Trachea cannula fixing bite block with real-time monitoring function

By integrating a pressure sensor and a laser ranging chip into the tracheal intubation fixation device, the bite force and intubation depth can be monitored in real time, solving the problem that existing devices cannot monitor in real time, improving airway safety and patient comfort, and reducing the workload of medical staff.

CN120754390APending Publication Date: 2025-10-10SHANGHAI TENTH PEOPLES HOSPITAL
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Patent Information

Application Number
CN202511280669.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-09
Publication Date
2025-10-10

AI Technical Summary

Technical Problem

Existing endotracheal tube fixation devices are unable to monitor the patient's bite force and intubation depth changes in real time, leading to the risk of airway obstruction, tooth damage and intubation depth deviation, increasing the workload of medical staff and the pain of patients.

Method used

It uses a real-time monitoring tracheal intubation fixed bite pad, equipped with a pressure sensor and a laser ranging chip to detect the bite force and intubation displacement in real time, and is equipped with a rubber spare trachea for emergency situations, realizing automated monitoring and rapid response.

Benefits of technology

It realizes real-time monitoring of bite force and intubation depth, reduces the risk of airway obstruction and tooth damage, reduces the workload of medical staff, improves patient safety and comfort, and shortens airway reconstruction time.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of medical health, in particular to a real-time monitoring trachea cannula fixing bite block which comprises a bite block body, a notch is formed in the middle of the outer surface of the bite block body in a sunken mode, a plurality of second through openings are evenly formed in the inner surface of the bite block body, and a trachea cannula penetrates through the notch and a channel formed by the closest second through opening close to the notch. The groove part is formed in the outer side of the notch and fixedly connected with the tooth cushion body, the trachea cannula penetrates through the groove part, a laser ranging chip used for detecting the moving distance of the trachea cannula is installed on one face of the groove part, and two pressure sensors used for being arranged between upper teeth and lower teeth in the oral cavity of the human body are installed on one face of the tooth cushion body. Compared with the prior art, the trachea cannula has the advantages that lumen blockage and tube wall breakage caused by excessive occlusion of the trachea cannula are avoided, or looseness, bleeding and falling caused by severe extrusion of teeth are avoided, passive coping is converted into active prevention, and whether the depth of the trachea cannula deviates from a preset safety range or not can be visually mastered through data.
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Description

Technical Field

[0001] The invention relates to the technical field of medical and sanitary treatment, in particular to a real-time monitoring tracheal intubation fixed bite pad. Background Art

[0002] In clinical endotracheal intubation care scenarios, when patients wake up from anesthesia or become irritable due to physical discomfort (such as foreign body sensation in the airway, pain, and hypoxia), they are often accompanied by a series of uncontrolled instinctive reactions. Among them, "biting the endotracheal tube" and "tendency to swallow or spit out the tube" are the core issues that are most likely to cause safety hazards. They not only threaten the patient's life safety, but also greatly increase the workload of medical staff. Existing fixation devices are difficult to fully deal with these risks.

[0003] From the perspective of the hazards of patients' biting behavior, the endotracheal tube is a key channel for maintaining patient ventilation. Once the patient bites hard, the soft tube wall is easily squeezed and the tube lumen narrows or even completely blocked. This will directly hinder airflow, leading to insufficient ventilation for the patient and causing emergency situations such as hypoxia and carbon dioxide retention. If not discovered and intervened in time, it may develop into respiratory failure. At the same time, continuous biting pressure may also damage the tube structure (such as tube wall rupture and loose joints), forcing medical staff to perform emergency reintubation. During the reintubation process, the patient may face additional risks such as airway damage and infection. More importantly, the biting force of patients in an agitated state often exceeds the normal range. The intense friction and squeezing between the hard teeth and the tube may cause loose teeth and damage to tooth enamel. In severe cases, it may even cause gum bleeding and tooth loss, causing additional oral trauma to the patient and prolonging the postoperative recovery period.

[0004] In addition to biting, patients who "swallow" or "spit" the tube when agitated also pose hidden risks. Swallowing the tube can unconsciously increase the depth of the intubation, potentially causing the tip of the tube to enter a bronchus (such as the right mainstem bronchus), triggering unilateral lung ventilation and causing atelectasis on the other side. Meanwhile, spitting the tube can shallow the intubation depth or even partially dislodge it from the airway, resulting in ineffective ventilation. Medical staff must frequently adjust the position of the tube to ensure accurate depth. Even more dangerous is that patients may tend to self-extubate during agitation. Even with restraints, they may still try to break free from the tube by scratching with their hands or moving their head. Once extubation is successful, their airway security is instantly lost, necessitating immediate reintubation. This not only disrupts the rhythm of treatment but also places medical staff in a state of high tension for a long time, burdening them with tremendous psychological pressure and workload. This is especially difficult at night or when medical staff are understaffed, making the response significantly more difficult.

[0005] Although the endotracheal tube fixation devices currently used in clinical practice can fix the tube in the patient's mouth or face through structures such as splints and straps made of hard plastic or silicone, which can to a certain extent buffer the patient's bite force and reduce the probability of direct damage to the tube and dental trauma, they still have obvious limitations: on the one hand, these devices lack the function of monitoring the "bite force". Medical staff cannot know the patient's bite strength in real time and can only make indirect judgments by observing the patient's expression, body movements or intubation status. It is difficult to predict the risk of obstruction caused by bite in advance and cannot actively intervene; on the other hand, the fixation device can only limit the horizontal displacement of the tube and is powerless to change the intubation depth caused by the patient swallowing or vomiting. When the patient swallows or vomits, the tube will still undergo longitudinal displacement with the movement of the throat muscles, causing the intubation depth to deviate from the preset safety range. Medical staff need to repeatedly use laryngoscopes or fiber bronchoscopes to confirm the depth, which not only increases the patient's pain but also consumes a lot of medical resources. It is difficult to meet the clinical needs for refined management of endotracheal intubation safety. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the present invention aims to provide a real-time monitoring endotracheal tube fixed bite block to solve the problems raised in the above background technology.

[0007] In order to achieve the above object, the present invention is implemented through the following technical solution: a real-time monitoring endotracheal tube fixed bite block, comprising:

[0008] The middle portion of the outer surface of the tooth pad body is concave to form a notch, and a plurality of second openings are evenly formed on the inner surface of the tooth pad body;

[0009] An endotracheal tube passes through a passage formed by the notch and a second opening closest to the notch;

[0010] A groove portion is provided outside the notch, the groove portion is connected and fixed to the mouthpiece body, the tracheal tube passes through the groove portion, and a laser ranging chip for detecting the movement distance of the tracheal tube is installed on one side of the groove portion;

[0011] There are two pressure sensors, and one side of the dental pad body is equipped with two pressure sensors for being arranged between the upper teeth and the lower teeth in the human oral cavity.

[0012] Specifically, one side of the tooth pad body is recessed to form two strip grooves, the pressure sensor is installed in the strip groove, a threading hole is processed on an inner wall of the strip groove, the threading hole is connected to a second opening, and the outer side of the pressure sensor is wrapped with a rubber film.

[0013] Specifically, the groove part is recessed to form a mounting groove, the laser ranging chip is mounted in the mounting groove, the laser ranging chip is wrapped with a plastic film, and a strip-shaped opening is processed in the mounting groove and communicates with the internal space of the groove part.

[0014] Specifically, the dental pad body is in a "U" shape structure, the cross section of the dental pad body is in a "U" shape, and a plurality of first through holes are uniformly processed on the outer surface of the dental pad body.

[0015] Specifically, the dental pad body is provided with a rubber spare air pipe near the notch, a connecting part is pasted on the outer surface of the rubber spare air pipe by glue, and the connecting part is glued to the dental pad body.

[0016] Specifically, the rubber spare air pipe is provided with a first column and a second column on the outside, the first column and the second column are symmetrically arranged about the rubber spare air pipe, the first column and the second column are arranged in parallel with the rubber spare air pipe, a plurality of rings are sleeved on the end of the rubber spare air pipe away from the notch and keep relative positions unchanged with the rubber spare air pipe, the first column and the second column keep relative positions unchanged with the rings, a first ear plate is mounted on the end of the first column away from the ring, a second ear plate is mounted on the end of the second column away from the ring, a screw rod is arranged between the first ear plate and the second ear plate, one end of the screw rod is rotationally connected with the first ear plate, the screw rod is threadedly connected with the second ear plate, and a knob head is mounted on the end of the screw rod away from the first ear plate.

[0017] Specifically, the second ear plate is provided with a support plate on the lower side, a recessed insertion slot is formed on the side of the second ear plate facing the support plate, an insertion plate is mounted on the upper end of the support plate, the insertion plate is inserted into the insertion slot, two small holes penetrating through the second ear plate are formed on the lower position of one side of the second ear plate, the small holes communicate with the insertion slot, two through holes matched with the small holes are formed on one side of the insertion plate, a U-shaped rod is arranged on one side of the second ear plate, both ends of the U-shaped rod are respectively inserted into the passages formed by the two groups of pin holes and the through holes, and a screw hole is formed on one side of the support plate.

[0018] Specifically, a sleeve is arranged on one side of the small hole, the sleeve is concentrically arranged with the small hole, one end of the sleeve is connected and fixed with the second ear plate, a rubber sleeve is pasted in the sleeve by glue, the rubber sleeve wraps the U-shaped rod, and the inner diameter of the rubber sleeve is the same as the diameter of the U-shaped rod.

[0019] Specifically, a circular hole is formed on the side of the first ear plate facing the second ear plate, one end of the screw rod away from the knob head penetrates through the circular hole, limit rings are arranged on both sides of the circular hole along the length direction of the screw rod, the limit rings are sleeved on the screw rod and are connected and fixed with the screw rod, and the limit rings slide with the first ear plate.

[0020] Specifically, the first pole is provided with a plurality of first rings which are fixed relative to the first pole, and the first rings are connected and fixed to the belt ring; the second pole is provided with a plurality of second rings which are fixed relative to the second pole, and the second rings are connected and fixed to the belt ring.

[0021] Beneficial effects of the present invention:

[0022] The two pressure sensors mounted on the dental pad are precisely positioned between the patient's upper and lower teeth, capturing real-time pressure signals generated by the patient's bite. When the patient awakens from anesthesia and becomes agitated or begins to bite due to discomfort, the pressure sensors convert the bite force into an electrical signal and transmit it to an external monitoring terminal. This allows medical staff to intuitively assess the bite strength without having to rely on indirect methods like observing the patient's facial expressions or body movements. If the bite force exceeds a safe threshold, the terminal issues an alarm, allowing medical staff to intervene early to prevent endotracheal tube obstruction or tube wall rupture due to excessive occlusion, or loosening, bleeding, or loss of teeth due to intense squeezing. This shift from passive response to active prevention significantly improves patient airway safety and oral health.

[0023] The groove is fixed to the patient's mouth along with the dental brace. When the endotracheal tube passes through the groove, a laser ranging chip inside the groove detects the distance to the tube surface in real time. If the patient swallows or spits the tube due to agitation, the relative distance between the tube and the laser ranging chip changes accordingly. The laser ranging chip converts this distance change into displacement data and provides real-time feedback to the monitoring terminal. This data allows medical staff to intuitively determine whether the endotracheal tube depth deviates from the preset safety range, eliminating the need for repeated laryngoscopes or fiberoptic bronchoscopy, reducing patient pain and the consumption of medical resources. This is especially true at night or when medical staff are insufficiently staffed. Depth deviations can be quickly detected, avoiding risks such as unilateral lung ventilation due to excessively deep intubation or ineffective ventilation due to excessively shallow intubation.

[0024] The rubber backup tracheal tube on one side of the mouthpiece is secured by a connection. If the patient self-extubates, causing the endotracheal tube to become dislodged, the rubber backup tracheal tube quickly establishes a temporary ventilation channel, preventing the patient from experiencing hypoxia, respiratory failure, and other emergencies caused by the instantaneous loss of airway support. Compared to the traditional process requiring reintubation, the rubber backup tracheal tube significantly shortens airway reestablishment time, creating a valuable window for saving the patient's life. It is particularly suitable for patients at high risk of agitation and a high probability of extubation.

[0025] The screw is driven to rotate by rotating the knob head, and the threaded cooperation between the screw and the second ear plate can drive the second column rod to move closer to or away from the first column rod. When the second column rod moves away from the first column rod, the two form lateral extrusion on the rubber spare trachea through the belt ring, so that the originally round cross-section of the rubber spare trachea gradually becomes flat. When the patient's oral space is narrow, or the rubber spare trachea needs to be quickly inserted through a narrow gap, adjusting it to a flat shape can reduce the vertical occupied space and reduce the difficulty of insertion. The screw can be rotated in the opposite direction to expand the distance between the columns. The rubber spare trachea can be restored to a round shape and adapt to the conventional airway state, realizing flexible adaptation of one tube to multiple forms. There is no need to prepare spare tracheas separately for different scenarios, which improves the versatility of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0027] Figure 1 This is a structural schematic diagram of a real-time monitoring endotracheal tube fixed bite pad of the present invention;

[0028] Figure 2 This is a three-dimensional image from another perspective of a real-time monitoring endotracheal tube fixed bite block of the present invention;

[0029] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0030] Figure 4 This is a schematic diagram of the assembly of a laser ranging chip, a pressure sensor, and a bite block body in a real-time monitoring endotracheal tube fixed bite block of the present invention;

[0031] Figure 5 This is a schematic diagram of the assembly of the groove portion and the bite block body in a real-time monitoring endotracheal tube fixing bite block of the present invention;

[0032] Figure 6 This is a schematic diagram of the assembly of the groove portion and the bite block body of a real-time monitoring endotracheal tube fixation bite block of the present invention from another perspective;

[0033] Figure 7 This is a schematic diagram of the assembly of a ring and a rubber spare tracheal tube in a fixed bite block for tracheal intubation with real-time monitoring according to the present invention;

[0034] Figure 8 for Figure 7 Enlarged view of point B in the middle;

[0035] Figure 9 This is a schematic diagram of the explosion structure of a ring, a screw and a rubber spare trachea tube in a real-time monitoring tracheal tube fixing bite block of the present invention;

[0036] In the picture:

[0037] 1, dental pad body; 11, first through hole; 12, second through hole; 13, strip-shaped slot; 14, threading hole; 15, notch;

[0038] 2, pressure sensor;

[0039] 3, groove part; 31, lifting part; 32, laser ranging chip; 33, mounting groove;

[0040] 4, tracheal tube;

[0041] 5, rubber spare trachea;

[0042] 6, ring; 61, first ring; 62, first column; 63, second ring; 64, second column; 65, first ear plate; 66, second ear plate; 67, round hole; 68, insertion slot; 69, small hole;

[0043] 7, screw; 71, knob head; 72, limiting ring;

[0044] 8, support plate; 81, insertion plate; 82, U-shaped rod; 83, tube sleeve; 84, screw hole; 85, rubber sleeve; 86, through hole. DETAILED DESCRIPTION

[0045] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application will be further described below in combination with specific embodiments.

[0046] Please refer to Figures 1-9 The present application provides a technical solution: a real-time monitoring tracheal tube fixing dental pad, comprising a dental pad body 1, a notch 15 is formed in the middle of the outer surface of the dental pad body 1, a plurality of second through holes 12 are uniformly provided on the inner surface of the dental pad body 1, a tracheal tube 4 penetrates through the notch 15 and a channel formed by the closest second through hole 12 to the notch 15, the notch 15 and the second through hole 12 provide space for the arrangement of the tracheal tube 4, the dental pad body 1 is a "U" shaped structure, the cross section of the dental pad body 1 is a "U" shape, a plurality of first through holes 11 are uniformly processed on the outer surface of the dental pad body 1, the first through hole 11 cooperates with the second through hole 12 to provide a channel for the arrangement of the cable on the pressure sensor 2.

[0047] The groove part 3 is arranged outside the notch 15, the groove part 3 is connected and fixed with the dental pad body 1, the tracheal tube 4 penetrates through the groove part 3, the lifting part 31 for lifting the tracheal tube 4 is installed in the groove part 3, the lifting part 31 cooperates with the groove part 3 to support and limit the tracheal tube 4.

[0048] A laser ranging chip 32 for detecting the moving distance of the endotracheal tube 4 is installed on one side of the groove portion 3, wherein one side of the groove portion 3 is recessed to form a mounting groove 33, and the laser ranging chip 32 is installed in the mounting groove 33. The laser ranging chip 32 is wrapped with a plastic film, and a strip-shaped opening is processed in the mounting groove 33. The strip-shaped opening is communicated with the internal space of the groove portion 3. The plastic film wrapped around the laser ranging chip 32 can isolate the chip from the erosion of oral secretions and water vapor, thereby preventing the laser ranging chip 32 from malfunctioning and affecting the monitoring accuracy; the strip-shaped opening in the mounting groove 33 is communicated with the internal space of the groove portion 3, ensuring The laser can penetrate the strip opening and act on the tube surface without hindering the tube's passage through the groove 3. The groove 3 is fixed to the patient's oral cavity with the mouthpiece body 1. As the endotracheal tube 4 passes through the groove 3, the laser ranging chip 32 inside the groove 3 detects the distance to the tube surface in real time. When the patient swallows the tube (increasing the depth of the tube 4) or spits (shrinking the tube 4) due to agitation, the relative distance between the tube 4 and the laser ranging chip 32 changes accordingly. The laser ranging chip 32 converts this distance change into displacement data and provides real-time feedback to the monitoring terminal. This data allows medical staff to intuitively determine whether the endotracheal tube 4 depth has deviated from the preset safety range, eliminating the need for repeated laryngoscope or fiberoptic bronchoscopy examinations, reducing patient pain and wasting medical resources. This allows rapid detection of depth deviations, especially at night or when medical staff are understaffed, to avoid risks such as unilateral lung ventilation due to an excessively deep endotracheal tube 4 or ineffective ventilation due to an excessively shallow endotracheal tube 4.

[0049] Two pressure sensors 2 are provided. Two pressure sensors 2 for being arranged between the upper teeth and the lower teeth in the human oral cavity are installed on one side of the dental pad body 1, wherein one side of the dental pad body 1 is recessed to form two strip grooves 13, and the pressure sensor 2 is installed in the strip groove 13. A threading hole 14 is processed on an inner wall of the strip groove 13, and the threading hole 14 is connected to a second through port 12. The outside of the pressure sensor 2 is wrapped with a rubber film, and the pressure sensor 2 is installed in the strip groove 13 of the dental pad body 1. The rubber film wrapped on the outside can prevent the sensor from directly contacting the teeth and oral mucosa, reducing the risk of foreign body stimulation and damage, and can ensure that the occlusal pressure is transmitted to the pressure sensor 2 without affecting the accuracy of the monitoring data; the threading hole 14 in the strip groove 13 is connected to the second through port 12, which is convenient for hiding the line of the pressure sensor 2 to avoid the line being exposed and causing discomfort to the patient or being accidentally pulled and damaged, thereby ensuring the stable operation of the monitoring function.

[0050] The two pressure sensors 2 installed on the dental pad body 1 are accurately placed between the upper and lower teeth of the patient's oral cavity, and can capture the pressure signals generated by the patient's biting action in real time. When the patient starts to bite due to restlessness or discomfort after anesthesia, the pressure sensor 2 can convert the biting force into an electrical signal and transmit it to the external monitoring terminal. Medical staff can directly know the biting strength without needing to judge indirectly through observation of the patient's expression and body movement. If the biting force exceeds the safety threshold (such as the force that may cause obstruction of the tracheal tube 4 or damage to the teeth), the terminal can issue an alarm in time, and medical staff can intervene in advance (such as adjusting the dose of sedative drugs and calming the patient), avoiding obstruction of the tracheal tube 4 lumen or wall rupture due to excessive biting, or loose, bleeding, and falling of teeth due to severe extrusion, from passive response to active prevention, greatly improving the safety of the patient's airway and oral health protection.

[0051] The pressure sensor 2 and the laser ranging chip 32 realize automatic monitoring of the biting force and the displacement of the tracheal tube 4. Medical staff do not need to continuously observe the patient's bed, but can master the patient's condition through remote monitoring terminals, reducing the frequency of artificial inspection and psychological pressure. The alarm function can timely remind the abnormal situation, avoiding missing the risk signal due to negligence, especially in the multi-patient care scene, greatly improving the work efficiency of medical staff. The monitoring terminal can automatically record the change trend of the biting force and the displacement history data of the tracheal tube 4. Medical staff can analyze the patient's restlessness rules (such as easy restlessness period and biting strength peak) through data backtracking, and adjust the nursing plan (such as strengthening the patrol in the easy restlessness period and optimizing the sedation scheme) accordingly, to realize fine nursing, and the data record also provides a basis for medical quality evaluation and subsequent nursing improvement.

[0052] The rubber spare tracheal tube 5 is provided on one side of the dental pad body 1 close to the notch 15. The outer surface of the rubber spare tracheal tube 5 is pasted with a connecting part by glue, and the connecting part is glued to the dental pad body 1. The rubber spare tracheal tube 5 on one side of the dental pad body 1 is fixed through the connecting part. When the patient pulls out the tracheal tube 4 due to self-extubation, the rubber spare tracheal tube 5 can quickly establish a temporary ventilation channel to avoid the patient losing airway protection in the instant of extubation and causing hypoxia, respiratory failure and other emergency situations. Compared with the traditional process of reinserting the tracheal tube, the existence of the rubber spare tracheal tube 5 greatly shortens the airway reconstruction time, which is especially suitable for patients with high risk of restlessness and high probability of extubation (such as patients in the anesthesia recovery period and patients with consciousness disorders).

[0053] A first column rod 62 and a second column rod 64 are provided on the outside of the rubber spare air tube 5. The first column rod 62 and the second column rod 64 are symmetrically arranged about the rubber spare air tube 5. The first column rod 62 and the second column rod 64 are arranged parallel to the rubber spare air tube 5. One end of the rubber spare air tube 5 away from the notch 15 is provided with a plurality of belt rings 6 that maintain a relative position unchanged with the rubber spare air tube 5. The first column rod 62 is provided with a plurality of first rings 61 that maintain a relative position fixed with the first column rod 62, and the second column rod 64 is provided with a plurality of second rings 63 that maintain a relative position fixed with the second column rod 64. The first rings 61 are connected and fixed to the belt rings 6, and the second rings 63 are connected and fixed to the belt rings 6, so that the relative positions of the first column rod 62, the second column rod 64 and the belt rings 6 remain unchanged.

[0054] The first post 62 is provided with a first ear plate 65 at one end away from the belt ring 6, and a second ear plate 66 is provided at one end of the second post 64 away from the belt ring 6. A screw 7 is provided between the first ear plate 65 and the second ear plate 66. A circular hole 67 is provided on the side of the first ear plate 65 facing the second ear plate 66. The end of the screw 7 away from the knob head 71 passes through the circular hole 67. Both sides of the circular hole 67 along the length direction of the screw 7 are provided with a limiting ring 72. The limiting ring 72 is sleeved on the screw 7 and connected and fixed to the screw 7. The limiting ring 72 is in sliding contact with the first ear plate 65. The limiting ring 72 cooperates with the circular hole 67 to realize that one end of the screw 7 is rotatably connected to the first ear plate 65, and the screw 7 is threadedly connected to the second ear plate 66. The end of the screw 7 away from the first ear plate 65 is provided with a knob head 71. By rotating the knob head 71 to drive the screw 7 to rotate, and utilizing the threaded cooperation between the screw 7 and the second ear plate 66, the second column 64 can be driven to move closer to or away from the first column 62. When the second column 64 moves away from the first column 62, the two form lateral extrusion on the rubber spare trachea 5 through the belt ring 6, so that the originally round cross-section of the rubber spare trachea 5 gradually becomes flat. When the patient's oral space is narrow, or the rubber spare trachea 5 needs to be quickly inserted through a narrow gap, adjusting it to a flat shape can reduce the vertical occupied space and reduce the difficulty of insertion. Reversely rotating the screw 7 to expand the column spacing, the rubber spare trachea 5 can return to a round shape, adapt to the conventional airway state, and realize flexible adaptation of one tube to multiple forms. There is no need to prepare spare tracheas separately for different scenarios, thereby improving the versatility of the equipment.

[0055] A support plate 8 is provided on the lower side of the second ear plate 66. A side of the second ear plate 66 facing the support plate 8 is recessed to form a slot 68. An insert plate 81 is installed on the upper end of the support plate 8. The insert plate 81 is inserted into the slot 68. Two small holes 69 that penetrate the second ear plate 66 are provided at the lower position of one side of the second ear plate 66. The small holes 69 are connected to the slot 68. Two through holes 86 that match the small holes 69 are provided on one side of the insert plate 81. A U-shaped rod 82 is provided on one side of the second ear plate 66. The U-shaped rod The two ends of 82 are respectively inserted into the channel formed by the two groups of small holes 69 and the through-hole 86. A screw hole 84 is opened on one side of the support plate 8, and the screw rod 7 is threadedly connected to the screw hole 84. A pipe sleeve 83 is provided on one side of the small hole 69. The pipe sleeve 83 is arranged concentrically with the small hole 69. One end of the pipe sleeve 83 is connected and fixed to the second ear plate 66. A rubber sleeve 85 is glued inside the pipe sleeve 83. The rubber sleeve 85 is wrapped around the U-shaped rod 82, and the inner diameter of the rubber sleeve 85 is the same as that of the U-shaped rod 82. The rubber sleeve 85 in the pipe sleeve 83 tightly wraps around the U-shaped rod 82, ensuring that the U-shaped rod 82 will not accidentally fall out due to patient movement or equipment vibration when not in operation through friction, and ensuring the stability of the connection between the screw rod 7 and the second ear plate 66. First, the U-shaped rod 82 is used to quickly release the second lug 66 from the support plate 8, allowing the screw 7 to be smoothly separated from the second lug 66. This ensures that the screw 7 is quickly reset to release the rubber backup airway 5. The entire process requires no complex tools, poses no risk of component loss, and eliminates operational delays. The screw 7 is separated and the rubber backup airway 5 is restored in a short period of time. This design allows for efficient operation in emergency scenarios (such as the need to quickly activate the rubber backup airway 5 after a patient's extubation), avoiding delays in treatment due to cumbersome procedures, reducing operational complexity for medical personnel, and improving practicality and reliability in clinical settings.

[0056] Although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A real-time monitoring endotracheal tube fixed bite block, characterized in that: include: The middle portion of the outer surface of the tooth pad body (1) is recessed to form a notch (15), and the inner surface of the tooth pad body (1) is evenly provided with a plurality of second openings (12); An endotracheal tube (4) passes through a passage formed by the notch (15) and a second opening (12) closest to the notch (15); A groove portion (3) is arranged outside the notch (15), the groove portion (3) is connected and fixed to the tooth pad body (1), the tracheal tube (4) passes through the groove portion (3), and a laser ranging chip (32) for detecting the moving distance of the tracheal tube (4) is installed on one side of the groove portion (3); Two pressure sensors (2) are provided. One side of the tooth pad body (1) is equipped with two pressure sensors (2) for being arranged between the upper teeth and the lower teeth in the human oral cavity.

2. The real-time monitoring endotracheal tube fixed bite block according to claim 1, characterized in that: One side of the tooth pad body (1) is recessed to form two strip grooves (13), the pressure sensor (2) is installed in the strip groove (13), a threading hole (14) is processed on an inner wall of the strip groove (13), the threading hole (14) is connected to a second opening (12), and the outer side of the pressure sensor (2) is wrapped with a rubber film.

3. The real-time monitoring endotracheal tube fixed bite block according to claim 1, characterized in that: One side of the groove portion (3) is recessed to form a mounting groove (33), the laser ranging chip (32) is mounted in the mounting groove (33), the laser ranging chip (32) is wrapped with a plastic film, a strip-shaped opening is machined in the mounting groove (33), and the strip-shaped opening is communicated with the internal space of the groove portion (3).

4. The real-time monitoring endotracheal tube fixed bite block according to claim 1, characterized in that: The tooth pad body (1) is a "U"-shaped structure, the cross section of the tooth pad body (1) is a "U"-shaped structure, and the outer surface of the tooth pad body (1) is uniformly processed with a plurality of first openings (11).

5. The real-time monitoring endotracheal tube fixed bite block according to claim 1, characterized in that: A rubber spare air tube (5) is provided on one side of the tooth pad body (1) at a position close to the notch (15), and a connecting portion is attached to the outer surface of the rubber spare air tube (5) by glue, and the connecting portion is adhered to the tooth pad body (1) by glue.

6. The real-time monitoring endotracheal tube fixed bite block according to claim 5, characterized in that: A first column (62) and a second column (64) are provided on the outside of the rubber spare air tube (5), the first column (62) and the second column (64) are symmetrically arranged with respect to the rubber spare air tube (5), the first column (62) and the second column (64) are arranged in parallel with the rubber spare air tube (5), and a plurality of belt rings (6) are sleeved on one end of the rubber spare air tube (5) away from the notch (15) and the first column (62), the second column (64) and the belt rings (6) are kept in a constant relative position with respect to the rubber spare air tube (5). ) keep their relative positions unchanged, a first ear plate (65) is installed at one end of the first column (62) away from the belt ring (6), a second ear plate (66) is installed at one end of the second column (64) away from the belt ring (6), a screw rod (7) is provided between the first ear plate (65) and the second ear plate (66), one end of the screw rod (7) is rotatably connected to the first ear plate (65), the screw rod (7) is threadedly connected to the second ear plate (66), and a knob head (71) is installed at one end of the screw rod (7) away from the first ear plate (65).

7. The real-time monitoring endotracheal tube fixed bite block according to claim 6, characterized in that: A support plate (8) is provided on the lower side of the second ear plate (66), and a side of the second ear plate (66) facing the support plate (8) is recessed to form a slot (68). An inserting plate (81) is installed on the upper end of the support plate (8), and the inserting plate (81) is inserted into the slot (68). Two small holes (69) penetrating the second ear plate (66) are provided at the lower position of one side of the second ear plate (66), and the small holes (69) are communicated with the slot (68). Two through holes (86) matching the small holes (69) are provided on one side of the inserting plate (81). A U-shaped rod (82) is provided on one side of the second ear plate (66), and the two ends of the U-shaped rod (82) are respectively inserted into the channel formed by the two groups of small holes (69) and the through hole (86). A screw hole (84) is provided on one side of the support plate (8), and the screw rod (7) is threadedly connected in the screw hole (84).

8. The real-time monitoring endotracheal tube fixed bite block according to claim 7, characterized in that: A pipe sleeve (83) is provided on one side of the small hole (69), and the pipe sleeve (83) is arranged concentrically with the small hole (69). One end of the pipe sleeve (83) is connected and fixed to the second ear plate (66). A rubber sleeve (85) is glued inside the pipe sleeve (83), and the rubber sleeve (85) is wrapped around the U-shaped rod (82). The inner diameter of the rubber sleeve (85) is the same as the diameter of the U-shaped rod (82).

9. The real-time monitoring endotracheal tube fixed bite block according to claim 6, characterized in that: A circular hole (67) is provided on a side of the first ear plate (65) facing the second ear plate (66), and an end of the screw rod (7) away from the knob head (71) passes through the circular hole (67). A limiting ring (72) is provided on both sides of the circular hole (67) along the length direction of the screw rod (7). The limiting ring (72) is sleeved on the screw rod (7) and fixedly connected to the screw rod (7). The limiting ring (72) is in sliding contact with the first ear plate (65).

10. The real-time monitoring endotracheal tube fixed bite block according to claim 6, characterized in that: The first column (62) is provided with a plurality of first rings (61) which are fixed relative to the first column (62), and the first rings (61) are connected and fixed to the belt ring (6). The second column (64) is provided with a plurality of second rings (63) which are fixed relative to the second column (64), and the second rings (63) are connected and fixed to the belt ring (6).