A dental cushion structure for intraoperative neurophysiological monitoring

Abstract

This invention relates to the field of medical technology and discloses a dental pad structure for intraoperative neurophysiological monitoring, comprising a lower dental pad and a fixing box. The fixing box is located on the front side of the lower dental pad, and an upper dental pad is movably mounted on the top of the lower dental pad. A fixing tube extending to the rear side of the lower dental pad is fixedly mounted on the front side of the lower dental pad, and the fixing box is located outside the fixing tube and fits against it. An anti-wear pad is fixedly mounted on the rear side of the fixing box, sleeved on the outside of the fixing tube and fitting against the lower and upper dental pads. A rubber sleeve is fixedly mounted on the outside of the fixing box, and a clamping mechanism is provided on the inner side of the fixing box, fitting against the fixing box and extending to the outside of the fixing box. This dental pad structure for intraoperative neurophysiological monitoring achieves the purpose of easy disassembly and prevention of overall disposal by setting the clamping mechanism, and achieves the purpose of a stable structure by setting the fixing mechanism and the mounting mechanism.

Description

Technical Field

[0001] This invention relates to the field of medical technology, specifically to a dental pad structure for intraoperative neurophysiological monitoring. Background Technology

[0002] A search revealed Chinese Patent Publication No. CN223126659U, which discloses a dental pad device for intraoperative neurophysiological monitoring, comprising a lower dental pad and an upper dental pad. This invention, by setting a pad plate, allows the upper and lower dental pads to fully contact the molars within the cavity, thereby reducing pressure on the incisors and preventing damage to the patient's incisors. Furthermore, an inner liner plate is provided on the outside of the tracheal passage; under the protection of the inner liner plate, the trachea is prevented from being flattened by the patient, ensuring normal tracheal use. Moreover, the tracheal passage of this invention has a certain length and is located in the middle of the dental pad, with the entire dental pad placed... Behind the patient's mouth, the internal tracheal passage can press down on the tongue, preventing it from entering between the upper and lower teeth and avoiding tongue biting. The existing technical solutions mentioned above have the following drawbacks: relying on the interlocking of the upper and lower alveoli with the teeth to fix the dental pad, there is no stable structure. During the patient's operation, the dental pad may shift due to body movement or involuntary muscle twitching, affecting its protective function. Moreover, it is inconvenient to disassemble. The dental pad is an integral structure with the whole, and in order to ensure single use, the whole can only be discarded, which results in resource waste. Therefore, a dental pad structure for neurophysiological monitoring during surgery is proposed to solve the above-mentioned problems. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this invention provides a dental pad structure for intraoperative neurophysiological monitoring, which has the advantages of a stable structure and easy disassembly to prevent overall disposal, thus solving the problems mentioned in the background art.

[0005] (II) Technical Solution

[0006] To achieve the aforementioned purpose of having a stable structure and being easy to disassemble to prevent overall disposal, the present invention provides the following technical solution: a dental pad structure for intraoperative neurophysiological monitoring, comprising a lower dental pad and a fixing box, wherein the fixing box is located on the front side of the lower dental pad, an upper dental pad is movably mounted on the top of the lower dental pad, a fixing tube extending to its rear side is fixedly mounted on the front side of the lower dental pad, the fixing box is located outside the fixing tube and fits against it, an anti-wear pad is fixedly mounted on the rear side of the fixing box, which is sleeved on the outside of the fixing tube and fits against the lower and upper dental pads, a rubber sleeve is fixedly mounted on the outside of the fixing box, a clamping mechanism is provided on the inner side of the fixing box that fits against the fixing box and extends to the outside of the fixing box, a fixing mechanism extending above the left and right sides of the fixing box is fixedly mounted between them, and an installation mechanism connected to the fixing mechanism is provided on the top of the fixing box;

[0007] The clamping mechanism includes a U-shaped plate. Two U-shaped plates are slidably installed on the inner side of the fixing box and extend to the left and right sides of the fixing box respectively. A telescopic spring is fixedly installed on the inner side of the U-shaped plate and is fixedly connected to the inner wall of the fixing box. A pull rod located on the outer side of the fixing box is fixedly installed between the upper and lower sides of the inner wall of the U-shaped plate. Anti-slip stabilizing blocks that fit against the fixing tube are fixedly installed on the opposite sides of the two U-shaped plates. A limit frame is fixedly installed on the right side of the left U-shaped plate, and a clamping plate extending to the inner side of the limit frame is fixedly installed on the left side of the right U-shaped plate.

[0008] Preferably, the fixing mechanism includes a mounting cylinder, and mounting cylinders located behind the rubber sleeve are fixedly installed on both the left and right sides of the fixing box. A U-shaped frame that fits against the outer side of the mounting cylinder is movably installed on the inner side of the mounting cylinder. A strip is fixedly installed between the tops of the two U-shaped frames. Fixing straps are fixedly installed on the opposite sides of the two U-shaped frames. A first Velcro is fixedly installed at the rear end of the left fixing strap, and a second Velcro is fixedly installed at the rear end of the right fixing strap.

[0009] Preferably, the installation mechanism includes an outer box, the top of which is fixedly mounted with a through-rubber sleeve, a movable plate slidably mounted on the inner side of the outer box, a wedge-shaped plate extending to the rear side of the movable plate and abutting the top of the strip plate, a wedge-shaped block fixedly mounted on the front side of the movable plate, a U-shaped rod extending to the inner side of the top of the outer box slidably mounted on the top of the outer box, a pressure plate slidably connected to the top of the wedge-shaped block fixedly mounted on the bottom of the U-shaped rod, a pressing plate fixedly mounted on the top of the U-shaped rod, and a return spring fixedly connected to the front side of the inner wall of the outer box fixedly mounted on the front side of the movable plate.

[0010] Preferably, the inner top wall of the outer box has a through hole adapted to the U-shaped rod, the bottom of the pressure plate is inclined and adapted to the top of the wedge block, the rear side of the inner wall of the outer box has a through hole adapted to the wedge plate, the top of the wedge plate is inclined, and the top of the pressing plate is provided with a sponge pad.

[0011] Preferably, the inner wall of the mounting cylinder is open on both the upper and lower sides, the fixing strap is a soft elastic strap, the first hook and loop fastener has a barbed surface, and the second hook and loop fastener has a rough surface.

[0012] Preferably, the inner wall of the fixing box has a circular hole adapted to the fixing tube on the rear side, the inner wall of the fixing box has an open design on the front side, the bottom of the lower dental pad has an arc groove, and the top of the upper dental pad has a placement groove.

[0013] Preferably, the right side of the limiting frame is provided with a slot adapted to the card plate, the left and right sides of the inner wall of the fixing box are provided with through holes adapted to the U-shaped plate, and the outside of the pull rod is covered with a soft sleeve.

[0014] Preferably, the U-shaped plate passes through the rubber sleeve, and the inner wall of the rubber sleeve has through holes on both the left and right sides that are adapted to the U-shaped plate.

[0015] Preferably, the number of the reset springs is two and they are symmetrically distributed from left to right, and the two U-shaped frames are symmetrically distributed from left to right.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a dental pad structure for intraoperative neurophysiological monitoring, which has the following beneficial effects:

[0018] 1. This dental pad structure for intraoperative neurophysiological monitoring utilizes a clamping mechanism to stably hold the fixation tube. After use, the fixation tube, lower dental pad, and upper dental pad can be disassembled, and the remaining parts can be reused multiple times. In the clamping mechanism, two U-shaped plates slide inside the fixation box and extend to the left and right sides of the box. In the initial state, the telescopic spring is in its naturally extended state, pushing the two U-shaped plates closer together, causing the two anti-slip stabilizing blocks to tightly adhere to the fixation tube, thus achieving clamping and fixing of the fixation tube. The limiting frame and clamping plate... The design further enhances clamping stability. The clamping plate extends into the slot inside the limiting frame to prevent the U-shaped plate from easily separating under external force. The anti-wear pad is fitted on the outside of the fixing tube and fits snugly with the lower and upper dental pads, which reduces friction between the fixing box and the dental pads and increases the comfort and stability of the fixing. The rubber sleeve is fixedly installed on the outside of the fixing box to protect the internal components and increase friction. The U-shaped plate passes through the rubber sleeve, and the through holes on the left and right sides of the inner wall of the rubber sleeve provide space for the sliding of the U-shaped plate, achieving the purpose of easy disassembly and preventing the whole piece from being discarded.

[0019] 2. This dental pad structure for intraoperative neurophysiological monitoring utilizes a fixing mechanism and an installation mechanism. The installation mechanism controls the fixing and releasing operations of the fixing mechanism. The wedge-shaped plate on the rear side of the moving plate extends to the rear side of the outer box and fits against the top of the strip plate. When the pressing plate is pressed down, the U-shaped rod slides down along the through hole in the inner top wall of the outer box, causing the pressing plate to move downward. Because the bottom of the pressing plate is designed with an inclination and matches the top of the wedge block, the downward movement of the pressing plate pushes the wedge block forward, thereby moving the moving plate forward and separating the wedge plate from the strip plate. At this time, the U-shaped frame of the fixing mechanism can move freely within the installation cylinder, facilitating adjustment of the fixing strap position or loosening of the fixing. When the pressing plate is released, the return spring returns to its natural extension state, pushing the moving plate backward, causing the wedge plate to re-fit against the top of the strip plate, restricting the movement of the U-shaped frame, thus achieving the fixing function of the fixing mechanism. The sponge pad on the top of the pressing plate increases the comfort during pressing, achieving the purpose of having a stable structure. Attached Figure Description

[0020] Figure 1 This is a three-dimensional view of the structure of the present invention;

[0021] Figure 2 This is a partial three-dimensional view of the structure of the present invention;

[0022] Figure 3 This is an exploded cross-sectional view of a portion of the structure of the present invention;

[0023] Figure 4 This is a partial cross-sectional perspective view of the clamping mechanism of the present invention;

[0024] Figure 5 This is a bottom-view perspective view of a partial structure of the present invention;

[0025] Figure 6 This is a rear perspective view of the structure of the present invention;

[0026] Figure 7 This is a rear sectional perspective view of the connection between the fixing mechanism and the installation mechanism of the present invention;

[0027] Figure 8 This is a rear sectional exploded view of the fixing mechanism of the present invention;

[0028] Figure 9 This is a rear sectional perspective view of the installation mechanism of the present invention.

[0029] In the diagram: 1 Lower jaw pad, 2 Upper jaw pad, 3 Fixing tube, 4 Fixing box, 5 Clamping mechanism, 51 U-shaped plate, 52 Telescopic spring, 53 Pull rod, 54 Anti-slip stabilizing block, 55 Limiting frame, 56 Card plate, 6 Anti-wear pad, 7 Fixing mechanism, 71 Mounting cylinder, 72 U-shaped frame, 73 Strip plate, 74 Fixing strap, 75 First Velcro, 76 Second Velcro, 8 Mounting mechanism, 81 Outer box, 82 Moving plate, 83 Wedge plate, 84 Wedge block, 85 U-shaped rod, 86 Pressure plate, 87 Pressing plate, 88 Return spring, 9 Rubber sleeve. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1-9This invention provides a technical solution: a dental pad structure for intraoperative neurophysiological monitoring, comprising a lower dental pad 1 and a fixing box 4, which serves as the bottom support component of the entire dental pad structure. The arc-shaped groove at the bottom of the fixing box 4 can closely conform to the physiological curve of the patient's lower jaw, providing a stable foundation for the entire device and ensuring that the dental pad will not easily move during the operation, thus ensuring the accuracy of neurophysiological monitoring. The fixing box 4 is located on the front side of the lower dental pad 1, and an upper dental pad 2 is movably installed on the top of the lower dental pad 1. The placement groove at the top of the upper dental pad 2 can be used to place auxiliary components related to neurophysiological monitoring, such as electrode pads and sensors, to facilitate the monitoring of the patient's oral nerves during the operation. Meanwhile, the upper dental pad 2 and the lower dental pad 1 work together to distribute the pressure on the patient's oral cavity and improve the patient's comfort. A fixing tube 3 extending to the back side is fixedly installed on the front side of the lower dental pad 1. The fixing box 4 is located outside the fixing tube 3 and fits against it. An anti-abrasion pad 6 is fixedly installed on the back side of the fixing box 4, which is sleeved on the outside of the fixing tube 3 and fits against the lower dental pad 1 and the upper dental pad 2. A rubber sleeve 9 is fixedly installed on the outside of the fixing box 4. A clamping mechanism 5 that fits against the fixing tube 3 and extends to the outside of the fixing box 4 is provided on the inside of the fixing box 4. A fixing mechanism 7 extending above the left and right sides of the fixing box 4 is fixedly installed. An installation mechanism 8 connected to the fixing mechanism 7 is provided on the top of the fixing box 4.

[0032] The inner wall of the fixing box 4 has a circular hole that matches the fixing tube 3 on the rear side. The inner wall of the fixing box 4 has an open design on the front side. The bottom of the lower dental pad 1 has an arc groove, and the top of the upper dental pad 2 has a placement groove.

[0033] The clamping mechanism 5 includes U-shaped plates 51. Two U-shaped plates 51 are slidably installed on the inner side of the fixing box 4, extending to the left and right sides of the fixing box 4 respectively. By sliding inside the fixing box 4, the clamping and releasing operations of the fixing tube 3 are realized. A telescopic spring 52 is fixedly installed on the inner side of the U-shaped plate 51 and fixedly connected to the inner wall of the fixing box 4. In the initial state, the telescopic spring 52 pushes the two U-shaped plates 51 closer to each other, so that the anti-slip stabilizing block 54 clamps the fixing tube 3, realizing the stable fixation of the fixing box 4. When adjustment or disassembly is required, the elastic force of the telescopic spring 52 is overcome to pull the U-shaped plates 51 apart. A pull rod 53 located outside the fixing box 4 is fixedly installed between the upper and lower sides of the inner wall of the U-shaped plate 51. Anti-slip stabilizing blocks 54 that fit with the fixing tube 3 are fixedly installed on the opposite sides of the two U-shaped plates 51. A limit frame 55 is fixedly installed on the right side of the left U-shaped plate 51, and a card plate 56 extending to the inside of the limit frame 55 is fixedly installed on the left side of the right U-shaped plate 51.

[0034] The right side of the limiting frame 55 is provided with a slot that matches the card plate 56. The inner walls of the fixing box 4 are provided with through holes that match the U-shaped plate 51 on both the left and right sides. The outside of the pull rod 53 is covered with a soft sleeve. The U-shaped plate 51 passes through the rubber sleeve 9. The inner walls of the rubber sleeve 9 are provided with through holes that match the U-shaped plate 51 on both the left and right sides.

[0035] The fixing mechanism 7 includes an installation cylinder 71. Installation cylinders 71 are fixedly installed on both the left and right sides of the fixing box 4, located behind the rubber sleeve 9. A U-shaped frame 72, which fits against the outer side of the installation cylinder 71, is movably installed on the inner side of the installation cylinder 71. A strip 73 is fixedly installed between the tops of the two U-shaped frames 72, cooperating with the wedge plate 83 in the fixing mechanism 8 to achieve the fixing and loosening operation of the fixing mechanism 7. Fixing straps 74 are fixedly installed on opposite sides of the two U-shaped frames 72. A first Velcro 75 is fixedly installed at the rear end of the left fixing strap 74, and a second Velcro 76 is fixedly installed at the rear end of the right fixing strap 74. The first Velcro 75 at the rear end of the left fixing strap 74 and the second Velcro 76 at the rear end of the right fixing strap 74 cooperate to firmly adhere the fixing straps 74 together, thereby fixing the dental splint structure to the patient's head.

[0036] The inner wall of the mounting tube 71 is open on both the upper and lower sides. The fixing strap 74 is a soft elastic strap. The first hook and loop fastener 75 has a barbed surface, and the second hook and loop fastener 76 has a rough surface.

[0037] The mounting mechanism 8 includes an outer box 81. The top of the fixed box 4 is fixedly mounted with an outer box 81 that passes through a rubber sleeve 9. A movable plate 82 is slidably mounted on the inner side of the outer box 81. A wedge plate 83 extending to the rear side of the movable plate 82 and abutting the top of the strip 73 is fixedly mounted on the rear side of the outer box 81. The wedge plate 83 abutting the top of the strip 73 restricts the movement of the U-shaped frame 72 and realizes the fixing function of the fixing mechanism 7. A wedge block 84 is fixedly mounted on the front side of the movable plate 82. A U-shaped rod 85 extending to the inner side of the outer box 81 is slidably mounted on the top of the outer box 81. A pressure plate 86 slidably connected to the top of the wedge block 84 is fixedly mounted on the bottom of the U-shaped rod 85. A pressing plate 87 is fixedly mounted on the top of the U-shaped rod 85 for easy manual pressing by the operator. A return spring 88 fixedly connected to the front side of the inner wall of the outer box 81 is fixedly mounted on the front side of the movable plate 82.

[0038] The inner top wall of the outer box 81 has a through hole that matches the U-shaped rod 85. The bottom of the pressure plate 86 is inclined and matches the top of the wedge block 84. The rear side of the inner wall of the outer box 81 has a through hole that matches the wedge plate 83. The top of the wedge plate 83 is inclined. The top of the pressing plate 87 is equipped with a sponge pad to increase the comfort of pressing and reduce the pressure on the hand. There are two reset springs 88, which are symmetrically distributed on the left and right. The two U-shaped frames 72 are symmetrically distributed on the left and right.

[0039] During use, check that all components of the dental pad structure are intact, ensuring that the extension spring 52 of the clamping mechanism 5 has normal elasticity and that the anti-slip stabilizing block 54 is unworn; that the fixing strap 74 of the fixing mechanism 7 has good elasticity, that the first Velcro 75 and the second Velcro 76 are firmly attached, that the return spring 88 of the installation mechanism 8 has normal elasticity, and that all components slide smoothly. Simultaneously, prepare electrode leads and other equipment related to neurophysiological monitoring. Place the lower dental pad 1 on the patient's lower jawbone, ensuring that the arc-shaped groove at its bottom fits tightly against the lower jawbone. Then, place the upper dental pad 2 on top of the lower dental pad 1 and adjust its position. To ensure the placement slot at the top of the upper dental pad 2 meets monitoring requirements, hold both pull rods 53 with both hands and pull them outwards. This causes the two U-shaped plates 51 to separate from each other against the elastic force of the telescopic spring 52. Place the fixing tube 3 between the two U-shaped plates 51, then release the pull rods 53. The telescopic spring 52 will then return to its elastic force, pushing the two U-shaped plates 51 closer together. This causes the anti-slip stabilizing block 54 to clamp the fixing tube 3, and simultaneously, the clamping plate 56 enters the slot inside the limiting frame 55, achieving stable fixation of the fixing box 4. Place the two U-shaped frames 72 into the mounting cylinder 71 respectively, adjust their positions, and ensure the fixing strap... 74 can be positioned appropriately around the patient's head. The first Velcro 75 on the back of the left fixation strap 74 is attached to the second Velcro 76 on the back of the right fixation strap 74, initially securing the dental splint structure. If the tightness of the fixation strap 74 needs adjustment, press down on the pressure plate 87. This causes the U-shaped rod 85 to move the pressure plate 86 downwards, pushing the wedge block 84 forward, which in turn moves the moving plate 82 forward. The wedge plate 83 separates from the strip plate 73. At this point, the position of the U-shaped frame 72 within the mounting cylinder 71 can be freely adjusted, thereby adjusting the tightness of the fixation strap 74. After adjusting to the appropriate position... Release the pressing plate 87, and the return spring 88 pushes the moving plate 82 backward, causing the wedge plate 83 to re-attach to the top of the strip plate 73, fixing the position of the U-shaped frame 72 and completing the fixation of the dental pad structure. Connect the electrode leads and other equipment required for neurophysiological monitoring to the appropriate positions on the fixation box 4, ensuring a secure connection, and begin intraoperative neurophysiological monitoring. After the surgery, first disconnect the electrode leads and other monitoring equipment from the fixation box 4, then press down on the pressing plate 87 to separate the wedge plate 83 from the strip plate 73, loosen the adhesive of the fixation strap 74, and remove the dental pad structure. Finally, clean and disinfect the dental pad structure for future use.

[0040] Intraoperative neurophysiological monitoring is a technique that uses neurophysiological technology to monitor the functional integrity of the nervous system in a dangerous state in real time during surgery. Its core purpose is to help surgeons identify the risk of nerve damage in a timely manner by capturing changes in electrophysiological signals during nerve transmission, and to adjust the operation to avoid permanent neurological dysfunction, thereby improving surgical safety and patient prognosis.

[0041] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0042] In summary, this dental pad structure for intraoperative neurophysiological monitoring utilizes a clamping mechanism 5 to stably hold the fixation tube 3. After use, the fixation tube 3, lower dental pad 1, and upper dental pad 2 can be disassembled, and the remaining parts can be reused multiple times. In the clamping mechanism 5, two U-shaped plates 51 are slidably mounted inside the fixation box 4 and extend to the left and right sides of the fixation box 4, respectively. Initially, the telescopic spring 52 is in its naturally extended state, pushing the two U-shaped plates 51 closer together, causing the two anti-slip stabilizing blocks 54 to tightly adhere to the fixation tube 3, thus achieving clamping and fixation of the fixation tube 3. The cooperation of the limiting frame 55 and the clamping plate 56 further enhances the clamping effect. For stability, the clamping plate 56 extends into the groove inside the limiting frame 55 to prevent the U-shaped plate 51 from easily separating under external force. The anti-wear pad 6 is sleeved on the outside of the fixing tube 3 and fits against the lower tooth pad 1 and the upper tooth pad 2, which can reduce the friction between the fixing box 4 and the tooth pad and increase the comfort and stability of the fixing. The rubber sleeve 9 is fixedly installed on the outside of the fixing box 4 to protect the internal components and increase the friction. The U-shaped plate 51 passes through the rubber sleeve 9. The through holes on the left and right sides of the inner wall of the rubber sleeve 9 provide space for the sliding of the U-shaped plate 51, realizing the purpose of easy disassembly and preventing the whole piece from being discarded. By setting the fixing mechanism 7 and the installation mechanism 8, the installation mechanism 8 is used to control the fixing machine. In the fixing and loosening operation of mechanism 7, the wedge plate 83 on the rear side of the moving plate 82 extends to the rear side of the outer box 81 and fits against the top of the strip 73. When the pressing plate 87 is pressed down, the U-shaped rod 85 slides down along the through hole in the inner top wall of the outer box 81, causing the pressure plate 86 to move downward. Since the bottom of the pressure plate 86 is inclined and matches the top of the wedge block 84, when the pressure plate 86 moves downward, it pushes the wedge block 84 forward, thereby causing the moving plate 82 to move forward, so that the wedge plate 83 separates from the strip 73. At this time, the U-shaped frame 72 of the fixing mechanism 7 can move freely in the mounting cylinder 71, which is convenient for adjusting the position of the fixing strap 74 or loosening the fixing. When the pressing plate 87 is released, the mechanism resets. Spring 88 returns to its natural extended state, pushing the moving plate 82 backward, so that the wedge plate 83 re-fits the top of the strip plate 73, restricting the movement of the U-shaped frame 72, thereby realizing the fixing function of the fixing mechanism 7. The sponge pad on the top of the pressing plate 87 can increase the comfort during pressing, achieving the purpose of having a stable structure. This solves the problem of relying on the interlocking of the upper and lower alveoli with the teeth to fix the dental pad. Without a stable structure, the dental pad may shift during the patient's operation due to body movement or involuntary muscle twitching, affecting its protective function. It is also inconvenient to disassemble. The dental pad and the whole are an integrated structure. In order to ensure single use, the whole can only be discarded, which causes the problem of resource waste.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover 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. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dental pad structure for intraoperative neurophysiological monitoring, comprising a lower dental pad (1) and a fixation box (4), wherein the fixation box (4) is located on the anterior side of the lower dental pad (1), an upper dental pad (2) is movably mounted on the top of the lower dental pad (1), a fixation tube (3) extending to its posterior side is fixedly mounted on the anterior side of the lower dental pad (1), the fixation box (4) is located outside the fixation tube (3) and fits against it, an anti-abrasion pad (6) is fixedly mounted on the posterior side of the fixation box (4) and fits against the lower dental pad (1) and the upper dental pad (2), and a rubber sleeve (9) is fixedly mounted on the outer side of the fixation box (4), characterized in that: The inner side of the fixing box (4) is provided with a clamping mechanism (5) that fits against the fixing tube (3) and extends to the outside of the fixing box (4). The left and right sides of the fixing box (4) are fixedly installed with a fixing mechanism (7) extending above it. The top of the fixing box (4) is provided with an installation mechanism (8) connected to the fixing mechanism (7). The clamping mechanism (5) includes a U-shaped plate (51). Two U-shaped plates (51) are slidably installed on the inner side of the fixed box (4) and extend to the left and right sides of the fixed box (4) respectively. A telescopic spring (52) is fixedly installed on the inner side of the U-shaped plate (51) and is fixedly connected to the inner wall of the fixed box (4). A pull rod (53) located on the outer side of the fixed box (4) is fixedly installed between the upper and lower sides of the inner wall of the U-shaped plate (51). Anti-slip stabilizing blocks (54) that fit against the fixed tube (3) are fixedly installed on the opposite sides of the two U-shaped plates (51). A limit frame (55) is fixedly installed on the right side of the left U-shaped plate (51), and a card plate (56) extending to the inner side of the limit frame (55) is fixedly installed on the left side of the right U-shaped plate (51).

2. The dental pad structure for intraoperative neurophysiological monitoring according to claim 1, characterized in that: The fixing mechanism (7) includes a mounting cylinder (71). The mounting cylinder (71) located behind the rubber sleeve (9) is fixedly installed on both the left and right sides of the fixing box (4). A U-shaped frame (72) that fits against the outside of the mounting cylinder (71) is movably installed on the inner side of the mounting cylinder (71). A strip plate (73) is fixedly installed between the tops of the two U-shaped frames (72). Fixing straps (74) are fixedly installed on the opposite sides of the two U-shaped frames (72). A first Velcro (75) is fixedly installed at the rear end of the left fixing strap (74), and a second Velcro (76) is fixedly installed at the rear end of the right fixing strap (74).

3. A dental pad structure for intraoperative neurophysiological monitoring according to claim 2, characterized in that: The installation mechanism (8) includes an outer box (81). The top of the fixed box (4) is fixedly installed with an outer box (81) that passes through a rubber sleeve (9). A movable plate (82) is slidably installed on the inner side of the outer box (81). A wedge plate (83) extending to the rear side of the movable plate (82) and fitting against the top of the strip plate (73) is fixedly installed on the rear side of the movable plate (82). A wedge block (84) is fixedly installed on the front side of the movable plate (82). A U-shaped rod (85) extending to the inner side of the top of the outer box (81) is slidably installed on the top of the outer box (81). A pressure plate (86) slidably connected to the top of the wedge block (84) is fixedly installed at the bottom of the U-shaped rod (85). A pressing plate (87) is fixedly installed at the top of the U-shaped rod (85). A return spring (88) fixedly connected to the front side of the inner wall of the outer box (81) is fixedly installed on the front side of the movable plate (82).

4. A dental pad structure for intraoperative neurophysiological monitoring according to claim 3, characterized in that: The inner top wall of the outer box (81) is provided with a through hole that matches the U-shaped rod (85). The bottom of the pressure plate (86) is inclined and matches the top of the wedge block (84). The rear side of the inner wall of the outer box (81) is provided with a through hole that matches the wedge plate (83). The top of the wedge plate (83) is inclined. The top of the pressing plate (87) is provided with a sponge pad.

5. A dental pad structure for intraoperative neurophysiological monitoring according to claim 2, characterized in that: The inner wall of the mounting tube (71) is open on both the upper and lower sides. The fixing band (74) is a soft elastic band. The first Velcro (75) has a barbed surface and the second Velcro (76) has a rough surface.

6. A dental pad structure for intraoperative neurophysiological monitoring according to claim 1, characterized in that: The inner wall of the fixing box (4) has a circular hole that matches the fixing tube (3) on the rear side. The inner wall of the fixing box (4) has an open design on the front side. The bottom of the lower dental pad (1) has an arc groove, and the top of the upper dental pad (2) has a placement groove.

7. A dental pad structure for intraoperative neurophysiological monitoring according to claim 1, characterized in that: The right side of the limiting frame (55) is provided with a slot that matches the card plate (56), and the inner walls of the fixing box (4) are provided with through holes that match the U-shaped plate (51) on both the left and right sides. The outside of the pull rod (53) is covered with a soft sleeve.

8. A dental pad structure for intraoperative neurophysiological monitoring according to claim 1, characterized in that: The U-shaped plate (51) penetrates the rubber sleeve (9), and the inner wall of the rubber sleeve (9) is provided with through holes on both the left and right sides that are adapted to the U-shaped plate (51).

9. A dental pad structure for intraoperative neurophysiological monitoring according to claim 3, characterized in that: The number of the reset springs (88) is two and they are symmetrically distributed from left to right, and the two U-shaped frames (72) are symmetrically distributed from left to right.

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