Throat breather pipe

Abstract

The invention discloses a laryngeal breather pipe which comprises a breather pipe body, a breather cavity is formed in the breather pipe body, the breather pipe body is provided with a first sleeve bag used for sealing the glottis of a patient and a second sleeve bag used for sealing the esophagus of the patient, and the first sleeve bag and the second sleeve bag are filled with sponge-shaped materials respectively. The surface of each of the first cuff and the second cuff has a fixed shape and is deformable. The first sleeve bag and the second sleeve bag are filled with the sponge-shaped materials respectively, so that when the device is inserted into the body of a patient, due to the flexibility of the sponge-shaped materials, the insertion contact pressure between the device and the surface of internal tissue of the patient is small, insertion damage to the patient is avoided, the device can automatically recover to the original shape after being inserted, and the glottis and esophagus of the patient are closed; and the sealing performance is better.

Description

Technical Field

[0001] The present invention relates to the technical field of laryngeal airways, and in particular to a laryngeal airway. Background Art

[0002] During emergency rescue, ensuring the airway is unobstructed and maintaining normal oxygen exchange are the primary tasks when rescuing severely injured patients and patients with cardiopulmonary arrest. Rescuers must establish an artificial airway as soon as possible to ensure that the patient's heart and lungs can normally absorb oxygen from the external environment and reduce the risk of suffocation and brain death caused by respiratory disorders. Laryngeal airways are usually used to establish artificial airways. The existing laryngeal airway is equipped with two cuffs, which are used to close the patient's glottis and esophagus respectively, and is provided with a drainage cavity. When an artificial airway is established in the human body during emergency rescue, a cuff can better cooperate with the human glottis structure, thereby having a better sealing effect on the glottis and further improving the sealing effect of the trachea; the patient's esophagus is closed by another cuff, and the patient's esophagus is drained to prevent reflux and aspiration.

[0003] However, the cuffs of the laryngeal airway are generally inflatable cuffs or non-inflatable elastic cuffs made of elastomeric materials. The inflatable cuff is connected to an inflation tube for inflation, and the inflation tube is connected to a pressure indicator; the inflation status is monitored by the pressure indicator, and this technology requires the configuration of a pressure indicator, which is costly, and the inflatable cuff has a risk of air leakage during use; the non-inflatable elastic cuff has a small elastic deformation force and high hardness, which is inconvenient during insertion, and during the insertion process, it has a large squeezing force with the patient's internal cavity tissue, which is easy to cause insertion damage to the patient. Summary of the invention

[0004] The purpose of the present invention is to provide a laryngeal ventilator with a novel non-inflatable cuff structure to address the technical defects in the prior art.

[0005] The technical solution adopted to achieve the purpose of the present invention is: A laryngeal ventilator comprises a ventilator, wherein a ventilator cavity is arranged inside the ventilator, a first cuff for sealing a patient's glottis and a second cuff for sealing a patient's esophagus are arranged on the ventilator, the first cuff and the second cuff are respectively filled with sponge-shaped materials, so that the surfaces of the first cuff and the second cuff respectively have fixed shapes and can be deformed.

[0006] Wherein, a pressure tool is provided, which is connected to the first cuff and the second cuff through the cuff ventilation cavity inside the ventilation tube, and the pressure tool is used to provide pressure so that the first cuff and the second cuff are compressed and deformed due to fluid pressure.

[0007] Wherein, the pressure tool comprises a flexible catheter.

[0008] Wherein, a stop clamp / stopcock is arranged on the flexible conduit.

[0009] The machine end of the flexible conduit is connected with a suction connector for connecting to a suction tool that provides pressure.

[0010] Wherein, the capsule bodies of the first cuff and the second cuff are made of polymer materials.

[0011] Wherein, the sponge-shaped material includes memory foam.

[0012] The patient end of the ventilation tube is connected to a soft tip that is easy to insert into the patient's esophagus.

[0013] Wherein, an air outlet of the ventilation tube is arranged on the tube wall of the ventilation tube between the second cuff and the first cuff.

[0014] Wherein, at least one ventilation groove is arranged on one side of the patient end of the air outlet of the ventilation tube, which is formed by the tube wall being recessed toward the inside of the tube.

[0015] The laryngeal ventilation tube of the present invention has a first cuff and a second cuff filled with sponge-shaped materials, so that the surfaces of the first cuff and the second cuff have fixed shapes and can be deformed. When inserted into a patient's body, due to the flexible characteristics of the sponge-shaped material, the insertion contact pressure with the patient's internal cavity structure tissue is small, thereby avoiding insertion damage to the patient. After insertion, the laryngeal ventilation tube can restore its original shape by itself, sealing the patient's glottis and esophagus, and having better sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the laryngeal ventilator of the present invention.

[0017] Figure 2 It is an exploded schematic diagram of the laryngeal ventilator of the present invention.

[0018] Figure 3 It is a cross-sectional schematic diagram of the laryngeal ventilator of the present invention.

[0019] Figure 4 It is a schematic diagram of the laryngeal ventilator of the present invention in use. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] like Figures 1 to 4As shown, the laryngeal ventilation tube comprises a ventilation tube 1, in which a ventilation cavity 13 is arranged, and a first cuff 2 for closing the glottis of a patient and a second cuff 3 for closing the esophagus of the patient are arranged on the ventilation tube 1, and the first cuff and the second cuff are respectively filled with sponge-shaped materials, so that the surfaces of the first cuff and the second cuff respectively have a fixed shape and can be deformed.

[0022] Specifically, the first cuff is filled with a first sponge-shaped material 20, which is filled in a first capsule body 21 to form the first cuff 2, and the second cuff is filled with a second sponge-shaped material 30, wherein the second sponge-shaped material 30 is filled in a second capsule body 31 to form the second cuff 3, and the first sponge-shaped material 20 and the second sponge-shaped material 30 are prefabricated into predetermined fixed shapes, and their fixed shapes are adapted to the shapes of the first capsule body 21 and the second capsule body 31.

[0023] Among them, when the first sponge-shaped material 20 and the second sponge-shaped material 30 are in a free state, the inner surfaces of the first capsule 21 and the second capsule 31 are in contact with the surfaces of the first sponge-shaped material 20 and the second sponge-shaped material 30 filled therein, and will not squeeze the sponge-shaped material, nor will the sponge-shaped material be deformed or compressed. Under the action of the sponge-shaped material, the surfaces of the first capsule 21 and the second capsule 31 present a fixed shape structure that is closely matched with the patient's sealing position structure to form a closure on the patient's glottis and esophagus.

[0024] In some embodiments, the sponge-shaped material can be a slow-rebound artificial sponge with slow-rebound mechanical properties, such as a polyether polyurethane sponge or a memory sponge or a similar sponge material. The sponge-shaped material has good flexibility. When the cuff filled with it is inserted into the patient's body, the insertion pressure on the patient's internal cavity structure tissue is very small and can be almost ignored. It will not cause any insertion damage to the patient, and the sponge-shaped material can restore its fixed shape by itself without pressure, thereby sealing the patient's glottis and esophagus.

[0025] Preferably, the first capsule 21 and the second capsule 31 are made of polymer materials, and the shapes of the first cuff 2 and the second cuff 3 are the same as the cuff shape of the laryngeal ventilation tube in the prior art. After molding, they are sleeved on the outer surface of the ventilation tube 1 and are connected and fixed to the outer surface of the ventilation tube 1.

[0026] In a more preferred embodiment, a pressure tool is provided, and the pressure tool is connected to and communicated with the cuff ventilation cavity 8 inside the ventilation catheter 1, and the cuff ventilation cavity 8 leads to the first cuff 2 and the second cuff 3. The cavity surface inside the first cuff 2 and the second cuff 3 has ventilation holes to achieve communication with the inside of the first cuff 2 and the second cuff 3. The pressure tool is used to provide negative pressure, which can cause the first cuff 2 and the second cuff 3 to be compressed and deformed due to fluid pressure.

[0027] After the first cuff 2 and the second cuff 3 are mounted on the ventilation tube 1, there may be an air cavity between the first cuff 2, the second cuff 3 and the outer surface of the ventilation tube 1, or there may be no air cavity. Figure 3 As shown, if there is an air cavity between the first cuff 2 and the ventilation tube 1, and if there is no air cavity between the second cuff 3 and the ventilation tube 1, the other end of the cuff ventilation cavity 8 is closed, and the part wrapped by the first cuff 2 can be communicated with the air cavity between the first cuff 2 and the ventilation tube 1 or with the interior of the first cuff 2, and the first cuff 2 is compressed and deformed by fluid pressure, and the part wrapped by the second cuff 3 can be communicated with the interior of the second cuff 3, and the second cuff 3 is compressed and deformed by fluid pressure.

[0028] Specifically, the pressure tool is used to compress and deform the first cuff 2 and the second cuff 3 by sucking gas, so that during insertion, the first cuff 2 and the second cuff 3 can be inserted into the predetermined position in the patient's body in a more relaxed manner without squeezing the surrounding tissues at the predetermined position in the patient's body, and can avoid insertion damage to the patient. It should be noted that in the embodiment of the present application, the setting of the pressure tool is not necessary and can be selected as needed. It is preferred to set the pressure tool.

[0029] In some embodiments, in the embodiments of the present application, the pressure tool includes a flexible conduit 5, such as a flexible plastic tube, the end of which is connected to a suction connector 7 for easy connection to the suction tool. More preferably, in order to facilitate control and use, the flexible conduit is connected to a stopper clamp 6 or a stopcock. The stopper clamp can be implemented by using an available stopper clamp on an existing medical conduit.

[0030] When the pressure tool is used to perform suction to compress and deform the first cuff 2 and the second cuff 3, a suction tool (not shown) can be connected to the end of the flexible catheter through a suction connector 7. The suction tool is a tool such as a syringe. After the stop clamp 6 or the stopcock is opened, the suction tool can be connected to make the first cuff 2 and the second cuff 3 compressed and deformed due to the fluid pressure. After that, the stop clamp 5 or the stopcock can be closed to press the flexible catheter to prevent air leakage, so that the first cuff 2 and the second cuff 3 remain in a compressed and deformed state. At this time, the laryngeal ventilation tube 100 can be inserted. The laryngeal airway is inserted into the patient's oral cavity and enters a predetermined position. After entering the predetermined position, the stop clamp 6 or the stopcock is opened, and the normal air pressure gas of the external environment enters the first cuff 2 and the second cuff 3 through the flexible catheter. In the absence of fluid pressure formed by negative pressure, the first cuff 2 and the second cuff 3 automatically restore their original state due to their own elastic functions or properties. The first cuff 2 uses its outer surface to seal the patient's glottis structure, and the second cuff 3 uses its outer surface to seal the inner surface of the patient's esophagus 110 to form a seal, close the patient's glottis and close the patient's esophagus.

[0031] When performing first aid on a patient, after being inserted into the patient's mouth, the first cuff 2 can better cooperate with the human glottis structure, thereby having a better sealing effect on the glottis, further improving the sealing effect of the trachea, and the second cuff 3 is inserted to block the esophagus 110, and then the drainage tube can be used to suck away the vomit produced by the patient, thereby realizing the esophageal drainage function and preventing reflux and aspiration.

[0032] In some embodiments, the patient end of the ventilating tube is connected to a soft head 12 that is easy to insert into the patient's esophagus. The soft head 12 can be made of a silicone rubber medical polymer material with a certain elasticity, such as silicone rubber or other rubber polymer materials, and then bonded to the patient end of the ventilating tube, or can be made integrally with the ventilating tube; the soft head adopts an arc design with a certain angle, which can better ensure that the laryngeal ventilating tube is smoothly inserted into the esophagus and reduce damage to the human body cavity during the insertion process.

[0033] In some embodiments, the ventilation tube 11 is made of silicone rubber-like medical polymer materials with a certain elasticity, such as silicone rubber and other rubber polymer materials, which solves the problem of high hardness of traditional laryngeal airways, and silicone rubber has better biocompatibility with the human body. Combined with the setting of the soft head at the patient end, it can ensure that the laryngeal ventilation tube can be smoothly inserted into the esophagus and reduce damage to the human mucosa during the insertion process.

[0034] In a preferred embodiment, the outer surface of the ventilation tube is provided with a super-slip coating (not shown), such as white kerosene or similar materials. The super-slip coating on the surface of the tube makes it easier to insert the ventilation tube into the human body cavity without causing damage to the human body.

[0035] Among them, one end of the ventilation cavity 13 is the air outlet 9 of the ventilation tube, and the other end is the machine end of the ventilation tube. The ventilation tube takes in air from its machine end and exhausts air from the air outlet of the ventilation tube to form a ventilation cavity to supply air to the patient. The machine end of the ventilation tube 2 is connected to an air source connector 4, which can be connected to external equipment such as a ventilator or an anesthesia machine through the air source connector 4 to achieve ventilation after the artificial airway is established. The patient end and the machine end are based on the operator as a reference, and the "patient end" is the end with a longer distance relative to the operator, and the "machine end" is the end with a shorter distance relative to the operator.

[0036] The air outlet 9 of the ventilating tube 1 can be used to lead out the endotracheal tube 130. The position of the air outlet 9 of the ventilating tube is adjusted to align with the glottis, so that the endotracheal tube 130 can be quickly inserted into place. Through the air outlet of the ventilating tube, the endotracheal tube 130 can be led out. When the endotracheal tube needs to be connected, one end of the patient end of the endotracheal tube can be inserted through the machine end of the ventilating tube and extended through the air outlet of the ventilating tube. The endotracheal tube 130 can be inserted into the patient's trachea 120 to achieve ventilation. In an emergency, the airway safety can be ensured, and the placement and insertion of the endotracheal tube can be achieved without affecting the smooth ventilation above the glottis.

[0037] As a preferred embodiment, one side of the patient end of the air outlet of the ventilation tube 2 is provided with at least one ventilation groove 11 arranged along the length direction of the ventilation tube and formed by recessing the tube wall toward the inside of the tube. The setting of the ventilation groove 11 can ensure that the trachea will not be blocked during intubation, and oxygen can flow at any time.

[0038] In some embodiments, a notch 10 is formed along the length direction of the ventilation tube on the other side of the air outlet of the ventilation tube opposite to the ventilation groove 11, so that when the endotracheal tube is inserted, the air outlet of the ventilation tube can be opened on one side to facilitate the smooth insertion of the endotracheal tube.

[0039] In some embodiments, an esophageal drainage cavity 14 is arranged in the ventilation tube 1, which is separated from the ventilation cavity 13 and not connected. The soft head 12 has a drainage cavity hole connected to the esophageal drainage cavity 14, and the outer wall of the ventilation tube 1 has a channel opening (not shown, located between the first cuff 2 and the second cuff 3) connected to the esophageal drainage cavity 14 for connecting to the esophageal drainage channel (not shown).

[0040] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is therefore intended that all changes falling within the meaning and range of equivalent elements of the claims are included in the present invention.

[0041] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A laryngeal ventilator, comprising a ventilator, wherein a ventilator cavity is arranged inside the ventilator, a first cuff for closing a patient's glottis and a second cuff for closing a patient's esophagus are arranged on the ventilator, characterized in that: The first cuff and the second cuff are respectively filled with sponge-like materials, so that the surfaces of the first cuff and the second cuff have a fixed shape and are deformable.

2. The laryngeal ventilator according to claim 1, characterized in that: A pressure tool is provided, which is connected to the first cuff and the second cuff through the cuff ventilation cavity inside the ventilation tube. The pressure tool is used to provide pressure so that the first cuff and the second cuff are compressed and deformed due to fluid pressure.

3. The laryngeal ventilator according to claim 2, characterized in that: The pressure tool includes a flexible conduit.

4. The laryngeal ventilator according to claim 3, characterized in that: The flexible conduit is provided with a flow stop clamp / stopcock.

5. The laryngeal ventilator according to claim 3, characterized in that: The machine end of the flexible conduit is connected with a suction connector for connecting to a suction tool that provides pressure.

6. The laryngeal ventilator according to claim 1, characterized in that: The capsule bodies of the first cuff and the second cuff are made of polymer materials.

7. The laryngeal ventilator according to claim 1, characterized in that: The sponge-like material includes memory foam.

8. The laryngeal ventilator according to claim 1, characterized in that: The patient end of the ventilation tube is connected to a flexible tip that facilitates insertion into the patient's esophagus.

9. The laryngeal ventilator according to claim 1, characterized in that: An air outlet of the ventilation tube is arranged on the tube wall of the ventilation tube between the second cuff and the first cuff.

10. The laryngeal ventilator according to claim 9, characterized in that: At least one ventilation groove is arranged on one side of the patient end of the air outlet of the ventilation tube, which is formed by recessing the tube wall toward the inside of the tube.

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