Pulmonary alveolar washing device

Abstract

The utility model discloses a pulmonary alveolar lavatory which comprises a hose, a balloon is sleeved at the lower end of the hose, an air inlet hose is fixedly arranged on one side of the balloon in a penetrating manner, a soft sleeve is fixedly arranged at one end, far away from the balloon, of the air inlet hose, an air pump is arranged on the outer side of the soft sleeve, and an air outlet hard tube is fixedly arranged on the side wall of the air pump. The end, away from the air pump, of the air outlet hard tube is detachably inserted into the soft sleeve in a sealed mode, a water injection hard tube or a negative pressure aspirator is detachably arranged at the top of the soft tube in a sealed mode, a first empty groove and a second empty groove are formed in the inner wall of the balloon, a pressure sensor is fixedly embedded into the first empty groove, and a strain sensor is fixedly embedded into the second empty groove. The utility model solves the problems that the recovered pulmonary alveolar lavage fluid is not qualified and the cells of the pulmonary alveolar lavage fluid are difficult to be classified and counted accurately due to the fact that the recovered lavage fluid is difficult to be completely lavaged from the bronchus of a certain lung section when the pulmonary alveolar lavage fluid of the certain lung section is lavaged.

Description

Technical Field

[0001] This utility model relates to the field of medical technology, and in particular to an alveolar lavage device. Background Technology

[0002] Bronchoalveolar lavage (BAL) is a technique that involves injecting lavage fluid into the bronchi and then recovering the fluid for cytological, microbiological, and immunological examinations. This method is of great significance in the clinical diagnosis of lung diseases, especially diffuse lung diseases.

[0003] In clinical practice, when performing bronchoalveolar lavage on a specific lung segment, incomplete filling of the bladder between the bladder and the bronchus makes it difficult to ensure that the recovered lavage fluid comes entirely from that specific lung segment. Often, it mixes with lavage fluid from surrounding lung segments, resulting in substandard recovered lavage fluid and making it difficult to accurately classify and count cells in the lavage fluid. To address these issues, this invention proposes an alveolar lavage device. Utility Model Content

[0004] In view of the defects of the existing technology, the purpose of this utility model is to provide an alveolar lavage device.

[0005] To achieve the above objectives, this utility model provides an alveolar lavage device, including a flexible tube. A balloon is fitted onto the lower end of the flexible tube. An air inlet tube is fixedly installed through one side of the balloon. A soft sleeve is fixedly installed at the end of the air inlet tube away from the balloon. An air pump is installed outside the soft sleeve. An air outlet tube is fixedly installed on the side wall of the air pump. The end of the air outlet tube away from the air pump is detachably and sealed inside the soft sleeve. A water injection tube or a negative pressure suction device is detachably and sealed at the top of the flexible tube. A first slot and a second slot are provided on the inner wall of the balloon. A pressure sensor is embedded and fixedly installed in the first slot, and a strain sensor is embedded and fixedly installed in the second slot. Both the pressure sensor and the strain sensor are connected to an external device via a wireless network. The external device is equipped with a display screen and a CPU controller, which is electrically connected to the air pump.

[0006] Furthermore, the exhaust pipe is truncated cone-shaped, and the thickness of the exhaust pipe near the air pump is greater than the thickness of other parts. A start button is installed on the front of the air pump, and the start button is electrically connected to the air pump.

[0007] Furthermore, a receiving tube is fixedly installed at the top of the water injection tube, the receiving tube contains physiological saline, and a heating tube is fixedly installed on the inner side of the receiving tube.

[0008] Furthermore, a temperature sensor is installed on the lower inner wall of the receiving tube, and a solenoid valve is fixedly installed at the bottom of the receiving tube. The temperature sensor is located below the heating tube and below the solenoid valve. The temperature sensor is electrically connected to the temperature controller, and the temperature controller is electrically connected to the solenoid valve.

[0009] Furthermore, the water injection hard pipe is arranged in a frustum shape, and the thickness of the water injection hard pipe near the receiving pipe is greater than the thickness of other positions. The water injection hard pipe is detachably and sealedly inserted into the flexible hose.

[0010] Furthermore, a suction tube is fixedly installed at the bottom of the negative pressure aspirator. The suction tube is truncated cone-shaped, and the thickness of the suction tube on the side near the negative pressure aspirator is greater than the thickness at other locations. The suction tube is detachably and sealed inside the flexible tube.

[0011] Furthermore, a miniature camera is embedded and fixedly installed at the bottom end of the hose, and at least three miniature cameras are provided, which are arranged in a ring at equal angles at the end of the hose.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The system comprises a balloon, air pump, flexible cannula, water injection tubing, negative pressure suction device, pressure sensor, and strain sensor. The tubing is guided through a bronchoscope to the section of bronchus requiring irrigation. The air pump inflates the balloon. The pressure and strain sensors are directly embedded within the balloon. The pressure sensor measures the internal pressure, while the strain sensor measures the balloon's deformation, thus inferring its inflation status. The data from these sensors is displayed on an external screen, allowing medical personnel to monitor the balloon's pressure and inflation status in real time. When the pressure and strain sensor readings exceed a certain value, a signal is transmitted to the CPU controller. The controller stops the air pump to prevent over-inflation of the balloon and bronchial damage. After the balloon completely blocks the opening of the bronchus that needs lavage, saline solution is injected through the water injection tube to ensure full contact between the saline solution and the alveoli. The water injection tube is then removed, and the inhalation tube is inserted into the flexible tube to connect to the negative pressure suction device. The negative pressure suction device is then activated to begin collecting the bronchoalveolar lavage fluid. After collecting the bronchoalveolar lavage fluid, the balloon is deflated and the flexible tube is removed from the bronchoscope. The operation is then complete. This operation can be repeated until the required amount of bronchoalveolar lavage fluid is collected. This invention significantly improves the pass rate of bronchoalveolar lavage fluid and reduces the difficulty in performing the next step of cell classification and counting due to unqualified bronchoalveolar lavage fluid in clinical practice.

[0014] The system incorporates a heating element, a temperature sensor, and a solenoid valve. Physiological saline solution is injected into the receiving tube. The heating element rapidly heats the saline solution, and the temperature sensor detects its temperature. Once the temperature approaches body temperature, the temperature controller opens the solenoid valve, allowing the saline solution to be injected into the alveoli. This ensures the injected saline solution remains stable and close to body temperature, minimizing stimulation to the alveoli.

[0015] By incorporating a miniature camera embedded in the bottom of the tubing, the camera transmits images to the display screen of an external device, allowing doctors to visually observe the flow and recovery of the irrigation fluid, thus improving the accuracy of the procedure. Attached Figure Description

[0016] To more clearly illustrate the solutions in this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a front view of the negative pressure suction device provided by this utility model during installation;

[0018] Figure 2 This is a front view of the installation receiving tube provided by this utility model;

[0019] Figure 3 This is a cross-sectional view of the receiving tube provided by this utility model;

[0020] Figure 4 This is a cross-sectional view of the balloon provided by this utility model;

[0021] Figure 5 This is a structural schematic diagram provided by this utility model, a left view of the bottom end of the hose.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Hose; 2. Balloon; 3. Inlet hose; 4. Water injection tube; 5. Receiving tube; 6. Soft sleeve; 7. Second cavity; 8. Strain sensor; 9. First cavity; 10. Pressure sensor; 11. Air pump; 12. Outlet tube; 13. Start button; 14. Heating tube; 15. Temperature sensor; 16. Solenoid valve; 17. Miniature camera; 18. Negative pressure suction device; 19. Suction tube. Detailed Implementation

[0024] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] The terms "comprising" and "having," and any variations thereof, used in the specification, claims, and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order.

[0026] Please see Figure 1-5 A type of alveolar lavage device includes a flexible tube 1, with a balloon 2 fitted to the lower end of the tube 1. The tube 1 and balloon 2 are used to insert into a segment of the bronchus that needs lavage. An air inlet tube 3 is fixedly installed through one side of the balloon 2. A flexible sleeve 6 is fixedly installed at the end of the air inlet tube 3 away from the balloon 2. An air pump 11 is installed on the outside of the flexible sleeve 6. A start button 13 is installed on the front of the air pump 11 and is electrically connected to the air pump 11. When the tube 1 is guided to the segment of the bronchus that needs lavage through a bronchoscope, the air pump 11 is started and inflates the balloon 2. An outlet rigid tube 12 is fixedly installed on the side wall of the air pump 11. The outlet rigid tube 12 is frustoconical in shape, and the thickness of the outlet rigid tube 12 near the air pump 11 is greater than the thickness of other parts. The air outlet hard tube 12 is detachably and sealed inside the soft sleeve 6 as it is slowly inserted into the soft sleeve 6. The top of the hose 1 is detachably and sealed with a water injection hard tube 4 or a negative pressure suction device 18. The water injection hard tube 4 is truncated cone-shaped, and the thickness of the water injection hard tube 4 near the receiving tube 5 is greater than the thickness of other parts, so that the water injection hard tube 4 is sealed as it is slowly inserted into the hose 1. The bottom of the negative pressure suction device 18 is fixedly provided with a suction hard tube 19. The suction hard tube 19 is truncated cone-shaped, and the thickness of the suction hard tube 19 near the negative pressure suction device 18 is greater than the thickness of other parts, so that the suction hard tube 19 is sealed as it is slowly inserted into the hose 1.

[0027] The inner wall of the balloon 2 has a first groove 9 and a second groove 7. A pressure sensor 10 is embedded and fixedly installed in the first groove 9, and a strain sensor 8 is embedded and fixedly installed in the second groove 7. Both the pressure sensor 10 and the strain sensor 8 are connected to an external device via a wireless network. The pressure sensor 10 is used to measure the pressure inside the balloon 2, and the strain sensor is used to measure the deformation of the balloon 2 to infer the inflation state. The external device has a display screen and a CPU controller. The CPU controller is electrically connected to the air pump 11. Force sensor 10 and strain sensor 8 display the detected data on the external device's screen, facilitating real-time monitoring of the balloon's pressure and inflation status by medical personnel. The pressure sensor 10 and strain sensor 8 are directly embedded within the balloon 2. During balloon 2 inflation, these sensors promptly detect air pressure and deformation, displaying the data on the screen for easy monitoring. When the data detected by the pressure sensor 10 and strain sensor 8 exceeds a certain value, a signal is transmitted to the CPU controller. The CPU controller then stops the air pump 11 to prevent over-inflation of the balloon and subsequent bronchial damage. During inflation, balloon 2 completely blocks the opening of the bronchus segment requiring lavage, effectively preventing the entry of alveolar lavage fluid from surrounding bronchial segments during lavage, thus improving the quality of the recovered alveolar lavage fluid.

[0028] After the entire balloon 2 completely blocks the opening of the bronchus that needs lavage, normal saline is injected through the water injection tube 4 to allow the normal saline to fully contact the alveoli. Then, the water injection tube 4 is removed, and the inhalation tube 19 is inserted into the tubing 1 to connect to the negative pressure suction device 18. The negative pressure suction device 18 is started to collect the alveolar lavage fluid. After the alveolar lavage fluid is collected, the balloon 2 is deflated and the tubing 1 is withdrawn from the bronchoscope. The operation is then complete. This operation can be repeated until the required amount of alveolar lavage fluid is collected.

[0029] As an improvement to the above technical solution, a receiving tube 5 is fixedly installed at the top of the water injection tube 4. The receiving tube 5 contains physiological saline. A heating tube 14 is fixedly installed on the inner side of the receiving tube 5. A temperature sensor 15 is installed on the inner wall of the lower end of the receiving tube 5. A solenoid valve 16 is fixedly installed at the bottom of the receiving tube 5. The temperature sensor 15 is located below the heating tube 14 and below the solenoid valve 16. The temperature sensor 15 is electrically connected to the temperature controller, and the temperature controller is electrically connected to the solenoid valve 16. When physiological saline is injected into the receiving tube 5, the heating tube 14 rapidly heats the physiological saline. The temperature sensor 15 senses the temperature of the physiological saline. When the temperature is close to the human body temperature, the temperature controller controls the solenoid valve 16 to open, and the physiological saline is injected into the alveoli. This ensures that the injected physiological saline is stable and close to the body temperature, reducing stimulation to the alveoli.

[0030] As an improvement to the above technical solution, a miniature camera 17 is embedded and fixedly installed at the bottom end of the tubing 1. At least three miniature cameras 17 are provided. The miniature cameras 17 are arranged in a ring at equal angles at the end of the tubing 1. The miniature cameras 17 transmit images to the display screen of an external device, so that doctors can intuitively see the flow and recovery of the irrigation fluid and improve the accuracy of the operation.

[0031] The working principle and usage of this utility model:

[0032] In use, the tubing 1 is guided through a bronchoscope to the section of the bronchus requiring lavage. The air pump 11 is then activated to inflate the balloon 2. The pressure sensor 10 and strain sensor 8 are directly embedded inside the balloon 2. The pressure sensor 10 measures the internal pressure of the balloon 2, and the strain sensor measures the deformation of the balloon 2 to infer its inflation status. The data detected by the pressure sensor 10 and strain sensor 8 is displayed on an external device screen, allowing medical personnel to monitor the balloon's pressure and inflation status in real time. When the data detected by the pressure sensor 10 and strain sensor 8 exceeds a certain value, a signal is transmitted to the CPU controller. The CPU controller then stops the air pump 11 to prevent over-inflation of the balloon and subsequent bronchial damage. Once the entire balloon 2 completely blocks the opening of the bronchus requiring lavage, saline solution is injected through the water injection tube 4 to ensure sufficient contact between the saline solution and the alveoli. The water injection tube 4 is then removed, and the inhalation tube 19 is inserted into the tubing 1 to connect to the negative pressure suction device 18. The negative pressure suction device 18 is then activated. The procedure begins with collecting bronchoalveolar lavage fluid. After collecting the fluid, the balloon 2 is deflated and the tubing 1 is withdrawn from the bronchoscope, completing the operation. This process can be repeated until the required amount of bronchoalveolar lavage fluid is collected. Normal saline is then injected into the receiving tube 5. The heating tube 14 rapidly heats the saline solution, and the temperature sensor 15 detects its temperature. When the temperature approaches body temperature, the temperature controller opens the solenoid valve 16, allowing the saline solution to be injected into the alveoli. This ensures the injected saline solution is stable and close to body temperature, reducing irritation to the alveoli. A miniature camera 17 is embedded and fixed at the bottom of the tubing 1. The camera transmits images to the display screen of an external device, allowing the doctor to visually observe the flow and collection of the lavage fluid, improving operational accuracy.

[0033] The above description is only used to illustrate the technical solution of this utility model, and is not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Any equivalent structural or procedural transformations made using the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An alveolar lavage device, characterized in that: The system includes a hose (1), with a balloon (2) fitted onto the lower end of the hose (1). An air inlet hose (3) is fixedly installed through one side of the balloon (2). A flexible sleeve (6) is fixedly installed at the end of the air inlet hose (3) away from the balloon (2). An air pump (11) is installed on the outside of the flexible sleeve (6). An air outlet hard pipe (12) is fixedly installed on the side wall of the air pump (11). The end of the air outlet hard pipe (12) away from the air pump (11) is detachably and sealed inside the flexible sleeve (6). The top of the hose (1) is detachably and sealed. The balloon (2) is equipped with a water injection tube (4) or a negative pressure suction device (18). The inner wall of the balloon (2) is provided with a first slot (9) and a second slot (7). A pressure sensor (10) is embedded and fixedly installed in the first slot (9), and a strain sensor (8) is embedded and fixedly installed in the second slot (7). Both the pressure sensor (10) and the strain sensor (8) are connected to an external device via a wireless network. The external device is equipped with a display screen and a CPU controller. The CPU controller is electrically connected to the air pump (11).

2. The alveolar lavage device according to claim 1, characterized in that: The exhaust pipe (12) is frustum shaped. The thickness of the exhaust pipe (12) near the air pump (11) is greater than the thickness of other parts. A start button (13) is installed on the front of the air pump (11). The start button (13) is electrically connected to the air pump (11).

3. The alveolar lavage device according to claim 1, characterized in that: The top of the water injection tube (4) is fixedly provided with a receiving tube (5), which contains physiological saline. A heating tube (14) is fixedly attached to the inner side of the receiving tube (5).

4. The alveolar lavage device according to claim 3, characterized in that: A temperature sensor (15) is installed on the inner wall of the lower end of the receiving tube (5). A solenoid valve (16) is fixedly installed at the bottom of the receiving tube (5). The temperature sensor (15) is located below the heating tube (14) and below the solenoid valve (16). The temperature sensor (15) is electrically connected to the temperature controller, and the temperature controller is electrically connected to the solenoid valve (16).

5. The alveolar lavage device according to claim 3, characterized in that: The water injection hard pipe (4) is arranged in a frustum shape. The thickness of the water injection hard pipe (4) on the side near the receiving pipe (5) is greater than the thickness at other positions. The water injection hard pipe (4) is detachably and sealed inside the hose (1).

6. The alveolar lavage device according to claim 1, characterized in that: The bottom of the negative pressure suction device (18) is fixedly provided with a suction tube (19). The suction tube (19) is truncated cone-shaped. The thickness of the suction tube (19) on the side near the negative pressure suction device (18) is greater than the thickness at other locations. The suction tube (19) is detachably and sealed inside the flexible tube (1).

7. The alveolar lavage device according to claim 1, characterized in that: A miniature camera (17) is embedded and fixed at the bottom end of the hose (1). At least three miniature cameras (17) are provided, and the miniature cameras (17) are arranged in a ring at equal angles at the end of the hose (1).

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