Multifunctional oropharynx ventilation catheter capable of sealing esophagus

Abstract

The invention discloses a multifunctional oropharynx ventilation catheter capable of sealing an esophagus, which belongs to the technical field of medical instruments and comprises a main oropharynx ventilation pipeline and an esophagus sealing assembly. A main channel is arranged in the center of the oropharynx ventilation main pipeline; the esophagus sealing assembly is fixed to the middle of the oropharynx ventilation main pipeline through a fixing band. An oropharynx air bag is arranged at the position, close to the stretching-in end, of the oropharynx ventilation main pipeline, and a certain distance exists between the oropharynx air bag and the end face of the stretching-in end. The oropharynx air bag is fixedly arranged on the outer wall of the oropharynx ventilation main pipeline in a sleeving mode and fixed to the rear portion of the tongue root of a patient after being inflated. The extending end of the oropharynx ventilation main pipeline is arranged in the main trachea, and one end of the esophagus closing assembly penetrates through the space between the oropharynx air bag and the oropharynx ventilation main pipeline and extends into the stomach of a patient to close the esophagus of the patient. The device has the advantages that regurgitation and aspiration are effectively prevented, the ventilation stability and continuity are high, multiple functions are integrated, and the diagnosis and treatment efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, and more specifically relates to a multifunctional oropharyngeal ventilation tube that can close the esophagus. Background Technology

[0002] An oropharyngeal airway is an emergency device used to maintain an open upper airway, commonly used for comatose patients or those with airway obstruction due to posterior displacement of the tongue. It prevents airway obstruction and assists ventilation by supporting the space between the tongue and the posterior pharyngeal wall, and is a commonly used basic device in emergency care and anesthesia. Existing oropharyngeal airways include straight tubes and curved tubes connected to the straight tube. After successful placement, the straight tube is the proximal end, closer to the intestinal tract, while the curved tube is the distal end, extending into the pharynx to establish an artificial passage. However, after endotracheal tube insertion, a large gap remains between the endotracheal tube and the glottis. Oropharyngeal secretions and gastroesophageal reflux can easily flow through this gap into the subglottic region and remain in the trachea above the endotracheal tube cuff. Unabsorbed secretions flowing into the deep trachea or even the bronchi can cause lung infections, bronchial obstruction, atelectasis, and other serious consequences for the patient.

[0003] Therefore, how to provide a multifunctional oropharyngeal ventilation tube that can close the esophagus is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the present invention provides a multifunctional oropharyngeal ventilation tube that can close the esophagus, adopting the following technical solution: A multifunctional oropharyngeal ventilation tube capable of sealing the esophagus includes an oropharyngeal ventilation main tube and an esophageal sealing component. The oropharyngeal ventilation main tube has a central channel. The esophageal sealing component is fixed to the middle of the oropharyngeal ventilation main tube by a fixing strap. An oropharyngeal cuff is positioned near the insertion end of the oropharyngeal ventilation main tube, with the cuff at a certain distance from the end face of the insertion end. The oropharyngeal cuff is fixedly sleeved on the outer wall of the oropharyngeal ventilation main tube and, after inflation, is fixed behind the patient's tongue. The insertion end of the oropharyngeal ventilation main tube is located within the main trachea. One end of the esophageal sealing component passes through the oropharyngeal cuff and the oropharyngeal ventilation main tube, extending into the patient's stomach to seal the patient's esophagus.

[0005] Furthermore, a baffle is provided at the outer end of the oropharyngeal ventilation main tube; the outer edge of the baffle protrudes outward to form a flange.

[0006] Furthermore, a first interface is provided on the outer end face of the baffle; the first interface is a threaded interface; the first interface is connected to the main channel.

[0007] Furthermore, multiple annular tooth fixing grooves are provided on the outer wall of the oropharyngeal ventilation main pipe on the side of the baffle near the insertion end.

[0008] Furthermore, the middle part of the oropharyngeal ventilation main pipe is arc-shaped, and the end face of the insertion end is set as a slope; the oropharyngeal airbag is set in the arc-shaped part of the oropharyngeal ventilation main pipe, and one end is connected to an external oropharyngeal airbag supply device through the oropharyngeal airbag ventilation tube; the oropharyngeal airbag ventilation tube is fixed to the oropharyngeal ventilation main pipe by the fixing strap.

[0009] Furthermore, the esophageal sealing assembly includes an esophageal airbag, an esophageal airbag ventilation tube, and an esophageal airbag supply device; one end of the esophageal airbag ventilation tube is fixedly connected to a support shaft located inside the esophageal airbag and communicates with the inside of the esophageal airbag; the other end of the esophageal airbag ventilation tube is connected to the esophageal airbag supply device.

[0010] Furthermore, the esophageal balloon ventilation tube is disposed between the oropharyngeal ventilation main tube and the inner wall of the oropharyngeal balloon, and the esophageal balloon ventilation tube is fixed to the oropharyngeal ventilation main tube by a fixing strap.

[0011] Furthermore, an end-tidal CO2 monitoring channel is also provided inside the side wall of the oropharyngeal ventilation main tube; a monitoring pipe connected to the end-tidal CO2 monitoring channel is also provided on the baffle, and a connector is provided at the outer end of the monitoring pipe for connecting monitoring equipment.

[0012] Furthermore, a high-flow oxygen inhalation channel is also provided inside the side wall of the oropharyngeal ventilation main pipe; the baffle is also provided with a high-flow oxygen inhalation interface that connects to the high-flow oxygen inhalation channel for connecting oxygen supply equipment.

[0013] The beneficial effects of this invention are as follows: 1. Effectively prevents reflux and aspiration: This invention integrates an esophageal sealing component into the oropharyngeal catheter. By inflating the esophageal balloon, the upper esophageal opening can be physically sealed, forming a reliable barrier. This is crucial for patients with full stomachs, those undergoing emergency surgery, those in the anesthesia induction period, and those in intensive care, significantly reducing the risk of aspiration pneumonia, suffocation, or even death caused by reflux and aspiration of gastric contents.

[0014] 2. Ventilation Stability and Continuity: This invention utilizes an oropharyngeal cuff, which, after inflation of the pharynx, more effectively and gently pushes the base of the tongue forward, preventing it from falling back and thus more reliably and stably maintaining airway patency. It also effectively closes the main trachea, preventing oropharyngeal secretions from flowing into organs. Furthermore, the use of dental retainers greatly enhances the catheter's resistance to displacement, preventing it from slipping out or deepening due to changes in patient position, swallowing movements, or lubrication from oral secretions, ensuring continuous ventilation.

[0015] 3. Multifunctional integration enhances diagnostic and treatment efficiency: The main channel at the center of the oropharyngeal ventilation system serves as both a ventilation channel and a lowering channel for bronchoscopy or treatment, allowing for bronchoscopy / treatment while preserving spontaneous breathing. Furthermore, it integrates an end-tidal CO2 monitoring channel and a high-flow oxygen channel, enabling continuous monitoring of the patient's ventilation, metabolic rate, and circulatory function. Simultaneously, high-flow oxygen is continuously administered to maintain oxygenation, ensuring mechanical ventilation for patients under general anesthesia with muscle relaxation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the present invention.

[0018] In the figure: 1-Oropharyngeal ventilation main tube; 11-Baffle; 12-First interface; 13-Dental fixation slot; 2-Esophageal sealing assembly; 21-Esophageal cuff; 22-Esophageal cuff ventilation tube; 23-Esophageal cuff supply device; 3-Fixing strap; 4-Oropharyngeal cuff; 41-Oropharyngeal cuff ventilation tube; 42-Oropharyngeal cuff supply device; 5-End-tidal CO2 monitoring channel; 51-Monitoring tube; 6-High-flow oxygen channel; 61-High-flow oxygen interface. Detailed Implementation

[0019] 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.

[0020] Please see the appendix Figure 1 This invention provides a multifunctional oropharyngeal ventilation tube that can close the esophagus, including an oropharyngeal ventilation main tube 1 and an esophageal closure component 2; the esophageal closure component 2 is fixed to the middle of the oropharyngeal ventilation main tube 1 by a fixing strap 3; an oropharyngeal balloon 4 is provided near the insertion end of the oropharyngeal ventilation main tube 1, and the oropharyngeal balloon 4 is fixedly sleeved on the outer wall of the oropharyngeal ventilation main tube 1; one end of the esophageal closure component 2 passes through the oropharyngeal balloon and the oropharyngeal ventilation main tube, and extends into the patient's stomach to close the patient's esophagus, preventing the reflux and aspiration of the patient's gastric contents.

[0021] A baffle 11 is provided at the outer end of the oropharyngeal ventilation main tube 1; the outer edge of the baffle 11 protrudes outward to form a flange; a first interface 12 is provided on the outer end face of the baffle 11; the first interface 12 is a threaded interface for connecting to the ventilator through a connecting tube; multiple annular tooth fixing grooves 13 are provided on the outer wall of the oropharyngeal ventilation main tube 1 on the side of the baffle 11 near the insertion end for fixing the patient's teeth and preventing the tube from slipping or falling out.

[0022] The oropharyngeal ventilation main tube 1 has a central channel that connects to the first interface 12. It can be used as a ventilation tube or as a lowering channel for bronchoscopy examination or treatment.

[0023] The oropharyngeal ventilation main tube 1 is arc-shaped in the middle, with its insertion end face set as a slope. The oropharyngeal cuff 4 is located at the arc-shaped part of the oropharyngeal ventilation main tube 1, with one end connected to an external oropharyngeal cuff supply device 42 via an oropharyngeal cuff ventilation tube 41. The oropharyngeal cuff ventilation tube 41 is fixed to the oropharyngeal ventilation main tube 1 by the fixing strap 3. After inflation, the oropharyngeal cuff 4 is fixed behind the patient's tongue base, effectively preventing the tongue base from falling back and compressing the pharynx. The oropharyngeal cuff 4 is at a certain distance from the insertion end face. The insertion end of the oropharyngeal ventilation main tube 1 is located in the main trachea and maintains airway occlusion through the oropharyngeal ventilation main tube 1.

[0024] The esophageal sealing assembly 2 includes an esophageal balloon 21, an esophageal balloon ventilation tube 22, and an esophageal balloon air supply device 23. The esophageal balloon ventilation tube 22 is disposed between the oropharyngeal ventilation main channel 1 and the inner wall of the oropharyngeal balloon 4, and the inner wall of the oropharyngeal balloon 4 can seal the gap. The esophageal balloon ventilation tube 22 is fixed to the oropharyngeal ventilation main channel 1 by a fixing strap 3. One end of the esophageal balloon ventilation tube 22 is fixedly connected to a support shaft located inside the esophageal balloon 21 and communicates with the interior of the esophageal balloon 21; the other end of the esophageal balloon ventilation tube 22 is connected to the esophageal balloon air supply device 23. The esophageal balloon air supply device 23 supplies air to the interior of the esophageal balloon 21 through the esophageal balloon ventilation tube 22, and supports it at the esophageal opening to seal the esophagus and prevent aspiration of gastric contents.

[0025] An end-tidal CO2 monitoring channel 5 is also provided inside the side wall of the oropharyngeal ventilation main tube 1; a monitoring tube 51 connected to the end-tidal CO2 monitoring channel 5 is also provided on the baffle 11, and a connector is provided at the outer end of the monitoring tube 51 for connecting the monitoring equipment. The monitoring equipment forms an exhaled carbon dioxide monitoring curve through the monitoring tube 51 and the end-tidal CO2 monitoring channel 5, providing clear indicators for respiratory support and respiratory management in anesthetized patients, ICU, and respiratory departments.

[0026] A high-flow oxygen inhalation channel 6 is also provided inside the side wall of the oropharyngeal ventilation main tube 1; a high-flow oxygen inhalation interface 61 is also provided on the baffle 11 to connect to the high-flow oxygen inhalation channel 6 for connecting to the oxygen supply equipment; the oxygen supply equipment connects to the high-flow oxygen inhalation channel 6 through the high-flow oxygen inhalation interface 61, thereby introducing oxygen into the patient's body.

[0027] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0028] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multifunctional oropharyngeal ventilation tube capable of sealing the esophagus, characterized in that, The device includes an oropharyngeal ventilation main tube (1) and an esophageal sealing component (2); the oropharyngeal ventilation main tube (1) has a main channel in the center; the esophageal sealing component (2) is fixed to the middle of the oropharyngeal ventilation main tube (1) by a fixing strap (3); an oropharyngeal airbag (4) is provided near the insertion end of the oropharyngeal ventilation main tube (1), and the oropharyngeal airbag (4) is a certain distance away from the end face of the insertion end; the oropharyngeal airbag (4) is fixedly sleeved on the outer wall of the oropharyngeal ventilation main tube (1), and after inflation, it is fixed behind the patient's tongue root; the insertion end of the oropharyngeal ventilation main tube (1) is located in the main trachea, and one end of the esophageal sealing component (2) passes through the oropharyngeal airbag (4) and the oropharyngeal ventilation main tube (1), and extends into the patient's stomach to seal the patient's esophagus.

2. The multifunctional oropharyngeal ventilation tube capable of sealing the esophagus according to claim 1, characterized in that, A baffle (11) is provided at the outer end of the oropharyngeal ventilation main pipe (1); the outer edge of the baffle (11) protrudes outward to form a flange.

3. The multifunctional oropharyngeal ventilation tube capable of sealing the esophagus according to claim 2, characterized in that, The baffle (11) has a first interface (12) on its outer end face; the first interface (12) is a threaded interface; the first interface (12) is connected to the main channel.

4. The multifunctional oropharyngeal ventilation tube capable of sealing the esophagus according to claim 2, characterized in that, Multiple annular tooth fixing grooves (13) are provided on the outer wall of the oropharyngeal ventilation main pipe (1) on the side of the baffle (11) near the insertion end.

5. The multifunctional oropharyngeal ventilation tube capable of sealing the esophagus according to claim 1, characterized in that, The oropharyngeal ventilation main pipe (1) is arc-shaped in the middle, and the end face of the insertion end is set as a slope; the oropharyngeal airbag (4) is set in the arc-shaped part of the oropharyngeal ventilation main pipe (1), and one end is connected to the external oropharyngeal airbag supply device (42) through the oropharyngeal airbag ventilation tube (41); the oropharyngeal airbag ventilation tube (41) is fixed to the oropharyngeal ventilation main pipe (1) by the fixing strap (3).

6. The multifunctional oropharyngeal ventilation tube capable of sealing the esophagus according to claim 1, characterized in that, The esophageal sealing assembly (2) includes an esophageal airbag (21), an esophageal airbag ventilation tube (22), and an esophageal airbag supply device (23); one end of the esophageal airbag ventilation tube (22) is fixedly connected to a support shaft located inside the esophageal airbag (21) and communicates with the inside of the esophageal airbag (21); the other end of the esophageal airbag ventilation tube (22) is connected to the esophageal airbag supply device (23).

7. The multifunctional oropharyngeal ventilation tube capable of sealing the esophagus according to claim 6, characterized in that, The esophageal airbag ventilation tube (22) is disposed between the oropharyngeal ventilation main tube (1) and the inner wall of the oropharyngeal airbag (4), and the esophageal airbag ventilation tube (22) is fixed to the oropharyngeal ventilation main tube (1) by a fixing strap (3).

8. The multifunctional oropharyngeal ventilation tube capable of sealing the esophagus according to claim 2, characterized in that, An end-tidal CO2 monitoring channel (5) is also provided inside the side wall of the oropharyngeal ventilation main pipe (1); a monitoring pipe (51) connected to the end-tidal CO2 monitoring channel (5) is also provided on the baffle (11), and a connector is provided at the outer end of the monitoring pipe (51) for connecting the monitoring equipment.

9. The multifunctional oropharyngeal ventilation tube capable of sealing the esophagus according to claim 2, characterized in that, A high-flow oxygen inhalation channel (6) is also provided in the side wall of the oropharyngeal ventilation main pipe (1); a high-flow oxygen inhalation interface (61) is also provided on the baffle (11) to connect the high-flow oxygen inhalation channel (6) for connecting oxygen supply equipment.

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