CN117717686A - Joint for airway intubation and cardiopulmonary resuscitation device - Google Patents

Abstract

Embodiments of the present disclosure relate to a joint for an airway tube and cardiopulmonary resuscitation device. The joint includes: the main body comprises a containing cavity and at least two through holes communicated with the containing cavity; a control member at least partially disposed within the receiving cavity, the control member having at least: a first state corresponding to a compression operation of cardiopulmonary resuscitation, and a second state corresponding to a withdrawal of the compression operation of cardiopulmonary resuscitation; the control member is in a first state, and the control member constructs a first channel for transmitting respiratory gas to the lung of the patient between the at least one through hole and the airway tube; the control member is in a second state, the control member establishing a second passage between the at least one through hole and the airway tube for venting the respiratory exhaust. The control member is in the first state to construct the first channel without the second channel, so that the hemodynamic effect of a patient can be ensured, the discharge of pulmonary gas of the patient through the exhaust port is limited, and the hemodynamic effect of the patient in the cardiopulmonary resuscitation process can be further improved.

Description

Airway intubation connectors and cardiopulmonary resuscitation equipment

Technical field

The present application relates to the technical field of medical devices, and in particular to a connector for airway intubation and cardiopulmonary resuscitation equipment.

Background technique

Cardiopulmonary resuscitation (cardiopulmonary resuscitation, CPR) generally refers to the first aid measures taken when the patient's breathing and heartbeat arrest. The main operations of cardiopulmonary resuscitation include chest compressions and withdrawal of compressions, which are performed alternately and repeatedly. Among them, the compression operation corresponds to the compression phase of the chest during cardiopulmonary resuscitation, and the withdrawal of compression operation corresponds to the rebound phase of the chest during cardiopulmonary resuscitation. When the chest is pressed, the heart is pressurized to pump blood to maintain the required cerebral blood flow, but the lungs are also pressurized and exhausted, affecting the effectiveness of first aid.

Contents of the invention

In view of this, embodiments of the present disclosure provide an airway intubation connector and a cardiopulmonary resuscitation device to solve at least one problem existing in the background art.

A first embodiment of the present disclosure provides a joint for airway intubation, the joint including:

The main body includes an accommodation cavity and at least two through holes communicating with the accommodation cavity;

The control member is at least partially located in the accommodation cavity, and the control member at least has: a first state corresponding to the pressing operation of cardiopulmonary resuscitation, and a second state corresponding to the canceling pressing operation of cardiopulmonary resuscitation;

The control member is in the first state, and the control member establishes a first channel for transmitting respiratory gas to the patient's lungs between at least one of the through holes and the airway cannula;

The control member is in the second state, and the control member constructs a second channel for exhausting respiratory waste gas between at least one of the through holes and the airway cannula.

In some embodiments, the main body further includes: a first cavity and a second cavity connected to the accommodation cavity, the volumes of the first cavity and the second cavity are variable, and the third cavity A cavity is used to store the respiratory gas transmitted to the patient's lungs, the second cavity is used to store the respiratory waste gas, the first cavity and the second cavity are both connected with the The accommodation chambers are connected;

The control member is in the first state, and the control member also constructs a third channel for discharging respiratory gas in the second cavity between at least one of the through holes and the external environment;

The control member is in the second state, and the control member also constructs a fourth channel between at least one of the through holes and the respiratory gas source to replenish the respiratory gas to the first cavity, or, the The control member also constructs a fourth channel between at least one of the through holes and the external environment for replenishing the breathing gas to the first cavity.

In some embodiments, the plurality of vias include:

a first air inlet, a first air outlet, a second air inlet and a second air outlet;

Wherein, the first air inlet is used to communicate with the respiratory air source or the external environment, the first air outlet is connected with the air inlet channel of the airway intubation, and the second air inlet is connected with The air outlet channel of the airway intubation is connected, and the second air outlet is connected with the external environment;

The cavity wall of the first cavity has first via holes respectively connected with the accommodating cavity and the first cavity, and the cavity wall of the second cavity has a cavity wall connected with the accommodating cavity and the third cavity respectively. a second via hole connecting the two cavities;

The control member is in the first state, the control member conducts the first via hole and the first air outlet, and communicates with the second via hole and the second air outlet;

The control member is in the second state, the control member conducts the first via hole and the first air inlet, and communicates with the second via hole and the second air inlet.

In some embodiments, the controls include:

a control valve connected to the main body;

A valve core, which is movably located in the accommodation cavity under the control of the control valve;

The valve core includes a plurality of first parts distributed at intervals, and a second part located between two adjacent first parts. The first part is sealingly connected to the cavity wall of the accommodation cavity, and the second part is connected to the cavity wall. There is a ventilation interval between the cavity walls of the accommodation cavity to construct the ventilation channel.

In some embodiments, the control component further includes:

Elastic member, the two ends of the elastic member are respectively connected to the cavity wall of the accommodation cavity and the valve core;

The control valve is used to provide an acting force in a preset direction to the valve core, and the elastic member is used to provide an elastic restoring force to the valve core opposite to the preset direction. The preset reverse direction And the opposite direction of the preset direction is the moving direction of the valve core.

In some embodiments, the joint further includes: a first housing, a first piston and a second piston; the first housing is divided into two sub-spaces, and the first piston is located in one of the sub-spaces. inside to form the first cavity; the second piston is located in another sub-space to form the second cavity;;

The first piston and the second piston move synchronously with the compression operation or cancellation of the cardiopulmonary resuscitation operation.

In some embodiments, the joint further includes: a piston connecting rod, two ends of which are connected to the first piston and the second piston respectively.

In some embodiments, the joint further includes: a sealing member, the sealing member includes: a first sealing member sealingly connected with the first piston and the cavity wall of the first cavity respectively, and respectively with the first sealing member. A second sealing member is used for sealing connection between the second piston and the cavity wall of the second cavity.

In some embodiments, the subject includes:

A base having the accommodation cavity and a plurality of through holes;

A cylinder body is connected to the base, the cylinder body has the sub-space; the control member is located between the base and the cylinder body;

The connecting part is connected to the base, and the connecting part is detachably connected to the airway cannula.

In some embodiments, the tops of both subspaces have openings; the main body further includes: a second housing, the second housing is connected to the cylinder and covers the opening, The first piston and the second piston are both located between the second housing and the bottom wall of the corresponding subspace.

In some embodiments, the connector further includes:

Inner tube, the inner tube is connected to the connecting part and is at least partially inserted into the airway cannula. The inner tube defines an air inlet channel for breathing gas to pass through. The inner tube and the airway An air outlet channel is defined between the intubations for passage of respiratory waste gas.

A second embodiment of the present disclosure provides a cardiopulmonary resuscitation device, which includes: the connector of the airway intubation described in the first embodiment.

In the joint of the airway intubation provided by the embodiment of the present disclosure, the first channel constructed by using the control member in the first state can pass breathing gas into the patient's lungs during the compression operation of cardiopulmonary resuscitation, ensuring the patient's safety. Hemodynamic effect, thereby improving first aid effect. By utilizing the second channel constructed by the control part in the second state, the respiratory waste gas generated by the patient can be discharged when the compression operation of cardiopulmonary resuscitation is cancelled. Moreover, when the control part is in the first state, it is constructed with a first channel instead of a second channel, which can ensure the patient's hemodynamic effect while limiting the discharge of gas from the patient's lungs, which can further improve cardiopulmonary resuscitation. Hemodynamic effects on the patient during the procedure.

Additional aspects and advantages of the disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the disclosure.

Description of the drawings

The drawings described here are used to provide a further understanding of the embodiments of the present disclosure and constitute a part of the embodiments of the present disclosure. The schematic embodiments of the present disclosure and their descriptions are used to explain the present application and do not constitute an inappropriate representation of the embodiments of the present disclosure. limited. In the attached picture:

Figure 1 shows a schematic structural diagram of an airway intubation;

Figure 2 shows a cross-sectional view of a connector of an airway tube in some alternative embodiments of the present disclosure;

Figure 3 shows a partial structural schematic diagram of the intubation assembly formed by assembling the joint in Figure 2 and the airway intubation in Figure 1;

Figure 4 shows a cross-sectional view of the intubation assembly formed by assembling the joint in Figure 2 and the airway intubation in Figure 1 when the control part is in the first state;

Figure 5 shows an enlarged view of position A in Figure 4;

Figure 6 shows a partial structural cross-sectional view of the intubation assembly when the control member in Figure 3 is in the second state;

Figure 7 shows a cross-sectional view of a joint of an airway tube in the embodiment of the present disclosure that is different from that shown in Figure 2;

Figure 8 shows a partial structural schematic diagram of the intubation assembly formed after the joint in Figure 7 is assembled with the airway intubation in Figure 1;

Figure 9 shows a cross-sectional view of the intubation assembly formed after the connector in Figure 7 is assembled with the airway intubation in Figure 1, when the control part is in the first state;

Figure 10 shows an enlarged view of B in Figure 9;

Fig. 11 shows a partial structural cross-sectional view of the cannula assembly when the control member in Fig. 7 is in the second state.

Reference signs:

10. Airway intubation;

100. Joint; 101. First air inlet; 102. First air outlet; 103. Second air inlet; 104. Second air outlet; 110. Main body; 111. Base; 111a, accommodation chamber; 112. Cylinder body; 112a, first cavity; 112b, second cavity; 112c, first via hole; 112d, second via hole; 113, second shell; 114, connecting portion; 115, inner tube; 115a, inlet Air channel; 115b, air outlet channel; 116, first housing; 117, subspace; 121, first piston; 122, second piston; 130, control piece; 131, control valve; 132, valve core; 133, third One part; 134, the second part; 150, elastic member; 160, piston connecting rod; 170, seal.

Detailed ways

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the embodiments of the present disclosure may be implemented in various forms and should not be limited to the specific embodiments set forth herein. Rather, these embodiments are provided to provide a thorough understanding, and to fully convey the scope of the disclosed embodiments to those skilled in the art.

In the following description, numerous specific details are given in order to provide a thorough understanding of the disclosed embodiments. However, it will be apparent to one skilled in the art that embodiments of the present disclosure may be practiced without one or more of these details. In other examples, in order to avoid confusion with the embodiments of the present disclosure, some technical features well known in the art are not described; that is, all features of the actual embodiments are not described here, and well-known functions and structures are not described in detail.

In the drawings, spatial relationship terms such as “under”, “under”, “below”, “under”, “on”, “above”, etc., are used in It may be used herein for convenience of description to describe the relationship of one element or feature to other elements or features shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, then elements or features described as "below" or "under" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary terms "below" and "under" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatial descriptors used herein interpreted accordingly.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of embodiments of the disclosure. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the terms "consisting of" and/or "comprising", when used in this specification, identify the presence of stated features, integers, steps, operations, elements and/or parts but do not exclude one or more others The presence or addition of features, integers, steps, operations, elements, parts, and/or groups. When used herein, the term "and/or" includes any and all combinations of the associated listed items.

In order to fully understand the embodiments of the present disclosure, detailed steps and detailed structures will be provided in the following description to explain the technical solutions of the embodiments of the present disclosure. Preferred embodiments of the embodiments of the present disclosure are described in detail below. However, in addition to these detailed descriptions, the embodiments of the present disclosure may also have other implementations.

Figure 1 exemplarily shows a schematic structural diagram of an airway intubation tube 10. The connector 100 of the airway cannula 10 according to the embodiment of the present disclosure can be used in conjunction with the airway cannula 10 shown in FIG. 1 . Taking the connector 100 of the middle airway intubation tube 10 shown in FIG. 2 as an example, when cardiopulmonary resuscitation is required for the patient, the connector 100 shown in FIG. 2 can be connected to the airway intubation tube 10 shown in FIG. The intubation assembly shown in Figures 3 and 4 is inserted into the patient's airway for use. After cardiopulmonary resuscitation is successful, for example, after the patient's heartbeat resumes, the connector 100 can be separated from the airway cannula 10 , the airway cannula 10 remains in the patient's body, and the airway cannula 10 can be connected to the ventilator. If the patient does not need a ventilator, the entire intubation assembly can be removed from the patient's airway.

As shown in Figures 5, 6, 10 and 11, an embodiment of the present disclosure provides a connector 100 for an airway cannula 10. The connector 100 includes a main body 110 and a control member 130. The main body 110 includes a receiving chamber. 111a. At least two through holes communicating with the accommodation cavity 111a; the control member 130 is at least partially located in the accommodation cavity 111a. The control member 130 at least has: a first state corresponding to the pressing operation of cardiopulmonary resuscitation, and the cancellation of cardiopulmonary resuscitation. The second state corresponding to the pressing operation; as shown in Figures 5 and 10, the control member 130 is in the first state, and the control member 130 establishes a third method for transmitting respiratory gas to the patient's lungs between at least one through hole and the airway cannula 10. A channel; as shown in FIGS. 6 and 11 , the control member 130 is in the second state, and the control member 130 constructs a second channel for exhausting respiratory waste gas between at least one through hole and the airway cannula 10 .

The first state and the second state of the control member 130 are two states at different times. When the control part 130 is in the first state, the first channel is built without the second channel; when the control part 130 is in the second state, the second channel is built without the first channel.

When the control part 130 is in the first state, it can pass breathing gas into the patient's lungs during the compression operation of cardiopulmonary resuscitation and prevent the outflow of lung gas, thereby assisting in maintaining positive pressure in the chest and lungs throughout the compression operation. On the basis of increasing the forward blood flow and flow time, it provides oxygen to tissues and organs; at the same time, it reduces the transpulmonary pressure during the compression operation, reduces the probability of alveolar damage, ensures the patient's hemodynamic effect, and thereby improves the first aid effect. When the control part 130 is in the second state, it can allow the respiratory waste gas generated in the lungs to flow out when the compression operation of cardiopulmonary resuscitation is cancelled, and prevent the respiratory gas from entering the lungs, and assist in maintaining the pressure in the chest and lungs during the full rebound period of the chest cavity. Pressure, on the basis of assisting to increase venous return, extracts carbon dioxide from the body into the second cavity, improving the success rate of cardiopulmonary resuscitation.

In the embodiment of the present disclosure, the respiratory gas is a gas containing oxygen, and the respiratory exhaust gas is a gas containing carbon dioxide exhaled by the patient's lungs.

The pressing operation can be manual pressing or mechanical pressing with the help of a reciprocating device.

The accommodating cavity 111a can be used to accommodate the control member 130, and can also be used as a component of the first channel and the second channel to achieve multiple uses in one cavity. This structure is conducive to reducing the volume of the connector 100, thereby reducing the number of connectors during cardiopulmonary resuscitation. 100 Interference with other devices. Other equipment includes, but is not limited to, defibrillators.

The through hole corresponding to the first channel constructed by the control member 130 is different from the through hole corresponding to the second channel constructed.

One depression and one rebound of the chest is recorded as one cardiopulmonary resuscitation frequency. Usually, the cardiopulmonary resuscitation frequency is 100-120 times/minute. The control member 130 switches from the second state to the first state when the chest cavity is depressed once, and the control member 130 switches from the first state to the second state again when the chest cavity rebounds. Therefore, the frequency of one cardiopulmonary resuscitation corresponds to Two state switches of the control part 130.

As shown in Figures 5, 6, 10 and 11, according to some optional embodiments, the main body 110 further includes: a first cavity 112a and a second cavity 112b connected to the accommodation cavity 111a. The first cavity 112a and the second cavity 112b have a variable volume, and the difference between the maximum volumes of the first cavity and the second cavity is less than or equal to a preset value, the first cavity 112a is used to store and transmit data to the patient's lungs. of respiratory gas, the second cavity 112b is used to store respiratory exhaust gas, the first cavity 112a and the second cavity 112b are both connected to the accommodation cavity 111a; as shown in Figures 5 and 10, the control member 130 is in the first state, The control member 130 also constructs a third channel for discharging the breathing gas in the second cavity 112b between at least one through hole and the external environment; as shown in FIGS. 6 and 11 , the control member 130 is in the second state, and the control member 130 also A fourth channel for replenishing respiratory gas to the first cavity 112a is constructed between at least one through hole and the respiratory gas source.

In the embodiment of the present disclosure, the respiratory gas source includes a bottle body and oxygen-containing gas located in the bottle body.

In some embodiments, the control member 130 may construct a fourth channel between the at least one through hole and the external environment that replenishes the first cavity 112a with breathing gas. The gas in the external environment also contains oxygen, so the gas in the external environment can also be used as a breathing gas.

The default value can be 0 or a value close to 0. When the preset value is 0, it indicates that the volume of the first cavity 112a and the volume of the second cavity 112b are equal. The volume difference between the first cavity 112a and the second cavity 112b is less than or equal to the preset value, indicating that the volumes of the first cavity 112a and the second cavity 112b are equal or substantially equal.

When the control member 130 is in the first state, the breathing gas introduced into the patient's lungs comes from the first cavity 112a, and the breathing gas in the first cavity 112a is the breathing gas from the outside when the control member 130 was in the first state last time. The respiratory air source enters the first cavity 112a through the fourth channel for replenishment. When the control member 130 is in the second state, the respiratory exhaust gas discharged from the patient's lungs first enters the second cavity 112b through the second channel and is stored, and then the next time the control member 130 enters the first state, the respiratory exhaust gas in the second cavity 112b is The respiratory exhaust gas is discharged to the external environment through the third channel. Since the volumes of the first cavity 112a and the second cavity 112b are equal or substantially equal, the amount of respiratory gas stored in the first cavity 112a can be made equal or substantially equal to the amount of respiratory exhaust gas stored in the second cavity 112b. , and then the respiratory gas leading to the patient's lungs maintains a balance with the exhaled respiratory waste gas, effectively ensuring the safety of the patient's lungs and reducing the potential for lung damage such as alveolar rupture due to pressure imbalance or high pressure in the patient's lungs.

When the compression operation of cardiopulmonary resuscitation is performed, the volume of the first cavity 112a gradually increases to the maximum volume to store respiratory gas, and the volume of the second space 112b also gradually increases to the maximum volume to store the respiratory exhaust gas discharged by the patient. It can be understood that the maximum volume of the first cavity 112a is generally equal to the maximum amount of gas that the patient can inhale. The maximum volume of the second cavity 112b is equal to the maximum amount of gas that the patient can exhale. When performing a compression operation, the volume of the first cavity 112a can be gradually reduced to release respiratory gas to the patient's lungs, and similarly, the volume of the second cavity 112b can be gradually reduced to release respiratory waste gas to the external environment.

As shown in Figures 5, 6, 10 and 11, according to some optional embodiments, the plurality of through holes include: a first air inlet 101, a first air outlet 102, a second air inlet 103 and The second air outlet 104; wherein, the first air inlet 101 is used to communicate with the respiratory air source, the first air outlet 102 is connected to the air inlet channel 115a of the airway cannula 10, and the second air inlet 103 is connected to the airway cannula 10. The air outlet channel 115b of 10 is connected, and the second air outlet 104 is connected with the external environment; the cavity wall of the first cavity 112a has a first through hole 112c that is connected with the accommodation cavity 111a and the first cavity 112a respectively, and the second cavity 112b The cavity wall has second through holes 112d that are respectively connected with the accommodation cavity 111a and the second cavity 112b.

Optionally, if the breathing gas originates from the external environment, the first air inlet 101 can also be used to communicate with the external environment.

The embodiment of the present disclosure does not use a respiratory air source to directly provide respiratory gas to the patient's lungs. Instead, the respiratory gas from the respiratory air source is first introduced into the first cavity 112a, and then passed into the patient's lungs through the first cavity 112a. Such a structure of the joint 100 can better control the amount of gas that passes into the patient's lungs, which can not only reduce the impact of insufficient air volume on the first aid effect, but also reduce the problem of damage to the patient's lungs due to a large amount of air.

Referring to Figures 5, 6, 10 and 11, the arrows indicate the flow direction of the gas. The working process of the disclosed connector 100 is described below by taking one set of compression operations and compression cancellation operations in cardiopulmonary resuscitation as an example. It can be understood that the processes of all compression operations and compression cancellation operations in cardiopulmonary resuscitation are the same:

Without limitation, before cardiopulmonary resuscitation is performed, that is, in the initial state, the control member 130 can be in the second state to introduce respiratory gas into the first cavity 112a. At this time, there is no respiratory exhaust gas in the second cavity 112b. .

When a compression operation is performed on the patient's chest for the first time, the control member 130 transitions from the second state to the first state, and remains in the first state before the compression operation is cancelled. At this time, the control member 130 conducts the first through hole 112c and the first air outlet 102 to build a first channel between the first cavity 112a and the first air outlet 102. The breathing gas stored in the first cavity 112a It enters the accommodating cavity 111a through the first through hole 112c, then enters the airway intubation tube 10 through the first air outlet 102 from the accommodating cavity 111a, and finally enters the patient's lungs to achieve ventilation. At the same time, the control member 130 also communicates with the second through hole 112d and the second air outlet 104 to build a third channel between the second cavity 112b and the second air outlet 104. The gas in the second cavity 112b can It enters the accommodation cavity 111a through the second through hole 112d, and then enters the external environment from the accommodation cavity 111a through the second air outlet 104 to exhaust the second cavity 112b.

When the first pressing operation is canceled, the control member 130 transitions from the first state to the second state, and remains in the second state before the next pressing operation. At this time, the control member 130 connects the first through hole 112c and the first air inlet 101 to build a fourth channel between the first cavity 112a and the first air inlet 101, and the breathing gas in the external breathing gas source It can enter the accommodating cavity 111a through the first air inlet 101, and then enter the first cavity 112a through the accommodating cavity 111a, so as to supplement the breathing gas into the first cavity 112a. At the same time, the control member 130 also communicates with the second through hole 112d and the second air inlet 103 to build a second channel between the second cavity 112b and the second air inlet 103. The respiratory exhaust gas exhaled by the patient passes through the air. The cannula 10 enters the second air inlet 103, and then enters the second cavity 112b through the second air inlet 103 through the accommodation cavity 111a to achieve exhaust of the patient's lungs. If the patient's chest is compressed for the second time, the control member 130 in the first state can use the third channel to discharge the respiratory waste gas stored in the second cavity 112b to the external environment.

As shown in Figures 5, 6, 10 and 11, according to some optional embodiments, the control member 130 includes: a control valve 131 and a valve core 132. The control valve 131 is connected to the main body 110; the valve core 132 controls The valve 131 is movably located in the accommodation cavity 111a under control; the valve core 132 includes a plurality of first parts 133 distributed at intervals, and a second part 134 located between two adjacent first parts 133. The first part 133 is in contact with the accommodation cavity 111a. The cavity wall is sealed and connected, and there is a ventilation gap between the second part 134 and the cavity wall of the accommodation cavity 111a to construct a ventilation channel.

The control valve 131 can at least provide a driving force to drive the valve core 132 to move. The control member 130 can be switched between the first state and the second state by using the valve core 132 to move in different positions.

Without limitation, the control valve 131 is a solenoid valve, and the valve core 132 may include a connecting rod. The part with a larger outer diameter of the connecting rod may be used as the first part 133, the part with a smaller outer diameter may be used as the second part 134, and the part with a larger outer diameter may be used as the first part 133. The first part 133 can be interference-fitted with the wall of the accommodation cavity 111a to achieve sealing.

Gases such as respiratory gas or respiratory exhaust gas may flow between the corresponding through holes and corresponding via holes (including the first via hole 112c and the second via hole 112d) through the ventilation intervals.

As shown in Figures 5, 6, 10 and 11, according to some optional embodiments, the control member 130 also includes: an elastic member 150. Both ends of the elastic member 150 are respectively connected with the cavity wall and the valve of the accommodation cavity 111a. The core 132 is connected; the control valve 131 is used to provide the valve core 132 with a force in the preset direction, and the elastic member 150 is used to provide the valve core 132 with an elastic restoring force opposite to the preset direction, the preset reverse and the preset direction. The opposite direction of is the moving direction of the valve core 132.

Without limitation, as shown in FIG. 5 and FIG. 10 , in the initial state, the control member 130 is in the first state, and the elastic member 150 is not deformed at this time. After the control valve 131 provides the driving force to drive the valve core 132 to move in a preset direction, the elastic member 150 generates elastic deformation and stores elastic restoring force. After the control valve 131 cancels the driving force, the valve core 132 can return to the initial state under the elastic restoring force of the elastic member 150 .

It can be understood that if the joint 100 is not provided with the elastic member 150, the control valve 131 needs to simultaneously provide the driving force for the valve core 132 to move in the preset direction, and the driving force for the valve core 132 to move in the opposite direction to the preset direction. .

As shown in Figures 2, 4, 5, 6, 7, and Figures 9 to 11, according to some optional embodiments, the joint 100 further includes: a first housing 116, a first piston 121 and a second Piston 122; the first housing 116 is divided into two subspaces 117 (distinguished by A and B respectively in Figures 5, 6 and 11, namely 117(A) and 117(B)), in which the first piston 121 is located In one subspace 117(A), the first piston 121 and the inner wall of the subspace 117(A) together form a first cavity 112a; the second piston 122 is located in another subspace 117(B), and the second piston 122 Together with the inner wall of the subspace 117(B), the second cavity 112b is formed; the first piston 121 and the second piston 122 move synchronously with the compression operation or cancellation of the cardiopulmonary resuscitation operation.

The use of the first piston 121 and the second piston 122 can improve the control of the gas in the corresponding cavity and control the gas amount more accurately.

The power for moving the first piston 121 and the second piston 122 comes from the driving force provided by the electric driving mechanism.

Utilizing the movable function of the first piston 121, the maximum volume of the first cavity 112a can be adjusted without changing the volume of the subspace 117; for example: if the current maximum volume of the first cavity 112a is C1, the The maximum distance between a piston 121 and the bottom wall of the subspace is H1. If it is necessary to increase the maximum volume of the first cavity 112a to C2, C2>C1, then the maximum distance between the first piston 121 and the bottom wall of the subspace 117 can be adjusted to H2, H2>H1, as shown in Figure 5 and Figure 10. For example, move the first piston 121 upward. On the contrary, if it is necessary to reduce the maximum volume C1 of the first cavity 112a, H1 can be reduced. Similarly, by utilizing the movable function of the second piston 122, the maximum volume of the second cavity 112b can be adjusted. The adjustable maximum volumes of the first cavity 112a and the second cavity 112b can adapt to the needs of different patients and improve the applicable range of the joint 100.

In addition to using the first piston 121 to move along the inner wall of the first cavity 112a to realize the variable volume of the first cavity 112a, or using the second piston 122 to move along the inner wall of the second cavity 112b to realize the variable volume of the second cavity 112b. In addition, the volumes of the first cavity 112a and the second cavity 112b can also be made variable through other methods. Taking the variable volume of the first cavity 112a as an example: the cavity wall forming the first cavity 112a is made of flexible material or elastic material, and the cavity wall of the first cavity 112a is connected with a lifting component that can be raised and lowered. When the control member 130 is in the first state, the gravity of the lifting assembly or the driving force provided by a power mechanism (such as a motor or a cylinder) can be used to compress and deform the cavity wall of the first cavity 112a, thereby removing the breath in the first cavity 112a. The gas is discharged from the first cavity 112a, and the volume of the first cavity 112a gradually becomes smaller. The control member 130 is in the second state, and the lifting assembly can be lifted up using breathing gas and filled with the first cavity 112a. The cavity wall of the first cavity 112a is deformed again, and the volume of the first cavity 112a gradually increases.

As shown in Figures 8, 9 to 11, according to some optional embodiments, the joint 100 further includes: a piston connecting rod 160, and both ends of the piston connecting rod 160 are connected to the first piston 121 and the second piston 122 respectively.

The piston connecting rod 160 can improve the synchronization of movement of the first piston 121 and the second piston 122 .

It can be understood that the two piston connecting rods 160 respectively connected to the first piston 121 and the second piston 122 can also be independent, and the two piston connecting rods 160 can be controlled synchronously respectively to realize the movement of the first piston 121 and the second piston 122 . The two pistons 122 move synchronously. Alternatively, as shown in FIGS. 2 , 4 and 5 , the piston connecting rod 160 may not be provided.

As shown in Figures 5, 6, 10 and 11, according to some optional embodiments, the joint 100 further includes: a seal 170, the seal 170 includes: respectively connected with the first piston 121 and the first cavity 112a The first sealing member 170 is sealingly connected to the cavity wall, and the second sealing member 170 is sealingly connected to the cavity wall of the second piston 122 and the second cavity 112b respectively.

The first sealing member 170 is used to ensure the sealing of the first cavity 112a, and the second sealing member 170 is used to ensure the sealing of the second cavity 112b, thereby ensuring the ventilation and exhaust effects.

As shown in Figures 5, 6, 10 and 11, according to some optional embodiments, the main body 110 includes: a base 111, a cylinder 112 and a connecting portion 114. The base 111 has a receiving cavity 111a and a plurality of through holes; The cylinder 112 is connected to the base 111, and the cylinder 112 has a sub-space 117; the control part 130 is located between the base 111 and the cylinder 112; the connecting part 114 is connected to the base 111, and the connecting part 114 is detachably connected to the airway intubation tube 10 .

The connecting portion 114 can be used to facilitate the connection or separation of the connector 100 and the airway tube 10 .

As shown in Figure 5, Figure 6, Figure 10 and Figure 11, according to some optional embodiments, the tops of the two sub-spaces 117 both have openings; the main body 110 also includes: a second housing 113, and the second housing 113 is connected In the cylinder 112 , the first piston 121 and the second piston 122 are located between the second housing 113 and the bottom wall of the corresponding subspace 117 . The second housing 113 covers the opening to reduce dust, liquid and other dirt from the external environment from entering the sub-space 117, thereby reducing the impact of dirt on the smooth movement of the first piston 121 and the second piston 122.

5, 6, 10 and 11 exemplarily show that the connecting part 114 is tubular, and the connecting part 114 can be sleeved outside the airway cannula 10 to facilitate the connection between the connecting part 114 and the airway cannula 10. Connect or detach.

As shown in Figures 2, 4, 5, 6, 7, and Figures 9 to 11, according to some optional embodiments, the joint 100 further includes: an inner tube 115, and the inner tube 115 is connected to the connecting portion 114, And is at least partially inserted into the airway cannula 10. The inner tube 115 defines an inlet channel 115a for respiratory gas to pass through, and an outlet channel 115b for respiratory waste gas to pass is defined between the inner tube 115 and the airway cannula 10.

The inner tube 115 divides the space inside the airway intubation 10 into an air inlet channel 115a for respiratory gas to pass through, and an air outlet channel 115b for respiratory exhaust gas to pass through, so that the respiratory gas and respiratory exhaust gas are transmitted through two different channels respectively, which is convenient Separate control of the respiratory body delivered to the lungs and the respiratory exhaust gas discharged from the lungs makes it easier to deliver respiratory gas to the lungs, instead of causing the respiratory gas to be lost before it enters the lungs because the respiratory gas and respiratory exhaust gas share the same channel. is drawn away, improving the ventilation effect. Moreover, the two channels are also helpful to reduce the risk of respiratory gas being contaminated due to respiratory exhaust gas and respiratory gas sharing the same channel, causing the patient's lung infection.

An embodiment of the present disclosure also provides a cardiopulmonary resuscitation device. The cardiopulmonary resuscitation device includes: the connector 100 of the airway intubation 10 described in the above embodiment.

In some optional embodiments, the cardiopulmonary resuscitation equipment also includes a sensor. The sensor is used to: detect the pressing operation and/or cancel the pressing operation to obtain detection information. The control part 130 can be adjusted to the first state or the second state according to the detection information.

For example: if the detection information indicates that the current operation is to cancel the pressing operation, the control valve 131 of the control member 130 will cancel the driving force provided to the valve core 132. Under the action of the elastic member 150, the valve core 132 moves, and the control member 130 switches to the third position. Two states; if the detection information indicates that the current operation is a pressing operation, the control valve 131 of the control member 130 provides driving force to the valve core 132, and the control member 130 switches to the first state.

On the premise that there is no conflict, different embodiments of the present disclosure or different technical features can be combined arbitrarily to form new embodiments.

It should be understood that the above embodiments are exemplary and are not intended to include all possible implementations included in the claims. Various modifications and changes can also be made on the basis of the above embodiments without departing from the scope of the present disclosure. Similarly, various technical features of the above embodiments may also be combined arbitrarily to form additional embodiments that may not be explicitly described. Therefore, the above embodiments only express several implementation modes of the present disclosure and do not limit the scope of protection of the patent of the present disclosure.

Claims (12)

1. A connector for an airway tube, the connector comprising:

the main body comprises a containing cavity and at least two through holes communicated with the containing cavity;

a control member at least partially within the receiving chamber, the control member having at least: a first state corresponding to a compression operation of cardiopulmonary resuscitation, and a second state corresponding to a withdrawal compression operation of the cardiopulmonary resuscitation;

the control member is in the first state, and the control member constructs a first channel for transmitting respiratory gas to the lung of the patient between at least one through hole and the airway tube;

the control member is in the second state, and the control member establishes a second channel between at least one of the through holes and the airway tube for exhausting respiratory exhaust gases.

2. The fitting according to claim 1, wherein said body further comprises: a first cavity and a second cavity in communication with the containment cavity, the volumes of the first cavity and the second cavity being variable, the first cavity being for storing the respiratory gases for delivery to the lungs of the patient, the second cavity being for storing the respiratory exhaust gases, the first cavity and the second cavity both in communication with the containment cavity;

the control member is in the first state, and a third channel for discharging the breathing gas in the second cavity is further formed between at least one through hole and the external environment;

the control member is in the second state, and the control member also constructs a fourth channel for supplementing the breathing gas to the first cavity between at least one through hole and a breathing gas source, or constructs a fourth channel for supplementing the breathing gas to the first cavity between at least one through hole and the external environment.

3. The fitting according to claim 2, wherein a plurality of said through holes comprises:

the device comprises a first air inlet, a first air outlet, a second air inlet and a second air outlet;

the first air inlet is used for communicating the respiratory air source or the external environment, the first air outlet is communicated with the air inlet channel of the airway cannula, the second air inlet is communicated with the air outlet channel of the airway cannula, and the second air outlet is communicated with the external environment;

the cavity wall of the first cavity is provided with a first via hole communicated with the accommodating cavity and the first cavity respectively, and the cavity wall of the second cavity is provided with a second via hole communicated with the accommodating cavity and the second cavity respectively;

the control piece is in the first state, the control piece conducts the first through hole and the first air outlet and communicates the second through hole and the second air outlet;

the control piece is in the second state, and the control piece conducts the first through hole and the first air inlet and is communicated with the second through hole and the second air inlet.

4. A joint according to any one of claims 1 to 3, wherein the control member comprises:

a control valve connected to the main body;

the valve core is movably positioned in the accommodating cavity under the control of the control valve;

the valve core comprises a plurality of first parts and a second part, wherein the first parts are distributed at intervals, the second parts are positioned between two adjacent first parts, the first parts are in sealing connection with the cavity wall of the accommodating cavity, and ventilation intervals are arranged between the second parts and the cavity wall of the accommodating cavity so as to construct the ventilation channel.

5. The fitting according to claim 4, wherein said control member further comprises:

the two ends of the elastic piece are respectively connected with the cavity wall of the accommodating cavity and the valve core;

the control valve is used for providing acting force along a preset direction for the valve core, the elastic piece is used for providing elastic restoring force opposite to the preset direction for the valve core, and the preset reverse direction and the reverse direction of the preset direction are the moving direction of the valve core.

6. A joint according to claim 2 or 3, wherein the joint further comprises: a first housing, a first piston, and a second piston; the first housing is divided into two subspaces, and the first piston is positioned in one subspace to form the first cavity; said second piston being located within the other of said subspaces to form said second cavity;

the first piston and the second piston synchronously move along with the pressing operation or the withdrawal of the pressing operation of the cardiopulmonary resuscitation.

7. The fitting according to claim 6, wherein said fitting further comprises: and two ends of the piston connecting rod are respectively connected with the first piston and the second piston.

8. The fitting according to claim 6, wherein said fitting further comprises: a seal, the seal comprising: a first seal member sealingly connected to the first piston and the cavity wall of the first cavity, respectively, and a second seal member sealingly connected to the second piston and the cavity wall of the second cavity, respectively.

9. The fitting according to claim 6, wherein said body comprises:

a base having the accommodation chamber, and a plurality of the through holes;

a cylinder connected to the base, the cylinder having the subspace; the control piece is positioned between the base and the cylinder body;

and the connecting part is connected with the base and detachably connected with the airway intubation.

10. The fitting of claim 9 wherein the top of both of said subspaces has an opening; the body further comprises: the second shell is connected with the cylinder body and covers the opening, and the first piston and the second piston are located between the second shell and the bottom wall of the corresponding subspace.

11. The fitting according to claim 10, wherein said fitting further comprises:

the inner tube is connected to the connecting part and is at least partially inserted into the airway tube, the inner tube defines an air inlet channel for respiratory gas to pass through, and an air outlet channel for respiratory waste gas to pass through is defined between the inner tube and the airway tube.

12. A cardiopulmonary resuscitation device, the cardiopulmonary resuscitation device comprising: a joint for an airway tube as claimed in any one of claims 1 to 11.