Controllable subglottic suction connector

Abstract

The utility model provides a controllable subglottic suction connector. The controllable subglottic suction connector comprises a connecting body, a first sealing piece and a second sealing piece. The connecting body is provided with a first connecting end, a second connecting end and a third connecting end which are communicated with one another. The first sealing piece is movably installed at the second connecting end so as to control the second connecting end to be opened or closed. The second sealing piece is movably installed at the third connecting end so as to control the third connecting end to be opened or closed. The controllable subglottic suction connector at least has the following advantages that operation is flexible and convenient, pressure relief is sufficient, and the injury risk of respiratory tract mucosa of a patient is reduced; 2, the sputum suction device and the subglottic suction tube do not need to be repeatedly pulled and inserted for many times, and cross infection caused by sputum secretions and generated aerosol can be effectively avoided; and 3, the design structure is simple, materials are convenient to take, the operation is convenient, and the manufacturing cost and the use cost are low. And 4, the thumb is not in direct contact with sputum in the connecting body, so that the risk of occupational exposure of nurses is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to subglottic suction technical field, in particular to a controllable subglottic suction connector. BACKGROUND

[0002] Ventilator-associated pneumonia (VAP) is the most common and important complication of mechanical ventilation closely related to patient mortality. In recent years, scholars have found that incomplete cleaning of subglottic secretions is a risk factor for VAP in ICU mechanical ventilation patients. Therefore, it is proposed that placing a subglottic suction catheter for drainage can help prevent VAP, that is, by using a drainage tube attached to the inner wall of the air sac catheter, intermittent or continuous negative pressure drainage of the retained material on the air sac is performed, but the above-mentioned subglottic suction method has caused tracheal mucosa damage during clinical operation.

[0003] Currently, subglottic suction in clinical practice requires connecting the subglottic suction tube to the negative pressure suction device, and releasing the negative pressure by disconnecting the connection between the subglottic suction tube and the negative pressure suction tube after suction is complete. The standard negative pressure suction time in clinical practice should be less than 15 seconds. The disadvantages of the above operation method are as follows: first, the subglottic secretions need to be repeatedly sucked clean, which is complicated and easy to pull the subglottic suction tube, causing discomfort to the patient; second, the secretions or aerosols containing bacteria sucked out of the suction end during disconnection can easily cause cross contamination; third, the sealing plug of the subglottic suction tube of the current suction type tracheostomy tube is easily detached and lost under repeated pulling, and there is no matching sealing plug. After the sealing plug is detached, the subglottic suction tube is in an exposed state, which allows air to communicate with the airway, thereby increasing the risk of complications. SUMMARY

[0004] Therefore, it is necessary to provide a controllable subglottic suction connector to solve the above problems.

[0005] The technical scheme is as follows:

[0006] On the one hand, a controllable subglottic suction connector is provided, comprising:

[0007] A connecting body is provided with a first connecting end, a second connecting end and a third connecting end in communication with each other; the first connecting end is used to communicate with the subglottic suction tube, and the second connecting end is used to communicate with the sputum suction device;

[0008] A first sealing member is movably installed on the second connecting end to control the opening or closing of the second connecting end; and

[0009] A second sealing member is movably installed on the third connecting end to control the opening or closing of the third connecting end.

[0010] The controllable subglottic suction connector in the above embodiment is used as follows: first, the first connecting end is communicated with the subglottic suction tube inserted into the trachea of the patient; then, the first sealing member is removed from the second connecting end to open the second connecting end, and the second connecting end is communicated with the sputum suction device; finally, the second sealing member is removed from the third connecting end to open the third connecting end, and the negative pressure during sputum suction is controlled by controlling the movement of the thumb to realize subglottic suction. When the subglottic suction is completed, the second connecting end is detached from the sputum suction device, the first sealing member is moved back to the second connecting end to close the second connecting end, the second sealing member is moved back to the third connecting end to close the third connecting end, so that the controllable subglottic suction connector seals the subglottic suction tube, ensures that the subglottic suction tube is not in an exposed state, and air and the respiratory tract are not communicated, thereby reducing the risk of complications. The controllable subglottic suction connector in the present application has at least the following advantages: 1. The negative pressure during sputum suction is controlled by controlling the movement of the thumb, which is convenient to operate, fully releases the pressure, reduces the risk of damage to the respiratory mucosa of the patient, and greatly improves safety, practicality and comfort. 2. During use, the mode of subglottic suction in the prior art is changed, and the sputum suction device and the subglottic suction tube do not need to be repeatedly inserted and extracted, which can effectively avoid cross infection caused by sputum secretions and generated aerosols while ensuring the suction effect. 3. The controllable subglottic suction connector has a simple design structure, is easy to obtain materials, and is convenient to operate, and has low manufacturing and using costs. 4. The sputum in the subglottic suction tube enters the sputum suction device through the first connecting end and the second connecting end, and the thumb contacts the third connecting end for control, that is, the thumb does not directly contact the sputum in the connecting body, which greatly reduces the risk of occupational exposure of nurses.

[0011] The technical solutions are further described as follows:

[0012] In one of the embodiments, the controllable subglottic suction connector further comprises a connecting hose, one end of the connecting hose being communicated with the first connecting end, and the other end being used to communicate with the subglottic suction tube.

[0013] In one of the embodiments, the connecting hose is configured to be cut to a preset length when the connecting hose is communicated with the subglottic suction tube.

[0014] In one of the embodiments, the preset length is in the range of 2 cm to 3 cm.

[0015] In one of the embodiments, the connecting body comprises a sputum suction tube and a control tube, two ends of the sputum suction tube being respectively provided as the first connecting end and the second connecting end, one end of the control tube being communicated with the sputum suction tube, and the other end being provided as the third connecting end.

[0016] In one of the embodiments, the outer side wall of the third connecting end is provided with a flange extending along the radial direction of the third connecting end, and the flange is away from the side surface of the sputum suction tube and located in the same plane as the end surface of the third connecting end.

[0017] In one of the embodiments, the outer side wall of the flange comprises two circular arc surfaces symmetrically arranged about the axis of the third connecting end, and two connecting surfaces arranged in parallel with the extending direction of the sputum suction tube, and the two circular arc surfaces are connected with the two connecting surfaces correspondingly.

[0018] In one of the embodiments, the controllable subglottic suction connector further comprises a flexible connecting member, one end of the flexible connecting member is connected with the control tube, and the other end of the flexible connecting member is connected with the second sealing member.

[0019] In one of the embodiments, the sputum suction tube, the control tube, the flexible connecting member and the second sealing member are integrally formed.

[0020] In one of the embodiments, the first sealing member is arranged as a sealing cover. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which form a part of the present application, are intended to provide further understanding of the present application, and are used to interpret the present application together with its description. The accompanying drawings are not intended to limit the present application in any way.

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0023] Figure 1 FIG. 1 is a structural schematic diagram of a controllable subglottic suction connector according to one of the embodiments.

[0024] FIG. 1 is a structural schematic diagram of a controllable subglottic suction connector according to one of the embodiments.

[0025] 10, controllable subglottic suction connector; 100, connecting body; 110, sputum suction tube; 111, first connecting end; 112, second connecting end; 120, control tube; 121, third connecting end; 200, first sealing member; 300, second sealing member; 400, connecting hose; 500, flexible connecting member. DETAILED DESCRIPTION

[0026] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0027] like Figure 1 As shown, in one embodiment, a controllable subglottic suction connector 10 is provided, including a connecting body 100, a first sealing element 200, and a second sealing element 300. The connecting body 100 has a first connecting end 111, a second connecting end 112, and a third connecting end 121 that communicate with each other; the first connecting end 111 is used to communicate with a subglottic suction tube, and the second connecting end 112 is used to communicate with a suction device. The first sealing element 200 is movably installed on the second connecting end 112 to control the opening or closing of the second connecting end 112. The second sealing element 300 is movably installed on the third connecting end 121 to control the opening or closing of the third connecting end 121.

[0028] The controllable subglottic suction connector 10 in the above embodiment is used as follows. First, the first connecting end 111 is communicated with the subglottic suction tube inserted into the tracheal tube of the patient. Then, the first sealing member 200 is removed from the second connecting end 112 to open the second connecting end 112, and then the second connecting end 112 is communicated with the sputum suction device. Finally, the second sealing member 300 is removed from the third connecting end 121 to open the third connecting end 121, and then the negative pressure during sputum suction is controlled by controlling the movement of the thumb to realize subglottic suction. When the subglottic suction is completed, the second connecting end 112 is disconnected from the sputum suction device, and the first sealing member 200 is moved back to the second connecting end 112 to close the second connecting end 112, and the second sealing member 300 is moved back to the third connecting end 121 to close the third connecting end 121, so that the controllable subglottic suction connector 10 seals the subglottic suction tube, ensures that the subglottic suction tube is not in an exposed state, and air and the respiratory tract are not communicated, thereby reducing the risk of complications. The controllable subglottic suction connector 10 in the present application has at least the following advantages: 1. The negative pressure during sputum suction is controlled by controlling the movement of the thumb, which is convenient to operate, fully releases the pressure, reduces the risk of damage to the respiratory mucosa of the patient, and greatly improves safety, practicality and comfort. 2. During use, the mode of subglottic suction in the prior art is changed, and the sputum suction device and the subglottic suction tube do not need to be repeatedly plugged and unplugged, which can effectively avoid cross infection caused by sputum secretions and generated aerosols while ensuring the suction effect. 3. The controllable subglottic suction connector 10 has a simple design structure, is easy to obtain materials, and is easy to operate, and has low manufacturing and use costs. 4. The sputum in the subglottic suction tube enters the sputum suction device through the first connecting end 111 and the second connecting end 112, and the thumb contacts the third connecting end 121 for control, that is, the thumb does not directly contact the sputum in the connecting body 100, which greatly reduces the risk of occupational exposure of nurses.

[0029] In the present application, the connecting body 100 can be provided as an injection molded part, or can be provided as an assembled part (for example, assembled by a plurality of pipe fittings). The first sealing member 200 can be installed on the second connecting end 112 by screwing, inserting, interference fitting or other detachable connection methods. The second sealing member 300 can be installed on the third connecting end 121 by screwing, inserting, interference fitting or other detachable connection methods. The first sealing member 200 and the second sealing member 300 can be provided as sealing plugs, sealing covers, heparin caps or other sealing structures. In the present embodiment, the first sealing member 200 is provided as a one-time use sealing cover. The second sealing member 300 is provided as a sealing plug. The controllable subglottic suction connector 10 is applied to subglottic suction of tracheostomy patients.

[0030] As Figure 1As shown, further, the controllable subglottic suction connector 10 further comprises a connecting hose 400, one end of the connecting hose 400 being in communication with the first connecting end 111, and the other end being configured to be in communication with the subglottic suction tube.

[0031] In the embodiment, the outer diameter of the connecting hose 400 is adapted to the inner diameter of the subglottic suction tube, so that the connecting hose 400 can be smoothly inserted into the subglottic suction tube while maintaining a sealed fit with the subglottic suction tube, thereby improving the practicality of the controllable subglottic suction connector 10.

[0032] Optionally, the connecting hose 400 is configured to be cut to a preset length when the connecting hose 400 is in communication with the subglottic suction tube. In this way, the convenience of assembly between the connecting hose 400 and the subglottic suction tube is improved.

[0033] The value of the preset length can be flexibly adjusted according to actual needs, as long as the connection between the connecting hose 400 and the subglottic suction tube is not easily loosened. In the embodiment, the value of the preset length is in the range of 2 cm to 3 cm. The connection length between the connecting hose 400 and the subglottic suction tube is greater than 2 cm. In other embodiments, the length of the connecting hose 400 can be directly set as the preset length, and the connecting hose 400 does not need to be cut when it is in communication with the subglottic suction tube.

[0034] As shown, Figure 1 In one embodiment, the connecting body 100 comprises a sputum suction tube 110 and a control tube 120, both ends of the sputum suction tube 110 are respectively provided as the first connecting end 111 and the second connecting end 112, one end of the control tube 120 is in communication with the sputum suction tube 110, and the other end is provided as the third connecting end 121. In this way, the control tube 120 can be located on the upper surface of the sputum suction tube 110, so that the sputum cannot enter the third connecting end 121 and contact the thumb, thereby reducing the risk of occupational exposure of the nurse.

[0035] In the embodiment, the axis of the sputum suction tube 110 is perpendicular to the axis of the control tube 120.

[0036] Further, the outer side wall of the third connecting end 121 is provided with a flange extending in the radial direction thereof, and the side of the flange away from the sputum suction tube 110 is located in the same plane as the end face of the third connecting end 121. In this way, when the negative pressure suction is controlled, the thumb can simultaneously contact the side of the flange away from the sputum suction tube 110 and the end face of the third connecting end 121, so that the sealing area between the thumb and the connecting body 100 is increased, and the negative pressure in the respiratory tract can be generated to perform sputum suction, thereby improving the reliability of the controllable subglottic suction connector 10.

[0037] Optionally, the outer side wall of the flange comprises two circular arc surfaces symmetrically arranged about the axis of the third connecting end 121, and two connecting surfaces arranged in parallel with the extension direction of the sputum suction tube 110, and the two circular arc surfaces are connected to the two connecting surfaces correspondingly. In this way, the close contact sealing area between the thumb and the connecting body 100 is ensured, and at the same time, the volume of the connecting body 100 is not significantly increased, thereby improving the practicability of the controllable subglottic suction connector 10.

[0038] In the embodiment, the two connecting surfaces are arranged at intervals, one end of one of the two connecting surfaces is connected to one end of the two circular arc surfaces correspondingly, and the other end of the other connecting surface is connected to the other end of the two circular arc surfaces correspondingly.

[0039] As shown in the drawings, Figure 1 Optionally, the controllable subglottic suction connector 10 further comprises a flexible connecting piece 500, one end of the flexible connecting piece 500 is connected to the control tube 120, and the other end is connected to the second sealing piece 300. In this way, the second sealing piece 300 can be connected to the connecting body 100 through the flexible connecting piece 500, so that the second sealing piece 300 cannot be lost, and the applicability of the controllable subglottic suction connector 10 is improved.

[0040] The flexible connecting piece 500 can be a flexible rope, a flexible connecting glue or other flexible connecting structure. In the embodiment, one end of the flexible connecting piece 500 away from the second sealing piece 300 is connected to one of the two circular arc surfaces.

[0041] Optionally, the sputum suction tube 110, the control tube 120, the flexible connecting piece 500 and the second sealing piece 300 are integrally formed.

[0042] In the embodiment, the connecting body 100, the flexible connecting piece 500 and the second sealing piece 300 cooperate to form an integrated structure, and the integrated structure is arranged as a sterile controllable sputum suction tube for one-time use.

[0043] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0044] In addition, if there are terms such as "first", "second", these terms are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In the description of the present application, if there are terms such as "a plurality of", the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0045] In the present application, unless otherwise expressly specified and limited, if there are terms such as "installation", "connection", "connection", "fixing" and the like, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise expressly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0046] In the present application, unless otherwise expressly specified and limited, if there are terms such as "first" and "second" features "on" or "under" and the like, the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0047] It should be noted that if an element is referred to as "fixed to" or "provided to" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If there is, the terms "vertical", "horizontal", "up", "down", "left", "right" and the like used in the present application are only for the purpose of illustration, and do not represent the only implementation.

[0048] It should also be understood that when interpreting the connection relationship or position relationship of the elements, although not explicitly described, the connection relationship and position relationship are interpreted to include an error range that should be within an acceptable deviation range of a specific value determined by those skilled in the art. For example, "about", "approximately" or "essentially" can mean within one or more standard deviations, without limitation.

[0049] Any technical features in the above embodiments can be combined, and for the sake of brevity, not all possible combinations are described above, however, as long as the combinations do not conflict with each other, they should be considered to be within the scope of the present disclosure.

[0050] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, some modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A controllable subglottic suction connector, characterized in that, The application relates to a controllable subglottic suction connector. The controllable subglottic suction connector comprises a connecting body, a first sealing member and a second sealing member. The connecting body is provided with a first connecting end, a second connecting end and a third connecting end which are communicated with each other. The first connecting end is used for communicating with a subglottic suction tube.

2. The controllable subglottic suction connector of claim 1, wherein, The second connecting end is used for communicating with a sputum suction device.

3. The controllable subglottic suction connector of claim 2, wherein, The first sealing member is movably installed on the second connecting end to control opening or closing of the second connecting end.

4. The controllable subglottic suction connector of claim 3, wherein, The second sealing member is movably installed on the third connecting end to control opening or closing of the third connecting end.

5. A controllable subglottic suction connector according to any one of claims 1 to 4, wherein, The controllable subglottic suction connector further comprises a connecting hose.

6. The controllable subglottic suction connector of claim 5, wherein, One end of the connecting hose is communicated with the first connecting end, and the other end is used for communicating with the subglottic suction tube.

7. The controllable subglottic suction connector of claim 6, wherein, The connecting hose is configured to be cut to a preset length when the connecting hose is communicated with the subglottic suction tube.

8. The controllable subglottic suction connector of claim 5, wherein, The preset length ranges from 2 cm to 3 cm.

9. The controllable subglottic suction connector of claim 8, wherein, The connecting body comprises a sputum suction tube and a control tube.

10. The controllable subglottic suction connector of any one of claims 1 to 4, wherein, Two ends of the sputum suction tube are respectively provided with the first connecting end and the second connecting end. One end of the control tube is communicated with the sputum suction tube, and the other end is provided with the third connecting end. An outer side wall of the third connecting end is provided with a flange extending along a radial direction of the third connecting end. A side of the flange away from the sputum suction tube is located in the same plane as an end surface of the third connecting end. The outer side wall of the flange comprises two circular arc surfaces which are symmetrically arranged about an axis of the third connecting end, and two connecting surfaces which are parallel to an extending direction of the sputum suction tube. The two circular arc surfaces and the two connecting surfaces are correspondingly connected. The controllable subglottic suction connector further comprises a flexible connecting member. One end of the flexible connecting member is connected with the control tube, and the other end is connected with the second sealing member. The sputum suction tube, the control tube, the flexible connecting member and the second sealing member are integrally formed. The first sealing member is provided as a sealing cover.

Images