Oral cavity mouth gag assisting in tracheal intubation

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to an oral cavity mouth gag assisting in tracheal intubation, the oral cavity mouth gag comprises an upper lip support and a lower lip support, the left and right ends of the upper lip support and the lower lip support are rotationally connected through a spring, a horizontally arranged upper lip protection plate is fixed on the upper lip support, and the upper lip protection plate is bent upwards to form a vertical upper lip protection surface; an upper lip protection plate is fixed on the upper lip support, a lower lip protection plate is fixed on the lower lip support, the lower lip protection plate is bent downwards to form a lower lip protection surface which is vertically arranged, reinforcing supports are arranged on the upper lip protection plate and the lower lip protection plate in the extending direction of the oral cavity, and tooth opening plates are horizontally arranged at the ends, away from the upper lip protection surface and the lower lip protection surface, of the reinforcing supports. The device is convenient to use, simple to operate, simple in structure, low in cost and capable of effectively protecting the mouth and the lip of a patient on the basis of effectively assisting tracheal intubation, and has wider clinical application value.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to an oral opening device for assisting endotracheal intubation. Background Art

[0002] In clinical medical practice, it is often difficult to ensure that every patient is under intravenous anesthesia and muscle relaxation during assisted endotracheal intubation. Therefore, patients often have a trismus. In order to smoothly implement oral endotracheal intubation, medical staff sometimes use a tongue depressor to pry open the teeth, or insert a metal endotracheal laryngoscope directly into the patient's mouth and press down the upper jaw (including the upper lip and upper teeth) with great force to open the jaw and clear the airway. This direct force of a tongue depressor or endotracheal laryngoscope has a small contact area with the teeth and lips and a high pressure, so it is very easy to damage the patient's teeth and lips during the intubation process, causing ruptures or defects. In addition, in the clinical care of critically ill patients, sputum suction is a routine nursing operation, but for patients who do not cooperate with opening their mouths, have difficulty opening their mouths, and have a tongue root that falls back, medical staff are often helpless and find it difficult to complete the corresponding operation. They can only take compulsory measures when sputum suction is necessary.

[0003] Utility model patent CN208838814U discloses an oral intubation opener with lip protection function. The lip-shaped bracket of this technical solution needs to be used in conjunction with the tooth opener. When using it, the tooth opener needs to be matched with the lip-shaped bracket first, and then the jaws need to be opened and then taken out. This operation undoubtedly delays time and may cause the accessories to be lost. Utility model patent CN207950286U discloses an oral opener that can assist in endotracheal intubation. Although this technical solution can illuminate the oral cavity, it is difficult to insert it into the patient's oral cavity at the beginning due to its thin-necked vase shape, especially for patients with difficulty opening their mouths. Moreover, the inflation operation during use is also very troublesome. Utility model patent CN 208193364U discloses an opener for awake endotracheal intubation operation. This technical solution is provided with a tongue clamping plate for clamping the tongue and an endotracheal tube fixer between the upper support pad and the lower support pad, but the operation of fixing the tongue is very difficult to achieve.

[0004] Therefore, a mouth opener that is easy to use, simple to operate and can effectively protect the patient's lips is in urgent need for front-line emergency doctors, nursing nurses, etc. Summary of the invention

[0005] The present invention aims at the problems existing in a series of tracheal intubation openers in the above-mentioned prior art, summarizes the front-line clinical experience, and makes technical improvements on the basis of the existing tools. The technical problem to be solved is to provide an oral opener for assisting tracheal intubation, which is easy to use, simple to operate, simple in structure, low in cost, and can effectively assist tracheal intubation while protecting the patient's lips, and has a wider clinical application value.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an oral opener for auxiliary endotracheal intubation, comprising an upper lip bracket and a lower lip bracket which are rotatably connected by springs at left and right ends, a horizontally arranged upper lip guard plate is fixed on the upper lip bracket, the upper lip guard plate is bent upward to form a vertical upper lip protection surface, a lower lip guard plate is fixed on the lower lip bracket, the lower lip guard plate is bent downward to form a vertically arranged lower lip protection surface, the upper lip guard plate and the lower lip guard plate are both provided with reinforcement brackets in the direction in which the oral cavity extends, a tooth opening plate is horizontally provided at one end of the reinforcement bracket away from the upper lip protection surface and the lower lip protection surface, a T-shape is formed between the reinforcement bracket and the tooth opening plate, an opening handle extending along the direction of the upper lip bracket and the lower lip bracket is provided at one end of the reinforcement bracket close to the upper lip guard plate and the lower lip guard, and the opening handle between the reinforcement bracket of the upper lip guard plate and the reinforcement bracket of the lower lip guard plate is hinged to each other through a hinge shaft.

[0007] The above-mentioned oral opener for assisting tracheal intubation provided by the present invention further improves the existing tracheal intubation opener in clinical use, avoids the problems of complicated operation and easy loss of accessories caused by the separate setting of the lip protector and the tooth opener, and can assist doctors and nurses in quickly opening the patient's mouth and placing tracheal intubation instruments while achieving tooth opening and protecting the lips, thereby gaining time for the patient's treatment and improving the patient's treatment experience.

[0008] On the basis of the above technical solutions, the present invention may further have the following specific options or optimization options.

[0009] Specifically, the connecting ends of the upper lip support and the lower lip support are both provided with fixing rings, and the ends of the upper lip support and the lower lip support are provided with 1-3 fixing grooves that cooperate with the fixing rings. Because the upper lip support and the lower lip support are rotatably connected by a spring, the upper lip support and the lower lip support are separated from each other by the spring in the absence of external force. The above design can fix the distance between the upper lip support and the lower lip support, thereby further adjusting the size of the patient's oral opening. The above setting avoids the problem that the oral opening component of the prior art cannot be adjusted in size and therefore lacks flexibility, and is therefore more popular clinically.

[0010] Furthermore, the fixing collar is connected to the connecting ends of the upper lip bracket and the lower lip bracket by ropes or chains. The above design avoids the loss of the fixing collar and is more convenient and quick to use.

[0011] Specifically, a groove for engaging the endotracheal tube is provided at the bend between the lower lip guard plate and the lower lip protection surface. The above design can fix the endotracheal tube to a certain extent, preventing the endotracheal tube from moving in the patient's mouth and causing discomfort to the patient or the risk of the endotracheal tube falling off. Moreover, it further saves opening space for the patient and avoids the patient's mouth from being opened too much after the endotracheal tube is successfully inserted, causing discomfort to the patient's mouth.

[0012] Specifically, the width of the upper lip guard and the lower lip guard is 2.5-3.5 cm, and the length is 3-6 cm. The width of the upper lip guard and the lower lip guard in the above design is roughly the same as the width of the patient's mouth, so that the patient's mouth can be fully protected without causing damage to the patient's mouth. In addition, the tracheal intubation operation is performed in the middle of the patient's mouth, and the width of the upper lip guard and the lower lip guard can also be slightly smaller than the patient's mouth, which does not affect the function of the device to protect the lips of the mouth and the opening, and at the same time avoids supporting the mouth to cause discomfort to the patient.

[0013] Specifically, the end of the opening handle away from the upper lip guard and the lower lip guard is arc-shaped and has anti-slip threads. The above-mentioned pliers-shaped or scissors-shaped handle can facilitate the operation of medical staff and avoid the risk of slipping.

[0014] Furthermore, the upper lip guard and the lower lip guard are made of silicone or rubber, and the upper lip bracket, the lower lip bracket, the reinforcement bracket, the opening handle and the tooth opening plate are made of stainless steel. The upper lip guard and the lower lip guard are made of silicone or rubber to provide sufficient comfort and protection for the patient, and the support material is made of stainless steel to provide sufficient stability and rigidity, thereby assisting the operator to open the patient's mouth.

[0015] Furthermore, the upper lip guard and the lower lip guard are coated with a drug-loaded chitosan hydrogel on one side close to the patient's oral cavity. Specifically, the drug loaded by the drug-loaded chitosan hydrogel is a local anesthetic, analgesic, anti-inflammatory and antipruritic drug, wherein the drug loading mass concentration is 0.1-0.5%. Since chitosan and its derivatives have very good biocompatibility, biodegradability and multiple biological activities, they are suitable for use as drug sustained-release carriers and biomedical materials. Therefore, the present invention adopts drug-loaded chitosan hydrogel, which not only has a good antibacterial and hemostatic effect, but also can be coated with certain drugs, especially local anesthetics to relieve the discomfort of the patient's oral cavity. Furthermore, the drug-loaded chitosan hydrogel has a sustained-release effect and can provide patients with a more comfortable treatment experience for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a schematic structural diagram of an oral opening device for assisting endotracheal intubation.

[0017] Figure 2 The present invention is a front view of an oral opening device for assisting endotracheal intubation.

[0018] Figure 3 The present invention is a cross-sectional view of an upper lip guard plate of an oral opening device for assisting endotracheal intubation.

[0019] Figure 4 It is a structural schematic diagram of the endotracheal tube opener with lip protection function in the embodiment of the present invention in use.

[0020] 1. Upper lip bracket; 2. Lower lip bracket; 3. Upper lip guard plate; 4. Lower lip guard plate; 5. Upper lip protection surface; 6. Lower lip protection surface; 7. Reinforcement bracket; 8. Tooth opening plate; 9. Opening handle; 10. Hinge shaft; 11. Fixed ring; 12. Fixed groove; 13. Groove; 100. Drug-loaded chitin hydrogel. DETAILED DESCRIPTION

[0021] In order to better understand the present invention, the content of the present invention is further explained below in conjunction with the accompanying drawings and specific embodiments, but the content of the present invention is not limited to the following embodiments.

[0022] like Figure 1-4 As shown, the present invention provides an oral opener for assisting endotracheal intubation, comprising an upper lip bracket 1 and a lower lip bracket 2 which are rotatably connected at left and right ends by springs, the upper lip bracket 1 is fixed with a horizontally arranged upper lip guard plate 3, the upper lip guard plate 3 is bent upward to form a vertical upper lip protection surface 5, the lower lip bracket 2 is fixed with a lower lip guard plate 4, the lower lip guard plate 4 is bent downward to form a vertically arranged lower lip protection surface 6, the upper lip guard plate 3 and the lower lip guard plate 4 are both provided with a reinforcement bracket 7 in the direction in which the oral cavity extends, the reinforcement bracket 7 is horizontally provided with a tooth opening plate 8 at one end away from the upper lip guard plate 3 and the lower lip guard plate 4, the reinforcement bracket 7 and the tooth opening plate 8 are T-shaped, the reinforcement bracket 7 is provided with an opening handle 9 extending along the direction of the upper lip bracket 1 and the lower lip bracket 2 at one end close to the upper lip protection surface 5 and the lower lip protection surface 6, and the opening handle 9 between the reinforcement bracket 7 of the upper lip guard plate 3 and the reinforcement bracket 7 of the lower lip guard plate 4 is hinged to each other through a hinge shaft 10.

[0023] During actual operation, when using the above-mentioned oral opener for auxiliary tracheal intubation provided by the present invention, one end of the upper lip guard plate 3 and the lower lip guard plate 4 provided with the tooth opening plate 8 should be inserted between the patient's tightly closed teeth, and the opening handle 9 should be pressed to create a gap between the patient's teeth. The upper lip guard plate 3 and the lower lip guard plate 4 should be sent into the patient's mouth, and the upper lip protection surface 5 and the lower lip protection surface 6 should be fit with the patient's lips. The upper lip guard plate 3 should fit the upper palate of the mouth, and the lower lip guard plate 4 should cover the tongue part of the mouth, thereby setting a channel for the subsequent tracheal intubation operation while effectively protecting the soft tissue in the patient's mouth from damage by the tracheal intubation instrument.

[0024] Furthermore, the connecting ends of the upper lip support 1 and the lower lip support 2 are provided with a fixing ring 11, and the ends of the upper lip support 1 and the lower lip support 2 are provided with 1-3 fixing grooves 12 that cooperate with the fixing ring 11. According to actual needs, generally, the ends of the upper lip support 1 and the lower lip support 2 are provided with 3 fixing grooves 12 that cooperate with the fixing ring 11, so as to adjust the size of the patient's oral opening. Generally, the opening is 30°, 45° and 60°. Different opening degrees are set according to different treatment needs and oral conditions of patients.

[0025] Furthermore, the fixing ring 11 is connected to the connecting ends of the upper lip bracket 1 and the lower lip bracket 2 by ropes or chains. Generally, the ropes are made of nylon or cotton, and the chains are made of stainless steel. The materials used are reusable, easy to disinfect, and preferably antibacterial.

[0026] Specifically, a groove 13 for engaging the endotracheal tube is provided at the bend between the lower lip guard plate 3 and the lower lip protection surface 5. The above design can fix the endotracheal tube to a certain extent, preventing the endotracheal tube from moving in the patient's mouth and causing discomfort to the patient or the risk of the endotracheal tube falling off. Moreover, it further saves the patient's opening space and avoids the patient's mouth discomfort caused by excessive opening of the patient's mouth after the endotracheal tube is successfully inserted.

[0027] Specifically, the width of the upper lip guard 3 and the lower lip guard 4 is 2.5-3.5 cm, and the length is 3-6 cm. The width of the upper lip guard 3 and the lower lip guard 4 in the above design is roughly the same as the width of the patient's oral cavity, so that the patient's oral cavity can be fully protected without causing damage to the patient's oral cavity. In addition, the tracheal intubation operation is performed in the middle of the patient's oral cavity, and the width of the upper lip guard 3 and the lower lip guard 4 can also be slightly smaller than the patient's oral cavity, which does not affect the function of the device to protect the oral lips and the opening, and at the same time avoids supporting the oral cavity to cause discomfort to the patient.

[0028] Specifically, the end of the opening handle 9 away from the upper lip guard plate 3 and the lower lip guard plate 4 is arc-shaped and has anti-slip threads. The above-mentioned pliers-shaped or scissors-shaped handle can facilitate the operation of medical staff and avoid the risk of slipping.

[0029] Furthermore, the upper lip guard plate 3 and the lower lip guard plate 4 are made of silicone or rubber, and the upper lip bracket 1, the lower lip bracket 2, the reinforcement bracket 7, the opening handle 9 and the tooth opening plate 8 are made of stainless steel. The above materials have excellent antibacterial and antibacterial effects and can withstand repeated disinfection and use, thereby saving operating costs.

[0030] Furthermore, the upper lip guard 3 and the lower lip guard 4 are coated with a drug-loaded chitin hydrogel on one side close to the patient's oral cavity. Specifically, the drug loaded by the drug-loaded chitin hydrogel is a local anesthetic, analgesic, anti-inflammatory and antipruritic drug, wherein the drug loading mass concentration is 0.1-0.5%. Specifically, the local anesthetic, analgesic, anti-inflammatory and antipruritic drugs include but are not limited to any one or more of procaine, bupivacaine, levobupivacaine, tetracaine, ropivacaine, etidocaine, articaine, lidocaine, mepivacaine, prilocaine and hydroxyethylcaine. The chitosan gel is purchased from commercially available medical products, and then the drug-loaded chitosan hydrogel is obtained by a certain preparation method with the loaded drug. The preparation method includes but is not limited to mixing under specific conditions, or preparing by other means reported in the literature so that it has a certain sustained-release and controlled-release effect.

[0031] The above-mentioned oral opening device for assisting endotracheal intubation provided by the present invention can not only assist medical staff in the treatment and nursing operations during the clinical rescue and nursing of critically ill patients, but also improve the comfort of patients during treatment to a certain extent. Moreover, the above-mentioned oral opening device for assisting endotracheal intubation combined with the use of drug-loaded chitin gel can further improve the treatment effect, broaden the idea of ​​drug administration, alleviate the discomfort of patients during treatment, and provide a new idea for medical equipment combined with drug administration treatment.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A mouth opening device for assisting endotracheal intubation, characterized in that: The invention comprises an upper lip support (1) and a lower lip support (2) which are rotatably connected at left and right ends by springs, wherein a horizontally arranged upper lip guard plate (3) is fixed on the upper lip support (1), and the upper lip guard plate (3) is bent upward to form a vertical upper lip protection surface (5), and a lower lip guard plate (4) is fixed on the lower lip support (2), and the lower lip guard plate (4) is bent downward to form a vertically arranged lower lip protection surface (6), and the upper lip guard plate (3) and the lower lip guard plate (4) are both provided with a reinforcement support (7) along the direction in which the oral cavity extends, and the reinforcement support (7) is away from the upper lip A tooth opening plate (8) is horizontally provided at one end of the guard plate (3) and the lower lip guard plate (4); a T-shape is formed between the reinforcement bracket (7) and the tooth opening plate (8); an opening handle (9) extending along the direction of the upper lip bracket (1) and the lower lip bracket (2) is provided at one end of the reinforcement bracket (7) close to the upper lip protection surface (5) and the lower lip protection surface (6); the opening handle (9) between the reinforcement bracket (7) of the upper lip guard plate (3) and the reinforcement bracket (7) of the lower lip guard plate (4) are hinged to each other through a hinge shaft (10).

2. The oral opening device for assisting endotracheal intubation according to claim 1, characterized in that: The connecting ends of the upper lip bracket (1) and the lower lip bracket (2) are both provided with fixing rings (11), and the ends of the upper lip bracket (1) and the lower lip bracket (2) are provided with 1 to 3 fixing grooves (12) that cooperate with the fixing rings (11).

3. The oral opening device for assisting endotracheal intubation according to claim 2, characterized in that: The fixing collar (11) is connected to the connecting ends of the upper lip bracket (1) and the lower lip bracket (2) via a rope or a chain.

4. The oral opening device for assisting endotracheal intubation according to claim 1, characterized in that: The width of the upper lip guard plate (3) and the lower lip guard plate (4) is 2.5-3.5 cm, and the length is 3-6 cm.

5. The oral opening device for assisting endotracheal intubation according to claim 1, characterized in that: The end of the opening handle (9) away from the upper lip guard plate (3) and the lower lip guard plate (4) is arc-shaped and is provided with anti-slip threads.

6. The oral opening device for assisting endotracheal intubation according to any one of claims 1 to 5, characterized in that: The upper lip guard (3) and the lower lip guard (4) are made of silicone or rubber, and the upper lip bracket (1), the lower lip bracket (2), the reinforcement bracket (7), the opening handle (9) and the tooth opening plate (8) are made of stainless steel.

7. The oral opening device for assisting endotracheal intubation according to any one of claims 1 to 5, characterized in that: The upper lip guard (3) and the lower lip guard (4) are coated with a drug-loaded chitosan hydrogel on one side close to the patient's oral cavity.

8. The oral opening device for assisting endotracheal intubation according to claim 7, characterized in that: The drug loaded in the drug-loaded chitin hydrogel is a local anesthetic, analgesic, anti-inflammatory and antipruritic drug, wherein the drug loading mass concentration is 0.1-0.5%.

9. The oral opening device for assisting endotracheal intubation according to claim 8, characterized in that: Local anesthetic analgesic, anti-inflammatory and antipruritic drugs include, but are not limited to, any one or more of procaine, bupivacaine, levobupivacaine, tetracaine, ropivacaine, etidocaine, articaine, lidocaine, mepivacaine, prilocaine and hydroxyethylcaine.

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