Respiratory tract obstruction removing device

Abstract

A respiratory tract obstruction removing device comprises a mask and a negative pressure generating device. The negative pressure generating device comprises a holding part, a telescopic pipe body and an annular connector which are sequentially connected, the telescopic pipe body is provided with a variable cavity with the variable volume, and the mask comprises an upper portion opposite to the annular connector, a lower portion opposite to the cheek of the human body and a connecting body used for connecting the upper portion and the lower portion. The respiratory tract obstruction removing device further comprises a first one-way valve which is arranged on the annular connector and used for being communicated with a mask and sucking gas into the telescopic pipe body in a one-way mode, and a second one-way valve which is used for discharging the gas from the interior of the telescopic pipe body to the outside in a one-way mode. The mask gas is continuously sucked out and discharged to the outside to remove obstructions in the respiratory tract, the size of the removing device is reduced through the movable connection and inverted design of the holding part and the telescopic pipe body, carrying and transportation are more convenient, and emergency use in different scenes is supported.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a respiratory tract obstruction clearing device. Background Art

[0002] There are many reasons that may cause blockage in the airway. If emergency treatment is not given within 4-6 minutes, the resulting suffocation may have a series of serious consequences. Hypoxia may quickly progress to loss of consciousness or even cardiac arrest, and in extreme cases may lead to death. Oxygen is a key element to maintain the normal functioning of the brain. Hypoxia can lead to insufficient blood supply to the brain, resulting in nerve cell death and cerebral ischemia, which may further lead to permanent brain damage. Even if the suffocated patient survives after timely rescue, cognitive dysfunction, movement disorders and other neurological problems may occur due to brain damage. Moreover, these problems may last a lifetime and seriously affect the quality of life. In addition, the impact of hypoxia and suffocation on heart function cannot be ignored. Hypoxia may directly affect the heart, causing arrhythmia, myocardial damage and other heart problems. These problems may further aggravate the health of the suffocated person and increase the risk of complications. Especially for people with weak heart function, such as the elderly and patients with chronic diseases, suffocation events may put more pressure on their already fragile hearts and may even cause heart attacks or cardiac arrest.

[0003] As choking incidents may occur anywhere and at any time, including isolated environments, densely populated areas, or on vehicles. In these cases, due to the lack of effective airway obstruction clearance devices or first aid measures, emergency assistance may not be provided in time, further increasing the risk of choking. For example, in outdoor activities, sports, swimming, food choking and other incidents, due to the lack of first aid equipment or the inability to immediately go to the hospital, these situations often lead to choking incidents. Even at home, if there is no timely airway obstruction clearance device or first aid measures, choking incidents may occur.

[0004] At present, the first aid for patients with airway obstruction usually adopts the "Heimlich maneuver". However, the Heimlich maneuver requires the rescuer to apply sufficient force and correct position, otherwise it may result in poor results or injury to the patient. In addition, there are certain risks and potential complications, such as sternal fractures, internal injuries or pain. This is especially likely to occur under incorrect operation. Therefore, the Heimlich maneuver is not suitable for all causes of suffocation. For patients with certain diseases, abnormal bone structure or other special conditions, other first aid methods may be required. Based on the importance of timely resolving airway obstruction to the life and health of suffocating patients, there is a need for an efficient, portable, and easy-to-operate tool that can provide the necessary tools for emergency rescue, which can be used to quickly remove obstructions in suffocation emergencies and minimize potential complications and life risks.

[0005] Although, there are already some airway obstruction removal devices, such as airway suction devices, which suck and clear airway obstructions by generating negative pressure or vacuum. Generally, airway suction devices include a mask or a tube connected to a suction device, such as a manual pump or an electric suction machine. By using negative pressure or vacuum, airway suction devices can help to extract obstructions from the airways of choking patients. Portable airway suction devices usually design the suction device and the mask as a whole. The rescuer places the whole device on the face of the choking patient, operates the device on the face of the choking patient, and generates a pressure difference to clear the obstruction.

[0006] However, existing airway obstruction clearing devices have several limitations.

[0007] First, the existing portable airway aspirators are large in overall size, especially in axial dimension, because the negative pressure generating part is an integrated structure, and cannot be disassembled. As a disposable product, it is not conducive to environmental protection. Secondly, some airway obstruction removal devices may have some unnecessary risks and complications. If improperly designed or operated, further airway damage may occur, such as irritation or scratching of the throat, and even airway perforation. Thirdly, other devices may generate excessive negative pressure or vacuum, which may cause pneumothorax or lung damage.

[0008] Therefore, a new type of airway obstruction removal device is needed to overcome the limitations of existing devices and provide a more efficient, portable and easy-to-operate solution. This new device should be designed to be as simple as possible so that rescuers can quickly understand and operate it in an emergency. In addition, the device should be designed to be small enough to be easily carried and stored. Utility Model Content

[0009] The objective of the utility model is to provide a novel respiratory obstruction clearing device which is smaller in size, easier to transport and carry, and more convenient to use, thereby overcoming the limitations of similar products in the prior art, and providing a more effective and more widely applicable scenario and space than the prior art, and a more feasible treatment method for coping with suffocation emergencies caused by respiratory obstruction.

[0010] A respiratory obstruction clearing device comprises a mask, a negative pressure generating device for applying negative pressure to the mask;

[0011] The negative pressure generating device comprises:

[0012] A grip portion, comprising a portion for hand-holding and a top portion and a bottom portion having an open mouth;

[0013] A retractable tube body, made of elastic material, having a volume-variable cavity formed by a hollow structure, and one end connected to the bottom of the grip portion;

[0014] An annular interface, provided at another end of the telescopic tube body away from the gripping portion, the annular interface being provided with a mask interface connected to the mask;

[0015] The mask comprises:

[0016] The upper part is used to be in close contact with the annular interface; the lower part includes a flexible annular pad for the mask to fit the human cheek closely; the connector is used to connect the upper part and the lower part;

[0017] The airway obstruction removal device further comprises:

[0018] a first one-way valve, arranged on a passage penetrating the annular interface and connecting the telescopic tube body and the mask, with an air inlet end communicating with the mask and an air outlet end communicating with the interior of the telescopic tube body; when the telescopic tube body is compressed, the first one-way valve prevents the gas in the telescopic tube body from flowing into the mask; when the telescopic tube body is extended, the first one-way valve allows the gas in the mask to flow into the telescopic tube body; specifically, the first one-way valve may be arranged on any component of the mask, the telescopic tube body and the annular interface in the passage;

[0019] A second one-way valve is arranged on the holding part, with an air outlet end communicating with the outside and an air inlet end communicating with the telescopic tube body. When the telescopic tube body is compressed, the second one-way valve allows the airflow in the telescopic tube body to flow out to the outside; when the telescopic tube body is extended, the second one-way valve is closed to prevent the airflow in the telescopic tube body from flowing out to the outside and the external airflow from flowing into the telescopic tube body, so as to maintain a negative pressure environment inside the telescopic tube body.

[0020] In one of the embodiments, the negative pressure generating device further comprises a threaded interface, which is disposed at one end of the telescopic tube body adjacent to the bottom of the gripping portion, and is used for threadably engaging with the thread at the bottom of the gripping portion.

[0021] In one embodiment, the negative pressure generating device further comprises a threaded interface, the inner diameter of the threaded interface is smaller than the outer diameter of the gripping portion, and the retractable tube body has an inner cavity size capable of accommodating the gripping portion inverted therein in a normally extended state.

[0022] In one embodiment, the periphery of the annular interface is sealedly connected to the periphery of the telescopic tube away from the port of the grip portion, and the upper portion of the mask includes a hollow connecting tube that is opposite to and tightly fitted with the mask interface of the annular interface.

[0023] In one embodiment, the negative pressure generating device includes an annular interface with a unified mask interface for fitting any of the masks having hollow connecting tubes of multiple sizes and the same outer diameter.

[0024] In one of the embodiments, the negative pressure generating device further includes a sealing ring for sealing between the bottom of the grip portion and the threaded interface of the telescopic tube.

[0025] In one embodiment, the elastic coefficient of the material of the gripping portion is smaller than the elastic coefficient of the material of the telescopic tube.

[0026] In one embodiment, the outer surface of the grip portion has an anti-slip structure.

[0027] The utility model also discloses a respiratory obstruction clearing device according to an embodiment of the present application, comprising a mask and a negative pressure generating device communicating with the mask and acting with negative pressure;

[0028] The negative pressure generating device comprises:

[0029] A grip portion, including a portion for holding the hand and a top and bottom portion;

[0030] A retractable tube body, made of elastic material, having a volume-variable cavity formed by a hollow structure, and one end connected to the bottom of the grip portion;

[0031] An annular interface, provided at another end of the telescopic tube body away from the gripping portion, the annular interface being provided with a mask interface connected to the mask;

[0032] The upper part is used to be in close contact with the annular interface; the lower part includes a flexible annular pad for the mask to fit the human cheek closely; a connector is used to connect the upper part and the lower part;

[0033] The airway obstruction removal device further comprises:

[0034] A first one-way valve is arranged on a channel that runs through the annular interface and connects the telescopic tube body and the mask, and the air outlet end of the first one-way valve is communicated with the inside of the telescopic tube body, and the air inlet end is communicated with the mask. Specifically, the first one-way valve can be arranged on any component of the mask, the telescopic tube body and the annular interface in the channel;

[0035] A second one-way valve is arranged on the telescopic tube body, and the air outlet end of the second one-way valve is communicated with the outside, and the air inlet end is communicated with the inside of the telescopic tube body; when the telescopic tube body is compressed, the first one-way valve is closed to prevent the gas in the telescopic tube body from flowing into the mask, and the second one-way valve allows the airflow in the telescopic tube body to flow out to the outside; when the telescopic tube body is extended, the first one-way valve is opened to allow the gas in the mask to flow into the telescopic tube body; the second one-way valve is closed to prevent the airflow in the telescopic tube body from flowing out to the outside and the external airflow from flowing into the telescopic tube body, so as to maintain a negative pressure environment in the telescopic tube body.

[0036] In one of the embodiments, the negative pressure generating device further comprises a threaded interface, which is disposed at one end of the telescopic tube body adjacent to the bottom of the gripping portion, and is used for threadably engaging with the thread at the bottom of the gripping portion.

[0037] In one embodiment, the connection port of the telescopic tube adjacent to the bottom of the grip portion is closed.

[0038] In one embodiment, the inner diameter of the threaded interface is smaller than the outer diameter of the gripping portion, and the telescopic tube body has an inner cavity for accommodating the gripping portion inverted therein in a normally extended state.

[0039] In one embodiment, the periphery of the annular interface is sealedly connected to the periphery of the telescopic tube away from the port of the grip portion, and the upper portion of the mask includes a hollow connecting tube that is opposite to and tightly fitted with the mask interface of the annular interface.

[0040] In one of the embodiments, the negative pressure generating device further includes a sealing ring for sealing between the bottom of the grip portion and the threaded interface of the telescopic tube.

[0041] In one embodiment, the outer surface of the grip portion has an anti-slip structure.

[0042] The utility model also discloses a respiratory obstruction clearing device provided in an embodiment of the present application, comprising a mask for covering the cheek and a negative pressure generating device for acting on the mask with negative pressure;

[0043] The negative pressure generating device comprises:

[0044] The telescopic tube is made of elastic material and includes a volume-variable cavity having a hollow structure at the top, bottom and middle;

[0045] An annular interface, arranged at the bottom of the telescopic tube, the annular interface being provided with a mask interface connected to the mask;

[0046] The mask comprises:

[0047] The upper part is used to be in close contact with the annular interface; the lower part includes a flexible annular pad for the mask to fit the human cheek closely; the connector is used to connect the upper part and the lower part;

[0048] The airway obstruction removal device further comprises:

[0049] a first one-way valve, arranged on a passage penetrating the annular interface and connecting the telescopic tube body and the mask, with an air inlet end communicating with the mask and an air outlet end communicating with the interior of the telescopic tube body; when the telescopic tube body is compressed, the first one-way valve prevents the gas in the telescopic tube body from flowing into the mask; when the telescopic tube body is extended, the first one-way valve allows the gas in the mask to flow into the telescopic tube body; specifically, the first one-way valve may be arranged on any component of the mask, the telescopic tube body and the annular interface in the passage;

[0050] A second one-way valve is arranged on at least one of the telescopic tube body or the annular interface, with an air outlet end communicating with the outside and an air inlet end communicating with the telescopic tube body. When the telescopic tube body is compressed, the second one-way valve allows the airflow in the telescopic tube body to flow out to the outside; when the telescopic tube body is extended, the second one-way valve is closed to prevent the airflow in the telescopic tube body from flowing out to the outside and the external airflow from flowing into the telescopic tube body, so as to maintain a negative pressure environment in the telescopic tube body.

[0051] The material and structure of the telescopic tube ensure that its axial elastic coefficient is much greater than the elastic coefficients in other directions.

[0052] In one of the embodiments, a handle or a handle buckle is provided on the top of the telescopic tube, and the elasticity of the handle or the handle buckle is much smaller than the axial elasticity of the telescopic tube.

[0053] In one of the embodiments, the periphery of the annular interface is sealingly connected to the periphery of the bottom of the telescopic tube, and the upper part of the mask includes a hollow connecting tube that is opposite to and tightly fitted with the mask interface of the annular interface.

[0054] In one embodiment, the negative pressure generating device includes an annular interface with a unified mask interface for fitting any of the masks having hollow connecting tubes of multiple sizes and the same outer diameter.

[0055] The utility model also discloses a respiratory obstruction clearing device provided according to an embodiment of the present application, comprising a mask and a negative pressure generating device for acting on the mask with negative pressure;

[0056] The negative pressure generating device comprises:

[0057] The telescopic tube is made of elastic material and includes a volume-variable cavity having a hollow structure at the top, bottom and middle;

[0058] An annular interface, arranged at the bottom of the telescopic tube, the annular interface being provided with a mask interface connected to the mask;

[0059] The mask comprises:

[0060] The upper part is used to be in close contact with the annular interface; the lower part includes the lower part of the flexible annular pad used for the mask to fit the human cheek closely; the connector is used to connect the upper part and the lower part;

[0061] The airway obstruction removal device further comprises:

[0062] The first one-way valve is arranged on the channel that runs through the annular interface and connects the telescopic tube body and the mask. The air outlet end of the first one-way valve is communicated with the inside of the telescopic tube body, and the air inlet end is communicated with the mask. Specifically, the first one-way valve can be arranged on any component of the mask, the telescopic tube body and the annular interface in the channel.

[0063] A second one-way valve, wherein the air outlet end of the second one-way valve is communicated with the outside, and the air inlet end is communicated with the inside of the telescopic tube; when the telescopic tube is compressed, the first one-way valve is closed to prevent the gas in the telescopic tube from flowing into the mask, and the second one-way valve allows the airflow in the telescopic tube to flow out of the outside; when the telescopic tube is extended, the first one-way valve is connected to allow the gas in the mask to flow into the telescopic tube; the second one-way valve is closed to prevent the airflow in the telescopic tube from flowing out of the outside; wherein the first one-way valve and the second one-way valve are arranged on the negative pressure generating device in opposite directions to each other.

[0064] In one of the embodiments, the respiratory obstruction clearing device is characterized in that a pull rope or a handle is provided on the top of the retractable tube.

[0065] In one embodiment, the respiratory obstruction clearing device is characterized in that the periphery of the annular interface is sealedly connected to the periphery of the bottom of the telescopic tube body, and the upper part of the mask includes a hollow connecting tube that is opposite to and tightly fitted with the mask interface of the annular interface.

[0066] In one embodiment, the negative pressure generating device includes an annular interface with a unified mask interface for fitting any of the masks having hollow connecting tubes of multiple sizes and the same outer diameter.

[0067] The respiratory obstruction removal device of the utility model has at least the following beneficial effects:

[0068] 1) The respiratory obstruction removal device of the utility model is detachable, which is particularly prominent compared to most disposable products on the current market. This design is environmentally friendly and easier to maintain on a daily basis. In traditional products, if the storage cannot be completely sealed, dust and insects may invade the interior of the product, and the non-detachable design means that these impurities cannot be effectively cleaned, which may cause the dirt hidden inside the device to enter the human body during use, or block the airflow channel, thereby affecting the use effect. In addition, users usually try the product after purchasing it to confirm the effect of the product, but if the device cannot be cleaned, this may cause hygiene problems. In addition, after using a disposable product to remove respiratory obstruction, the non-detachable design means that the entire product must be discarded, which imposes a burden on environmental protection. Therefore, our design makes the product detachable to facilitate users to carry out daily cleaning and maintenance, and it can also be cleaned and disinfected after use and reused, thereby improving the service life and cost-effectiveness of the product while reducing the impact on the environment.

[0069] 2) The respiratory obstruction removal device of the utility model optimizes the product volume with a detachable design, so that more products can be loaded in the same transportation space, effectively reducing the number of transportation vehicles required. This design greatly improves transportation efficiency and cost-effectiveness, not only reducing logistics costs, but also reducing the number of vehicles, helping to reduce exhaust emissions and playing a positive role in environmental protection.

[0070] 3) The reduction in product size also provides users with greater portability. Users can more conveniently place the product in a carry-on bag or in the storage box of the front seat of a car. This design greatly increases the frequency of users carrying the product with them, so that when suffocation occurs, users can immediately use the device to clear airway obstruction, thereby achieving faster and more effective emergency rescue. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] Figure 1This is an exploded schematic diagram of a respiratory obstruction removal device in Embodiment 1 of the present utility model;

[0072] Figure 2 It is a schematic diagram of another perspective of an exploded view of a respiratory obstruction removal device having a gripping portion with an anti-slip design in another embodiment of the present invention;

[0073] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure of a device for clearing obstructions in the middle respiratory tract;

[0074] Figure 4 This is a schematic diagram of a first one-way valve being arranged on the mask / retractable tube / retractable tube in a channel that passes through the annular interface and connects the retractable tube and the mask;

[0075] Figure 5 This is a schematic diagram of the gas flow direction of a respiratory obstruction removal device in the first embodiment of the utility model;

[0076] Figure 6 It is a schematic diagram of an inverted gripping portion in an embodiment of the utility model;

[0077] Figure 7 It is a schematic diagram of transporting the respiratory obstruction clearing device when the gripping portion is inverted in the embodiment of the utility model;

[0078] Figure 8 This is a schematic diagram of a second one-way valve in Embodiment 3 of the present utility model being arranged on a telescopic tube body;

[0079] Fig. 9 It is a schematic diagram of a respiratory obstruction clearing device in a fourth embodiment of the present invention, in which the port of the telescopic tube adjacent to the bottom of the gripping portion is closed;

[0080] Fig.10 Schematic diagram of different forms of the respiratory obstruction removal device without a gripping portion in Embodiment 5 of the present invention;

[0081] Fig.11 It is a three-dimensional assembly schematic diagram of a respiratory obstruction clearing device in which the second one-way valve is arranged on the annular interface in an embodiment of the utility model;

[0082] Fig.12 This is a schematic diagram of a respiratory obstruction clearing device in an embodiment of the present invention using a retractable tube body of other shapes. DETAILED DESCRIPTION

[0083] In order to facilitate the understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings. Typical embodiments of the utility model are given in the drawings. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0084] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the utility model. The terms used in the utility model specification herein are only for the purpose of describing specific embodiments and are not intended to limit the utility model.

[0085] When the utility model is used, the gripping part and the telescopic tube body are connected as one body to form an internal seal, and a sealing ring is arranged at the connection to enhance its sealing performance. Since the inner diameter of the threaded interface of the telescopic tube body is smaller than the outer diameter of the gripping part, and the telescopic tube body has an inner cavity size that can accommodate the gripping part inverted therein in the normal extended state, the volume at this time is suitable for carrying and transportation. Since the outer surface of the gripping part has an anti-slip structure, even in an emergency, the rescuer will not make an operation error due to nervousness.

[0086] The mask used in the utility model is composed of an upper part, a connector and a lower part. The upper part can be in various forms with the annular interface to ensure that the mask gas can flow into the telescopic tube through the first one-way valve on the channel that runs through the annular interface and connects the telescopic tube and the mask. The lower part can achieve comfortable and sealed contact with the cheek to form a closed mask cavity. According to one aspect of the utility model, the gripping part can be a part that communicates with the telescopic tube or a setting outside the telescopic tube, both of which can help the user stretch and compress the telescopic tube to ensure that the mask connected through the annular interface can suck out obstructions in the respiratory tract through negative pressure.

[0087] The first one-way valve and the second one-way valve in the utility model are equivalent to the inhalation one-way valve and the exhaust one-way valve respectively. When the retractable tube body is compressed by the holding part, the first one-way valve prevents the gas in the retractable tube body from flowing into the mask, and the second one-way valve allows the airflow in the retractable tube body to flow out to the outside; when the retractable tube body is extended by the holding part, the first one-way valve allows the gas in the mask to flow into the retractable tube body; and the second one-way valve is closed to prevent the airflow in the retractable tube body from flowing out to the outside and the external airflow from flowing into the retractable tube body, so as to maintain the negative pressure environment in the retractable tube body. See the schematic diagram of the airflow direction for details. Figure 5According to one aspect of the present application, the first and second one-way valves are respectively arranged on the channel that runs through the annular interface and connects the telescopic tube and the mask and on the top of the hollow gripping portion, or the second one-way valve is placed on the negative pressure generating device at a position other than the top of the hollow gripping portion. In this case, the other end of the negative pressure generating device can be a hollow gripping portion or a non-hollow gripping portion with a spiral combination, or a closed plane without a gripping portion, which are equally effective in achieving the removal of respiratory obstructions.

[0088] The negative pressure generating device of the utility model has a uniform size of the annular interface and the connection between the mask and the telescopic tube body. Even if masks of different shapes and sizes need to be matched, as long as each mask has a hollow connecting tube with the same outer diameter, it can be adapted to the negative pressure generating device with the annular interface having the connection of the uniform size. In this way, masks of different shapes and sizes can also be adapted to the same negative pressure generating device, thereby improving its versatility and reducing supply chain costs. The negative pressure generating device realizes the passage between the negative pressure chamber and the mask through the annular interface, and realizes the one-way flow of the airflow between the first one-way valve and the mask through the connection on the annular interface. The mask is provided with a hollow connecting tube corresponding to the connection on the annular interface, which simultaneously plays the role of structurally connecting the negative pressure generating device and the mask to form a whole.

[0089] When using the respiratory obstruction clearing device provided by the utility model, the mask and the negative pressure generating device are first assembled together, and the flexible annular cushion of the mask is surrounded by the mouth of the suffocating patient and fits tightly to the face, so as to open the patient's respiratory tract; then, the mask is held with one hand to keep the mask and the face sealed, and the gripping part of the negative pressure generating device is held with the other hand, and the gripping part is repeatedly compressed and stretched in the axial direction, so that the obstruction in the patient's respiratory tract can be quickly extracted through the negative pressure formed; when the retractable tube body realized by the elastic material and the overlapping structure is compressed During the process of the telescopic tube being stretched (the axial dimension becomes smaller), the gas in the telescopic tube or the airbag will be discharged to the outside through the second one-way valve, and cannot enter the patient's respiratory tract through the first one-way valve; during the process of the telescopic tube being stretched (the axial dimension becomes larger), the volume of the tube cavity increases, and the second one-way valve can prevent the outside gas from flowing into the gas storage cavity, thereby forming a negative pressure in the gas storage cavity, that is, the air pressure in the cavity is lower than the air pressure in the patient's respiratory tract at this time, so that the air pressure in the respiratory tract can form an outward thrust on the obstruction, thereby sucking out the obstruction and clearing it.

[0090] In summary, by using the clearing device, patients with airway obstruction and suffocation can be quickly and effectively rescued by simply repeating a simple stretching operation. In this way, when the "Heimlich" rescue method cannot be effectively implemented, we can use the clearing device to quickly and effectively rescue patients with airway obstruction and suffocation. Moreover, if you have airway obstruction and suffocation, you can use the clearing device to effectively rescue yourself when there is no one around to help.

[0091] Example 1

[0092] This embodiment provides a respiratory obstruction removal device that is easy to carry and transport. This embodiment provides a three-dimensional combination schematic diagram, a cross-sectional structure schematic diagram, a principle schematic diagram, and an innovative point representation diagram of the respiratory obstruction removal device. Figure 1 , Figure 3 , Figure 4-7 , Fig.12 . The respiratory obstruction removal device shown in the embodiment includes two parts: a negative pressure generating device 2 and a mask 1, wherein the mask 1 is used to cover the cheek of a human body, and the negative pressure generating device 2 is assembled and connected with the mask 1 to apply negative pressure. The negative pressure generating device 2 includes a gripping portion 21, a telescopic tube 24 and an annular interface 25 in sequence, and a sealing ring 22 is provided between the gripping portion 21 and the telescopic tube 24. Since the gripping portion 21 and the telescopic tube 24 are threadedly connected, the sealing ring 22 between the two is used to form a seal between the two. The negative pressure generating device 2 and the mask 1 are connected via the annular interface 25. When in use, the mask 1 can be covered on the cheek of a person, on the one hand, to connect the mouth and nose (respiratory organs) of the person, and on the other hand, the mask 1 is used to connect the negative pressure generating device 2 via the annular interface 25, and the latter applies negative pressure to the mask 1, and through the mask 1, the respiratory obstruction of the person is sucked out from the respiratory tract to remove it.

[0093] like Figure 1 and Figure 3As shown, a second one-way valve 27 is provided at the top of the gripping portion 21, the air outlet end is communicated with the outside, the air inlet end is communicated with the telescopic tube body 24, and a ring-shaped interface 25 for interfacing with the mask 1 is provided at the bottom of the telescopic tube body 24. A first one-way valve 26 is provided on a channel that runs through the ring-shaped interface 25 and connects the telescopic tube body 24 and the mask 1 (wherein the channel is a flow channel through which the gas flows from the mask 1 into the telescopic tube body when the telescopic tube body 24, the ring-shaped interface 25 and the mask 1 are connected), and is specifically provided on the mask 1 part in the channel. At the same time, the mask 1 includes a hollow connecting tube 121 that is opposite to and tightly connected to the ring-shaped interface 25. The hollow connecting tube 121 is inserted from bottom to top into the mask 1 interface of the ring-shaped interface 25 to achieve the connection between the ring-shaped interface 25 and the mask 1. The air inlet end of the first one-way valve 26 is in communication with the mask 1, and the air outlet end is in communication with the inside of the telescopic tube 24, that is, the gas in the mask 1 flows into the telescopic tube 24 through the hollow connecting tube 121 and the first one-way valve 26. It is used to realize the one-way flow of gas from the mask 1 to the inside of the telescopic tube 24, thereby preventing the gas in the telescopic tube 24 from being discharged from the annular interface 25 when the telescopic tube 24 is compressed, and thus flowing into the mask 1. At the same time, when the telescopic tube 24 is compressed and then extended again, negative pressure is generated in the telescopic tube 24, and the mask 1, under the action of the negative pressure, sucks the obstruction of the human respiratory tract into the telescopic tube 24 through the first one-way valve 26 and discharges it. In some other embodiments, the outer surface of the grip 21 is provided with an anti-slip structure to enhance the friction of the grip 21, reduce the situation where the hand is blocked from moving the retractable tube 24 up and down due to insufficient friction, and improve the convenience of the retractable tube 24 moving up and down for compression and stretching, thereby improving the efficiency of the clearing device in absorbing airway obstructions in patients.

[0094] The retractable tube body 24 is made of elastic material, and the surface of the tube body has a plurality of continuous foldable walls, so that the tube body is retractable in the axial direction. The cross-section of such a tube body can be circular, and the advantage of the circular shape is that it is easier to process. The retractable tube body 24 has two states in the negative pressure generating device 2: an extended state under normal conditions and a compressed state when under pressure. The compression and extension direction of the retractable tube body 24 is consistent with the length direction of the gripping portion 21, that is, the retractable tube body 24 is stretched and compressed by holding the gripping portion 21, so as to change the pressure therein and clear the obstruction of the human respiratory tract through the mask 1. The internal space of the retractable tube body 24, which is composed of the wrinkled part, is meshed and connected with the hollow structure of the gripping portion 21 through the threaded interface 23, and together forms a variable cavity with variable volume. Under normal conditions, when the retractable tube body 24 is in the extended state, the inside of the tube body 24 also has an inner cavity that can accommodate the middle and upper parts of the gripping portion 21, such as Figure 5As shown, specifically, the circumference of the outer edge of the gripping portion 21 is between 80-720 mm, and the inner edge of the annular interface 25 is between 30-360 mm. After the gripping portion 21 and the telescopic tube body 24 are disassembled by threaded rotation, the gripping portion 21 can be inverted into the inner cavity of the telescopic tube body 24. Through radial dimension matching, the gripping portion 21 can be prevented from falling out of one end of the annular interface 25 of the telescopic tube body 24, thereby achieving stable placement of the gripping portion 21 in the telescopic tube body 24. At the same time, the volume of the respiratory obstruction clearing device of the utility model can be reduced, making it easy to carry and transport. During transportation, the gripping portion 21 can be inverted into the inner cavity of the telescopic tube body 24, and the bottom of the gripping portion 21 becomes the top of the clearing device. Because the bottom of the gripping portion 21 is a flat plane, the inversion of the gripping portion 21 during transportation facilitates the neat and orderly stacking of the clearing device. Figure 6 As shown, the space occupied by the cleaning device is reduced, and more cleaning devices can be transported in the same transportation space. Figure 6-7 As shown, the other end of the telescopic tube 24 away from the gripping portion 21 is provided with an annular interface 25, and the annular interface 25 is used to connect the telescopic tube 24 and the mask 1. The mask 1 includes an upper portion 12, a lower portion 11 and a connector 13, the upper portion 12 is used to form a relatively close contact with the annular interface 25, the lower portion 11 is a flexible annular pad, and is used to make the mask 1 fully fit the cheek of the human body, and the connector 13 is used to connect the upper portion 12 and the lower portion 11. In order to facilitate production and manufacturing, the three can be integrally formed by molding.

[0095] In some other embodiments, the gripping portion 21 and the telescopic tube 24 may also be connected by snap fastening, zipper or other means.

[0096] In order to improve the sealing performance of the variable cavity formed by the telescopic tube body 24 and the gripping portion 21, the negative pressure generating device 2 also includes a sealing ring 22, which is used between the telescopic tube body 24 and the gripping portion 21. The sealing ring 22 is in a circular shape and is made of a food-grade safe elastic material. The inner and outer diameters of the sealing ring 22 correspond to the diameters of the interface end faces of the gripping portion 21 and the telescopic tube body 24, respectively. The thickness of the sealing ring 22 is between 0.1-1 mm. When in use, it is arranged between the threaded end face of the gripping portion 21 and the end face of the threaded interface 23 of the telescopic tube body 24. After the two are tightened, they are clamped between the two end faces so that the cavity formed by the hollow gripping portion 21 and the telescopic tube body 24 is sealed at the threaded connection, thereby ensuring that when the gripping portion 21 is held and pulled, the telescopic tube body 24 is airtight with the outside, thereby ensuring the airtightness of the entire cleaning device. In some other embodiments (such as Fig.12 As shown), the cross-section of the telescopic tube 24 may also be in other shapes, such as a triangle, a polygon or an ellipse.

[0097] In order to adapt to different groups of people, the mask 1 can be set to have a variety of different sizes of hollow connecting tubes 121 with the same outer diameter, and the corresponding annular interface 25 can be a variety of sizes with the same inner diameter at the center of the annular interface 25 and the connection between the mask 1 and the telescopic tube body 24. That is, except for the uniform size of the hollow connecting tube 121 and the center of the annular interface 25 and the connection between the mask 1 and the telescopic tube body 24, the other parts can be of any size to meet the needs of replacing masks 1 of different sizes in different practical scenarios, thereby meeting the situation that the cleaning device uses different masks 1 according to the face sizes of different patients, thereby improving the scope of application of the respiratory obstruction cleaning device of the utility model.

[0098] In summary, the respiratory obstruction clearing device of the present embodiment comprises a gripping portion 21, wherein the gripping portion 21 comprises a portion for hand-holding, a top portion and a bottom portion with an open mouth, a telescopic tube 24, which is made of elastic material and has a volume-variable cavity consisting of a hollow structure, one port of which is connected to the bottom of the gripping portion 21, and an annular interface 25, which is arranged at another port of the telescopic tube 24 away from the gripping portion 21, wherein the annular interface 25 is provided with a mask interface connected to the mask 1, wherein the mask 1 comprises: an upper portion 12, which is used to be in close contact with the annular interface 25; a lower portion 11, which is a flexible annular pad for the mask 1 to closely fit the cheek of the human body; a connecting body 13, which is used to connect the upper portion and the lower portion, and the respiratory obstruction clearing device further comprises: a first one-way valve 26, which is arranged on a channel that passes through the annular interface 25 and connects the telescopic tube 24 and the mask 1, and is specifically arranged on a portion of the mask 1 in the channel (such as Figure 4 A), whose air inlet end is communicated with the mask 1, and the air outlet end is communicated with the inside of the telescopic tube body 24. When the telescopic tube body 24 is compressed, the first one-way valve 26 prevents the gas in the telescopic tube body 24 from flowing into the mask 1, and when the telescopic tube body 24 is extended, the first one-way valve 26 allows the gas in the mask 1 to flow into the telescopic tube body 24; a second one-way valve 27 is arranged on the gripping portion 21, the air outlet end is communicated with the outside, and the air inlet end is communicated with the telescopic tube body 24. When the telescopic tube body 24 is compressed, the second one-way valve 27 allows the airflow in the telescopic tube body 24 to flow out to the outside; when the telescopic tube body 24 is extended, the second one-way valve 27 is closed to prevent the airflow in the telescopic tube body 24 from flowing out to the outside and the external airflow from flowing into the telescopic tube body 24, so as to maintain the negative pressure environment in the telescopic tube body 24.

[0099] Example 2

[0100] This embodiment provides a respiratory obstruction removal device that is easy to carry and transport. Figure 4This embodiment provides a schematic cross-sectional structure diagram of a respiratory obstruction removal device. Figure 4 In the embodiment of the utility model shown, the difference from the respiratory obstruction clearing device in Example 1 is that the first one-way valve 26 is arranged on the channel that passes through the annular interface 25 and connects the telescopic tube body 24 and the mask 1, and is specifically arranged on the annular interface 25 or the telescopic tube body 24 in the channel, providing a variety of implementation methods. The respiratory obstruction clearing device of the present embodiment includes a gripping portion 21, wherein the gripping portion 21 includes a portion for hand-holding, a top portion, and a bottom portion with an open mouth, a telescopic tube body 24, which is made of elastic material and has a volume-variable cavity consisting of a hollow structure, one port of which is connected to the bottom of the gripping portion 21, and an annular interface 25, which is arranged at another port of the telescopic tube body 24 away from the gripping portion 21, and the annular interface 25 is provided with a mask 1 interface connected to the mask 1, wherein the mask 1 includes: an upper portion 12, which is used to be in close contact with the annular interface 25; a lower portion 11, which is a flexible annular pad for the mask 1 to fit closely to the cheek of a human body; a connecting body 13, which is used to connect the upper portion and the lower portion, and the respiratory obstruction clearing device also includes: a first one-way valve 26, which is arranged on a channel that passes through the annular interface 25 and connects the telescopic tube body 24 and the mask 1, and is specifically arranged at a portion of the annular interface 25 in the channel (such as Figure 4 C) or the telescopic tube 24 portion (as shown in Figure 4 B), its air inlet end is communicated with the mask 1, and the air outlet end is communicated with the inside of the telescopic tube body 24. When the telescopic tube body 24 is compressed, the first one-way valve 26 prevents the gas in the telescopic tube body 24 from flowing into the mask 1. When the telescopic tube body 24 is extended, the first one-way valve 26 allows the gas in the mask 1 to flow into the telescopic tube body 24; a second one-way valve 27 is arranged on the gripping portion 21, the air outlet end is communicated with the outside, and the air inlet end is communicated with the telescopic tube body 24. When the telescopic tube body 24 is compressed, the second one-way valve 27 allows the airflow in the telescopic tube body 24 to flow out to the outside; when the telescopic tube body 24 is extended, the second one-way valve 27 is closed to prevent the airflow in the telescopic tube body 24 from flowing out to the outside and the external airflow from flowing into the telescopic tube body 24, so as to maintain the negative pressure environment in the telescopic tube body 24.

[0101] Example 3

[0102] This embodiment provides a respiratory obstruction removal device that is easy to carry and transport. Figure 2 , Figure 8 This embodiment provides a three-dimensional schematic diagram of a respiratory obstruction removal device. Figure 2 , Figure 8In the embodiment of the utility model shown, the difference from the respiratory obstruction clearing device in the first embodiment is that the second one-way valve 27 is arranged at other positions of the device except the top of the gripping portion 21. Specifically, the second one-way valve 27 can be arranged at the bottom of the annular interface 25 or on the telescopic tube 24. In order to improve the use stability of the clearing device, the outer surface of the gripping portion 21 is provided with an anti-skid structure, which can enhance the friction between the hand and the gripping portion 21, that is, when the hand is sweating, it can reduce the situation that the hand is blocked from moving the telescopic tube 24 up and down due to insufficient friction, and improve the convenience of the telescopic tube 24 moving up and down to compress and stretch, thereby improving the efficiency of the clearing device for the patient to absorb the respiratory obstruction. Specifically, in other embodiments, the anti-skid structure can be made of anti-skid materials such as silicone, or can be enhanced by bumps and grooves. The friction between the palm and the gripping portion 21.

[0103] The respiratory obstruction clearing device of the present embodiment includes a gripping portion 21, wherein the gripping portion 21 includes a portion for hand-holding, a top portion, and a bottom portion with an open mouth, a telescopic tube body 24, which is made of elastic material and has a volume-variable cavity consisting of a hollow structure, one port of which is connected to the bottom of the gripping portion 21, and an annular interface 25, which is arranged at another port of the telescopic tube body 24 away from the gripping portion 21, and the annular interface 25 is provided with a mask 1 interface connected to the mask 1, wherein the mask 1 includes: an upper portion 12, which is used to be in close contact with the annular interface 25; a lower portion 11, which is a flexible annular pad for the mask 1 to fit closely to the cheek of the human body; a connecting body 13, which is used to connect the upper portion and the lower portion, and the respiratory obstruction clearing device also includes: a first one-way valve 26, which is arranged on a channel that passes through the annular interface 25 and connects the telescopic tube body 24 and the mask 1, and its air inlet end is connected to the The mask 1 is communicated with the air outlet end of the telescopic tube body 24, and the air outlet end is communicated with the interior of the telescopic tube body 24. When the telescopic tube body 24 is compressed, the first one-way valve 26 prevents the gas in the telescopic tube body 24 from flowing into the mask 1. When the telescopic tube body 24 is extended, the first one-way valve 26 allows the gas in the mask 1 to flow into the telescopic tube body 24; a second one-way valve 27 is arranged on at least one of the telescopic tube body 24 or the annular interface 25, and its air outlet end is communicated with the outside, and the air inlet end is communicated with the telescopic tube body 24. When the telescopic tube body 24 is compressed, the second one-way valve 27 allows the airflow in the telescopic tube body 24 to flow out to the outside; when the telescopic tube body 24 is extended, the second one-way valve 27 is closed to prevent the airflow in the telescopic tube body 24 from flowing out to the outside and the external airflow from flowing into the telescopic tube body 24, so as to maintain the negative pressure environment in the telescopic tube body 24. By not arranging the second one-way valve 27 at the top, it is possible to reduce the possibility that the second one-way valve 27 is blocked by the palm when the palm grasps the grip 21 to compress the telescopic tube 24 when the second one-way valve 27 is arranged at the top, thereby improving the use efficiency of the cleaning device.

[0104] Example 4

[0105] This embodiment provides a respiratory obstruction removal device that is easy to carry and transport. Fig. 9 This embodiment provides a three-dimensional schematic diagram of a respiratory obstruction removal device. Fig. 9In the embodiment of the utility model shown, the difference from the respiratory obstruction clearing device in the first embodiment is that the connection port of the telescopic tube body 24 adjacent to the bottom of the holding portion 21 is closed, and the telescopic tube body 24 is rotationally engaged with the holding portion 21 through a threaded interface, wherein the holding portion 21 can be hollow or non-hollow. The respiratory obstruction clearing device of the present embodiment includes a gripping portion 21, wherein the gripping portion 21 includes a portion for hand-holding, a top portion, and a bottom portion with an open mouth; a telescopic tube 24, which is made of elastic material and has a volume-variable cavity consisting of a hollow structure, one port of which is connected to the bottom of the gripping portion 21; an annular interface 25, which is arranged at another port of the telescopic tube 24 away from the gripping portion 21; the annular interface 25 is provided with a mask interface connected to the mask 1, the mask 1 includes: an upper portion 12, which is used to be in close contact with the annular interface 25; a lower portion 11, which is a flexible annular pad for the mask 1 to fit closely to the cheek of a human body; a connecting body 13, which is used to connect the upper portion 12 and the lower portion 11; the respiratory obstruction clearing device also includes: a first one-way valve 26, which is arranged on a channel that passes through the annular interface 25 and connects the telescopic tube 24 and the mask 1, The air inlet end is communicated with the mask 1, and the air outlet end is communicated with the inside of the telescopic tube body 24. When the telescopic tube body 24 is compressed, the first one-way valve 26 prevents the gas in the telescopic tube body 24 from flowing into the mask 1. When the telescopic tube body 24 is extended, the first one-way valve 26 allows the gas in the mask 1 to flow into the telescopic tube body 24; the second one-way valve 27 is arranged on the telescopic tube body 24 or the annular interface 25, the air outlet end is communicated with the outside, and the air inlet end is communicated with the telescopic tube body 24. When the telescopic tube body 24 is compressed, the second one-way valve 27 allows the airflow in the telescopic tube body 24 to flow out to the outside; when the telescopic tube body 24 is extended, the second one-way valve 27 is closed to prevent the airflow in the telescopic tube body 24 from flowing out to the outside and the external airflow from flowing into the telescopic tube body 24, so as to maintain the negative pressure environment in the telescopic tube body 24.

[0106] Example 5

[0107] This embodiment provides a respiratory obstruction removal device that is easy to carry and transport. Fig.10 This embodiment provides a three-dimensional schematic diagram of a respiratory obstruction removal device. Fig.10In the embodiment of the utility model shown, the difference from the respiratory obstruction clearing device in Example 1 is that the negative pressure generating device 2 does not adopt the gripping portion 21 structure, but only includes a retractable tube body 24 and an annular interface 25. The sealed top of the retractable tube body 24 is provided with a handle in the form of a hanging rope, a detachable handle, a buckle, handles on both sides or other handle forms that are convenient for applying force, so that the user can switch the compression and extension states of the retractable tube body 24, thereby realizing the variable space volume in the retractable tube body 24. The negative pressure generating device 2 is provided with a second one-way valve 27. The respiratory obstruction clearing device of the present embodiment comprises a telescopic tube body 24, which is made of elastic material and has a volume-variable cavity composed of a hollow structure, an annular interface 25, which is arranged at the bottom of the telescopic tube body 24, and the annular interface 25 is provided with a mask 1 interface connected to the mask 1, and the mask 1 comprises: an upper part 12, which is used to be in close contact with the annular interface 25; a lower part 11, which is a flexible annular pad for the mask 1 to fit closely to the cheek of the human body; a connecting body 13, which is used to connect the upper part 12 and the lower part 11, and the respiratory obstruction clearing device also comprises: a first one-way valve 26, which is arranged on a channel that passes through the annular interface 25 and connects the telescopic tube body 24 and the mask 1, and its air inlet end is communicated with the mask 1, and the air outlet end is connected with the inside of the telescopic tube body 24. When the telescopic tube 24 is compressed, the first one-way valve 26 prevents the gas in the telescopic tube 24 from flowing into the mask 1; when the telescopic tube 24 is extended, the first one-way valve 26 allows the gas in the mask 1 to flow into the telescopic tube 24; a second one-way valve 27 is arranged on the negative pressure generating device 2, with an air outlet end communicating with the outside, and an air inlet end communicating with the telescopic tube 24. When the telescopic tube 24 is compressed, the second one-way valve 27 allows the airflow in the telescopic tube 24 to flow out to the outside; when the telescopic tube 24 is extended, the second one-way valve 27 is closed to prevent the airflow in the telescopic tube 24 from flowing out to the outside and the external airflow from flowing into the telescopic tube 24, so as to maintain the negative pressure environment in the telescopic tube 24.

[0108] In other embodiments, the handle can also be configured as a handle pull ring, etc. The configuration of the handle can simplify the structure of the gripping portion 21 in the first embodiment. Since the top of the retractable tube 24 is a flat plane, it is convenient for the neat and orderly stacking of the cleaning devices during transportation, and reduces the space occupied by the cleaning devices. In the same transportation space, more cleaning devices can be transported and are also convenient to carry. At the same time, the production process and manufacturing cost can also be simplified.

[0109] Example 6

[0110] This embodiment provides a respiratory obstruction removal device that is easy to carry and transport. Fig.11This embodiment provides a three-dimensional schematic diagram of a respiratory obstruction removal device. Fig.11 The embodiment of the utility model shown is different from the respiratory tract obstruction clearing device in the first embodiment in that the gripping portion 21 and the telescopic tube 24 are in a non-movable connection and cannot be disassembled. The respiratory obstruction clearing device of the present embodiment includes a gripping portion 21 and a telescopic tube body 24. The gripping portion 21 and the telescopic tube body 24 are in an inactive connection. The telescopic tube body 24 is made of an elastic material and has a volume-variable cavity consisting of a hollow structure. One port is connected to the bottom of the gripping portion 21. An annular interface 25 is arranged at another port of the telescopic tube body 24 away from the gripping portion 21. The annular interface 25 is provided with a mask interface connected to the mask 1. The mask 1 includes: an upper portion 12 for being in close contact with the annular interface 25; a lower portion 11, a flexible annular pad for the mask 1 to fit closely to the cheek of a human body; a connecting body 13 for connecting the upper portion 12 and the lower portion 11. The respiratory obstruction clearing device also includes: a first one-way valve 26, which is arranged in a passage that passes through the annular interface 25 and connects the telescopic tube body 24 and the mask 1 On the upper part, its air inlet end is communicated with the mask 1, and the air outlet end is communicated with the inside of the telescopic tube body 24. When the telescopic tube body 24 is compressed, the first one-way valve 26 prevents the gas in the telescopic tube body 24 from flowing into the mask 1. When the telescopic tube body 24 is extended, the first one-way valve 26 allows the gas in the mask 1 to flow into the telescopic tube body 24; the second one-way valve 27 is arranged on the holding part 21, the air outlet end is communicated with the outside, and the air inlet end is communicated with the telescopic tube body 24. When the telescopic tube body 24 is compressed, the second one-way valve 27 allows the airflow in the telescopic tube body 24 to flow out to the outside; when the telescopic tube body 24 is extended, the second one-way valve 27 is closed to prevent the airflow in the telescopic tube body 24 from flowing out to the outside and the external airflow from flowing into the telescopic tube body 24, so as to maintain the negative pressure environment in the telescopic tube body 24.

[0111] In addition, the technical features in the above embodiments may be combined as needed to obtain a respiratory obstruction clearing device including all or part of the above technical features.

[0112] The respiratory obstruction removal device of the utility model has at least the following beneficial effects:

[0113] 1) The respiratory obstruction removal device of the utility model is detachable, which is particularly prominent compared to most disposable products on the current market. This design is environmentally friendly and easier to maintain on a daily basis. In traditional products, if the storage cannot be completely sealed, dust and insects may invade the interior of the product, and the non-detachable design means that these impurities cannot be effectively cleaned, which may cause the dirt hidden inside the device to enter the human body during use, or block the airflow channel, thereby affecting the use effect. In addition, users usually try the product after purchasing it to confirm the effect of the product, but if the device cannot be cleaned, this may cause hygiene problems. In addition, after using a disposable product to remove respiratory obstruction, the non-detachable design means that the entire product must be discarded, which imposes a burden on environmental protection. Therefore, our design makes the product detachable to facilitate users to carry out daily cleaning and maintenance, and it can also be cleaned and disinfected after use and reused, thereby improving the service life and cost-effectiveness of the product while reducing the impact on the environment.

[0114] 2) The respiratory obstruction removal device of the utility model optimizes the product volume with a detachable design, so that more products can be loaded in the same transportation space, effectively reducing the number of transportation vehicles required. This design greatly improves transportation efficiency and cost-effectiveness, not only reducing logistics costs, but also reducing the number of vehicles, helping to reduce exhaust emissions and playing a positive role in environmental protection.

[0115] 3) The reduction in product size also provides users with greater portability. Users can more conveniently place the product in a carry-on bag or in the storage box of the front seat of a car. This design greatly increases the frequency of users carrying the product with them, so that when suffocation occurs, users can immediately use the device to clear airway obstruction, thereby achieving faster and more effective emergency rescue.

[0116] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the inspiration of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, all of which are within the protection of the utility model.

Claims

1. A respiratory obstruction removal device, comprising a mask, and a negative pressure generating device for applying negative pressure to the mask; characterized in that: The negative pressure generating device comprises: A grip portion, comprising a portion for hand-holding and a top portion and a bottom portion having an open mouth; A retractable tube body, made of elastic material, having a volume-variable cavity formed by a hollow structure, and one end connected to the bottom of the grip portion; An annular interface, provided at another end of the telescopic tube body away from the gripping portion, the annular interface being provided with a mask interface connected to the mask; The mask comprises: an upper portion for being in close contact with the annular interface, a lower portion of a flexible annular pad for the mask to closely fit the cheek of a human body, and a connector for connecting the upper portion and the lower portion; The respiratory obstruction clearing device further comprises: a first one-way valve, which is arranged on a passage penetrating the annular interface and connecting the telescopic tube body and the mask, wherein the air inlet end thereof is in communication with the mask, and the air outlet end thereof is in communication with the interior of the telescopic tube body; when the telescopic tube body is compressed, the first one-way valve prevents the gas in the telescopic tube body from flowing into the mask; when the telescopic tube body is extended, the first one-way valve allows the gas in the mask to flow into the telescopic tube body; A second one-way valve is arranged on the holding part, with an air outlet end communicating with the outside and an air inlet end communicating with the telescopic tube body. When the telescopic tube body is compressed, the second one-way valve allows the airflow in the telescopic tube body to flow out to the outside; when the telescopic tube body is extended, the second one-way valve is closed to prevent the airflow in the telescopic tube body from flowing out to the outside and the external airflow from flowing into the telescopic tube body, so as to maintain a negative pressure environment inside the telescopic tube body.

2. The respiratory obstruction clearing device according to claim 1, characterized in that: The negative pressure generating device further comprises a threaded interface, which is arranged at one end of the telescopic tube body adjacent to the bottom of the gripping portion and is used for threadably engaging with the thread at the bottom of the gripping portion.

3. The respiratory obstruction clearing device according to claim 2, characterized in that: The inner diameter of the threaded interface is smaller than the outer diameter of the gripping portion, and the telescopic tube body has an inner cavity size capable of accommodating the gripping portion inverted therein in a normally extended state.

4. The respiratory tract obstruction clearing device according to claim 1, characterized in that: The periphery of the annular interface is sealedly connected to the periphery of the telescopic tube body away from the port of the gripping portion, and the upper part of the mask includes a hollow connecting tube that is opposite to and tightly fitted with the mask interface of the annular interface.

5. The respiratory obstruction clearing device according to claim 4, characterized in that: The negative pressure generating device includes an annular interface with a unified mask interface, which is used to match any of the masks with hollow connecting tubes of multiple sizes and the same outer diameter.

6. The respiratory tract obstruction clearing device according to claim 2, characterized in that: The negative pressure generating device also includes a sealing ring for sealing between the bottom of the gripping portion and the threaded interface of the telescopic tube.

7. The respiratory obstruction clearing device according to claim 3, characterized in that: The elastic coefficient of the material of the gripping portion is smaller than the elastic coefficient of the material of the telescopic tube.

8. The respiratory obstruction clearing device according to claim 3, characterized in that: The outer surface of the gripping portion has an anti-slip structure.

9. A respiratory obstruction clearing device, comprising a mask and a negative pressure generating device communicating with the mask and acting with negative pressure; characterized in that: The negative pressure generating device comprises: A grip portion, including a portion for holding the hand and a top and bottom portion; A retractable tube body, made of elastic material, having a volume-variable cavity formed by a hollow structure, and one end connected to the bottom of the gripping portion; An annular interface, provided at another end of the telescopic tube body away from the gripping portion, the annular interface being provided with a mask interface connected to the mask; The mask comprises: an upper portion for being in close contact with the annular interface, a lower portion of a flexible annular pad for the mask to closely fit the cheek of a human body, and a connector for connecting the upper portion and the lower portion; The respiratory obstruction clearing device further comprises: a first one-way valve disposed on a passage penetrating the annular interface and connecting the telescopic tube body and the mask, wherein an air outlet end of the first one-way valve is in communication with the interior of the telescopic tube body, and an air inlet end of the first one-way valve is in communication with the mask; A second one-way valve is arranged on the telescopic tube body, and the air outlet end of the second one-way valve is communicated with the outside, and the air inlet end is communicated with the inside of the telescopic tube body; when the telescopic tube body is compressed, the first one-way valve is closed to prevent the gas in the telescopic tube body from flowing into the mask, and the second one-way valve allows the airflow in the telescopic tube body to flow out to the outside; when the telescopic tube body is extended, the first one-way valve is opened to allow the gas in the mask to flow into the telescopic tube body; the second one-way valve is closed to prevent the airflow in the telescopic tube body from flowing out to the outside and the external airflow from flowing into the telescopic tube body, so as to maintain a negative pressure environment in the telescopic tube body.

10. The respiratory tract obstruction clearing device according to claim 9, characterized in that: The negative pressure generating device further comprises a threaded interface, which is arranged at one end of the telescopic tube body adjacent to the bottom of the gripping portion and is used for threadably engaging with the thread of the bottom of the gripping portion.

11. The respiratory tract obstruction clearing device according to claim 9, characterized in that: The connecting port of the telescopic tube adjacent to the bottom of the gripping portion is closed.

12. The respiratory obstruction clearing device according to claim 10, characterized in that: The inner diameter of the threaded interface is smaller than the outer diameter of the gripping portion, and the telescopic tube body has an inner cavity for accommodating the gripping portion inverted therein in a normally extended state.

13. The respiratory obstruction clearing device according to claim 9, characterized in that: The periphery of the annular interface is sealedly connected to the periphery of the telescopic tube body away from the port of the gripping portion, and the upper part of the mask includes a hollow connecting tube that is opposite to and tightly fitted with the mask interface of the annular interface.

14. The respiratory obstruction clearing device according to claim 10, characterized in that: The negative pressure generating device also includes a sealing ring for sealing between the bottom of the gripping portion and the threaded interface of the telescopic tube.

15. The respiratory obstruction clearing device according to claim 11, characterized in that: The outer surface of the gripping portion has an anti-slip structure.

16. A respiratory obstruction clearing device, comprising a mask for covering the cheek and a negative pressure generating device for applying negative pressure to the mask; characterized in that: The negative pressure generating device comprises: The telescopic tube is made of elastic material and includes a volume-variable cavity having a hollow structure at the top, bottom and middle; An annular interface, arranged at the bottom of the telescopic tube, the annular interface being provided with a mask interface connected to the mask; The mask comprises: an upper portion for being in close contact with the annular interface, a lower portion of a flexible annular pad for the mask to closely fit the cheek of a human body, and a connector for connecting the upper portion and the lower portion; The respiratory obstruction clearing device further comprises: a first one-way valve, which is arranged on a passage penetrating the annular interface and connecting the telescopic tube body and the mask, wherein the air inlet end thereof is in communication with the mask, and the air outlet end thereof is in communication with the interior of the telescopic tube body; when the telescopic tube body is compressed, the first one-way valve prevents the gas in the telescopic tube body from flowing into the mask; when the telescopic tube body is extended, the first one-way valve allows the gas in the mask to flow into the telescopic tube body; A second one-way valve is arranged on at least one of the telescopic tube body or the annular interface, with an air outlet end communicating with the outside and an air inlet end communicating with the telescopic tube body. When the telescopic tube body is compressed, the second one-way valve allows the airflow in the telescopic tube body to flow out to the outside; when the telescopic tube body is extended, the second one-way valve is closed to prevent the airflow in the telescopic tube body from flowing out to the outside and the external airflow from flowing into the telescopic tube body, so as to maintain a negative pressure environment in the telescopic tube body.

17. The respiratory obstruction clearing device according to claim 16, characterized in that: The material and structure of the telescopic tube ensure that its axial elastic coefficient is much greater than the elastic coefficients in other directions.

18. The respiratory obstruction clearing device according to claim 16, characterized in that: A handle or a handle buckle is arranged on the top of the telescopic tube, and the elasticity of the handle or the handle buckle is much smaller than the axial elasticity of the telescopic tube.

19. The respiratory obstruction clearing device according to claim 16, characterized in that: The periphery of the annular interface is sealedly connected to the periphery of the bottom of the telescopic tube body, and the upper part of the mask includes a hollow connecting tube which is opposite to and tightly fitted with the mask interface of the annular interface.

20. The respiratory obstruction clearing device according to claim 19, characterized in that: The negative pressure generating device includes an annular interface with a unified mask interface, which is used to match any of the masks with hollow connecting tubes of multiple sizes and the same outer diameter.

21. A respiratory obstruction clearing device, comprising a mask and a negative pressure generating device for applying negative pressure to the mask; characterized in that: The negative pressure generating device comprises: The telescopic tube is made of elastic material and includes a volume-variable cavity having a hollow structure at the top, bottom and middle; An annular interface, arranged at the bottom of the telescopic tube, the annular interface being provided with a mask interface connected to the mask; The mask comprises: an upper portion for being in close contact with the annular interface, a lower portion of a flexible annular pad for the mask to closely fit the cheek of a human body, and a connector for connecting the upper portion and the lower portion; The respiratory obstruction clearing device further comprises: a first one-way valve disposed on a passage penetrating the annular interface and connecting the telescopic tube body and the mask, wherein an air outlet end of the first one-way valve is in communication with the interior of the telescopic tube body, and an air inlet end of the first one-way valve is in communication with the mask; A second one-way valve is arranged on the negative pressure generating device, and the air outlet end of the second one-way valve is communicated with the outside, and the air inlet end is communicated with the inside of the telescopic tube body; when the telescopic tube body is compressed, the first one-way valve is closed to prevent the gas in the telescopic tube body from flowing into the mask, and the second one-way valve allows the airflow in the telescopic tube body to flow out to the outside; when the telescopic tube body is extended, the first one-way valve is opened to allow the gas in the mask to flow into the telescopic tube body; the second one-way valve is closed to prevent the airflow in the telescopic tube body from flowing out to the outside; wherein the first one-way valve and the second one-way valve are arranged on the negative pressure generating device opposite to each other.

22. The respiratory obstruction clearing device according to claim 21, characterized in that: A drawstring or a handle is arranged on the top of the telescopic tube.

23. The respiratory obstruction clearing device according to claim 21, characterized in that: The periphery of the annular interface is sealedly connected to the periphery of the bottom of the telescopic tube body, and the upper part of the mask includes a hollow connecting tube which is opposite to and tightly fitted with the mask interface of the annular interface.

24. The respiratory tract obstruction clearing device according to claim 23, characterized in that: The negative pressure generating device includes an annular interface with a unified mask interface, which is used to match any of the masks with hollow connecting tubes of multiple sizes and the same outer diameter.

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