Anti-choking device

Abstract

This application discloses an anti-asphyxiation device, including a connector, a mask, a negative pressure generating component, and a valve core assembly. The connector forms a first gas flow channel and a first interface, a second interface, and a first connecting port communicating with the first gas flow channel. The first connecting port is used to communicate with the outside atmosphere. The first interface is connected to the mask, and the second interface is connected to the negative pressure generating component. By adjusting the position of the valve core assembly, the second gas flow channel can selectively communicate with the second interface or with the first connecting port. When the second gas flow channel is connected to the second interface, the generated negative pressure can suck up foreign objects from the respiratory tract or pharynx. When the second gas flow channel is connected to the first connecting port, it allows the user to exchange gases with the external environment in a timely manner without removing the anti-asphyxiation device. Furthermore, by switching between the first connecting port and the second interface, repeated negative pressure impacts can be applied to the respiratory tract or pharynx, thereby facilitating the expulsion of foreign objects.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to an anti-asphyxiation device. Background Technology

[0002] Asphyxiation caused by a foreign object blocking the airway is an extremely dangerous emergency that can quickly lead to serious consequences. When a foreign object completely blocks the airway, the body cannot carry out effective gas exchange, and within minutes, it can lead to loss of consciousness, brain damage, or even death due to lack of oxygen.

[0003] In related technologies, a negative pressure suction device is generally used to suction foreign objects in the throat. This device generates negative pressure by moving a piston. However, after long-term use, the negative pressure effect weakens, and the piston needs to be moved repeatedly to store energy. The negative pressure generation efficiency is low, which affects the emergency response time. Utility Model Content

[0004] This application provides an anti-asphyxiation device that can solve the technical problems of the pharyngeal negative pressure suction device in the related art, which weakens the negative pressure effect after long-term use, requires repeated piston movement to store energy, has low negative pressure generation efficiency, and affects the emergency rescue time.

[0005] This application provides an anti-suffocation device, including:

[0006] A connector is formed with a first gas flow channel. The connector is also formed with a first interface, a second interface and a first connection port that communicate with the first gas flow channel. The first connection port is used to communicate with the outside atmosphere.

[0007] The face mask is connected to the first interface;

[0008] The negative pressure generating component is connected to the second interface;

[0009] A valve core assembly is inserted into the first gas flow channel and is movable relative to the connector. The valve core assembly forms a second gas flow channel that communicates with the first gas flow channel. When the valve core assembly is movable relative to the connector, the second gas flow channel can selectively communicate with the second interface or with the first communication port.

[0010] In some embodiments, the first gas flow channel includes a first channel and a second channel that are interconnected with each other. The first interface is disposed on the first channel, and the second interface and the first communication port are disposed on the second channel. The valve core assembly is movably inserted into the second channel. The second channel has a connection port that communicates with the first channel. A limiting member is formed at the first end of the valve core assembly. The limiting member extends into the first channel. A limiting block is disposed in the first channel.

[0011] Specifically, when the valve core assembly moves to the point where the limiting member abuts against the wall of the connection port, the second gas flow channel is connected to one of the second interface and the first communication port; when the valve core assembly moves to the point where the limiting member abuts against the limiting block, the second gas flow channel is connected to the second interface and the other of the first communication port.

[0012] In some embodiments, the limiting member includes:

[0013] ontology;

[0014] A first sealing element is disposed on the side of the body facing the second channel. When the limiting element abuts against the wall surface of the connection port, the first sealing element is elastically pressed between the body and the wall surface of the connection port.

[0015] In some embodiments, the axis of the first channel is set at an angle to the axis of the second channel.

[0016] In some embodiments, the valve core assembly includes a valve stem and a limiting member, the limiting member being disposed at the end of the valve stem and detachably connected to the valve stem.

[0017] In some embodiments, the valve core assembly includes a valve stem and two sets of second seals, the second gas flow channel includes a sub-flow channel, the two ends of the sub-flow channel form a second connection port and a third connection port, the second connection port is used to communicate with the second interface, and the third connection port is used to communicate with the first connection port;

[0018] Along the extension direction of the valve stem, two sets of the second seals are respectively disposed on both sides of the sub-flow channel.

[0019] In some embodiments, the valve core assembly includes a valve stem and an elastic element sleeved on the valve stem, the valve stem forming a second gas flow channel, the elastic element being located outside the first gas flow channel, and one end of the elastic element being connected to the valve stem, and the other end of the elastic element being connected to the connector.

[0020] In some embodiments, the mask is detachably connected to the connector;

[0021] And / or, the negative pressure generating component is detachably connected to the connector.

[0022] In some embodiments, the connector further forms a negative pressure cavity, which is connected to the first gas flow channel, and the second interface is located on the side of the negative pressure cavity opposite to the first gas flow channel.

[0023] In some embodiments, the second interface and the first communication port are located on opposite sides of the first gas flow channel.

[0024] An anti-asphyxiation device based on an embodiment of this application includes a connector, a mask, a negative pressure generating component, and a valve core assembly. The connector forms a first gas flow channel and a first interface, a second interface, and a first connecting port communicating with the first gas flow channel. The first connecting port is used to communicate with the outside atmosphere. The first interface is connected to the mask, and the second interface is connected to the negative pressure generating component. By adjusting the position of the valve core assembly, the second gas flow channel can be selectively connected to the second interface or the first connecting port. When the second gas flow channel is connected to the second interface, a negative pressure environment can be formed inside the mask to absorb foreign objects from the respiratory tract or pharynx. When the second gas flow channel is connected to the first connecting port, the user can exchange gases with the outside environment in a timely manner without removing the anti-asphyxiation device. Furthermore, by switching between the first connecting port and the second interface, repeated negative pressure impacts can be applied to the respiratory tract or pharynx, which is conducive to the expulsion of foreign objects. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A schematic diagram of the anti-asphyxiation device provided in the embodiment of this application in ventilation mode;

[0027] Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A;

[0028] Figure 3 A schematic diagram of the anti-suffocation device in negative pressure mode is provided for the embodiments of this application.

[0029] Figure reference numerals:

[0030] 100. Connector; 100a. First gas flow channel; 100a1. First channel; 100a2. Second channel; 100a3. Connecting port; 100b. First interface; 100c. Second interface; 100d. First connecting port; 100e. Negative pressure chamber; 101. Limiting block;

[0031] 200. Face mask;

[0032] 300, Valve core assembly; 300a, Second gas flow channel; 300a1, Sub-flow channel; 300a2, Second connecting port; 300a3, Third connecting port; 310, Valve stem; 320, Limiting element; 321, Body; 322, First sealing element; 330, Second sealing element; 340, Elastic element. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0034] Asphyxiation caused by a foreign object blocking the airway is an extremely dangerous emergency that can quickly lead to serious consequences. When a foreign object completely blocks the airway, the body cannot carry out effective gas exchange, and within minutes, it can lead to loss of consciousness, brain damage, or even death due to lack of oxygen.

[0035] In existing technologies, negative pressure is generally generated by piston movement. However, the negative pressure effect weakens after long-term use, and the piston needs to be moved repeatedly to store energy. This results in low efficiency in generating negative pressure and affects emergency response time.

[0036] To resolve the above issues, please refer to [link / reference]. Figure 1-3 This application proposes an anti-suffocation device, including a connector 100, a mask 200, a negative pressure generating component, and a valve core assembly 300.

[0037] The connector 100 serves as the central channel and interface hub for gas flow. It has a first gas flow channel 100a inside. The connector 100 also has a first interface 100b, a second interface 100c, and a first connecting port 100d that communicate with the first gas flow channel 100a. The first connecting port 100d is used to communicate with the outside atmosphere.

[0038] The mask 200 seals and covers the user's mouth and nose, forming a negative pressure area. It is generally made of silicone or thermoplastic elastomer to ensure that the mask 200 has a certain degree of flexibility, so that it can be used by most users. The mask 200 is connected to the first interface 100b.

[0039] The negative pressure generating component is connected to the second interface 100c. The negative pressure generating component can be an air pump or a negative pressure suction device, or other devices in the prior art that can generate negative pressure. The negative pressure generating component is a power source that provides the negative pressure (suction) required to remove foreign objects.

[0040] The valve core assembly 300 is inserted into the first gas flow channel 100a and can move relative to the connector 100. The valve core assembly 300 forms a second gas flow channel 300a that communicates with the first gas flow channel 100a. When the valve core assembly 300 moves relative to the connector 100, the second gas flow channel 300a can selectively communicate with the second interface 100c or with the first communication port 100d.

[0041] The valve core assembly 300 controls the alternation of negative pressure and ventilation, so that the entire anti-suffocation device has both negative pressure mode and ventilation mode.

[0042] In negative pressure mode, the valve core assembly 300 moves to connect the second gas flow channel 300a with the second interface 100c, that is, to the negative pressure generating component. Under the action of the negative pressure generating component, suction is activated to remove foreign objects.

[0043] In ventilation mode, the valve core assembly 300 moves to connect the second gas flow channel 300a with the first connection port 100d, that is, to the outside atmosphere, allowing the user to breathe normally.

[0044] The valve core assembly 300 quickly switches between two modes, generating repeated negative pressure-normal pressure cycles. This eliminates the need to remove the anti-asphyxiation device, and the resulting impact helps to suction out foreign objects from the airway or pharynx. In addition, it avoids prolonged negative pressure that could affect the user's normal breathing, and prevents excessive suction or prolonged negative pressure from over-adsorbing the airway mucosa (such as the pharynx and trachea), leading to mucosal tears, bleeding, or even tissue necrosis. Through brief, repeated negative pressure pulses, foreign objects can be loosened while giving the mucosa time to recover its elasticity, reducing the risk of damage.

[0045] Since the negative pressure generating component in this embodiment can be an air pump or other electric negative pressure suction device, the movement of the valve core assembly 300 does not require spring energy storage, reducing the difficulty of operation.

[0046] Further, please refer to Figure 2The first gas flow channel 100a includes a first channel 100a1 and a second channel 100a2 that are interconnected. A first interface 100b is provided on the first channel 100a1, and a second interface 100c and a first communication port 100d are provided on the second channel 100a2. A valve core assembly 300 is movably inserted into the second channel 100a2. The second channel 100a2 has a connection port 100a3 that communicates with the first channel 100a1. A limiting member 320 is formed at the first end of the valve core assembly 300. The limiting member 320 extends into the first channel 100a1. A limiting block 101 is provided in the first channel 100a1. The limiting block 101 has an orthographic projection on the port wall. Therefore, when the valve core assembly 300 moves, the limiting member 320 always moves within the first channel 100a1, making it difficult for the valve core assembly 300 to fall off the connecting member 100 and ensuring the overall stability.

[0047] Specifically, when the valve core assembly 300 moves to the point where the limiting member 320 abuts against the wall of the connection port 100a3, the second gas flow channel 300a is connected to one of the second interface 100c and the first connecting port 100d. When the valve core assembly 300 moves to the point where the limiting member 320 abuts against the limiting block 101, the second gas flow channel 300a is connected to the second interface 100c and the other of the first connecting port 100d is connected.

[0048] In this embodiment of the application, the second gas flow channel 300a is connected to the first communication port 100d when the valve core assembly 300 moves to the point where the limiting member 320 abuts against the port wall of the connection port 100a3, which is the ventilation mode. When the valve core assembly 300 moves to the point where the limiting member 320 abuts against the limiting block 101, the second gas flow channel 300a is connected to the second interface 100c, which is the negative pressure mode.

[0049] By setting the limiting component 320 and the limiting block 101, a mechanical limit is formed. Without visual confirmation, the operator can judge whether the mode switch is in place by touch, thereby shortening the switching time between negative pressure mode and ventilation mode.

[0050] Since the valve core assembly 300 is movably inserted into the second channel 100a2, and the first interface 100b communicating with the mask 200 is located in the first channel 100a1, the overall length of the device can be reduced by setting the axis of the first channel 100a1 and the axis of the second channel 100a2 at an angle, making it more convenient to carry. In some embodiments, the angle between the axis of the first channel 100a1 and the axis of the second channel 100a2 is a right angle.

[0051] Please continue reading. Figure 2The limiting member 320 includes a body 321 and a first sealing member 322. The first sealing member 322 is disposed on the side of the body 321 facing the second channel 100a2. When the limiting member 320 abuts against the opening wall of the connection port 100a3, the first sealing member 322 is elastically squeezed between the body 321 and the opening wall of the connection port 100a3.

[0052] When the first sealing element 322 is under pressure, it deforms and actively fills the gap between the body 321 and the wall of the connection port 100a3 (such as machining lines and assembly errors) to achieve a good seal. In this way, when the user exchanges gas with the outside world, the negative pressure effect of the negative pressure generating component can be guaranteed.

[0053] The first sealing element 322 can be made of elastic materials such as rubber or silicone, without any specific restrictions. The first sealing element 322 transforms the rigid collision between the limiting element 320 and the wall surface into a viscoelastic contact, which can absorb impact energy and thus reduce the wear of the limiting element 320 and the connecting element 100.

[0054] Following the above, since the limiting member 320 mainly moves within the first channel 100a1, and considering the assembly of the limiting member 320, in one embodiment of this application, the valve core assembly 300 includes a valve stem 310 and a limiting member 320. The limiting member 320 is disposed at the end of the valve stem 310 and is detachably connected to the valve stem 310.

[0055] The detachable connection can be either a threaded connection or a snap-fit ​​connection. In this embodiment, the valve stem 310 and the limiting member 320 are exemplarily connected by a thread. That is, an external thread can be provided on the surface of the valve stem 310, and an internal thread can be formed on the limiting member 320. The threaded connection between the valve stem 310 and the limiting member 320 is achieved through the cooperation of the external thread and the internal thread.

[0056] The detachable connection between the valve stem 310 and the limiting member 320 facilitates the removal of the valve stem 310 and the limiting member 320 from the connector 100, thereby making maintenance and replacement convenient. It can also be understood that when the limiting member 320 includes the body 321 and the first seal 322, the first seal 322 can be sleeved on the valve stem 310. In this way, when the limiting member 320 is disassembled, the first seal 322 can be inspected and replaced in a timely manner.

[0057] Please continue reading. Figure 2 In one embodiment of this application, the valve core assembly 300 includes a valve stem 310 and two sets of second seals 330. The second gas flow channel 300a includes a sub-flow channel. The two ends of the sub-flow channel form a second connection port and a third connection port. The second connection port is used to communicate with the second interface 100c, and the third connection port is used to communicate with the first connection port 100d.

[0058] The second sealing element 330 can be a rubber sealing ring or a silicone sealing ring. An annular groove can be formed on the outer wall of the valve stem 310 to install the second sealing element 330. Since the two sets of second sealing elements 330 are respectively located on both sides of the sub-flow channel along the extension direction of the valve stem 310, when the valve stem 310 moves to the second communication port and communicates with the second interface 100c, the second sealing element 330 can isolate the external atmosphere from the communication with the second interface 100c, ensuring that the negative pressure generating component can provide a good negative pressure effect.

[0059] Similarly, when the valve stem 310 moves to the point where the third connection port connects with the first connection port 100d, the negative pressure generating component works, and the second seal 330 can also isolate the external atmosphere from the second interface 100c, thus ensuring that the negative pressure generating component can provide a good negative pressure effect.

[0060] Optionally, in order to enable the valve core assembly 300 to automatically rebound, that is, for the user to press only once to enable the second gas flow channel 300a to connect with the second interface 100c or the first connection port 100d, in one embodiment of this application, the valve core assembly 300 includes a valve stem 310 and an elastic member 340 sleeved on the valve stem 310. The valve stem 310 forms the second gas flow channel 300a, the elastic member 340 is located outside the first gas flow channel 100a, and one end of the elastic member 340 is connected to the valve stem 310, and the other end of the elastic member 340 is connected to the connector 100.

[0061] Among them, the elastic element 340 can be a spring; please refer to... Figure 1 as well as Figure 3 When the spring is not pressed, the valve stem 310 is in the first position, that is, the second gas flow channel 300a is connected to the first connection port 100d and not connected to the second interface 100c. When the spring is pressed, the valve stem 310 is in the second position, that is, the second gas flow channel 300a is connected to the second interface 100c and not connected to the first connection port 100d. At this time, the negative pressure generating component provides negative pressure.

[0062] The elastic element 340 allows the mask 200 to communicate with the outside atmosphere through the first gas flow channel 100a, the second gas flow channel 300a, and the first connecting port 100d when the anti-asphyxiation device is not in use. After pressing the valve stem 310, the mask 200 can communicate with the negative pressure generating component through the first gas flow channel 100a, the second gas flow channel 300a, and the second interface 100c. When the user does not apply force to the valve stem 310, the valve stem 310 can be reset under the action of the elastic element 340, that is, it can quickly switch from the negative pressure mode to the ventilation mode. Pressing the valve stem 310 again can switch from the ventilation mode to the negative pressure mode. In this way, the quick reset function of the elastic element 340 can not only reduce the user's operating difficulty, but also frequently switch between the negative pressure mode and the ventilation mode, thereby providing repeated impact force, which can simulate the "Heimlich maneuver" and thus more quickly suck out foreign objects from the airway or pharynx.

[0063] In one embodiment of this application, please refer to... Figure 1 as well as Figure 3 The connector 100 also forms a negative pressure chamber 100e, which is connected to the first gas flow channel 100a. The second interface 100c is located on the side of the negative pressure chamber 100e away from the first gas flow channel 100a.

[0064] With the setting of negative pressure chamber 100e, the user can adjust the working pressure inside negative pressure chamber 100e through negative pressure generating component when the anti-asphyxiation device is in ventilation mode. It is generally (-20KPA) to (-53KPA). In this way, when the anti-asphyxiation device switches from ventilation mode to negative pressure mode, the working pressure inside negative pressure chamber 100e can form an effective negative pressure more quickly and remove foreign objects in time.

[0065] Optionally, the mask 200 can be detachably connected to the connector 100. Specifically, it can be detachably connected by means such as rotation locking, magnetic buckle, or an inflatable sealing ring self-adaptive system. In this way, the mask 200 can be changed in size and type, thus expanding its applicability.

[0066] Optionally, the negative pressure generating component can be detachably connected to the connector 100. Specifically, the detachable connection can be achieved through a rotating locking mechanism, a self-locking quick-connect mechanism, or other similar structures. In this way, the anti-suffocation device can be divided into multiple parts, making it convenient to carry and transport, and also making it convenient to replace and repair the negative pressure generating component.

[0067] Understandably, since the second interface 100c is connected to the negative pressure generating component, in order to reduce the possibility that the negative pressure generating component may block the first connection port 100d which is connected to the outside atmosphere, the second interface 100c and the first connection port 100d are located on opposite sides of the first gas flow channel 100a. In this way, when installing the negative pressure generating component, the user does not need to consider the situation of the first connection port 100d, thus improving the speed of installation of the negative pressure generating component.

[0068] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0069] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An anti-suffocation device, characterized in that, include: A connector is formed with a first gas flow channel. The connector is also formed with a first interface, a second interface and a first connection port that communicate with the first gas flow channel. The first connection port is used to communicate with the outside atmosphere. The face mask is connected to the first interface; The negative pressure generating component is connected to the second interface; A valve core assembly is inserted into the first gas flow channel and is movable relative to the connector. The valve core assembly forms a second gas flow channel that communicates with the first gas flow channel. When the valve core assembly is movable relative to the connector, the second gas flow channel can selectively communicate with the second interface or with the first communication port.

2. The anti-asphyxia device according to claim 1, characterized in that The first gas flow channel includes a first channel and a second channel that are interconnected. The first interface is disposed on the first channel, and the second interface and the first communication port are disposed on the second channel. The valve core assembly is movably inserted into the second channel. The second channel has a connection port that communicates with the first channel. The first end of the valve core assembly forms a limiting member, which extends into the first channel. A limiting block is disposed in the first channel. Specifically, when the valve core assembly moves to the point where the limiting member abuts against the wall of the connection port, the second gas flow channel is connected to one of the second interface and the first communication port; when the valve core assembly moves to the point where the limiting member abuts against the limiting block, the second gas flow channel is connected to the second interface and the other of the first communication port.

3. The anti-asphyxia device according to claim 2, characterized in that The limiting component includes: ontology; A first sealing element is disposed on the side of the body facing the second channel. When the limiting element abuts against the wall surface of the connection port, the first sealing element is elastically pressed between the body and the wall surface of the connection port.

4. The anti-asphyxia device according to claim 2, characterized in that The axis of the first channel is set at an angle to the axis of the second channel.

5. The anti-asphyxia device according to claim 2, characterized in that The valve core assembly includes a valve stem and the limiting member, the limiting member being disposed at the end of the valve stem and detachably connected to the valve stem.

6. The anti-asphyxia device according to claim 1, characterized in that The valve core assembly includes a valve stem and two sets of second seals. The second gas flow channel includes a sub-flow channel. The two ends of the sub-flow channel form a second connection port and a third connection port. The second connection port is used to communicate with the second interface, and the third connection port is used to communicate with the first connection port. Along the extension direction of the valve stem, two sets of the second seals are respectively disposed on both sides of the sub-flow channel.

7. The anti-asphyxia device according to claim 1, characterized in that The valve core assembly includes a valve stem and an elastic element sleeved on the valve stem. The valve stem forms the second gas flow channel. The elastic element is located outside the first gas flow channel, and one end of the elastic element is connected to the valve stem, while the other end of the elastic element is connected to the connector.

8. The anti-asphyxia device according to claim 1, characterized in that The mask is detachably connected to the connector; And / or, the negative pressure generating component is detachably connected to the connector.

9. The anti-asphyxia device according to claim 1, characterized in that The connector also forms a negative pressure cavity, which is connected to the first gas flow channel, and the second interface is located on the side of the negative pressure cavity away from the first gas flow channel.

10. The anti-asphyxia device according to claim 1, characterized in that The second interface is located on the opposite side of the first gas flow passage from the first communication port.

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