An oropharyngeal air sac stent opener for oropharyngeal ventilation and auxiliary bronchoscope guided tracheal intubation

Abstract

The application relates to the field of medical devices, and discloses an oropharyngeal air sac strutting device for oropharyngeal ventilation and auxiliary bronchoscope guided tracheal intubation. The oropharyngeal air sac strutting device comprises a ventilation tube body, wherein the ventilation tube body is consistent with the upper respiratory tract anatomical structure of a human body; a first air sac is arranged on the inner wall of the ventilation tube body; and a second air sac is arranged on the outer wall of the end portion of the ventilation tube body. The oropharyngeal air sac strutting device can help guide the bronchoscope to enter the oropharyngeal part when tracheal intubation is guided by the bronchoscope in clinical work, the air sac inflation can quickly and fully expose the glottis by extruding the soft tissues of the throat part, the rapid tracheal intubation is realized, and the device is beneficial to the intubation use of patients with difficult glottis exposure and novice anesthesiologists.

Description

Technical Field

[0001] This application relates to the field of medical devices, and more specifically, it relates to the inflation of an oropharyngeal cuff for oropharyngeal ventilation and assisted bronchoscopic-guided endotracheal intubation. Background Technology

[0002] In current clinical practice, for patients with limited mouth opening, cervical spine injury, or restricted mobility who require awake intubation, fiberoptic bronchoscope-guided endotracheal intubation can effectively reduce intubation difficulty, improve intubation success rate, and reduce complications. However, due to the lack of experience of beginners or in patients with short necks, obesity, enlarged tongues leading to oropharyngeal narrowing and laryngeal edema, the fiberoptic bronchoscope is difficult to maneuver in the oropharynx, requiring a longer exposure time under the lens to enter the glottis, increasing the patient's hypoxia time and the occurrence of various complications. Fiberoptic bronchoscope-guided endotracheal intubation can effectively improve the intubation success rate and reduce complications. However, in clinical practice, the successful application of fiberoptic bronchoscope-guided endotracheal intubation highly depends on the operator's experience; lack of experience and training is the leading cause of intubation failure. Inexperienced beginners cannot place the fiberoptic bronchoscope in the pharynx and larynx in a short time, often failing to find the correct path due to obstruction by soft tissues such as the oral cavity and tongue, increasing the patient's hypoxia time, and in the case of awake intubation, increasing the patient's unpleasant experience.

[0003] Therefore, if an oropharyngeal balloon dilator could be developed to help guide the bronchoscope into the oropharynx, it would be beneficial for patients with difficult airways and glottic exposure, as well as for anesthesiologists new to bronchoscopy to use it for intubation. Utility Model Content

[0004] The purpose of this invention is to provide an oropharyngeal cuff expander for oropharyngeal ventilation and assisted bronchoscopic-guided endotracheal intubation, addressing the aforementioned problems. In clinical practice, this expander helps guide the bronchoscopy into the oropharynx during bronchoscopic-guided endotracheal intubation. The inflated cuff compresses the soft tissues of the pharynx to quickly and fully expose the glottis, enabling rapid endotracheal intubation. This is beneficial for patients with difficult airways and those with limited glottic exposure, as well as for anesthesiologists new to bronchoscopy.

[0005] The above objectives are achieved through the following technical solutions:

[0006] The oropharyngeal cuff dilator for oropharyngeal ventilation and assisted bronchoscopic endotracheal intubation consists primarily of an oropharyngeal airway conforming to the anatomy of the human upper respiratory tract, and includes cuffs on one inner wall of the dilator and on the outer wall of the tubular structure at the oropharyngeal end. The main body of the oropharyngeal airway helps maintain the patency of the upper airway, the presence of the lateral wall cuffs facilitates the withdrawal of the dilator, and the tubular outer wall cuffs facilitate the opening of the patient's oropharyngeal soft tissues to expose the glottis.

[0007] The oropharyngeal airway is a channel that conforms to the anatomy of the human oropharyngeal upper respiratory tract, ensuring that the patient's upper respiratory tract airway is unobstructed and avoiding factors that affect airway opening, such as tongue base retraction and abnormal glossopharyngeal structure.

[0008] When the inner wall airbag on one side is not inflated, it is an open space, which facilitates the insertion of the bronchoscope and the removal of the retractor. When the airbag is inflated, it becomes a closed space, sealing the side opening and preventing the bronchoscope from slipping out of the retractor.

[0009] The air sac on the outer wall of the pharyngeal tubular tube expands outward after inflation, which compresses the soft tissue of the pharynx to expand the space, thus making the bronchoscope's field of view and space larger.

[0010] The sidewalls and outer walls of the tubular structure are both smooth and rounded to prevent damage to the human oropharyngeal tissue.

[0011] Specifically, this application discloses an oropharyngeal cuff dilator for oropharyngeal ventilation and assisted bronchoscopic-guided endotracheal intubation, comprising:

[0012] The main body of the ventilation tube conforms to the anatomical structure of the human upper respiratory tract;

[0013] The first airbag is disposed on the inner wall of the main body of the ventilation tube;

[0014] The second airbag is located on the outer wall of the end of the main body of the ventilation tube.

[0015] Furthermore, the first airbag is disposed on one of the inner walls of the ventilator body. When the first airbag is not inflated, the ventilator body is an open space. When the first airbag is inflated, the ventilator body is a closed space.

[0016] Furthermore, the side wall of the ventilator body is provided with a first air inlet for inflating or deflating the first airbag.

[0017] Furthermore, the second airbag is disposed on the outer wall of the distal end of the airway body. After the second airbag is inflated, it expands outward to compress the soft tissue of the pharynx and expand the space.

[0018] Furthermore, a second air inlet is provided on the side wall of the main body of the ventilator for inflating or deflating the second airbag.

[0019] Furthermore, the sidewalls and endwalls of the main body of the ventilator are all smooth arc-shaped walls.

[0020] Furthermore, both the first and / or the second air injection ports are one-way closed sleeve air injection ports.

[0021] In summary, this application has the following beneficial effects:

[0022] 1. This utility model can ensure that the patient's upper respiratory tract airway is unobstructed and avoid factors that affect airway opening, such as tongue base retraction and abnormal glossopharyngeal structure.

[0023] 2. This invention can help guide a fiberoptic bronchoscope into the oropharynx. The inflation of the cuff can quickly and fully expose the glottis by squeezing the soft tissue of the pharynx, thus enabling rapid fiberoptic bronchial intubation. This is beneficial for patients with difficult airways and glottic exposure, as well as for anesthesiologists who are new to fiberoptic bronchoscopy.

[0024] 3. After the airbags on the inner wall of one side of the expander and the outer wall of the oropharyngeal tubular part of this utility model are inflated, the leak-proof cuff device can fix the sealed space of the side wall and the exposed space of the oropharynx, which can prevent the bronchoscope from sliding out of the side wall and facilitate subsequent intubation operations.

[0025] 4. After the bronchoscope is guided into the glottis, the air in the cuff is extracted, opening the space in the side wall, which makes it easier for the retractor to be withdrawn from the oral cavity. Then the endotracheal tube is inserted to complete the subsequent operation.

[0026] 5. The front and rear sides of the expander of this utility model are both arc-shaped with smooth edges, avoiding damage to the patient's oropharynx caused by sharp angles during insertion. Furthermore, the inflation of the air bladder is flexible and will not damage the soft tissues of the pharynx, and can be adjusted according to the patient's oropharyngeal exposure.

[0027] Instructions for use: This utility model is made of resin, hard plastic, and other materials, and is intended for single use to avoid cross-infection. During use, insert the bronchoscope through the patient's mouth into the pharynx. Then, inflate the tubular cuffs on the side walls and the front of the pharynx to fully expose the glottis. Insert the bronchoscope through the front inlet, and once the glottis is visible, insert the bronchoscope into the trachea. Remove the air from the cuff, withdraw the retractor from the open side wall space, insert the endotracheal tube, withdraw the bronchoscope, and observe the end-tidal carbon dioxide waveform to confirm the presence of the endotracheal tube. Attached Figure Description

[0028] Figure 1 : A schematic diagram of the oropharyngeal airbag expander in the embodiments of this application.

[0029] Reference numerals in the attached diagram: 1. Main body of the ventilation tube; 2. First airbag; 3. Second airbag; 4. First air inlet; 5. Second air inlet. Detailed Implementation

[0030] The structure and effects of this application will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the invention, not the entire structure.

[0031] Example

[0032] This application discloses an oropharyngeal cuff dilator for oropharyngeal ventilation and assisted bronchoscopic-guided endotracheal intubation, referring to... Figure 1 The oropharyngeal airbag expander includes an airway body 1, which conforms to the oropharyngeal airway anatomy of the human upper respiratory tract, ensuring unobstructed airway ventilation and avoiding factors that affect airway opening, such as tongue base retraction and abnormal glossopharyngeal structure.

[0033] The oropharyngeal cuff expander also includes a first cuff 2 and a second cuff 3 disposed on the main body of the airway 1.

[0034] The first airbag 2 is disposed on the inner wall of the ventilation tube body 1. Specifically, in this embodiment, the first airbag 2 is disposed on one of the inner walls of the ventilation tube body 1. When the first airbag 2 is not inflated, the ventilation tube body 1 is an open space, which facilitates the insertion of the bronchoscope and the removal of the retractor. When the first airbag 2 is inflated, the ventilation tube body 1 is a closed space, which closes the side opening and prevents the bronchoscope from slipping out of the retractor.

[0035] The second airbag 3 is disposed on the outer wall of the end of the airway body 1. Specifically, in this embodiment, the second airbag 3 is disposed on the outer wall of the distal end of the airway body 1. After the second airbag 3 is inflated, it expands outward to compress the soft tissue of the pharynx and expand the space.

[0036] The first cuff 2 facilitates the insertion and withdrawal of the bronchoscope, while the second cuff 3 helps to open the soft tissues of the oropharynx to expose the glottis, thus facilitating bronchoscope operation. This design not only maintains upper airway patency but also benefits novice anesthesiologists or patients with oropharyngeal stenosis or other intubation difficulties. The inflated cuffs compress the soft tissues of the pharynx, fully exposing the glottis, allowing the bronchoscope to quickly pass through the mouth and into the glottis, shortening the intubation time and increasing the success rate.

[0037] Reference Figure 1 The main body 1 of the ventilator is also provided with a first air inlet 4 and a second air inlet 5, both of which are one-way closed air inlets for the first airbag 2. The first air inlet 4 is used to inflate or deflate the first airbag 2, and the second air inlet 5 is used to inflate or deflate the second airbag 3.

[0038] In addition, the side walls and end walls of the main body 1 of the ventilation tube are smooth arc-shaped walls to prevent damage to the human oropharyngeal tissue.

[0039] The method of using the oropharyngeal balloon dilator in this embodiment is as follows:

[0040] The oropharyngeal cuff dilator is made of resin, hard plastic, or other materials and is for single use only to avoid cross-infection. During use, it is inserted through the patient's mouth into the pharynx. The tubular cuff at the side wall and anterior end of the pharynx is then inflated to fully expose the glottis. A fiberoptic bronchoscope is inserted through the anterior inlet, and once the glottis is visible, it is inserted into the trachea. The air in the cuff is removed, the dilator is withdrawn from the open side wall space, an endotracheal tube is inserted, the bronchoscope is withdrawn, and the end-tidal carbon dioxide waveform is observed to confirm the presence of the endotracheal tube.

[0041] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. An oropharyngeal cuff dilator for oropharyngeal ventilation and assisted bronchoscopic-guided endotracheal intubation, characterized in that, include: The main body of the ventilation tube conforms to the anatomical structure of the human upper respiratory tract; The first airbag is disposed on the inner wall of the main body of the ventilation tube; The second airbag is located on the outer wall of the end of the main body of the ventilation tube.

2. The oropharyngeal cuff dilator for oropharyngeal ventilation and assisted bronchoscopic-guided endotracheal intubation according to claim 1, characterized in that, The first airbag is disposed on one of the inner walls of the main body of the ventilation tube. When the first airbag is not inflated, the main body of the ventilation tube is an open space. When the first airbag is inflated, the main body of the ventilation tube is a closed space.

3. The oropharyngeal cuff dilator for oropharyngeal ventilation and assisted fiberoptic bronchoscope-guided endotracheal intubation according to claim 2, characterized in that, The side wall of the main body of the ventilator is provided with a first air inlet for inflating or deflating the first airbag; the first air inlet is a one-way closed airbag inlet.

4. The oropharyngeal cuff dilator for oropharyngeal ventilation and assisted fiberoptic bronchoscope-guided endotracheal intubation according to claim 1, characterized in that, The second airbag is located on the outer wall of the distal end of the main body of the airway. After the second airbag is inflated, it expands outward to compress the soft tissue of the pharynx and expand the space.

5. The oropharyngeal cuff dilator for oropharyngeal ventilation and assisted bronchoscopic-guided endotracheal intubation according to claim 4, characterized in that, The side wall of the main body of the ventilator is provided with a second air inlet for inflating or deflating the second airbag; the second air inlet is a one-way closed airbag inlet.

6. The oropharyngeal cuff dilator for oropharyngeal ventilation and assisted fiberoptic bronchoscope-guided endotracheal intubation according to claim 1, characterized in that, The side walls and end walls of the main body of the ventilator are all smooth arc-shaped walls.

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