CN110665103A

CN110665103A - High-comfort breathing management tool suitable for patient in supine position

Info

Publication number: CN110665103A
Application number: CN201911069760.7A
Authority: CN
Inventors: 胡大伟; 高宏; 高巨; 苏殿三; 田鸣
Original assignee: Wuxi Sannoa Technology Co Ltd
Current assignee: Wuxi Sannoa Technology Co Ltd
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-01-10
Anticipated expiration: 2039-11-05
Also published as: CN110665103B

Abstract

The invention relates to a high-comfort breathing management tool suitable for a patient in a supine position, which comprises a nasal cavity breather pipe capable of being placed into a nasal cavity, a nasopharyngeal cavity breather pipe capable of entering the nasopharyngeal cavity through another nasal cavity, and breathing connecting pipes capable of being respectively communicated with the nasal cavity breather pipe and the nasopharyngeal cavity breather pipe, wherein the nasal cavity breather pipe and the nasopharyngeal cavity breather pipe can be respectively matched with the placed nasal cavity, and the nasal cavity breather pipe and the nasopharyngeal cavity breather pipe can be hermetically connected with a breathing machine or an anesthesia machine through the breathing connecting pipes to implement required mechanical control ventilation. The nasal cavity drainage device is compact in structure, capable of effectively realizing nasal breathing support, capable of realizing active oral cavity drainage in the nasal breathing support process, capable of improving the tolerance of patients, convenient to use, safe and reliable.

Description

High-comfort breathing management tool suitable for patient in supine position

Technical Field

The invention relates to a respiration support device, in particular to a high-comfort respiration management tool suitable for patients in a supine position, and belongs to the technical field of nasal respiration support.

Background

Generally, for patients requiring respiratory support, the current modes of respiratory support mainly include endotracheal intubation, laryngeal mask intubation, tracheotomy intubation and noninvasive mask respiratory support.

For endotracheal intubation, the following disadvantages are mainly encountered: the operation is difficult, professional medical personnel are required to receive professional training, and the operation can be finished after the operation is qualified. The trachea cannula operation can bring certain damage to the throat of a patient, can cause corresponding complications, even can cause sequelae which can not be cured, and brings more pain to the patient. After trachea cannula accomplished, the sputum of patient lung can't effectively be discharged, needs professional medical staff to use and attracts the supplementary discharge of apparatus, complex operation, and the sputum discharging effect is poor, has not only increased medical staff's work load, has still increased the probability of patient lung infection. In long-term intubation of the trachea, the air sac presses the tracheal mucosa, which can cause ulcer, scar formation and even tracheal stenosis, and cause serious consequences. Sputum is remained on the inner wall of the tracheal catheter when being discharged through the tracheal catheter, and the tracheal catheter is blocked after accumulation, and a trachea is frequently needed to be cut, so that a patient is injured more greatly. The comfort level of the tracheal catheter intubation is poor, and when the tracheal catheter intubation is used by a patient, a large amount of sedative drugs are needed to reduce stress reaction, increase the metabolic burden of the liver and kidney, and increase the economic burden of the patient. For conscious patients, the communication with family members and medical staff cannot be realized by using language in the process of breathing support, so that the condition of the patient can be hidden, and inconvenience is brought to treatment.

For laryngeal mask cannulas, the following disadvantages are mainly present: the laryngeal mask is expensive and brings a large economic burden to the patient. The air bag of the laryngeal mask is large, and after the laryngeal mask is placed into the throat and the nasal cavity, the throat and the nasal cavity are oppressed, so that oral sputum cannot be cleared, and oppression injury can be caused. After the laryngeal mask intubation is completed, sputum of the lung of a patient can not be effectively discharged, professional medical staff needs to use suction instruments to assist in discharging, operation is complex, the sputum discharging effect is poor, the workload of the medical staff is increased, and the probability of lung infection of the patient is increased. Although the comfort level of the laryngeal mask is improved compared with that of the tracheal catheter, the laryngeal mask can still press the throat of a patient to cause nausea and vomiting of the patient, and the laryngeal mask needs to be assisted by sedative drugs, so that the laryngeal mask can tolerate the nausea and vomiting, increases the metabolic burden of the liver and kidney, and also increases the economic burden of the patient. For conscious patients, the communication with family members and medical staff cannot be realized by using language in the process of breathing support, so that the condition of the patient can be hidden, and inconvenience is brought to treatment.

For tracheostomy tubes, the following disadvantages are mainly present: the operation difficulty is high, and the operation can be completed after the otolaryngological medical staff is qualified after receiving long-term professional training. Tracheotomy risks are high and may lead to bleeding, aspiration, hypoxia and even death of the patient. The tracheotomy has more complications, often causes incision infection, scar formation at the incision part, tracheal stenosis after healing and death of patients due to serious complications. For conscious patients, the communication with family members and medical staff cannot be realized by using language in the process of breathing support, so that the condition of the patient can be hidden, and inconvenience is brought to treatment. After the tracheotomy tube is completed, sputum in the lung of a patient can be effectively discharged, but needs to be discharged by professional medical staff in an auxiliary way by using an attraction apparatus, so that the operation is complex, and the workload of the medical staff is increased. The tracheotomy respiratory support patient needs to be assisted with sedative drugs, can tolerate the sedative drugs, increases the metabolic burden of the liver and kidney and also increases the economic burden of the patient.

For noninvasive mask respiratory support, the following disadvantages are mainly included: the breathing support of the noninvasive mask is mainly used for a conscious patient, and when the noninvasive mask is used, the mask needs to be tightly attached to the face by a belt, and the contact part is sealed by double-faced adhesive tape, so that the contact part is damaged by compression and allergic, and great discomfort is brought to the patient. Although the patient can independently discharge the sputum, the noninvasive mask needs to be detached from the face, and the noninvasive mask needs to be fixed on the face again after the sputum is discharged, so that the operation is complex; the same operation is required for eating and speaking, which is inconvenient.

In view of the above disadvantages of respiratory support modalities, there is a clinical need for a respiratory support modality that satisfies the following conditions: the implantation operation is simple and convenient, the operation can be mastered only by simple training, and the popularization is convenient; further improving the comfort level during the respiratory support, reducing or avoiding the use of sedative drugs, reducing the influence of the drugs on the functions of the liver and the kidney and reducing the economic burden of patients. The pressure on the trachea and the throat of the patient is reduced or avoided, so that various complications caused by the pressure can be reduced or avoided.

For conscious patients, the mask does not invade the air passage, keeps the smoothness of the air passage and the oral cavity, can implement mechanical auxiliary ventilation, and is convenient for language communication, food intake and autonomous liquid discharge in the respiratory support process, thereby reducing the workload of medical staff, being convenient for communicating the state of illness, and effectively discharging sputum; does not invade the air passage, reduces the stimulation to the tracheal mucosa and further reduces the production of sputum. For unconscious patients, sputum in the oral cavity can be automatically discharged, and the workload of medical staff is reduced.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a high-comfort respiration management tool suitable for the patient in the supine position, which has a compact structure, is simple and convenient to put in and operate, can be mastered only by simple training and is convenient to popularize; further improving the comfort level during the respiratory support, reducing or avoiding the use of sedative drugs, reducing the influence of the drugs on the functions of the liver and the kidney and reducing the economic burden of patients. The pressure on the trachea and the throat of the patient is reduced or avoided, so that various complications caused by the pressure can be reduced or avoided.

According to the technical scheme provided by the invention, the high-comfort breathing management tool suitable for the patient in the supine position comprises a nasal cavity breathing pipe which can be placed in a nasal cavity, a nasopharyngeal cavity breathing pipe which can enter the nasopharyngeal cavity through another nasal cavity, and breathing connecting pipes which can be respectively communicated with the nasal cavity breathing pipe and the nasopharyngeal cavity breathing pipe, wherein the nasal cavity breathing pipe and the nasopharyngeal cavity breathing pipe can be respectively matched with the placed nasal cavity, and the nasal cavity breathing pipe and the nasopharyngeal cavity breathing pipe can be hermetically connected with a breathing machine or an anesthesia machine through the breathing connecting pipes to implement required mechanical control ventilation.

The outer wall of the nasal vent pipe is provided with a nasal vent pipe sealing body, and the nasal vent pipe can be in sealing contact with the inner wall of the embedded nostril through the nasal vent pipe sealing body; the outer wall of the nasopharyngeal cavity vent pipe is provided with a nasopharyngeal cavity vent pipe sealing body, and the nasopharyngeal cavity vent pipe can be in sealing contact with the placed nostril through the nasopharyngeal cavity vent pipe sealing body;

the nasal cavity breather pipe sealing body comprises a gourd-shaped bulge or a plurality of sealing ring membranes with gradually changed outer diameters, and the nasal cavity breather pipe sealing body comprises a gourd-shaped bulge or a plurality of sealing ring membranes with gradually changed outer diameters.

The tail end of the nasal cavity vent pipe is provided with a nasal cavity vent joint which is communicated with the nasal cavity vent pipe in a sealing way; the tail end of the nasopharyngeal cavity vent pipe is provided with a nasopharyngeal cavity vent joint which is communicated with the nasopharyngeal cavity vent pipe in a sealing way;

the breathing connecting pipe is communicated with the nasal cavity breather pipe through the nasal cavity ventilating joint and can be communicated with the nasal cavity breather pipe through the nasal cavity ventilating joint.

The nasal cavity drainage device also comprises an oral cavity drainage mechanism arranged on the nasal cavity ventilation pipe or the nasopharyngeal cavity ventilation pipe, the oral cavity drainage mechanism comprises an oral cavity drainage pipe, and a pipe orifice at the head end of the oral cavity drainage pipe can be arranged at the bottom of the oropharyngeal cavity through the nasal cavity ventilation pipe or the nasopharyngeal cavity ventilation pipe; when the patient in the supine position is ventilated by mechanical control, the liquid at the bottom of the oropharyngeal cavity can be discharged out of the body through the oral liquid discharge pipe under the action of the positive airway ventilation pressure.

The device also comprises an airflow measurer which can measure the flow of the gas exhausted through the oral liquid discharge pipe and a gas flow rate regulator which can regulate the flow rate of the gas exhausted through the oral liquid discharge pipe.

The oral liquid drainage pipe comprises an oral liquid drainage branch pipe matched with the nasopharynx cavity vent pipe or the nasal cavity vent pipe, the oral liquid drainage branch pipe can penetrate the nasopharynx cavity vent pipe through the nasal pharynx cavity vent joint or penetrate the nasal cavity vent pipe through the nasal cavity vent joint, the tail end of the oral liquid drainage branch pipe can be located at the bottom of the oropharynx cavity, the head end of the oral liquid drainage branch pipe is located outside the nasopharynx cavity vent joint or the nasal cavity vent joint, and the oral liquid drainage branch pipe is hermetically connected with the nasal cavity vent joint and the nasal cavity vent joint.

The main body of the oral liquid discharge pipe is in a parallel state with the nasopharyngeal cavity vent pipe, the oral liquid discharge pipe comprises an oral liquid discharge guide part which is positioned 1cm-4cm in front of the nasopharyngeal cavity vent pipe and an oral liquid discharge pipe body part which is communicated with the oral liquid discharge guide part, and the front section of the oral liquid discharge pipe body part is integrally formed or fixedly connected with the nasopharyngeal cavity vent pipe; the oral cavity liquid drainage guide part is provided with a plurality of liquid drainage guide openings; the nasopharynx cavity breather pipe is isolated from the oral cavity liquid drainage guide part, a nasopharynx cavity breather pipe vent port is arranged on the nasopharynx cavity breather pipe, and the nasopharynx cavity breather pipe vent port is positioned behind the liquid drainage guide port.

The oral cavity liquid drainage pipe is internally and adaptively connected with a one-way valve, and gas exhausted from the oral cavity through the oral cavity liquid drainage pipe and liquid backflow can be blocked through the one-way valve.

The utility model also comprises a lip sealing body which can seal the oral cavity, wherein the lip sealing body comprises a cover body arranged outside the lip or a sheet-shaped sealing rubber block arranged between the lip and the gum.

The liquid storage device is characterized by further comprising a liquid storage device capable of storing liquid discharged through the oral liquid discharge pipe, the tail end of the oral liquid discharge pipe can extend into the liquid storage device, a storage exhaust pipe is further arranged on the liquid storage device, a water-blocking and gas-permeable film is arranged at the joint of the storage exhaust pipe and the liquid storage device, and the air flow measurer and the gas flow rate regulator are in adaptive connection with the storage exhaust pipe.

The invention has the advantages that: the nasal cavity breather pipe can be arranged in one nasal cavity, the nasopharynx cavity breather pipe can enter the nasopharynx cavity through the other nasal cavity, and after the nasal cavity breather pipe is connected with a breathing machine and an anesthesia machine through the breathing support connecting pipe, gas can be sent into the respiratory tract in the body through the nasal cavity breather pipe and the nasopharynx cavity breather pipe; the implantation operation is simple and convenient, the operation can be mastered only by simple training, and the popularization is convenient; further improving the comfort level during the respiratory support, reducing or avoiding the use of sedative drugs, reducing the influence of the drugs on the functions of the liver and the kidney and reducing the economic burden of patients. The pressure on the trachea and the throat of the patient is reduced or avoided, so that various complications caused by the pressure can be reduced or avoided.

For conscious patients, as the nasal cavity vent pipe and the nasopharynx cavity vent pipe do not invade the air passage, the smoothness of the air passage and the oral cavity can be kept, mechanical auxiliary ventilation can be implemented, and language communication, food intake and autonomous liquid drainage in the breathing support process can be facilitated, so that the workload of medical staff is reduced, the communication of illness states is facilitated, and sputum can be effectively discharged through the oral cavity liquid drainage pipe; does not invade the air passage, reduces the stimulation to the tracheal mucosa and further reduces the production of sputum. For unconscious patients, sputum in the oral cavity can be automatically discharged through the oral cavity liquid discharge pipe under the action of positive pressure gas in the process of breathing support, so that the workload of medical staff is reduced.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of a second embodiment of the present invention.

Fig. 3 is a schematic view of the ventilation and respiration connector of the present invention.

Fig. 4 is a schematic view of a nasal vent of the present invention.

Fig. 5 is a schematic view of an embodiment of the nasopharyngeal airway of the present invention.

FIG. 6 is a schematic diagram of a third embodiment of the present invention.

Fig. 7 is a schematic view of the oral drainage tube of the present invention in cooperation with a fluid receptacle.

Fig. 8 is a perspective view of the air flow measuring instrument of the present invention.

Fig. 9 is a sectional view of the air flow measuring instrument of the present invention.

Description of reference numerals: 1-breathing connecting pipe, 2-breathing connecting joint, 3-nasal cavity ventilating joint, 4-nasal cavity ventilating joint sealing cap, 5-nasal cavity ventilating pipe, 6-nasal cavity ventilating pipe sealing body, 7-nasopharyngeal cavity ventilating joint, 8-nasopharyngeal cavity ventilating pipe sealing body, 9-nasopharyngeal cavity ventilating joint sealing cap, 10-nasopharyngeal cavity ventilating pipe, 11-ventilating pipe hole, 12-oral cavity drainage branch pipe, 13-branch pipe air bag, 14-air bag inflation and deflation connecting pipe, 15-air bag sealing valve, 16-air clamp, 17-branch pipe joint, 18-joint transverse pipe, 19-joint vertical pipe, 20-nasal cavity ventilating joint connecting pipe, 21-nasal cavity ventilating check valve, 22-nasopharyngeal cavity ventilating joint connecting pipe, 23-nasopharyngeal cavity ventilating check valve, 24-vent pipe part, 25-vent release side hole, 26-vent release port, 27-oral cavity liquid drainage guide part, 28-liquid drainage guide port, 29-guide side hole, 30-oral cavity liquid drainage pipe body part, 31-air flow regulating valve, 32-liquid container, 33-oral cavity liquid drainage pipe, 34-water-blocking and breathable film, 35-storage exhaust pipe, 36-air flow measurer, 37-gas flow rate regulator, 38-air flow measuring inlet pipe, 39-air flow measuring outlet pipe, 40-air flow measuring shell, 41-air flow measuring upper sealing cap, 42-air flow regulating cap, 43-shell inner cavity, 44-measuring floating ball, 45-air flow measuring bottom cavity, 46-air flow measuring inlet pipe joint, 47-air flow measuring outlet pipe joint, 48-airflow adjusting cap rod, 49-airflow adjusting rod head, and 50-cavity step and 51-adjuster connecting tube.

Detailed Description

The invention is further illustrated by the following specific figures and examples.

As shown in fig. 1: in order to effectively realize the nasal breathing support and improve the tolerance of patients, the nasal breathing support device is convenient to use, and comprises a nasal cavity breathing pipe 5 which can be placed in a nasal cavity, a nasopharyngeal cavity breathing pipe 10 which can enter the nasopharyngeal cavity through another nasal cavity, and breathing connecting pipes 1 which can be respectively communicated with the nasal cavity breathing pipe 5 and the nasopharyngeal cavity breathing pipe 10, wherein the nasal cavity breathing pipe 5 and the nasopharyngeal cavity breathing pipe 10 can be respectively matched with the placed nasal cavity, and the nasal cavity breathing pipe 5 and the nasopharyngeal cavity breathing pipe 10 can be hermetically connected with a breathing machine or an anesthesia machine through the breathing connecting pipes 1 to implement the required mechanical control ventilation.

Specifically, the nasal cavity ventilation tube 5, the nasopharyngeal cavity ventilation tube 10, and the breathing connection tube 1 are all made of materials meeting medical standards, such as medical plastics, and the specific types can be selected and determined according to actual needs, which are well known to those skilled in the art and will not be described herein again. Through nasal cavity breather pipe 5, nasopharyngeal cavity breather pipe 10 can cooperate with two nasal cavity one-to-one of patient respectively, nasal cavity breather pipe 5 can be put into a nasal cavity promptly, nasopharyngeal cavity breather pipe 10 can get into the nasopharyngeal cavity through another nasal cavity, thereby through nasal cavity breather pipe 5, nasopharyngeal cavity breather pipe 10 cooperates with the nasal cavity of two nasal parts respectively, breathing connecting pipe 1 can communicate with nasal cavity breather pipe 5 and nasopharyngeal cavity breather pipe 10 simultaneously, when through breathing connecting pipe 1 and breathing machine, when anesthesia machine or other can implement the equipment that mechanical control ventilated is connected, the breathing machine, the anesthesia machine is through breathing support connecting pipe 1 and nasal cavity breather pipe 5, required intranasal breathing support can be realized to nasopharyngeal cavity breather pipe 10. The procedure of the ventilator and the anesthesia machine for implementing the mechanical control ventilation and the way of implementing the mechanical control ventilation are the same as the prior art, and are not described herein again.

In the embodiment of the invention, the nasal cavity vent pipe 5 is generally shorter than the length of the nasal cavity, namely the nasal cavity vent pipe 5 is only arranged in the nasal cavity, the nasopharyngeal cavity vent pipe 10 enters the nasopharyngeal cavity through the nasal cavity, the nasal cavity vent pipe 5 and the nasopharyngeal cavity vent pipe 10 are matched with the breathing connecting pipe 1 to simultaneously realize breathing support, when the nasal cavity vent pipe 5 and the nasopharyngeal cavity vent pipe 10 are matched with the breathing support, the resistance in the nasal breathing support can be reduced, and the nasal cavity vent pipe 5 and the nasopharyngeal cavity vent pipe 10 adopt the nasal breathing support and adopt non-invasive breathing support, so that the tolerance of patients is improved, and the use is convenient.

In addition, nasal cavity breather pipe 5 can the disect insertion in a nasal cavity, nasopharyngeal cavity breather pipe 10 get into the nasopharyngeal cavity through another nasal cavity can, the whole is put into easy and simple to handle, only need simple training to master, facilitate promotion, nasal cavity breather pipe 5, nasopharyngeal cavity breather pipe 10 can not produce contact pressure with trachea and throat position, reduce or avoid the oppression to patient's trachea and throat position, thereby can reduce or avoid the various complications that lead to from this, the comfort level when further improving the respiratory support, reduce or avoid the use of sedative, reduce the influence of medicine to liver and kidney function, reduce patient's economic burden.

During specific implementation, nasal cavity breather pipe 5, nasopharyngeal cavity breather pipe 10 can be with the nasal cavity adaptation at place, specifically indicate that the corresponding pipe diameter of nasal cavity breather pipe 5, nasopharyngeal cavity breather pipe 10 is close with the size of the nasal cavity at place to at nasal cavity breather pipe 5, nasopharyngeal cavity breather pipe 10 can with the nasal cavity sealing contact who corresponds, ensure the validity and the reliability of intranasal respiratory support.

The connection form of the breathing connecting pipe 1, a breathing machine and an anesthesia machine is consistent with the prior art, in particular consistent with the personnel in the technical field; in the process of respiratory support, the exhaled gas can be discharged out of the body through the nasal cavity vent pipe 5, the nasopharyngeal cavity vent pipe 10 and the respiratory support connecting pipe 1, the exhaled gas discharged from the respiratory support connecting pipe 1 can enter the respirator and the anesthesia machine, and enters the respiratory support circulation again after being processed, for example, the gas at the gas outlet of the respirator can enter the nasal cavity vent pipe 5 and the nasopharyngeal cavity vent pipe 10 through the respiratory connecting pipe 1 to realize respiratory support, the exhaled gas enters the gas inlet of the respirator through the nasal cavity vent pipe 10, the nasal cavity vent pipe 5 and the respiratory connecting pipe 1, and after removing the carbon dioxide in the exhaled gas in the respirator, the gas enters the respiratory connecting pipe 1, the nasal cavity vent pipe 5 and the nasopharyngeal cavity vent pipe 10 through the gas outlet of the respirator again, and the process of realizing the respiratory support circulation by matching with the respirator is well known by the person skilled in the art, and will not be described in detail herein. When the anesthesia machine is used, the process of the respiration support circulation realized by the cooperation of the respiration connecting pipe 1, the nasal cavity ventilation pipe 5, the nasopharyngeal cavity ventilation pipe 10 and the anesthesia machine is consistent with that of the respirator, and the details are not repeated here.

Furthermore, a nasal airway sealing body 6 is arranged on the outer wall of the nasal airway 5, and the nasal airway 5 can be in sealing contact with the inner wall of the placed nostril through the nasal airway sealing body 6; the outer wall of the nasopharyngeal cavity vent pipe 10 is provided with a nasopharyngeal cavity vent pipe sealing body 8, and the nasopharyngeal cavity vent pipe 10 can be in sealing contact with the placed nostril through the nasopharyngeal cavity vent pipe sealing body 8;

nasal cavity breather pipe seal 6 is including the protruding or a plurality of external diameter gradual change's that is calabash form sealing ring membrane, nasopharyngeal cavity breather pipe seal 8 is including the protruding or a plurality of external diameter gradual change's that is calabash form sealing ring membrane.

In order to improve the reliability in the process of respiratory support, the nasal cavity breather pipe 5 can be in sealing contact with the nasal cavity where the nasal cavity breather pipe is located through the nasal cavity breather pipe sealing body 6, and the nasal cavity breather pipe 10 can be in sealing contact with the nostril where the nasal cavity breather pipe is located through the nasal cavity breather pipe sealing body 8, so that the gas is prevented from escaping through the nostril in the respiratory support, and the reliability of the respiratory support is improved.

In the embodiment of the present invention, the length of the nasal airway 5 is less than that of the nasopharyngeal airway 10, that is, the nasal airway 5 generally only needs to be placed in the nostril, and the nasopharyngeal airway 10 enters the nasopharyngeal cavity after passing through the nasal cavity, and generally, the end of the nasopharyngeal airway 10 can be adjacent to the joint of the airway and the esophagus. The nasal cavity breather pipe seal body 6 can be a plurality of projections or a plurality of sealing ring membrane that are calabash form, and the external diameter between a plurality of sealing ring membranes is the gradual change, generally, in the nostril back, the external diameter of sealing ring membrane is grow gradually from inside to outside direction, utilizes the external diameter that sealing ring membrane gradually changes to reach the purpose of sealing between nasal cavity breather pipe 5 and the nostril when can realizing contacting with the nostril inner wall. Fig. 1 and 2 show that the nasal airway sealing body 6 is gourd-shaped, and fig. 6 shows that the nasal airway sealing body 6 is a multi-sealing ring membrane, but of course, the nasal airway sealing body 6 may be in other sealing forms, such as annular air bag sealing, and the form may be selected as required, and is not described herein again.

When concrete implementation, nasopharyngeal cavity breather pipe sealing body 8 can adopt the structural style the same with nasal cavity breather pipe sealing body 6, and the explanation of nasal cavity breather pipe sealing body 6 can be referred to the concrete condition of nasopharyngeal cavity breather pipe sealing body 8, and no longer repeated here. The nasopharyngeal cavity breather pipe sealing body 8 is generally positioned at the end part of the nasopharyngeal cavity breather pipe 10, namely after the nasopharyngeal cavity breather pipe 10 is inserted into the nasopharyngeal cavity through the nasal cavity, the nasopharyngeal cavity breather pipe sealing body 8 can be utilized to realize the sealing with the nasal cavity.

Further, a nasal cavity ventilation joint 3 is arranged at the tail end of the nasal cavity ventilation pipe 5, and the nasal cavity ventilation joint 3 is communicated with the nasal cavity ventilation pipe 5 in a sealing mode; the tail end of the nasopharyngeal cavity vent pipe 10 is provided with a nasopharyngeal cavity vent joint 7, and the nasopharyngeal cavity vent joint 7 is communicated with the nasopharyngeal cavity vent pipe 10 in a sealing way;

the breathing connecting pipe 1 is communicated with the nasal cavity breather pipe 5 through a nasal cavity ventilating joint 3, and the breathing connecting pipe 1 can be communicated with the nasopharyngeal cavity breather pipe 10 through a nasopharyngeal cavity ventilating joint 7.

In the embodiment of the invention, the nasal cavity ventilation joint 3 is directly connected with one end of the nasal cavity ventilation pipe 5, the nasopharyngeal cavity ventilation joint 7 is directly connected with one end of the nasopharyngeal cavity ventilation pipe 10, and the nasopharyngeal cavity ventilation pipe sealing body 8 is arranged on the nasopharyngeal cavity ventilation pipe 10 and is adjacent to the nasopharyngeal cavity ventilation joint 7. The breathing connecting pipe 1 is positioned between the nasal cavity ventilation joint 3 and the nasopharyngeal cavity ventilation joint 7, and in specific implementation, the breathing connecting pipe 1 is connected with the nasal cavity ventilation joint 3 and the nasopharyngeal cavity ventilation joint 7 through the ventilation breathing connector 2. Generally, the pipe diameter of the nasal cavity ventilation joint 3 is larger than that of the nasal cavity ventilation pipe 5, and the pipe diameter of the nasopharyngeal cavity ventilation joint 7 is larger than that of the nasopharyngeal cavity ventilation pipe 10.

As shown in fig. 4, the nasal cavity ventilation joint 3 is in a three-way shape, a nasal cavity ventilation joint connecting pipe 20 is arranged at one side of the nasal cavity ventilation joint 3, and the nasal cavity ventilation joint connecting pipe 20 is communicated with the nasal cavity ventilation joint 3, namely communicated with the nasal cavity ventilation pipe 5. Still set up nasal cavity check valve 21 and can seal the nasal cavity of nasal cavity joint 3 of ventilating and connect sealing cap 4 in the one end of nasal cavity joint 3 of ventilating, along the directional nasal cavity breather pipe 5 direction of nasal cavity check valve 21 of ventilating, with the nasal cavity joint sealing cap 4 of ventilating and remove the back from nasal cavity joint 3 of ventilating, the check valve 21 of nasal cavity ventilating allows the apparatus to wear to put, thereby it can carry out required medical operation to connect 3 and nasal cavity breather pipe 5 through the nasal cavity ventilating, can realize wearing the sealed of putting the operation in-process to the apparatus through check valve 21 of nasal cavity ventilating, thereby can not influence normal respiratory support, the apparatus can be for bronchofiberscope etc. specifically can select as required. When the instrument is not needed to be worn, the sealing cap 4 of the nasal cavity ventilation joint can be covered on the nasal cavity ventilation joint 3, and the convenience of medical operation is improved.

As shown in fig. 5, a nasopharyngeal cavity ventilation joint connecting pipe 22 is arranged on one side of the nasopharyngeal cavity ventilation joint 7, the nasopharyngeal cavity ventilation joint connecting pipe 22 is communicated with the nasopharyngeal cavity ventilation pipe 10 through the nasopharyngeal cavity ventilation joint 7, a nasopharyngeal cavity ventilation check valve 23 and a nasopharyngeal cavity ventilation joint sealing cap 9 can be further arranged on the other end of the nasopharyngeal cavity ventilation joint 7 connected with the nasopharyngeal cavity ventilation pipe 10, and the specific functions and the matching relationship of the nasopharyngeal cavity ventilation check valve 23 and the nasopharyngeal cavity ventilation joint sealing cap 9 can refer to the description among the nasal cavity ventilation check valve 21, the nasal cavity ventilation joint sealing cap 4 and the nasal cavity ventilation joint 3, which is not repeated herein.

As shown in fig. 3, for the structure sketch of the connector 2 of breathing of ventilating, the connector 2 of breathing of ventilating including the joint violently manage 18 and with the joint standpipe 19 that the joint violently managed 18 intercommunication, the joint standpipe 19 violently manages 18 with the joint and is the T type, violently manages 18 through the joint and can with nasal cavity ventilation joint connecting pipe 20 and nasopharyngeal cavity ventilation joint connecting pipe 22 adaptation connection, can with breathe 1 adaptation connection of connecting pipe through joint standpipe 19 to breathe the connecting pipe 1 and can realize through the connector 2 of breathing of ventilating and connect 7, the nasal cavity is ventilated and is connected and communicate between the connector 3.

Certainly, when specifically implementing, breathe connecting pipe 1 and breathe connector 2 with ventilating and can adopt structural style such as integrated into one piece, breathe the connection cooperation form between connecting pipe 1 and the breathing connector 2 of ventilating and can select according to actual need, no longer describe here. In addition, the breathing connecting pipe 1, the breathing connector 2, the nasal cavity ventilation connector 3 and the nasopharyngeal cavity ventilation connector 7 can also adopt an integrated structure form, the specific matching relation can be selected according to actual needs, and the detailed description is omitted here

Further, the nasal cavity drainage device also comprises an oral cavity drainage mechanism arranged on the nasal cavity ventilation tube 5 or the nasopharyngeal cavity ventilation tube 10, the oral cavity drainage mechanism comprises an oral cavity drainage tube 33, and a tube orifice at the head end of the oral cavity drainage tube 33 can be placed at the bottom of the oropharyngeal cavity through the nasal cavity ventilation tube 5 or the nasopharyngeal cavity ventilation tube 10; when the patient in the supine position is subjected to mechanical control ventilation, under the action of positive airway ventilation pressure, the liquid at the bottom of the oropharyngeal cavity can be discharged out of the body through the oral liquid discharge pipe 33.

In the embodiment of the present invention, the oral drainage mechanism includes an oral drainage tube 33, one end of the oral drainage tube 33 can be located at the bottom of the oropharyngeal cavity via the nasal cavity ventilation tube 5 or the nasopharyngeal cavity ventilation tube 10, and at this time, the other end of the oral drainage tube 33 is located outside the body. In the process of respiratory support, the gas in the nasal cavity breather pipe 5 and the nasal cavity breather pipe 10 can converge in the oropharyngeal cavity, so that positive pressure can be formed in the oropharyngeal cavity, at the moment, the liquid in the oral cavity can be pressed into the oral liquid discharge pipe 33, and then the liquid is discharged out of the body through the oral liquid discharge pipe 33 under the pressure, thereby realizing automatic sputum discharge in the process of mechanical control respiration. Of course, in specific use, most of the gas collected in the oropharyngeal and laryngeal cavities can enter the respiratory tract to achieve the purpose of respiratory support, and the other small part of the gas can be discharged through the oral liquid discharge pipe 33. In the present embodiment, the fluid discharged through the oral drainage tube 33 is mainly sputum.

When the structure shown in fig. 1 is adopted, the liquid in the body can be directly and actively spit out by the breathing support patient, and the structure is consistent with the existing nasal breathing support. I.e. the form of construction shown in fig. 1, is typically used on conscious patients and said patients also have a protective reflex.

Further, a gas flow meter 36 capable of measuring the flow rate of the gas discharged through the oral liquid discharge pipe 33 and a gas flow rate regulator 37 capable of regulating the flow rate of the gas discharged through the oral liquid discharge pipe 33 are provided.

In the embodiment of the present invention, one end of the oral drainage tube 33 is placed outside the body, the flow rate, flow velocity, etc. of the gas discharged from the oral drainage tube 33 can be adjusted by the gas flow rate adjuster 37, the flow rate of the gas discharged from the oral drainage tube 33 can be measured by the flow rate measurer 36, and the adjustment of the flow rate of the discharged liquid can be achieved even after the flow rate of the discharged gas is adjusted by the gas flow rate adjuster 37. The gas flow rate regulator 37 and the flow measuring device 36 can be connected with a breathing machine and an anesthesia machine, so that the breathing machine and the anesthesia machine can regulate the gas state sent into the body according to the corresponding measured values of the gas flow rate regulator 37 and the flow measuring device 36, and the stability and the reliability of the nasal breathing support are ensured.

Furthermore, a check valve is connected in the oral liquid discharge pipe 33 in a matching manner, and the gas discharged from the oral liquid discharge pipe 33 and the liquid can be prevented from flowing back through the check valve.

In the embodiment of the invention, the oral liquid discharge one-way valve is generally positioned in the end part of the oral liquid discharge pipe 33 positioned outside the body, and the one-way flow of gas and liquid can be realized through the oral liquid discharge one-way valve, so that the infection caused by the backflow of the gas and the liquid is avoided. In specific implementation, the oral drainage check valve, the nasal cavity ventilation check valve 21 and the nasopharyngeal cavity ventilation check valve 23 can all adopt the common structural forms in the technical field, as long as the purpose of realizing the unidirectional gas-liquid flow can be achieved, and are specifically known to those skilled in the art, and are not described herein again.

When the mouth and lip sealing body is specifically implemented, the mouth and lip sealing body can seal the mouth, and comprises a cover body arranged outside the mouth and lip or a sheet-shaped sealing rubber block arranged between the lip and the gum. In the embodiment of the invention, the mask body can be used for sealing the oral cavity, the mask body can adopt the conventional common structural form, and when the sheet-shaped sealing rubber block is arranged between the lips and the gum, the sealing effect on the oral cavity can be realized, so that the phenomenon that the gas escapes through the oral cavity in the respiratory support process to influence the respiratory support effect is avoided. Of course, the lip sealing body may also adopt other structural forms, which may be specifically selected according to the needs and will not be described herein again. The oral lip sealing body can be connected with the nasal cavity ventilation joint 3, the nasopharyngeal cavity ventilation joint 7, the breathing connecting pipe 1 or the ventilation and breathing connecting head 2 and the like through a wire body, so that the convenience of using the oral lip sealing body is improved, and the sealing body can be prevented from being lost before or after being used.

As shown in fig. 7, the liquid container further includes a liquid container 32 capable of containing the liquid discharged through the oral liquid discharge pipe 33, the tail end of the oral liquid discharge pipe 33 is capable of being inserted into the liquid container 32, a containing exhaust pipe 35 is further provided in the liquid container 32, a water-blocking and gas-permeable membrane 34 is provided at a joint portion between the containing exhaust pipe 35 and the liquid container 32, and the gas flow measuring device 36 and the gas flow rate regulator 37 are connected to the containing exhaust pipe 35 in an adaptive manner.

In the embodiment of the present invention, the liquid container 32 can contain the liquid discharged from the oral liquid discharge pipe 33, the liquid container 32 may be in a bottle shape, a can shape or other shapes, the liquid container 32 is in a relatively sealed state, the tail end of the oral liquid discharge pipe 33 can extend into the liquid container 32 from the top of the liquid container 32, the top of the liquid container 32 is provided with the storage exhaust pipe 35, and the joint part of the storage exhaust pipe 35 and the liquid container 32 is provided with the water blocking and air permeable film 34. During the respiratory support, liquid and gas enter the liquid container 32 through the oral liquid discharge pipe 33, and the liquid falls on the bottom of the liquid container 32 because the density of the liquid is higher than that of the gas, so that the liquid container 32 collects the liquid, but the gas enters the liquid container 32 and then escapes from the liquid container 32 through the storage gas discharge pipe 35.

In specific use, can block liquid through the ventilated membrane 34 that blocks water and follow gas and discharge through accomodating blast pipe 35, thereby can realize liquid and gaseous direct separation through the ventilated membrane 34 that blocks water, also can avoid liquid to accomodate the condition that overflows in the ware 32 is accomodate to follow liquid after 32 reaches a take the altitude, the ventilated membrane 34 that blocks water can adopt current commonly used form, the principle that utilizes the ventilated membrane 34 that blocks water to realize that liquid blocks and gas sees through is known for this technical field personnel, and no longer the repeated description here.

In fig. 7, the exhaust pipe 35 is connected to the gas flow measuring device 36, and the gas flow measuring device 36 is connected to the gas flow rate regulator 37, of course, the gas flow measuring device 36 and the gas flow rate regulator 37 may also be disposed on the oral liquid discharge pipe 33, and the specific positions of the gas flow measuring device 36 and the gas flow rate regulator 37 may be selected as needed, as long as the gas flow measurement of the gas discharged from the oral liquid discharge pipe 33 can be effectively achieved, and the adjustment of the flow rate of the gas discharged from the oral liquid discharge pipe 33 can be performed, which is not described herein again.

In specific implementation, the gas exhausted from the storage exhaust pipe 35 may be directly exhausted into the atmosphere, or the gas exhausted from the storage exhaust pipe 35 may be collected, or the gas exhausted from the storage exhaust pipe 35 may be connected to the gas inlets of a ventilator or an anesthesia machine, and of course, the collected gas may be sterilized and then exhausted, or may be used for other purposes; the gas entering the breathing machine and the anesthesia machine also needs to be sterilized and disinfected, and the carbon dioxide in the gas is absorbed to meet the gas requirement of the respiratory support again, so that the cross infection in the respiratory support process is avoided.

As shown in fig. 8 and 9, the airflow measuring device 36 of the present invention is configured in a manner that the airflow measuring device 36 includes an airflow measuring housing 40 and a housing inner cavity 43 disposed inside the airflow measuring housing 40, wherein the airflow measuring housing 40 may be cylindrical, and the housing inner cavity 43 is inverted-cone-shaped, that is, the inner diameter of the housing inner cavity 43 gradually increases along the direction from the bottom end to the top end of the airflow measuring housing 40. The measuring floating ball 44 is arranged in the shell inner cavity 43 and matched with the shell inner cavity 43, the measuring floating ball 44 can be made of plastics and the like, the airflow measuring shell 40 is generally made of transparent materials, an airflow scale is printed on the outer wall of the airflow measuring shell 40, and when the measuring floating ball 44 rises and falls in the airflow measuring shell 40 and corresponds to the airflow scale, the current airflow can be directly read.

Specifically, an airflow measuring inlet pipe 38 is provided at the lower end portion of the airflow measuring housing 40, an airflow measuring outlet pipe 39 is provided at the upper end portion of the airflow measuring housing 40, the airflow measuring outlet pipe 39 can communicate with the airflow measuring inlet pipe 38 through the airflow measuring housing 40, generally, the airflow measuring inlet pipe 38 and the airflow measuring outlet pipe 39 are parallel to each other, and the length direction of the airflow measuring inlet pipe 38 is perpendicular to the length direction of the airflow measuring housing 40. The bottom in the airflow measurement shell 40 is provided with an airflow measurement bottom cavity 45, the airflow measurement air inlet pipe 38 corresponds to the airflow measurement bottom cavity 45, a cavity step 50 is arranged at the joint of the airflow measurement bottom cavity 45 and the shell inner cavity 43, the cavity step 50 is matched with the measurement floating ball 44, the measurement floating ball 44 can be prevented from falling into the airflow measurement bottom cavity 45 when no gas passes through the cavity step 50, and the stability and reliability of the measurement floating ball 44 in the measurement process are ensured.

An upper airflow measuring sealing cap 41 is arranged at the top end of the airflow measuring shell 40, the upper airflow measuring sealing cap 41 is in threaded connection with the inner wall of the top end of the airflow measuring shell 40, when the upper airflow measuring sealing cap 41 is screwed into the airflow measuring shell 40, the top end of the airflow measuring shell 40 can be sealed, and when the upper airflow measuring sealing cap 41 is separated from the airflow measuring shell 40, the measuring floating ball 44 can be placed in the shell inner cavity 43. In addition, the airflow measuring air inlet pipe 38, the airflow measuring air pipe 39 and the airflow measuring housing 40 are also connected by screw threads. An air flow measuring air inlet pipe joint 46 is arranged at the end part of the air flow measuring air inlet pipe 38, an air flow measuring air outlet pipe joint 47 is arranged at the end part of the air flow measuring air pipe 39, the accommodating exhaust pipe 35 can be effectively connected with the air flow measuring air inlet pipe 38 through the air flow measuring air inlet pipe joint 46, and the air flow rate regulator 37 can be in adaptive connection with the air flow measuring air pipe 39 through a regulator connecting pipe 51 and the air flow measuring air outlet pipe joint 47. The gas flow rate regulator 37 may be a conventional gas regulating switch, and the magnitude of the gas flow rate can be regulated by the gas flow rate regulator 37.

Further, an air flow adjusting cap rod 48 is further arranged in the air flow measuring shell 40, the air flow adjusting cap rod 48 and the air flow measuring air inlet pipe 38 are coaxially distributed, one end of the air flow adjusting cap rod 48 penetrates out of the outer wall of the air flow measuring shell 40, an air flow adjusting cap 42 is arranged at the end part, located outside the air flow measuring shell 40, of the air flow adjusting cap rod 48, an air flow adjusting rod head 49 is arranged at the end part, located inside the air flow measuring shell 40, of the air flow adjusting cap rod 48, the air flow adjusting rod head 49 is conical, the air flow adjusting rod head 49 can extend into the air flow measuring air inlet pipe 38, the air flow adjusting cap rod 48 and the air flow measuring shell 40 are in threaded connection, when the air flow adjusting cap rod 48 rotates relative to the air flow measuring shell 40 through the air flow adjusting cap 42, the position state that the air flow adjusting rod head 49 enters the air flow measuring air inlet pipe 38 can be adjusted, and, the gas flow in the gas flow measurement inlet pipe 38 can be adjusted, i.e. the purpose of gas flow adjustment can be achieved. In specific implementation, when the gas flow adjusting cap rod 48 is disposed in the gas flow measuring casing 40, the gas flow rate adjuster 37 may be omitted, and certainly, the gas flow rate adjuster 37 may be used to perform secondary accurate adjustment, which may be specifically selected according to actual situations, and will not be described herein again.

In specific implementation, the gas flow rate regulator 37 may further adopt a gas clamp 16, a gas flow regulating valve 31 and a structural form that gas can realize gas flow regulation, the gas flow regulating valve 31 may be an electromagnetic valve or a valve for manually regulating flow, when the gas flow regulating valve 31 adopts an electromagnetic valve, reference may be specifically made to a micro medical electromagnetic valve disclosed in the publication No. CN207935451U, the valve for manually regulating flow may be in a form similar to a faucet, and the specific structural form of the gas flow regulating valve 31 may be selected as required, which is specifically known to those skilled in the art. The flow meter 36 may also adopt an existing commonly used gas flow sensor or gas flowmeter, which may be a mechanical flowmeter or an electronic flowmeter, such as a medical oxygen flowmeter of thomson automation technology ltd, shenzhen, and may be specifically selected as needed.

Further, the oral cavity liquid drainage pipe 33 comprises an oral cavity liquid drainage branch pipe 12 matched with the nasopharyngeal cavity vent pipe 10 or the nasal cavity vent pipe 5, the oral cavity liquid drainage branch pipe 12 can penetrate the nasopharyngeal cavity vent pipe 10 or the nasal cavity vent pipe 3 through the nasal cavity vent joint 7 and penetrate the nasal cavity vent pipe 5, the tail end of the oral cavity liquid drainage branch pipe 12 can be located at the bottom of the oropharyngeal cavity, the head end of the oral cavity liquid drainage branch pipe 12 is located outside the nasopharyngeal cavity vent joint 7 or the nasal cavity vent joint 3, and the oral cavity liquid drainage branch pipe 12 is connected with the nasal cavity vent joint 3 and the nasopharyngeal cavity vent joint 7 in a sealing mode.

In the embodiment of the present invention, the oral cavity drainage tube 33 comprises an oral cavity drainage branch tube 12, and the oral cavity drainage branch tube 12 can be adapted to the nasal cavity ventilation tube 5 and the nasopharyngeal cavity ventilation tube 10, that is, the oral cavity drainage branch tube 12 can pass through the nasal cavity ventilation tube 5 or the nasopharyngeal cavity ventilation tube 10, so that one end of the oral cavity drainage branch tube 12 can be placed at the bottom of the oropharyngeal cavity. As can be seen from the above description, one end of the oral cavity drainage branch pipe 12 needs to pass through the nasal cavity ventilation joint 3 and the nasal cavity ventilation pipe 5 and then be located at the bottom of the oropharyngeal cavity, the other end of the oral cavity drainage branch pipe 12 is located outside the nasal cavity ventilation joint 3, and the oral cavity drainage branch pipe 12 is hermetically connected with the nasal cavity ventilation joint 3; or one end of the oral cavity liquid drainage branch pipe 12 needs to pass through the nasopharyngeal cavity air vent joint 7 and the nasopharyngeal cavity air vent pipe 10 and then is positioned at the bottom of the oropharyngeal cavity, the other end of the oral cavity liquid drainage branch pipe 12 is positioned outside the nasopharyngeal cavity air vent joint 7, and the oral cavity liquid drainage branch pipe 12 is connected with the nasopharyngeal cavity air vent joint 7 in a sealing way.

As shown in fig. 2, it is a schematic diagram of the oral cavity drainage branch pipe 12 matching with the nasopharyngeal cavity ventilation pipe 10 and the nasopharyngeal cavity ventilation joint 7, that is, one end of the oral cavity drainage branch pipe 12 can be placed at the bottom of the oropharyngeal cavity after passing through the nasopharyngeal cavity ventilation joint 7 and the nasopharyngeal cavity ventilation pipe 10.

In the embodiment of the invention, the length of the oral cavity liquid drainage branch pipe 12 is generally larger than the length of the nasopharyngeal cavity vent pipe 10, the pipe diameter of the oral cavity liquid drainage branch pipe 12 is smaller than the pipe diameter of the nasopharyngeal cavity vent pipe 10, so that the oral cavity liquid drainage branch pipe 12 can be embedded in the nasopharyngeal cavity vent pipe 10, the oral cavity liquid drainage branch pipe 12 can penetrate out from two ends of the nasopharyngeal cavity vent pipe 12, when the oral cavity liquid drainage branch pipe 12 penetrates out from the nasopharyngeal cavity vent joint 7, the sealing performance between the oral cavity liquid drainage branch pipe 12 and the nasopharyngeal cavity vent joint 7 can be realized by utilizing the nasopharyngeal cavity vent one-way valve 23, namely, gas cannot escape through a joint part between the oral cavity liquid drainage branch pipe 12 and the. Set up the breather pipe hole 11 on nasopharyngeal cavity breather pipe 10, breather pipe hole 11 link up nasopharyngeal cavity breather pipe 10, and the gas in the nasopharyngeal cavity breather pipe 10 is sent into by breathing connecting pipe 1, can release to internal through the tip of breather pipe hole 11 and nasopharyngeal cavity breather pipe 10 to breathe in getting into the respiratory track and support. Part of the gas which does not enter the respiratory tract can be discharged out of the body through the oral liquid discharge branch pipe 12, and in the process of discharging out of the body, the liquid in the oropharynx and the larynx cavity can be discharged out of the body through the oral liquid discharge branch pipe 12.

Further, a branch tube air bag 13 for sealing the esophagus is arranged on the oral cavity drainage branch tube 12, the branch tube air bag 13 is connected with an air bag inflation and deflation connecting tube 14, an air bag sealing valve 15 is arranged on the air bag inflation and deflation connecting tube 14, the branch tube air bag 13 can be placed in the esophagus through the oral cavity drainage branch tube 12, and the esophagus can be sealed after the branch tube air bag 13 is inflated through the air bag inflation and deflation connecting tube 14 and the air bag sealing valve 15;

the oral cavity drainage branch pipe 12 is detachably connected with the nasal cavity ventilation joint 3 and the nasopharyngeal cavity ventilation joint 7.

In the embodiment of the present invention, the branch airbag 13 may adopt a common structural form, the control of inflation and deflation of the branch airbag 13 can be realized through the airbag inflation and deflation connecting tube 14 and the airbag sealing valve 15, and the process of inflation and deflation control of the branch airbag 13 through the airbag sealing valve 15 and the airbag inflation and deflation connecting tube 14 is the same as that in the prior art, which is well known to those skilled in the art.

When the oral cavity drainage branch tube 12 is used specifically, the oral cavity drainage branch tube 12 needs to be placed into an esophagus, then the branch tube air bag 13 is inflated through the air bag inflation connecting tube 14 and the air bag sealing valve 15, and the esophagus can be sealed after the branch tube air bag 13 is filled. During the respiratory support process, gas, liquid, etc. in the esophagus may be discharged out of the body through the oral drainage branch tube 12. Fig. 2 shows that the air flow regulator is in the form of an air clamp 16, and a branch pipe connector 17 is further provided at the end of the oral drainage branch pipe 12, and the branch pipe connector 17 can be connected and fitted to a liquid container 32 for containing liquid or the like. The oral drainage check valve is typically provided in the end of the oral drainage manifold 12 and may be adjacent to the manifold connection 17. Of course, after set up branch pipe gasbag 13 on oral cavity flowing back branch pipe 12, can also set up oral cavity flowing back manifold hole on oral cavity flowing back branch pipe 12, oral cavity flowing back manifold hole link up oral cavity flowing back branch pipe 12, and the liquid in oropharynx intracavity can be through oral cavity flowing back manifold hole and get into oral cavity flowing back branch pipe 12 in, then can be through oral cavity flowing back branch pipe 12 discharge external.

As shown in fig. 6, the main body of the oral drainage tube is parallel to the nasopharyngeal airway 10, the oral drainage tube comprises an oral drainage guide part 27 located 1cm to 4cm in front of the nasopharyngeal airway 10 and an oral drainage tube body 30 communicated with the oral drainage guide part 27, and the front section of the oral drainage tube body 30 is integrally formed or fixedly connected with the nasopharyngeal airway 10; the oral cavity liquid drainage guide part 27 is provided with a plurality of liquid drainage guide openings; the nasopharyngeal cavity vent pipe 10 is isolated from the oral cavity liquid drainage guide part 27, a nasopharyngeal cavity vent pipe air vent is arranged on the nasopharyngeal cavity vent pipe 10, and the nasopharyngeal cavity vent pipe air vent is positioned behind the liquid drainage guide opening.

In the embodiment of the present invention, the oral drainage tube 33 is matched with the nasopharyngeal cavity vent tube 10 to form a respiratory support and an oral drainage, wherein the oral drainage tube 33 comprises an oral drainage guide portion 27 and an oral drainage tube portion 30, and the tube diameter of the oral drainage guide portion 27 is larger than the tube diameter of the oral drainage tube portion 30. When the oral drainage tube 33 is composed of the oral drainage guide 27 and the oral drainage tube body 30, the body of the oral drainage tube 33 is parallel to the length direction of the nasopharyngeal cavity vent tube 10, and the end of the oral drainage tube body 30 is generally located outside the end of the nasopharyngeal cavity vent tube 10, so that the oral drainage tube body 30 can be connected and matched with the liquid container 32.

In specific implementation, the drainage guide port at the end of the oral drainage guide part 27 includes a drainage guide port 28 and a guide side hole 29 penetrating the oral drainage guide part 27, and the nasal-pharyngeal airway vent on the nasal-pharyngeal airway 10 includes a vent release side hole 25 and a vent release side hole 26, wherein the oral drainage guide port 28 is located at the end of the oral drainage guide part 27, and the guide side hole 29 is located at the side of the oral drainage guide part 27. The vent release port 26 is located at the end of the nasopharyngeal cavity vent tube 10, and the vent release side hole 25 is located outside the vent release port 26 on the nasopharyngeal cavity vent tube 10.

When the oral liquid drainage device is used specifically, the air vent release port 26 can be aligned with the respiratory tract, the air released by the air vent release port 26 and the air vent release side hole 25 can be partially discharged into the oral liquid drainage guide part 27 and then discharged out of the body after passing through the oral liquid drainage tube body 30, and the air and the liquid can conveniently enter the oral liquid drainage guide part 27 due to the fact that the pipe diameter of the oral liquid drainage guide part 27 is larger than that of the oral liquid drainage tube body 30, and the air and the liquid discharging efficiency is improved. In fig. 6, which shows the case where the air flow regulator employs the air flow regulating valve 31, an oral discharge check valve may be provided at the end of the oral discharge tube body 30.

When the device is specifically implemented, the oral liquid discharge pipe and the nasopharyngeal cavity vent pipe 10 can adopt an integrally formed structural form, at the moment, the nasopharyngeal cavity vent pipe 10 can be formed through the vent pipe part 24, the oral liquid discharge pipe 33 is formed on the other part, and the oral liquid discharge pipe 33 is isolated from the vent pipe part 24, so that gas is prevented from directly escaping through the oral liquid discharge pipe 33.

Of course, the oral drainage mechanism may also adopt other structural forms as long as it can discharge a small amount of gas in the respiratory support process, and can take liquid out of the body by using the positive pressure of the discharged gas, and it may be specifically selected and determined according to actual needs, and the description is not repeated here.

In conclusion, for conscious patients, as the nasal cavity vent pipe 5 and the nasopharyngeal cavity vent pipe 10 do not invade the air passage, the smoothness of the air passage and the oral cavity can be kept, mechanical auxiliary ventilation can be implemented, and language communication, food intake and autonomous liquid drainage in the respiratory support process can be facilitated, so that the workload of medical staff is reduced, the communication of illness states is facilitated, and sputum can be effectively discharged through the oral cavity liquid drainage pipe 33; does not invade the air passage, reduces the stimulation to the tracheal mucosa and further reduces the production of sputum. For unconscious patients, sputum in the oral cavity can be automatically discharged through the oral liquid discharge pipe 33 under the action of positive pressure gas in the process of respiratory support, so that the workload of medical staff is reduced.

Claims

1. The utility model provides a high comfort breathes management instrument suitable for back position suffers from, characterized by: including nasal cavity breather pipe (5) that can put into a nasal cavity, can get into nasopharyngeal cavity breather pipe (10) of nasopharyngeal cavity and can with respiratory connecting pipe (1) that nasal cavity breather pipe (5) and nasopharyngeal cavity breather pipe (10) communicate respectively through another nasal cavity, nasal cavity breather pipe (5), nasopharyngeal cavity breather pipe (10) can be with the nasal cavity adaptation of putting into respectively, nasal cavity breather pipe (5), nasopharyngeal cavity breather pipe (10) can be ventilated with required mechanical control of implementation after breathing machine or anesthesia machine sealing connection through respiratory connecting pipe (1).

2. The high comfort breathing management tool for a patient in a supine position of claim 1, wherein: the outer wall of the nasal vent pipe (5) is provided with a nasal vent pipe sealing body (6), and the nasal vent pipe (5) can be in sealing contact with the inner wall of the embedded nostril through the nasal vent pipe sealing body (6); the outer wall of the nasopharyngeal cavity vent pipe (10) is provided with a nasopharyngeal cavity vent pipe sealing body (8), and the nasopharyngeal cavity vent pipe (10) can be in sealing contact with the placed nostril through the nasopharyngeal cavity vent pipe sealing body (8);

nasal cavity breather pipe seal (6) are including the protruding or a plurality of external diameter gradual change's that is calabash form seal ring membrane, nasopharynx chamber breather pipe seal (8) are including the protruding or a plurality of external diameter gradual change's that are calabash form seal ring membrane.

3. A high comfort breathing management tool suitable for use with a patient in a supine position according to claim 1 or 2, wherein: the tail end of the nasal cavity vent pipe (5) is provided with a nasal cavity vent joint (3), and the nasal cavity vent joint (3) is communicated with the nasal cavity vent pipe (5) in a sealing way; the tail end of the nasopharyngeal cavity vent pipe (10) is provided with a nasopharyngeal cavity vent joint (7), and the nasopharyngeal cavity vent joint (7) is communicated with the nasopharyngeal cavity vent pipe (10) in a sealing way;

the breathing connecting pipe (1) is communicated with the nasal cavity breather pipe (5) through a nasal cavity ventilating joint (3), and the breathing connecting pipe (1) can be communicated with the nasopharyngeal cavity breather pipe (10) through a nasopharyngeal cavity ventilating joint (7).

4. A high comfort breathing management tool for patients in the supine position according to claim 3 wherein: the nasal cavity drainage device further comprises an oral cavity drainage mechanism arranged on the nasal cavity ventilation pipe (5) or the nasopharyngeal cavity ventilation pipe (10), the oral cavity drainage mechanism comprises an oral cavity drainage pipe (33), and a pipe orifice at the head end of the oral cavity drainage pipe (33) can be arranged at the bottom of the oropharyngeal cavity through the nasal cavity ventilation pipe (5) or the nasopharyngeal cavity ventilation pipe (10); when the patient in the supine position is ventilated by mechanical control, the liquid at the bottom of the oropharyngeal cavity can be discharged out of the body through the oral liquid discharge pipe (33) under the action of the positive airway ventilation pressure.

5. The high comfort breathing management tool for a patient in a supine position of claim 4, wherein: also comprises an airflow measuring device (36) which can measure the flow of the gas discharged through the oral liquid discharge pipe (33) and a gas flow rate regulator (37) which can regulate the flow rate of the gas discharged through the oral liquid discharge pipe (33).

6. A high comfort breathing management tool suitable for use with a patient in a supine position according to claim 4 or 5, wherein: oral cavity flowing back fluid dram (33) include with nasopharynx chamber breather pipe (10) or nasal cavity breather pipe (5) adaptation oral cavity flowing back branch pipe (12), oral cavity flowing back branch pipe (12) can penetrate nasopharynx chamber breather pipe (10) or penetrate nasal cavity breather pipe (5) through nasal cavity breather pipe (3) through nasopharynx chamber joint (7), and the tail end of oral cavity flowing back branch pipe (12) can be located the bottom in oropharynx chamber, the head end of oral cavity flowing back branch pipe (12) is located nasopharynx chamber and ventilates to connect (7) or nasal cavity and ventilate to connect (3) outside, oral cavity flowing back branch pipe (12) and nasal cavity are ventilated and are connected (3), nasopharynx chamber and ventilate and connect (7) sealing connection.

7. The high comfort breathing management tool for a patient in a supine position of claim 6, wherein: the main body of the oral liquid drainage pipe is in a parallel state with the nasopharyngeal cavity vent pipe (10), the oral liquid drainage pipe comprises an oral liquid drainage guide part (27) which is 1cm-4cm in front of the nasopharyngeal cavity vent pipe (10) and an oral liquid drainage pipe body part (30) which is communicated with the oral liquid drainage guide part (27), and the front section of the oral liquid drainage pipe body part (30) is integrally formed or fixedly connected with the nasopharyngeal cavity vent pipe (10); the oral cavity liquid drainage guide part (27) is provided with a plurality of liquid drainage guide openings; the nasopharynx cavity breather pipe (10) is isolated from the oral liquid drainage guide part (27), a nasopharynx cavity breather pipe vent port is arranged on the nasopharynx cavity breather pipe (10), and the nasopharynx cavity breather pipe vent port is positioned behind the liquid drainage guide port.

8. The high comfort breathing management tool for a patient in a supine position of claim 4, wherein: the oral liquid discharge pipe (33) is internally provided with a one-way valve in a matching connection way, and the one-way valve can block the gas discharged from the oral liquid discharge pipe (33) and the backflow of the liquid in the oral cavity.

9. The high comfort breathing management tool for a patient in a supine position of claim 1, wherein: the utility model also comprises a lip sealing body which can seal the oral cavity, wherein the lip sealing body comprises a cover body arranged outside the lip or a sheet-shaped sealing rubber block arranged between the lip and the gum.

10. The high comfort breathing management tool for a patient in a supine position of claim 5, wherein: the liquid storage device is characterized by further comprising a liquid storage device (32) capable of storing liquid discharged through an oral liquid discharge pipe (33), the tail end of the oral liquid discharge pipe (33) can extend into the liquid storage device (32), an exhaust pipe (35) is further arranged on the liquid storage device (32), a water-blocking and air-permeable film (34) is arranged at the joint of the exhaust pipe (35) and the liquid storage device (32), and the air flow measurer (36) and the gas flow rate regulator (37) are in adaptive connection with the exhaust pipe (35).