Throat breather pipe

Abstract

The utility model discloses a laryngeal breather pipe which comprises a breather pipe body, a breather cavity and an esophagus drainage cavity are arranged in the breather pipe body, a laryngeal cuff and an esophagus cuff are arranged on the breather pipe body, and an air outlet of the breather pipe body is formed in the pipe wall of the pipe section, between the esophagus cuff and the laryngeal cuff, of the breather pipe body. The patient end of the breather pipe is connected with a soft head which can be conveniently inserted into the esophagus of a patient, a drainage hole communicated with an esophagus drainage cavity is formed in the soft head, the laryngeal cuff is arranged between the esophagus cuff and the machine end of the breather pipe, an esophagus drainage channel is formed in the outer wall of the breather pipe, and the esophagus drainage channel is communicated with the esophagus drainage cavity. And the esophagus drainage channel is communicated with the esophagus drainage cavity. The ventilation cavity and the esophagus drainage cavity are formed in the ventilation pipe, and the glottis is closed through the laryngeal cuff; the esophagus of a patient is sealed through the esophagus cuff, esophagus drainage is conducted on the patient, and reflux and aspiration are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of laryngeal airways, in particular to a laryngeal ventilator. Background Art

[0002] In emergency rescue, ensuring the patency of the airway and maintaining normal oxygen exchange are the primary tasks when rescuing seriously 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. However, existing laryngeal airways cannot achieve esophageal drainage for patients to prevent reflux and aspiration. In addition, laryngeal airways are generally made of medical plastics, such as PVC, which has a high hardness. When implanted or inserted into the human body to establish an airway, it usually causes trauma to the mucous membrane on the surface of the human cavity. Utility Model Content

[0003] The utility model aims to provide a laryngeal ventilator in view of the technical defects in the prior art.

[0004] The technical solution adopted to achieve the purpose of this utility model is:

[0005] A laryngeal ventilator comprises a ventilator, wherein a ventilator cavity and an esophageal drainage cavity are arranged in the ventilator, a laryngeal cuff and an esophageal cuff are arranged on the ventilator, an air outlet of the ventilator is arranged on the wall of the ventilator segment between the esophageal cuff and the laryngeal cuff, a patient end of the ventilator is connected to a soft head which is convenient for insertion into the patient's esophagus, a drainage hole which is connected to the esophageal drainage cavity is arranged in the soft head, the laryngeal cuff is arranged between the esophageal cuff and the machine end of the ventilator, an esophageal drainage channel is arranged on the outer wall of the ventilator, and the esophageal drainage channel is connected to the esophageal drainage cavity.

[0006] Wherein, the ventilation pipe and the soft head are fixed in a butt joint manner, and the hardness of the material of the soft head is lower than the hardness of the material of the ventilation pipe.

[0007] The utility model provides a ventilation cavity and an esophageal drainage cavity in the ventilation tube, so that when an artificial airway is established in the human body during emergency treatment, the laryngeal cuff can better cooperate with the human glottis structure, thereby playing a better sealing role on the glottis and further improving the sealing effect of the trachea; the esophagus of the patient is sealed by the esophageal cuff, and the esophagus of the patient is drained to prevent reflux and aspiration. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the laryngeal ventilating tube of the utility model.

[0009] Figure 2It is a schematic diagram of the soft head of the laryngeal ventilating tube of the utility model.

[0010] Figure 3 It is a schematic diagram of the laryngeal ventilator of the utility model in use state.

[0011] Figure 4 It is a front schematic diagram of the laryngeal ventilator of the utility model.

[0012] Figure 5 yes Figure 4 BB section view.

[0013] Figure 6 yes Figure 4 AA section view. DETAILED DESCRIPTION

[0014] The present invention is 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.

[0015] like Figures 1 to 6 As shown, a laryngeal ventilator 100 comprises a ventilator 1, wherein a ventilator cavity 15 and an esophageal drainage cavity 14 are arranged along the axis of the ventilator, a laryngeal cuff 2 and an esophageal cuff 3 are arranged on the ventilator, a soft head 4 is arranged at the patient end of the esophageal cuff 3 for easy insertion into the patient's esophagus 110, the laryngeal cuff is arranged between the esophageal cuff and the machine end of the ventilator, an esophageal drainage channel 7 is arranged on the outer wall of the ventilator, and the The patient end of the esophageal drainage channel 7 is connected to the esophageal drainage cavity 14 formed in the ventilation tube. A drainage hole 16 connected to the esophageal drainage cavity 14 is arranged in the soft head along its axis. An air outlet 8 of the ventilation tube, i.e., a ventilation outlet of the ventilation cavity, is provided on the tube wall of the ventilation tube between the esophageal cuff and the laryngeal cuff. The esophageal drainage cavity 14 is separated from the ventilation cavity 15 in the ventilation tube. The air outlet 8 of the ventilation tube can also be used to lead out the endotracheal tube 10.

[0016] Among them, one end of the ventilation cavity 15 is the air outlet 8 of the ventilation tube, and the other end is the machine end of the ventilation tube. The machine end of the ventilation tube is connected to the air source connector 5, which can be connected to external equipment such as a ventilator or an anesthesia machine through the air source connector 5 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.

[0017] Preferably, the ventilation tube 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.

[0018] When performing first aid on a patient, after being inserted into the patient's mouth, the laryngeal cuff can better cooperate with the human glottis structure, thereby achieving a better sealing effect on the glottis, further improving the sealing effect of the trachea, and blocking the esophagus through the esophageal cuff, and then the drainage tube can suck away the vomit produced by the patient, realizing the esophageal drainage function and preventing reflux and aspiration.

[0019] The position of the air outlet 8 of the ventilating tube is adjusted to align with the glottis, so that the tracheal tube can be quickly inserted into place when inserted. In this way, the tracheal tube can be led out through the air outlet of the ventilating tube. When the tracheal tube needs to be connected, one end of the patient end of the tracheal tube can be inserted through the machine end of the ventilating tube and extended through the air outlet of the ventilating tube, and the tracheal tube 10 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 tracheal tube can be achieved without affecting the smooth ventilation above the glottis.

[0020] As a preferred embodiment, one side of the patient end of the air outlet of the ventilation tube has at least one ventilation groove 13 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 13 can ensure that the trachea will not be blocked during intubation and oxygen can flow at any time.

[0021] A notch 12 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 13, 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.

[0022] Preferably, an opening 11 connected to the esophageal drainage cavity 14 is formed on the outer surface of the tube section between the patient end of the ventilation tube and the air outlet 8 of the ventilation tube. The esophageal drainage channel 7 passes through the laryngeal cuff and is connected to the opening 11 to communicate with the esophageal drainage cavity. The esophageal drainage cavity is separated from the air outlet of the ventilation tube and is not connected, thereby achieving a disconnection and separation from the ventilation cavity. 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, thereby supplying air to the patient.

[0023] The esophageal drainage cavity 14 inside the ventilation tube is communicated with the drainage hole 16 inside the soft head 4, and is communicated with the external esophageal drainage channel 7 through the opening 11, forming an integral drainage channel.

[0024] Preferably, the esophageal drainage channel and the ventilation tube are an integrated structure. Of course, they can also be manufactured in separate parts, bonded together or tied together, and the patient end of the esophageal drainage channel is bonded and fixed to the opening 11 on the ventilation tube, so that the patient end of the ventilation tube and the esophageal drainage cavity formed in the soft head can be connected.

[0025] In addition, in order to facilitate the inflation of the laryngeal cuff and the esophageal cuff, an airway (not shown) for inflating the laryngeal cuff and the esophageal cuff is formed on the channel wall of the esophageal drainage channel, and the machine end of the airway is connected to one end of the inflation tube 6, and the other end of the inflation tube is connected to the pressure indicator 9. The inflation status can be easily grasped through the pressure indicator.

[0026] As a preferred embodiment, the outer surface of the ventilation tube is provided with a super-slip coating, which can be formed by white gasoline or similar materials. The super-slip coating on the surface of the tube body makes it easier to insert the ventilation tube into the human body cavity without causing damage to the human body.

[0027] In some embodiments, the soft head 4 is bonded to the patient end of the ventilation tube 1 (the patient end of the esophageal drainage cavity of the ventilation tube 1) and to the patient end of the esophageal cuff, and the patient end thereof adopts an arc head structure and has a certain inclination angle, that is, the patient end of the soft head is formed by beveling to form an inclined main structure, and the front end of the inclined main structure forms an arc head, such as Figure 2 As shown, it includes an arc head 42 with an arc-shaped end face located on one side of the central axis of the soft head 4. The inclined surface of one side of the arc head 42 near the central axis is concave by a certain arc to form a first arc surface 43 connected to the arc head 42, and the other side opposite to the first arc surface 43 forms a second arc surface 41, and one side of the arc head 42 is connected to the outer circumferential surface of the base of the soft head 4 through the second arc surface 41; the soft head 4 can be made of silicone rubber medical polymer materials with a certain elasticity, such as silicone rubber and other rubber polymer materials, which are independently made and bonded to the patient end of the ventilation tube, or can be made in one piece with the ventilation tube. The soft head at the patient end of the ventilation tube adopts an arc design with a certain angle, which can better ensure that the laryngeal airway is smoothly inserted into the esophagus and reduce the damage to the human body cavity during the insertion process.

[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model.

[0029] Therefore, no matter from which point of view, the embodiments should be regarded as illustrative and non-restrictive, and the scope of the present invention is limited by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0030] 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, characterized in that: The invention comprises a ventilation tube, wherein a ventilation cavity and an esophageal drainage cavity are arranged in the ventilation tube, a laryngeal cuff and an esophageal cuff are arranged on the ventilation tube, an air outlet of the ventilation tube is arranged on the tube wall of the ventilation tube section between the esophageal cuff and the laryngeal cuff, the patient end of the ventilation tube is connected with a soft head which is convenient for inserting into the patient's esophagus, the soft head has a drainage hole which is connected with the esophageal drainage cavity, the laryngeal cuff is arranged between the esophageal cuff and the machine end of the ventilation tube, an esophageal drainage channel is arranged on the outer wall of the ventilation tube, and the esophageal drainage channel is connected with the esophageal drainage cavity.

2. The laryngeal ventilator according to claim 1, characterized in that: An opening connected to the esophageal drainage cavity is formed on the outer surface of the tube section between the patient end of the ventilation tube and the air outlet of the ventilation tube. The esophageal drainage channel passes through the laryngeal cuff and connects with the opening to communicate with the esophageal drainage cavity.

3. The laryngeal ventilator according to claim 1, characterized in that: An airway for inflating the laryngeal cuff and the esophageal cuff is formed on the channel wall forming the esophageal drainage channel. The machine end of the airway is connected to one end of an inflation tube, and the other end of the inflation tube is connected to a pressure indicator.

4. The laryngeal ventilator according to claim 1, characterized in that: The outer surface of the vent pipe is provided with a super-slip coating.

5. The laryngeal ventilator according to claim 1, characterized in that: The patient end of the soft head is beveled to form an inclined surface main body structure, and the front end of the inclined surface main body structure forms an arc-shaped head.

6. The laryngeal ventilator according to claim 1, characterized in that: The ventilation tube and the soft head are made of medical polymer materials.

7. The laryngeal ventilator according to claim 1, characterized in that: The ventilation pipe and the soft head are fixed in a butt joint manner, and the hardness of the material of the soft head is lower than that of the material of the ventilation pipe.

8. The laryngeal ventilator according to claim 1, characterized in that: At least one ventilation groove formed by recessing the tube wall toward the inside of the tube is arranged on one side of the patient end of the air outlet of the ventilation tube along the length direction of the ventilation tube.

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