Sealed sputum suction device

Abstract

The utility model relates to the field of clinical medical instruments, and provides a sealed sputum suction device. The sealed sputum suction device comprises a pull rod cylinder, a containing space is formed in the pull rod cylinder, and a pull rod handle is movably arranged on the pull rod cylinder; the piston is arranged in the accommodating space and is connected with the pull rod handle; the first end of the sputum suction tube is connected to the pull rod cylinder and is in fluid communication with the containing space, and the second end of the sputum suction tube is used for stretching into the trachea of a patient; and the sputum storage bottle is connected to the sputum suction tube and is in fluid communication with the sputum suction tube. According to the sealed sputum suction device, negative pressure or positive pressure change can be generated in the sputum suction pipe, medical staff can conveniently, rapidly and effectively suck secretions in the trachea of a patient or clean secretions in the respiratory tract, and the clinical operation efficiency is improved. According to the sputum aspirator, pathogenic microorganisms can be prevented from escaping into air in the sputum aspiration process, the risk of hospital infection is reduced, it is guaranteed that negative pressure generated by sputum aspiration is stable and reliable, and the sputum aspiration effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of clinical medical equipment and provides a sealed sputum suction device. Background Art

[0002] When patients with existing disposable sealed sputum suction tubes go out for examination, sputum suction cannot be achieved after the central negative pressure is disconnected, which can easily lead to patients accidentally aspirating sputum, causing infection in the patients and posing a safety hazard to the patients. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the related art. To this end, the utility model proposes a sealed sputum suction device, which can realize manual sputum suction and improve the convenience and safety of the sealed sputum suction device.

[0004] The utility model provides a sealed sputum suction device, comprising:

[0005] A pull rod cylinder, wherein a receiving space is formed in the pull rod cylinder, and a pull rod handle is movably provided on the pull rod cylinder;

[0006] A piston, disposed in the accommodation space and connected to the pull rod handle;

[0007] A sputum suction tube, wherein a first end of the sputum suction tube is connected to the pull rod tube and is in fluid communication with the accommodating space, and a second end of the sputum suction tube is used to extend into the trachea of ​​the patient;

[0008] The sputum storage bottle is connected to the sputum suction tube and is in fluid communication with the sputum suction tube.

[0009] The sealed sputum suction device provided by the embodiment of the utility model drives the piston to move in the accommodation space of the pull rod tube through the movable pull rod handle, thereby realizing the change of negative pressure or positive pressure in the sputum suction tube, which is convenient for medical staff to quickly and effectively suck the patient's tracheal secretions or clean the respiratory secretions, and improve the clinical operation efficiency. Due to the sealed design, it can ensure that pathogenic microorganisms are prevented from escaping into the air during the sputum suction process, reduce the risk of hospital infection, and ensure that the negative pressure generated by sputum suction is stable and reliable, and improve the sputum suction effect. The fluid connection design between the sputum suction tube and the sputum storage bottle allows the sucked sputum to be directly collected into the sputum storage bottle, avoiding the pollution problem that may be caused by traditional open sputum suction, and facilitating the aseptic treatment and subsequent inspection of sputum. Compared with the traditional sputum suction method, this device may reduce the mechanical stimulation of the patient's airway mucosa by accurately controlling the size of the negative pressure, which helps to reduce the patient's discomfort. The whole device has a high degree of structural integration, a small size, is easy to carry and bedside operation, and is particularly suitable for application in various medical environments such as ICU, emergency room, and ward. The sealed suction device is designed to provide a safer, more hygienic, easier to operate and controllable suction solution through optimized design, improving the patient treatment experience and ensuring the operational safety of medical staff.

[0010] According to an embodiment of the utility model, a connecting hole is formed on the pull rod tube, the sputum suction tube is connected to the connecting hole, and a first one-way valve is arranged at the position of the connecting hole.

[0011] According to an embodiment of the utility model, a mounting hole is provided on the pull rod tube, the pull rod handle is passed through the mounting hole, and the pull rod handle is clearance-matched with the mounting hole.

[0012] According to an embodiment of the utility model, a sputum inlet hole is provided on the sputum suction tube, the sputum storage bottle is connected to the sputum inlet hole, and a second one-way valve is provided at the position of the sputum inlet hole.

[0013] According to one embodiment of the utility model, the second end of the sputum suction tube is connected to a cannula, and the cannula is used to extend into the trachea of ​​the patient.

[0014] According to an embodiment of the utility model, an external connection interface is provided on the cannula, and the external connection interface is used to connect to a ventilator.

[0015] According to an embodiment of the utility model, the insertion tube is a corrugated tube.

[0016] According to an embodiment of the utility model, the sputum storage bottle is detachably connected to the sputum suction tube.

[0017] According to an embodiment of the utility model, a sealing gasket is provided at the outer edge of the piston, the sealing gasket is in sealing contact with the inner wall of the pull rod tube and the sealing gasket is bent toward the direction of the pull rod handle.

[0018] According to an embodiment of the utility model, a handle is provided at one end of the pull rod handle away from the pull rod tube.

[0019] The above one or more technical solutions in the embodiments of the utility model have at least one of the following technical effects:

[0020] The sealed sputum suction device provided by the embodiment of the utility model drives the piston to move in the accommodation space of the pull rod tube through the movable pull rod handle, thereby realizing the change of negative pressure or positive pressure in the sputum suction tube, which is convenient for medical staff to quickly and effectively suck the patient's tracheal secretions or clean the respiratory secretions, and improve the clinical operation efficiency. Due to the sealed design, it can ensure that pathogenic microorganisms are prevented from escaping into the air during the sputum suction process, reduce the risk of hospital infection, and ensure that the negative pressure generated by sputum suction is stable and reliable, and improve the sputum suction effect. The fluid connection design between the sputum suction tube and the sputum storage bottle allows the sucked sputum to be directly collected into the sputum storage bottle, avoiding the pollution problem that may be caused by traditional open sputum suction, and facilitating the aseptic treatment and subsequent inspection of sputum. Compared with the traditional sputum suction method, this device may reduce the mechanical stimulation of the patient's airway mucosa by accurately controlling the size of the negative pressure, which helps to reduce the patient's discomfort. The whole device has a high degree of structural integration, a small size, is easy to carry and bedside operation, and is particularly suitable for application in various medical environments such as ICU, emergency room, and ward. The sealed suction device is designed to provide a safer, more hygienic, easier to operate and controllable suction solution through optimized design, improving the patient treatment experience and ensuring the operational safety of medical staff.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is a schematic structural diagram of a sealed sputum suction device provided in an embodiment of the utility model.

[0024] Reference numerals:

[0025] 100. pull rod cylinder; 102. accommodating space; 104. pull rod handle; 106. piston; 107. sealing gasket; 108. suction tube; 110. sputum storage bottle; 112. first one-way valve; 114. second one-way valve; 116. cannula; 118. external interface; 120. handle. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0027] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0028] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0029] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0031] like Figure 1 As shown, the embodiment of the utility model provides a sealed sputum suction device, comprising:

[0032] A rod barrel 100, wherein a receiving space 102 is formed in the rod barrel 100, and a rod handle 104 is movably provided on the rod barrel 100;

[0033] A piston 106, disposed in the accommodation space 102 and connected to the pull rod handle 104;

[0034] A sputum suction tube 108, wherein a first end of the sputum suction tube 108 is connected to the pull rod tube 100 and is in fluid communication with the accommodating space 102, and a second end of the sputum suction tube 108 is used to extend into the trachea of ​​the patient;

[0035] The sputum storage bottle 110 is connected to the sputum suction tube 108 and is in fluid communication with the sputum suction tube 108 .

[0036] The sealed sputum suction device provided by the embodiment of the utility model drives the piston 106 to move in the accommodation space 102 of the pull rod tube 100 through the movable pull rod handle 104, thereby realizing the negative pressure or positive pressure change in the sputum suction tube 108, which is convenient for medical staff to quickly and effectively suck the patient's tracheal secretions or clean the respiratory secretions, and improve the clinical operation efficiency. Due to the sealed design, it can ensure that pathogenic microorganisms are prevented from escaping into the air during the sputum suction process, reduce the risk of hospital infection, and ensure that the negative pressure generated by sputum suction is stable and reliable, thereby improving the sputum suction effect. The fluid connection design between the sputum suction tube 108 and the sputum storage bottle 110 allows the sucked sputum to be directly collected in the sputum storage bottle 110, avoiding the pollution problem that may be caused by the traditional open sputum suction, and facilitating the aseptic treatment and subsequent inspection of the sputum. Compared with the traditional sputum suction method, this device may reduce the mechanical stimulation to the patient's airway mucosa by accurately controlling the size of the negative pressure, which helps to alleviate the patient's discomfort. The whole device has a high degree of structural integration, a small size, and is easy to carry and operate at the bedside, making it particularly suitable for use in a variety of medical environments such as ICUs, emergency rooms, and wards. The sealed sputum suction device aims to provide a safer, more hygienic, easier to operate and control sputum suction solution through optimized design, improving the patient treatment experience and ensuring the safety of medical staff.

[0037] Please continue to see Figure 1 The main components of the sealed sputum suction device include a pull rod tube 100, a pull rod handle 104, a piston 106, a sputum suction tube 108 and a sputum storage bottle 110.

[0038] The rod barrel 100 is a hollow cylinder with a receiving space 102 formed therein. The receiving space 102 can accommodate a piston 106 to reciprocate therein. An opening is provided on one side or the top of the rod barrel 100 so that the rod handle 104 can move in the opening.

[0039] The rod handle 104 is connected to the piston 106, usually by a threaded connection or other connection methods. When the rod handle 104 is pulled, the piston 106 moves backward in the accommodating space 102 of the rod cylinder 100, thereby generating a negative pressure. This negative pressure can suck out the patient's sputum through the sputum suction tube 108.

[0040] The sputum suction tube 108 is a hose, the first end of which is connected to the rod tube 100 and is in fluid communication with the accommodating space 102. Thus, when the rod handle 104 is pulled to generate negative pressure, the sputum suction tube 108 can suck sputum out of the patient's trachea. The second end of the sputum suction tube 108 is used to extend into the patient's trachea, and this part is usually provided with an appropriate curvature to adapt to the shape of the patient's trachea.

[0041] The sputum storage bottle 110 is a container for storing sputum, and is in fluid communication with the sputum suction tube 108. When the sputum suction tube 108 sucks out sputum, the sputum will enter the sputum storage bottle 110, thereby being temporarily stored. The design of the sputum storage bottle 110 should be considered to be easy to clean and replace to ensure hygiene and safety.

[0042] Thus, the sealed sputum suction device moves the piston 106 in the rod tube 100 by pulling the rod handle 104, generating negative pressure, thereby sucking out the patient's sputum through the sputum suction tube 108 and storing it in the sputum storage bottle 110. This design not only ensures the sealing of the sputum suction process and prevents the overflow of sputum, but also makes the sputum suction process simple and convenient.

[0043] According to an embodiment of the utility model, a connecting hole is formed on the pull rod tube 100, the sputum suction tube 108 is connected to the connecting hole, and a first one-way valve 112 is provided at the position of the connecting hole.

[0044] In the embodiment of the utility model, a connecting hole is added to the rod tube 100, and the sputum suction tube 108 is in fluid communication with the accommodating space 102 inside the rod tube 100 through the connecting hole. A first one-way valve 112 is provided at the position of the connecting hole.

[0045] The function of the first one-way valve 112 is to ensure that the airflow in the sputum suction tube 108 can only flow in one direction, that is, it can only flow from the patient's trachea to the sputum storage bottle 110, but cannot flow back to the patient's trachea from the sputum storage bottle 110. In this way, when the piston 106 moves in the pull rod cylinder 100 to generate negative pressure, the sputum suction tube 108 can smoothly suck sputum from the patient's trachea, but the sputum in the sputum storage bottle 110 will not flow back into the patient's trachea through the sputum suction tube 108, thereby ensuring the safety and hygiene of the sputum suction process.

[0046] The first one-way valve 112 can be implemented in many ways, for example, it can be a one-way valve sheet or a one-way valve ball, etc. When the airflow flows from the patient's trachea to the sputum storage bottle 110, the one-way valve will open to allow the airflow to pass; and when the airflow tries to flow back from the sputum storage bottle 110 to the patient's trachea, the one-way valve will close to prevent the backflow of the airflow.

[0047] By providing a connecting hole on the rod tube 100 and providing a first one-way valve 112 at the position of the connecting hole, the sealed sputum suction device of this embodiment further enhances its safety and hygiene, making the sputum suction process more reliable and effective.

[0048] According to an embodiment of the present invention, a mounting hole is provided on the pull rod tube 100 , and the pull rod handle 104 is passed through the mounting hole, and the pull rod handle 104 is clearance-matched with the mounting hole.

[0049] In the embodiment of the utility model, a mounting hole is added to the rod tube 100, and the rod handle 104 is inserted into the mounting hole. Moreover, a clearance fit is adopted between the rod handle 104 and the mounting hole.

[0050] Clearance fit means that there is a certain gap between the two mating parts, that is, the pull rod handle 104 can have a certain amount of space to move in the mounting hole. This design allows the pull rod handle 104 to move more smoothly in the mounting hole, reducing friction and resistance, making the suction operation easier and more labor-saving. In addition, the clearance fit also has a certain fault tolerance. Even if there is a certain error in the size of the pull rod handle 104 or the mounting hole, it will not have much impact on the suction operation. This design improves the adaptability and reliability of the device.

[0051] In summary, by providing a mounting hole on the pull rod tube 100 and inserting the pull rod handle 104 into the mounting hole in a clearance fit manner, the sealed sputum suction device of this embodiment further improves the convenience of operation and the reliability of the device.

[0052] According to an embodiment of the utility model, a sputum inlet hole is provided on the sputum suction tube 108, the sputum storage bottle 110 is connected to the sputum inlet hole, and a second one-way valve 114 is provided at the position of the sputum inlet hole.

[0053] In the embodiment of the utility model, a sputum inlet hole is provided on the sputum suction tube 108, and the sputum storage bottle 110 is fluidically connected to the sputum suction tube 108 through the sputum inlet hole. A second one-way valve 114 is provided at the position of the sputum inlet hole.

[0054] The function of the second one-way valve 114 is similar to that of the first one-way valve 112, and is also to ensure that the airflow can only flow in one direction. Specifically, the second one-way valve 114 ensures that sputum can only flow from the sputum suction tube 108 to the sputum storage bottle 110, and cannot flow from the sputum storage bottle 110 back to the sputum suction tube 108. In this way, when negative pressure is generated by operating the pull rod handle 104, sputum can be smoothly sucked into the sputum storage bottle 110, and the sputum in the sputum storage bottle 110 will not flow back to the sputum suction tube 108, thereby avoiding the risk of cross contamination.

[0055] There are many specific implementations of the second one-way valve 114, such as a one-way valve sheet or a one-way valve ball. When the sputum in the sputum suction tube 108 flows to the sputum storage bottle 110, the one-way valve will open to allow the sputum to pass through; and when the gas or liquid in the sputum storage bottle 110 tries to flow back to the sputum suction tube 108 through the sputum inlet hole, the one-way valve will close to prevent it from flowing.

[0056] By providing a sputum inlet hole on the sputum suction tube 108 and arranging a second one-way valve 114 at the position of the sputum inlet hole, the sealed sputum suction device of this embodiment further enhances its sealing and safety, making the sputum suction process more hygienic and reliable. At the same time, this design also helps to improve the efficiency of sputum suction and reduce the trouble and inconvenience during the operation.

[0057] According to an embodiment of the present invention, the second end of the sputum suction tube 108 is connected to a cannula 116, and the cannula 116 is used to extend into the trachea of ​​the patient.

[0058] In the embodiment of the utility model, the second end of the sputum suction tube 108 is connected to a cannula 116. The cannula 116 is for more conveniently and safely extending into the patient's trachea to perform sputum suction operation.

[0059] The design of the cannula 116 is usually more ergonomic, with appropriate curvature and length to adapt to the shape and length of the trachea of ​​different patients. The material of the cannula 116 is also harmless to the human body, soft and has a certain toughness to reduce irritation and damage to the patient's trachea.

[0060] By connecting the cannula 116 to the second end of the sputum suction tube 108, the operator can more conveniently insert the sputum suction device into the patient's trachea to perform the sputum suction operation. At the same time, since the length and curvature of the cannula 116 can be adjusted, it can better meet the needs of different patients and improve the effect and comfort of sputum suction. In addition, the cannula 116 can also play a certain fixing role, making the sputum suction tube 108 more stable in the patient's trachea and not easy to fall off or move. This also helps to improve the safety and effect of sputum suction.

[0061] By connecting the cannula 116 to the second end of the suction tube 108, the sealed suction device of this embodiment further improves the convenience, safety and comfort of operation, making the suction process smoother and more effective.

[0062] According to an embodiment of the present invention, an external connection interface 118 is provided on the cannula 116, and the external connection interface 118 is used to connect to a ventilator.

[0063] In the embodiment of the utility model, an external interface 118 is provided on the cannula 116, and the external interface 118 is used to connect to a ventilator. This design enables the sealed sputum suction device to be used in conjunction with a ventilator while suctioning sputum, providing continuous airflow support for patients who need assisted breathing.

[0064] When the patient needs assisted breathing, the ventilator can be connected to the cannula 116 via the external interface 118, thereby providing oxygen or other required gases to the patient's trachea. In this way, during the process of sputum suction, the patient's breathing will not be greatly affected and a relatively stable breathing state can be maintained.

[0065] The design of the external interface 118 usually takes into account the firmness, sealing and ease of use of the connection. It may adopt a standard interface size and shape to be compatible with various common ventilators. At the same time, in order to ensure the safety of the patient, some safety mechanisms may be set at the external interface 118, such as an anti-drop device or an anti-backflow device.

[0066] This design of combining the suction device with the ventilator can not only improve the effect and safety of suction, but also provide patients with more comprehensive and meticulous medical services. It is particularly suitable for patients who need long-term assisted breathing, such as patients with severe pneumonia and chronic obstructive pulmonary disease.

[0067] By opening an external interface 118 on the cannula 116 and connecting it to a ventilator, the sealed sputum suction device of this embodiment further expands its application scope and function, and provides a more comprehensive and effective treatment method for patients who need assisted breathing.

[0068] According to an embodiment of the present invention, the insert tube 116 is a corrugated tube.

[0069] In the embodiment of the utility model, the cannula 116 is designed as a bellows. The bellows is a tubular structure with a corrugated shape, and its material usually has a certain elasticity and flexibility. This design enables the cannula 116 to better adapt to the bending and changes of the trachea when inserted into the patient's trachea, reducing the stimulation and discomfort to the patient.

[0070] The advantage of the bellows is its good flexibility and adaptability. When the cannula 116 is inserted into the patient's trachea, the bellows can conform to the natural curvature of the trachea, reducing the friction and resistance between the cannula 116 and the trachea. This compliance not only helps the smooth insertion of the cannula 116, but also maintains a stable connection during the suction process to prevent the cannula 116 from accidentally falling off or shifting. In addition, the elasticity of the bellows can also reduce the pressure on the patient's trachea to a certain extent. During the suction process, due to the effect of negative pressure, the cannula 116 may exert a certain amount of pressure on the patient's trachea. The design of the bellows can alleviate this sense of pressure to a certain extent and reduce discomfort and damage to the patient.

[0071] By designing the cannula 116 as a bellows, the sealed sputum suction device of this embodiment further improves the convenience, comfort and safety of operation. This design makes the cannula 116 more adaptable to the patient's trachea shape, reduces irritation and discomfort, and also improves the stability and effect of the sputum suction process.

[0072] According to an embodiment of the present invention, the sputum storage bottle 110 is detachably connected to the sputum suction tube 108 .

[0073] In the embodiment of the utility model, the connection between the sputum storage bottle 110 and the sputum suction tube 108 is detachable, which means that they can be easily assembled and disassembled. Since the sputum storage bottle 110 and the sputum suction tube 108 are detachably connected, they can be easily separated for cleaning and disinfection after use. This is very important for the hygiene and safety of medical equipment, and can avoid the risk of cross contamination and infection.

[0074] When the sputum in the sputum storage bottle 110 reaches a certain level, it needs to be replaced in time. The detachable connection design makes it simple and quick to replace the sputum storage bottle 110 without the need for additional tools or complicated operations.

[0075] The detachable connection allows the sputum storage bottle 110 and the sputum suction tube 108 to be assembled and disassembled as needed, which is suitable for different usage scenarios. For example, in some cases, it may be necessary to use sputum storage bottles 110 of different capacities, or to replace different types of sputum suction tubes 108. The design of the detachable connection makes these operations easy to implement.

[0076] In order to achieve a detachable connection, corresponding interfaces and matching structures are usually provided at the connection between the sputum storage bottle 110 and the sputum suction tube 108. These interfaces and matching structures can be in the form of threaded connection, snap connection, plug-in connection, etc., to ensure the firmness and sealing of the connection.

[0077] By designing the sputum storage bottle 110 and the sputum suction tube 108 to be detachably connected, the sealed sputum suction device of this embodiment further improves the convenience, hygiene and safety of use. This design makes the operations of cleaning, disinfecting and replacing the sputum storage bottle 110 simpler and more efficient, and also improves the adaptability and flexibility of the device.

[0078] According to an embodiment of the present invention, a sealing gasket 107 is disposed at the outer edge of the piston 106 , the sealing gasket 107 is in sealing contact with the inner wall of the pull rod tube 100 and the sealing gasket 107 is bent toward the pull rod handle 104 .

[0079] In the embodiment of the utility model, a sealing pad 107 is added to the outer edge of the piston 106. The sealing pad 107 is in close contact with the inner wall of the rod tube 100, thereby ensuring the sealing of the piston 106 when it moves inside the rod tube 100. More specifically, the sealing pad 107 is bent toward the direction of the sputum suction tube 108, and this design helps to further enhance the sealing effect and prevent gas leakage or external impurities from entering during the sputum suction process.

[0080] The presence of the sealing pad 107 is essential for ensuring the negative pressure operation of the sputum suction device. Figure 1 As shown in the figure, the sealing pad 107 is bent toward the side of the pull rod handle 104, so the medical staff only needs to apply a certain external force to push the pull rod handle 104, avoiding the medical staff from using too much force. Figure 1 As shown in the right side movement, the sealing pad 107 can ensure the sealing fit with the inner wall of the rod tube 100, ensuring that an effective sealing channel is formed between the sputum suction tube 108 and the rod tube 100, so that the sputum suction tube 108 can smoothly suck sputum from the patient's trachea. In addition, the design of the sealing pad 107 also takes into account the contact area and friction between it and the inner wall of the rod tube 100. The appropriate contact area and friction can ensure that the piston 106 moves smoothly and stably inside the rod tube 100, and will not cause difficulty in operation or excessive wear of the sealing pad 107 due to excessive friction.

[0081] By providing a sealing pad 107 on the outer edge of the piston 106 and bending it toward the sputum suction tube 108, the sealed sputum suction device of this embodiment further improves its sealing performance and operational stability, ensuring the safety and effectiveness of the sputum suction process.

[0082] According to an embodiment of the present invention, a handle 120 is provided at one end of the pull rod handle 104 away from the pull rod tube 100 .

[0083] In the embodiment of the utility model, a handle 120 is additionally provided at one end of the pull rod handle 104 away from the pull rod tube 100. The design of the handle 120 enables the operator to hold and operate the pull rod handle 104 more conveniently, thereby performing the sputum suction operation more easily.

[0084] The shape and size of the handle 120 can be designed according to ergonomics to provide an optimal gripping experience. For example, the handle 120 can be designed to be an arc that fits the shape of the palm, or a non-slip texture can be added to its surface to improve gripping stability and comfort. In addition, the handle 120 can also be made of a soft and elastic material to reduce fatigue caused by long-term gripping.

[0085] The addition of the handle 120 not only improves the convenience of operation, but also helps to reduce fatigue and misoperation during operation. By holding the handle 120, the operator can more stably control the movement of the pull rod handle 104, thereby more accurately controlling the suction position and depth of the sputum suction tube 108. This is very important for improving the suction effect and reducing the discomfort of the patient.

[0086] By providing a handle 120 at the end of the pull rod handle 104 away from the pull rod tube 100, the sealed sputum suction device of this embodiment further improves the convenience and comfort of operation, making the sputum suction process easier, more accurate and more efficient.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A sealed sputum suction device, characterized in that: include: A pull rod cylinder (100), wherein a receiving space (102) is formed in the pull rod cylinder (100), and a pull rod handle (104) is movably provided on the pull rod cylinder (100); A piston (106) is disposed in the accommodation space (102) and connected to the pull rod handle (104); A sputum suction tube (108), wherein a first end of the sputum suction tube (108) is connected to the pull rod tube (100) and is in fluid communication with the accommodating space (102), and a second end of the sputum suction tube (108) is used to extend into the trachea of ​​a patient; A sputum storage bottle (110), connected to the sputum suction tube (108) and in fluid communication with the sputum suction tube (108); The second end of the sputum suction tube (108) is connected to a cannula (116), and the cannula (116) is used to extend into the patient's trachea. The cannula (116) is provided with an external interface (118), and the external interface (118) is used to connect to a ventilator.

2. The sealed sputum suction device according to claim 1, characterized in that: A connecting hole is formed on the pull rod tube (100), the sputum suction tube (108) is connected to the connecting hole, and a first one-way valve (112) is arranged at the position of the connecting hole.

3. The sealed sputum suction device according to claim 1, characterized in that: The pull rod tube (100) is provided with a mounting hole, the pull rod handle (104) is inserted into the mounting hole, and the pull rod handle (104) is clearance-matched with the mounting hole.

4. The sealed sputum suction device according to claim 1, characterized in that: The sputum suction tube (108) is provided with a sputum inlet hole, the sputum storage bottle (110) is connected to the sputum inlet hole, and a second one-way valve (114) is provided at the position of the sputum inlet hole.

5. The sealed sputum suction device according to claim 1, characterized in that: The insert tube (116) is a corrugated tube.

6. The sealed sputum suction device according to any one of claims 1 to 5, characterized in that: The sputum storage bottle (110) is detachably connected to the sputum suction tube (108).

7. The sealed sputum suction device according to any one of claims 1 to 5, characterized in that: A sealing gasket (107) is provided on the outer edge of the piston (106), the sealing gasket (107) is in sealing contact with the inner wall of the pull rod tube (100), and the sealing gasket (107) is bent toward the pull rod handle (104).

8. The sealed sputum suction device according to any one of claims 1 to 5, characterized in that: A handle (120) is provided at one end of the pull rod handle (104) facing away from the pull rod tube (100).

Images