Closed thoracic drainage device for pneumology department nursing

Abstract

The invention relates to the field of medical instruments, in particular to a thoracic cavity closed drainage device for pneumology department nursing, which comprises a drainage apparatus and a wearable monitor, the drainage apparatus is used for extracting hydrops in the thoracic cavity of the patient; the wearable monitor comprises a controller, an inertial sensor and a gyroscope, and the wearable monitor is used for being worn on the trunk of a patient and moving along with the trunk of the patient; the controller is used for acquiring information acquired by the inertial sensor and the gyroscope and judging the body position change direction and amplitude of the patient in the drainage process, and the controller is used for presetting a body position change standard which is the number of times that the patient completes the preset direction and amplitude change in the drainage process; the controller is used for judging whether the patient completes the body position changing standard or not in the drainage process. By the adoption of the technical scheme, whether the body position of the patient is fully changed in the pleural effusion process or not can be monitored, and the preset effusion release effect is achieved.

Description

Technical Field

[0001] The invention relates to the medical field, and in particular to a closed chest drainage device for respiratory nursing. Background Art

[0002] Closed thoracic drainage is an important medical technology used to treat pleural effusion, gas accumulation or infection. The thoracic cavity is composed of the chest wall, diaphragm and mediastinum, and contains important organs such as the lungs, heart and large blood vessels. The pleural cavity is a potential space between the visceral pleura and the parietal pleura. Under normal circumstances, it contains a small amount of lubricating fluid to reduce friction during breathing. When there is effusion, gas accumulation or infection in the thoracic cavity, such as pneumothorax, hemothorax, empyema or pleural effusion, these abnormal accumulations will compress the lung tissue, affect respiratory function, and even endanger life. Early thoracic drainage technology mainly used open drainage, but this method is prone to infection and has limited effect. With the development of medical technology, closed drainage technology has gradually matured, and the negative pressure of the pleural cavity is maintained by water seal bottles or modern drainage devices to prevent air reflux and reduce the risk of infection. The core principle of the closed drainage device is to use a water seal or a one-way valve mechanism to ensure that the fluid or gas in the thoracic cavity can be discharged smoothly while preventing external air from entering the thoracic cavity. Modern drainage systems, such as the Heimlich valve and digital drainage devices, have further improved the convenience and safety of operation and can monitor drainage conditions in real time. Closed chest drainage has a wide range of indications, including pneumothorax, hemothorax, empyema, and pleural effusion, but it should be used with caution in cases of coagulation disorders or severe cardiopulmonary insufficiency. In terms of operation technology, closed drainage requires accurate positioning of the puncture point, local anesthesia, insertion of the drainage tube, and connection of the drainage device. After surgery, the drainage situation must be closely monitored and complications such as infection must be prevented.

[0003] In the prior art, for example, patent publication number CN118924975A ​​discloses a closed chest drainage device, which monitors the drainage situation through an information feedback component so that medical staff can find problems in time. Patent publication number CN116983491A discloses a closed chest drainage bottle, which can monitor the amount of pleural fluid in the collection bottle and automatically clear the pipeline when it is blocked during the drainage process. Patent publication number CN109833528A discloses an intelligent visual closed chest drainage system, which assists the drainage process through a data collection device that monitors, collects and displays the closed chest drainage device and the human body status.

[0004] During closed chest drainage, patients usually need to remain semi-recumbent or side-lying to ensure that the effusion can be effectively drained out. During the patient's semi-recumbent or side-lying process, the patient can be guided to change his or her body position, which can help to fully drain the effusion. The principle is that the effusion may accumulate in different parts of the chest due to gravity. If the patient maintains the same body position for a long time, the effusion may accumulate in certain parts, and changing the body position can promote the release of the effusion in various parts. In the prior art, since the patient is not monitored at all times, it is difficult to know what kind of body position changes the patient has made, and it is also difficult to know whether the patient's body position change process can fully release the effusion in various parts of the chest. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a closed chest drainage device for respiratory care, which is used to monitor whether the patient has fully changed his body position during pleural effusion to achieve a preset effusion release effect.

[0006] In order to achieve the above-mentioned object, the technical solution of the present invention is as follows: a closed chest drainage device for respiratory nursing, comprising a drainage device and a wearable monitor; The drain is used to drain the patient's pleural effusion; The wearable monitor includes a controller, an inertial sensor and a gyroscope, and the wearable monitor is used to be worn on the patient's torso and follow the movement of the patient's torso; The controller is used to obtain the information collected by the inertial sensor and the gyroscope to determine the direction and amplitude of the patient's position change during the drainage process; the controller is also used to preset the position change standard, the change standard is the number of times the patient completes the preset direction and amplitude change during the drainage process, and the controller is used to determine whether the patient completes the position change standard during the drainage process based on the information collected by the inertial sensor and the gyroscope.

[0007] The above scheme has the following beneficial effects: 1. In this solution, the user can use the drain to drain the pleural effusion of the patient. After completing the drainage operation, the wearable monitor is worn on the patient's torso. The wearable monitor is equipped with an inertial sensor and a gyroscope. When the patient changes his position, the wearable monitor will change position with the patient's position change, thereby recording the patient's position change process.

[0008] 2. In this solution, medical staff can formulate body position change standards, that is, set the body position change indicators that patients need to complete during the drainage of pleural effusion. Patients can perform sufficient body position changes during the drainage of pleural effusion, which can promote the release of effusion in various parts of the pleural cavity. In the prior art, it is difficult for medical staff to supervise patients to change their body positions at all times. Even if they supervise, it is difficult to judge by naked eyes whether the amplitude and direction of the patient's multiple body position changes meet the requirements.

[0009] During the drainage process of the patient's pleural effusion, the controller will automatically record the patient's body position changes and amplitudes in all directions, and determine whether the patient has completed the body position change indicators through the established preset body position change standards, so as to achieve the effect of sufficiently promoting the release of effusion.

[0010] Furthermore, the controller is also used to determine the frequency with which the patient completes changes in preset direction and amplitude during the drainage process. When the frequency with which the patient completes changes in preset direction and amplitude within a unit time period is less than a preset value, the controller issues an alarm.

[0011] Beneficial effects: In addition to promoting the final release of effusion, the patient's position change can also reduce the accumulation of tissue or fibrin around the drain, reduce the risk of drain blockage, and improve the patient's force and ventilation conditions, and prevent complications such as pressure sores. However, unlike reaching the standard of position change, its subsequent effect requires maintaining a certain position frequency to achieve the corresponding effect. Therefore, frequency detection is introduced to enable patients to perform a more standardized and beneficial position change process.

[0012] Furthermore, the drainage device comprises a drainage tube, the drainage tube is detachably connected to a drainage bottle, and a one-way valve is arranged in the drainage tube; A viscosity sensor and a flow sensor are provided in the drainage tube. The controller is used to obtain the collected information of the viscosity sensor and the flow sensor, and judge the severity of the patient's pleural effusion based on the viscosity data and flow data of the collected information. The controller sets the body position change standard according to the severity of the patient's pleural effusion, wherein the number of times the preset direction and amplitude changes are completed is proportional to the severity of the patient's pleural effusion.

[0013] Beneficial effects: The drainage tube is used to drain the patient's pleural effusion, and the drainage bottle is used to collect the drained pleural effusion. The one-way valve can prevent the effusion from flowing back. The body position change standard can be set according to the severity of the patient's effusion, that is, patients with large amounts of effusion and high viscosity of the effusion require a stronger effect of promoting the release of the effusion to ensure that the patient's condition is effectively alleviated. Therefore, a viscosity sensor and a flow sensor are provided in the drainage tube, which can feedback the patient's effusion volume and effusion viscosity through the flow sensor and the viscosity sensor. The larger the amount of effusion, the stronger the effusion flow. The released flow per unit time can feedback the effusion flow intensity and thus the amount of effusion. By detecting the amount of effusion and the viscosity of the patient's effusion, the body position change standard can be modified to accommodate patients with different severities of pleural effusion.

[0014] Furthermore, a negative pressure absorber is provided on the drainage tube, and the controller is used to set the suction force of the negative pressure absorber according to the severity of the patient's pleural effusion.

[0015] Beneficial effects: The negative pressure aspirator can generate negative pressure to promote the drainage process, and the suction force of the negative pressure aspirator can be dynamically set according to the severity of the patient's pleural effusion.

[0016] Furthermore, a paired Hall sensor is provided between the drainage tube and the drainage bottle, and the Hall sensor is used to detect the matching state of the drainage tube and the drainage bottle. When the matching state is that the drainage bottle is separated from the drainage tube, the controller controls the one-way valve to close.

[0017] Beneficial effect: The Hall sensor can detect the change of magnetic field, so as to judge the matching of the drainage tube and the drainage bottle. When the drainage tube and the drainage bottle are separated, the controller controls the one-way valve to close, so as to cut off the release of the accumulated fluid and reduce the amount of the accumulated fluid spilling outside the drainage bottle.

[0018] Furthermore, the wearable monitor includes two pairing blocks, the inertial sensor and the gyroscope are fixedly connected to the pairing blocks, and adhesive tapes are provided on the bottom of the pairing blocks. The pairing blocks are respectively used to be adhered to the two sides of the patient's chest drainage port, and a photoelectric counter-radiation sensor is provided between the pairing blocks. The photoelectric counter-radiation sensor is used to detect whether the drainage tube is detached from the chest drainage port.

[0019] Beneficial effects: The wearable monitor consists of two paired blocks, which are respectively attached to the two sides of the patient's chest drainage port. The photoelectric cross-beam sensor can continuously conduct cross-beams and judge whether the drainage tube is detached from the chest drainage port through the change of the optical path, so as to respond to the situation of the drainage tube falling off in time.

[0020] Furthermore, it also includes a telescopic part, both ends of which are fixedly connected to the matching blocks. The controller is used to control the contraction of the telescopic part after the photoelectric corresponding sensor detects that the drainage tube is detached from the chest drainage port, so that the matching block drives the skin on both sides of the chest drainage port to tighten the chest drainage port.

[0021] Beneficial effect: When the drainage tube falls off, the accumulated fluid will still be released from the patient's chest drainage port. At this time, the accumulated fluid will not flow into the drainage bottle through the drainage tube, but will be directly released into the bed or ward. The telescopic part can shrink after detecting that the drainage tube has fallen off, thereby tightening the chest drainage port, reducing the release of accumulated fluid and reducing the contamination of the bed or ward by the accumulated fluid.

[0022] Furthermore, a water level sensor is provided in the drainage bottle.

[0023] Beneficial effect: The water level sensor can determine the load status of the drainage bottle, thereby prompting medical staff to replace the drainage bottle.

[0024] Furthermore, the controller is also provided with a wireless component, which is used to send an alarm to medical staff through the wireless component when the drainage bottle is separated from the drainage tube, when the drainage tube is separated from the chest drainage port, and when the water level sensor detection data exceeds a preset value.

[0025] Beneficial effects: The wireless component can provide remote communication capabilities, thereby sending messages to medical staff remotely. When the drainage bottle is separated from the drainage tube, the drainage tube is separated from the chest drainage port, and the water level sensor detection data exceeds the preset value, medical staff are required to go to the patient to reconnect the drainage bottle and the drainage tube, re-fix the drainage tube, and replace the drainage bottle.

[0026] Furthermore, the drainage bottle is fixedly connected with a pulling rope, and a pull ring is provided at one end of the pulling rope away from the drainage bottle.

[0027] Beneficial effects: The patient may have the need to get out of bed and move around, and the traction rope and the pull ring can allow the patient to pull up the drainage bottle and keep the drainage bottle in a position below the chest drainage port.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is an axonometric schematic diagram of an embodiment of a closed chest drainage device for respiratory care of the present invention; Figure 2 It is a front view schematic diagram of an embodiment of a closed chest drainage device for respiratory care of the present invention; Figure 3 It is an axonometric schematic diagram of a wearable monitor of an embodiment of a closed chest drainage device for respiratory care of the present invention; Figure 4 It is a cross-sectional schematic diagram of a drainage bottle of an embodiment of a closed chest drainage device for respiratory nursing of the present invention; Figure 5 The figure is a control logic diagram of an embodiment of a closed chest drainage device for respiratory care of the present invention.

[0030] The figure marks in the drawings of the specification include: 1. drainage device; 2. wearable monitor; 3. inertial sensor; 4. gyroscope; 5. drainage tube; 6. drainage bottle; 7. one-way valve; 8. viscosity sensor; 9. flow sensor; 10. negative pressure absorber; 11. Hall sensor; 12. matching block; 13. adhesive tape; 14. telescopic part; 15. photoelectric counter-radiation sensor; 16. water level sensor; 17. traction rope; 18. pull ring. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] The following is further described in detail through specific implementation methods: Embodiment 1:

[0035] As attached Figure 1-Figure 5 As shown: A closed chest drainage device for respiratory care, comprising a drain 1 and a wearable monitor 2; The drain device 1 is used to drain the pleural effusion of the patient. The drain device 1 comprises a drainage tube 5 . The drainage tube 5 is detachably connected to a drainage bottle 6 . A one-way valve 7 is installed in the drainage tube 5 .

[0036] The wearable monitor 2 includes a controller and two matching blocks 12. The bottom of the matching blocks 12 are both attached with adhesive tapes 13. The matching blocks 12 are respectively attached to the two sides of the chest drainage port of the patient. The matching blocks 12 are bolted with inertial sensors 3 and gyroscopes 4. The wearable monitor 2 is worn on the patient's trunk and moves with the patient's trunk.

[0037] The controller is used to obtain the collected information of the inertial sensor 3 and the gyroscope 4, and determine the direction and amplitude of the patient's position change during the drainage process. The controller is also used to preset the position change standard, and the change standard is the number of times the patient completes the preset direction and amplitude change during the drainage process. The controller is used to determine whether the patient completes the position change standard during the drainage process based on the collected information of the inertial sensor 3 and the gyroscope 4.

[0038] When in use, a chest drainage port is first constructed on the patient's torso through drainage surgery, and the drainage tube 5 is inserted into the patient's chest drainage port to construct a stable drainage pathway. After completing the drainage surgery of the drain 1, the wearable monitor 2 is worn on the patient's torso. The wearable monitor 2 is provided with an inertial sensor 3 and a gyroscope 4. When the patient changes his body position, the wearable monitor 2 will change its position with the patient's body position change, thereby recording the patient's body position change process.

[0039] Medical staff can formulate body position change standards, that is, set the body position change indicators that patients need to complete during the drainage of pleural effusion. Patients can perform sufficient body position changes during the drainage of pleural effusion, which can promote the release of effusion in various parts of the thoracic cavity. Usually, patients need to lie half-lying or side-lying for pleural effusion drainage, which can make the effusion in the thoracic cavity converge to the thoracic drainage port under the action of gravity. However, due to lesions in the thoracic cavity, the patient's thoracic environment is complex, and maintaining a single posture will cause fluid accumulation in the thoracic cavity. In the prior art, it is difficult for medical staff to supervise patients to change their body positions at all times. Even if supervision is performed, it is difficult to judge by the naked eye whether the amplitude and direction of the patient's multiple body position changes meet the requirements.

[0040] During the drainage of the pleural effusion in the patient's chest, the controller will automatically record the patient's position changes and amplitudes in all directions, and judge whether the patient has completed the position change index through the preset position change standard, so as to achieve the effect of promoting the release of the effusion. Medical staff can go to the patient for on-site confirmation at intervals, or check the patient's position changes recorded by the controller through remote communication to guide the patient to perform corresponding actions and improve the effect of releasing the effusion. At the same time, at the end of the drainage of the effusion, the controller can also be used to check whether the patient has completed the position change index, and before removing the drainage tube 5, guide the patient to perform the corresponding position change action to release the remaining effusion.

[0041] Embodiment 2:

[0042] The difference from the above embodiment is that the controller is also used to determine the frequency of the patient completing the preset direction and amplitude changes during the drainage process. When the frequency of the patient completing the preset direction and amplitude changes within a unit time period is less than a preset value, the controller issues an alarm. The controller can transmit the alarm information to the patient by electrically connecting a buzzer or an LED, etc., through the buzzer beeping and the LED flashing.

[0043] In addition to promoting the final release of effusion, the patient's position change can also reduce the accumulation of tissue or fibrin around the drain 1, reduce the risk of blockage of the drain 1, and improve the patient's force and ventilation conditions, and prevent complications such as pressure sores. However, unlike reaching the standard of position change, its subsequent effect requires maintaining a certain position frequency to achieve the corresponding effect. Therefore, frequency detection is introduced to enable patients to perform a more standardized and beneficial position change process.

[0044] Embodiment 3:

[0045] The difference from the above-mentioned embodiment is that a viscosity sensor 8 and a flow sensor 9 are provided in the drainage tube 5, and the controller is used to obtain the collected information of the viscosity sensor 8 and the flow sensor 9, and judge the severity of the patient's pleural effusion based on the viscosity data and flow data of the collected information. The controller sets the body position change standard according to the severity of the patient's pleural effusion, wherein the number of times the preset direction and amplitude changes are completed is proportional to the severity of the patient's pleural effusion.

[0046] The drainage tube 5 is used to drain the patient's pleural effusion, the drainage bottle 6 is used to collect the drained pleural effusion, and the one-way valve 7 can prevent the effusion from flowing back. The body position change standard can be set according to the severity of the patient's effusion, that is, the patient's effusion volume is large and the effusion viscosity is high, which requires a stronger effusion release promotion effect to ensure that the patient's condition is effectively alleviated. Therefore, a viscosity sensor 8 and a flow sensor 9 are provided in the drainage tube 5, and the patient's effusion volume and effusion viscosity can be fed back through the flow sensor 9 and the viscosity sensor 8. The patient's effusion volume is large and its effusion flow is strong. The released flow per unit time can feed back the effusion flow strength and thus the effusion volume. By detecting the patient's effusion volume and effusion viscosity, the body position change standard is modified to adapt to patients with different severities of pleural effusion. In addition, the preset value of the frequency of completing the preset direction and amplitude changes can also be dynamically adjusted based on the patient's pleural effusion severity.

[0047] Embodiment 4:

[0048] The difference from the above embodiment is that the drainage tube 5 is installed with a negative pressure absorber 10, and the controller is used to set the suction force of the negative pressure absorber 10 according to the severity of the patient's pleural effusion.

[0049] The negative pressure suction device 10 can generate negative pressure to promote the drainage process, and the suction force of the negative pressure suction device 10 can be dynamically set according to the severity of the patient's pleural effusion.

[0050] Embodiment 5:

[0051] The difference from the above embodiment is that a paired Hall sensor 11 is provided between the drainage tube 5 and the drainage bottle 6, and the Hall sensor 11 is used to detect the matching state of the drainage tube 5 and the drainage bottle 6. When the matching state is that the drainage bottle 6 is separated from the drainage tube 5, the controller controls the one-way valve 7 to close.

[0052] A photoelectric counter-radiation sensor 15 is installed between the pairing blocks 12 , and the photoelectric counter-radiation sensor 15 is used to detect whether the drainage tube 5 is separated from the chest drainage port.

[0053] A water level sensor 16 is bonded and fixed inside the drainage bottle 6 .

[0054] The controller is also provided with a wireless component, which is used to send an alarm to medical staff through the wireless component when the drainage bottle 6 is separated from the drainage tube 5, when the drainage tube 5 is separated from the chest drainage port, and when the detection data of the water level sensor 16 exceeds a preset value.

[0055] The Hall sensor 11 can detect the change of the magnetic field, thereby determining the matching of the drainage tube 5 and the drainage bottle 6. When the drainage tube 5 and the drainage bottle 6 are separated, the controller controls the one-way valve 7 to close, thereby cutting off the release of the accumulated fluid and reducing the amount of the accumulated fluid spilling outside the drainage bottle 6.

[0056] The wearable monitor 2 is composed of two paired blocks 12, which are respectively attached to the two sides of the chest drainage port of the patient. The photoelectric cross-beam sensor 15 can continuously conduct cross-beam, and judge whether the drainage tube 5 is detached from the chest drainage port by the change of the optical path, so as to respond to the situation of the drainage tube 5 falling off in time.

[0057] The water level sensor 16 can determine the load status of the drainage bottle 6 , thereby prompting medical staff to replace the drainage bottle 6 .

[0058] The wireless component can provide remote communication capabilities, thereby remotely sending messages to medical staff, and can also facilitate medical staff to remotely view the information obtained by the controller. When the drainage bottle 6 is separated from the drainage tube 5, the drainage tube 5 is separated from the chest drainage port, and the water level sensor 16 detects data exceeding the preset value, the medical staff needs to go to the patient to reconnect the drainage bottle 6 with the drainage tube 5, re-fix the drainage tube 5, and replace the drainage bottle 6.

[0059] Embodiment 6:

[0060] The difference from the above embodiment is that it also includes a telescopic member 14, which is an electric push rod, and both ends of the telescopic member 14 are respectively fixed with bolts to the matching block 12. The controller is used to control the contraction of the telescopic member 14 after the photoelectric corresponding sensor 15 detects that the drainage tube 5 is separated from the chest drainage port, so that the matching block 12 drives the skin on both sides of the chest drainage port to tighten the chest drainage port.

[0061] When the drainage tube 5 falls off, the accumulated fluid will still be released from the patient's chest drainage port. At this time, the accumulated fluid will not flow into the drainage bottle 6 through the drainage tube 5, but will be directly released into the bed or ward. The telescopic member 14 can shrink after detecting that the drainage tube 5 falls off, thereby tightening the chest drainage port, reducing the release of accumulated fluid, and reducing the contamination of the bed or ward by the accumulated fluid.

[0062] Embodiment 7:

[0063] The difference from the above embodiment is that: the drainage bottle 6 is integrally formed with a pulling rope 17 , and a pull ring 18 is bonded and fixed to one end of the pulling rope 17 away from the drainage bottle 6 .

[0064] The patient may need to get out of bed and move around, such as going to the toilet, eating, temporary examination, emergency evacuation, etc. The pulling rope 17 and the pull ring 18 can allow the patient to pull up the drainage bottle 6 and keep the drainage bottle 6 located below the chest drainage port.

[0065] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A closed chest drainage device for respiratory care, characterized in that: It includes a drainage device (1) and a wearable monitor (2); The drain (1) is used to drain the pleural effusion of the patient; The wearable monitor (2) comprises a controller, an inertial sensor (3) and a gyroscope (4); the wearable monitor (2) is used to be worn on the patient's trunk and follow the movement of the patient's trunk; The controller is used to obtain information collected by the inertial sensor (3) and the gyroscope (4) to determine the direction and amplitude of the patient's body position change during the drainage process; the controller is also used to preset a body position change standard, the change standard being the number of times the patient completes changes in a preset direction and amplitude during the drainage process, and the controller is used to determine whether the patient has completed the body position change standard during the drainage process based on the information collected by the inertial sensor (3) and the gyroscope (4).

2. The closed chest drainage device for respiratory care according to claim 1, characterized in that: The controller is also used to determine the frequency with which the patient completes changes in preset direction and amplitude during the drainage process. When the frequency with which the patient completes changes in preset direction and amplitude within a unit time period is less than a preset value, the controller issues an alarm.

3. The closed chest drainage device for respiratory care according to claim 2, characterized in that: The drainage device (1) comprises a drainage tube (5), the drainage tube (5) is detachably connected to a drainage bottle (6), and a one-way valve (7) is provided in the drainage tube (5); A viscosity sensor (8) and a flow sensor (9) are provided in the drainage tube (5); the controller is used to obtain information collected by the viscosity sensor (8) and the flow sensor (9), and judge the severity of the patient's pleural effusion based on the viscosity data and flow data of the collected information; the controller sets a body position change standard according to the severity of the patient's pleural effusion, wherein the number of times the preset direction and amplitude changes are completed is proportional to the severity of the patient's pleural effusion.

4. The closed chest drainage device for respiratory care according to claim 3, characterized in that: A negative pressure absorber (10) is also provided on the drainage tube (5), and the controller is used to set the suction force of the negative pressure absorber (10) according to the severity of the patient's pleural effusion.

5. The closed chest drainage device for respiratory care according to claim 4, characterized in that: A matched Hall sensor (11) is provided between the drainage tube (5) and the drainage bottle (6). The Hall sensor (11) is used to detect the matching state of the drainage tube (5) and the drainage bottle (6). When the matching state is that the drainage bottle (6) is separated from the drainage tube (5), the controller controls the one-way valve (7) to close.

6. The closed chest drainage device for respiratory care according to claim 5, characterized in that: The wearable monitor (2) comprises two matching blocks (12), the inertial sensor (3) and the gyroscope (4) are both fixedly connected to the matching blocks (12), the bottom of each matching block (12) is provided with an adhesive tape (13), the matching blocks (12) are respectively used to be adhered to two sides of a chest drainage port of a patient, and a photoelectric counter-radiation sensor (15) is provided between the matching blocks (12), and the photoelectric counter-radiation sensor (15) is used to detect whether the drainage tube (5) is detached from the chest drainage port.

7. The closed chest drainage device for respiratory care according to claim 6, characterized in that: It also comprises a telescopic member (14), both ends of which are respectively fixedly connected to the matching block (12), and a controller is used to control the telescopic member (14) to contract after the photoelectric corresponding sensor (15) detects that the drainage tube (5) is separated from the chest drainage port, so that the matching block (12) drives the skin on both sides of the chest drainage port to tighten the chest drainage port.

8. The closed chest drainage device for respiratory care according to claim 7, characterized in that: A water level sensor (16) is provided in the drainage bottle (6).

9. The closed chest drainage device for respiratory care according to claim 8, characterized in that: The controller is also provided with a wireless component, and the controller is used to send an alarm to medical personnel through the wireless component when the drainage bottle (6) is separated from the drainage tube (5), when the drainage tube (5) is separated from the chest drainage port, and when the detection data of the water level sensor (16) exceeds a preset value.

10. The closed chest drainage device for respiratory care according to claim 9, characterized in that: The drainage bottle (6) is fixedly connected to a pulling rope (17), and a pull ring (18) is provided at one end of the pulling rope (17) away from the drainage bottle (6).

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