Multi-channel oropharyngeal ventilation device

Abstract

The invention relates to the technical field of oropharynx ventilation channels, and particularly discloses a multi-channel oropharynx ventilation device which comprises a ventilation pipe body. The stimulation slowing-down mechanism is fixedly arranged at one end of the breather pipe main body, and the stimulation slowing-down mechanism is used for wrapping the head of the breather pipe main body; a top tongue mechanism; and the top tongue mechanism is fixedly arranged on one side of the breather pipe main body. The stimulation retarding mechanism and the tongue jacking mechanism are not unfolded in a negative pressure state before the disposable breather pipe body is unsealed, when the breather pipe body is inserted into the oropharynx of a patient, the head of the oropharynx ventilation catheter can be wrapped through the unfolded stimulation retarding mechanism, and an inwards-rolled arc-shaped angle is formed; therefore, stimulation of the head of the oropharynx ventilation catheter to the oropharynx of the patient is reduced, the mucous membrane of the oropharynx of the patient can be protected through the stimulation relieving mechanism even if small judgment errors exist when medical staff inserts the ventilation catheter body, and the function of facilitating operation of the medical staff is achieved.

Description

Technical Field

[0001] This invention relates to the field of oropharyngeal airway technology, specifically a multi-channel oropharyngeal airway device. Background Technology

[0002] An oropharyngeal airway, also known as an oropharyngeal airway tube, is a non-tracheal tube-like, non-invasive ventilation tube that prevents the tongue from falling back, rapidly opens the airway, and establishes a temporary artificial airway. Oropharyngeal airways are used for patients with complete or partial upper airway obstruction or loss of consciousness after anesthesia induction.

[0003] Oropharyngeal airways are often used for patients with posterior displacement of the tongue or airway obstruction after anesthesia. When selecting an appropriate oropharyngeal airway, choose one approximately equal in length to the distance from the incisors to the angle of the mandible. Open the patient's mouth and use a tongue retractor to lift the tongue, dislodging the base of the tongue from the posterior pharyngeal wall. The oropharyngeal airway can then be inserted into the mouth. Generally, when the distal end is only 1-2 cm from the incisors, the airway has reached the posterior pharyngeal wall. Then, lift the mandible with both hands to ensure the base of the tongue is away from the posterior pharyngeal wall, and continue to advance the oropharyngeal airway inward by 2 cm, ensuring the curved section of the airway is behind the base of the tongue. After placement, the oropharyngeal airway should be secured, the jaw relaxed, and it checked whether the tongue or lips are trapped between the incisors and the airway. However, medical staff often rely on visual inspection and experience to determine when the oropharyngeal airway is inserted to within 1-2 cm of the incisors before rotating it to allow the head of the airway to enter the oropharynx. Since the oropharynx varies from patient to patient, even slight errors can increase irritation to the oropharyngeal mucosa, potentially leading to vomiting. Furthermore, when the head of the oropharyngeal airway passes through the larynx, medical staff may rely on experience to determine that it might irritate the laryngeal mucosa, causing bleeding. This makes it difficult for medical staff to accurately assess and minimize irritation to the patient's oropharynx. Therefore, we propose a multi-channel oropharyngeal ventilation device. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-channel oropharyngeal ventilation device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-channel oropharyngeal ventilation device, comprising: a ventilation tube body;

[0006] A stimuli mitigation mechanism is fixedly installed at one end of the main body of the ventilation tube, and the stimuli mitigation mechanism is used to wrap around the head of the main body of the ventilation tube;

[0007] Tongue-pressing mechanism; The tongue-pressing mechanism is fixedly installed on one side of the main body of the ventilator and is used to press the tongue down.

[0008] Preferably, the main body of the airway includes a hollow semi-S-shaped oropharyngeal airway tube. The oropharyngeal airway tube has a first cavity and a second cavity that are not connected to each other. The width of the first cavity and the width of the second cavity are the same. The second cavity is located on the side closer to the tongue mechanism, and the first cavity is located on the other side.

[0009] Preferably, one end of the oropharyngeal ventilation tube is fixedly provided with a bite post that communicates with the inside of the oropharyngeal ventilation tube and is used to pry open the patient's upper and lower teeth. The bite post is provided with a wing plate for limiting the patient's lips. The pharyngeal bend of the oropharyngeal ventilation tube can be placed at the pharyngeal position at the back root of the tongue to maintain the patency of the airway in the oropharynx.

[0010] Preferably, the flange plate has two channels that communicate with the first cavity and the second cavity respectively, and each channel in the flange plate is fixedly provided with a silicone soft plug for sealing.

[0011] Preferably, the irritation mitigation mechanism includes a fixed rubber ring head that is fixedly connected to the main body of the airway tube, wherein the outer diameter of the fixed rubber ring head is the same as the outer diameter of the main body of the airway tube.

[0012] Preferably, a damping rubber ring is fixedly provided at one end of the fixed rubber ring head to wrap around the edge of the head of the ventilator body. The damping rubber ring has a folded structure and is rolled inward inside the head of the ventilator body. The diameter of the damping rubber ring gradually increases from front to back, and the thickness of the damping rubber ring gradually decreases from front to back.

[0013] Preferably, the buffer rubber ring has an expansion cavity inside, and the input end of the expansion cavity is provided with several air column holes opened inside the fixed rubber ring head. The input end of the air column holes is provided with an air passage integrated with the fixed rubber ring head, and the air passage, air column holes and expansion cavity are interconnected.

[0014] Preferably, the expansion cavity is annularly wound with an elastic band ring, and the length of the elastic band ring in its relaxed state is smaller than the circumference of the unfolded shock absorber ring.

[0015] Preferably, the top tongue mechanism includes a top airbag, with two push air columns fixedly installed on the inner side of the top airbag for controlling the retraction and expansion of the top airbag, and several retraction ropes fixedly installed inside the top airbag, and a silicone vent head fixedly installed on the top of the push air columns.

[0016] Preferably, a tension wire is fixedly installed between the two pushing air columns inside the top airbag.

[0017] This invention has at least the following beneficial effects:

[0018] This invention involves medical personnel visually and through experience determining when the oropharyngeal airway is inserted to within 1-2 cm of the incisors before rotating it to allow the head of the airway to enter the oropharynx. However, the oropharyngeal region can vary from patient to patient, and even slight errors can increase irritation to the oropharyngeal mucosa, potentially leading to vomiting. Furthermore, when the head of the oropharyngeal airway passes through the larynx, medical personnel, based on experience, may judge that it might irritate the laryngeal mucosa, causing bleeding. This makes precise judgment difficult for medical personnel to minimize irritation to the patient's oropharynx. Therefore, before the disposable airway body is unsealed, both the irritation mitigation mechanism and the tongue-lifting mechanism are in a negative pressure state and not deployed. When the airway body is inserted into the patient's oropharynx, the undeployed irritation mitigation mechanism can wrap around the head of the oropharyngeal airway tube and form an inward-curved arc angle, thereby reducing the stimulation of the oropharyngeal airway tube head on the patient's oropharynx. In this way, even if there is a slight error in the judgment of medical staff when inserting the airway body, the irritation mitigation mechanism can protect the mucosa of the patient's oropharynx, which facilitates the operation of medical staff. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the unfolded structure of the stimulation mitigation mechanism and the tongue-topping mechanism of the present invention;

[0021] Figure 3 This is a schematic diagram of the ventilation pipe structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the fixed rubber ring head structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the internal structure of the top-mounted airbag of the present invention;

[0024] Figure 6 This is a schematic diagram of the internal structure of the fixing ring head of the present invention;

[0025] Figure 7 This is a schematic cross-sectional view of the oropharyngeal ventilation tube of the present invention.

[0026] In the diagram: 1. Main body of the ventilation tube; 11. Oropharyngeal ventilation tube; 12. Flange plate; 13. Silicone soft plug; 14. Contraction wall groove; 15. First cavity; 16. Second cavity; 17. Bite post; 18. Air inlet; 2. Stimulation mitigation mechanism; 21. Fixed rubber ring head; 22. Stimulation rubber ring; 23. Ventilation tube; 24. Air column hole; 25. Elastic band ring; 26. Expansion cavity; 3. Tongue-mounting mechanism; 31. Top-mounted airbag; 32. Push-up air column; 33. Pulling thread; 34. Pulling retraction rope; 35. Silicone ventilation head. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figure 1-7 The present invention provides a technical solution: Embodiment 1, a multi-channel oropharyngeal ventilation device, comprising: ventilation tube body 1;

[0029] The stimulation reduction mechanism 2 is fixedly installed at one end of the airway body 1 and is used to wrap the head of the airway body 1.

[0030] Tongue-pressing mechanism 3; Tongue-pressing mechanism 3 is fixedly installed on one side of the main body 1 of the airway. Tongue-pressing mechanism 3 is used to depress the tongue. Oropharyngeal airways are mostly used for patients with posterior displacement of the tongue root or airway obstruction after anesthesia. When selecting an appropriate oropharyngeal airway, the length should be approximately equal to the length from the incisors to the angle of the mandible. Then, open the patient's mouth and use a tongue retractor to lift the tongue, so that the tongue root is away from the posterior pharyngeal wall. At this time, the oropharyngeal airway can be inserted into the oral cavity. Generally, when the end is only 1-2 cm away from the incisors, it means that the front end of the airway has reached the posterior pharyngeal wall. Then, lift the mandible with both hands to ensure that the tongue root is away from the posterior pharyngeal wall, and continue to push the oropharyngeal airway inward by 2 cm, so that the curved section of the airway is behind the tongue root. After placement, the oropharyngeal airway should be secured, the jaw relaxed, and it checked whether the tongue or lips are trapped between the incisors and the airway. However, medical staff should visually and based on experience judge that the oropharyngeal airway is inserted to within 1-2 cm of the incisors before rotating it to allow the head of the airway to enter the oropharynx. Since the oropharynx may vary from patient to patient, even slight errors can increase irritation to the oropharyngeal mucosa, leading to vomiting. Furthermore, when the head of the oropharyngeal airway passes through the larynx, medical staff, based on experience, judge that it may irritate the laryngeal mucosa, causing bleeding. Precise judgment by medical staff regarding the reduction of airway position is not always feasible. To minimize irritation to the patient's oropharynx, the irritation mitigation mechanism 2 and the tongue-pushing mechanism 3 are both in a negative pressure state and not deployed before the disposable airway body 1 is unsealed. When the airway body 1 is inserted into the patient's oropharynx, the undeployed irritation mitigation mechanism 2 can wrap around the head of the oropharyngeal airway tube 11 and form an inward-curved arc angle, thereby reducing the irritation of the head of the oropharyngeal airway tube 11 to the patient's oropharynx. In this way, even if there is a slight error in the judgment of medical staff when inserting the airway body 1, the irritation mitigation mechanism 2 can protect the mucosa of the patient's oropharynx, which facilitates the operation of medical staff.

[0031] The main body of the airway 1 includes a hollow semi-S-shaped oropharyngeal airway 11. The oropharyngeal airway 11 has two non-interconnected first cavities 15 and second cavities 16. The width of the first cavity 15 and the width of the second cavity 16 are the same. The second cavity 16 is located on one side near the tongue mechanism 3, and the first cavity 15 is located on the other side.

[0032] One end of the oropharyngeal ventilation tube 11 is fixedly equipped with a bite post 17, which is interconnected with the inside of the oropharyngeal ventilation tube 11 and is used to push open the patient's upper and lower teeth. The bite post 17 is equipped with a flange plate 12 for limiting the patient's lips. The pharyngeal bend of the oropharyngeal ventilation tube 11 can be placed at the pharyngeal position at the back root of the tongue to maintain the patency of the airway in the oropharynx. After the medical staff inserts the ventilation tube body 1 into the patient, the patient's teeth bite on the bite post 17, so that the flange plate 12 is tightly attached to the outside of the patient's lips. The flange plate 12 is fixed to the outside of the lips with adhesive tape. Oxygen enters the bite post 17 through the hole in the center of the flange plate 12, and then flows through the oropharyngeal ventilation tube 11 to the patient's oropharynx for breathing. The oropharyngeal ventilation tube 11 also pushes and pushes the patient's tongue to prevent the patient's tongue from falling off and affecting the patient's normal breathing.

[0033] The flange plate 12 has two channels that communicate with the first cavity 15 and the second cavity 16 respectively. Each channel in the flange plate 12 is fixedly equipped with a silicone soft plug 13 for sealing. After the airway body 1 is inserted into the patient's oropharynx, medical staff can use syringes to insert into the silicone soft plugs 13 in the channels communicating with the first cavity 15 and the second cavity 16. First, air is injected into the first cavity 15 using the syringe. As air is injected into the first cavity 15, the irritation mitigation mechanism 2 folded in the head of the oropharyngeal airway 11 can be slowly opened by the increase of air pressure. Then, air is refracted into the other channel using the syringe, which allows air to enter the second cavity 16. As the air in the second cavity 16 increases, the tongue mechanism 3 folded and retracted in the contraction groove 14 on the side wall of the oropharyngeal airway 11 can be gradually opened.

[0034] The irritation mitigation mechanism 2 includes a fixed rubber ring head 21 that is fixedly connected to the airway body 1. The outer diameter of the fixed rubber ring head 21 is the same as that of the outer diameter of the airway body 1. By making the outer diameter of the fixed rubber ring head 21 the same as that of the oropharyngeal airway tube 11, the sharp edges can be reduced, thereby reducing the irritation to the patient's oropharynx when the oropharyngeal airway tube 11 is inserted.

[0035] One end of the fixed rubber ring head 21 is fixedly provided with a bracing rubber ring 22 for wrapping the edge of the head of the ventilation tube body 1. The bracing rubber ring 22 is folded and rolled inward inside the head of the ventilation tube body 1. The diameter of the bracing rubber ring 22 gradually increases from front to back, and the thickness of the bracing rubber ring 22 gradually decreases from front to back. The diameter of the rear end of the bracing rubber ring 22 is larger than the diameter of the oropharyngeal ventilation tube 11. As air is injected, the bracing rubber ring 22 can unfold. By unfolding the bracing rubber ring 22, the edge of the bracing rubber ring 22 can be attached to the mucosa of the patient's oropharynx, preventing the mucosa of the oropharynx from blocking the mouth of the oropharyngeal ventilation tube 11, thus ensuring the flow of oxygen. When the bracing rubber ring 22 unfolds, it means that the entire ventilation tube body 1 has been inserted and will not shake randomly. Therefore, the unfolded bracing rubber ring 22 will not cause more severe irritation to the mucosa of the oropharynx.

[0036] An expansion cavity 26 is provided inside the damping rubber ring 22. Several air column holes 24 are provided at the input end of the expansion cavity 26, which are located inside the fixed rubber ring head 21. An air vent 23 is provided at the input end of the air column hole 24, which is integrated with the fixed rubber ring head 21. The air vent 23, the air column hole 24 and the expansion cavity 26 are interconnected. Several air vents 23 are inserted into the air supply hole 18 at the output end of the first cavity body 15. The air supply hole 18, the first cavity body 15 and the air vent 23 are interconnected.

[0037] An elastic band 25 is wound around the inside of the expansion cavity 26. The length of the elastic band 25 in its relaxed state is smaller than the circumference of the bracing ring 22 when it is unfolded. As air is injected into the first cavity 15, it is also injected into the ventilation tube 23 through the air column hole 24 and enters the air column hole 24 and the expansion cavity 26. As the air pressure in the air column hole 24 and the expansion cavity 26 increases, the bracing ring 22 becomes stiffer, thus opening the bracing ring 22 through air pressure. When it is necessary to remove the ventilation tube body 1, the air in the first cavity 15 is extracted using a syringe. As the air in the expansion cavity 26 decreases, the bracing ring 22 becomes less stiff. Then, the elasticity of the elastic band 25 causes the bracing ring 22 to close, so that the bracing ring 22 will not increase the irritation to the patient's oropharyngeal mucosa when the ventilation tube body 1 is removed.

[0038] The tongue-lifting mechanism 3 includes a top-mounted airbag 31. Two push-up air columns 32 are fixedly installed inside the top-mounted airbag 31 to control its expansion and contraction. Several tension ropes 34 are fixedly installed inside the top-mounted airbag 31. A silicone vent head 35 is fixedly installed at the top of each push-up air column 32. The input end of the push-up air column 32 is connected to the second cavity 16, and the push-up air column 32 is connected to the interior of the top-mounted airbag 31 through the silicone vent head 35. When air is injected into the second cavity 16, it is vented through the silicone vent head 35. The smaller central hole of the ventilator 35 allows air to be concentrated in the push-up air column 32, causing the push-up air column 32 to inflate and extend. The push-up air column 32 then pushes the top airbag 31 out of the contraction wall groove 14. After that, air enters the top airbag 31 and gradually expands to form an arc-shaped structure. The inflated top airbag 31 can push the patient's tongue. When it is necessary to remove the main body 1 of the ventilator, the air in the second cavity 16 is extracted, and the elasticity of the pull rope 34 causes the top airbag 31 to contract.

[0039] According to the above embodiments, in Embodiment 2, a tension thread 33 is fixedly installed between the two pushing air columns 32 inside the top airbag 31. The other ends of the two tension threads 33 are fixedly connected to both sides of the buffered rubber ring 22. Based on Embodiment 1, after the top airbag 31 is inflated, the two tension threads 33 can be pulled by the top airbag 31. By being pulled by the top airbag 31, the two sides of the buffered rubber ring 22 can be subjected to tension, thereby applying tension to the undeployed buffered rubber ring 22, assisting the buffered rubber ring 22 to deploy, and preventing the buffered rubber ring 22 from affecting the flow of oxygen after it is inflated.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-channel oropharyngeal ventilation device, characterized in that: include: Ventilation tube body (1); The stimulation relief mechanism (2) is fixedly installed at one end of the ventilation tube body (1) and is used to wrap the head of the ventilation tube body (1); Tongue-pressing mechanism (3); the tongue-pressing mechanism (3) is fixedly installed on one side of the air pipe body (1), and the tongue-pressing mechanism (3) is used to press the tongue.

2. The multi-channel oropharyngeal ventilation device according to claim 1, characterized in that: The main body of the ventilation tube (1) includes a hollow semi-S-shaped oropharyngeal ventilation tube (11). The oropharyngeal ventilation tube (11) has two non-interconnected first cavities (15) and second cavities (16) inside. The width of the first cavity (15) and the width of the second cavity (16) are respectively. The second cavity (16) is located on one side near the tongue mechanism (3), and the first cavity (15) is located on the other side.

3. The multi-channel oropharyngeal ventilation device according to claim 2, characterized in that: One end of the oropharyngeal ventilation tube (11) is fixedly provided with a bite post (17) that communicates with the inside of the oropharyngeal ventilation tube (11) for pushing open the patient's upper and lower teeth. The bite post (17) is provided with a wing plate (12) for limiting the patient's lips. The pharyngeal bend of the oropharyngeal ventilation tube (11) can be placed at the pharyngeal position at the back root of the tongue to maintain the airway patency of the oropharynx.

4. The multi-channel oropharyngeal ventilation device according to claim 3, characterized in that: The flange plate (12) has two channels that communicate with the first cavity (15) and the second cavity (16) respectively, and each channel is fixedly provided with a silicone soft plug (13) for sealing.

5. A multi-channel oropharyngeal ventilation device according to claim 1, characterized in that: The stimulation mitigation mechanism (2) includes a fixed rubber ring head (21) fixedly connected to the airway body (1), and the outer diameter of the fixed rubber ring head (21) is the same as the outer diameter of the airway body (1).

6. A multi-channel oropharyngeal ventilation device according to claim 5, characterized in that: One end of the fixed rubber ring head (21) is fixedly provided with a damping rubber ring (22) for wrapping the head edge of the ventilator body (1). The damping rubber ring (22) is folded and rolled inward inside the head of the ventilator body (1). The diameter of the damping rubber ring (22) gradually increases from front to back, and the thickness of the damping rubber ring (22) gradually decreases from front to back.

7. A multi-channel oropharyngeal ventilation device according to claim 6, characterized in that: The buffer rubber ring (22) has an expansion cavity (26) inside. The input end of the expansion cavity (26) is provided with a number of air column holes (24) opened inside the fixed rubber ring head (21). The input end of the air column hole (24) is provided with an air passage (23) integrated with the fixed rubber ring head (21), and the air passage (23), air column hole (24) and expansion cavity (26) are interconnected.

8. A multi-channel oropharyngeal ventilation device according to claim 7, characterized in that: The expansion cavity (26) is wrapped with an elastic band ring (25) inside, and the length of the elastic band ring (25) in the relaxed state is smaller than the circumference of the unfolded shock absorber ring (22).

9. A multi-channel oropharyngeal ventilation device according to claim 1, characterized in that: The tongue mechanism (3) includes a top airbag (31). Two push air columns (32) for controlling the expansion and contraction of the top airbag (31) are fixedly installed on the inner side of the top airbag (31). Several retraction ropes (34) are fixedly installed inside the top airbag (31). A silicone vent head (35) is fixedly installed on the top of the push air column (32).

10. A multi-channel oropharyngeal ventilation device according to claim 9, characterized in that: A tension wire (33) is fixedly installed between the two pushing air columns (32) inside the top airbag (31).

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