Intelligent device and alarm device for preventing accidental extubation of endotracheal tube

Abstract

The application discloses an intelligent device and alarm device for preventing accidental disconnection of a tracheal catheter, and relates to the technical field of medical devices.The device comprises a tracheal body, a bite block is arranged on one side of the tracheal body, and a placing groove is formed in the two sides of the bite block; the tracheal body is arranged in any one of the placing grooves; a fastening structure is arranged in the placing groove; the fastening structure comprises a fastening belt, which can fix the tracheal body; an alarm is arranged on the bite block, and the alarm can alarm when the tracheal body is disconnected; the fastening structure can be inflated immediately through the air bag ring when an abnormal axial tension is monitored, and the increasing resistance can be provided in the process of pulling out the catheter; the tactile feedback can often interrupt the unconscious behavior chain of the patient, the tracheal body can be prevented from moving out of the bite block, and the purpose of preventing the catheter from being disconnected is achieved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an intelligent device and alarm device for preventing accidental dislodgement of endotracheal tubes. Background Technology

[0002] Accidental extubation is a significant risk event that cannot be ignored in perioperative anesthesia management, especially during the post-anesthesia recovery unit (PACU) and postoperative transport. Once it occurs, it can lead to acute hypoxia, carbon dioxide retention, laryngeal edema, aspiration, and even induce arrhythmias or cardiac arrest, seriously threatening anesthesia safety, prolonging recovery time, and increasing the medical burden.

[0003] Currently, the main methods for preventing accidental extubation in clinical practice include physical restraint and fixation devices. Traditional fixation methods often rely on adhesive tape, gauze bandages, or ties for binding. However, these methods have inherent drawbacks in anesthetized patients: 1) The fixation effect is easily interfered with: Patients often experience agitation, sweating, or increased oral secretions during the anesthesia recovery period, which can cause the adhesive tape to lose its stickiness and the fixation band to loosen; 2) The tightness is difficult to control precisely: Too loose a fit can lead to tube displacement or slippage, while too tight a fit may compress facial skin, lips, or cause nasal ala pressure injuries, especially in patients undergoing prolonged surgery or surgery in a prone position; 3) Lack of an active early warning mechanism: Traditional fixation methods are only passive protection and cannot detect and intervene in time when the patient attempts to extubate, increasing the monitoring burden on anesthesiologists and recovery room nurses.

[0004] Therefore, an intelligent device and alarm device are provided to prevent accidental dislodgement of the endotracheal tube, in order to solve the problems mentioned in the background art. Summary of the Invention

[0005] The purpose of this invention is to provide an intelligent device and alarm device to prevent accidental removal of endotracheal tubes, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A smart device and alarm device for preventing accidental dislodgement of an endotracheal tube include an endotracheal tube body, a locking block on one side of the endotracheal tube body, placement slots on both sides of the locking block, the endotracheal tube body being located inside any one of the placement slots, a fastening structure inside the placement slot, the fastening structure including a fastening band that can fix the endotracheal tube body, and an alarm installed on the locking block that will sound an alarm when the endotracheal tube body is dislodged.

[0008] As a further embodiment of the present invention: the bite block has a ventilation hole in the middle, and restraint straps are installed on both sides of the bite block, with Velcro straps installed on the restraint straps.

[0009] As a further embodiment of the present invention: wherein, a first limiting ring and a second limiting ring are fixedly connected inside the vent hole, a cone is provided between the first limiting ring and the second limiting ring, the cone is slidably connected inside the vent hole, a pressure sensor is installed on the lower side of the second limiting ring, and the pressure sensor is electrically connected to the alarm.

[0010] As a further embodiment of the present invention: the fastening structure further includes an airbag ring, which is installed inside the placement groove. A rope winding roller is rotatably connected inside the biting block, and the fastening band is wound on the rope winding roller. A working cavity is opened on one side of the biting block, and a moving plate is slidably connected to the working cavity. The fastening band is fixedly connected to the moving plate.

[0011] As a further embodiment of the present invention: the biting block is provided with a biting structure, the biting structure includes a biting cavity, the inside of the biting cavity is fixedly connected to a spring plate by a spring, and a silicone block is slidably connected to the spring plate.

[0012] As a further embodiment of the present invention: a fixing box is provided below the silicone block, an inflatable airbag is installed inside the fixing box, the inflatable airbag is in communication with the airbag ring, a protrusion is fixedly connected to the upper side of the spring plate by a connecting plate, the connecting plate extends into the working cavity, and the protrusion is engaged inside the moving plate.

[0013] As a further embodiment of the present invention: a pressure sensor is installed inside the inflatable airbag, and the pressure sensor is electrically connected to the alarm.

[0014] As a further embodiment of the present invention, the rope winding roller passes through the engagement block and is helically connected to a nut.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. By setting up a fastening structure, when abnormal axial tension is detected, the timely inflation of the air bag ring can provide increasing resistance during the process of the tube being pulled out. This tactile feedback can often interrupt the patient's unconscious behavioral chain, which can prevent the trachea from moving out of the bite block and thus prevent dislodgement.

[0017] 2. With the addition of a spring plate, this device can automatically release the main fixation before medical staff arrive when the patient experiences severe convulsions or trismus. Once the nurse arrives at the bedside, she can directly remove the catheter, eliminating the need to find scissors, remove tape, or untangle complex locks. This saves valuable tens of seconds for subsequent airway management or cardiopulmonary resuscitation, significantly improving the success rate of emergency care. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the working cavity in this invention;

[0020] Figure 3 This is a schematic diagram of the placement groove structure in this invention;

[0021] Figure 4 This is a top view of the bite block structure in this invention;

[0022] Figure 5 This is a schematic diagram of the fastening band structure in this invention;

[0023] Figure 6 This is a schematic diagram of the silicone block structure in this invention;

[0024] Figure 7 This is a schematic diagram of the conical cylinder structure in this invention;

[0025] The correspondence between the labels and component names in the attached figures is as follows:

[0026] 1. Engaging block; 101. Vent hole; 102. Placement groove; 103. Restraint strap; 2. Conical tube; 201. First limiting ring; 202. Second limiting ring; 3. Air tube body; 4. Fastening strap; 401. Rope winding roller; 402. Airbag ring; 403. Nut; 5. Alarm; 6. Silicone block; 601. Fixing box; 602. Inflatable airbag; 603. Spring plate; 604. Protrusion; 605. Working chamber; 606. Moving plate. Detailed Implementation

[0027] Please see Figures 1-7A smart device and alarm device for preventing accidental dislodgement of an endotracheal tube include an endotracheal tube body 3, a locking block 1 on one side of the endotracheal tube body 3, and placement slots 102 on both sides of the locking block 1. The endotracheal tube body 3 is located inside any one of the placement slots 102. A fastening structure is provided inside the placement slot 102, including a fastening band 4, which can fix the endotracheal tube body 3. An alarm 5 is installed on the locking block 1, which sounds an alarm when the endotracheal tube body 3 is dislodged. In this embodiment, the locking block 1 is used as the base. The device secures the trachea body 3 using a fastening structure (including fastening straps 4) within the placement slot 102, preventing displacement. Simultaneously, an alarm 5 is integrated into the bite block 1; when the trachea body 3 is detected to have fallen off, the alarm 5 automatically triggers, forming a dual protection of "physical fixation + intelligent early warning." This device solves the problem of the trachea body 3 easily becoming dislodged due to patient agitation, turning over, or other accidental dislodgement during clinical use, reducing the risk of airway injury and hypoxia. The device integrates fixation and alarm functions, has a compact structure, does not affect the patient's normal breathing and activities, and improves ease of use.

[0028] Furthermore, a ventilation hole 101 is provided in the middle of the bite block 1, and restraint straps 103 are installed on both sides of the bite block 1, with Velcro attached to the restraint straps 103. In this embodiment, the ventilation hole 101 in the middle of the bite block 1 is a reserved channel for the patient's breathing, ensuring that the airway is not blocked after the trachea body 3 is fixed, thus ensuring smooth ventilation. The restraint straps 103 on both sides of the bite block 1 are quickly attached and fixed with Velcro, and can be adjusted around the patient's head (or neck) to stabilize the entire bite block 1 and trachea body 3 at the patient's mouth and nose, preventing the device from shifting. The ventilation hole 101 is designed to prevent the bite block 1 from obstructing the airway and causing the risk of suffocation. The restraint straps 103, through the adjustability of the Velcro, can be adapted to patients with different head circumferences, while also enabling quick wearing and removal of the device, taking into account both fixation stability and usage flexibility.

[0029] like Figure 7 As shown, a first limiting ring 201 and a second limiting ring 202 are fixedly connected inside the vent 101. A cone 2 is disposed between the first limiting ring 201 and the second limiting ring 202. The cone 2 is slidably connected inside the vent 101. A pressure sensor is installed on the lower side of the second limiting ring 202. The pressure sensor is electrically connected to the alarm 5. In this embodiment, the first limiting ring 201 and the second limiting ring 202 inside the vent 101 form a limiting space, and the cone 2 can slide between the two rings. When the air tube body 3 is normally fixed, it will press against the cone 2 to make it fit against the first limiting ring 201, and will not trigger the pressure sensor on the lower side of the second limiting ring 202.

[0030] When the trachea body 3 becomes blocked and the patient cannot breathe, the patient exhales through the ventilation port 101. The cone 2 moves upward when the patient exhales, pressing the pressure sensor on the lower side of the second limit ring 202. After the pressure sensor detects the pressure signal, it transmits it to the alarm 5, triggering an alarm (such as an audible and visual alarm). This setting realizes "real-time monitoring + immediate alarm" when the trachea body 3 is blocked, allowing medical staff to quickly discover the unexpected situation and shorten the emergency response time.

[0031] like Figure 3 As shown, the fastening structure also includes an airbag ring 402, which is installed inside the placement groove 102. A rope-winding roller 401 is rotatably connected inside the biting block 1, and a fastening band 4 is wound on the rope-winding roller 401. A working cavity 605 is opened on one side of the biting block 1, and a moving plate 606 is slidably connected to the working cavity 605. The fastening band 4 is fixedly connected to the moving plate 606. The rope-winding roller 401 passes through the biting block 1 and is spirally connected to a nut 403. In this embodiment, the rope-winding roller 401 inside the biting block 1 is wound with the fastening band 4, and the other end of the fastening band 4 is connected to the moving plate 606 inside the working cavity 605. Rotating the rope-winding roller 401 can tighten the fastening band 4 and press the air tube body 3 into the placement groove 102. After tightening the fastening band 4, tightening the nut 403 can lock the position of the rope-winding roller 401, prevent the fastening band 4 from loosening, and achieve mechanical locking.

[0032] like Figure 2 and Figure 6 As shown, the bite block 1 is provided with a bite structure, which includes a bite cavity. A spring plate 603 is fixedly connected inside the bite cavity by a spring. A silicone block 6 is slidably connected to the spring plate 603. A fixing box 601 is provided below the silicone block 6. An inflatable airbag 602 is installed inside the fixing box 601. The inflatable airbag 602 communicates with the airbag ring 402. A protrusion 604 is fixedly connected to the upper side of the spring plate 603 by a connecting plate. The connecting plate extends into the working cavity 605. The protrusion 604 is engaged inside the moving plate 606. A pressure sensor is installed inside the inflatable airbag 602. The pressure sensor is electrically connected to the alarm 5. In this embodiment, the occlusal cavity on the occlusal block 1 provides occlusal space for the patient's teeth, preventing the patient from unintentionally biting and damaging the trachea body 3; the spring plate 603 inside the occlusal cavity is connected by a spring and has an elastic buffering effect: when the patient bites, the spring is compressed to absorb the biting force, avoiding rigid contact that could cause discomfort to the teeth or damage to the device; the silicone block 6 on the spring plate 603 has a soft surface that directly contacts the patient's teeth, improving occlusal comfort and increasing friction to reduce slippage between the teeth and the device; this design protects the trachea body 3 from being bitten by the teeth, extends the service life of the catheter, and avoids the risk of air leakage or infection due to catheter damage.

[0033] Furthermore, when the patient experiences extubation (unconsciousness), because the bite block 1 is in the mouth, the tracheal body 3 will move when pulled, and the silicone block 6 can slide up and down, which will cause the silicone block 6 to move down and come into contact with the inflatable cuff 602, causing the inflatable cuff 602 to compress. The compression of the inflatable cuff 602 causes gas to flow into the cuff ring 402, which further expands the cuff ring 402, enhancing the wrapping and fixing force on the tracheal body 3. This achieves the phenomenon that the more the patient pulls out, the tighter the connection between the tracheal body 3 and the bite block 1 becomes, thereby preventing the tracheal body 3 from falling out of the bite block 1 and achieving the purpose of preventing the tracheal body 3 from falling out.

[0034] In cases such as epilepsy, patients may suddenly clench their teeth. When medical staff remove the tube to examine the patient, the silicone block 6 is subjected to pressure (tooth closure). The teeth compress the spring plate 603, causing it to move into the occlusal cavity. This causes the connecting plate and protrusion 604 to move within the working cavity 605. Consequently, the protrusion 604 and the moving plate 606 no longer engage. Under the elastic action of the fastening band 4, the moving plate 606 will move to the left. Figure 2 This causes the fastening band 4 to loosen and no longer tightly wrap around the trachea body 3, allowing medical staff to quickly remove the tube and gain more time to save the patient.

[0035] Furthermore, alarm 5 emits different modes of audible and visual alarms based on different sensor signals (from the pressure sensor under cone 2 or the pressure sensor inside inflatable airbag 602) to guide medical staff to take appropriate measures:

[0036] If you hear the catheter displacement alarm: immediately check the patient and the catheter to prevent accidental dislodgement.

[0037] Upon hearing the emergency engagement alarm: combined with observation, it indicates that the device has automatically disengaged, and preparations can be made immediately for airway suction, tube replacement, or other emergency rescue operations.

[0038] Working principle: In use, the tracheal body 3 (catheter) is placed in the placement groove 102 on one side of the bite block 1; rotating the nut 403 drives the rope roller 401 to rotate, tightening the fastening band 4 wrapped around the catheter, achieving initial mechanical fixation. Subsequently, the bite block 1 is placed between the patient's teeth, and the restraint straps 103 on both sides are wrapped around the head or neck. The tightness is adjusted by Velcro, and the entire device is fixed to the patient's face. At this time, the protrusion 604 is engaged in the slot of the moving plate 606, maintaining the tension of the fastening band 4; the air bag ring 402 and the inflatable air bag 602 are both in the uninflated ready state; when the patient pulls the catheter unconsciously due to agitation, the catheter is subjected to axial tension, which attempts to pull the catheter and bite block 1 outward together. Since the silicone block 6 and the spring plate 603 are slidably connected, under the action of inertia, the silicone block 6 will slide downward relative to the downward-pressing spring plate 603. The sliding silicone block 6 directly squeezes the inflatable airbag 602 below it. The gas in the airbag is forced into the airbag ring 402 connected to it, causing it to expand rapidly and tightly hug the tube radially. When the patient suddenly has epilepsy or severe delirium causing trismus, the teeth exert a huge vertical downward biting force on the silicone block 6. This force first causes the silicone block 6 to slide to its limit, and then the force is completely transmitted to the spring plate 603, overcoming the resistance of the supporting spring and forcing the entire spring plate 603 to move downward. When the spring plate 603 moves downward, it drives the protrusion 604 to move downward synchronously through the rigid connecting plate. When the top of the protrusion 604 drops below the lower edge of the slot of the moving plate 606, the locking relationship is released.

[0039] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An intelligent device and alarm device for preventing accidental removal of an endotracheal tube, characterized in that, The trachea includes a trachea body (3), a bite block (1) is provided on one side of the trachea body (3), and placement slots (102) are provided on both sides of the bite block (1). The trachea body (3) is located inside any one of the placement slots (102). A fastening structure is provided inside the placement slot (102). The fastening structure includes a fastening band (4). The fastening band (4) can fix the trachea body (3). An alarm (5) is installed on the bite block (1). The alarm (5) will sound an alarm when the trachea body (3) falls off.

2. The intelligent device and alarm device for preventing accidental removal of the endotracheal tube according to claim 1, characterized in that, The bite block (1) has a ventilation hole (101) in the middle, and the bite block (1) has a restraint strap (103) on both sides, and the restraint strap (103) has Velcro.

3. The intelligent device and alarm device for preventing accidental dislodgement of the endotracheal tube according to claim 2, characterized in that, The vent (101) is fixedly connected to a first limiting ring (201) and a second limiting ring (202). A cone (2) is provided between the first limiting ring (201) and the second limiting ring (202). The cone (2) is slidably connected inside the vent (101). A pressure sensor is installed on the lower side of the second limiting ring (202). The pressure sensor is electrically connected to the alarm (5).

4. The intelligent device and alarm device for preventing accidental removal of the endotracheal tube according to claim 1, characterized in that, The fastening structure also includes an airbag ring (402), which is installed inside the placement groove (102). The inside of the biting block (1) is rotatably connected to a rope winding roller (401), and the fastening band (4) is wound on the rope winding roller (401). A working cavity (605) is opened on one side of the biting block (1), and a moving plate (606) is slidably connected to the working cavity (605). The fastening band (4) is fixedly connected to the moving plate (606).

5. The intelligent device and alarm device for preventing accidental removal of the endotracheal tube according to claim 4, characterized in that, The biting block (1) is provided with a biting structure, the biting structure includes a biting cavity, the inside of the biting cavity is fixedly connected to a spring plate (603) by a spring, and a silicone block (6) is slidably connected to the spring plate (603).

6. The intelligent device and alarm device for preventing accidental dislodgement of the endotracheal tube according to claim 5, characterized in that, A fixing box (601) is provided below the silicone block (6). An inflatable airbag (602) is installed inside the fixing box (601). The inflatable airbag (602) is in communication with the airbag ring (402). A protrusion (604) is fixedly connected to the upper side of the spring plate (603) through a connecting plate. The connecting plate extends into the working cavity (605). The protrusion (604) is engaged inside the moving plate (606).

7. The intelligent device and alarm device for preventing accidental dislodgement of the endotracheal tube according to claim 6, characterized in that, A pressure sensor is installed inside the inflatable airbag (602), and the pressure sensor is electrically connected to the alarm (5).

8. The intelligent device and alarm device for preventing accidental removal of the endotracheal tube according to claim 4, characterized in that, The winding roller (401) passes through the engagement block (1) and is helically connected to a nut (403).

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