CN120000867A

CN120000867A - Respiratory tract obstruction removal device

Info

Publication number: CN120000867A
Application number: CN202311525457.XA
Authority: CN
Inventors: 罗大伟
Original assignee: Shenzhen Sanyi Enterprise Technology Co ltd
Current assignee: Shenzhen Sanyi Enterprise Technology Co ltd
Priority date: 2023-11-15
Filing date: 2023-11-15
Publication date: 2025-05-16

Abstract

A respiratory obstruction removing device comprises a mask and negative pressure generating equipment, wherein the negative pressure generating equipment comprises a holding part, a telescopic pipe body and an annular interface which are sequentially connected, the telescopic pipe body is provided with a variable cavity with a variable volume, the mask comprises an upper part opposite to the annular interface, a lower part opposite to a cheek of a human body and a connecting body for connecting the upper part and the lower part, the respiratory obstruction removing device further comprises a first one-way valve which is arranged on the annular interface and is used for communicating the mask and sucking gas into the telescopic pipe body in a one-way manner, and a second one-way valve which is used for discharging gas into the telescopic pipe body in a one-way manner from the telescopic pipe body to the outside, so that when the telescopic pipe body is compressed and stretched, the gas of the mask is continuously sucked out and discharged to the outside so as to remove respiratory obstruction, the holding part and the telescopic pipe body are movably connected and designed in an inverted manner, the volume of the removing device is reduced, and the respiratory obstruction removing device is more convenient to carry and transport, and emergency use in different scenes is supported.

Description

Respiratory tract obstruction clearing device

Technical Field

The invention relates to the technical field of medical appliances, in particular to a respiratory tract obstruction removing device.

Background

There are many reasons for the occurrence of obstruction of the respiratory tract, thus choking, a serious series of consequences that can occur if no first aid is administered within 4-6 minutes, and the lack of oxygen can rapidly progress to loss of consciousness, even sudden cardiac arrest, and in extreme cases, death. Oxygen is a key element in maintaining normal operation of the brain, and hypoxia can lead to insufficient blood supply to the brain, leading to neuronal cell death, and a cerebral ischemic state, which may further lead to permanent brain damage. Even if suffocating patients survive immediate rescue, cognitive dysfunction, dyskinesias, and other neurological problems may occur due to brain damage. Moreover, these problems can last for a lifetime, severely affecting quality of life. Furthermore, the effects of hypoxia and asphyxia on cardiac function cannot be neglected. Hypoxia can directly affect the heart, leading to arrhythmia, myocardial damage, and other heart problems. These problems may further exacerbate the health of suffocating subjects and increase the risk of complications. Especially for people whose heart function is already weak, such as elderly and chronically ill patients, choking events may put their otherwise fragile heart under greater stress and may even lead to heart attacks or cardiac arrest.

As asphyxia events may occur anywhere and at any time, including in isolated environments, densely populated areas, or on vehicles. In these situations, emergency assistance may not be provided in time due to the lack of an effective airway obstruction removal device or emergency measures, further increasing the risk of choking the subject. For example, during events such as outdoor activities, sports, swimming, choking, etc., these conditions often result in choking events due to the lack of emergency equipment or inability to immediately go to a hospital. Even in the home, choking events may occur without timely airway obstruction removal devices or emergency measures.

Currently, the "Haimlik first aid" is commonly used for the first aid of patients with respiratory obstruction. However, the Hamliki emergency procedure requires the rescuer to apply sufficient force and correct position, which may otherwise lead to poor results or patient injury. In addition, there is also a certain risk and potential complications such as sternal fracture, internal injury or pain, etc. This may occur especially under incorrect operation. Therefore, the Haimlick first aid method is not applicable to all asphyxia causes. For patients suffering from certain diseases, abnormal bone structure, or other special conditions, other emergency procedures may be required. Based on timely solving the vital importance of respiratory tract obstruction to the life and health of suffocating patients, there is a need for an efficient, portable, easy to operate tool that can provide the necessary for emergency rescue for rapidly clearing obstructions in the case of asphyxia emergencies, minimizing potential complications and life risks.

Although, there are already some respiratory obstruction removal devices, such as respiratory aspirators, which aspirate and remove respiratory obstructions by creating negative pressure or vacuum. Typically, respiratory tract aspirators include a mask or conduit that is connected to an aspiration device, such as a manual pump or an electric aspirator. By using negative pressure or vacuum, the airway aspirator can help draw the obstruction out of the airway of the suffocating patient. Portable airway aspirators typically design the aspiration device as one piece with a mask, and the rescuer places the entire device on the face of the suffocating patient, manipulating the device on the face of the suffocating patient, creating a pressure differential to clear the obstruction.

However, existing respiratory obstruction removal devices have some limitations.

Firstly, the existing portable respiratory tract aspirator has large overall size, especially large axial size and can not be disassembled because the negative pressure generating part is of an integrated structure, is a disposable product, is not beneficial to environmental protection, and secondly, some respiratory tract obstruction removing devices possibly have unnecessary risks and complications. In case of improper design or operation, further respiratory tract injuries such as irritation or scratching of the throat and even perforation of the respiratory tract may result, and third, other devices may generate excessive negative pressure or vacuum, which may result in pneumothorax or lung injuries.

Accordingly, there is a need for a new respiratory obstruction removal device that overcomes the limitations of existing devices and provides a more efficient, portable, easy to operate solution. The new device should be designed as simple as possible so that the rescuer can quickly understand and operate in case of an emergency. In addition, the device should be designed to be compact enough to be portable and storable.

Disclosure of Invention

The invention aims to provide a novel respiratory obstruction removing device which is smaller in size, more convenient to transport and carry and more convenient to use, so that the limitation of similar products in the prior art is overcome, and compared with the prior art, the novel respiratory obstruction removing device is more effective, has wider application scenes and space, and can cope with the asphyxia emergency caused by respiratory obstruction in a more feasible treatment mode.

A respiratory obstruction removal device comprising a mask, a negative pressure generating device that acts on the mask with a negative pressure;

The negative pressure generating apparatus includes:

a grip portion including a portion for holding, a top portion and a bottom portion having an open mouth;

the telescopic pipe body is made of elastic materials and is provided with a volume-variable cavity body formed by a hollow structure, and one port is connected with the bottom of the holding part;

the annular interface is arranged at the other port of the telescopic pipe body, which is far away from the holding part, and is provided with a mask interface connected with the mask;

The mask includes:

The mask comprises an annular interface, an upper part, a lower part, a connecting body, a lower part and a connecting body, wherein the annular interface is used for being closely contacted with the face of a human body;

the respiratory obstruction removal device further comprises:

The first one-way valve is arranged on a channel penetrating the annular interface and communicating the telescopic pipe body and the mask, the air inlet end of the first one-way valve is communicated with the mask, the air outlet end of the first one-way valve is communicated with the interior of the telescopic pipe body, when the telescopic pipe body is compressed, the first one-way valve prevents gas in the telescopic pipe body from flowing into the mask, and when the telescopic pipe body is stretched, the first one-way valve allows the gas in the mask to flow into the telescopic pipe body, and in particular, the first one-way valve can be arranged on any part of the mask, the telescopic pipe body and the annular interface in the channel;

The telescopic pipe comprises a holding part, a first one-way valve, a second one-way valve and an air inlet end, wherein the holding part is provided with an air outlet end which is communicated with the outside, the air inlet end is communicated with the telescopic pipe body, when the telescopic pipe body is compressed, the second one-way valve allows air flow in the telescopic pipe body to flow out of the outside, and when the telescopic pipe body is stretched, the second one-way valve is closed to prevent the air flow in the telescopic pipe body from flowing out of the outside and the air flow outside from flowing into the telescopic pipe body so as to maintain the negative pressure environment in the telescopic pipe body.

In one embodiment, the negative pressure generating apparatus further comprises a threaded interface provided at an end of the telescopic tube body adjacent to the bottom of the grip portion for threadably engaging the threads of the bottom of the grip portion.

In one embodiment, the negative pressure generating device further comprises a threaded interface having an inner diameter smaller than an outer diameter of the grip portion, the telescoping tube body having an inner lumen dimension in a normally extended state for receiving the grip portion upside down therein.

In one embodiment, the perimeter of the annular interface is sealingly connected to the perimeter of the telescoping tube body distal to the grip port, and the upper portion of the mask includes a hollow connecting tube opposite and in close proximity to the mask interface of the annular interface.

In one embodiment, the negative pressure generating device comprises an annular interface with a uniform interface of the mask for fitting any one of a plurality of sizes of the hollow connecting tubes having the same outer diameter.

In one embodiment, the negative pressure generating device further comprises a sealing ring for encapsulation between the grip bottom and the threaded interface of the telescopic tube body.

In one embodiment, the grip material has a coefficient of elasticity that is less than the coefficient of elasticity of the telescoping tube body material.

In one embodiment, the outer surface of the grip portion has an anti-slip structure.

The application also discloses a respiratory tract obstruction removing device according to the embodiment of the application, which comprises a mask and negative pressure generating equipment which is communicated with the mask and acts with negative pressure;

The negative pressure generating apparatus includes:

A grip portion including a portion for holding, a top portion and a bottom portion;

the mask comprises an annular interface, an upper part, a lower part, a connecting body and a connecting body, wherein the annular interface is used for being closely contacted with the face of a human body;

the respiratory obstruction removal device further comprises:

The first one-way valve is arranged on a channel penetrating through the annular interface and communicating the telescopic pipe body and the mask, the air outlet end of the first one-way valve is communicated with the interior of the telescopic pipe body, the air inlet end of the first one-way valve is communicated with the mask, and the first one-way valve can be arranged on any part of the mask, the telescopic pipe body and the annular interface in the channel;

The telescopic pipe comprises a mask, a first one-way valve, a second one-way valve and a second one-way valve, wherein the first one-way valve is arranged on the telescopic pipe body, the air outlet end of the second one-way valve is communicated with the outside, the air inlet end of the second one-way valve is communicated with the telescopic pipe body, when the telescopic pipe body is compressed, the first one-way valve is closed to prevent air in the telescopic pipe body from flowing into the mask, the second one-way valve allows air in the telescopic pipe body to flow out of the mask, when the telescopic pipe body is stretched, the first one-way valve is communicated to allow air in the mask to flow into the telescopic pipe body, and the second one-way valve is closed to prevent air in the telescopic pipe body from flowing out of the outside and external air from flowing into the telescopic pipe body, so as to maintain a negative pressure environment in the telescopic pipe body.

In one embodiment, the port of the telescopic tube body adjacent to the connection at the bottom of the grip portion is closed.

In one embodiment, the threaded interface has an inner diameter less than the outer diameter of the grip portion, and the telescoping tube body has an inner cavity in which the grip portion is inverted in a normally extended state.

The application also discloses a respiratory tract obstruction removing device provided by the embodiment of the application, which comprises a mask for covering the cheek and negative pressure generating equipment for acting on the mask by negative pressure;

The negative pressure generating apparatus includes:

the telescopic pipe body is made of elastic materials and comprises a volume-variable cavity body with a hollow structure at the top, the bottom and the middle;

The annular interface is arranged at the bottom of the telescopic pipe body and is provided with a mask interface connected with the mask;

The mask includes:

the respiratory obstruction removal device further comprises:

The telescopic pipe comprises a telescopic pipe body, a first one-way valve, a second one-way valve and a control valve, wherein the telescopic pipe body is provided with a circular connector, the circular connector is provided with a gas outlet end communicated with the outside, a gas inlet end communicated with the telescopic pipe body, when the telescopic pipe body is compressed, the second one-way valve allows gas flow in the telescopic pipe body to flow out of the outside, and when the telescopic pipe body is stretched, the second one-way valve is closed to prevent the gas flow in the telescopic pipe body from flowing out of the outside and the external gas flow to flow into the telescopic pipe body so as to maintain the negative pressure environment in the telescopic pipe body.

Wherein, the material and structure of the telescopic tube body ensure that the axial elastic coefficient of the telescopic tube body is far greater than the elastic coefficients of other directions.

In one embodiment, a handle or a handle buckle is provided at the top of the telescopic tube body, and the elasticity of the handle or the handle buckle is far smaller than the axial elasticity of the telescopic tube body.

In one embodiment, the perimeter of the annular interface is sealingly connected to the perimeter of the bottom of the telescoping tube body, and the upper portion of the mask includes a hollow connecting tube that opposes and engages the mask interface of the annular interface.

The application also discloses a respiratory tract obstruction removing device provided by the embodiment of the application, which comprises a mask and negative pressure generating equipment for acting on the mask by negative pressure;

The negative pressure generating apparatus includes:

The mask includes:

the respiratory obstruction removal device further comprises:

the first one-way valve is arranged on a channel penetrating the annular interface and communicated with the telescopic pipe body and the mask, the air outlet end of the first one-way valve is communicated with the interior of the telescopic pipe body, the air inlet end of the first one-way valve is communicated with the mask, and specifically, the first one-way valve can be arranged on any part of the mask, the telescopic pipe body and the annular interface in the channel.

A second one-way valve having an air outlet end communicating with the outside and an air inlet end communicating with the inside of the telescopic tube, the first one-way valve being closed to prevent the inside of the telescopic tube from flowing into the mask when the telescopic tube is compressed, the second one-way valve allowing the inside of the telescopic tube to flow out of the outside, the first one-way valve being opened to allow the inside of the mask to flow into the telescopic tube when the telescopic tube is extended, the second one-way valve being closed to prevent the inside of the telescopic tube from flowing out of the outside, wherein the first one-way valve and the second one-way valve are provided in reverse directions to each other on the negative pressure generating apparatus

In one embodiment, the respiratory obstruction removing device is characterized in that a pull rope or a handle is arranged at the top of the telescopic tube body.

In one embodiment, the respiratory obstruction removing device is characterized in that the periphery of the annular interface is in sealing connection with the periphery of the bottom of the telescopic tube body, and the upper part of the mask comprises a hollow connecting tube which is opposite to and tightly matched with the mask interface of the annular interface.

The respiratory obstruction removing device has at least the following beneficial effects:

1) The respiratory obstruction removal device of the present invention is of a removable design, which is particularly prominent compared to most disposable products on the market today. This design contributes to environmental protection and is easier to maintain on a daily basis. In the conventional products, if the storage cannot be completely sealed, dust, insects and the like may intrude into the inside of the products, and the undetachable design means that the impurities cannot be effectively cleaned, which may cause dirt hidden in the inside of the device to enter the human body or block the air flow channel when in use, thereby affecting the use effect. In addition, users often try to confirm the effect of the product after purchasing the product, but this may cause hygiene problems if the device cannot be cleaned. Furthermore, the non-detachable design means that the entire product must be discarded after removal of the airway obstruction with a disposable product, which places a burden on the environment. Therefore, the product is made to be detachable by our design, so that the daily cleaning and maintenance of a user are facilitated, and the product can be reused after cleaning and disinfection after use, so that the service life and cost performance of the product are prolonged, and the influence on the environment is reduced.

2) The respiratory tract obstruction removing device optimizes the volume of the product by a detachable design, so that more products can be loaded in the same transportation space, and the number of required transportation vehicles is effectively reduced. The design greatly improves the transportation efficiency and the cost effectiveness, reduces the logistics cost, and also helps to reduce the exhaust emission because of the reduction of the number of vehicles, thereby playing a positive role in environmental protection.

3) The reduction in product volume also provides greater portability to the user. The user can more conveniently place the product in the carry-on bag or the storage box of the front seat of the automobile. The design greatly improves the frequency of carrying by the user, so that the user can immediately use the equipment to clear the airway obstruction when the suffocation accident happens, thereby realizing faster and more effective emergency rescue.

Drawings

FIG. 1 is an exploded view of a respiratory obstruction removal device according to a first embodiment of the present invention;

FIG. 2 is an exploded view of another embodiment of an airway obstruction removing device with a grip portion having an anti-slip design;

FIG. 3 is a schematic cross-sectional view of the respiratory obstruction removing device of FIG. 1;

FIG. 4 is a schematic illustration of a first check valve disposed on the inner mask/telescoping body/annular interface of a passageway extending through the annular interface and communicating the telescoping body with the mask;

FIG. 5 is a schematic diagram illustrating a flow of gas through an airway obstruction removing device according to an embodiment of the invention;

FIG. 6 is a schematic view showing the grip portion upside down in an embodiment of the present invention;

FIG. 7 is a schematic view of the transport of the respiratory obstruction removing device with the grip inverted in accordance with the present invention;

FIG. 8 is a schematic view of a third embodiment of the present invention in which a second check valve is disposed on a telescoping tube;

FIG. 9 is a schematic view of a respiratory obstruction removal device in which the port of the telescoping body adjacent the bottom of the grip portion is closed;

FIG. 10 is a schematic view of a fifth embodiment of an apparatus for removing an obstruction in the respiratory tract without a grip;

FIG. 11 is a perspective view of a respiratory obstruction removing device with a second check valve disposed on the annular interface according to an embodiment of the present invention;

Fig. 12 is a schematic view of an alternative shape telescoping tube for the respiratory obstruction removal device according to an embodiment of the present invention.

Detailed Description

In order that the invention may be understood more fully, the invention will be described with reference to the accompanying drawings. Exemplary embodiments of the invention are illustrated in the accompanying drawings. The invention may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

When the telescopic pipe is used, the holding part and the telescopic pipe body are connected into a whole to form an internal seal, and the sealing performance is improved by arranging the sealing ring at the connecting part. Because the inner diameter of the threaded interface of the telescopic pipe body is smaller than the outer diameter of the holding part, and the telescopic pipe body has an inner cavity size for accommodating the holding part in which the holding part is inverted in a normal stretching state, the telescopic pipe body is suitable for carrying and transporting. Because the outer surface of the holding part is provided with the anti-slip structure, the rescuer can not cause misoperation due to tension even in emergency.

The mask adopted in the invention is composed of an upper part, a connecting body and a lower part, wherein the upper part is matched with an annular interface in a plurality of forms, so that mask gas can flow into the telescopic pipe body through a first one-way valve penetrating through the annular interface and communicating the telescopic pipe body and a channel of the mask, and the lower part can realize comfortable and sealed contact of cheeks to form a closed mask cavity. According to one aspect of the invention, the gripping portion may be a portion in communication with the telescoping tube body or may be provided externally of the telescoping tube body, which may assist the user in stretching and compressing the telescoping tube body, ensuring that the mask connected through the annular interface may draw out obstructions in the airway by negative pressure.

The first one-way valve and the second one-way valve are respectively equivalent to an air suction one-way valve and an air outlet one-way valve, when the telescopic pipe body is controlled by the holding part to be compressed, the first one-way valve prevents air in the telescopic pipe body from flowing into the mask, the second one-way valve allows air in the telescopic pipe body to flow out of the mask, when the telescopic pipe body is stretched by the holding part, the first one-way valve allows air in the mask to flow into the telescopic pipe body, and the second one-way valve is closed to prevent the air in the telescopic pipe body from flowing out of the mask and the external air from flowing into the telescopic pipe body, so that the negative pressure environment in the telescopic pipe body is maintained. The air flow walking direction is schematically shown in fig. 5. According to one aspect of the application, the first and second one-way valves are respectively arranged on the channel penetrating the annular interface and communicating the telescopic tube body and the mask and the top end of the hollow holding part, or the second one-way valve is arranged on the negative pressure generating device at other positions except the top end of the hollow holding part, at the moment, the other end of the negative pressure generating device can be a hollow holding part or a non-hollow holding part with spiral combination or a closed plane without holding part, and the application is also effective for realizing the removal of the airway obstruction.

According to the negative pressure generating device, as the joint of the annular interface, the mask and the telescopic pipe body is provided with the uniform size, even if the mask with different shapes and sizes is required to be matched, the negative pressure generating device with the annular interface at the joint with the uniform size can be adapted only by the hollow connecting pipe with the same outer diameter of each mask, so that the shape and the size of the mask are different, the same negative pressure generating device can be adapted, the universality of the device is improved, and the cost of a supply chain is reduced. The negative pressure generating device realizes the passage of the negative pressure cavity and the mask through the annular interface, realizes the unidirectional flow of the air flow between the first one-way valve and the mask through the connection part on the annular interface, and the mask is provided with the hollow connecting pipe corresponding to the connection part on the annular interface, and simultaneously plays a role in structurally connecting the negative pressure generating device and the mask to form a whole.

When the airway obstruction removing device is used, the mask and the negative pressure generating equipment are assembled together, the flexible annular cushion of the mask surrounds the mouth of a suffocated patient and is tightly attached to the face, so that the airway of the patient is connected, then the mask is held by one hand to keep the mask and the face sealed, the holding part of the negative pressure generating equipment is held by one hand to axially and repeatedly compress and stretch the holding part, and obstruction in the airway of the patient can be rapidly removed through the formed negative pressure, in the process that the telescopic pipe body made of elastic materials and the overlapped structure is compressed (the axial size is reduced), gas in the telescopic pipe body or the air bag can be discharged to the outside from the second one-way valve and can not enter the airway of the patient through the first one-way valve, in the process that the telescopic pipe body is stretched (the axial size is enlarged), the volume of the pipe body cavity is increased, and the second one-way valve can prevent external gas from flowing into the air cavity at the moment, so that the air pressure in the air storage cavity is lower than the air pressure in the airway of the patient, and the obstruction in the airway of the patient can be removed, and the obstruction can be removed.

In conclusion, by using the cleaning device, the patient suffering from respiratory infarction and asphyxia can be rapidly and effectively rescued by repeating the simple stretching operation. Therefore, under the condition that the rescue mode of 'Haimlike' cannot be effectively implemented, the dredging device can be utilized to quickly and effectively rescue the patient with the respiratory infarction suffocation. Moreover, if the respiratory infarction choking condition occurs, the dredging device can be used for effective self-rescue under the condition that other people do not help the surrounding.

Example 1

The embodiment provides a respiratory obstruction removing device which is convenient to carry and transport. The present embodiment provides a three-dimensional combination schematic, a cross-sectional structure schematic, a principle schematic and an innovation point representation of the respiratory obstruction removing device, and reference is made to fig. 1,3, 4-7 and 12. The respiratory obstruction removing device comprises a negative pressure generating device 2 and a face mask 1, wherein the face mask 1 is used for covering the cheek of a human body, and the negative pressure generating device 2 is assembled with the face mask 1 and applies negative pressure. The negative pressure generating device 2 comprises, in order, a grip portion 21, a telescopic tube body 24 and an annular interface 25, and between the grip portion 21 and the telescopic tube body 24, a sealing ring 22 is provided. Due to the threaded connection between the grip portion 21 and the telescopic tube body 24, a sealing ring 22 between the grip portion 21 and the telescopic tube body is used for sealing the grip portion and the telescopic tube body. The negative pressure generating device 2 is connected to the mask 1 via an annular interface 25. In use, the mask 1 can be placed over a person's cheek for, on the one hand, connecting the person's mouth and nose (respiratory tract organs) and, on the other hand, the mask 1 is used to connect the negative pressure generating device 2 via the annular interface 25, by which negative pressure is applied to the mask 1 and via the mask 1 the person's respiratory tract obstruction is sucked out of the respiratory tract so as to be cleared.

As shown in fig. 1 and 3, the top end of the holding portion 21 is provided with a second one-way valve 27, the air outlet end is communicated with the outside, the air inlet end is communicated with the telescopic tube body 24, the bottom of the telescopic tube body 24 is provided with an annular interface 25 for connecting the mask 1, the first one-way valve 26 is arranged on a channel penetrating through the annular interface 25 and communicating the telescopic tube body 24 with the mask 1 (wherein the channel is a flow channel through which air flows from the mask 1 to the telescopic tube body when the telescopic tube body 24, the annular interface 25 and the mask 1 are connected), and the mask 1 is specifically arranged in the part of the mask 1 in the channel, meanwhile, the mask 1 comprises a hollow connecting pipe 121 opposite to the annular interface 25 and in tight connection, and the hollow connecting pipe 121 is inserted into the mask 1 interface of the annular interface 25 from bottom to top to realize the connection of the annular interface 25 and the mask 1. The air inlet end of the first one-way valve 26 is communicated with the mask 1, and the air outlet end is communicated with the interior of the telescopic pipe body 24, namely, the air in the mask 1 flows into the telescopic pipe body 24 through the hollow connecting pipe 121 and the first one-way valve 26. The device is used for realizing unidirectional flow of gas from the mask 1 towards the inner direction of the telescopic pipe body 24, so that when the telescopic pipe body 24 is prevented from being compressed, the gas in the pipe body of the telescopic pipe body 24 is discharged from the direction of the annular interface 25, and flows into the mask 1, meanwhile, when the telescopic pipe body 24 is compressed and then stretched again, negative pressure is generated in the telescopic pipe body 24, and the mask 1 sucks obstruction of the human respiratory tract into the telescopic pipe body 24 and discharges the obstruction through the first one-way valve 26 under the action of the negative pressure. In other embodiments, the outer surface of the holding portion 21 is provided with an anti-slip structure, so that the friction force of the holding portion 21 is enhanced, the situation that the hand is blocked from moving the telescopic tube body 24 up and down due to insufficient friction force is reduced, the convenience of the telescopic tube body 24 in up and down moving compression and stretching is improved, and accordingly the efficiency of the cleaning device for sucking the airway obstruction of a patient is improved.

The telescoping tube body 24 is made of an elastic material and has a plurality of walls that are continuously foldable so that the tube body is axially telescoping, and the cross section of such tube body can be circular, which has the advantage of more convenient processing. The telescopic tube body 24 has two states of normal extending state and compression state when being pressed in the negative pressure generating device 2, the compression extending direction of the telescopic tube body 24 is consistent with the length direction of the holding part 21, namely, the telescopic tube body 24 is stretched and compressed by holding the holding part 21, so that the pressure change is realized, and the blockage of the human respiratory tract is cleared through the mask 1. The inner space of the telescopic tube body 24 formed by the fold parts is meshed, connected and communicated with the hollow structure of the holding part 21 through the threaded joint 23, and jointly forms a variable cavity with variable volume. In a normal state, when the telescopic tube body 24 is in an extended state, the inner cavity capable of accommodating the middle part and the upper part of the holding part 21 is further formed in the tube body 24, as shown in fig. 5, specifically, the circumference of the outer edge of the holding part 21 is between 80 and 720 millimeters, the inner edge of the annular interface 25 is between 30 and 360 millimeters, after the holding part 21 and the telescopic tube body 24 are detached through threaded rotation, the holding part 21 can be placed in the inner cavity of the telescopic tube body 24 in an inverted mode, through radial size matching, the holding part 21 can not fall out from one end of the annular interface 25 of the telescopic tube body 24, stable placement of the holding part 21 in the telescopic tube body 24 is achieved, meanwhile, the volume of the airway obstruction removing device is reduced, the airway obstruction removing device is convenient to carry and transport, and during transport, the bottom of the holding part 21 becomes the top of the removing device, and therefore the holding part 21 is in a flat plane, the holding part 21 is convenient to place in an orderly mode, the removing device is stacked in an inverted mode during transport, and the volume of the airway obstruction removing device is reduced, as shown in fig. 6, the volume of the device is reduced, and the space of the device is more occupied in the same. As shown in fig. 6-7, the other end of the telescopic body 24 remote from the grip portion 21 is provided with an annular interface 25, the annular interface 25 being used to connect the telescopic body 24 and the mask 1. The mask 1 comprises an upper portion 12, a lower portion 11 and a connecting body 13, wherein the upper portion 12 is used for forming relative close connection with the annular interface 25, the lower portion 11 is a flexible annular cushion and is used for enabling the mask 1 to be fully attached to the cheek of a human body, and the connecting body 13 is used for connecting the upper portion 12 and the lower portion 11, so that the mask is convenient to produce and manufacture, and the upper portion, the lower portion and the connecting body can be integrally formed through molding.

In other embodiments, the grip portion 21 and the telescoping tube body 24 may be snap-fit, zipper, or other connection.

In order to improve the tightness of the variable cavity formed by the telescopic tube body 24 and the holding part 21, the negative pressure generating device 2 further comprises a sealing ring 22, the sealing ring 22 is in a circular ring shape and is made of a food-grade safe elastic material, the inner diameter and the outer diameter of the sealing ring 22 respectively correspond to the diameters of the end faces of the holding part 21 and the telescopic tube body 24, the thickness of the sealing ring 22 is between 0.1 millimeter and 1 millimeter, the sealing ring 22 is arranged between the threaded end face of the holding part 21 and the end face of the threaded interface 23 of the telescopic tube body 24 when in use, after the sealing ring and the sealing ring are screwed, the cavity formed by the hollow holding part 21 and the telescopic tube body 24 is sealed at the threaded connection part, so that the air tightness of the telescopic tube body 24 and the outside is ensured when the holding part 21 is held and pulled, and the air tightness of the whole cleaning device is ensured. In other embodiments (as shown in fig. 12), the cross-section of the telescoping tube body 24 may be other shapes, such as triangular, polygonal, or elliptical.

In order to adapt to different crowds, the mask 1 can be set to be in different sizes with the same outer diameter of the hollow connecting pipe 121, the annular interface 25 corresponds to the hollow connecting pipe, and can be in various sizes with the same inner diameter of the center of the annular interface 25 corresponding to the joint of the mask 1 and the telescopic pipe body 24, namely, the joint of the center of the hollow connecting pipe 121 and the annular interface 25 with the mask 1 and the telescopic pipe body 24 is uniform, and other parts of the mask 1 can be in any size, so that the mask 1 with different sizes can be replaced by the cleaning device under different practical scenes, and the condition that the cleaning device uses different masks 1 according to the face sizes of different patients can be met, thereby improving the application range of the respiratory obstruction cleaning device.

In summary, the respiratory obstruction removing device of the present embodiment includes a holding portion 21, the holding portion 21 includes a portion for holding, a top portion and a bottom portion having an opening, a telescopic tube body 24 made of an elastic material and having a volume-variable cavity formed by a hollow structure, a port connected to the bottom portion of the holding portion 21, an annular interface 25 disposed at another port of the telescopic tube body 24 away from the holding portion 21, the annular interface 25 being provided with a mask interface connected to the mask 1, the mask 1 including an upper portion 12 for relatively sealing with the annular interface 25; the airway obstruction removing device further comprises a first check valve 26 disposed on a passage penetrating the annular interface 25 and communicating the stretchable tube body 24 and the mask 1, and specifically disposed in a portion of the mask 1 in the passage (as shown in fig. 4A), an air inlet end of which communicates with the mask 1, an air outlet end of which communicates with the inside of the stretchable tube body 24, the first check valve 26 preventing the air in the stretchable tube body 24 from flowing into the mask 1 when the stretchable tube body 24 is compressed, the first check valve 26 allowing the air in the mask 1 to flow into the stretchable tube body 24 when the stretchable tube body 24 is stretched, a second check valve 27 disposed in the grip portion 21, an air outlet end of which communicates with the outside, the air inlet end of which communicates with the stretchable tube body 24, the second check valve 27 allowing the air in the stretchable tube body 24 when the stretchable tube body 24 is compressed, the second check valve 27 is closed to prevent the air flow in the telescopic tube body 24 from flowing outside and the external air flow from flowing into the telescopic tube body 24 to maintain the negative pressure environment in the telescopic tube body 24.

Example 2

This embodiment provides a portable and transportable airway obstruction removal device, as shown in figure 4. The present embodiment provides a schematic cross-sectional structure of the respiratory obstruction removing device. In the embodiment of the invention shown in fig. 4, the difference from the airway obstruction removing device in the first embodiment is that the first one-way valve 26 is arranged on the channel penetrating the annular interface 25 and communicating the telescopic tube body 24 and the mask 1, in particular on the annular interface 25 or the telescopic tube body 24 in the channel, providing various embodiments. The airway obstruction removing device of this embodiment comprises a holding part 21, wherein the holding part 21 comprises a part for holding and a top part and a bottom part with an opening, a telescopic tube body 24 made of elastic materials and provided with a volume-variable cavity formed by a hollow structure, one port is connected with the bottom part of the holding part 21, an annular interface 25 is arranged at the other port of the telescopic tube body 24 far away from the holding part 21, the annular interface 25 is provided with a mask 1 interface connected with the mask 1, the mask 1 comprises an upper part 12 for being closely contacted with the annular interface 25, a lower part 11 for closely attaching the mask 1 to a flexible annular cushion of a cheek of a human body, a connecting body 13 for connecting the upper part and the lower part, the airway obstruction removing device further comprises a first one-way valve 26 arranged on a channel penetrating the annular interface 25 and communicating the telescopic tube body 24 and the mask 1, in particular an annular interface 25 part (shown in fig. 4C) or a telescopic tube part 24B in the channel is arranged in the channel, the mask 1 is communicated with the first one-way valve 26 when the air inlet end of the mask 1 is in the mask 1, the first one-way valve 26 is communicated with the inner part 24, the second one-way valve 24 is communicated with the inner part 24 when the air inlet end of the mask 1 is in the one way, the one-way valve is communicated with the inner end 24, and the second one-way valve 24 is communicated with the inner part of the mask 1 is allowed to be in the one way valve 1, the second check valve 27 allows the air flow in the telescopic tube body 24 to flow out of the outside, and when the telescopic tube body 24 is extended, the second check valve 27 is closed to prevent the air flow in the telescopic tube body 24 from flowing out of the outside and the external air flow into the telescopic tube body 24 to maintain the negative pressure environment in the telescopic tube body 24.

Example 3

The present embodiment provides a respiratory obstruction removal device that is portable and transportable, as shown in fig. 2 and 8. The present embodiments provide a three-dimensional schematic of a respiratory obstruction removal device. In the embodiment of the present invention shown in fig. 2 and 8, the difference from the airway obstruction removing device in the first embodiment is that the second check valve 27 is disposed at other positions of the device except the top of the grip portion 21, specifically, the second check valve 27 may be disposed at the bottom of the annular interface 25 or on the telescopic tube body 24. In order to improve the use stability of the cleaning device, the outer surface of the holding part 21 is provided with an anti-slip structure, so that the friction force of the hand to the holding part 21 can be enhanced, namely, when the hand sweats, the situation that the hand drives the telescopic pipe body 24 to move up and down due to insufficient friction force can be reduced, the convenience of the telescopic pipe body 24 in up and down moving compression and stretching is improved, the efficiency of the cleaning device for sucking the airway obstruction objects of a patient is improved, and in particular, in other embodiments, the anti-slip structure can be made of anti-slip materials such as silica gel, and the friction force of the palm and the holding part 21 can be enhanced by adopting a bump and groove mode.

The airway obstruction removing device of this embodiment comprises a holding part 21, wherein the holding part 21 comprises a part for holding, a top part and a bottom part with an opening, a telescopic pipe body 24 made of elastic materials and provided with a volume-variable cavity formed by a hollow structure, one port is connected with the bottom part of the holding part 21, an annular interface 25 is arranged at the other port of the telescopic pipe body 24 far away from the holding part 21, the annular interface 25 is provided with a mask 1 interface connected with the mask 1, and the mask 1 comprises an upper part 12 for being in relatively close contact with the annular interface 25; the airway obstruction removing device further comprises a first check valve 26 disposed on a passage penetrating the annular interface 25 and communicating the stretchable tube body 24 and the mask 1, an air inlet end of which communicates with the mask 1, an air outlet end of which communicates with the inside of the stretchable tube body 24, the first check valve 26 preventing air in the stretchable tube body 24 from flowing into the mask 1 when the stretchable tube body 24 is compressed, the first check valve 26 allowing air in the mask 1 to flow into the stretchable tube body 24 when the stretchable tube body 24 is extended, a second check valve 27 disposed on at least one of the stretchable tube body 24 or the annular interface 25, an air outlet end of which communicates with the outside, the air inlet end of which communicates with the stretchable tube body 24, the second check valve 27 allowing air in the stretchable tube body 24 to flow out when the stretchable tube body 24 is compressed, the air outlet of which allows the outside of the stretchable tube body 24 when the stretchable tube body 24 is extended, the second check valve 27 is closed to prevent the air flow in the telescopic tube body 24 from flowing outside and the external air flow from flowing into the telescopic tube body 24 to maintain the negative pressure environment in the telescopic tube body 24. When the second check valve 27 is not arranged at the top, the situation that the second check valve 27 is blocked by the palm by mistake when the palm grips the holding part 21 to compress the telescopic pipe body 24 when the second check valve 27 is arranged at the top can be reduced, so that the use efficiency of the cleaning device is improved.

Example 4

This embodiment provides a portable and transportable airway obstruction removal device, as shown in figure 9. The present embodiments provide a three-dimensional schematic of a respiratory obstruction removal device. In the embodiment of the present invention shown in fig. 9, the difference from the airway obstruction removing device in the first embodiment is that the port of the telescopic tube body 24 adjacent to the bottom of the holding portion 21 is closed, the telescopic tube body 24 and the holding portion 21 are rotatably engaged and connected by a threaded interface, wherein the holding portion 21 may be hollow or non-hollow. The airway obstruction removing device of the present embodiment comprises a holding part 21, wherein the holding part 21 comprises a part for holding, a top part and a bottom part with an opening, a telescopic tube body 24 made of elastic materials and provided with a volume-variable cavity formed by a hollow structure, one port is connected with the bottom part of the holding part 21, an annular interface 25 is arranged at the other port of the telescopic tube body 24 far away from the holding part 21, the annular interface 25 is provided with a mask interface connected with the mask 1, and the mask 1 comprises an upper part 12 for being in relatively close contact with the annular interface 25; the airway obstruction removing device further comprises a first check valve 26 provided on a passage penetrating the annular interface 25 and communicating the telescopic tube body 24 and the mask 1, an air inlet end of which communicates with the mask 1, an air outlet end of which communicates with the inside of the telescopic tube body 24, a first check valve 26 for blocking the air in the telescopic tube body 24 from flowing into the mask 1 when the telescopic tube body 24 is compressed, the first check valve 26 allowing the air in the mask 1 to flow into the telescopic tube body 24 when the telescopic tube body 24 is extended, a second check valve 27 provided on the telescopic tube body 24 or the annular interface 25, an air outlet end of which communicates with the telescopic tube body 24, the second check valve 27 allowing the air flow out of the telescopic tube body 24 when the telescopic tube body 24 is compressed, the second check valve 27 allowing the air flow out of the telescopic tube body 24 when the telescopic tube body 24 is extended, the second check valve 27 is closed to prevent the air flow in the telescopic tube body 24 from flowing outside and the external air flow from flowing into the telescopic tube body 24 to maintain the negative pressure environment in the telescopic tube body 24.

Example 5

This embodiment provides a portable and transportable airway obstruction removal device, as shown in figure 10. The present embodiments provide a three-dimensional schematic of a respiratory obstruction removal device. In the embodiment of the present invention shown in fig. 10, the difference from the airway obstruction removing device in the first embodiment is that the negative pressure generating apparatus 2 does not adopt the structure of the grip portion 21, only includes the telescopic tube body 24 and the annular interface 25, the top of the seal of the telescopic tube body 24 is provided with a handle in the form of a hanging rope, a detachable handle, a buckle, two side handles or other handle forms convenient for application of force, so as to be grasped by a hand to realize the switching of the compression and stretching states of the telescopic tube body 24 by a user, thereby realizing the space volume in the telescopic tube body 24 to be variable, and the negative pressure generating apparatus 2 is provided with the second one-way valve 27. The airway obstruction removing device of the embodiment comprises a telescopic tube body 24, an annular connector 25, an upper part 12, a lower part 11, a flexible annular cushion, a connecting body 13, a first one-way valve 26, a second one-way valve 27, a negative pressure one-way valve and a negative pressure one-way valve, wherein the flexible annular cushion is used for tightly fitting the upper part 12 and the lower part 11 of the human cheek, the connecting body is used for connecting the upper part 12 and the lower part 11, the airway obstruction removing device further comprises a first one-way valve 26, the first one-way valve is arranged on a channel which penetrates through the annular connector 25 and is communicated with the telescopic tube body 24 and the mask 1, the air inlet end of the first one-way valve is communicated with the interior of the telescopic tube body 24, the first one-way valve 26 prevents air in the telescopic tube body 24 from flowing into the mask 1 when the telescopic tube body 24 is compressed, the first one-way valve 26 is used for preventing air in the telescopic tube body 24 from flowing out of the mask 1, the second one-way valve 27 is arranged on the exterior of the telescopic tube 24 when the telescopic tube body 24 is tightly fitted with the cheek, the second one-way valve 27 is used for allowing air flow out of the telescopic tube 24 when the telescopic tube body 24 is connected with the exterior of the mask 24, and the second one-way valve 27 is arranged on the exterior of the telescopic tube 24 and the air outlet end of the telescopic tube is communicated with the mask 1, and the air inlet end of the air outlet end of the telescopic tube is allowed to flow out of the telescopic tube 24 is kept in a negative pressure one-way valve.

In other embodiments, the handle may also be provided as a handle tab, etc., and the handle may simplify the structure of the holding portion 21 in the first embodiment, because the top of the telescopic tube body 24 is a flat plane, the cleaning devices are convenient to stack in order during transportation, the space occupation of the cleaning devices is reduced, and the cleaning devices with more transportation numbers are convenient to carry in the same transportation space, and meanwhile, the production process and the manufacturing cost may be simplified.

Example 6

This embodiment provides a portable and transportable airway obstruction removal device, as shown in figure 11. The present embodiments provide a three-dimensional combined schematic of a respiratory obstruction removal device. In the embodiment of the present invention shown in fig. 11, the difference from the airway obstruction removing device in the first embodiment is that the holding portion 21 and the telescopic tube body 24 are not movably connected and are not detachable. The airway obstruction removing device of the embodiment comprises a holding part 21 and a telescopic pipe body 24, wherein the holding part 21 is in non-movable connection with the telescopic pipe body 24, the telescopic pipe body 24 is made of elastic materials and is provided with a volume-variable cavity formed by a hollow structure, one port is connected with the bottom of the holding part 21, an annular interface 25 is arranged at the other port of the telescopic pipe body 24 far away from the holding part 21, the annular interface 25 is provided with a mask interface connected with the mask 1, and the mask 1 comprises an upper part 12 and a lower part, wherein the upper part is used for being closely connected with the annular interface 25; the airway obstruction removing device further comprises a first check valve 26 disposed on a passage penetrating the annular interface 25 and communicating the telescopic tube body 24 and the mask 1, an air inlet end of which communicates with the mask 1 and an air outlet end of which communicates with the inside of the telescopic tube body 24, a connection body 13 for connecting the upper portion 12 and the lower portion 11, the connection body 13 for closely fitting a flexible annular cushion of a cheek of a human body, the first check valve 26 preventing air in the telescopic tube body 24 from flowing into the mask 1 when the telescopic tube body 24 is compressed, the first check valve 26 allowing air in the mask 1 to flow into the telescopic tube body 24 when the telescopic tube body 24 is extended, a second check valve 27 disposed on the grip portion 21, an air outlet end of which communicates with the telescopic tube body 24, the second check valve 27 allowing air flow in the telescopic tube body 24 to flow out of the outside when the telescopic tube body 24 is compressed, when the telescopic tube body 24 is extended, the second check valve 27 is closed to prevent the air flow in the telescopic tube body 24 from flowing outside and the external air flow from flowing into the telescopic tube body 24 to maintain the negative pressure environment in the telescopic tube body 24.

In addition, the technical features of the above embodiments may be combined as needed to obtain a respiratory obstruction removal device including all or part of the technical features described above.

The embodiments of the invention have been described above with reference to the accompanying drawings, but the invention is not limited to the embodiments described above, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the invention and the scope of the claims, which fall within the protection of the invention.

Claims

1. A respiratory obstruction removing device comprises a mask, a negative pressure generating device which acts on the mask by negative pressure, and is characterized in that,

The negative pressure generating apparatus includes:

The mask comprises an upper part, a lower part and a connecting body, wherein the upper part is used for being closely connected with the annular interface, the lower part is used for being closely attached to a flexible annular cushion of a cheek of a human body, and the connecting body is used for connecting the upper part and the lower part;

The respiratory obstruction removing device further comprises a first one-way valve, a second one-way valve and a third one-way valve, wherein the first one-way valve is arranged on a channel penetrating through the annular interface and communicating the telescopic pipe body and the mask, the air inlet end of the first one-way valve is communicated with the mask, the air outlet end of the first one-way valve is communicated with the interior of the telescopic pipe body, when the telescopic pipe body is compressed, the first one-way valve prevents gas in the telescopic pipe body from flowing into the mask, and when the telescopic pipe body is stretched, the first one-way valve allows the gas in the mask to flow into the telescopic pipe body;

2. The respiratory obstruction removal device according to claim 1, wherein the negative pressure generating apparatus further comprises a threaded interface disposed at an end of the telescoping tube body adjacent the bottom of the grip for threadably engaging threads of the bottom of the grip.

3. The respiratory obstruction removal device according to claim 2, wherein the threaded interface has an inner diameter that is smaller than an outer diameter of the grip portion, the telescoping tube body having a lumen size in a normally extended state that accommodates inversion of the grip portion therein.

4. The respiratory obstruction removal device according to claim 1, wherein a perimeter of the annular interface is sealingly connected to a perimeter of the telescoping tube body distal to the grip port, and an upper portion of the mask includes a hollow connection tube opposing and in close engagement with the mask interface of the annular interface.

5. The respiratory obstruction removal device according to claim 4, wherein the negative pressure generating device comprises an annular interface having a uniform interface of the mask for mating with any one of the masks of the hollow connecting tubes of a plurality of sizes and having the same outer diameter.

6. The respiratory obstruction removal device according to claim 2, wherein the negative pressure generating apparatus further comprises a sealing ring for encapsulation between the grip bottom and the threaded interface of the telescoping tube body.

7. A respiratory obstruction removal device according to claim 3, wherein the grip material has a coefficient of elasticity that is less than the coefficient of elasticity of the telescoping tube body material.

8. The respiratory obstruction removal device of claim 3, wherein an outer surface of said grip portion has an anti-slip structure.

9. A respiratory obstruction removing device comprises a mask and negative pressure generating equipment which is communicated with the mask and acts with negative pressure, and is characterized in that,

The negative pressure generating apparatus includes:

The respiratory obstruction removing device further comprises a first one-way valve arranged on a channel penetrating the annular interface and communicating the telescopic pipe body and the mask, wherein the air outlet end of the first one-way valve is communicated with the interior of the telescopic pipe body, and the air inlet end of the first one-way valve is communicated with the mask;

The second one-way valve is arranged on the telescopic pipe body, the air outlet end of the second one-way valve is communicated with the outside, and the air inlet end of the second one-way valve is communicated with the telescopic pipe body; the first check valve closes to prevent gas flow from the telescoping tube body into the mask when the telescoping tube body is compressed, and the second check valve allows gas flow from the telescoping tube body out of the mask when the telescoping tube body is extended, and the second check valve closes to prevent gas flow from the telescoping tube body out of the mask and external gas flow into the telescoping tube body to maintain a negative pressure environment within the telescoping tube body.

10. The respiratory obstruction removal device according to claim 9, wherein the negative pressure generating apparatus further comprises a threaded interface disposed at an end of the telescoping tube body adjacent the bottom of the grip portion for threadably engaging threads of the bottom of the grip portion.

11. The respiratory obstruction removal device of claim 9, wherein a port of said telescoping tube body adjacent to a connection at a bottom of said grip is closed.

12. The respiratory obstruction removal device according to claim 10, wherein the threaded interface has an inner diameter that is smaller than an outer diameter of the grip portion, the telescoping tube body having an inner cavity in which the grip portion is inverted in a normally extended state.

13. The respiratory obstruction removal device according to claim 9, wherein a perimeter of the annular interface is sealingly connected to a perimeter of the telescoping tube body distal to the grip port, and an upper portion of the mask includes a hollow connection tube opposing and in close engagement with the mask interface of the annular interface.

14. The respiratory obstruction removal device according to claim 10, wherein the negative pressure generating apparatus further comprises a sealing ring for encapsulation between the grip bottom and the threaded interface of the telescoping tube body.

15. The respiratory obstruction removal device of claim 11, wherein an outer surface of said grip portion has an anti-slip structure.

16. A respiratory obstruction removing device comprises a mask for covering cheeks and a negative pressure generating device for applying negative pressure to the mask,

The negative pressure generating apparatus includes:

17. The respiratory obstruction removal device according to claim 15, wherein the telescoping tube body is constructed and arranged to provide an axial spring rate that is substantially greater than the spring rates in the other directions.

18. The respiratory obstruction removal device according to claim 16, wherein a handle or handle catch is provided on top of the telescoping tube body, the handle or handle catch having a substantially smaller elasticity than the axial elasticity of the telescoping tube body.

19. The respiratory obstruction removal device according to claim 15, wherein a perimeter of the annular interface is sealingly connected to a perimeter of the bottom of the telescoping tube body, and an upper portion of the mask includes a hollow connection tube opposite and in close proximity to the mask interface of the annular interface.

20. The respiratory obstruction removal device according to claim 17, wherein the negative pressure generating device comprises an annular interface having a uniform interface of the mask for mating with any one of the masks of the hollow connecting tubes of a plurality of sizes and having the same outer diameter.

21. A respiratory obstruction removing device comprises a mask and negative pressure generating equipment which acts on the mask by negative pressure, and is characterized in that,

The negative pressure generating apparatus includes:

The device comprises a mask, a negative pressure generating device, a first check valve, a second check valve, a first check valve and a second check valve, wherein the air outlet end of the first check valve is communicated with the outside, the air inlet end of the first check valve is communicated with the telescopic pipe body, the first check valve is closed to prevent air in the telescopic pipe body from flowing into the mask when the telescopic pipe body is compressed, the second check valve allows air in the telescopic pipe body to flow out of the mask when the telescopic pipe body is stretched, the first check valve is communicated to allow air in the mask to flow into the telescopic pipe body when the telescopic pipe body is stretched, the second check valve is closed to prevent air in the telescopic pipe body from flowing out of the mask, and the first check valve and the second check valve are arranged on the negative pressure generating device in a reverse mode.

22. The respiratory obstruction removal device according to claim 21, wherein a pull cord or handle is provided on top of the telescoping tube body.

23. The respiratory obstruction removal device according to claim 21, wherein a perimeter of the annular interface is sealingly connected to a perimeter of a bottom portion of the telescoping tube body, and an upper portion of the mask includes a hollow connection tube opposing and in close proximity to the mask interface of the annular interface.

24. The respiratory obstruction removal device according to claim 21, wherein the negative pressure generating device comprises an annular interface having a uniform interface of the mask for mating with any one of the masks of the hollow connecting tubes of a plurality of sizes and having the same outer diameter.