Early warning oral cavity protection device for intraoperative nerve electrophysiology monitoring

Abstract

The early warning oral cavity protection device comprises a bite block, an upper tooth groove and a lower tooth groove are formed in the bite block, the thickness of the portion, between the upper tooth groove and the lower tooth groove, of the bite block is gradually decreased from the middle to the two ends, and an avoiding hole for an air catheter cannula to penetrate through is formed in the middle of the bite block. A fixing column is arranged on the side, facing the outside of the oral cavity, of the bite block, and the trachea cannula penetrating through the receding hole is fixed to the fixing column through a rope or an adhesive tape. The tooth cushion between the upper tooth socket and the lower tooth socket plays a role in blocking and protecting, the position of the tongue is limited, the tongue is prevented from extending between the upper teeth and the lower teeth, and a split tooth socket in the prior art cannot prevent the teeth from extending between the upper teeth and the lower teeth. According to the scheme, the tongue can be well protected, and the risk that the tongue body is injured under the condition that the occlusal force of upper and lower teeth is large is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to an early warning oral protection device for intraoperative neuroelectrophysiological monitoring. Background Art

[0002] Intraoperative neuroelectrophysiological monitoring is increasingly being used. It can measure changes in the membrane potential of human organs, nerves and other tissues, which is beneficial to improving the accuracy of surgical operations and avoiding damage to normal nerve tissue. However, during motor evoked potential monitoring, a sensation similar to electric shock may occur, which is mostly within the tolerance range of normal people. Some may induce strong contraction of maxillofacial muscles, causing patients to bite their tongue unconsciously, and the upper and lower teeth may bite too hard, causing teeth to break and fall off. At the same time, some patients may experience limited venous return and maxillofacial swelling after tonic contraction. The upper and lower teeth may even bite the endotracheal tube flat, affecting the normal ventilation of the endotracheal tube. Serious complications such as difficulty in extubation also occur from time to time. It is imperative to take necessary measures to protect the oral cavity of such patients.

[0003] In order to avoid the above risks, dental pads are used clinically to protect the patient's teeth or tongue during neuroelectrophysiological monitoring. Existing oral pads do not have a definite tongue shielding effect, and the tongue is still prone to slipping between the molars, causing bite injuries. The amount of pressure applied to the oral pad by the patient when biting it is related to the intensity of stimulation to a certain extent. The current oral pads do not have the function of feedback pressure. If the doctor does not understand the intensity of pressure the patient is bearing, and the intensity of stimulation applied to the patient is too high, the bite force of the patient's upper and lower teeth may be greater, and the pressure on the oral pad will be greater. In this case, the risk of tongue injury will also be greater, so the current oral pads still need to be improved in terms of safety. Summary of the invention

[0004] The present invention aims to address the deficiencies of the prior art and provide an early warning oral protection device for intraoperative neuroelectrophysiological monitoring.

[0005] An early warning oral protection device for intraoperative neuroelectrophysiological monitoring in the present scheme includes a tooth pad, an upper tooth alveolus and a lower tooth alveolus are provided on the tooth pad, the thickness of the tooth pad between the upper tooth alveolus and the lower tooth alveolus gradually decreases from the middle to the two ends, an avoidance hole for passing a tracheal tube is provided in the middle of the tooth pad, a fixing column is provided on the side of the tooth pad facing outside the oral cavity, and the tracheal tube passing through the avoidance hole is fixed to the fixing column using a rope or tape.

[0006] The working principle of this solution is as follows: The thickness of the dental pad between the upper alveolar ridge and the lower alveolar ridge in this solution gradually decreases from the middle to both ends, which is determined according to the arrangement form of the teeth inside the oral cavity. This can help the patient's oral cavity easily be in a natural relaxation state. During the treatment process, the tracheal intubation passes through the avoidance hole, and the tracheal intubation is tied and fixed to the fixing column by using a rope or tape to prevent the tracheal intubation from shaking or loosening.

[0007] The dental pad in this solution is an integral whole, and the upper alveolar ridge and the lower alveolar ridge are respectively arranged on the upper and lower parts of the dental pad. This is significantly different from the two separate alveolar ridge structures in the prior art. During the use of this solution, the upper and lower teeth respectively bite into the upper alveolar ridge and the lower alveolar ridge, and the dental pad between the upper alveolar ridge and the lower alveolar ridge plays a role in blocking and protecting the tongue.

[0008] The beneficial technical effects of this solution are as follows: 1. The thickness of the dental pad gradually decreases from the middle to both ends, which helps the patient's oral cavity easily be in a natural relaxation state.

[0009] 2. The dental pad between the upper alveolar ridge and the lower alveolar ridge plays a role in blocking and protecting, restricting the position of the tongue to prevent the tongue from stretching between the upper and lower teeth. In the prior art, the separate alveolar ridges cannot prevent the tongue from stretching between the upper and lower teeth. Therefore, this solution can well protect the tongue and avoid the risk of the tongue body being injured when the biting force of the upper and lower teeth is large.

[0010] Furthermore, a micro pressure sensor is arranged between the bottom parts of the grooves at both ends of the upper alveolar ridge and the lower alveolar ridge. The micro pressure sensor is electrically connected to a pressure alarm. The bottom part of the groove corresponding to the position of the micro pressure sensor is made of silica gel. The pressure acting on the dental pad after the upper and lower teeth bite and the reaction force of the dental pad act on the micro pressure sensor bidirectionally. A threshold value is set for the pressure alarm. When the pressure signal received by the pressure alarm exceeds the threshold value, an alarm is issued. At this time, the doctor can reduce the stimulation intensity and relieve the discomfort of the patient. Thus, this device enhances the protective effect on the teeth, tongue body, etc. to a certain extent.

[0011] Furthermore, a sputum suction tube through hole for the sputum suction tube to pass through is also arranged on the dental pad.

[0012] Furthermore, an aerosol tube penetrating both sides of the dental pad is detachably connected to the dental pad. One end of the aerosol tube close to the concave surface of the dental pad is detachably connected to an aerosol head, and the other end of the aerosol tube is externally connected to an aerosol device. When the oral cavity is in an open state for a long time, the inside of the oral cavity is prone to dry discomfort. This solution replenishes moisture to the oral cavity through aerosol to slow down the discomfort caused by oral dryness.

[0013] Further, the device further includes a saliva suction tube, which is an arc-shaped tube consistent with the concave arc of the dental pad. A number of liquid inlet holes are evenly distributed on the saliva suction tube. A liquid suction tube is connected to the saliva suction tube, and the liquid suction tube detachably penetrates through both sides of the dental pad. The liquid suction tube is externally connected to a sputum suction device. After the generation of aerosol, there may also be accumulated water inside the oral cavity. At this time, the accumulated water in the oral cavity can be sucked away through the sputum suction device to avoid choking the patient with saliva. The saliva suction tube is set as an arc-shaped tube and is consistent with the concave arc of the dental pad to ensure that the saliva suction tube can fit well on the concave surface of the dental pad, and to avoid causing obvious foreign body sensation to the oral cavity during use and discomfort. The liquid inlet holes are evenly distributed on the whole saliva suction tube, which can suck the accumulated water inside the oral cavity more comprehensively. The liquid suction tube is detachably connected to the dental pad. Because there are many dead corners on the inner wall of the liquid suction tube and it is not easy to clean, the detachable connection method helps to disassemble and discard the liquid suction tube after use, while the dental pad can be reused after disinfection.

[0014] Further, a nut is threadedly connected to the outer wall of the liquid suction tube located on the convex surface of the dental pad. After the saliva suction tube fits with the concave surface of the dental pad, through the fixation of the nut, when the nut is attached to the convex surface of the dental pad, the length of the liquid suction tube in the dental pad is restricted, thereby avoiding loosening and shaking of the liquid suction tube and the saliva suction tube.

[0015] Further, a groove is provided at the lower end of the concave surface of the dental pad, and the saliva suction tube is detachably embedded in the groove. This makes the saliva suction tube as flush as possible with the concave surface of the dental pad to avoid excessive protrusion and causing discomfort to the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. 1 is a schematic structural diagram of Embodiment 1 of a warning oral protection device for intraoperative neuroelectrophysiological monitoring according to the present invention;

[0017] Figure 2 FIG. 2 is a schematic structural diagram of the saliva suction tube in Embodiment 1 of a warning oral protection device for intraoperative neuroelectrophysiological monitoring according to the present invention;

[0018] Figure 3 FIG. 3 is a combined diagram of the aerosol tube and the aerosol head in Embodiment 1 of a warning oral protection device for intraoperative neuroelectrophysiological monitoring according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0019] The following is further detailed through specific embodiments:

[0020] The reference numerals in the accompanying drawings of the specification include: dental pad 1, lower dental arch 101, upper dental arch 102, aerosol head 2, tube sleeve 201, aerosol tube 202, fixed column 3, sputum suction tube through hole 4, avoidance hole 5, saliva suction tube 6, liquid suction tube 7, nut 8.

[0021] Embodiment 1 is basically as shown in the attached Figures 1 to 3As shown: A warning oral protection device for intraoperative neuroelectrophysiological monitoring, including a dental pad 1. The dental pad 1 is provided with an upper tooth groove and a lower tooth groove 101. The thickness of the dental pad 1 between the upper tooth groove 102 and the lower tooth groove 101 gradually decreases from the middle to both ends. The bottom of the upper tooth groove 102 and the lower teeth is made of silica gel or a silica gel pad is attached thereto.

[0022] A relief hole 5 for the tracheal intubation to pass through and a sputum suction tube through-hole 4 for the sputum suction tube to pass through are provided in the middle of the dental pad 1. A fixing column 3 is provided on the side (convex surface) of the dental pad 1 facing the outside of the oral cavity. The tracheal intubation and the sputum suction tube passing through the relief hole 5 are fixed on the fixing column 3 by using a rope or a tape.

[0023] A slot is provided at the lower end of the concave surface of the dental pad 1, and a saliva suction tube 6 is embedded in the slot. Therefore, the saliva suction tube 6 is an arc-shaped tube that is consistent with the radian of the concave surface of the dental pad 1, and the saliva suction tube 6 can be taken out of the slot by pulling with an external force. As Figure 2 shown, a plurality of liquid inlet holes are evenly distributed on the saliva suction tube 6. A liquid suction tube 7 is connected to the saliva suction tube 6. The liquid suction tube 7 detachably penetrates through both sides of the dental pad 1. The liquid suction tube 7 is externally connected to a sputum suction device. A nut 8 is threadedly connected to the outer wall of the liquid suction tube 7 located on the convex surface of the dental pad 1. After the saliva suction tube 6 fits with the concave surface of the dental pad 1, by fixing the nut 8, when the nut 8 is attached to the convex surface of the dental pad 1, the length of the liquid suction tube 7 in the dental pad 1 is limited, thereby preventing the liquid suction tube 7 and the saliva suction tube 6 from loosening and shaking.

[0024] An aerosol tube 202 that penetrates through both sides of the dental pad 1 is slidably connected to the dental pad 1. One end of the aerosol tube 202 close to the concave surface of the dental pad 1 is connected to an aerosol head 2. As Figure 3 shown, the aerosol head 2 and the aerosol tube 202 are communicated through a tube sleeve 201. The tube sleeve 201 is threadedly sleeved on the outer wall of the aerosol tube 202. The other end of the aerosol tube 202 is externally connected to an aerosol device.

[0025] Embodiment 2 is different from Embodiment 1 in that a micro pressure sensor is provided between the bottom parts of the two ends of the upper tooth groove 102 and the lower tooth groove 101, and the micro pressure sensor is electrically connected to a pressure alarm.

[0026] Taking Embodiment 1 as an example, the working principle and implementation process of the present invention are as follows: The thickness of the dental pad 1 between the upper tooth groove 102 and the lower tooth groove 101 gradually decreases from the middle to both ends, which is determined according to the arrangement form of the teeth inside the oral cavity. This can help the oral cavity of the patient to be easily in a natural relaxation state. The upper and lower teeth respectively bite into the upper tooth groove 102 and the lower tooth groove 101. The dental pad 1 between the upper tooth groove 102 and the lower tooth groove 101 plays a role in blocking and protecting the tongue, restricting the position of the tongue, and avoiding the risk of the tongue being injured by stretching between the upper and lower teeth.

[0027] During the treatment process, the tracheal intubation passes through the avoidance hole 5, and the tracheal intubation is tied and fixed to the fixing column 3 by means of a rope or tape to prevent the tracheal intubation from shaking or loosening. Moisture is supplemented to the oral cavity through the aerosol to relieve the discomfort caused by oral dryness. After the generation of the aerosol, water may also accumulate inside the oral cavity. At this time, the accumulated water in the oral cavity can be sucked away through the suction device to prevent the patient from choking on saliva. The saliva suction tube 6 is set as an arc tube and is consistent with the concave surface radian of the dental pad 1 to ensure that the saliva suction tube 6 can be better attached to the concave surface of the dental pad 1, and to avoid the protection device causing obvious foreign body sensation in the oral cavity during use and making the patient feel uncomfortable. Liquid inlet holes are evenly distributed on the whole of the saliva suction tube 6, so that the accumulated water inside the oral cavity can be sucked more comprehensively. The liquid suction tube 7 is detachably connected to the dental pad 1. Since there are many dead corners on the inner wall of the liquid suction tube 7 and it is not easy to clean, the detachable connection method helps to disassemble and discard the liquid suction tube 7 after use, while the dental pad 1 can be reused after disinfection.

[0028] In the solution of Embodiment 2, the pressure exerted on the dental pad 1 after the upper and lower teeth bite and the reaction force of the dental pad 1 act on the micro pressure sensor bidirectionally. A threshold is set for the pressure alarm. When the pressure signal received by the pressure alarm exceeds the threshold, an alarm is issued. At this time, the doctor can reduce the stimulation intensity and relieve the discomfort of the patient. Therefore, this device enhances the protection effect on the teeth, tongue body, etc. to a certain extent.

Claims

1. A warning oral protection device for intraoperative neuroelectrophysiological monitoring, including a dental pad, characterized in that: The dental pad is provided with upper and lower tooth grooves. The thickness of the dental pad between the upper and lower tooth grooves gradually decreases from the middle to both ends. A relief hole for the tracheal intubation to pass through is provided in the middle of the dental pad. Fixed columns are provided on the side of the dental pad facing the outside of the oral cavity. The tracheal intubation passing through the relief hole is fixed to the fixed columns using ropes or tapes.

2. The early warning oral protection device for intraoperative neuroelectrophysiological monitoring according to claim 1, characterized in that: Micro pressure sensors are provided between the bottom parts of the grooves at both ends of the upper and lower tooth grooves. The micro pressure sensors are electrically connected to a pressure alarm. The bottom part of the groove corresponding to the position of the micro pressure sensor is made of silica gel.

3. The early warning oral protection device for intraoperative neuroelectrophysiological monitoring according to claim 2, wherein: The dental pad is also provided with a sputum suction tube through hole for the sputum suction tube to pass through.

4. The early warning oral protection device for intraoperative neuroelectrophysiological monitoring according to claim 3, wherein: An aerosol tube passing through both sides of the dental pad is detachably connected to the dental pad. One end of the aerosol tube close to the concave surface of the dental pad is detachably connected to an aerosol head, and the other end of the aerosol tube is externally connected to an aerosol device.

5. The early warning oral protection device for intraoperative neuroelectrophysiological monitoring according to claim 4, wherein: The device further includes a saliva suction tube. The saliva suction tube is an arc-shaped tube that conforms to the radian of the concave surface of the dental pad. A number of liquid inlet holes are evenly distributed on the saliva suction tube. A liquid suction tube is connected to the saliva suction tube. The liquid suction tube detachably passes through both sides of the dental pad, and the liquid suction tube is externally connected to a sputum suction device.

6. The warning oral protection device for intraoperative neuroelectrophysiological monitoring according to claim 5, characterized in that: A nut is threadedly connected to the outer wall of the liquid suction tube located on the convex surface of the dental pad.

7. The warning oral protection device for intraoperative neuroelectrophysiological monitoring according to claim 6, wherein: A groove is provided at the lower end of the concave surface of the dental pad. The saliva suction tube is detachably embedded in the groove.

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