Medical sputum suction device
By introducing a heating device into the suction device to warm the oxygen and designing a warm, oxygen-containing flow to moisten the throat, combined with the main and auxiliary suction port structure and sealing components, the problems of dry throat and scratches for patients are solved, achieving improved comfort and preventing leakage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 颜小丹
- Filing Date
- 2025-02-06
- Publication Date
- 2026-07-03
AI Technical Summary
Existing suction devices supply oxygen at low temperatures, causing dryness in the patient's throat and intense discomfort during suctioning. Furthermore, the suction tube can easily scratch the throat.
A medical suction device was designed, comprising an adapter, a suction tube, a seal, and an oxygen supply unit. The oxygen supply unit heats the oxygen and moistens the throat with a warm, oxygenated flow before suctioning. The suction tube is designed with a main and secondary suction port structure to reduce the risk of scratching, and the seal prevents sputum leakage.
It improves patient comfort, reduces discomfort during suctioning, avoids sputum leakage and contamination, and reduces the risk of the suction tube scratching the throat.
Smart Images

Figure CN224441785U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical equipment technology, and in particular to a medical suction device. Background Technology
[0002] A suction device is a medical device used to clear respiratory secretions. Its main function is to suction out sputum or secretions from the airway using negative pressure, thereby maintaining airway patency and preventing complications such as aspiration pneumonia, atelectasis, and suffocation. Existing suction devices typically connect a suction device to a suction tube, which is inserted into the throat for suctioning. In addition, for patients requiring oxygen, an oxygen supply device is provided via an external tube to the throat. Oxygen supply can be continuous or briefly interrupted during suctioning. When oxygen supply is interrupted, pure oxygen is routinely inhaled for 30-60 seconds before and after suctioning to reduce the risk of decreased oxygenation during the process. For example, patent CN203677596U discloses a suction device and a method for oxygen supply and suctioning. However, existing oxygen supply devices supply oxygen at a low temperature, resulting in a dry throat for the patient, causing significant discomfort during suctioning, and the suction tube can easily scratch the throat. Utility Model Content
[0003] In order to solve the problems of the prior art, this utility model provides a method that can moisten the throat by supplying oxygen before suctioning, thereby improving patient comfort and reducing the risk of suctioning scratches.
[0004] The specific technical solution is as follows:
[0005] A medical suction device, comprising:
[0006] An adapter, comprising a first interface, a second interface, and a third interface, wherein the first interface and the third interface are arranged opposite to each other and are interconnected;
[0007] A suction tube is used to connect to the patient's trachea for suctioning. During suctioning, the suction tube passes through the first interface and the third interface to connect to the patient's trachea.
[0008] A sealing element is fitted between the straw base and the first interface to seal the straw;
[0009] An oxygen supply device is connected to the second interface. The oxygen supply device includes a main body, a receiving cavity inside the main body, a liquid inside the receiving cavity, an output pipe and an oxygen pipe on the main body that are connected to the receiving cavity, and a heating device inside the receiving cavity.
[0010] In some embodiments, the oxygen tube is inserted below the receiving cavity.
[0011] In some embodiments, the adapter includes a cap that closes or opens the first interface.
[0012] In some embodiments, the seal includes a first connecting end and a second connecting end, the first connecting end being connected to a first interface and the second connecting end being connected to the tube seat.
[0013] In some embodiments, a sealed cavity is provided between the first connecting end and the second connecting end.
[0014] In some embodiments, the end of the straw has a suction head, the suction head has a main suction port and a plurality of secondary suction ports arranged around the main suction port, the main suction port and the secondary suction ports being respectively connected to the fluid channel of the straw.
[0015] In some embodiments, the main suction port is larger than the secondary suction port, the main suction port is located at the end of the fluid channel, and the secondary suction port is located on the periphery of the fluid channel.
[0016] In some embodiments, the suction head has a tapered sidewall, and a secondary suction port is disposed on the tapered sidewall.
[0017] In some embodiments, the main suction port has an end face on its periphery, and the end face is connected to the conical sidewall by an arc-shaped transition surface, and the secondary suction port extends from the conical sidewall to the end face.
[0018] The technical effects of this utility model are as follows: The medical suction device of this utility model can keep the patient's throat moist before suctioning, which improves the patient's comfort and facilitates suctioning; in addition, it can prevent sputum from leaking through the connection of the suction tube during suctioning, thus avoiding contamination. Attached Figure Description
[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of a medical suction device according to an embodiment of the present invention.
[0021] Figure 2 This is a schematic diagram of the adapter and straw according to an embodiment of the present invention.
[0022] Figure 3 This is a schematic diagram of an oxygen supply device according to an embodiment of the present invention.
[0023] Figure 4 This is a cross-sectional view of the oxygen supply device according to an embodiment of this utility model.
[0024] Figure 5 This is a schematic diagram of the suction head according to an embodiment of the present invention.
[0025] Figure 6 This is another schematic diagram of the suction head according to an embodiment of the present invention. Detailed Implementation
[0026] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.
[0030] like Figures 1 to 6As shown, a medical suction device according to this embodiment includes an adapter 1, a suction tube 2, a sealing element 3, and an oxygen supply unit 4. The adapter 1 includes a first interface 11, a second interface 12, and a third interface 13, which are arranged opposite to each other and are interconnected. The adapter 1 connects to other functional devices through different interfaces. The suction tube 2 is used to connect to the patient's trachea for suctioning. During suctioning, the suction tube 2 passes through the first interface 11 and the third interface 13 into the external trachea and extends into the patient's throat to suction sputum. The suction tube 2 is connected to a suction device, which uses suction to remove sputum from the patient's body. The suction device is a commonly used device in the art. The sealing element 3 is fitted between the tube seat 23 of the suction tube 2 and the first interface 11 to seal the suction tube. Because the suction tube 2 is movably connected to the adapter 1 and the tube seat 23, bacteria may leak from the connection during suctioning. The sealing element 3 helps prevent cross-infection among medical personnel. The oxygen supply unit 4 is connected to the second interface 12 and is used to supply oxygen to the patient. The oxygen supply unit 4 includes a main body 41, within which is a receiving cavity 42 containing liquid, such as purified water. An output pipe 43 and an oxygen pipe 44 on the main body 41 communicate with the receiving cavity 42, which is equipped with a heating device 45. The heating device 45 heats the water in the receiving cavity 42; an existing heating device such as an electric heating element can be used. Oxygen enters the water, heats up, and carries water vapor with it, which moistens the patient's trachea. Using the above technical solution, the third interface 13 connects to the patient's external trachea. Before suctioning, a warm, oxygen-containing flow is first input through the second interface 12. The airflow passes through the third interface 13 and enters the patient's throat, moistening the throat and making the patient more comfortable. Then, the oxygen supply unit 4 is turned off, and the suction tube 2 is inserted through the seal 3 into the first interface 11 and inserted into the patient's throat for suctioning. After suctioning, the medical staff holds the seal 3 and detaches it from the adapter 1. The above technical solution can keep the patient's throat moist before suctioning, improving their comfort and facilitating suctioning; in addition, it can prevent sputum from leaking through the suction tube connection during suctioning, thus avoiding contamination.
[0031] Furthermore, the oxygen tube 44 is inserted below the receiving cavity 42, allowing the oxygen to be fully heated. The adapter 1 includes a cap 14, which closes or opens the first interface 11. The cap 14 is connected to the adapter 1 via a plastic strip. When closed, it can be snapped into the first interface; of course, the cap can also be used to seal the first interface in other ways. When delivering oxygen, the cap 14 closes the first interface 11; when suctioning is required, medical staff manually open the cap 14, open the first interface 11, and insert the suction tube into the first interface 11. The sealing element 3 includes a first connecting end 31 and a second connecting end 32. The first connecting end 31 is connected to the first interface 11, and the second connecting end 32 is connected to the tube seat 23. The first connecting end 31 and the first interface 11 are detachably connected, which can be done by snap-fit, elastic sleeve, etc. In this embodiment, a snap-fit connection is used. The first interface 11 has a groove 111, and the retaining ring in the first connecting end 31 is engaged in the groove 111 for connection. In addition, conventional snap-fit structures are also used. Similarly, the second connecting end 32 is connected in the same way. It is understood that the first and second connecting ends can also be configured as elastic sleeves, which are respectively fitted onto the first interface 11 and the tube seat 23 to achieve connection. A sealing cavity 33 is provided between the first connecting end 31 and the second connecting end 32, allowing the straw 2 to pass through. In this embodiment, the sealing cavity 33 is made of a flexible material, such as plastic.
[0032] Furthermore, the end of the suction tube 2 has a suction head 21, which has a main suction port 211 and several auxiliary suction ports 212 arranged around the main suction port 211. The main suction port 211 and the auxiliary suction ports 212 are respectively connected to the fluid channel 22 of the suction tube 2. By adsorbing sputum through the main and auxiliary suction ports, the suction area and range can be expanded, blockage can be avoided, and the number of times the suction tube moves in the throat can be reduced. The size of the main suction port 211 is larger than that of the auxiliary suction ports 212, that is, the cross-sectional area for fluid entry of the main suction port 211 is larger. The main suction port 211 is located at the end of the fluid channel 22, and the auxiliary suction ports 212 are located around the fluid channel 22, so that the main and auxiliary suction ports can deliver sputum into the fluid channel 22. The main and auxiliary suction ports face different directions, expanding the suction range. The suction head 21 has a conical sidewall 213, and the auxiliary suction ports 212 are arranged on the conical sidewall 213, which facilitates the insertion of the suction head 21 into the throat for suctioning. The main suction port 211 has an end face 214 on its periphery, and the end face 214 is connected to the conical sidewall 213 by an arc-shaped transition surface 215. The secondary suction port 212 extends from the conical sidewall 213 to the end face 214. The above technical solution can reduce the risk of the suction head scratching the throat and expand the coverage area of the secondary suction port.
[0033] The medical suction device of this embodiment can keep the patient's throat moist before suctioning, which improves the patient's comfort and facilitates suctioning; in addition, it can prevent sputum from leaking through the suction tube connection during suctioning and causing contamination.
[0034] The above description describes a medical suction device according to the present invention. However, the present invention is not limited to the specific embodiments described above. Various modifications and alterations can be made without departing from the scope of the claims. The present invention includes various modifications and alterations within the scope of the claims.
[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A medical sputum suction device, characterized by, include: An adapter, comprising a first interface, a second interface, and a third interface, wherein the first interface and the third interface are arranged opposite to each other and are interconnected; A suction tube is used to connect to the patient's trachea for suctioning. During suctioning, the suction tube passes through the first interface and the third interface to connect to the patient's trachea. A sealing element is fitted between the straw's base and the first interface to seal the straw; An oxygen supply device is connected to the second interface. The oxygen supply device includes a main body, a receiving cavity inside the main body, a liquid inside the receiving cavity, an output pipe and an oxygen pipe on the main body that are connected to the receiving cavity, and a heating device inside the receiving cavity.
2. The medical sputum suction device according to claim 1, characterized in that, The oxygen tube is inserted into the lower part of the receiving cavity.
3. The medical sputum suction device according to claim 1, characterized in that, The adapter includes a cap that closes or opens the first interface.
4. The medical sputum suction device according to claim 1, characterized in that, The sealing element includes a first connecting end and a second connecting end, the first connecting end being connected to a first interface, and the second connecting end being connected to the tube seat.
5. The medical sputum suction device according to claim 4, characterized in that, A sealed cavity is provided between the first connecting end and the second connecting end.
6. A medical suction device according to any one of claims 1 to 5, characterized in that, The straw has a suction head at its end, which has a main suction port and several secondary suction ports arranged around the main suction port. The main suction port and the secondary suction ports are respectively connected to the fluid channel of the straw.
7. The medical sputum suction device according to claim 6, characterized in that, The main suction port is larger than the secondary suction port. The main suction port is located at the end of the fluid channel, and the secondary suction port is located on the periphery of the fluid channel.
8. The medical sputum suction device according to claim 7, characterized in that, The suction head has a conical sidewall, and the secondary suction port is located on the conical sidewall.
9. The medical sputum suction device according to claim 8, characterized in that, The main suction port has an end face on its periphery, and the end face is connected to the conical sidewall by an arc-shaped transition surface. The secondary suction port extends from the conical sidewall to the end face.
Citation Information
Patent Citations
Sputum suction device
CN203677596U