Soft and hard composite anti-bite dental pad for electrophysiology monitoring in perioperative period of neurosurgery

Abstract

The invention is applied to the technical field of medical instruments, and particularly discloses a soft and hard composite anti-bite dental pad for electrophysiological monitoring in the perioperative period of neurosurgery, the soft and hard composite anti-bite dental pad comprises a lower frame, an upper frame is arranged above the lower frame, and the lower frame and the upper frame are both of a hollow double-side structure. According to the soft and hard composite anti-bite dental pad for electrophysiology monitoring in the perioperative period of the neurosurgery department, the hard upper frame and the hard lower frame are arranged to support teeth of a patient, and the flexible outer check block and the flexible inner check block are arranged on the outer surface of the upper frame and the outer surface of the lower frame, so that the device and the oral cavity of the patient can be separated and buffered; a soft first air bag and a soft second air bag are arranged on the inner surface of the upper frame and the inner surface of the lower frame, the first air bag and the second air bag are used for buffering between the upper frame and the gum and between the lower frame and the gum of the device, and by inflating the first air bag and the second air bag, the oral cavity is prevented from being directly pressed by the device; the compression force of the device on the gingiva of the patient is adjusted.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a hard-soft composite bite-proof dental pad for electrophysiological monitoring during the perioperative period of neurosurgery. Background Technique

[0002] Neurosurgical operations refer to operations for treating nervous system diseases. During neurosurgical operations, patients need to be under general anesthesia with tracheal intubation, and intraoperative electrophysiological monitoring is carried out simultaneously to evaluate the nerve function status. When performing electrophysiological monitoring on patients during the operation, electrical stimulation may cause unconscious convulsions or muscle spasms in the patients, which may lead to tongue bites and gum bleeding. To ensure the safety of patients during the operation, dental pads are usually used to support and protect the oral cavity of patients.

[0003] Traditional dental pads mostly adopt single-hardness materials, such as hard plastics or silicone designs. The comfort and support force of dental pads made of hard materials are insufficient, and it is easy to compress the gums and cause bleeding. While pure soft materials cannot provide sufficient support force, which may lead to tongue bites or the tracheal catheter being bitten closed and unable to ventilate. Existing dental pads prevent tongue biting through physical blocking, but it may affect airway patency or electrophysiological signal acquisition. Moreover, the specifications of the dental pads are fixed, so there is a lack of personalized design for the oral structures of different patients, resulting in unstable fixation or concentrated pressure points and being unable to better adapt to the oral cavities of patients. Summary of the Invention

[0004] The purpose of the present invention is to provide a hard-soft composite bite-proof dental pad for electrophysiological monitoring during the perioperative period of neurosurgery, so as to solve the problems of insufficient comfort of traditional pure hard material dental pads and insufficient support force of pure soft materials mentioned in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A hard-soft composite bite-proof dental pad for electrophysiological monitoring during the perioperative period of neurosurgery, including a lower frame, an upper frame is arranged above the lower frame. Both the lower frame and the upper frame are hollow bilateral structures. The lower frame is an arc-shaped structure, and the lower surface and both side surfaces of the lower frame are open. The interface of the lower frame is in an "n" shape. The upper frame has the same structure as the lower frame and is arranged in the opposite direction to the lower frame. A connection structure is arranged between the lower frame and the upper frame. While connecting and supporting the lower frame and the upper frame, the connection structure adjusts the distance between the lower frame and the upper frame to facilitate the connection of the lower frame and the upper frame with the patient's oral cavity. The connection structure includes a connecting frame. The connecting frame is an arc-shaped block structure. A notch is arranged on the upper surface of the connecting frame. The notch on the surface of the connecting frame is an inclined slope structure;

[0006] Preferably, the upper surface of the connecting frame contacts the lower surface of the upper frame, the lower surface of the connecting frame is slidably mounted on the upper surface of the lower frame, a lower support rod is provided on one side of the connecting frame, the lower surface of the lower support rod is fixedly mounted on the upper surface of the lower frame, a cylindrical groove is provided on the upper surface of the lower support rod, an upper support rod is slidably mounted on the inner wall of the groove on the surface of the lower support rod, the upper surface of the upper support rod is fixedly mounted on the lower surface of the upper frame, a spring is connected to the lower surface of the upper support rod, and the other end of the spring is fixedly connected to the bottom of the groove of the lower support rod. The lower support rod, the upper support rod and the spring form a set of telescopic rod structures, and two sets of telescopic rod structures are respectively provided on both sides of the connecting frame.

[0007] With the above technical solution, the distance between the upper frame and the lower frame can be changed by using the telescopic rod structure, which is convenient for the device to enter the patient's oral cavity.

[0008] Preferably, a trachea guiding structure is provided on the surface of the connecting frame. While guiding the inserted trachea through the guiding tube, the tongue of the patient is pressed by using a tongue depressor.

[0009] With the above technical solution, the inserted trachea can be guided by using the trachea guiding structure.

[0010] Preferably, the trachea guiding structure includes a convex block. The convex block is an arc-shaped plate structure. The convex blocks are respectively fixedly mounted on the upper and lower surfaces of the connecting frame. The side surfaces of the upper and lower convex blocks respectively contact the front surfaces of the upper frame and the lower frame. A guiding tube is embedded and fixed on the surface of the connecting frame. A notch is provided on the surface of the guiding tube along the contour of the connecting frame. A square card slot is provided on one side surface of the connecting frame. Two square card slots on the surface of the connecting frame are symmetrically arranged. The two square card slots on the surface of the connecting frame are symmetrically arranged on both sides of the guiding tube. A tongue depressor is installed in the square card slot of the connecting frame. One side of the tongue depressor is arc-shaped, and the other side of the tongue depressor is two symmetrically arranged rectangular protrusions. The rectangular protrusions of the tongue depressor are respectively slidably inserted into the inner wall of the square card slot of the connecting frame.

[0011] With the above technical solution, the tongue of the patient can be pressed by using the slidable tongue depressor.

[0012] Preferably, a partition buffer structure is provided on the surfaces of the lower frame and the upper frame. The partition buffer structure realizes the partition buffer between the device and the patient's oral cavity through an outer block and an inner block, thereby increasing the comfort of the patient.

[0013] With the above technical solution, the partition between the device and the patient's oral cavity can be realized by using the partition buffer structure on the surfaces of the lower frame and the upper frame, thereby increasing the comfort.

[0014] Preferably, the separation and buffer structure includes an outer stopper. The outer stopper is an arc-shaped plate structure and is made of a flexible material. One end of the outer stopper is fixedly connected to the outer surface of the lower frame. An inner stopper is fixedly connected to the inner surface of the lower frame. The inner stopper has the same structure as the outer stopper. The outer stopper and the inner stopper form a separation and buffer structure, and another set of the same separation and buffer structure is arranged on the surface of the upper frame.

[0015] With the above technical solution, the outer stopper and the inner stopper can be used for separation and buffering between the device and the patient's oral cavity.

[0016] Preferably, an airbag buffer structure is arranged on the surfaces of the lower frame and the upper frame. The airbag buffer structure buffers between the patient's gums and the device through a first airbag and a second airbag, improving the comfort of using the device.

[0017] With the above technical solution, the airbag buffer structure can buffer between the device and the gums.

[0018] Preferably, the airbag buffer structure includes a first airbag. The first airbag is in a capsule shape and is embedded and fixed on the inner surface of the lower frame. The two side surfaces of the first airbag are respectively located on the outer surface of the lower frame and in the hollow interlayer of the lower frame. A plurality of first airbags are arranged in an arc array on the surface of the lower frame. The two side surfaces of the plurality of first airbags are respectively connected and communicated with the same second airbag and a first connecting pipe. The second airbag is in an arc shape, and the surface of the second airbag is adhesively connected to the inner surface of the lower frame. The first connecting pipe is located in the hollow interlayer of the lower frame. The first airbag, the second airbag and the first connecting pipe are symmetrically arranged on the inner surface of the lower frame. The two first connecting pipes are connected and communicated with the surface of the same second connecting pipe. The second connecting pipe is embedded and fixed on the lower surface of the lower frame.

[0019] With the above technical solution, the inflation and deflation of the first airbag and the second airbag can be used to adjust the pressing force of the device on the patient's gums.

[0020] Preferably, there are two sets of the airbag buffer structures. The two sets of airbag buffer structures are respectively arranged on the inner surfaces of the lower frame and the upper frame. The second connecting pipes arranged at the two airbag buffer structures are connected to the same hose and then externally connected to an air pump.

[0021] With the above technical solution, the airbag buffer structures arranged on the surfaces of the lower frame and the upper frame can respectively separate and buffer between the patient's upper and lower gums and the device.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: The soft and hard composite anti-bite dental pad for electrophysiological monitoring during the perioperative period of neurosurgery:

[0023] 1. In the present invention, a rigid upper frame and a lower frame are provided to support the patient's teeth. Flexible outer blocks and inner blocks are arranged on the outer surfaces of the upper frame and the lower frame, which can play a role of separation and buffering between the device and the patient's oral cavity, thereby reducing the direct compression of the device on the oral cavity. In addition, soft first airbags and second airbags are arranged on the inner surfaces of the upper frame and the lower frame. By inflating the first airbags and the second airbags, the compression force of the device on the patient's gums is adjusted, the adaptability of the device to different patients' oral conditions is increased, and the comfort of the device during use is further improved.

[0024] 2. An expansion rod structure composed of a lower support rod, an upper support rod and a spring is arranged between the upper frame and the lower frame of the device, so that the distance between the upper frame and the lower frame can be adjusted. When the upper frame and the lower frame are close to each other, the overall height of the device can be reduced, which is convenient for the device to enter the patient's oral cavity. At the same time, a connecting frame is arranged between the upper frame and the lower frame. The connecting frame is slidably installed on the upper surface of the lower frame. A guide tube and a tongue depressor are arranged on the surface of the connecting frame. The guide tube is used to guide the inserted trachea to ensure the stable position of the inserted trachea, while the tongue depressor can press the patient's tongue to prevent the tongue from blocking the trachea and ensure the patency of the trachea. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the external structure of the present invention;

[0026] Figure 2 is a schematic diagram of the front view structure of the present invention;

[0027] Figure 3 is a schematic diagram of the rear view structure of the present invention;

[0028] Figure 4 is a schematic diagram of the upper frame structure of the present invention;

[0029] Figure 5 is a schematic diagram of the side sectional structure of the upper frame of the present invention;

[0030] Figure 6 is a schematic diagram of the first airbag and the second airbag structure of the present invention;

[0031] Figure 7 is a schematic diagram of the formal structure of the lower frame of the present invention;

[0032] Figure 8 is a schematic diagram of the rear view structure of the lower frame of the present invention;

[0033] Figure 9 is a schematic diagram of the side sectional structure of the lower support rod of the present invention;

[0034] Figure 10 is a schematic diagram of the sliding structure of the connecting frame of the present invention;

[0035] Figure 11 This is a schematic side-sectional view of the connecting frame of the present invention.

[0036] In the figure: 1, lower frame; 2, upper frame; 3, connecting frame; 4, convex block; 5, guide tube; 6, tongue pressing plate; 7, lower support rod; 8, upper support rod; 9, spring; 10, outer stopper; 11, inner stopper; 12, first airbag; 13, second airbag; 14, first connecting pipe; 15, second connecting pipe. Specific embodiments

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] Please refer to Figures 1 - 11 , the present invention provides a technical solution: a soft-hard composite anti-bite dental pad for electrophysiological monitoring during the perioperative period of neurosurgery, including a lower frame 1, an upper frame 2, a connecting frame 3, a convex block 4, a guide tube 5, a tongue pressing plate 6, a lower support rod 7, an upper support rod 8, a spring 9, an outer stopper 10, an inner stopper 11, a first airbag 12, a second airbag 13, a first connecting pipe 14, and a second connecting pipe 15.

[0039] An upper frame 2 is arranged above the lower frame 1, and both the lower frame 1 and the upper frame 2 are hollow double-sided structures. The lower frame 1 is an arc-shaped structure, and the lower surface and the two side surfaces of the lower frame 1 are open. The interface of the lower frame 1 is n-shaped. The upper frame 2 has the same structure as the lower frame 1, and the upper frame 2 is arranged in the opposite direction to the lower frame 1. A connecting structure is arranged between the lower frame 1 and the upper frame 2. The connecting structure connects and supports the lower frame 1 and the upper frame 2, and adjusts the distance between the lower frame 1 and the upper frame 2 to facilitate the connection between the lower frame 1 and the upper frame 2 and the patient's oral cavity. The connecting structure includes a connecting frame 3, and the connecting frame 3 is an arc-shaped block structure. The upper surface of the connecting frame 3 is provided with a notch, and the notch on the surface of the connecting frame 3 is inclined. Slope structure, the upper surface of the connecting frame 3 contacts the lower surface of the upper frame 2, the lower surface of the connecting frame 3 is slidably mounted on the upper surface of the lower frame 1, a lower support rod 7 is provided on one side of the connecting frame 3, the lower surface of the lower support rod 7 is fixedly mounted on the upper surface of the lower frame 1, the upper surface of the lower support rod 7 is provided with a cylindrical groove, the inner wall of the groove on the surface of the lower support rod 7 is slidably mounted with an upper support rod 8, the upper surface of the upper support rod 8 is fixedly mounted on the lower surface of the upper frame 2, the lower surface of the upper support rod 8 is connected with a spring 9, the other end of the spring 9 is fixedly connected to the bottom of the groove of the lower support rod 7, the lower support rod 7, the upper support rod 8 and the spring 9 constitute a group of telescopic rod structures, and two groups of telescopic rod structures are respectively provided on both sides of the connecting frame 3;

[0040] like Figure 1 , Figure 2 , Figure 3 , Figure 7 and Figure 9 As shown, when using the device, hold the protrusion 4 on one side of the connecting frame 3 and pull the connecting frame 3 to one side, so that the connecting frame 3 slides to one side on the upper surface of the lower frame 1, and the lower frame 1 and the upper frame 2 lose the supporting force of the upper and lower surfaces of the connecting frame 3. Hold the lower frame 1 and the upper frame 2 and apply force to make the lower frame 1 and the upper frame 2 close to each other. At this time, the upper support rod 8 slides downward on the inner wall of the lower support rod 7, and at the same time compresses the spring 9 inside the lower support rod 7, and the distance between the lower frame 1 and the upper frame 2 is reduced, and the overall height of the device is reduced, which makes it easier to put the device into the patient's mouth, align the upper frame 2 with the patient's upper gums, and align the lower frame 1 with the patient's lower gums. At this time, the spring 9 rebounds, driving the upper support rod 8 to slide upward, thereby spreading the lower frame 1 and the upper frame 2 apart to support the patient's mouth.

[0041] The surface of the connecting frame 3 is provided with a trachea guiding structure. While the trachea guiding structure guides the inserted trachea through the guiding tube 5, the tongue depressor 6 is used to press the patient's tongue. The trachea guiding structure includes a convex block 4. The convex block 4 is an arc-shaped plate structure. The convex block 4 is fixedly installed on the upper and lower surfaces of the connecting frame 3 respectively. The side surfaces of the upper and lower convex blocks 4 are in contact with the front surfaces of the upper frame 2 and the lower frame 1 respectively. The guiding tube 5 is fixedly embedded on the surface of the connecting frame 3. A notch is arranged on the surface of the guiding tube 5 along the contour of the connecting frame 3. A square card slot is arranged on one side surface of the connecting frame 3. Two square card slots on the surface of the connecting frame 3 are symmetrically arranged. The two square card slots on the surface of the connecting frame 3 are symmetrically arranged on both sides of the guiding tube 5. The tongue depressor 6 is installed in the square card slot of the connecting frame 3. One side of the tongue depressor 6 is arc-shaped, and the other side of the tongue depressor 6 is two symmetrically arranged rectangular protrusions. The rectangular protrusions of the tongue depressor 6 are respectively slidably inserted into the inner wall of the square card slot of the connecting frame 3;

[0042] As Figure 1 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11 shown, when the lower frame 1 and the upper frame 2 support the patient's oral cavity, the connecting frame 3 is pushed inward, so that the connecting frame 3 slides inward on the upper surface of the lower frame 1 until the upper surface of the connecting frame 3 contacts the lower surface of the upper frame 2 again. The connecting frame 3 is used for support between the lower frame 1 and the upper frame 2. At this time, the trachea is inserted into the patient's oral cavity along the guiding tube 5. During the process of the trachea being inserted along the guiding tube 5, one end of the trachea contacts one side of the tongue depressor 6. As the trachea is inserted, the trachea will push the tongue depressor 6 to slide outward on the inner wall of the square card slot of the connecting frame 3, so that the arc-shaped side of the tongue depressor 6 presses the patient's tongue, preventing the patient's tongue from falling back and blocking the trachea due to unconscious convulsions or muscle spasms during the operation, and ensuring the patient's smooth breathing.

[0043] The surfaces of the lower frame 1 and the upper frame 2 are provided with a partition buffer structure. The partition buffer structure realizes the partition buffer between the device and the patient's oral cavity through the outer block 10 and the inner block 11, increasing the comfort of the patient. The partition buffer structure includes the outer block 10. The outer block 10 is an arc-shaped plate structure. The outer block 10 is made of a flexible material. One end of the outer block 10 is fixedly connected to the outer surface of the lower frame 1. The inner surface of the lower frame 1 is fixedly connected with the inner block 11. The inner block 11 has the same structure as the outer block 10. The outer block 10 and the inner block 11 form a partition buffer structure. Another set of the same partition buffer structure is provided on the surface of the upper frame 2. The surfaces of the lower frame 1 and the upper frame 2 are provided with an airbag buffer structure. The airbag buffer structure buffers between the patient's gums and the device through the first airbag 12 and the second airbag 13, improving the comfort of using the device. The airbag buffer structure includes the first airbag 12. The first airbag 12 is a capsule-shaped structure. The first airbag 12 is embedded and fixed on the inner surface of the lower frame 1. The two side surfaces of the first airbag 12 are respectively located on the outer surface of the lower frame 1 and within the hollow interlayer of the lower frame 1. A plurality of first airbags 12 are arc-arrayed on the surface of the lower frame 1. The two side surfaces of the plurality of first airbags 12 are respectively connected in communication with the same second airbag 13 and the first connecting pipe 14. The second airbag 13 is an arc-shaped structure, and the surface of the second airbag 13 is adhesively connected to the inner surface of the lower frame 1. The first connecting pipe 14 is located within the hollow interlayer of the lower frame 1. The first airbag 12, the second airbag 13 and the first connecting pipe 14 are symmetrically arranged on the inner surface of the lower frame 1. The two first connecting pipes 14 are connected in communication with the surface of the same second connecting pipe 15. The second connecting pipe 15 is embedded and fixed on the lower surface of the lower frame 1. The airbag buffer structure is provided with two sets. The two sets of airbag buffer structures are respectively arranged on the inner surfaces of the lower frame 1 and the upper frame 2. The second connecting pipes 15 arranged at the two airbag buffer structures are connected to the same hose and then externally connected to an air pump;

[0044] Such as Figure 1 , Figure 4 , Figure 5 and Figure 6As shown, when the lower frame 1 and the upper frame 2 support the patient's oral cavity, the outer stoppers 10 on the outer surfaces of the lower frame 1 and the upper frame 2 come into contact with the patient's oral cavity, and the inner stoppers 11 on the surfaces of the lower frame 1 and the upper frame 2 also come into contact with the inner wall of the patient's oral cavity. Since the outer stoppers 10 and the inner stoppers 11 are made of arc-shaped flexible materials, when the outer stoppers 10 and the inner stoppers 11 come into contact with the patient's oral cavity, they can adapt to the contour of the patient's oral cavity, improving the wearing stability. The flexible outer stoppers 10 and inner stoppers 11 can also increase the comfort of the patient when wearing. At the same time, the first airbags 12 and the second airbags 13 on the inner walls of the lower frame 1 and the upper frame 2 come into contact with the patient's gums. The soft first airbags 12 and second airbags 13 can increase the comfort of the patient when wearing. Connect the connecting hose of the second connecting pipe 15 to an air pump, and inflate the second connecting pipe 15 through the air pump. The air enters the first connecting pipe 14 along the second connecting pipe 15 and enters the first airbags 12 and the second airbags 13 along the first connecting pipe 14. By controlling the inflation volume of the air pump, the degree of inflation of the first airbags 12 and the second airbags 13 is controlled, thereby adjusting the pressing force of the device on the patient's gums to adapt to different patients.

[0045] Working principle: Use the lower frame 1 and the upper frame 2 to form a rigid support body. Use the lower support rod 7, the upper support rod 8 and the spring 9 to form a telescopic rod structure to support the lower frame 1 and the upper frame 2. Adjust the distance between the lower frame 1 and the upper frame 2 by slidingly connecting the lower support rod 7 and the upper support rod 8, facilitating the device to be inserted into the patient's oral cavity. A connecting frame 3 is arranged between the lower frame 1 and the upper frame 2. Guide the trachea to be inserted through the guide tube 5 on the surface of the connecting frame 3. Use one end of the tongue depressor 6 to press the tongue to prevent the tongue from blocking the trachea when the surgical patient twitches. Use the flexible outer stoppers 10 and inner stoppers 11 to buffer and decompress between the dental pad and the oral cavity, and the first airbags 12 and the second airbags 13 buffer between the gums and the device. Inflate the first airbags 12 and the second airbags 13 through an air pump to adjust the pressing force of the device to adapt to different patients.

[0046] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A soft and hard composite anti-bite tooth pad for perioperative electrophysiological monitoring in neurosurgery, comprising a lower frame (1), an upper frame (2) being arranged above the lower frame (1), the lower frame (1) and the upper frame (2) both being hollow double-sided structures, characterized in that: The lower frame (1) is an arc-shaped structure, and the lower surface and both side surfaces of the lower frame (1) are open. The interface of the lower frame (1) is n-shaped. The upper frame (2) has the same structure as the lower frame (1), and the upper frame (2) is arranged in the opposite direction to the lower frame (1). A connecting structure is arranged between the lower frame (1) and the upper frame (2). The connecting structure connects and supports the lower frame (1) and the upper frame (2), and adjusts the distance between the lower frame (1) and the upper frame (2) to facilitate the connection between the lower frame (1) and the upper frame (2) and the patient's oral cavity. The connecting structure includes a connecting frame (3). The connecting frame (3) is an arc-shaped block structure. The upper surface of the connecting frame (3) is provided with a notch. The notch on the surface of the connecting frame (3) is an inclined slope structure.

2. The soft and hard composite anti-bite tooth pad for perioperative electrophysiological monitoring of neurosurgery according to claim 1, characterized in that: The upper surface of the connecting frame (3) contacts with the lower surface of the upper frame (2), and the lower surface of the connecting frame (3) is slidably mounted on the upper surface of the lower frame (1). A lower support rod (7) is provided on one side of the connecting frame (3), and the lower surface of the lower support rod (7) is fixedly mounted on the upper surface of the lower frame (1). The upper surface of the lower support rod (7) is provided with a cylindrical groove, and an upper support rod (8) is slidably mounted on the inner wall of the groove on the surface of the lower support rod (7). The upper surface of the upper support rod (8) is fixedly mounted on the lower surface of the upper frame (2), and the lower surface of the upper support rod (8) is connected to a spring (9), and the other end of the spring (9) is fixedly connected to the bottom of the groove of the lower support rod (7). The lower support rod (7), the upper support rod (8) and the spring (9) constitute a group of telescopic rod structures, and two groups of the telescopic rod structures are respectively arranged on both sides of the connecting frame (3).

3. The soft and hard composite anti-bite tooth pad for perioperative electrophysiological monitoring of neurosurgery according to claim 1, characterized in that: The surface of the connecting frame (3) is provided with a trachea guiding structure, which guides the inserted trachea through a guiding tube (5) and suppresses the patient's tongue through a tongue depressor (6).

4. The soft and hard composite anti-bite tooth pad for perioperative electrophysiological monitoring of neurosurgery according to claim 3, characterized in that: The trachea guide structure comprises a convex block (4), which is an arc-shaped plate structure. The convex block (4) is fixedly mounted on the upper and lower surfaces of the connecting frame (3), respectively. The side surfaces of the upper and lower convex blocks (4) are in contact with the front surfaces of the upper frame (2) and the lower frame (1), respectively. A guide tube (5) is embedded and fixed on the surface of the connecting frame (3). The surface of the guide tube (5) is provided with a notch along the contour of the connecting frame (3). A square card slot is provided on one side surface of the connecting frame (3). Two square card slots on the surface of the connecting frame (3) are symmetrically arranged. The two square card slots on the surface of the connecting frame (3) are symmetrically arranged on both sides of the guide tube (5). A tongue depressor (6) is installed in the square card slot of the connecting frame (3). One side of the tongue depressor (6) is in an arc shape. The other side of the tongue depressor (6) is two symmetrically arranged rectangular protrusions. The rectangular protrusions of the tongue depressor (6) are respectively slidably inserted into the inner wall of the square card slot of the connecting frame (3).

5. The soft and hard composite anti-bite tooth pad for perioperative electrophysiological monitoring of neurosurgery according to claim 1, characterized in that: The surfaces of the lower frame (1) and the upper frame (2) are provided with separation and buffer structures, which realize separation and buffering between the device and the patient's oral cavity through an outer stopper (10) and an inner stopper (11), thereby increasing the comfort of the patient.

6. The soft and hard composite anti-bite tooth pad for perioperative electrophysiological monitoring of neurosurgery according to claim 5, characterized in that: The separation and buffer structure comprises an outer stopper (10), the outer stopper (10) is an arc-shaped plate structure, the outer stopper (10) is made of a flexible material, one end of the outer stopper (10) is fixedly connected to the outer surface of the lower frame (1), the inner surface of the lower frame (1) is fixedly connected to an inner stopper (11), the inner stopper (11) has the same structure as the outer stopper (10), the outer stopper (10) and the inner stopper (11) constitute a separation and buffer structure, and another group of the same separation and buffer structures is arranged on the surface of the upper frame (2).

7. The soft and hard composite anti-bite tooth pad for perioperative electrophysiological monitoring of neurosurgery according to claim 1, characterized in that: The surfaces of the lower frame (1) and the upper frame (2) are provided with airbag cushioning structures, and the airbag cushioning structures provide cushioning between the patient's gums and the device through airbag No. 1 (12) and airbag No. 2 (13), thereby improving the comfort of using the device.

8. The soft and hard composite bite-proof tooth pad for perioperative electrophysiological monitoring of neurosurgery according to claim 7, characterized in that: The airbag cushioning structure comprises an airbag (12) of number one, the airbag (12) of number one being a capsule-shaped structure, the airbag (12) of number one being embedded and fixed on the inner surface of the lower frame (1), the two side surfaces of the airbag (12) of number one being respectively located on the outer surface of the lower frame (1) and in the hollow interlayer of the lower frame (1), the surface arc array of the lower frame (1) having a plurality of airbags (12) of number one, the two side surfaces of the plurality of airbags (12) of number one being respectively connected to the same airbag (13) of number two and the first connecting pipe (14) The second airbag (13) is an arc-shaped structure, and the surface of the second airbag (13) is bonded to the inner surface of the lower frame (1). The first connecting tube (14) is located in the hollow interlayer of the lower frame (1). The inner surface of the lower frame (1) is symmetrically provided with the first airbag (12), the second airbag (13) and the first connecting tube (14). The two first connecting tubes (14) are connected to the surface of the same second connecting tube (15). The second connecting tube (15) is embedded and fixed on the lower surface of the lower frame (1).

9. The soft and hard composite anti-bite tooth pad for perioperative electrophysiological monitoring of neurosurgery according to claim 8, characterized in that: The airbag cushioning structure is provided in two groups, and the two groups of airbag cushioning structures are respectively arranged on the inner surfaces of the lower frame (1) and the upper frame (2). The second connecting pipes (15) arranged at the two airbag cushioning structures are connected to the same hose and then connected to an external air pump.

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