Bite block device for nerve electrophysiology monitoring in operation

Abstract

The utility model provides a bite block device for nerve electrophysiology monitoring in an operation, which comprises a lower bite block and an upper bite block, a channel groove for installing a trachea channel is arranged in the lower bite block, and lining plates are oppositely arranged on two sides of the channel groove in the lower bite block; the lower surface of the lower bite block is provided with a lower tooth groove, and the upper surface of the upper bite block is provided with an upper tooth groove. Through the arrangement of the base plate, the upper tooth cushion and the lower tooth cushion can be in full contact with molar teeth in the cavity, so that the pressure borne by incisor teeth is reduced, and the incisor teeth of a patient are prevented from being damaged; the trachea channel is arranged in the middle of the bite block, the inner lining plate is arranged on the outer side of the trachea channel, under protection of the inner lining plate, the trachea can be prevented from being bitten by a patient to be flat, normal use of the trachea is guaranteed, the trachea channel has a certain length and is arranged in the middle of the bite block, and after the whole bite block is arranged in the oral cavity of the patient, the inner trachea channel can press the tongue. The tongue is prevented from entering the space between the upper teeth and the lower teeth and is prevented from being bitten.

Description

Technical Field

[0001] The utility model belongs to the field of medical technology, and particularly relates to a dental pad device for intraoperative neuroelectrophysiological monitoring. Background Art

[0002] During spinal major surgeries in the orthopedic field and spinal cord surgeries in the neurosurgical field, intraoperative neuroelectrophysiological monitoring is carried out throughout the process to avoid iatrogenic spinal cord injury, which has become a routine monitoring method in spinal surgery and neurosurgery. It is widely used especially in spinal deformity correction, spinal tumor, and spinal cord mass resection surgeries. Although intraoperative neurophysiological monitoring can improve the safety of surgical operations, it also brings adverse events related to oral injuries.

[0003] During the monitoring of motor evoked potentials, due to transcranial electrical stimulation causing tonic contraction of the masseter muscle, the patient bites the tongue unconsciously, the upper and lower teeth bite too hard resulting in tooth fracture and loss. In some patients, the trachea or catheter may even be bitten flat, thus affecting mechanical ventilation and leading to serious consequences. Summary of the Utility Model

[0004] In order to solve the above technical problems, the utility model provides a dental pad device for intraoperative neuroelectrophysiological monitoring, and the technical scheme adopted is as follows:

[0005] A dental pad device for intraoperative neuroelectrophysiological monitoring includes a lower dental pad and an upper dental pad. A channel groove for installing a trachea channel is arranged inside the lower dental pad, and lining plates are oppositely arranged on both sides of the channel groove in the lower dental pad; a lower tooth groove is arranged on the lower surface of the lower dental pad, and an upper tooth groove is arranged on the upper surface of the upper dental pad.

[0006] Further, the trachea channel is made of flexible silica gel tube, which can play a certain guiding role for the trachea while reducing the irritation to the patient's oral cavity.

[0007] Further, the lining plate is made of a high molecular resin plate, and the inner side surface of the lining plate in the installed state is attached to the outer surface of the trachea channel, which can play a role in supporting the trachea channel.

[0008] Further, lower cushion plates are arranged on both sides of the lower tooth groove corresponding to the patient's molar teeth, and upper cushion plates are arranged on both sides of the upper tooth groove corresponding to the patient's molar teeth. By raising the position corresponding to the molar teeth in the dental pad, the force on the incisors can be reduced.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] In the present utility model, backing plates are provided inside both the upper and lower dental pads, enabling the upper and lower dental pads to fully contact the molar teeth in the cavity, with the incisors slightly suspended, thereby reducing the pressure on the incisors and preventing the patient's front teeth from being damaged. Additionally, a lining plate is provided on the outer side of the tracheal channel, which can support the tracheal channel and protect it from being bitten flat by the patient, ensuring the normal use of the trachea.

[0011] Furthermore, the tracheal channel provided in the present utility model has a certain length and is disposed at the middle position of the dental pad. After the dental pad is entirely placed in the patient's oral cavity, the internal tracheal channel can press down on the tongue, preventing the tongue from entering between the upper and lower teeth and avoiding the tongue from being bitten. Brief Description of the Drawings

[0012] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0013] Figure 2 is a schematic diagram of the structure of the lower dental alveolus and the lower dental pad of the present utility model;

[0014] Figure 3 is a schematic diagram of the structure of the lining plate of the present utility model.

[0015] In the figures:

[0016] 1 - lower dental pad, 11 - lower dental alveolus, 12 - lower backing plate, 13 - channel groove, 2 - upper dental pad, 21 - upper dental alveolus, 22 - upper backing plate, 3 - tracheal channel, 4 - lining plate. Detailed Embodiment

[0017] To enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below. Apparently, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0018] As shown in the Figures 1-3 drawings.

[0019] A dental pad device for intraoperative neuroelectrophysiological monitoring includes a lower dental pad 1 and an upper dental pad 2. Inside the lower dental pad 1, there is a channel groove 13 for installing a tracheal channel 3. When the dental pad is entirely placed in the patient's oral cavity, the trachea can pass through the tracheal channel 3. The tracheal channel 3 is made of flexible silicone tube. Furthermore, since the tracheal channel 3 has a certain length and is disposed at the middle position of the dental pad, it can resist the tongue and prevent the tongue from being bitten.

[0020] Furthermore, inner lining plates 4 are disposed oppositely on both sides of the channel groove 13 in the lower dental pad 1. The inner lining plates 4 are made of polymer resin plates. The inner side surfaces of the inner lining plates 4 are attached to the outer surfaces of the tracheal channels 3, which can support the tracheal channels 3 and prevent the trachea from being bitten flat by the patient under the protection of the inner lining plates 4, ensuring the normal use of the trachea.

[0021] A lower tooth groove 11 is provided on the lower surface of the lower dental pad 1. Through the lower tooth groove 11, the lower dental pad 1 can be clamped outside the lower teeth of the patient. Lower backing plates 12 are provided on both sides of the lower tooth groove 11 corresponding to the molars of the patient. An upper tooth groove 21 is provided on the upper surface of the upper dental pad 2. Through the upper tooth groove 21, the upper dental pad 2 can be clamped outside the upper teeth of the patient. Upper backing plates 22 are also provided at positions corresponding to the molars on both sides of the upper tooth groove 21.

[0022] Through the above structural settings, after the dental pads are integrally placed in the patient's oral cavity, the positions of the molars can be raised. During neuroelectrophysiological monitoring, due to transcranial electrical stimulation causing the masseter muscle to contract strongly, the upper and lower teeth will bite together from time to time. Backing plates are provided in both the upper and lower dental pads, enabling the upper and lower dental pads to fully contact the molars in the cavity, and the incisors are slightly suspended, thereby reducing the pressure on the incisors and preventing the patient's front teeth from being damaged.

[0023] During use, just place the whole device into the patient's oral cavity, making the lower tooth groove 11 in the lower dental pad 1 correspond to the lower teeth in the patient's oral cavity, and the upper tooth groove 21 in the upper dental pad 2 correspond to the upper teeth in the patient's oral cavity. When the upper and lower teeth bite, the upper dental pad 1 and the lower dental pad 2 can buffer the teeth, avoiding excessive biting between the upper and lower teeth and damaging the teeth.

[0024] Using the technical solution of the present utility model, or a person skilled in the art designing a similar technical solution inspired by the technical solution of the present utility model and achieving the above technical effects shall fall within the protection scope of the present utility model.

Claims

1. A dental pad device for intraoperative neuroelectrophysiological monitoring, comprising a lower dental pad (1) and an upper dental pad (2), characterized in that: Inside the lower dental pad (1), there is a channel groove (13) for installing the tracheal channel (3). On both sides of the channel groove (13) in the lower dental pad (1), there are inner lining plates (4) arranged oppositely; on the lower surface of the lower dental pad (1), there is a lower tooth groove (11), and on the upper surface of the upper dental pad (2), there is an upper tooth groove (21).

2. The dental pad device for intraoperative neuroelectrophysiological monitoring according to claim 1, wherein: The tracheal channel (3) is made of a flexible silica gel tube.

3. The dental pad device for intraoperative neuroelectrophysiological monitoring according to claim 1, characterized in that: The inner lining plate (4) is made of a high molecular resin plate.

4. The dental pad device for intraoperative neuroelectrophysiological monitoring according to claim 3, wherein: In the installed state, the inner side surface of the inner lining plate (4) fits with the outer surface of the tracheal channel (3).

5. The dental pad device for intraoperative neuroelectrophysiological monitoring according to claim 1, wherein: On both sides of the lower tooth groove (11) and corresponding to the patient's molar teeth, there are lower backing plates (12) provided.

6. The dental pad device for intraoperative neuroelectrophysiological monitoring according to claim 1, wherein: On both sides of the upper tooth groove (21) and corresponding to the patient's molar teeth, there are upper backing plates (22) provided.

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