Mouth pad device for preventing tongue injury in neuroelectrophysiology during operation

By designing a mouth pad device with a tracheal opening and a tooth-tongue isolation structure, the problems of tongue biting and tracheal tube biting during surgery were solved, thus improving safety and comfort.

CN223489856UActive Publication Date: 2025-10-31XIN HUA HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
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Patent Information

Application Number
CN202422811642.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-18
Publication Date
2025-10-31
Estimated Expiration
2034-11-18

AI Technical Summary

Technical Problem

During intraoperative evoked potential monitoring, the patient's strong contraction of the masseter muscle increases the probability of tongue biting and endotracheal tube biting, posing a safety hazard.

Method used

A mouth pad device comprising an upper alveolar pad and a lower alveolar pad is designed. It has a tracheal hole for the endotracheal tube to pass through and an incision for adjusting the direction. A cavity is provided between the upper and lower alveolar pads to isolate the teeth and tongue. A U-shaped groove is used to provide protection against tongue biting, while also taking into account the fixation and adjustment of the endotracheal tube.

Benefits of technology

It effectively prevents tongue biting and endotracheal tube biting, ensuring patient safety, providing a comfortable user experience, and facilitating anesthesiologists to adjust the direction of the endotracheal tube during surgery.

✦ Generated by Eureka AI based on patent content.

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Abstract

The oral pad device comprises an oral pad body capable of being placed in the oral cavity of a patient, the oral pad body comprises an upper alveolar cavity pad and a lower alveolar cavity pad, one end of the upper alveolar cavity pad and one end of the lower alveolar cavity pad are connected with each other, and the other end of the upper alveolar cavity pad and the other end of the lower alveolar cavity pad are provided with openings. At least three tracheal holes through which a tracheal catheter can penetrate are formed in the opening at intervals, and an incision for adjusting the direction of the tracheal catheter is formed between every two adjacent tracheal holes, so that three states of fixing the left side, the middle position and the right side of the tracheal cannula are considered, and the situation that the tracheal catheter is bitten when nerve electrophysiology monitoring is carried out in an operation is prevented; a first U-shaped groove and a second U-shaped groove which are used for accommodating teeth of a patient are formed in the corresponding positions of the upper tooth socket pad and the lower tooth socket pad respectively, so that the teeth and the tongue of the patient can be isolated, and tongue bite prevention protection is provided.
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Description

Technical Field

[0001] This utility model belongs to the field of medical equipment, and more specifically relates to a mouth pad device for preventing tongue injury during surgery via neuroelectrophysiology. Background Technology

[0002] Mouth pads are typically made of soft materials such as silicone or latex. The principle behind medical mouth pads is to alleviate oral problems by reducing pressure on the mouth and teeth. When a patient bites down on the mouth pad, it distributes the biting force, reducing the burden on the teeth and jaw joint, thereby relieving pain and discomfort.

[0003] Medical mouth pads consist of an outer material, an absorbent layer, and a leak-proof layer. They are suitable for various oral problems, such as tooth wear, jaw joint pain, and sleep apnea. Customization is available to ensure optimal fit and effectiveness.

[0004] Currently, when evoked potential monitoring is performed during surgery, the masseter muscle will contract strongly, which increases the probability of tongue biting in patients and may also result in biting the endotracheal tube, posing a safety hazard. Utility Model Content

[0005] The main purpose of this utility model is to provide a mouth pad device that protects against tongue biting and prevents biting of the tracheal tube during surgery and prevents tongue injury.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A mouth pad device for intraoperative neuroelectrophysiological prevention of tongue injury includes a mouth pad body that can be inserted into the patient's oral cavity. The mouth pad body includes an upper alveolar pad and a lower alveolar pad connected to each other at one end. The other end of the upper alveolar pad and the lower alveolar pad are provided with an opening. At least three tracheal holes for endotracheal tubes to pass through are provided in the opening at intervals. An incision for adjusting the direction of the endotracheal tube is provided between adjacent tracheal holes. The upper alveolar pad and the lower alveolar pad are also provided with a first U-shaped groove and a second U-shaped groove for accommodating the patient's teeth at corresponding positions.

[0008] According to a first aspect of the present invention, a cavity for accommodating the patient's tongue is provided between the upper alveolar pad and the lower alveolar pad. The cavity is in communication with the opening. The first U-shaped groove and the second U-shaped groove are respectively located on the outside of the cavity, so as to isolate the patient's teeth from the tongue.

[0009] According to a first aspect of the present invention, the upper alveolar pad and the lower alveolar pad are the same size, and the first U-shaped groove and the second U-shaped groove are staggered.

[0010] According to a first aspect of the present invention, the width of the first U-shaped groove is greater than the width of the second U-shaped groove.

[0011] According to a first aspect of the present invention, the depth of the first U-shaped groove is the same as the depth of the second U-shaped groove.

[0012] According to a first aspect of the present invention, the opening is further provided with a filling portion for supporting the tracheal tube, and the opening includes a middle portion for setting the tracheal orifice and interlocking portions respectively provided at both ends of the middle portion.

[0013] According to a first aspect of the present invention, the height of the two ends of the middle portion gradually decreases towards the occlusal portion.

[0014] According to a first aspect of the present invention, the filling part is a soft elastic material component.

[0015] According to a first aspect of the present invention, the upper end surface of the upper alveolar pad and the lower end surface of the lower alveolar pad are respectively provided with inclined surfaces to facilitate patient biting.

[0016] According to a first aspect of the present invention, the included angle between the two inclined planes is less than 45°.

[0017] One of the above-described technical solutions of this utility model has at least one of the following advantages or beneficial effects:

[0018] This invention provides protection against tongue biting by placing the mouth pad body into the patient's mouth and isolating the patient's teeth and tongue through the first and second U-shaped grooves. By providing at least three tracheal holes at one end of the upper and lower alveolar pads for the endotracheal tube to pass through, it accommodates three states of endotracheal tube fixation: left, middle, and right, preventing the endotracheal tube from being bitten during intraoperative neurophysiological monitoring. Furthermore, by making incisions between adjacent tracheal holes, it is convenient for the physician to adjust the direction of the endotracheal tube during the operation. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0020] Appendix Figure 1 This is an overall structural diagram of one embodiment of the present utility model;

[0021] Appendix Figure 2 This is a rear view of one embodiment of the present invention;

[0022] Appendix Figure 3 This is a bottom view of one embodiment of the present invention;

[0023] Appendix Figure 4 This is a side view of the mouth pad body according to an embodiment of the present utility model. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" and "second" may explicitly or implicitly include one or more features.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection or a connection that can communicate with each other; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements, an indirect connection, or an interaction between two elements.

[0029] The following disclosure provides many different implementation methods or examples for different solutions to implement this utility model.

[0030] See attached document Figure 1 To be continued Figure 4As shown, a mouth pad device for preventing tongue injury during intraoperative neuroelectrophysiology includes a mouth pad body 1 that can be placed in the patient's mouth. The mouth pad body 1 includes an upper alveolar pad 11 and a lower alveolar pad 12 that are fixedly connected at one end. The material can be silicone or latex. A first U-shaped groove 6 and a second U-shaped groove 7 for accommodating the patient's teeth are respectively provided at corresponding positions of the upper alveolar pad 11 and the lower alveolar pad 12.

[0031] In one embodiment of this utility model, the size of the mouth pad body 1 can be set according to the specific situation of the patient. That is, the overall size of the upper alveolar pad 11 and the lower alveolar pad 12 can be selected for use by adults or children, and the arc and length of the first U-shaped groove 6 and the second U-shaped groove 7 used to accommodate the patient's teeth also need to be set to match the use by adults or children.

[0032] In one embodiment of this utility model, the upper end surface of the upper alveolar pad 11 and the lower end surface of the lower alveolar pad 12 are respectively provided with inclined surfaces 8 to facilitate patient biting. The included angle between the two inclined surfaces 8 is less than 45°, so as to better fit the oral cavity curve, provide a comfortable user experience, and reduce patient discomfort.

[0033] In one embodiment of this utility model, an opening 3 is provided at the other end of the upper alveolar pad 11 and the lower alveolar pad 12. Three tracheal holes 4 for tracheal tubes to pass through are provided at intervals in the opening 3. The opening 3 includes a middle part for setting and installing the three tracheal holes 4 and occlusal parts respectively provided at both ends of the middle part. The height of the two ends of the middle part is set to gradually decrease to fit the patient's mouth shape better and facilitate the insertion of this mouth pad device.

[0034] In one embodiment of this utility model, the design of the three tracheal holes 4 takes into account factors such as preventing tracheal tube displacement / dislodgement. The tracheal holes 4 at both ends are respectively set in the interlocking part, and the tracheal hole 4 in the middle is set in the middle part. In order to prevent the tracheal tube from shifting, dislodging, or going too deep, 3M tape or the like can be used to fix the trachea at both ends to the leftmost / rightmost part of the opening 3.

[0035] In one embodiment of this utility model, the diameter of the tracheal holes 4 is smaller than the height of the opening 3, which facilitates the insertion of the tracheal tube and ensures that the tracheal holes 4 are arranged sequentially along the width direction of the opening 3, taking into account the three states of tracheal tube fixation on the left, middle and right sides.

[0036] In one embodiment of this utility model, incisions 9 for adjusting the direction of the endotracheal tube are respectively provided between adjacent tracheal holes 4, so that the endotracheal tube can be moved within the incisions 9, ensuring that the anesthesiologist can adjust the direction of the endotracheal tube during the operation.

[0037] In one embodiment of this utility model, a filling part 5 is also provided in the opening 3. The filling part 5 is a soft elastic material component, which can ensure that the tracheal hole 4 is located behind the opening 3. When the tracheal tube is inserted into the tracheal hole 4, the filling part 5 provides support for the tracheal tube, preventing the tracheal tube from being bitten during the neurophysiological monitoring during the operation. Since the end of the tracheal tube is a connector head, which is larger than the diameter of the trachea, the opening 3 can be cut according to the incision 9 during actual operation, so that the opening 3 can be pried open so that the mouth pad device can be put in after the tracheal tube is inserted.

[0038] In one embodiment of this invention, the incidence of surgical tongue biting is relatively high in patients undergoing motor evoked potential monitoring who are in the prone position, and this requires special attention. Studies have shown that shallow anesthesia depth is one of the risk factors. Vigorous movement of patients during transcranial electrical stimulation motor evoked potential monitoring is closely related to biting, and high-intensity transcranial stimulation may increase the risk of biting.

[0039] Therefore, a cavity for accommodating the patient's tongue is provided between the upper alveolar pad 11 and the lower alveolar pad 12. This cavity is connected to the opening 3. The first U-shaped groove 6 and the second U-shaped groove 7 are located on the outside of the cavity, so as to isolate the patient's teeth from the tongue, thereby providing protection against tongue biting.

[0040] In one embodiment of this utility model, the upper alveolar pad 11 and the lower alveolar pad 12 are the same size, and the first U-shaped groove 6 and the second U-shaped groove 7 are staggered, with the first U-shaped groove 6 located above and in front of the second U-shaped groove 7, which is more in line with the structure of the upper and lower teeth in the oral cavity.

[0041] In one embodiment of this utility model, the depth of the first U-shaped groove 6 is the same as the depth of the second U-shaped groove 7, and the width of the first U-shaped groove 6 is greater than the width of the second U-shaped groove 7. Therefore, after the patient inserts this mouth pad device into their mouth, sufficient width is left for the upper teeth, ensuring that the patient has a certain degree of comfort when opening and closing their mouth.

[0042] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A mouth pad device for preventing tongue injury via intraoperative neuroelectrophysiological testing, characterized in that, The device includes a mouth pad body (1) that can be placed in the patient's mouth. The mouth pad body (1) includes an upper alveolar pad (11) and a lower alveolar pad (12) connected to each other at one end. The other end of the upper alveolar pad (11) and the lower alveolar pad (12) is provided with an opening (3). At least three tracheal holes (4) for tracheal tubes to pass through are provided in the opening (3) at intervals. An incision (9) for adjusting the direction of the tracheal tube is provided between adjacent tracheal holes (4). The upper alveolar pad (11) and the lower alveolar pad (12) are also provided with a first U-shaped groove (6) and a second U-shaped groove (7) for accommodating the patient's teeth at corresponding positions.

2. The intraoperative neuroelectrophysiological anti-tongue injury mouth pad device according to claim 1, characterized in that: A cavity for accommodating the patient's tongue is provided between the upper alveolar pad (11) and the lower alveolar pad (12). The cavity is connected to the opening (3). The first U-shaped groove (6) and the second U-shaped groove (7) are located on the outside of the cavity, so as to isolate the patient's teeth from the tongue.

3. The intraoperative neuroelectrophysiological anti-tongue injury mouth pad device according to claim 2, characterized in that: The upper alveolar pad (11) and the lower alveolar pad (12) are the same size, and the first U-shaped groove (6) and the second U-shaped groove (7) are staggered.

4. The intraoperative neuroelectrophysiological tongue-injury prevention mouth pad device according to claim 3, characterized in that: The width of the first U-shaped groove (6) is greater than the width of the second U-shaped groove (7).

5. The intraoperative neuroelectrophysiological anti-tongue injury mouth pad device according to claim 3, characterized in that: The depth of the first U-shaped groove (6) is the same as the depth of the second U-shaped groove (7).

6. The intraoperative neuroelectrophysiological anti-tongue injury mouth pad device according to claim 1, characterized in that: The opening (3) is also provided with a filling part (5) to support the tracheal tube. The opening (3) includes a middle part for setting the tracheal hole (4) and an interlocking part respectively provided at both ends of the middle part.

7. The intraoperative neuroelectrophysiological anti-tongue injury mouth pad device according to claim 6, characterized in that: The height of the two ends of the middle part gradually decreases towards the biting part.

8. The intraoperative neuroelectrophysiological anti-tongue injury mouth pad device according to claim 6, characterized in that: The filling part (5) is a soft elastic material component.

9. The intraoperative neuroelectrophysiological anti-tongue injury mouth pad device according to claim 1, characterized in that: The upper end face of the upper alveolar pad (11) and the lower end face of the lower alveolar pad (12) are respectively provided with inclined surfaces (8) to facilitate the patient's biting.

10. The intraoperative neuroelectrophysiological anti-tongue injury mouth pad device according to claim 9, characterized in that: The included angle between the two inclined planes (8) is less than 45°.