A respiratory suction device

By designing a suction device with a ring-shaped fixing component, a safe suction component, and a multi-layer filter purifier, the problems of traditional suction devices, such as laborious operation, high noise, and rigid materials, have been solved. This has enabled a safe and stable suction process, reduced the risk of infection, and improved the protective properties and suction efficiency of the device.

CN224269812UActive Publication Date: 2026-05-26THE 980TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE 980TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE
Filing Date
2024-12-23
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Traditional suctioning equipment is laborious to operate, noisy, easily damages the respiratory tract, lacks anti-backflow design, is made of rigid materials, has limited functions, is difficult to adapt to different sputum characteristics, increases the risk of infection, and has poor disinfection and purification effects.

Method used

A suction device comprising a ring-shaped fixing component, a safe suction component, a filtration and purification component, and a negative pressure suction pump has been designed. The device achieves stable suctioning through a sealing ring and a multi-layer filtration and purification system, prevents the device from tipping over, avoids respiratory tract damage, and provides a safe and stable suctioning environment.

Benefits of technology

It achieves a safe and stable suctioning process, reduces the risk of cross-infection, improves the safety and reliability of the equipment, and enhances the protective properties and suctioning efficiency of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a respiratory suction device, relating to the field of respiratory medicine technology. It includes a device base plate, with an annular fixing assembly fixedly connected to the top of the base plate. A suction container is inserted inside the annular fixing assembly, and a protective cover is inserted into the top of the suction container. A sealing ring is inserted inside the protective cover. Through the sealing ring and the filtration and purification assembly, this utility model achieves safety and filtration effects during operation. The filtration and purification assembly uses multi-layer filtration. The first layer, a polypropylene membrane, with its large pore size, quickly captures larger particulate impurities in the sputum. Two subsequent layers of cellulose filter cotton provide deep purification, intercepting tiny bacteria, viruses, and harmful aerosols. It can filter a large number of respiratory pathogens, greatly reducing the risk of cross-infection in wards. The sealing ring at the bottle opening is made of highly elastic, aging-resistant medical silicone, effectively preventing leakage and improving safety.
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Description

Technical Field

[0001] This utility model relates to the field of respiratory technology, specifically to a respiratory suction device. Background Technology

[0002] In clinical practice, many conditions such as severe pneumonia, acute exacerbation of chronic obstructive pulmonary disease, and aspiration pneumonia caused by bed rest following a cerebrovascular accident often severely impair patients' ability to cough up phlegm, leading to phlegm accumulation in the respiratory tract, which greatly hinders normal gas exchange and thus threatens their life and health. Traditional suctioning devices have revealed numerous problems in addressing this critical need. Manual suctioning devices rely on medical staff to manually pull and pull to generate suction, which is laborious, difficult to maintain a stable suction, and prone to damaging the delicate respiratory mucosa due to uneven force. Moreover, the suctioning efficiency is extremely low, and they are helpless when dealing with slightly viscous sputum. Frequent manual operation significantly prolongs treatment time, increases patient suffering, and increases the risk of infection. While common electric suctioning machines have solved some of the suction stability problems, their noise levels often exceed 60 decibels, seriously disturbing patients' rest in the ward environment, exacerbating anxiety, and affecting the recovery process. At the same time, the internal structure of the equipment is rudimentary, lacking effective anti-backflow and filtration and purification designs, which can easily lead to equipment contamination, bacterial growth, cross-infection, and threaten the safety of subsequent users. Traditional suctioning tubes are made of rigid materials, which irritate the throat and airway when inserted, triggering a violent coughing reflex. Furthermore, their function is limited, and they cannot flexibly adjust the suctioning strategy according to different sputum characteristics, making it difficult to meet the complex and ever-changing clinical suctioning needs. Therefore, the development of new respiratory suctioning devices is urgently needed.

[0003] Utility model patent CN220046618U discloses a clinical sputum suction device, including a negative pressure source, a receiving bottle, and a terminal pressure gauge. The receiving bottle is connected to a negative pressure tube and a suction tube; one end of the negative pressure tube is connected to the outlet of the negative pressure source, and the other end of the suction tube is a free end for connection to a disposable suction catheter. The negative pressure source is equipped with an adjustment knob for adjusting the pressure value at the outlet. The terminal pressure gauge is equipped with a pressure gauge and a pressure measuring interface; the pressure measuring interface is for connection to the free end of the suction tube, and the pressure gauge is used to detect the pressure value at the pressure measuring interface. This application facilitates the suctioning of sputum by medical personnel and is simple and convenient to operate.

[0004] When using the above technical solution,

[0005] (1) The disinfection and purification effect is poor, and it is easy to breed a large number of bacteria, which can easily affect the surrounding environment and cause secondary harm to patients.

[0006] (2) When a rigid suction catheter is inserted into a patient’s nasal cavity, throat or other sensitive airway, it strongly irritates the mucous membrane and instantly triggers the patient’s violent coughing, nausea and vomiting reflex. This not only aggravates the patient’s physical pain, but may also cause the suction catheter to shift or fall out, interrupting the suctioning process, or even causing the risk of suffocation due to aspiration of vomit.

[0007] To address the above problems, this utility model provides a respiratory suction device. Utility Model Content

[0008] The purpose of this invention is to provide a respiratory suction device that ensures smooth breathing and provides a safe, efficient and convenient suction device for patients with various respiratory diseases who have difficulty coughing up phlegm, thereby solving the problems in the background art.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a respiratory suction device, comprising a device base plate, an annular fixing assembly fixedly connected to the top of the device base plate, a suction container inserted inside the annular fixing assembly, a protective cover inserted to the top of the suction container, a sealing ring inserted inside the protective cover, a connecting assembly inserted inside the sealing ring, a safety suction assembly fixedly connected to the top of the connecting assembly, a filtration and purification assembly fixedly connected inside the suction container, and a connection port fixedly connected to one side of the top of the protective cover.

[0010] Furthermore, the annular fixing assembly includes a connecting plate fixedly connected to the top of the device base plate, a limit protection ring fixedly connected to the top of the connecting plate, a limit device threadedly connected to one side of the limit protection ring, and a placement hole provided on the top of the device base plate to achieve the limiting function.

[0011] Furthermore, the connecting assembly includes a connecting elbow that is inserted into the top of the protective cover. One end of the connecting elbow is threadedly connected to a connector, and one end of the connector is fixedly connected to a connecting hose, thus achieving the function of connection.

[0012] Furthermore, the safety suction assembly includes a threaded tube fixedly connected to the top of the connecting hose, a safety blocking plate threaded to one side of the threaded tube, and a suction head fixedly connected to the top of the threaded tube. The suction head has an suction port at its top, thus achieving a safety function.

[0013] Furthermore, the filtration and purification assembly includes a filter purifier fixedly connected inside the suction container. A positioning ring is fixedly connected inside the filter purifier, and a filter frame is inserted into the top of the positioning ring. The three filter cottons and the filter frame are arranged at equal intervals, achieving the functions of protection and filtration.

[0014] Furthermore, the filter purifier has three filter cottons fixedly connected inside, and the filter cottons are made of polypropylene membrane and cellulose, which achieves the purification effect.

[0015] Furthermore, a negative pressure suction pump is fixedly connected to the other side of the top of the device base plate, and a negative pressure connecting pipe is fixedly connected to the top of the negative pressure suction pump. The negative pressure connecting pipe is inserted into the inside of the suction container through the connecting port, thereby achieving the functions of connection and suction.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This utility model provides a respiratory suction device.

[0018] (1) Through the setting of sealing ring and filter purification components, the operation of the device achieves safety and filtration effect. The filter purification components filter in multiple layers. The first layer of polypropylene membrane quickly captures larger particulate impurities in sputum with its large pore size. The subsequent two layers of cellulose filter cotton carry out deep purification, intercepting tiny bacteria, viruses and harmful aerosols. It can filter a large number of respiratory pathogens, greatly reducing the risk of cross-infection in the ward. The sealing ring at the bottle mouth is made of highly elastic and aging-resistant medical silicone, which can effectively block the risk of leakage and improve safety.

[0019] (2) With the safety suction component and the ring fixing component, the personnel can achieve a safe and stable operation when operating the device. According to the different actual conditions of the patients, the length of the suction head in the patient's mouth can be limited by the safety lever to avoid damage to the patient's mouth and respiratory tract caused by excessive length. The ring fixing component locks the suction container in all directions to eliminate the risk of displacement, tipping and leakage, and keep the suction process smooth and safe, laying a solid foundation for continuous and stable suction operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the base plate of the device of this utility model;

[0021] Figure 2 This is a schematic diagram of the negative pressure suction pump of this utility model;

[0022] Figure 3 This is a schematic diagram of the safety barrier of this utility model;

[0023] Figure 4 This is a schematic diagram of the filter purifier of this utility model;

[0024] Figure 5 This is a schematic diagram of the filter cotton of this utility model.

[0025] In the diagram: 1. Device base plate; 2. Annular fixing assembly; 201. Connecting plate; 202. Limiting and protective ring; 203. Limiter; 3. Suction container; 4. Protective cover; 5. Sealing ring; 6. Connecting assembly; 601. Connecting bend; 602. Connector; 603. Connecting hose; 7. Safety suction assembly; 701. Threaded tube; 702. Safety blocking plate; 703. Suction head; 704. Suction inlet; 8. Filtration and purification assembly; 801. Filter purifier; 802. Positioning ring; 803. Filter frame; 804. Filter cotton; 9. Connection port; 10. Negative pressure suction pump; 11. Negative pressure connecting pipe. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] To solve the problem of how to effectively position and adjust the technology, such as Figure 1-5 As shown, the following preferred technical solutions are provided:

[0028] A respiratory suction device includes a device base plate 1, an annular fixing component 2 fixedly connected to the top of the device base plate 1, a suction container 3 inserted inside the annular fixing component 2, a protective cover 4 inserted to the top of the suction container 3, and a sealing ring 5 inserted inside the protective cover 4.

[0029] With the setting of the annular fixing component 2, the limiting protective ring 202 is finely threaded to the limiting device 203, which precisely limits the position of the suction container 3. The bottom of the device base plate 1 has a placement hole to facilitate the tight insertion of the suction container 3 into the annular fixing component 2, thereby achieving a stable protective effect. With the setting of the sealing ring 5 and the protective cover 4, the sealing ring 5 can connect and seal the gap between the connecting component 6 and the protective cover 4, eliminating the risk of leakage, thereby achieving a sealing effect.

[0030] A connecting component 6 is inserted into the inside of the sealing ring 5. A safety suction component 7 is fixedly connected to the top of the connecting component 6. A filter purification component 8 is fixedly connected to the inside of the suction container 3. A connection port 9 is fixedly connected to one side of the top of the protective cover 4.

[0031] By setting up the safety suction component 7, the length of the suction head 703 within the patient's mouth can be limited by the safety blocking plate 702 according to the patient's different actual situation, avoiding damage to the patient's mouth and respiratory tract caused by excessive length, thus achieving a safety effect. By setting up the filter and purification component 8, the inhaled sputum can be deeply filtered and purified, avoiding the growth of a large number of bacteria inside, which would affect the patient and the environment, thus achieving a safety effect. By setting up the connection port 9, the negative pressure connection tube 11 can be easily connected to the inside of the suction container 3, thus achieving a connection effect.

[0032] Specifically, when using the device, the operator then rotates the safety barrier 702 according to the patient's actual condition to control the length of the suction head 703 inserted into the patient's mouth, avoiding excessive length which could damage the patient's mouth, and avoiding excessive shortness which would prevent suction.

[0033] Furthermore, such as Figure 2 As shown, the following preferred technical solutions are provided:

[0034] The annular fixing assembly 2 includes a connecting plate 201 fixedly connected to the top of the device base plate 1. A limiting protective ring 202 is fixedly connected to the top of the connecting plate 201. A limit device 203 is threadedly connected to one side of the limiting protective ring 202. A placement hole is provided on the top of the device base plate 1. The purpose of this design is to connect and fix the limiting protective ring 202 through the limit device 203, so as to provide stable protection for the suction container 3 and avoid tilting or even collapse, thereby achieving a safe and stable effect.

[0035] Furthermore, such as Figure 3 As shown, the following preferred technical solutions are provided:

[0036] The connecting component 6 includes a connecting elbow 601 that is inserted into the top of the protective cover 4. One end of the connecting elbow 601 is threadedly connected to a connector 602, and one end of the connector 602 is fixedly connected to a connecting hose 603. The purpose of this design is to connect the connecting hose 603 to one side of the connecting elbow 601 through the connector 602. The connecting hose 603 can adjust the position of the suction head 703 according to the patient's position, etc., thereby achieving the connection effect.

[0037] Furthermore, such as Figure 3 As shown, the following preferred technical solutions are provided:

[0038] The safety suction assembly 7 includes a threaded tube 701 fixedly connected to the top of the connecting tube 603. A safety blocking plate 702 is threadedly connected to one side of the threaded tube 701. A suction head 703 is fixedly connected to the top of the threaded tube 701. The suction head 703 has an suction port 704 at its top. The purpose of this design is to control the length of the suction head 703 entering the patient's cavity through the safety blocking plate 702, so as to avoid excessive length or sudden insertion that may affect the suctioning work, thereby achieving the effect of limiting the insertion.

[0039] Furthermore, such as Figure 5 As shown, the following preferred technical solutions are provided:

[0040] The filtration and purification assembly 8 includes a filter purifier 801 fixedly connected inside the suction container 3. A positioning ring 802 is fixedly connected inside the filter purifier 801. A filter frame 803 is inserted into the top of the positioning ring 802. A filter cotton 804 is fixedly connected inside the filter frame 803. The purpose of this design is to position the filter frame 803 and the filter cotton 804 by the positioning ring 802, so that the inhaled sputum can be filtered and purified layer by layer, avoiding the large-scale growth of bacteria, thereby achieving a safe effect.

[0041] Furthermore, such as Figure 5 As shown, the following preferred technical solutions are provided:

[0042] The filter purifier 801 has three filter cottons 804 fixedly connected inside. The three filter cottons 804 and the filter frame 803 are set at equal intervals. The purpose of this design is to enhance the purification effect on inhaled sputum and further improve the safety of the device, thereby achieving a safe effect.

[0043] Furthermore, such as Figure 1 As shown, the following preferred technical solutions are provided:

[0044] A negative pressure suction pump 10 is fixedly connected to the other side of the top of the device base plate 1. A negative pressure connecting pipe 11 is fixedly connected to the top of the negative pressure suction pump 10. The negative pressure connecting pipe 11 is inserted into the inside of the suction container 3 through the connecting port 9. The purpose of this design is to connect the negative pressure suction pump 10 and the suction container 3 through the negative pressure connecting pipe 11, thereby achieving the connection effect.

[0045] Working principle:

[0046] First, the suction container 3 is fixed by the limiter 203 and the limiting protective ring 202 to prevent tilting. Then, according to the patient's actual situation, the safety blocking plate 702 is rotated to control the length of the suction head 703 inserted into the patient's mouth, avoiding damage to the patient's mouth due to excessive length and insufficient suction due to insufficient suction. Then, the negative pressure suction pump 10 is started. The negative pressure suction pump 10 is powered on and runs, creating a stable negative pressure environment in the suction container 3 through the negative pressure connecting pipe 11. The safety suction component 7 is close to the area where the patient's sputum accumulates. Under the negative pressure, the sputum flows at high speed into the suction container 3 through the suction port 704, the threaded pipe 701, the connecting hose 603, and other passages. After flowing into the suction container 3, the filtration and purification component 8 can purify and filter the sputum to prevent the growth of bacteria.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A respiratory suction device, comprising a device base plate (1), characterized in that: The top of the device base plate (1) is fixedly connected to an annular fixing component (2), a suction container (3) is inserted inside the annular fixing component (2), a protective cover (4) is inserted at the top of the suction container (3), a sealing ring (5) is inserted inside the protective cover (4), a connecting component (6) is inserted inside the sealing ring (5), a safety suction component (7) is fixedly connected at the top of the connecting component (6), a filter purification component (8) is fixedly connected inside the suction container (3), and a connection port (9) is fixedly connected to one side of the top of the protective cover (4).

2. The respiratory suction device according to claim 1, characterized in that: The annular fixing assembly (2) includes a connecting plate (201) fixedly connected to the top of the device base plate (1). A limit protection ring (202) is fixedly connected to the top of the connecting plate (201). A limit device (203) is threadedly connected to one side of the limit protection ring (202). A placement hole is provided on the top of the device base plate (1).

3. The respiratory suction device according to claim 1, characterized in that: The connecting assembly (6) includes a connecting elbow (601) inserted into the top of the protective cover (4), one end of the connecting elbow (601) is threaded to a connector (602), and one end of the connector (602) is fixedly connected to a connecting hose (603).

4. The respiratory suction device according to claim 1, characterized in that: The safety suction assembly (7) includes a threaded tube (701) fixedly connected to the top of the connecting tube (603), a safety blocking plate (702) is threadedly connected to one side of the threaded tube (701), a suction head (703) is fixedly connected to the top of the threaded tube (701), and an suction port (704) is opened on the top of the suction head (703).

5. A respiratory suction device according to claim 1, characterized in that: The filtration and purification assembly (8) includes a filter purifier (801) fixedly connected inside the suction container (3). A positioning ring (802) is fixedly connected inside the filter purifier (801). A filter frame (803) is inserted into the top of the positioning ring (802). A filter cotton (804) is fixedly connected inside the filter frame (803).

6. A respiratory suction device according to claim 5, characterized in that: The filter purifier (801) has three filter cottons (804) fixedly connected inside, and the three filter cottons (804) and the filter frame (803) are arranged at equal intervals.

7. A respiratory suction device according to claim 1, characterized in that: A negative pressure suction pump (10) is fixedly connected to the other side of the top of the device base plate (1). A negative pressure connecting pipe (11) is fixedly connected to the top of the negative pressure suction pump (10). The negative pressure connecting pipe (11) is inserted into the inside of the suction container (3) through the connecting port (9).