Secretion suction device capable of rapidly replacing and assembling parts
By designing a quick-assembly secretion suction device, utilizing threaded connections and a flexible structure, the problems of mucosal damage and esophageal ingestion during infant use are solved. This enables rapid replacement of parts and assembly, improving treatment efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AFFILIATED CHILDRENS HOSPITAL OF CAPITAL INST OF PEDIATRICS
- Filing Date
- 2025-04-14
- Publication Date
- 2026-04-17
AI Technical Summary
Existing secretion suction devices can easily damage the mucous membranes when used on infants, and can easily penetrate the esophagus, causing discomfort and potential life-threatening situations. Furthermore, they are inconvenient to assemble and replace parts.
A secretion suction device comprising a liquid suction ball, a first connecting assembly, a straight rod, a second connecting assembly, and a negative pressure ball is designed. The device enables quick assembly and parts replacement through threaded connections and elastic structures. The liquid suction ball is designed to prevent entry into the esophagus, the straight rod provides stability, and the elastic lever and compression spring ensure a tight connection.
It enables quick replacement of parts and assembly, improves treatment efficiency, reduces the risk of damage to the infant's mucous membrane, avoids the danger of the device entering the esophagus, and improves safety and ease of operation.
Smart Images

Figure CN224126098U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically to a secretion suction device that allows for quick replacement of parts and assembly. Background Technology
[0002] In clinical medicine, secretion aspiration devices are commonly used medical equipment, especially in obstetrics and gynecology, emergency departments, etc., to absorb secretions, blood, vomit, etc. from patients. This is of great significance for keeping patients' airways clear and preventing infection.
[0003] However, most existing secretion aspiration devices suffer from problems such as inconvenient parts replacement and complex assembly, affecting the maintenance and efficiency of the equipment. Moreover, most existing secretion aspiration devices directly connect the drainage tube to the negative pressure bulb. For infants, whose oral mucosa is already quite fragile, when the aspiration device generates negative pressure, the drainage tube is very easy to be sucked onto the oral mucosa, causing discomfort to the infant when aspirating saliva or secretions and easily causing mucosal damage. Furthermore, if operated improperly, the drainage tube can easily be inserted into the esophagus, posing a life-threatening risk.
[0004] Therefore, how to provide a secretion aspiration device that allows for quick replacement of parts and assembly, and to overcome the shortcomings of existing secretion aspiration devices, is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0005] Therefore, this utility model provides a secretion aspiration device that allows for quick replacement of parts and assembly, in order to solve the problem in the prior art that secretion aspiration devices can easily damage the mucous membrane and easily penetrate the esophagus when used on infants, causing discomfort and life-threatening situations for patients.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] This utility model discloses a secretion suction device that allows for quick replacement and assembly of parts, comprising:
[0008] The first connecting component has a liquid suction ball connected to its right end surface, and a straight rod inserted into its left end.
[0009] The second connecting component has a guide tube connected to its left end surface, and the other end of the straight rod is inserted into the right end of the second connecting component.
[0010] A negative pressure ball is connected to the other end of the guide tube.
[0011] In one possible implementation, the first connection component includes:
[0012] The mounting post has a drainage groove inside, and a slot is opened on the surface of one end of the mounting post. The slot is located outside the drainage groove and has an internal thread.
[0013] An insert block is disposed on the surface of the other end of the mounting post, and a plurality of displacement holes are provided on the outer surface of the insert block;
[0014] A compression spring is mounted on the side wall of the displacement hole at one end, and a triangular apex block is connected to the other end of the compression spring.
[0015] In one possible implementation, the second connection component includes:
[0016] The right end surface structure of the connecting post is the same as the left end surface structure of the first connecting component;
[0017] An extension block is installed on the left end of the connecting post, and several elastic tabs are installed on the left end surface of the extension block.
[0018] In one possible implementation, the liquid attraction ball includes:
[0019] A sphere with a hollow interior and several spherical protrusions installed on its outer surface;
[0020] A flow guide hole is formed in the spherical protrusion. One end of the flow guide hole extends out of the spherical protrusion, and the other end of the flow guide hole extends toward the sphere and communicates with the hollow structure.
[0021] An annular block is installed at the left end of the sphere, and the right end of the first connecting component is inserted into the annular block.
[0022] In one possible implementation, the liquid attraction ball is made of thermoplastic elastomer (TPE).
[0023] In one possible implementation, the outer surface of the straight rod is provided with external threads, the external threads are provided in pairs, and the external threads are located on the outside of the end of the straight rod.
[0024] In one possible implementation, the negative pressure ball includes:
[0025] A connecting cover is provided with a plug at its upper end, and the plug is inserted into the guide tube.
[0026] An air intake head is installed in the connecting cover, and a plug is inserted into the upper end of the air intake head;
[0027] An extrusion body is installed below the connecting cover, and the interior of the extrusion body is a hollow structure.
[0028] In one possible implementation, the extruded body is made of silicone.
[0029] This invention features a liquid suction ball inserted into an infant's mouth. This ball not only has more drainage holes on its surface to improve the drainage efficiency of saliva or secretions, but its diameter is also larger than the esophagus diameter, making the entire device less likely to fall into the esophagus and cause danger. The second connecting component allows for quick connection of the liquid suction ball, straight rod, and drainage tube, improving treatment efficiency. Furthermore, the connection between the second and first connecting components allows for quick replacement of these three parts. The straight rod design, compared to a flexible drainage tube, ensures easy handling and prevents wobbling during use. The first connecting component can also be placed against the infant's lips to ensure the liquid suction ball's insertion depth. Attached Figure Description
[0030] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.
[0031] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0032] Figure 1 Cross-sectional view of the secretion suction device that allows for quick replacement of parts and assembly according to this utility model;
[0033] Figure 2 A cross-sectional view of the negative pressure ball provided by this utility model;
[0034] Figure 3 A cross-sectional view of the first connecting component provided by this utility model;
[0035] Figure 4 A cross-sectional view of the second connecting component provided by this utility model;
[0036] Figure 5 A cross-sectional view of the liquid suction ball provided by this utility model;
[0037] Figure 6 A three-dimensional view of the straight rod provided for this utility model;
[0038] Figure 7 A perspective view of the connecting cover provided for this utility model;
[0039] Figure 8 A cross-sectional view of the extruded body provided by this utility model;
[0040] In the diagram: 1 Liquid suction ball; 11 Flow guide hole; 12 Spherical protrusion; 13 Sphere; 14 Annular block; 2 First connecting assembly; 21 Insert block; 22 Displacement hole; 23 Compression spring; 24 Slot; 25 Internal thread; 26 Mounting post; 27 Triangular top block; 3 Straight rod; 31 External thread; 4 Second connecting assembly; 41 Connecting post; 42 Extension block; 43 Elastic lever; 5 Flow guide tube; 6 Negative pressure ball; 61 Plug; 62 Compression body; 63 Connecting cover; 64 Air inlet head; 65 Plug. Detailed Implementation
[0041] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. 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 protection scope of this utility model.
[0042] Please refer to Figures 1-8 The present invention discloses a secretion suction device that allows for quick replacement and assembly of parts. The present invention consists of six parts, as follows: Figures 1-2 It includes a liquid suction ball 1, a first connecting component 2, a straight rod 3, a second connecting component 4, a guide tube 5, and a negative pressure ball 6. The liquid suction ball 1 is connected to the right end surface of the first connecting component 2, one end of the straight rod 3 is inserted into the left end of the first connecting component 2, the guide tube 5 is connected to the left end surface of the second connecting component 4, the other end of the straight rod 3 is inserted into the right end of the second connecting component 4, and the negative pressure ball 6 is connected to the other end of the guide tube 5.
[0043] In use, the designed straight rod 3 is connected via the external thread 31 on its outer surface. One end of the second connecting component 4 has the same internal thread 25 and slot 24 structure as the first connecting component 2, and the external thread 31 is threaded into the internal thread 25. The first connecting component 2 and the second connecting component 4 are respectively installed at both ends of the straight rod 3. Then, the guide tube 5 is taken out, and the four elastic tabs 43 on the second connecting component 4 are squeezed together, causing the diameter of the ring formed by the four elastic tabs 43 to decrease. After squeezing, the elastic tabs 43 are inserted into the guide tube 5 until the guide tube 5 completely submerges the extension block 42. Then, the plug 61 is inserted into the other end of the guide tube 5 to complete the connection of the negative pressure ball 6. Finally, the appropriate fitting is selected. A liquid suction ball 1 of appropriate size is used to insert the block 21 into the annular block 14. During the insertion process, the outer surface of the annular block 14 contacts the triangular apex 27. During the insertion process, due to the influence of the inclined surface of the triangular apex 27, the annular block 14 will abut against the triangular apex 27 and push the triangular apex 27 into the displacement hole 22, which will compress the compression spring 23. The compressed compression spring 23 generates elastic force and applies the elastic force to the triangular apex 27. When the liquid suction ball 1 completely engulfs the block 21, the elastic force of the compression spring 23 drives the triangular apex 27 to move outward. During the movement, since the liquid suction ball 1 is made of thermoplastic elastomer TPE, one tip of the triangular apex 27 will insert into the inner wall of the annular block 14 to implement a limit. After installation, place the liquid suction ball 1 into the infant's mouth. The doctor needs to hold the straight rod 3. Although the first connecting component 2 can be used to press against the lips to prevent the entire secretion suction device from sliding into the esophagus, it is best to hold the straight rod 3 to prevent the weight of part of the device from being applied to the patient's mouth and causing discomfort. After holding the straight rod 3, pull out the plug 65, wipe the air inlet head 64 with sterile cotton, and then squeeze the squeeze body 62 to expel the air in the squeeze body 62 from the air inlet head 64. After expelling the air, quickly insert the plug 65 into the air inlet head 64. As the air in the squeeze body 62 decreases, the pressure is lower than the air pressure inside the body. Under the action of the negative pressure principle, the liquid in the mouth will flow in from the guide hole 11 and flow through the first connecting component 2, the straight rod 3, the second connecting component 4 and the guide tube 5 in sequence, and finally flow into the squeeze body 62, completing the suction of oral secretions and saliva.
[0044] In a specific embodiment, such as Figure 3The first connecting component 2 includes a plug 21, a displacement hole 22, a compression spring 23, a slot 24, an internal thread 25, a mounting post 26, and a triangular top block 27. The mounting post 26 has a drainage groove inside, and a slot 24 is opened on one end surface of the mounting post 26. The slot 24 is located outside the drainage groove and has an internal thread 25. The plug 21 is located on the other end surface of the mounting post 26. Several displacement holes 22 are provided on the outer surface of the plug 21. One end of the compression spring 23 is installed on the side wall of the displacement hole 22, and the other end of the compression spring 23 is connected to the triangular top block 27. The insert 21 is used to connect the mounting post 26 to the liquid suction ball 1. This insertion method enables a quick connection between the liquid suction ball 1 and the first connecting assembly 2, improving treatment efficiency. The slot 24 is used for the insertion of the straight rod 3, thereby achieving a quick connection. Furthermore, the slot 24, in conjunction with the internal thread 25, not only achieves a quick connection but also prevents liquid leakage through the tight gap between the threads. The threaded connection also makes the connection more secure. After connecting the first connecting assembly 2 to the liquid suction ball 1, the compression spring... The pressure of spring 23 drives the triangular apex 27 to move outward and insert it into the inner wall of the annular block 14, thereby making the connection between the liquid suction ball 1 and the first connecting assembly 2 tighter. The displacement hole 22 is used to limit the movement direction of the triangular apex 27. When it is necessary to remove the liquid suction ball 1, due to the elastic structure of the liquid suction ball 1 itself, simply press the position of the triangular apex 27 to push the triangular apex 27 out of the liquid suction ball 1, and then quickly pull out the liquid suction ball 1. The compression spring 23 will drive the triangular apex 27 to reset, which facilitates the next limit. After the liquid suction ball 1 is connected to the first connecting assembly 2, it resembles a nipple structure, which can better fit the baby.
[0045] In a specific embodiment, such as Figure 4 The second connecting component 4 includes a connecting post 41, an extension block 42, and elastic tabs 43. The right end surface structure of the connecting post 41 is the same as the left end surface structure of the first connecting component 2. The extension block 42 is installed on the left end of the connecting post 41, and several elastic tabs 43 are installed on the left end surface of the extension block 42. The second connecting component 4 is provided with an internal thread 25 and a slot 24 with the same structure, which is for installing the straight rod 3. The elastic tabs 43 are used not only to limit the flow tube 5, but also to change the diameter of the tube, making it easier to insert into the flow tube 5. The limiting method of the elastic tabs 43 is through the annular protrusion on its outer surface, which abuts against the inner wall of the flow tube 5, thereby limiting the flow tube 5. The extension block 42 can better guide the liquid into the flow tube 5.
[0046] In a specific embodiment, such as Figure 5The liquid suction ball 1 includes a guide hole 11, spherical protrusions 12, a sphere 13, and an annular block 14. The sphere 13 has a hollow interior, and several spherical protrusions 12 are installed on its outer surface. The guide hole 11 is formed in the spherical protrusions 12, with one end of the guide hole 11 extending out of the spherical protrusion 12 and the other end extending towards the sphere 13 and communicating with the hollow structure. The annular block 14 is installed at the left end of the sphere 13, and the right end of the first connecting component 2 is inserted into the annular block 14. The liquid suction ball 1 has two configurations: one with spherical protrusions 12 and the other without. The spherical protrusions 12 are designed to rest against the oral cavity wall when inserted into the mouth, supporting the ball 13 and preventing it from entering the esophagus. Figure 5 The opening of the guide hole 11 shown is only one case. The guide hole 11 can be opened at any position on the surface of the spherical protrusion 12, as long as it can eventually extend into the sphere 13 and communicate with the hollow structure. For the liquid attraction ball 1 without the spherical protrusion 12, the guide hole 11 can be opened directly on the sphere 13. The annular block 14 is set to better cooperate and connect with the first connecting component 2, so that the triangular top block 27 abuts against the inner wall of the sphere 13 to achieve the limit.
[0047] In one specific embodiment, the liquid suction ball 1 is made of thermoplastic elastomer (TPE). TPE is a commonly used material for nipples, which can ensure a certain degree of hardness while preventing injury to the baby when biting.
[0048] In a specific embodiment, such as Figure 6 The straight rod 3 has an external thread 31 on its outer surface. The external threads 31 are arranged in pairs and are located on the outer side of the end of the straight rod 3. The straight rod 3 is used by the user to grip it and prevent the liquid suction ball 1 from falling too deep. The external thread 31 mates with the internal thread 25 to complete the connection between the straight rod 3 and the first connecting component 2 and the second connecting component 4. The straight rod 3 is a rigid tube, while the guide tube 5 is a flexible tube. If the user grips the guide tube 5, it will cause the drainage to be obstructed.
[0049] In a specific embodiment, such as Figure 7 The negative pressure ball 6 includes a plug 61, a compression body 62, a connecting cover 63, an air inlet head 64, and a plug 65. The plug 61 is installed on the upper end of the connecting cover 63 and is inserted into the guide tube 5. The air inlet head 64 is installed in the connecting cover 63, and the plug 65 is inserted into the upper end of the air inlet head 64. The compression body 62 is installed below the connecting cover 63 and has a hollow internal structure. The negative pressure ball 6 is similar in structure to a traditional negative pressure ball, with the same usage and structure. The plug 61 is used to connect to the guide tube 5 to guide the liquid into the compression body 62. The compression body 62 is used to generate negative pressure, and the surface of the compression body 62 is marked with graduations for recording the volume. The air inlet head 64 is used to expel air from the compression body 62.
[0050] In a specific embodiment, such as Figure 8 The extruded body 62 is made of silicone. Silicone is used so that the extruded body 62 can deform.
[0051] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.
Claims
1. A secretion suction device which can be rapidly replaced with parts and assembled, characterized by, include: The first connecting component (2) has a liquid suction ball (1) connected to its right end surface, and a straight rod (3) is inserted into the left end of the first connecting component (2). The second connecting component (4) has a guide tube (5) connected to its left end surface, and the other end of the straight rod (3) is inserted into the right end of the second connecting component (4); A negative pressure ball (6) is connected to the other end of the guide tube (5); The first connection component (2) includes: The mounting post (26) has a drainage groove inside. A slot (24) is opened on one end surface of the mounting post (26). The slot (24) is located outside the drainage groove and has an internal thread (25). Insert (21) is disposed on the other end surface of the mounting post (26), and a plurality of displacement holes (22) are provided on the outer surface of the insert (21). A compression spring (23) is installed at one end on the side wall of the displacement hole (22), and the other end of the compression spring (23) is connected to a triangular apex block (27). The second connection component (4) includes: The right end surface structure of the connecting column (41) is the same as the left end surface structure of the first connecting component (2); An extension block (42) is installed on the left end of the connecting post (41), and several elastic paddles (43) are installed on the left end surface of the extension block (42).
2. The exudate aspiration device of claim 1, wherein, The liquid attraction ball (1) comprises: The sphere (13) has a hollow interior and a number of spherical protrusions (12) are installed on the outer surface of the sphere (13). A flow guide hole (11) is formed in the spherical protrusion (12). One end of the flow guide hole (11) extends out of the spherical protrusion (12), and the other end of the flow guide hole (11) extends toward the sphere (13) and communicates with the hollow structure. An annular block (14) is installed at the left end of the sphere (13), and the right end of the first connecting component (2) is inserted into the annular block (14).
3. The disposable secretion drainage device capable of quick replacement of parts and assembly according to claim 1, wherein, The liquid attraction ball (1) is made of thermoplastic elastomer (TPE).
4. The disposable secretion drainage device capable of quick replacement of parts and assembly according to claim 1, wherein, The straight rod (3) has an external thread (31) on its outer surface. The external threads (31) are arranged in pairs and are located on the outer side of the end of the straight rod (3).
5. The disposable secretion drainage device capable of quick replacement of parts and assembly according to claim 1, wherein, The negative pressure ball (6) includes: The connecting cover (63) has a plug (61) installed at its upper end, and the plug (61) is inserted into the guide tube (5); An air inlet (64) is installed in the connecting cover (63), and a plug (65) is inserted into the upper end of the air inlet (64). The extrusion body (62) is installed below the connecting cover (63), and the interior of the extrusion body (62) is a hollow structure.
6. The quickly replaceable parts and assembled exudate suction apparatus of claim 5, wherein, The extrusion body (62) is made of silicone.