Pharyngeal cavity oxygen supply device

Abstract

The utility model provides a pharyngeal cavity oxygen supply device which comprises an oxygen supply tube and a seam, a limiting fixing groove is formed in a pharyngeal cavity cannula channel, the limiting fixing groove is tangent to the pharyngeal cavity cannula channel and is arranged close to one side of an endoscope cannula channel, the limiting fixing groove is provided with a C-shaped opening, and the C-shaped opening is matched with the oxygen supply tube; a connector is arranged at one end of the oxygen supply pipe, an oxygen outlet hole is formed in the other end of the oxygen supply pipe, and a protruding point is arranged on the oxygen supply pipe and is in tight fit with the inner wall of the limiting fixing groove. The oxygen supply tube is fixed in the pharyngeal cavity intubation channel through the limiting fixing groove formed in the pharyngeal cavity intubation channel, the possible influence on the oxygen supply tube during endoscope operation is reduced, the flexible protection layer is arranged near the mouth ring, damage of the mouth ring to the mouth and lips of a patient is reduced, and the experience of a detected person is improved.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a pharyngeal oxygen delivery device. Background Technology

[0002] Currently, many painless digestive endoscopy procedures are performed under general anesthesia without endotracheal intubation. Because the patient is under general anesthesia, they are unconscious and have limited ventilation, requiring oxygen supply, currently provided via nasal cannula. While nasal cannula oxygenation can maintain effective oxygen supply for patients with good airway conditions, it cannot maintain effective oxygen supply for patients with airway narrowing after anesthesia, leading to hypoxia, posing a significant challenge and risk to painless anesthesia. Especially for obese patients, those with snoring, and those with sleep apnea, significant airway obstruction and respiratory depression are common after painless endoscopic anesthesia. Therefore, painful gastroscopy is generally preferred for these patients in current digestive endoscopy procedures, greatly increasing patient suffering and the difficulty of the endoscopist's operation. While endotracheal intubation anesthesia is the safest and most effective solution to these risks, it is expensive, cumbersome, has a long recovery time, and occupies a large amount of oral space, affecting the gastroscopy procedure. Therefore, this anesthetic method is not suitable for routine upper gastrointestinal endoscopy. Therefore, there is an urgent need for a pharyngeal oxygen delivery device for non-tracheal intubation anesthesia. Utility Model Content

[0003] The technical problem this invention aims to solve is to provide a pharyngeal oxygen delivery device that addresses the issues of significant airway obstruction and respiratory depression in obese patients with snoring or sleep apnea under non-endotracheal intubation general anesthesia (painless gastroscopy), while painful gastroscopy increases patient suffering and the difficulty of the endoscopist's procedure. It is primarily used for oxygen supply during gastroscopy under general anesthesia, preventing hypoxia due to post-anesthesia airway obstruction. A flexible protective layer is placed near the mouth ring to reduce damage to the patient's lips and improve the patient's experience.

[0004] To solve the above-mentioned technical problems, embodiments of this utility model provide a pharyngeal oxygen delivery device, including an oxygen delivery tube and a mouthpiece. An endoscopic cannula channel for an endoscopic cannula to pass through and a pharyngeal ventilation tube channel for a pharyngeal ventilation tube to pass through are formed through the mouthpiece. The endoscopic cannula channel is located at the center of the mouthpiece, and the pharyngeal ventilation tube channel is disposed on one side of the endoscopic cannula channel. A limiting and fixing groove is provided within the pharyngeal cannula channel. The limiting and fixing groove is tangential to the pharyngeal channel and disposed near the side of the endoscopic cannula channel. The limiting and fixing groove has a C-shaped opening, which is adapted to the oxygen delivery tube.

[0005] One end of the oxygen supply tube is provided with a connector, and the other end is provided with an oxygen outlet. The oxygen supply tube is provided with protrusions, which are tightly fitted with the inner wall of the limiting and fixing groove.

[0006] The width of the C-shaped opening is slightly smaller than the width of the protrusion.

[0007] The limiting and fixing groove has an annular cross-section, and the width of the C-shaped opening is less than or equal to the diameter of the limiting and fixing groove.

[0008] The inner wall of the limiting and fixing groove is provided with multiple protrusions, each of which is made of flexible frosted material, and the multiple protrusions are distributed along the inner circle of the inner wall.

[0009] The outer wall of the bite that comes into contact with air includes a flexible protective layer.

[0010] The flexible protective layer is made of any one of medical silicone, medical rubber, and medical latex.

[0011] The bite is made of resin, and the bite formed by combining the endoscopic cannula channel and the pharyngeal cannula channel is an integral structure.

[0012] The two sides of the bite are connected by the same strap.

[0013] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0014] (1) Compared with the traditional nasal oxygen tube, this utility model can extend the oxygen delivery tube into the pharyngeal cavity through the pharyngeal intubation channel, so that oxygen can be fully supplied to the patient. The oxygen delivery tube is fixed by the limiting and fixing groove, which reduces the possible impact on the endotracheal intubation during the endoscopy operation. The oxygen supply will not be affected by the patient's airway obstruction, so patients with severe obesity, sleep apnea and other conditions can also undergo painless endoscopic anesthesia. At the same time, the C-shaped opening makes it easy to insert and remove the oxygen delivery tube, and it is convenient to adjust the position of the oxygen delivery tube. The operation is convenient and quick, and it is easy for medical staff to fix or move the position of the pharyngeal intubation tube.

[0015] (2) In this utility model, a flexible protective layer is provided near the mouth ring body to reduce the damage of the mouth ring to the patient's lips and improve the experience of the test subject. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the bite structure in this utility model. Figure 1 ;

[0019] Figure 4 This is a schematic diagram of the bite structure in this utility model. Figure 2 ;

[0020] Figure 5 This is a schematic diagram of the oxygen supply tube in this utility model;

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Oxygen supply tube; 101. Raised dot; 102. Connector; 103. Oxygen outlet; 2. Biting edge; 21. Endoscopic cannulation channel; 22. Pharyngeal cannulation channel; 23. Limiting and fixing groove; 24. C-shaped opening; 25. Raised block. Detailed Implementation

[0023] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0024] like Figure 1 As shown, an embodiment of this utility model provides a pharyngeal oxygen delivery device, including an oxygen delivery tube 1 and a mouthpiece 2. An endoscopic cannula channel 21 for an endoscopic cannula to pass through and a pharyngeal cannula channel 22 for a pharyngeal ventilation tube to pass through are formed through the mouthpiece 2. The endoscopic cannula channel 21 is located at the center of the mouthpiece 2. The inner wall of the endoscopic cannula channel 21 has a smooth surface structure, which facilitates the endoscopic cannula to pass through the mouthpiece 2 and enter the oral cavity to perform endoscopic examinations on the patient. The pharyngeal cannulation channel 22 is located on one side of the endoscopic cannulation channel 21. A limiting and fixing groove 23 is provided in the pharyngeal cannulation channel 22. The limiting and fixing groove 23 is tangent to the pharyngeal cannulation channel 22 and is located close to the side of the endoscopic cannulation channel 21. The limiting and fixing groove 23 is provided with a C-shaped opening 24. The C-shaped opening 24 is adapted to the oxygen delivery tube 1. The width of the C-shaped opening 24 is slightly smaller than the width of the protrusion 101, which can effectively prevent the oxygen delivery tube 1 from falling off. The width of the C-shaped opening 24 is less than or equal to the diameter of the limiting and fixing groove 23, which makes it convenient to embed the oxygen delivery tube 1 into the limiting and fixing groove 23, and avoids the oxygen delivery tube 1 from slipping due to insecure binding and fastening with adhesive tape after lubrication.

[0025] One end of the oxygen supply tube 1 is provided with a connector 102, and the other end is provided with an oxygen outlet 103. The oxygen supply tube is provided with a protrusion 101, which is tightly fitted with the inner wall of the limiting and fixing groove 23.

[0026] The inner wall of the limiting and fixing groove 23 is provided with a plurality of protrusions 25, each of which is made of flexible frosted material. The plurality of protrusions 25 are distributed along the inner circle of the inner wall to increase the friction between the inner wall of the limiting and fixing groove 23 and the oxygen supply tube 1, thereby preventing the oxygen supply tube 1 from shifting. Moreover, the arrangement of the plurality of protrusions 25 can make the oxygen supply tube 1 stuck in the limiting and fixing groove 23, which can buffer the oxygen supply tube 1 and protect it from shaking when disturbed, thus affecting the insertion position of the oxygen supply tube 1. In addition, the limiting and fixing groove 23, together with the protrusions 25, effectively fixes the oxygen supply tube 1 without the need to use traditional tape for fixing.

[0027] The outer wall of the bite 2 that is in contact with air includes a flexible protective layer. The flexible protective layer is made of any one of medical silicone, medical rubber and medical latex. The flexible protective layer can protect the patient's lips from pressure during endoscopic examination.

[0028] The bite 2 is made of resin, and the bite formed by the endoscopic cannula channel 21 and the pharyngeal cannula channel 22 is an integral structure.

[0029] The two sides of the bite are connected by the same strap.

[0030] The working principle of this utility model is as follows:

[0031] During gastroscopy, the mouthpiece is inserted into the patient's mouth with the endoscope cannula channel facing the mouth. A flexible protective layer is placed over the lips, and the straps on both sides of the mouthpiece are secured to the patient's head for positioning. The oxygen supply is turned on, and after the patient is anesthetized, one end of the oxygen delivery tube (with the oxygen outlet) is inserted into the patient's mouth through the pharyngeal cannula channel and advanced into the pharynx. Once the tip of the tube reaches between the epiglottis and glottis, the protrusion on the tube is pressed into the C-shaped opening to fix the tube in place. The end of the tube with the connector is then connected to the central oxygen supply system, and the oxygen supply is turned on. Oxygen is then supplied to the patient through this pharyngeal oxygen delivery device. After the endoscopy, the C-shaped opening allows the oxygen delivery tube to be released from the mouthpiece, enabling adjustment of its position and facilitating tube replacement and repositioning by medical staff.

[0032] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A pharyngeal oxygen delivery device, comprising an oxygen delivery tube and a mouthpiece, wherein the mouthpiece has an endoscopic cannula channel for an endoscopic cannula to pass through and a pharyngeal cannula channel for a pharyngeal ventilation tube to pass through, characterized in that, The endoscopic cannula channel is located at the center of the bite, and the pharyngeal cannula channel is located on one side of the endoscopic cannula channel. A limiting and fixing groove is provided in the pharyngeal cannula channel. The limiting and fixing groove is tangent to the pharyngeal cannula channel and is located close to the side of the endoscopic cannula channel. The limiting and fixing groove is provided with a C-shaped opening, and the C-shaped opening is adapted to the oxygen delivery tube. One end of the oxygen supply tube is provided with a connector, and the other end is provided with an oxygen outlet. The oxygen supply tube is provided with protrusions, which are tightly fitted with the inner wall of the limiting and fixing groove.

2. The pharyngeal oxygen delivery device according to claim 1, characterized in that, The width of the C-shaped opening is slightly smaller than the width of the protrusion.

3. The pharyngeal oxygen delivery device according to claim 1, characterized in that, The cross-section of the limiting and fixing groove is annular, and the width of the C-shaped opening is less than or equal to the diameter of the limiting and fixing groove.

4. The pharyngeal oxygen delivery device according to claim 1, characterized in that, The inner wall of the limiting and fixing groove is provided with a plurality of protrusions, each of which is made of flexible frosted material, and the plurality of protrusions are distributed along the inner circle of the inner wall.

5. The pharyngeal oxygen delivery device according to claim 1, characterized in that, The outer wall of the bite that comes into contact with air includes a flexible protective layer.

6. The pharyngeal oxygen delivery device according to claim 5, characterized in that, The flexible protective layer is made of any one of medical silicone, medical rubber, and medical latex.

7. The pharyngeal oxygen delivery device according to claim 1, characterized in that, The bite is made of resin structural components, and the bite formed by the combination of the endoscopic cannula channel and the endotracheal cannula channel is an integral structure.

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