeezing block 17-guide block 15" + spring reset structure, combined with the locking mechanism of "limiting post 27-limiting groove 21", the rotational switching of the blade head and automatic extension / retraction are realized. The entire switching process does not require any tools, and it automatically locks after switching to prevent loosening, avoiding accidental switching of the blade head due to hand tremors during operation. This solves the technical problem of "not locking firmly" in traditional switching mechanisms. When not in use, simply rotate the squeezing block 17 on the mounting plate 16 until it does not contact the guide block 15. At this time, each blade head is in the retracted state.

[0030] Example 3 like Figure 1 , Figure 2 and Figure 7As shown, a guide tube 11 is fixedly installed on one side of the handle 2. One end of the guide tube 11 is connected to the adsorption head 5, and the other end of the guide tube 11 is fixedly installed with a collection tank 28. A sealing block 29 is slidably installed in the collection tank 28. A miniature negative pressure machine 31 is fixedly installed on one end of the collection tank 28. When it is necessary to sample the cut tissue, the miniature negative pressure machine 31 is activated to extract the gas in the guide tube 11. At this time, the adsorption head 5 is switched, and the cut tissue is sucked in from the adsorption head 5 and then transported by the guide tube 11 to the sealing block 29 in the collection tank 28. The sampled tissue can be taken out by pulling out the sealing block 29. A connecting tube 10 is fixedly installed on one side of the handle 2. One end of the connecting tube 10 is connected to the cleaning knife 7, and the other end of the connecting tube 10 is fixedly installed with a liquid reservoir 30. A water stop valve is provided in the liquid reservoir 30. When it is necessary to clean the cut area, the water stop valve is opened. The valve is slowly pressed to squeeze the internal cleaning fluid into the connecting tube 10, and then the fluid is delivered to the head of the cleaning knife 7 through the connecting tube 10. The fluid is then sprayed out through the holes on the head to clean the cutting area. This allows for precise rinsing of the cutting / hemostatic area without the need for additional handheld rinsing instruments. A camera 8 is fixedly installed at one end of the mounting head 3 for observing internal tissues, facilitating operation. Multiple LED lights 9 are fixedly installed around the camera 8 at equal intervals to improve brightness and solve the problems of dim vision and blind operation in laryngeal surgery. This forms a closed-loop synergy of "observation-operation-cleaning" with the knife head function. A first spring 13 is fixedly installed between the stop block 14 and the fixing plate 22. One end of the first spring 13 is fixedly connected to the stop block 14. Four mounting slots are opened on the mounting head 3, and the cutting knife 4, suction head 5, hemostatic knife 6 and cleaning knife 7 are located in the mounting slots.

[0031] Working principle: When it is necessary to switch the cutter head, pull the pull block 32 upward. The pull block 32 drives the connecting block 25 to move upward. The connecting block 25 drives the guide rod 24 to pull upward. The guide rod 24 drives the slider 23 to move closer together. The limiting post 27 at one end of the slider 23 is pulled out of the limiting groove 21, canceling the limitation on the mounting frame 19. At this time, rotate the pull block 32. The pull block 32 drives the mounting frame 19 to rotate. The mounting frame 19 drives the bottom connecting shaft 18 to rotate. The connecting shaft 18 drives the mounting plate 16 to rotate, thus completing the switch of the cutter head. After the switch is completed, the second spring 20 rebounds and drives the slider 23 to move to both ends of the mounting frame 19. The slider 23 drives the limiting post 27 to insert into the limiting groove 21, completing the fixation of the mounting frame 19, improving the stability after the cutter head is switched, and preventing the mounting plate 16 from rotating and affecting the retraction of the cutter head. Rotate the mounting plate 16. The pressing block 17 at the bottom of the mounting plate 16 presses the guide block 15. As the mounting plate 16 rotates, the pressing block 17 presses the guide block 15. The cut surface of the pressure block 17 continuously presses against the guide block 15, causing the guide block 15 to move horizontally and move to the top of the pressure block 17. The guide block 15 then moves the cutting blade 4 out of the mounting head 3 for use. The principle is the same when using the suction head 5, hemostatic blade 6, and cleaning blade 7; simply move the pressure block 17 to the bottom of the corresponding guide block 15. When switching between different blades, the first spring 13 rebounds, causing the guide block 15 to reset, so that when switching blades, other blades can retract into the mounting head 3. When not in use, the pressure block 17 on the mounting plate 16 can be rotated so that it does not contact the guide block 15. At this time, each blade is in a retracted state. This achieves a technical solution of "integrated structure + tool-free rapid switching mechanism + functional coordination system," which solves the three major technical pain points of existing laryngeal knives: "single function, cumbersome switching, and uncoordinated operation," shortening operation time, reducing infection risk, and improving operational accuracy.

[0032] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A multifunctional laryngeal knife for otolaryngology, comprising a blade (1), characterized in that, It also includes a handle (2), which is fixedly installed at one end of the blade (1), and a mounting head (3) is fixedly installed at the other end of the handle (2). A cutting blade (4), an adsorption head (5), a hemostatic blade (6) and a cleaning blade (7) are slidably installed on the mounting head (3). A guide mechanism for extending and retracting the cutting blade (4), the adsorption head (5), the hemostatic blade (6) and the cleaning blade (7) is provided on the handle (2).

2. The multifunctional laryngeal knife for otolaryngology according to claim 1, characterized in that, The guiding mechanism includes a fixed plate (22) fixedly installed inside the mounting head (3). A connecting rod (12) is slidably installed on the fixed plate (22). One end of the connecting rod (12) is fixedly connected to the cutting knife (4), the suction head (5), the hemostatic knife (6), and the cleaning knife (7), respectively. A stop block (14) is fixedly installed on the connecting rod (12). A guide block (15) is fixedly installed on one end of the stop block (14). Both sides of the guide block (15) are cut surfaces. An mounting plate (16) is rotatably installed inside the mounting head (3). A squeezing block (17) is fixedly installed on one side of the mounting plate (16). Both sides of the squeezing block (17) are cut surfaces. The cut surfaces of the squeezing block (17) are in contact with the cut surfaces of the guide block (15). A limiting mechanism for limiting the mounting plate (16) is provided inside the handle (2).

3. The multifunctional laryngeal knife for otolaryngology according to claim 2, characterized in that, The limiting mechanism includes a mounting frame (19) rotatably mounted inside the handle (2), a slider (23) symmetrically slidably mounted on the mounting frame (19), a guide rod (24) hinged to the top of the slider (23), a connecting block (25) slidably mounted inside the handle (2), the bottom sides of the connecting block (25) hinged to the guide rod (24), a limiting post (27) fixedly mounted at one end of the slider (23), four limiting grooves (21) are provided on the inner wall of the handle (2), each limiting groove (21) corresponds to the position of the cutting knife (4), the suction head (5), the hemostatic knife (6) and the cleaning knife (7), and the interval between each limiting groove (21) is 60°. The limiting post (27) is located inside the limiting groove (21), and a connecting shaft (18) is fixedly mounted at the bottom of the mounting frame (19), one end of the connecting shaft (18) is fixedly connected to the mounting plate (16).

4. A multifunctional laryngeal knife for otolaryngology according to claim 1, characterized in that, A guide tube (11) is fixedly installed on one side of the handle (2). One end of the guide tube (11) is connected to the adsorption head (5). A collection groove (28) is fixedly installed on the other end of the guide tube (11). A sealing block (29) is slidably installed in the collection groove (28). A micro negative pressure machine (31) is fixedly installed on one end of the collection groove (28).

5. A multifunctional laryngeal knife for otolaryngology according to claim 1, characterized in that, A connecting tube (10) is fixedly installed on one side of the handle (2). One end of the connecting tube (10) is connected to the cleaning knife (7). A liquid storage bladder (30) is fixedly installed on the other end of the connecting tube (10). A water stop valve is provided inside the liquid storage bladder (30).

6. A multifunctional laryngeal knife for otolaryngology according to claim 3, characterized in that, A connecting post (26) is slidably installed inside the grip (2). A pull block (32) is fixedly installed at one end of the connecting post (26). The pull block (32) is provided with anti-slip texture. The other end of the connecting post (26) is fixedly connected to the connecting block (25).

7. A multifunctional laryngeal knife for otolaryngology according to claim 1, characterized in that, A camera (8) is fixedly installed at one end of the mounting head (3), and multiple LED lights (9) arranged at equal intervals are fixedly installed around the camera (8).

8. A multifunctional laryngeal knife for otolaryngology according to claim 2, characterized in that, A first spring (13) is fixedly installed between the stop block (14) and the fixing plate (22), and one end of the first spring (13) is fixedly connected to the stop block (14).

9. A multifunctional laryngeal knife for otolaryngology according to claim 3, characterized in that, A second spring (20) is fixedly installed inside the mounting frame (19), and the two ends of the second spring (20) are fixedly connected to the slider (23).

10. A multifunctional laryngeal knife for otolaryngology according to claim 1, characterized in that, The mounting head (3) has four mounting slots, and the cutting blade (4), suction head (5), hemostatic blade (6) and cleaning blade (7) are located in the mounting slots.

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