A lung clearing and sputum discharging device for respiratory care and a method thereof

Abstract

The application discloses a lung clearing and sputum discharging device for respiratory department nursing and a method thereof, which comprises a shell, a first storage tank is mounted on the outside of the shell, a liquid leading pump is mounted in the inside of the shell, an air inlet of the liquid leading pump is connected with the first storage tank in communication through a second negative pressure pipe, a first branch pipe is communicated with the top of the first storage tank, and a three-way electromagnetic valve is arranged at one end of the first branch pipe; the micro-pressure sensor on the inner wall of the breathing mask detects the breathing pressure fluctuation in real time and transmits the same to the controller, the exhalation phase and the inhalation phase are automatically identified, the liquid leading pump is started when exhaling, the sputum suction tube forms negative pressure, the sputum is sucked into the first storage tank, the liquid leading pump is closed when inhaling, the normal inhalation is prevented from being interfered, the safe sputum discharging synchronized with the breathing is realized, and in addition, the second branch pipe with a larger length can be switched to, lower negative pressure is obtained without changing the power of the liquid leading pump, and the high / low negative pressure mode switching is realized.

Description

Technical Field

[0001] This application relates to the field of lung clearing and sputum removal technology, specifically, to a lung clearing and sputum removal device and method for respiratory nursing. Background Technology

[0002] In respiratory clinical nursing, lung clearing and sputum removal are key nursing procedures for maintaining airway patency, improving ventilation, and preventing pulmonary infection and asphyxiation. In clinical practice, patients with reduced spontaneous sputum clearance due to chronic obstructive pulmonary disease, pneumonia, postoperative bed rest, or intensive care often experience sputum accumulation in the airways, leading to cough, wheezing, and dyspnea. In severe cases, this can cause airway obstruction, hypoxemia, and even respiratory failure.

[0003] However, existing negative pressure suction devices still have significant shortcomings in practical use: First, it cannot synchronize with the patient's breathing rhythm. Traditional sputum drainage devices mostly use continuous negative pressure suction. During the patient's inspiratory phase, the negative pressure may interfere with the normal airflow into the airway, causing the patient discomfort or choking. It often relies on medical staff to manually start and stop, which results in a delayed response and makes it difficult to achieve precise synchronization.

[0004] Secondly, the negative pressure intensity adjustment method is singular and easily causes airway damage. Some devices reduce suction by reducing the speed of the negative pressure pump or changing the valve opening, but this adjustment method often leads to large fluctuations in the negative pressure of the entire system and lacks a fine-grained switching mechanism for different patients and different sputum viscosity. Summary of the Invention

[0005] The purpose of this application is to provide a lung-clearing and sputum-expelling device and method for respiratory nursing, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: a lung-clearing and sputum-expelling device and method for respiratory nursing, comprising a housing, a first storage tank installed on the outside of the housing, a sputum pump installed inside the housing, the air inlet of the sputum pump being connected to the first storage tank via a second negative pressure pipe, a first branch pipe connected to the top of the first storage tank, a three-way solenoid valve provided at one end of the first branch pipe, and one end of the first branch pipe being connected to one of the air outlets of the three-way solenoid valve, the air inlet of the three-way solenoid valve being connected to the first negative pressure pipe, and a suction tube being connected to the end of the first negative pressure pipe; The suction tube is equipped with a breathing mask, the outer wall of which is fitted with a nested cylinder, the suction tube passes through the nested cylinder, a micro pressure sensor is installed on the inner wall of the breathing mask, a controller is installed inside the outer shell, the micro pressure sensor is signal-connected to the controller, and the controller is electrically connected to the siphon pump.

[0007] Preferably, the top of the first storage tank is connected to a second branch pipe, the length of the second branch pipe is greater than the length of the first branch pipe, the end of the second branch pipe away from the first storage tank is connected to another air outlet of the three-way solenoid valve, a pressure gauge is installed on the outer wall of the outer shell, the probe end of the pressure gauge is located inside the first storage tank, and both the pressure gauge and the three-way solenoid valve are electrically connected to the controller.

[0008] Preferably, a liquid level sensor is installed on the inner top of the first storage tank, and the liquid level sensor is signal-connected to the controller.

[0009] Preferably, a second storage tank is installed inside the outer shell, a one-way valve is installed on the top of the second storage tank, and the air outlet of the liquid pump is connected to a discharge pipe, one end of which is connected to the top of the second storage tank.

[0010] Preferably, two limiting ropes are symmetrically installed on the outer wall of the breathing mask.

[0011] Preferably, a switch assembly is mounted on the front surface of the housing, and the switch assembly is electrically connected to the controller via wires.

[0012] Preferably, the outer wall of the suction tube is covered with a handle, a hook is installed on one side of the outer shell, and the handle is located inside the hook.

[0013] Preferably, the outer wall of the breathing mask is covered with a silicone pad.

[0014] Preferably, the front surface of the housing is hinged with an access panel.

[0015] This application also provides a method for clearing lung sputum in respiratory nursing, including the following steps: S1: Place the breathing mask over the patient's mouth and nose, and insert the suction tube into the patient's airway through the nesting tube; S2: The micro-pressure sensor installed on the inner wall of the breathing mask detects the fluctuations in the patient's breathing pressure in real time and transmits the detection signal to the controller inside the outer shell; S3: The controller identifies the patient's expiratory and inspiratory phases based on the received pressure change signals; S4: When the controller detects that the patient is in the expiratory phase, it starts the sputum pump to create a negative pressure inside the first storage tank. This negative pressure is conducted along the first branch pipe, the three-way solenoid valve, and the first negative pressure pipe to the suction tube, which suctions out the sputum in the patient's airway. The sputum flows into the first storage tank for temporary storage along the pipeline. S5: When the controller detects that the patient is in the inspiratory phase, it shuts off the sputum pump to interrupt the negative pressure suction at the end of the suction catheter and avoids interfering with the patient's normal inspiration.

[0016] Compared with the prior art, the beneficial effects of this application are as follows: This application uses a micro-pressure sensor on the inner wall of the breathing mask to detect breathing pressure fluctuations in real time and transmits them to the controller, automatically identifying the expiratory and inspiratory phases. During exhalation, the suction pump is activated to create negative pressure in the suction tube, drawing sputum into the first storage tank. During inhalation, the suction pump is turned off to avoid interfering with normal inhalation, achieving safe sputum drainage synchronized with breathing. In addition, this application can also achieve high / low negative pressure mode switching by switching to a longer second branch tube without changing the power of the suction pump, safely reducing suction. Finally, the gas and sputum discharged by the suction pump are sent to the second storage tank through the discharge tube, and the gas is filtered by a one-way valve before being discharged to prevent sputum leakage. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the lung-clearing and sputum-expelling device and method for respiratory nursing according to an embodiment of this application; Figure 2 This is a partial cross-sectional structural schematic diagram of the lung-clearing and sputum-expelling device and method for respiratory nursing according to an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the first storage tank, the second storage tank, the breathing mask, and the sputum pump in the respiratory nursing lung clearing and expectoration device and method according to an embodiment of this application; Figure 4 Examples of this application Figure 3 Enlarged structural diagram of part A in the middle; Figure 5 Examples of this application Figure 3 An enlarged structural diagram of part B.

[0018] In the diagram: 1. Outer shell; 2. First storage tank; 3. First branch pipe; 4. First negative pressure pipe; 5. Handle; 6. Suction tube; 7. Breathing mask; 8. Second negative pressure pipe; 9. Hook; 10. Switch assembly; 11. Second branch pipe; 12. Inspection door panel; 14. Limit rope; 15. Fluid pump; 16. Second storage tank; 17. Discharge pipe; 18. One-way valve; 19. Controller; 20. Three-way solenoid valve; 21. Micro pressure sensor; 22. Nested cylinder; 23. Silicone pad; 24. Pressure gauge; 25. Liquid level sensor. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] Please see Figure 1The embodiments of this application provide a lung-clearing and sputum-expelling device and method for respiratory nursing, comprising: a housing 1.

[0021] Among them, such as Figures 1-4 As shown, a first storage tank 2 is installed on the outside of the outer shell 1, and a liquid pump 15 is installed inside the outer shell 1. The air inlet of the liquid pump 15 is connected to the first storage tank 2 through a second negative pressure pipe 8. A first branch pipe 3 is connected to the top of the first storage tank 2. A three-way solenoid valve 20 is provided at one end of the first branch pipe 3, and one end of the first branch pipe 3 is connected to one of the air outlets of the three-way solenoid valve 20. The air inlet of the three-way solenoid valve 20 is connected to a first negative pressure pipe 4, and the end of the first negative pressure pipe 4 is connected to a suction tube 6.

[0022] By starting the priming pump 15 and controlling the three-way solenoid valve 20 to connect the first negative pressure pipe 4 of the air inlet with the first branch pipe 3, the air inlet of the priming pump 15 draws air from the first storage tank 2 through the second negative pressure pipe 8, creating a negative pressure inside the first storage tank 2. This negative pressure is conducted along the first branch pipe 3, the three-way solenoid valve 20, and the first negative pressure pipe 4 to the suction tube 6, which suctions out the sputum in the airway. The sputum flows into the first storage tank 2 for temporary storage along the pipeline.

[0023] Furthermore, the top of the first storage tank 2 is connected to a second branch pipe 11, the length of which is greater than that of the first branch pipe 3. The end of the second branch pipe 11 away from the first storage tank 2 is connected to another air outlet of the three-way solenoid valve 20. A pressure gauge 24 is installed on the outer wall of the outer shell 1. The probe end of the pressure gauge 24 is located inside the first storage tank 2. Both the pressure gauge 24 and the three-way solenoid valve 20 are electrically connected to the controller 19.

[0024] In use, taking advantage of the structural feature that the second branch tube 11 is longer than the first branch tube 3, the two branches form different airflow resistances. The three-way solenoid valve 20 switches the passage under the control of the controller 19, outputting high and low negative pressure respectively to adapt to the airway tolerance of different patients. The pressure gauge 24 collects the negative pressure value inside the first storage tank 2 in real time and feeds it back to the controller 19, so that the system can monitor the negative pressure status in real time and keep the suction negative pressure always within the safe range.

[0025] In this embodiment, as Figures 1-5 As shown, a breathing mask 7 is provided on the suction tube 6. A nested tube 22 is embedded in the outer wall of the breathing mask 7. The suction tube 6 passes through the nested tube 22. A micro pressure sensor 21 is installed on the inner wall of the breathing mask 7. A controller 19 is installed inside the outer shell 1. The micro pressure sensor 21 is connected to the controller 19 by signal. The controller 19 is electrically connected to the siphon pump 15.

[0026] When in use, the breathing mask 7 is placed over the patient's mouth and nose, and the suction tube 6 can be inserted into the airway through the nested tube 22. The micro-pressure sensor 21 on the inner wall of the breathing mask 7 detects the breathing pressure fluctuations in real time and transmits the signal to the controller 19. The controller 19 identifies the expiratory and inspiratory phases based on the pressure changes. When the patient exhales, the controller 19 starts the drainage pump 15 and controls the suction tube 6 to suction out the sputum in the airway. When the patient inhales, the controller 19 turns off the drainage pump 15 to avoid interfering with normal inhalation, thereby achieving safe and efficient lung clearing and sputum removal synchronized with breathing.

[0027] The outer wall of the breathing mask 7 is symmetrically equipped with two limiting ropes 14. The limiting ropes 14 symmetrically arranged on both sides make it easy to tie and fix the breathing mask 7 to the patient's head, so that the breathing mask 7 can stably fit the mouth and nose and is not easy to loosen or shift. The outer wall of the breathing mask 7 is covered with a silicone pad 23. The silicone pad 23 is soft and friendly, conforms to the contour of the patient's face, improves wearing comfort and sealing fit, reduces facial pressure, and seals gaps to ensure that the micro-pressure sensor 21 accurately captures changes in the patient's breathing pressure.

[0028] In addition, a switch assembly 10 is installed on the front surface of the housing 1. The switch assembly 10 is electrically connected to the controller 19 through wires. The switch assembly 10 serves as a manual operation input terminal, which can manually start and stop the equipment, switch between high and low negative pressure modes, set working parameters, and send manual control commands to the controller 19.

[0029] like Figure 3 As shown, a liquid level sensor 25 is installed on the inner top of the first storage tank 2. The liquid level sensor 25 is connected to the controller 19. The liquid level sensor 25 monitors the liquid level of the sputum storage inside the first storage tank 2 in real time. When the sputum accumulation reaches the set upper limit, it sends a detection signal to the controller 19 in time to trigger a full liquid prompt or linkage shutdown.

[0030] Furthermore, a second storage tank 16 is installed inside the outer shell 1. A one-way valve 18 is installed on the top of the second storage tank 16. The air outlet of the liquid pump 15 is connected to a discharge pipe 17. One end of the discharge pipe 17 is connected to the top of the second storage tank 16. The second storage tank 16 is used to collect the waste gas and residual liquid containing trace amounts of sputum discharged by the liquid pump 15, realizing secondary closed collection and preventing pollutants from being directly discharged. The one-way valve 18 only allows the gas inside the tank to be discharged outward, preventing sputum leakage.

[0031] Specifically, refer to Figure 1 and Figure 2 The outer wall of the suction tube 6 is covered with a handle 5, and a hook 9 is installed on one side of the outer shell 1. The handle 5 is located inside the hook 9 and covers the outside of the suction tube 6, making it convenient for medical staff to hold and operate the tube for insertion and positioning. When not in use, the handle 5 can be placed in the hook 9 to neatly store the suction tube 6, avoid the tube being placed randomly or bent, and keep the overall equipment clean and orderly.

[0032] The front surface of the outer casing 1 is hinged with an inspection door 12. The hinged inspection door 12 allows operators to open the outer casing 1 at any time to inspect, maintain and clean the internal liquid pump 15, controller 19 and various pipelines.

[0033] Based on the above technical solution, the working steps of this solution are summarized as follows: During use, the breathing mask 7 is placed over the patient's mouth and nose. The suction tube 6 can be inserted into the airway through the nested tube 22. The micro-pressure sensor 21 on the inner wall of the breathing mask 7 monitors respiratory pressure fluctuations in real time and transmits the signal to the controller 19. The controller 19 identifies the expiratory and inspiratory phases based on pressure changes. When the patient exhales, the controller 19 starts the septic pump 15 and controls the three-way solenoid valve 20 to connect the first negative pressure pipe 4 of the air inlet to the first branch pipe 3, or to connect the first negative pressure pipe 4 of the air inlet to the first branch pipe 3. A negative pressure tube 4 is connected to a second branch tube 11. The air inlet of the sputum pump 15 draws air from the first storage tank 2 through the second negative pressure tube 8, creating a negative pressure inside the first storage tank 2. This negative pressure is conducted along the first branch tube 3 or the second branch tube 11 and through the three-way solenoid valve 20 and the first negative pressure tube 4 to the suction tube 6, which suctions out the sputum in the airway. The sputum flows into the first storage tank 2 for temporary storage. During the patient's inhalation phase, the controller 19 shuts off the sputum pump 15 to avoid interfering with normal inhalation, thereby achieving safe and efficient lung clearing and sputum removal synchronized with breathing.

[0034] In addition, the controller 19 can also switch the three-way solenoid valve 20 to the second branch pipe 11 passage. The length of the second branch pipe 11 is greater than that of the first branch pipe 3. When the suction pump 15 is working continuously, the longer second branch pipe 11 generates greater flow resistance, thereby forming a lower negative pressure at the end of the suction tube 6, realizing safe suction reduction. It is suitable for switching between high negative pressure intensity and low negative pressure intensity modes without changing the power of the suction pump 15. The pressure gauge 24 in this application is used to monitor the internal pressure of the first storage tank 2 in real time and feed it back to the controller 19. The controller 19 adjusts the operating status of the suction pump 15 accordingly to ensure that the negative pressure is always within a safe range. The liquid level sensor 25 at the top of the first storage tank 2 continuously detects the sputum level. When the liquid level exceeds the limit, it sends a signal to the controller 19 to prompt timely cleaning. The gas or a small amount of sputum discharged by the suction pump 15 is sent into the second storage tank 16 through the discharge pipe 17. The gas part is filtered by the one-way valve 18 and discharged to avoid leakage during sputum suction.

[0035] All parts not covered in this application are the same as or can be implemented using existing technology. Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lung-clearing and sputum-expelling device and method for respiratory nursing, comprising a housing (1), characterized in that: The outer shell (1) is equipped with a first storage tank (2) and a liquid pump (15) is installed inside the outer shell (1). The air inlet of the liquid pump (15) is connected to the first storage tank (2) through a second negative pressure pipe (8). The top of the first storage tank (2) is connected to a first branch pipe (3). One end of the first branch pipe (3) is equipped with a three-way solenoid valve (20), and one end of the first branch pipe (3) is connected to one of the air outlets of the three-way solenoid valve (20). The air inlet of the three-way solenoid valve (20) is connected to a first negative pressure pipe (4), and the end of the first negative pressure pipe (4) is connected to a suction tube (6). The suction tube (6) is equipped with a breathing mask (7), and the outer wall of the breathing mask (7) is fitted with a nesting tube (22). The suction tube (6) passes through the nesting tube (22). The inner wall of the breathing mask (7) is equipped with a micro pressure sensor (21). The inside of the outer shell (1) is equipped with a controller (19). The micro pressure sensor (21) is connected to the controller (19) by signal. The controller (19) is electrically connected to the priming pump (15).

2. The lung-clearing and sputum-expelling device and method for respiratory nursing according to claim 1, characterized in that: The top of the first storage tank (2) is connected to a second branch pipe (11), the length of the second branch pipe (11) is greater than the length of the first branch pipe (3), and the end of the second branch pipe (11) away from the first storage tank (2) is connected to another air outlet of the three-way solenoid valve (20). A pressure gauge (24) is installed on the outer wall of the outer shell (1), and the probe end of the pressure gauge (24) is located inside the first storage tank (2). The pressure gauge (24) and the three-way solenoid valve (20) are both electrically connected to the controller (19).

3. The lung-clearing and sputum-expelling device and method for respiratory nursing according to claim 1, characterized in that: A liquid level sensor (25) is installed on the inner top of the first storage tank (2), and the liquid level sensor (25) is connected to the controller (19) via signal.

4. The lung-clearing and sputum-expelling device and method for respiratory nursing according to claim 1, characterized in that: The outer shell (1) is equipped with a second storage tank (16), and a one-way valve (18) is installed on the top of the second storage tank (16). The air outlet of the liquid pump (15) is connected to a discharge pipe (17), and one end of the discharge pipe (17) is connected to the top of the second storage tank (16).

5. The lung-clearing and sputum-expelling device and method for respiratory nursing according to claim 1, characterized in that: Two limiting ropes (14) are symmetrically installed on the outer wall of the breathing mask (7).

6. The lung-clearing and sputum-expelling device and method for respiratory nursing according to claim 1, characterized in that: A switch assembly (10) is mounted on the front surface of the housing (1), and the switch assembly (10) is electrically connected to the controller (19) via a wire.

7. The lung-clearing and sputum-expelling device and method for respiratory nursing according to claim 1, characterized in that: The outer wall of the suction tube (6) is covered with a handle (5), and a hook (9) is installed on one side of the outer shell (1). The handle (5) is located inside the hook (9).

8. The lung-clearing and sputum-expelling device and method for respiratory nursing according to claim 5, characterized in that: The outer wall of the breathing mask (7) is covered with a silicone pad (23).

9. The lung-clearing and sputum-expelling device and method for respiratory nursing according to claim 1, characterized in that, Its features are: The front surface of the outer casing (1) is hinged with an inspection door panel (12).

10. A method for clearing lung sputum in respiratory nursing, characterized in that, Includes the following steps: S1: Place the breathing mask (7) over the patient's mouth and nose, and insert the suction tube (6) into the patient's airway through the nesting tube (22); S2: The micro-pressure sensor (21) installed on the inner wall of the breathing mask (7) detects the fluctuation of the patient's breathing pressure in real time and transmits the detection signal to the controller (19) inside the outer shell (1). S3: The controller (19) identifies the patient's expiratory and inspiratory phases based on the received pressure change signals; S4: When the patient is identified to be in the expiratory phase, the controller (19) starts the sputum pump (15) to create a negative pressure inside the first storage tank (2). This negative pressure is conducted along the first branch pipe (3), the three-way solenoid valve (20), and the first negative pressure pipe (4) to the suction tube (6) to suction out the sputum in the patient's airway. The sputum flows into the first storage tank (2) along the pipeline for temporary storage. S5: When the patient is identified as being in the inspiratory phase, the controller (19) shuts off the sputum pump (15) to interrupt the negative pressure suction at the end of the suction tube (6) and avoid interfering with the patient's normal inhalation.

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