CN112891696A

CN112891696A - Biting type auxiliary device for oxygen inhalation of dyspnea patient

Info

Publication number: CN112891696A
Application number: CN202110121494.9A
Authority: CN
Inventors: 谭浩蕾; 黄文孝; 张海林
Original assignee: Hunan Cancer Hospital
Current assignee: Hunan Cancer Hospital
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2021-06-04

Abstract

The invention belongs to the technical field of medical auxiliary equipment, and particularly relates to an occlusion type auxiliary device for oxygen inhalation of a patient with dyspnea. The method comprises the following steps: the front surface of the mask is detachably communicated with one end of an oxygen pipe; one end of the oxygen cannula is communicated with the oxygen tube and is arranged on the rear surface of the mask, and the other end of the oxygen cannula is inserted into the trachea of the patient or is placed in the oral cavity of the patient to be close to the trachea; interlock device, including last interlock spare, connection frame, gasbag and interlock spare down, the connection frame top with go up the interlock spare and connect, the bottom with interlock spare fixed connection down, on the connection frame, be located go up the interlock spare with it is provided with to interlock between the spare down the gasbag, the inside of gasbag runs through to have the oxygen cannula, the gasbag intussuseption is filled with gas. The oxygen intubation and the occlusion device have the function of dredging the trachea, and the problem of difficult breathing can be solved.

Description

Biting type auxiliary device for oxygen inhalation of dyspnea patient

Technical Field

The invention belongs to the technical field of medical auxiliary equipment, and particularly relates to an occlusion type auxiliary device for oxygen inhalation of a patient with dyspnea.

Background

Clinically, patients with dyspnea or respiratory failure often require oxygen inhalation. Patients who suffer from respiratory failure or dyspnea include severe patients, patients with hypopharyngeal cancer, patients with laryngeal cancer, and the like. The severe patients mainly refer to patients with serious diseases and live in ICU monitoring, and the patients with hypopharyngeal cancer or laryngeal cancer mainly refer to patients with pathological changes of the laryngopharynx. Laryngeal carcinoma is divided into primary and secondary. Primary laryngeal carcinoma refers to a tumor of the primary site in the larynx, most commonly squamous cell carcinoma. Secondary laryngeal carcinoma refers to metastasis of malignant tumors from other sites to the larynx, and is rare. The trachea mouth is an important part for inhaling oxygen, and the blockage of the part can block the trachea passage, thereby causing the problems of difficult breathing and the like.

In order to relieve the symptoms of dyspnea clinically, an oxygen inhalation device is generally adopted for adjuvant therapy. However, the oxygen inhalation device of the prior art only comprises an oxygen generator and an oxygen inhalation mask connected with the oxygen generator. For example, chinese patent CN205698818U discloses an oxygen mask for department of respiratory medicine, which includes an oxygen mask with a circular arc-shaped cross section, an air inlet on one side of the oxygen mask is connected with an oxygen hose, the other end of the oxygen hose is connected with an oxygen generator and an air blowing cover through two branch pipes, an air inlet of the oxygen mask is provided with a net, a gap is left in the net, and a sponge pad is arranged in the gap. This breathe oxygen mask for internal medicine, convenient operation, can alleviate medical personnel's burden, guarantee the normal clear of rescue work. However, this oxygen inhalation device lacks a component for dredging the trachea opening, and although the oxygen content of the patient can be increased after using the oxygen inhalation device, if the trachea opening cannot be dredged, the air intake of the patient is still limited, and the problem of difficult breathing still exists. Therefore, it is necessary to develop an auxiliary device for dredging the air pipe orifice.

Disclosure of Invention

In order to solve the technical problem, the invention provides an occlusion type auxiliary device for oxygen inhalation of a patient with dyspnea.

The invention aims to provide an occluding auxiliary device for oxygen inhalation of a patient with dyspnea, which comprises:

the front surface of the mask is detachably communicated with one end of an oxygen pipe;

the oxygen cannula is positioned at the rear side of the mask, one end of the oxygen cannula is detachably communicated with the oxygen tube, and the other end of the oxygen cannula is inserted into the trachea opening of the patient or is placed in the oral cavity of the patient to be close to the trachea opening;

interlock device, it includes interlock spare, connection frame, gasbag and interlock spare down, the top of connection frame with it connects to interlock spare, the bottom of connection frame with interlock spare fixed connection down, on the connection frame, be located go up interlock spare with it is provided with to interlock spare department down between the spare the gasbag, the inside of gasbag runs through there is the oxygen cannula, the gasbag intussuseption is filled with gas.

Preferably, the bite type auxiliary device for oxygen inhalation of a patient with dyspnea further comprises flexible adhesive layers respectively disposed on the top of the upper bite piece and the bottom of the lower bite piece.

Preferably, in the bite-type auxiliary device for oxygen inhalation of patients with dyspnea, the air bag and the connecting frame are both made of flexible materials, and the upper bite piece and the lower bite piece are made of hard materials.

Preferably, the bite-type auxiliary device for oxygen inhalation of a patient with dyspnea is configured such that the balloon is in communication with the oxygen cannula, and the oxygen cannula is provided with a one-way gas valve for allowing only oxygen to be delivered from outside the patient's body to inside the patient's body.

Preferably, the bite type assisting device for oxygen inhalation of a patient with dyspnea further includes:

an esophagus, one end of which is used for injecting liquid food;

a food cannula having one end for insertion into the patient's esophagus;

one end of the food installation tube penetrates through the mask and the connecting frame and is connected with the other end of the food insertion tube; the other end of the food installation tube is detachably connected with the other end of the esophagus.

a sputum aspirator having one end for insertion into the oral cavity of a patient;

one end of the sputum suction installation pipe penetrates through the mask and the connecting frame and is connected with the other end of the sputum suction pipe; the other end of the sputum suction installation pipe is detachably connected with a sputum suction device.

Preferably, above-mentioned bite-type auxiliary device for breathing difficulty patient oxygen uptake, the food intubate the oxygen intubate the phlegm suction pipe transversely sets up side by side from a left side to the right side, the food installation pipe with the phlegm suction installation pipe is the rigid pipe, the food intubate the phlegm suction pipe is located the carriage rear.

Preferably, in the bite-type auxiliary device for oxygen inhalation of a patient with dyspnea, the food cannula, the oxygen cannula and the sputum suction tube are longitudinally arranged side by side from top to bottom;

the occlusion device further comprises an upper connecting plate and a lower connecting plate, the upper connecting plate and the lower connecting plate are used for separating the connecting frame into an upper cavity, a middle cavity and a lower cavity which are distributed from top to bottom, the food installation tube is arranged in the upper cavity, the sputum suction installation tube is arranged in the lower cavity, and the air bag is arranged in the middle cavity.

Preferably, the upper cavity and the lower cavity are made of hard materials, the top wall and the bottom wall of the middle cavity are made of hard materials, and the side wall of the middle cavity is made of elastic materials or flexible materials.

Compared with the prior art, the invention has the following beneficial effects:

1. for patients who have difficulty in breathing and often breathe mouth open, for example, patients with throat cancer or cancer of the lower pharynx invading the throat breathe mouth open due to sore and itching throat or blockage, although a common breathing mask can cover the nose and mouth of the patient, the amount of oxygen inhaled is still small due to the possible blockage phenomenon of the trachea opening of the patient. The device of the present invention therefore provides for the direct delivery of oxygen into the trachea of a patient or near the ostium of the trachea to increase the amount of oxygen inspired by the patient. And when the oxygen cannula is inserted into the trachea, the trachea can be dredged.

2. In order to prevent the oxygen cannula from being gradually pressed due to the blockage of the tracheal opening of a patient, the invention also designs the occluding device, when the patient feels that the laryngeal blockage of the patient causes the entering amount of oxygen to be suddenly reduced, the occluding device is placed into the oral cavity, the upper teeth are contacted with the upper occluding piece, the lower teeth are contacted with the lower occluding piece, the patient carries out occluding action of the upper teeth and the lower teeth independently or under the help of medical personnel, the oxygen cannula is forced to be temporarily closed or the ventilation amount is reduced when the air bag is compressed, the oxygen cannula recovers ventilation work when the air bag is naturally stretched, the alternate occluding action enables the air pressure of the air flow in the oxygen cannula to be slightly changed, and the occluding device has a micro-impact effect on the trachea of the patient, so that the blocked trachea is reopened, namely the.

3. In order to facilitate feeding, the oral cavity nursing device is also provided with a food cannula, and in order to suck redundant mucus generated in the oral cavity of a patient, the oral cavity nursing device is also provided with a sputum suction tube, so that oxygen inhalation and food intake of the patient can be simultaneously carried out, or the oxygen inhalation and the sputum suction can be simultaneously carried out.

Drawings

Fig. 1 is a structural and operational schematic diagram of a bite type assisting device for oxygen inhalation of a patient with dyspnea in embodiment 1 of the present invention;

fig. 2 is a schematic structural view of an engaging device according to embodiment 1 of the present invention;

fig. 3 is a front view of an engaging device of embodiment 2 of the present invention;

fig. 4 is a side view of the occluding device of embodiment 2 of the present invention.

Detailed Description

In order that those skilled in the art will better understand the technical solutions of the present invention to be implemented, the present invention will be further described with reference to the following specific embodiments and accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center," "upper," "lower," "left," "right," "inner," "outer," and the like refer to orientations or positional relationships based on the orientation or positional relationships illustrated in the drawings, with the "front" orientation referring to the side of the mask facing away from the patient when the mask is in use by the patient, and the "rear" orientation referring to the side of the mask facing toward the patient when the mask is in use by the patient, and the above directional terms are merely for convenience in describing and simplifying the present invention, and do not indicate or imply that the device or component being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Example 1

The embodiment provides a dyspnea patient's interlock formula auxiliary device for oxygen uptake, refer to fig. 1-2, including face guard 1, interlock device 2 and oxygen intubate 3, the front surface of face guard 1 is equipped with oxygen installation pipe, the one end of oxygen installation pipe runs through and inserts the inside of face guard 1, the other end of oxygen installation pipe is used for dismantling the one end of grafting oxygen hose 4, oxygen hose 4 is located face guard 1 front side, in order to guarantee the gas tightness, be equipped with the sealing washer between oxygen installation pipe and the oxygen hose 4, the other end of oxygen hose 4 is used for being connected with oxygen generating device. The oxygen cannula 3 is located the rear side of face guard 1, and its one end can be dismantled with the oxygen installation pipe and peg graft, in order to guarantee the gas tightness, also be equipped with the sealing washer between oxygen installation pipe and the oxygen cannula 3, the other end of oxygen cannula 3 is used for inserting patient's trachea or puts into the patient oral cavity and is close the position of trachea mouth, if insert in the trachea, then the depth of insertion of oxygen cannula 3 in patient's trachea is 1-3 cm. The oxygen generated by the oxygen generating device can pass through the oxygen tube 4, the oxygen installation tube and the oxygen cannula 3 in sequence, and is finally inhaled into the lung by the patient. For patients with laryngeal cancer and hypopharyngeal cancer, due to the existence of tumors in the laryngeal part of the pharynx, the laryngeal part of the patients is blocked, painful and difficult to breathe, so the patients often breathe with mouth opening and poor ventilation function; in severe patients, the patient may breathe by mouth opening because of weakness or long-term bed-ridden falling pneumonia, the decrease of oxygen inhalation amount at the nose and the decrease of ventilation and air exchange functions of the lung. Although a common breathing mask can cover the nose and mouth of a patient, the trachea opening of the throat of the patient can be blocked, so that the oxygen amount of the inhaled air is still small. The device of this embodiment therefore delivers oxygen directly into the patient's trachea or tracheostomy tube opening, increasing the amount of oxygen that the patient breathes in.

In addition, in order to prevent the oxygen cannula 3 from being gradually pressed due to the blockage of the patient's trachea opening, the occlusion device 2 is further designed in the present embodiment, referring to fig. 2, the occlusion device includes an upper occlusion member 21, a connection frame 22, an air bag 23 and a lower occlusion member 24, the top of the connection frame 22 is connected to the bottom of the upper occlusion member 21, the bottom of the connection frame 22 is fixedly connected to the top of the lower occlusion member 24, the air bag 23 is placed in the center of the connection frame 22 and located between the upper occlusion member 21 and the lower occlusion member 24, the top of the air bag 23 is fixedly connected to the inner top of the connection frame 22, the bottom of the air bag 23 is fixedly connected to the inner bottom of the connection frame 22, the oxygen cannula 3 penetrates through the air bag 23, the air bag 23 is filled with gas, and the air bag 23 and the connection frame 22 are made of one of a flexible material or an.

When the device of the embodiment is used, the occluding device 2 is put into the oral cavity of a patient, or the occluding device 2 is put out of the oral cavity of the patient, but can be put into the oral cavity of the patient at any time; wear face guard 1 at patient's face, face guard 1 only covers patient's oral area, and patient's nose can freely breathe, for conveniently wearing, is equipped with the elastic cord on face guard 1. When the occluding device 2 does not work, the oral cavity of the patient is naturally opened or closed, the air bag 23 can not press the oxygen cannula 3, and the oxygen generated by the oxygen generating device enters the lung of the patient through the oxygen cannula 3. When the patient feels that the laryngeal obstruction causes the oxygen intake amount to suddenly decrease, the patient puts the occluding device 2 into the oral cavity, the upper teeth contact with the upper occluding member 21, the lower teeth contact with the lower occluding member 24, the patient performs the occlusion action of the upper and lower teeth autonomously or with the help of medical staff, and if the occluding device 2 is already placed in the oral cavity, the occlusion action of the upper and lower teeth is directly performed, that is, the operation of the occluding device 2 is started at this time. When the patient engages or disengages the upper and lower teeth, the distance between upper and lower engaging

members

21 and 24 is substantially negligible, leaving air bladder 23 in a state change of compression and natural extension. Alternatively, the occluding device 2 is not placed in the mouth of the patient, and the medical staff directly and repeatedly squeezes the occluding device 2 to place the balloon 23 in a state change of compression and natural expansion. When the air bag 23 is compressed, the oxygen cannula 3 is forced to be temporarily closed or the ventilation volume is reduced, when the air bag 23 is naturally stretched, the oxygen cannula 3 recovers the ventilation work, the alternate occlusion action enables the airflow pressure in the oxygen cannula 3 to be slightly changed, and the micro-impact effect is provided for the trachea of a patient, so that the blocked trachea is opened again, namely the function of dredging the trachea is achieved. Because the human body has short time and closes the gas function, and the oxygen intubate 3 that this application set up when inserting the trachea, originally just can dredge the trachea, and interlock device 2 is used for the mediation of proruption trachea oppression jam in addition, and is consuming time short, so interlock of intermittent type nature or extrusion interlock device 2 do not influence holistic oxygen delivery effect.

In order to improve the comfort, the mask 1 adopts a hollow mask structure which accords with the physiological form of the face of a human body, and in order to ensure that air inhaled by the nose of a patient can also enter the trachea, a distance of 1-2mm is reserved between the oxygen intubation tube 3 and the trachea. In order to improve the comfort and effectiveness of occlusion of a patient, upper occlusion piece 21 and lower occlusion piece 24 are made of medical hard plastic materials, corrugated flexible adhesive layers 211 are arranged on the top of upper occlusion piece 21 and the bottom of lower occlusion piece 24, and flexible adhesive layers 211 are made of latex, rubber or sterile cotton materials.

Further, in order to feed food conveniently, this embodiment has still set up food intubation 6, installs food installation pipe 61 on the face guard 1, and behind face guard 1 and the connection frame 22 was run through to the one end of food installation pipe 61 for connect the one end of food intubation 6, food intubation 6 is located the rear side of face guard 1, and the other end of food installation pipe 61 is used for dismantling the one end that the grafting has esophagus 5, and esophagus 5 is located the front side of face guard 1. In order to ensure air tightness, a sealing ring is also arranged between the food mounting tube 61 and the esophagus 5. The other end of the esophagus 5 is used for injecting liquid food, one end of the food inserting tube 6 is detachably inserted into the food installing tube 61, a sealing ring is also arranged between the food installing tube 61 and the food inserting tube 6 in order to ensure air tightness, the other end of the food inserting tube 6 is used for being inserted into the esophagus of a patient through the oral cavity or nasal organs, and the insertion depth of the food inserting tube 6 in the esophagus of the patient is 1-3 cm. Food can be injected into the patient through the esophagus 5 and the food cannula 6, and the patient can inhale oxygen and eat food simultaneously.

Further, in order to absorb unnecessary mucus that produces in the patient oral cavity, this embodiment has still set up and has inhaled phlegm pipe 7, install on the face guard 1 and inhale phlegm installation pipe 71, inhale the one end of phlegm installation pipe 71 and run through behind face guard 1 and the connecting frame 22, be used for connecting and inhale phlegm pipe 7, inhale the other end of phlegm installation pipe 71 and be used for dismantling and connect the sputum aspirator, in order to guarantee the gas tightness, also be equipped with the sealing washer between phlegm installation pipe 71 and the sputum aspirator, the sputum aspirator can adopt syringe or other commercially available sputum aspirators. The other end of the sputum suction installation pipe 71 is detachably inserted with one end of the sputum suction pipe 7, a sealing ring is also arranged between the sputum suction installation pipe 71 and the sputum suction pipe 7 in order to ensure air tightness, and the other end of the sputum suction pipe 7 is arranged in the oral cavity of a patient.

In the present embodiment, the food cannula 6, the oxygen cannula 3 and the sputum aspirator 7 are arranged side by side from left to right in a transverse direction, see fig. 2. The food installation tube 61 and the sputum suction installation tube 71 are hard tubes embedded in the connecting frame 22, the food insertion tube 6 and the sputum suction tube 7 are made of medical insertion tube materials, and the food insertion tube 6 and the sputum suction tube 7 are located behind the connecting frame 22 and are prevented from deforming in the occlusion process.

Example 2

The bite type assisting device for oxygen inhalation of a patient with dyspnea according to the present embodiment has basically the same structure as that of embodiment 1, and is different therefrom in that: the food intubation tube 6, the oxygen intubation tube 3 and the sputum suction tube 7 are longitudinally arranged side by side from top to bottom, referring to fig. 3-4, the occlusion device 2 not only comprises an upper occlusion piece 21, a connecting frame 22, an air bag 23 and a lower occlusion piece 24, but also comprises an upper connecting plate 25 and a lower connecting plate 26, the connecting frame 22 is divided into three cavities which are distributed from top to bottom by the upper connecting plate 25 and the lower connecting plate 26, the three cavities are respectively named as an upper cavity, a middle cavity and a lower cavity, the food installation tube 61 is embedded in the upper cavity, the sputum suction installation tube 71 is embedded in the lower cavity, the air bag 23 is arranged in the center of the middle cavity and between the upper occlusion piece 21 and the lower occlusion piece 24, the top of the air bag 23 is fixedly connected with the top in the middle cavity, the bottom of the air bag 23 is fixedly connected with the inner bottom of the middle cavity, and; the upper cavity and the lower cavity are made of hard materials, the top wall and the bottom wall of the middle cavity are made of hard materials, the side wall of the middle cavity is made of elastic materials or flexible materials, and the top of the upper engaging piece 21 are still provided with corrugated flexible adhesive layers 211.

Example 3

The bite type assisting device for oxygen inhalation of a patient with dyspnea according to the present embodiment has basically the same structure as that of embodiment 1, and is different therefrom in that: the air sac 23 is communicated with the oxygen cannula 3, oxygen can enter the air sac 23 and can also flow out of the air sac 23, and a one-way air valve is arranged on the oxygen cannula 3 and only allows the oxygen to be transmitted from the outside of a patient to the inside of the patient. When the occluding device 2 is occluded or extruded according to the working principle of the embodiment 1, the air bag 23 is compressed, oxygen in the oxygen cannula 3 communicated with the air inside the air bag flows into the trachea of a patient, the air flow in a short time is increased, and the trachea of the patient can be dredged. When the occluding device 2 is not occluded or squeezed, the air bag 23 is refilled with oxygen. The oxygen cannula 3 can adopt a cannula with micro-deformation capability, and when the occluding device 2 is occluded and released alternately, a large amount of gas is intermittently blown into the oxygen cannula 3, the inner diameter of the oxygen cannula is alternately deformed between increasing and restoring, and the trachea dredging can be accelerated.

It should be noted that, the connection relation of the components not specifically mentioned in the present invention is the default of the prior art, and the connection relation of the structures is not described in detail since it does not relate to the invention point and is a common application of the prior art.

It should be noted that, when the present invention relates to a numerical range, it should be understood that two endpoints of each numerical range and any value between the two endpoints can be selected, and since the steps and methods adopted are the same as those in the embodiment, in order to prevent redundancy, the present invention describes a preferred embodiment. While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. An occlusion type auxiliary device for oxygen inhalation of a patient with dyspnea, comprising:

the front surface of the mask (1) is detachably communicated with one end of an oxygen pipe (4);

the oxygen cannula (3) is positioned at the rear side of the mask (1), one end of the oxygen cannula is detachably communicated with the oxygen tube (4), and the other end of the oxygen cannula is inserted into a tracheal opening of a patient or is placed in the oral cavity of the patient to be close to the tracheal opening;

interlock device (2), it includes interlock piece (21), coupling frame (22), gasbag (23) and interlock piece (24) down, the top of coupling frame (22) with interlock piece (21) is connected on going up, the bottom of coupling frame (22) with interlock piece (24) fixed connection down, on coupling frame (22), be located interlock piece (21) and locate to be provided with between interlock piece (24) down gasbag (23), the inside of gasbag (23) is run through and is had oxygen cannula (3), gasbag (23) intussuseption is filled with gas.

2. The bite-type auxiliary device for oxygen inhalation of a patient with dyspnea according to claim 1, further comprising a flexible adhesive layer (211) respectively disposed on the top of said upper bite piece (21) and the bottom of said lower bite piece (24).

3. The bite-type auxiliary device for oxygen inhalation of a patient with dyspnea according to claim 1, wherein the air bag (23) and the connecting frame (22) are made of a flexible material, and the upper bite piece (21) and the lower bite piece (24) are made of a hard material.

4. The bite-type oxygen inhalation aid device for patients with dyspnea as claimed in claim 3, wherein the air bag (23) is in communication with the oxygen cannula (3), and the oxygen cannula (3) is provided with a one-way air valve to allow only oxygen to be delivered from outside the patient to inside the patient.

5. The bite-type assisting device for oxygen inhalation of a patient with dyspnea according to claim 1, further comprising:

an esophagus (5) with one end for injecting liquid food;

a food cannula (6) having one end for insertion into the patient's esophagus;

a food mounting tube (61), one end of which penetrates through the mask (1) and the connecting frame (22) and is connected with the other end of the food inserting tube (6); the other end of the food mounting tube (61) is detachably connected with the other end of the esophagus (5).

6. The bite-type assisting device for oxygen inhalation of a patient with dyspnea according to claim 5, further comprising:

a sputum suction tube (7) having one end inserted into the oral cavity of the patient;

a sputum suction installation pipe (71), one end of which penetrates through the mask (1) and the connecting frame (22) and is connected with the other end of the sputum suction pipe (7); the other end of the sputum suction installation pipe (71) is detachably connected with a sputum suction device.

7. The occlusion type auxiliary device for oxygen inhalation of patients with dyspnea as claimed in claim 6, wherein the food cannula (6), the oxygen cannula (3) and the sputum suction tube (7) are arranged side by side from left to right, the food mounting tube (61) and the sputum suction mounting tube (71) are rigid tubes, and the food cannula (6) and the sputum suction tube (7) are located behind the connecting frame (22).

8. The bite type auxiliary device for oxygen inhalation of patients with dyspnea according to claim 6, wherein the food cannula (6), the oxygen cannula (3) and the sputum suction tube (7) are arranged side by side in the longitudinal direction from top to bottom;

interlock device (2) still include upper junction plate (25) and lower junction plate (26), and the two will last cavity, well cavity and the lower cavity that from the top down distributes are separated into in connecting frame (22), food installation pipe (61) are located in the last cavity, inhale phlegm installation pipe (71) and locate in the lower cavity, gasbag (23) are located in the well cavity.

9. The bite-type auxiliary device for oxygen inhalation of a patient with dyspnea of claim 8, wherein the upper cavity and the lower cavity are both made of hard materials, the top wall and the bottom wall of the middle cavity are made of hard materials, and the side wall of the middle cavity is made of elastic materials or flexible materials.