A portable sputum suction device

By incorporating a rotating opening and a rotating ring within the syringe, the size of the opening can be adjusted to limit the suction rate, thus solving the problem of uncontrollable suction speed in portable suction devices, avoiding airway damage, and improving the safety and convenience of operation.

CN224585105UActive Publication Date: 2026-08-04NORTH CHINA HEALTHCARE GRP FENGFENG GENERAL HOSPITAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NORTH CHINA HEALTHCARE GRP FENGFENG GENERAL HOSPITAL
Filing Date
2025-03-28
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

When existing portable suction devices use a syringe to generate negative pressure to aspirate sputum, it is difficult to control the suction speed manually, which means that suctioning must be completed in a short time. This can easily cause excessive negative pressure in the airway, thereby damaging the airway.

Method used

A rotating opening and a rotating ring are installed inside the syringe. The size of the opening is adjusted by rotating the opening to limit the aspiration rate and avoid excessive negative pressure.

Benefits of technology

Effectively control the suction speed, avoid respiratory tract damage, and improve operational safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a portable sputum suction device, including syringe, suction subassembly, rotating opening and push button, syringe is used to produce negative pressure, suction subassembly is used to place in respiratory tract to carry out suction, rotating opening sets up in syringe tube body, and rotating opening can rotate and adjust the size of opening, push button sets up on syringe tube body, and push button is connected to rotating opening to adjust rotating opening, the utility model discloses setting up the rotating opening with rotating ring and vane in syringe tube body, and the rotating ring can make vane rotate to the outside side to open the opening of rotating opening, and the rotating ring can make vane move to the inside to shrink the opening of rotating opening, and then realize the suction speed of syringe according to the patient condition restriction.
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Description

Technical Field

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

[0002] For patients with respiratory diseases and some elderly people with weakened physical functions, expectoration can be difficult, and sputum can easily accumulate in the respiratory tract, thus requiring the assistance of a suction device. For those who rely on suction devices long-term, portable suction devices can provide treatment more conveniently and reduce usage costs.

[0003] Currently, existing portable suction devices use a syringe to generate negative pressure to aspirate sputum through a suction tube. While this method is convenient, it requires inserting the suction tube into the patient's airway and holding their breath. This necessitates the operator completing the suction in a short time. However, existing portable suction devices require manual operation of the syringe. To expedite suction, the operator may increase the suction speed. Manual suction makes it difficult to control the suction speed, and excessively rapid suction can lead to excessive negative pressure in the airway, causing airway damage.

[0004] Therefore, the existing method of using a syringe to generate negative pressure to aspirate sputum has the problem that it is difficult to control the aspiration speed when aspirating manually, and the aspiration speed increases too quickly because the aspiration needs to be completed in a short time. This leads to excessive negative pressure in the airway and causes airway damage. Utility Model Content

[0005] The purpose of this invention is to provide a convenient suction device to solve the technical problems in the prior art where manual suction is difficult to limit the suction speed, and the suction speed increases too quickly due to the need to complete the suction in a short time, which in turn causes excessive negative pressure in the airway and damages the airway.

[0006] To solve the above-mentioned technical problems, this utility model specifically provides the following technical solution:

[0007] A portable suction device includes a syringe for generating negative pressure, and a suction assembly connected to the syringe suction port for inserting into the patient's airway to suction sputum.

[0008] The syringe has a rotating opening at one end of the tube near the suction port. The rotating opening separates the suction end of the syringe from the operating end of the syringe. The rotating opening can be rotated to adjust the size of the opening.

[0009] The syringe has a push button on the outside of its tube, which is connected to the rotating opening. Rotating the push button along the syringe tube adjusts the size of the rotating opening, thereby limiting the aspiration rate.

[0010] As a preferred embodiment of the present invention, the rotating opening has a rotating ring, the rotating ring is provided with a plurality of spirally distributed inclined grooves, and a plurality of blades are provided on one side of the rotating ring, the blades being in contact with adjacent blades;

[0011] Each blade is provided with a guide block, and each guide block is movably disposed within the inclined groove.

[0012] In a preferred embodiment of this utility model, the syringe is provided with an annular clamp, the rotating opening is clamped in the annular clamp, and the inner diameter of the annular clamp is the same as the inner diameter of the rotating ring.

[0013] In a preferred embodiment of this utility model, a connector is formed on the outer side of the rotating ring, and an adjustment groove is provided on the body of the syringe. The connector passes through the adjustment groove and is connected to the push button.

[0014] As a preferred embodiment of the present invention, the syringe tube is provided with a grip handle at one end near the operating end, and the operating end of the syringe is located inside the grip handle.

[0015] In a preferred embodiment of the present invention, the suction assembly includes a suction tube and a sputum reservoir, the syringe is connected to the upper part of the sputum reservoir through a connecting tube, and the suction tube is connected to the interior of the sputum reservoir.

[0016] Compared with the prior art, this utility model has the following advantages:

[0017] This invention features a rotating opening with a rotating ring and a blade inside the syringe barrel. Rotating the ring clockwise causes the blade to rotate outward, thus opening the rotating opening. Rotating the ring counterclockwise causes the blade to move inward, thus closing the rotating opening. This allows the syringe's suction speed to be limited according to the patient's condition. Attached Figure Description

[0018] 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.

[0019] Figure 1 A schematic diagram of the structure of a portable suction device is provided for embodiments of this utility model;

[0020] Figure 2 A schematic diagram of the rotating opening portion is provided for an embodiment of this utility model;

[0021] Figure 3 A schematic diagram of the annular clamping plate structure is provided for an embodiment of this utility model.

[0022] The labels in the diagram represent the following:

[0023] 1- Syringe; 2- Suction assembly; 3- Rotating opening; 4- Push button; 5- Grip handle;

[0024] 11-Annular clamp; 12-Adjusting groove; 13-Connecting tube; 21-Suction tube; 22-Sputum reservoir; 31-Rotating ring; 32-Blade;

[0025] 311- Inclined groove; 312- Connector; 321- Guide block. 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] like Figure 1 As shown, this utility model provides a convenient sputum suction device, including a syringe 1, which is used to generate negative pressure. The syringe 1 has a suction port connected to a suction component 2, which is used to insert into the patient's airway to suction sputum.

[0028] The syringe 1 has a rotating opening 3 at the end of the tube near the suction port. The rotating opening 3 separates the suction end of the syringe 1 from the operating end of the syringe 1. The rotating opening 3 can be rotated to adjust the opening size.

[0029] The syringe 1 has a push button 4 on the outside of its tube. The push button 4 is connected to the rotating opening 3. Rotating the push button 4 along the tube of the syringe 1 can adjust the size of the rotating opening 3, thereby limiting the aspiration rate.

[0030] In this embodiment, a syringe 1 is connected to a suction assembly 2, and a rotating opening 3 is provided inside the syringe 1. A push button 4 is provided on the syringe 1 tube. Rotating the push button 4 can adjust the size of the rotating opening 3, thereby limiting the suction rate of the syringe according to the patient's condition.

[0031] Compared to existing methods that directly generate negative pressure to aspirate sputum using an injection syringe, this embodiment sets a rotating opening 3 inside the syringe 1 and limits the aspiration rate of the syringe 1 by adjusting the size of the rotating opening 3. This limits the aspiration rate within the aspiration assembly 2 when the syringe 1 increases its aspiration rate, thus avoiding excessive negative pressure that could damage the respiratory tract.

[0032] To achieve the opening and closing of the rotating opening 3, the following preferred embodiments are proposed.

[0033] like Figure 2 As shown, the rotating opening 3 has a rotating ring 31, and the rotating ring 31 is provided with a number of spirally distributed inclined grooves 311. A number of blades 32 are provided on one side of the rotating ring 31, and the blades 32 are all in contact with the adjacent blades 32.

[0034] Each blade 32 is provided with a guide block 321, and each guide block 321 is movably disposed in the inclined groove 311.

[0035] Specifically, when the rotating ring 31 rotates clockwise, the inner wall of the inclined groove 311 pushes the guide block 321 to move outward within the inclined groove 311, causing the blade 32 to rotate outward, thereby opening the opening on the inner side of the rotating ring 31. When the rotating ring 31 rotates counterclockwise, the inner wall of the inclined groove 311 pushes the guide block 321 to move inward within the rotating ring 31, causing the blade 32 to rotate inward and close, thereby closing the opening on the inner side of the rotating ring 31.

[0036] To secure the rotating opening 3 within the syringe 1, the following preferred embodiments are proposed.

[0037] like Figures 1 to 3 As shown, the syringe 1 is provided with an annular clamp 11 inside, and the rotating opening 3 is clamped inside the annular clamp 11, and the inner diameter of the annular clamp 11 is the same as the inner diameter of the rotating ring 31.

[0038] Specifically, the rotating opening 3 can be installed inside the annular clamp 11.

[0039] In order to enable the size of the rotating opening 3 to be adjusted outside the syringe 1 via the push button 4, the following preferred embodiment is proposed.

[0040] like Figure 2 As shown, a connector 312 is formed on the outer side of the rotating ring 31, and an adjustment groove 12 is provided on the tube of the syringe 1. The connector 312 passes through the adjustment groove 12 and is connected to the push button 4.

[0041] Specifically, when the push button 4 is rotated and adjusted on the syringe 1 tube, the rotating ring 31 can be rotated through the connector 312.

[0042] To facilitate easier operation of syringe 1 for aspiration, the following preferred embodiments are proposed.

[0043] like Figure 1 As shown, a grip handle 5 is provided at the end of the syringe 1 near the operating end, and the operating end of the syringe 1 is located inside the grip handle 5.

[0044] Specifically, by simultaneously holding the operating end of syringe 1 and the handle 5 and squeezing them, the operating end of syringe 1 can be pulled to perform aspiration.

[0045] In order to enable the suction assembly 2 to be placed in the respiratory tract for suction, the following preferred embodiments are proposed.

[0046] like Figure 1 As shown, the suction assembly 2 includes a suction tube 21 and a sputum reservoir 22. The syringe 1 is connected to the upper part of the sputum reservoir 22 through a connecting tube 13, and the suction tube 21 is connected to the interior of the sputum reservoir 22.

[0047] Specifically, when using this device, the suction tube 21 is placed in the patient's airway, and the sputum is aspirated into the sputum reservoir 22 by pulling the syringe 1.

[0048] In this embodiment, when using the device, push the push button 4 to adjust the size of the rotating opening 3 according to the patient's condition, place the suction tube 21 in the patient's airway, hold the handle 5 and the operating end of the syringe 1, and squeeze from slow to fast to draw sputum into the sputum reservoir 22.

[0049] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A portable sputum suction device, characterized by comprising: Includes a syringe (1) for generating negative pressure, and a suction assembly (2) is connected to the suction port of the syringe (1) for inserting into the patient's airway to suction sputum; The syringe (1) has a rotating opening (3) at one end of its tube near the suction port. The rotating opening (3) separates the suction end of the syringe (1) from the operating end of the syringe (1). The rotating opening (3) can be rotated to adjust the size of the opening. The syringe (1) has a push button (4) on the outside of its tube. The push button (4) is connected to the rotating opening (3). Rotating the push button (4) along the tube of the syringe (1) can adjust the size of the rotating opening (3) and thus limit the suction rate.

2. The portable suction device according to claim 1, characterized in that, The rotating opening (3) has a rotating ring (31), and the rotating ring (31) is provided with a plurality of spirally distributed inclined grooves (311). A plurality of blades (32) are provided on one side of the rotating ring (31), and the blades (32) are all in contact with the adjacent blades (32). Each blade (32) is provided with a guide block (321), and each guide block (321) is movably disposed in the inclined groove (311).

3. A portable suction device according to claim 2, characterized in that, The syringe (1) is provided with an annular clamp (11) inside, and the rotating opening (3) is clamped in the annular clamp (11), and the inner diameter of the annular clamp (11) is the same as the inner diameter of the rotating ring (31).

4. A portable suction device according to claim 3, characterized in that, A connector (312) is formed on the outside of the rotating ring (31), and an adjustment groove (12) is provided on the tube of the syringe (1). The connector (312) passes through the adjustment groove (12) and is connected to the push button (4).

5. A portable suction device according to claim 1, characterized in that, The syringe (1) has a handle (5) at one end of its tube near the operating end, and the operating end of the syringe (1) is located inside the handle (5).

6. A portable suction device according to claim 1, characterized in that, The suction assembly (2) includes a suction tube (21) and a sputum reservoir (22). The syringe (1) is connected to the upper part of the sputum reservoir (22) through a connecting tube (13), and the suction tube (21) is connected to the interior of the sputum reservoir (22).