A new conscious tracheal intubation surface anesthesia device

Abstract

The utility model provides a novel clear tracheal tube surface anesthesia device, include: atomization pipe, atomization pipe includes the section of going into, atomization section and oxygen section, the section of going into, atomization section and oxygen section are connected in proper order, and the one end of oxygen section is connected with oxygen machine away from atomization section, and the pipe diameter of section of going into and oxygen section is same, and the pipe diameter of atomization section is less than oxygen section, and both ends of atomization section are connected with section of going into and oxygen section through two inclined pipes respectively. The section of going into, atomization section, oxygen section and two inclined pipes jointly constitute one end venturi pipeline, and the local anesthetic of injection is inhaled simultaneously by atomization section, and the negative pressure area formed in the laryngeal tube by the high -speed flow of atomization section oxygen, and the local anesthetic is sheared into fog particle, and the local anesthetic after atomization enters the throat pipe from the section of going into and then enters the shower head, and is sprayed into the throat of patient, and the pipeline structure is simple, and simple to use, and the injection speed of medical staff has no too big request, and the local anesthetic is atomized through venturi effect, and the atomization effect is better.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a novel awake endotracheal intubation surface anesthesia device. Background Technology

[0002] Awake endotracheal intubation is a technique performed under local anesthesia and moderate sedation while the patient is conscious and breathing spontaneously. Its core purpose is to reduce the risk of fatal airway instability that may occur after general anesthesia induction in high-risk patients.

[0003] Before awake endotracheal intubation, thorough topical anesthesia or nerve block of the pharynx and larynx is crucial for successful intubation. To reduce patient discomfort and decrease the endotracheal intubation reflex, the local anesthetic should be nebulized as much as possible and sprayed onto the surface of the pharyngeal tissues. Currently, in topical anesthesia methods, the atomization effect of the local anesthetic solution is relatively low when using traditional laryngeal tubes or manual sprayers, resulting in poor topical anesthesia of the pharynx and larynx. Increased dosage of local anesthetic can also lead to the risk of systemic toxicity.

[0004] How to provide a novel, easy-to-operate, and highly effective atomized surface anesthesia device for conscious endotracheal intubation is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a novel awake endotracheal intubation surface anesthesia device, so as to solve at least one of the above-mentioned technical problems.

[0006] To solve the above-mentioned technical problems, this utility model provides a novel awake endotracheal intubation surface anesthesia device, comprising: a nebulizing tube, the nebulizing tube including an insertion section, a nebulizing section and an oxygen inlet section, the insertion section, the nebulizing section and the oxygen inlet section being connected in sequence, the end of the oxygen inlet section away from the nebulizing section being connected to an oxygen generator, the insertion section and the oxygen inlet section having the same diameter, the nebulizing section having a smaller diameter than the oxygen inlet section, and the two ends of the nebulizing section being connected to the insertion section and the oxygen inlet section respectively through two inclined tubes; a laryngeal tube, one end of the laryngeal tube being connected to the end of the insertion section away from the nebulizing section, and the other end of the laryngeal tube being connected to a nozzle; and a drug infusion assembly, the drug infusion assembly being disposed in the middle of the nebulizing section.

[0007] Optionally, the diameter of the atomizing section is 1 / 4 of the diameter of the oxygen inlet section, and the inclination angle of the two inclined tubes is 30°.

[0008] Optionally, the length of the atomizing section is 10 mm.

[0009] Optionally, the injection assembly includes: a connecting tube, one end of which is connected to the middle of the nebulizing section; and a positive pressure connector, the other end of which is connected to the connecting tube and connected to the local anesthetic injector.

[0010] Optionally, a grid is provided at the connection between the atomizing section and the oxygen inlet section.

[0011] Optionally, the head of the nozzle is a hexagonal pyramid, the tip of the hexagonal pyramid is rounded, the inclined angle of the hexagonal pyramid is 30°, and the six inclined faces of the hexagonal pyramid are evenly arranged with nozzles with a diameter of 0.1 mm.

[0012] Optionally, the end of the probe section away from the atomizing section is provided with an internal thread, and the end of the throat tube is provided with an external thread. The end of the throat tube is detachably connected to the probe section through the thread.

[0013] Optionally, the diameter of the trachea is smaller than that of the insertion section, the trachea is made of silicone, and the insertion section, the atomizing section, and the oxygen inlet section are made of medical-grade polycarbonate.

[0014] Optionally, a quick connector is provided at the end of the oxygen inlet section away from the atomizing section.

[0015] Beneficial effects:

[0016] This invention provides a novel awake endotracheal intubation surface anesthesia device. When surface anesthesia of the pharynx and larynx is required, one end of the device connected to the nozzle is inserted into the patient's pharynx and larynx. An oxygen concentrator supplies oxygen to the oxygen inlet section. Oxygen flows from the larger diameter inlet section through an inclined tube to a smaller diameter nebulizer section, then from the nebulizer section through another inclined tube to the larger diameter insertion section, and finally enters the pharynx and is ejected from the nozzle. The insertion section, nebulizer section, oxygen inlet section, and two inclined tubes together constitute a Venturi tube at one end. As the oxygen passes through the nebulizer section, its cross-sectional area gradually decreases. The reduced pressure and increased velocity of compressed air create an adsorption effect on the drug delivery component of the nebulizer section. At this time, the drug delivery component connected to the nebulizer section injects local anesthetic. The injected local anesthetic is simultaneously drawn into the nebulizer section. The high-speed oxygen flow within the nebulizer section creates a negative pressure zone, shearing the local anesthetic into atomized droplets. The atomized local anesthetic then enters the larynx through the probe section and then the nozzle, spraying it into the patient's throat. This tubing system is simple in structure, easy to use, and does not place high demands on the injection speed of medical personnel. The nebulization of the local anesthetic utilizes the Venturi effect, resulting in better atomization.

[0017] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a planar structure provided for an embodiment of this application;

[0020] Figure 2 This is a perspective view of the planar structure of the atomizing tube provided in an embodiment of this application.

[0021] Figure label:

[0022] 1. Atomizing tube; 11. Probe section; 12. Atomizing section; 13. Oxygen inlet section; 14. Inclined tube; 15. Grille; 16. Quick connector;

[0023] 2. Throat; 21. Nozzle; 22. Spray hole;

[0024] 3. Injection assembly; 31. Connecting pipe; 32. Positive pressure connector. Detailed Implementation

[0025] The technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments in this specification are within the protection scope of this utility model.

[0026] Furthermore, in the embodiments of this specification, when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intervening component present. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intervening component present.

[0027] Please see Figure 1-2This embodiment provides a novel awake endotracheal intubation surface anesthesia device, which includes: a nebulizing tube 1, which includes an insertion section 11, a nebulizing section 12, and an oxygen inlet section 13, which are connected in sequence. The end of the oxygen inlet section 13 away from the nebulizing section 12 is connected to an oxygen generator. The insertion section 11 and the oxygen inlet section 13 have the same diameter, while the diameter of the nebulizing section 12 is smaller than that of the oxygen inlet section 13. Both ends of the nebulizing section 12 are connected to the insertion section 11 and the oxygen inlet section 13 respectively through two inclined tubes; a larynx 2, one end of which is connected to the end of the insertion section 11 away from the nebulizing section 12, and the other end of which is connected to a nozzle 21; and a drug injection assembly 3, which is disposed in the middle of the nebulizing section 12.

[0028] Specifically, when awake intubation with pre-existing laryngeal anesthesia is required, one end of the device, the laryngeal tube 2 connected to the nozzle 21, is inserted into the patient's pharynx. The oxygen concentrator delivers oxygen to the oxygen inlet section 13. Oxygen flows from the larger diameter inlet section 13 through an inclined tube to the smaller diameter nebulizer section 12, then from the nebulizer section 12 through another inclined tube to the larger diameter insertion section 11, and finally enters the laryngeal tube 2 from the insertion section 11 and exits from the nozzle 21. The insertion section 11, nebulizer section 12, oxygen inlet section 13, and the two inclined tubes together form a Venturi tube. As oxygen passes through the nebulizer section 12, the cross-section gradually decreases, and the compressed air... As the pressure decreases and the flow rate increases, an adsorption effect is generated on the drug injection component 3 of the nebulization section 12. At this time, the drug injection component 3 connected to the nebulization section 12 injects local anesthetic. The injected local anesthetic is simultaneously inhaled by the nebulization section 12. Through the negative pressure zone formed by the high-speed oxygen flow in the nebulization section 12 within the laryngeal tube, the local anesthetic is sheared into atomized particles. The atomized local anesthetic then enters the laryngeal tube 2 through the probe section 11 and then enters the nozzle 21, which is sprayed into the patient's pharynx. This tubing has a simple structure and is easy to use. It does not place high demands on the injection speed of medical personnel. The nebulization of local anesthetic through the Venturi effect results in better atomization effect.

[0029] In some possible implementations, the diameter of the atomizing section 12 is 1 / 4 of the diameter of the oxygen inlet section 13, and the inclination angle of both inclined pipes is 30°. The length of the atomizing section 12 is 10 mm.

[0030] Specifically, the ratio of the diameter of the atomizing section 12 to the oxygen inlet section 13, the tilt angle of the inclined tube, and the length of the atomizing section 12 all affect the effect of the Venturi tube on increasing the airflow speed. The parameters indicated above can meet the requirements of the device for increasing the oxygen flow rate, and the atomization effect is good.

[0031] In some possible implementations, the drug delivery assembly 3 includes: a connecting tube 31, one end of which is connected to the middle of the nebulizing section 12; and a positive pressure connector 32, which is connected to the other end of the connecting tube 31 and is connected to the local anesthetic injector.

[0032] Specifically, the syringe is connected through the positive pressure connector 32, which is a one-way valve. The local anesthetic injector is connected to the nebulization section 12 through the positive pressure connector 32. The positive pressure connector can ensure that the local anesthetic flows unidirectionally into the nebulization section pipeline, preventing oxygen passing through the nebulization section 12 from rushing into the injector and causing local anesthetic backflow. The connecting tube 31 extends the positive pressure connector 32 and the nebulization section 12 by one end.

[0033] In some possible implementations, a grid 14 is provided at the connection between the atomizing section 12 and the oxygen supply section 13.

[0034] Specifically, the grid 14 set at the connection between the nebulization section 12 and the oxygen inlet section 13 can disturb the oxygen in the oxygen inlet section 13, thereby increasing the turbulence of the oxygen flow and improving the nebulization effect of the local anesthetic entering the nebulization section 12.

[0035] In some possible implementations, the head of the nozzle 21 is a hexagonal pyramid with a rounded end. The inclined angle of the hexagonal pyramid is 30°, and the six inclined surfaces of the hexagonal pyramid are evenly arranged with nozzles 22 with a diameter of 0.1 mm.

[0036] Specifically, the head of the nozzle 21 is hexagonal pyramidal, and the head of the nozzle 21 has six spray surfaces. The six spray surfaces can spray the anesthetic liquid more comprehensively onto the throat area where the nozzle 21 is located. Each of the six spray surfaces has multiple nozzles 22, and its 30° tilt angle also improves the coverage of the sprayed local anesthetic.

[0037] In some possible implementations, the end of the probe section 11 furthest from the nebulizer section 12 is provided with an internal thread, and one end of the throat tube 2 is provided with an external thread. One end of the throat tube 2 is detachably connected to the probe section 11 via the thread. The diameter of the throat tube 2 is smaller than that of the probe section 11. The throat tube 2 is made of silicone material, while the probe section 11, the nebulizer section 12, and the oxygen inlet section 13 are made of medical-grade polycarbonate material.

[0038] Specifically, the larynx 2 has a smaller diameter, making it easier to insert into the patient's throat with less discomfort. The larynx 2 is made of medical-grade silicone, which will not cause any reaction to the patient and is relatively soft, causing less damage to the patient's throat. The insertion section 11, nebulization section 12, and oxygen inlet section 13 of the nebulizer tube 1 are made of relatively hard medical-grade polycarbonate material to ensure that the structure of the venturi tube will not be squeezed and deformed, affecting the speed-increasing effect.

[0039] In some possible implementations, a quick connector is provided at the end of the oxygen inlet section 13 away from the atomizing section 12.

[0040] Specifically, quick couplings are more convenient for connecting oxygen generator tubing and provide better sealing, preventing oxygen leakage.

[0041] Finally, it should be noted that the above embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. All should be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

[0042] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A novel endotracheal intubation surface anesthesia device, characterized in that, include: Atomizing tube (1) includes an insertion section (11), an atomizing section (12), and an oxygen inlet section (13). The insertion section (11), the atomizing section (12), and the oxygen inlet section (13) are connected in sequence. The end of the oxygen inlet section (13) away from the atomizing section (12) is connected to an oxygen generator. The insertion section (11) and the oxygen inlet section (13) have the same diameter. The diameter of the atomizing section (12) is smaller than that of the oxygen inlet section (13). The two ends of the atomizing section (12) are connected to the insertion section (11) and the oxygen inlet section (13) respectively through two inclined tubes (14). The throat (2) is connected at one end to the end of the probe section (11) away from the atomizing section (12), and the other end of the throat (2) is connected to the nozzle (21); The drug injection assembly (3) is disposed in the middle of the atomizing section (12).

2. The novel awake endotracheal intubation surface anesthesia device according to claim 1, characterized in that: The diameter of the atomizing section (12) is 1 / 4 of the diameter of the oxygen inlet section (13), and the inclination angle of the two inclined pipes (14) is 30°.

3. The novel awake endotracheal intubation surface anesthesia device according to claim 2, characterized in that: The length of the atomizing section (12) is 10 mm.

4. The novel awake endotracheal intubation surface anesthesia device according to claim 1, characterized in that, The drug delivery assembly (3) includes: A connecting tube (31), one end of which is connected to the middle of the atomizing section (12); Positive pressure connector (32) is connected to the other end of the connecting tube (31) and is connected to the local anesthetic injector.

5. A novel awake endotracheal intubation surface anesthesia device according to claim 4, characterized in that: A grid (15) is provided at the connection between the atomizing section (12) and the oxygen supply section (13).

6. A novel awake endotracheal intubation surface anesthesia device according to claim 5, characterized in that: The head of the nozzle (21) is a hexagonal pyramid, the tip of the hexagonal pyramid is rounded, the inclined angle of the hexagonal pyramid is 30°, and the six inclined surfaces of the hexagonal pyramid are evenly arranged with nozzles (22) with a diameter of 0.1 mm.

7. A novel awake endotracheal intubation surface anesthesia device according to any one of claims 1-6, characterized in that: The probe section (11) has an internal thread at one end away from the atomizing section (12), and the throat tube (2) has an external thread at one end. The throat tube (2) is detachably connected to the probe section (11) via the thread.

8. A novel awake endotracheal intubation surface anesthesia device according to claim 7, characterized in that: The diameter of the trachea (2) is smaller than that of the probe section (11). The trachea (2) is made of silicone material, and the probe section (11), the atomizing section (12) and the oxygen inlet section (13) are made of medical polycarbonate material.

9. A novel awake endotracheal intubation surface anesthesia device according to claim 8, characterized in that: A quick connector (16) is provided at the end of the oxygen inlet section (13) away from the atomizing section (12).

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