Bite block device for trachea cannula

Abstract

The invention relates to the technical field of medical instruments, in particular to a bite block device for tracheal intubation, which comprises an occlusion tube, a first positioning tube and a second positioning tube, and the occlusion tube is of an elliptical structure; an occlusion mechanism sleeving the peripheries of the teeth is arranged at the position, close to one end, of the periphery of the occlusion pipe, and an abutting mechanism moving up and down along with opening and closing of the teeth is arranged on the occlusion mechanism; a sputum storage box is detachably arranged between the inner wall of the occlusion tube and the second positioning tube; liquid guide mechanisms for guiding saliva above the occlusion pipe are arranged on the two sides of the occlusion pipe, and sputum suction mechanisms are arranged on the two sides of the bottom of the occlusion pipe. Through the arrangement of the abutting mechanism, it can be guaranteed that the occlusal mechanism is always arranged on the peripheries of teeth of a patient in a sleeving mode, the falling condition is avoided, the occlusal mechanism can be stable without being arranged on the head of the patient in a sleeving mode, the comfort of the patient is improved, saliva generated in the mouth of the patient can be collected in time through the liquid guide mechanism and the sputum suction mechanism, and the patient is more comfortable. Saliva is prevented from being accumulated in the oral cavity of the patient and flowing out of the mouth of the patient.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a teeth pad device for endotracheal intubation. Background Art

[0002] Endotracheal intubation is a method of inserting a special endotracheal tube into the trachea or bronchus through the oral or nasal cavity and the glottis, providing the best conditions for airway patency, ventilation and oxygen supply, and airway suction. It is an important measure to rescue patients with respiratory dysfunction. Therefore, endotracheal intubation is a commonly used tube in medical treatment, but it has defects when inserted into the patient's mouth.

[0003] For example, the bite pad device for tracheal intubation disclosed in the Chinese patent with publication number CN117138188A, in which the straight barrel portion of the bite pad and the tracheal tube are inserted from the patient's mouth, and then an elastic bandage is put on the patient's head, and a bite section is provided in the straight barrel portion of the pressure pad to increase its hardness and avoid being bitten.

[0004] However, the following two situations may occur when using elastic bandages for wrapping: The tight sleeve is placed on the patient's head: This will cause binding marks on the patient's face during long-term use, which will cause discomfort to the patient; Loosely covering the patient's head: In this case, the pressure pad will gradually become loose during long-term use, which may easily cause the pressure pad to fall off.

[0005] Furthermore, when using the method described in the comparative document, since the patient keeps his mouth open for a long time, a lot of saliva will be produced in the patient's mouth. Although the sputum in the patient's mouth can be sucked by inserting a suction device into the through hole, medical staff need to regularly insert the suction device into the through hole for use, which requires taking out other tubes connected to the through hole and then absorbing the sputum in the patient's mouth. The replacement is cumbersome and increases the labor intensity of medical staff. If the patient's saliva is too much, if it is not sucked out in time, the saliva will accumulate in the patient's mouth and then flow out of the patient's mouth, causing discomfort to the patient.

[0006] Therefore, there is an urgent need for a comfortable dental pad device that can collect the saliva produced in the patient's mouth. Summary of the invention

[0007] The present invention aims at the deficiencies in the prior art and provides the following technical solutions: A bite pad device for endotracheal intubation comprises a bite tube, a first positioning tube and a second positioning tube, wherein the bite tube is an elliptical structure, the first positioning tube and the second positioning tube are both fixedly arranged in the bite tube, and the first positioning tube is arranged on both sides of the second positioning tube; a bite mechanism is arranged on the periphery of the bite tube near one end and is sleeved on the periphery of the teeth, and an abutment mechanism is arranged on the bite mechanism and moves up and down with the opening and closing of the teeth; a sputum storage box is detachably arranged between the inner wall of the bite tube and the second positioning tube; liquid guide mechanisms are arranged on both sides of the bite tube for guiding saliva above the bite tube, and a liquid guide hole connected to the sputum storage box is opened on the bite tube in the liquid guide mechanism; sputum suction mechanisms are arranged on both sides of the bottom of the bite tube for sucking saliva in the mouth into the sputum storage box.

[0008] As an improvement of the above technical solution, the bite mechanism includes a bite sleeve and a flexible rubber sleeve. The bite sleeve is fixedly sleeved on the periphery of the bite tube near one end. The bite sleeve is an arc-shaped structure and is sleeved on the periphery of the teeth between adjacent ones. The flexible rubber sleeve is fixedly connected between adjacent bite sleeves.

[0009] As an improvement of the above technical solution, the abutment mechanism includes an abutment pad and a first spring. The bite sleeve is provided with a limiting groove for the abutment pad to slide up and down. The first spring is fixedly arranged between the bottom of the limiting groove and the abutment pad.

[0010] As an improvement of the above technical solution, the liquid guide mechanism includes a stop pad and a liquid guide plate. The stop pad is an arc-shaped structure fixedly arranged on both sides of the occlusal tube, and the liquid guide plate is fixedly arranged between the stop pad and the occlusal tube. Both sides of the liquid guide plate are provided with liquid guide grooves with an arc-shaped structure.

[0011] As an improvement of the above technical solution, the liquid guide hole is located at the bottom of the liquid guide groove, and a one-way valve is fixedly provided on the inner wall of the liquid guide hole on the sputum storage box.

[0012] As an improvement of the above technical solution, the sputum suction mechanism includes a sputum suction tube and a limiting sleeve. The limiting sleeve is fixedly arranged at the bottom of the occlusal tube, and the limiting sleeve is detachably arranged on the periphery of the sputum suction tube. The cross-section of the sputum suction tube is an L-shaped structure. The bottom end of the sputum suction tube passes through the occlusal tube, and a second spring is fixedly arranged between the top end and the inner wall of the sputum storage box. A micro sputum suction pump is fixedly arranged on the inner wall of the sputum suction tube.

[0013] As an improvement of the above technical solution, a branch pipe is threadedly connected to the inner wall of the bottom end of the sputum suction tube.

[0014] As an improvement of the above technical solution, one side of the sputum storage box is sealed and connected with a sealing card cover.

[0015] As an improvement of the above technical solution, a support reinforcement pad is fixedly arranged between the first positioning tube, the second positioning tube and the occlusal tube.

[0016] Beneficial effects of the present invention: By setting the abutment mechanism, it can ensure that the occlusal mechanism is always mounted on the periphery of the patient's teeth to avoid falling off, and it does not need to be mounted on the patient's head to be stable and not fall off, so as to prevent the occurrence of binding marks, thereby improving the patient's comfort. The saliva produced in the patient's mouth can be collected in time through the liquid guide mechanism and the sputum suction mechanism to avoid the accumulation of saliva in the patient's oral cavity and the outflow of saliva from the patient's mouth, thereby further improving comfort. In addition, there is no need for medical staff to frequently replace the sputum suction equipment, thereby reducing labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention; Figure 2 It is a rear-view stereoscopic structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the structure of the bite tube of the present invention; Figure 4 It is a schematic diagram of the structure of the bite sleeve of the present invention; Figure 5 It is an enlarged view of the connection structure between the stop pad and the liquid guide plate of the present invention; Figure 6 It is a schematic diagram of the enlarged structure of the abutment pad of the present invention; Figure 7 This is an enlarged structural schematic diagram of the sputum storage box of the present invention; Figure 8 It is an enlarged schematic diagram of the connection between the sputum suction tube and the branch tube of the present invention.

[0018] Figure numerals: 1. occlusal tube; 11. first positioning tube; 12. second positioning tube; 13. support reinforcement pad; 14. stop pad; 15. liquid guide plate; 151. liquid guide groove; 16. liquid guide hole; 2. occlusal sleeve; 21. limiting groove; 22. abutment pad; 23. first spring; 24. flexible rubber sleeve; 3. sputum storage box; 31. sealing card cover; 4. sputum suction tube; 41. branch tube; 42. limiting sleeve; 421. second spring. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] Please refer to Figure 1-Figure 8 As shown, the present invention provides a mouthpiece device for endotracheal intubation, comprising a bite tube 1, a first positioning tube 11 and a second positioning tube 12, wherein the bite tube 1 is an elliptical structure, the first positioning tube 11 and the second positioning tube 12 are both fixedly arranged in the bite tube 1, and the first positioning tube 11 is arranged on both sides of the second positioning tube 12; A bite mechanism is provided near one end of the periphery of the bite tube 1 and is sleeved on the periphery of the teeth. The bite mechanism is provided with an abutment mechanism that moves up and down as the teeth open and close. A sputum storage box 3 is detachably provided between the inner wall of the occlusal tube 1 and the second positioning tube 12; Liquid guide mechanisms for guiding saliva above the bite tube 1 are arranged on both sides of the bite tube 1, and a liquid guide hole 16 connected to the sputum storage box 3 is opened on the bite tube 1 in the liquid guide mechanism; Both sides of the bottom of the bite tube 1 are provided with sputum suction mechanisms for sucking saliva in the mouth into the sputum storage box 3.

[0021] In the present case, the bite tube 1 is arranged into an elliptical structure, and after the bite tube 1 is inserted into the patient's mouth, it is convenient to support the patient's mouth. In the prior art, tubes are arranged on both sides of the first positioning tube 11, and the arrangement of the prior art is equivalent to an ellipse. Therefore, the present invention arranges the bite tube 1 as a whole into an elliptical shape, which is suitable for normal use by patients and can better protect the inserted endotracheal tube.

[0022] The combination of the straight tube of the bite block and the tracheal tube recorded in the patent document with announcement number CN117138188A forms a structure similar to an elliptical structure, wherein the first positioning tube 11 recorded in the present invention is equivalent to the straight tube of the bite block in the comparative document, and the second positioning tube 12 recorded in the present invention is equivalent to the avoidance hole for inserting the tracheal tube in the comparative document. After the tracheal tube is inserted, a shape similar to an ellipse can be formed between the straight tube of the bite block and the straight tube, which is consistent with the bite tube 1 in the present invention. The first positioning tube 11 and the second positioning tube 12 provided in the present invention are used to position the tracheal tube inserted into the patient's body. The present invention sets the bite tube 1 into an elliptical shape so that the bite tube 1 can be directly inserted into the patient's mouth for use, and setting it into an elliptical shape can better fit the situation in the patient's mouth. Generally, the space in the mouth is elliptical, and setting it into an elliptical shape can better adapt to the patient's use and improve the patient's comfort.

[0023] Supplementary explanation: By adopting three channels, a better plug-in position can be provided. The three channels are two second positioning tubes 12 and one first positioning tube 11. When three endotracheal tubes are needed, the three endotracheal tubes can be inserted into the first positioning tube 11 and the second positioning tube 12 respectively. When two endotracheal tubes need to be inserted, a monitoring device can be inserted into one channel to monitor the status of the patient's oral cavity in real time. The three channels can meet different usage conditions and improve the scope of application. The device can be inserted into the patient's body to absorb the sputum in the patient's body.

[0024] Among them, a bite mechanism is arranged on the periphery of the bite tube 1 and is sleeved on the periphery of the patient's teeth. The patient's teeth can be wrapped by the bite mechanism, and an abutment mechanism is arranged on the bite mechanism and moves up and down with the opening and closing of the patient's teeth. The abutment mechanism can move with the opening and closing of the patient's mouth. When the bite tube 1 is inserted into the patient's mouth for a long time, the patient's mouth will move due to physical reasons, that is, the mouth is open and then restored to its original state. This opening and closing situation will cause the teeth to be in an open and closed state. Therefore, the setting of the abutment mechanism can prevent the patient's teeth from always being in the bite mechanism to prevent the bite mechanism from falling off after being separated from the teeth. The use of the abutment mechanism can enable the patient to open his mouth and move at will, avoid the patient's mouth being in a state for a long time and causing discomfort, thereby improving the patient's comfort.

[0025] Among them, the setting of the liquid guide mechanism facilitates the guidance of the saliva above the bite tube 1, so that the saliva flows toward the liquid guide hole 16, and then enters the sputum storage box 3 for collection, and the setting of the sputum suction mechanism can absorb the saliva below the bite tube 1 and absorb the saliva into the sputum storage box 3.

[0026] Supplementary explanation: The bite tube 1 is an elliptical structure, so the upper part of the bite tube 1 is an arc structure. When saliva is produced in the mouth, especially when the patient lies on the bed, the saliva produced above the mouth will drip on the top of the bite tube 1. In the elliptical state, the saliva will flow on the bite tube 1, and then under the action of the liquid guide mechanism, the saliva can be gathered to the liquid guide hole 16, and then enter the sputum storage box 3 through the liquid guide hole 16.

[0027] By setting the abutment mechanism, it can ensure that the occlusal mechanism is always mounted on the periphery of the patient's teeth to avoid falling off, and it does not need to be mounted on the patient's head to be stable and not fall off, so as to prevent the occurrence of binding marks, thereby improving the patient's comfort. The saliva produced in the patient's mouth can be collected in time through the liquid guide mechanism and the sputum suction mechanism to avoid the accumulation of saliva in the patient's oral cavity and the outflow of saliva from the patient's mouth, thereby further improving comfort. In addition, there is no need for medical staff to frequently replace the sputum suction equipment, thereby reducing labor intensity.

[0028] like Figure 1 and Figure 4 As shown, the bite mechanism includes a bite sleeve 2 and a flexible rubber sleeve 24. The bite sleeve 2 is fixedly sleeved on the periphery of the bite tube 1 near one end. The bite sleeve 2 is an arc-shaped structure and is sleeved on the periphery of the teeth between adjacent ones. The flexible rubber sleeve 24 is fixedly connected between adjacent bite sleeves 2.

[0029] Through the setting of the bite sleeve 2, it can be installed on the outside of the patient's teeth. During use, the bite sleeve 2 installed on the outside of the patient's teeth can fix the bite tube 1. The bite tube 1 is stabilized by the patient's teeth to prevent it from falling during use. The flexible rubber sleeve 24 can avoid hard contact with the patient's teeth to prevent damage to the teeth when the patient's teeth are in an open or closed state.

[0030] Supplementary explanation: A ring is fixedly arranged between the bite sleeves 2 and is sleeved on the outer periphery of the bite tube 1. The ring and the bite sleeve 2 can be arranged to be integrally formed, and the cross-section between the bite sleeve 2 and the ring is an I-shaped structure. This arrangement can ensure the integral forming of the bite sleeve 2 and the ring to prevent the bonding from breaking. Among them, the flexible rubber sleeve 24 is sleeved on the outer periphery of the ring, so that the flexible rubber sleeve 24 can be in flexible contact with the patient's teeth to prevent the patient from damaging the teeth due to biting.

[0031] Supplementary explanation of the bite sleeve 2: The bite sleeve 2 is set in an arc-shaped structure, which can match the patient's teeth and is conveniently set on the periphery of the patient's teeth. The bite sleeve 2 can be set in two states, namely: The first type: the one-piece molding state described above. In this state, cracking can be prevented during use, but there is a situation where it cannot be highly adapted to the patient's tooth condition. During use, it may shake due to the patient's tooth condition. Although there will be a small degree of shaking, it is convenient for the patient's teeth to open and close, and the comfort is relatively high; The second type: one of the two bite sleeves 2 is slidably connected to the ring described above, and then the bite sleeve 2 is fixed to the ring by a fixing method in the prior art. There are many ways to fix it, for example: using adhesive bonding, which belongs to the prior art and will not be described in detail in this application. This method can be highly adapted to the patient's dental condition, can clamp the bite sleeve 2 on the periphery of the patient's teeth, reduce the distance between the bite sleeve 2 and the teeth, and avoid a large range of shaking. The comfort is lower than the first type, and it can be used selectively according to the patient's specific situation.

[0032] like Figure 4 and Figure 6 As shown, the abutting mechanism includes an abutting pad 22 and a first spring 23 . A limiting groove 21 is provided on the bite sleeve 2 for the abutting pad 22 to slide up and down. The first spring 23 is fixedly arranged between the bottom of the limiting groove 21 and the abutting pad 22 .

[0033] By setting the first spring 23, the abutment pad 22 can move with the opening and closing of the patient's teeth. The principle used by the first spring 23 is the principle of the orthodontic spring brace. The first spring 23 can be deformed by the movement of the teeth to continuously provide a gentle correction force. This can provide comfort for the patient. The abutment pad 22 moves with the opening and closing of the teeth, which can prevent the teeth from escaping from the restriction of the abutment pad 22, so that the teeth are always mounted on the occlusal sleeve 2 to prevent them from falling during use, thereby improving safety. The inserted endotracheal tube can be firmly secured without the need for bundling, thereby improving comfort.

[0034] Supplementary explanation: After use, the medical staff can assist in pressing the abutment pad 22, the patient opens his mouth, and the medical staff moves the abutment pad 22 to store it in the limiting groove 21. At this time, it is convenient to expose the patient's teeth to facilitate the removal of the device. A notch can be set on the abutment pad 22, and the notch is located outside the oral cavity. This makes it convenient for the medical staff to press the abutment pad 22 through the notch and remove it from the patient's mouth.

[0035] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the liquid guiding mechanism includes a stop pad 14 and a liquid guiding plate 15. The stop pad 14 is an arc-shaped structure fixedly arranged on both sides of the occlusal tube 1. The liquid guiding plate 15 is fixedly arranged between the stop pad 14 and the occlusal tube 1. Both sides of the liquid guiding plate 15 are provided with liquid guiding grooves 151 with an arc-shaped structure.

[0036] The liquid guiding hole 16 is located at the bottom of the liquid guiding groove 151 , and a one-way valve is fixedly arranged on the inner wall of the liquid guiding hole 16 on the sputum storage box 3 .

[0037] By setting the stop pad 14, Figure 1 The saliva produced above the middle occlusal tube 1 is blocked. Since the occlusal tube 1 is an elliptical structure, the saliva can be in a flowing state. At this time, the saliva can be guided toward the bottom of the liquid guiding groove 151 through the action of the liquid guiding groove 151, so that the saliva gathers at the bottom of the liquid guiding groove 151. At this time, the saliva gathered at the bottom of the liquid guiding groove 151 can enter the sputum storage box 3 through the liquid guiding hole 16 to collect the saliva. A one-way valve is provided in the liquid guiding hole 16 on the sputum storage box 3 to prevent the saliva entering the sputum storage box 3 from entering the patient's mouth again.

[0038] When using, use Figure 1 Insert the bite tube 1 into the patient's oral cavity in the state of Figure 2 The style shown in the figure, so that the saliva located above the bite tube 1 can be gathered to the bottom of the liquid guide groove 151 through the liquid guide groove 151, so as to be collected. Figure 5As shown, the setting state of the liquid guiding groove 151 can be seen, which is an arc-shaped structure to facilitate guiding saliva to flow to the bottom of the liquid guiding groove 151.

[0039] like Figure 3 , Figure 7 and Figure 8 As shown, the sputum suction mechanism includes a sputum suction tube 4 and a limiting sleeve 42. The limiting sleeve 42 is fixedly arranged at the bottom of the occlusal tube 1. The limiting sleeve 42 is detachably sleeved on the periphery of the sputum suction tube 4. The cross-section of the sputum suction tube 4 is an L-shaped structure. The bottom end of the sputum suction tube 4 passes through the occlusal tube 1. A second spring 421 is fixedly arranged between the top end and the inner wall of the sputum storage box 3. A micro sputum suction pump is fixedly arranged on the inner wall of the sputum suction tube 4.

[0040] By setting the second spring 421 and the cross-section of the sputum suction tube 4 being an L-shaped structure, when it is needed, by pressing the bottom end of the sputum suction tube 4, the sputum storage box 3 is plugged into the plug-in space surrounded by the second positioning tube 12 and the bite tube 1. As the sputum storage box 3 is pushed, the sputum suction tube 4 can be communicated with the limiting sleeve 42. At this time, under the action of the second spring 421, the elastic force can be instantly released to push the sputum suction tube 4 into the limiting sleeve 42, thereby limiting the sputum storage box 3 to prevent the sputum storage box 3 from falling. At this time, the liquid guide hole 16 on the sputum storage box 3 is communicated with the liquid guide hole 16 on the bite tube 1, and then the micro sputum suction pump arranged in the sputum suction tube 4 can be started to suck the saliva produced in the oral cavity into the sputum storage box 3 to prevent the saliva in the patient's mouth from being discharged.

[0041] Supplementary explanation: Since the bite sleeve 2 is always arranged on the periphery of the patient's teeth, the saliva produced in the patient's mouth will also be blocked by the bite sleeve 2, so that the saliva produced in the patient's mouth will not be discharged.

[0042] like Figure 7 and Figure 8 As shown, a branch pipe 41 is threadedly connected to the inner wall of the bottom end of the sputum suction tube 4.

[0043] By setting the branch pipe 41, the length of the suction tube 4 can be lengthened, which makes it easier to suck the saliva in the patient's mouth into the sputum storage box 3. The branch pipe 41 is arranged at the bottom of the suction tube 4 in a threaded connection manner, so that the branch pipe 41 can be disassembled, and different lengths of the branch pipe 41 can be selected according to the specific situation of the patient.

[0044] When use is completed, the branch tube 41 is disassembled, and then the sputum suction tube 4 is pressed, so that the sputum suction tube 4 presses the second spring 421, and the bottom of the sputum suction tube 4 is pressed against the inner wall of the occlusal tube 1. At this time, it is convenient to pull the sputum storage box 3 out of the insertion space, so as to clean the sputum storage box 3.

[0045] like Figure 1 As shown, one side of the sputum storage box 3 is sealed with a sealing card cover 31.

[0046] By setting the sealing card cover 31, the sputum storage box 3 can be sealed to prevent saliva from being discharged during use, and the inner wall of the sputum storage box 3 can be cleaned by taking out the sputum storage box 3 and then opening the sealing card cover 31.

[0047] Among them, Figure 1 It can be seen that a notch is provided on the sealing card cover 31, and a baffle is provided in the middle of the notch. This design facilitates pulling the sputum storage box 3, and it is convenient to pull it out after use. A pull rope can also be bolted to the baffle to facilitate pulling the sputum storage box 3 to move.

[0048] A support reinforcement pad 13 is fixedly arranged between the first positioning tube 11 , the second positioning tube 12 and the bite tube 1 .

[0049] By providing the support reinforcement pad 13, support can be provided for the occlusal tube 1 to prevent the occlusal tube 1 from being crushed, thereby preventing the inserted tube from being affected during the experiment.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A mouthpiece device for endotracheal intubation, comprising a bite tube (1), a first positioning tube (11) and a second positioning tube (12), wherein the bite tube (1) is an elliptical structure, the first positioning tube (11) and the second positioning tube (12) are both fixedly arranged in the bite tube (1), and the first positioning tube (11) is arranged on both sides of the second positioning tube (12), characterized in that: A bite mechanism is provided on the periphery of the bite tube (1) near one end and is sleeved on the periphery of the teeth. The bite mechanism is provided with an abutment mechanism that moves up and down as the teeth open and close. A sputum storage box (3) is detachably provided between the inner wall of the occlusal tube (1) and the second positioning tube (12); Liquid guide mechanisms for guiding saliva above the bite tube (1) are arranged on both sides of the bite tube (1), and a liquid guide hole (16) connected to the sputum storage box (3) is opened on the bite tube (1) in the liquid guide mechanism; Both sides of the bottom of the bite tube (1) are provided with sputum suction mechanisms for sucking saliva in the mouth into the sputum storage box (3).

2. A mouthpiece device for endotracheal intubation according to claim 1, characterized in that: The bite mechanism comprises a bite sleeve (2) and a flexible rubber sleeve (24); the bite sleeve (2) is fixedly sleeved on the periphery of the bite tube (1) near one end; the bite sleeve (2) is in an arc-shaped structure and sleeved on the periphery of adjacent teeth; and the flexible rubber sleeve (24) is fixedly connected between adjacent bite sleeves (2).

3. A mouthpiece device for endotracheal intubation according to claim 2, characterized in that: The abutment mechanism comprises an abutment pad (22) and a first spring (23); a limiting groove (21) for the abutment pad (22) to slide up and down is provided on the bite sleeve (2); and the first spring (23) is fixedly arranged between the bottom of the limiting groove (21) and the abutment pad (22).

4. The mouthpiece device for endotracheal intubation according to claim 1, characterized in that: The liquid guide mechanism comprises a stop pad (14) and a liquid guide plate (15); the stop pad (14) is fixedly arranged on both sides of the bite tube (1) in an arc-shaped structure; the liquid guide plate (15) is fixedly arranged between the stop pad (14) and the bite tube (1); and liquid guide grooves (151) in an arc-shaped structure are provided on both sides of the liquid guide plate (15).

5. A mouthpiece device for endotracheal intubation according to claim 4, characterized in that: The liquid guide hole (16) is located at the bottom of the liquid guide groove (151), and a one-way valve is fixedly provided on the inner wall of the liquid guide hole (16) on the sputum storage box (3).

6. The mouthpiece device for endotracheal intubation according to claim 1, characterized in that: The sputum suction mechanism comprises a sputum suction tube (4) and a limiting sleeve (42), wherein the limiting sleeve (42) is fixedly arranged at the bottom of the bite tube (1), and the limiting sleeve (42) is detachably sleeved on the periphery of the sputum suction tube (4), and the cross-section of the sputum suction tube (4) is an L-shaped structure, the bottom end of the sputum suction tube (4) passes through the bite tube (1), and a second spring (421) is fixedly arranged between the top end and the inner wall of the sputum storage box (3), and a micro sputum suction pump is fixedly arranged on the inner wall of the sputum suction tube (4).

7. A mouthpiece device for endotracheal intubation according to claim 6, characterized in that: A branch pipe (41) is threadedly connected to the inner wall of the bottom end of the sputum suction tube (4).

8. The mouthpiece device for endotracheal intubation according to claim 1, characterized in that: One side of the sputum storage box (3) is sealed with a sealing card cover (31).

9. The mouthpiece device for endotracheal intubation according to claim 1, characterized in that: A support reinforcement pad (13) is fixedly arranged between the first positioning tube (11), the second positioning tube (12) and the occlusal tube (1).

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