CN111494734A

CN111494734A - Clinical intelligent thoracic drainage device

Info

Publication number: CN111494734A
Application number: CN202010432893.2A
Authority: CN
Inventors: 赵明洁
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-02-05
Filing date: 2018-02-05
Publication date: 2020-08-07
Also published as: CN108030966B; CN111494733A; CN108030966A

Abstract

The invention relates to the technical field of medical instruments and discloses a clinical intelligent thoracic drainage device.A negative pressure device, a liquid inlet end, a liquid level sensor for sensing the accumulated liquid amount in a drainage bottle, a camera for shooting the internal state of the drainage bottle, a controller and a storage battery are arranged on the drainage bottle, and a flow speed control mechanism is arranged on the liquid inlet end; the hydrops increment in the drainage bottle is calculated to the signal of controller accessible liquid level inductor feedback to can regulate and control negative pressure device, velocity of flow control mechanism's operating condition based on hydrops increment and predetermined drainage volume, drainage time, realize drainage at regular time, quantitative drainage. This clinical intelligent chest drainage device adopts intelligent design, can carry out automatic control to the drainage state, can realize regularly quantitative drainage, has reduced the manual operation link, can avoid the adverse effect that manual misoperation brought, has avoided the drawback that hydrops spilled over in the drainage bottle simultaneously, is particularly useful for the clinical drainage of a large amount of hydrops in the thorax.

Description

Clinical intelligent thoracic drainage device

The invention is a divisional application of an invention patent application with application number 2018101087655, which is filed on 2018, month 02 and day 05.

Technical Field

The invention relates to a medical appliance, in particular to a device clinically used for pleural effusion drainage operation.

Background

Pleural effusion is a common disease in clinic, various diseases of the lung such as inflammation, malignant tumor, tuberculosis, fungi and the like can cause the pleural effusion, and extrapulmonary diseases such as heart failure, liver cirrhosis, pericardial effusion, malignant tumor of abdominal cavity, pancreatitis, nephrotic syndrome, malnutrition, chest trauma and the like are common causes of the pleural effusion, when the pleural effusion volume of a patient is large, the lung and the heart are pressed, and the patient feels shortness of breath, chest distress, hypoxemia and even respiratory failure, so the pleural effusion must be fully drained firstly in clinical treatment.

Present chest drainage is accomplished with the help of drainage device that constitutes such as drainage tube, drainage bottle and negative pressure bottle, and this type of drainage device is simple and easy in structure, but the function is single relatively, and intelligent degree is lower for the drainage process all needs artificial observing and control, and artifical intensity of labour is high and appear carelessly neglected and influence the drainage effect easily, gives and faces the operation and bring very big inconvenience.

Disclosure of Invention

The invention aims to provide a clinical intelligent thoracic drainage device which is convenient to use, rich in functions, high in intelligent degree, capable of avoiding the condition in the drainage process and beneficial to ensuring and improving the clinical drainage effect.

In order to achieve the purpose, the invention adopts the following technical scheme:

a clinical intelligent thoracic drainage device comprises a cylindrical drainage bottle made of transparent materials, wherein a negative pressure device is connected to the upper end of the drainage bottle, a liquid inlet end used for being connected with a drainage tube is arranged on one side of the upper portion of the drainage bottle, a liquid level sensor used for sensing the accumulated liquid amount in the drainage bottle is arranged in the drainage bottle, a camera used for shooting the internal state of the drainage bottle is arranged on one side of the outer portion of the drainage bottle, a controller and a storage battery are additionally arranged on the outer portion of the drainage bottle, a flow rate control mechanism is arranged on the liquid inlet end, the controller can acquire signals fed back by the liquid level sensor and the camera and can control the working states of the negative pressure device and the flow rate control mechanism, and the controller is additionally connected with a control panel, a wireless transmission module and an audible and visual alarm; the drainage quantity and the drainage time can be preset in the controller by the aid of the control panel, the controller can calculate the accumulated liquid increment in the drainage bottle through continuous feedback signals of the liquid level sensor, and the controller can regulate and control the working states of the negative pressure device and the flow speed control mechanism based on the preset drainage quantity, the preset drainage time and the accumulated liquid increment obtained through calculation, so that timed drainage and quantitative drainage are realized; the controller can be wirelessly connected with third-party equipment through a wireless transmission module, so that the third-party equipment can acquire data mastered in the controller and can remotely control the controller, and the third-party equipment comprises monitoring center control equipment, a smart phone and multimedia equipment in a ward; can input flow rate adjustment instruction to the controller through control panel, the controller can be based on flow rate adjustment instruction to control flow rate control mechanism's operating condition, adjusts the hydrops velocity of flow in the drainage tube promptly.

The controller is provided with a memory card and a data interface, and the memory card can store data directly obtained and calculated in the controller; the data interface is used for exporting the data in the memory card.

The lower end of the drainage bottle is connected with a base in a combined way, and a level gauge is arranged on the base.

The flow rate control mechanism consists of a flow rate valve and a motor device; the flow rate valve comprises a valve body, a cylindrical valve cavity is arranged in the valve body, and joints which are communicated with the valve cavity and used for connecting the drainage tube with the liquid inlet end are respectively arranged on two sides of the shell; the valve cavity is internally provided with a plunger piston capable of moving axially, when the plunger piston is positioned at the lower end of the valve cavity, the two joints are isolated by the plunger piston, when the plunger piston moves upwards from the lower end of the valve cavity, the two joints are communicated and more fully communicated, and when the plunger piston moves upwards to the upper end of the valve cavity, the two joints are completely communicated; the upper end of the valve body is provided with a screw hole communicated with the valve cavity, a screw rod is in threaded fit with the screw hole, the lower end of the screw rod is fixedly connected with the plunger, and the upper end of the screw rod is fixedly connected with a knob positioned above the valve body; the motor device comprises a low-speed motor connected with a controller, and the controller can control the rotation direction and the rotation angle of the low-speed motor; the output shaft of the low-speed motor is connected with a rotary sleeve, a clamping seat for clamping the knob is limited in the rotary sleeve, the clamping seat can move along the rotary sleeve shaft but cannot slip from the tail end of the rotary sleeve, and a reset elastic sheet for driving the clamping seat to reset to the tail end of the rotary sleeve is arranged in the rotary sleeve; the low-speed motor is fixedly connected with a placement frame, and a clamping mechanism used for being fixedly combined with the valve body in a clamping way is arranged on the placement frame; when the clamping mechanism is combined with the valve body, the knob is clamped by the clamping seat to drive the knob to rotate.

The operation method and the working principle of the clinical intelligent thoracic drainage device are as follows:

placing a drainage bottle on the ground, connecting a drainage tube with a liquid inlet end, performing puncture by adopting conventional drainage operation, namely communicating the front end of the drainage tube with a chamber to be drained of a patient and fixing the front end of the drainage tube, and presetting drainage volume and drainage time of effusion to be drained in a controller through a control panel according to the condition of the patient; when the drainage time is up, the controller enables the negative pressure device to start working to provide negative pressure for the drainage bottle, and simultaneously regulates and controls the working state of the flow rate control mechanism to enable the drainage tube to be communicated with the drainage bottle, so that drainage is started, and the timed drainage is realized; in the drainage process, the liquid level sensor feeds back the liquid level change condition of the accumulated liquid in the drainage bottle to the controller in real time, the controller compares the calculated accumulated liquid increment with the preset drainage amount, when the preset drainage amount is reached, the controller stops the negative pressure device and regulates the working state of the flow speed control mechanism to keep the drainage tube in a stop state, so that the drainage bottle and the accumulated liquid in the drainage tube are prevented from flowing back, and quantitative drainage is realized; in the drainage process, medical personnel or family members of the patient can know the real-time drainage condition through the monitoring center control equipment and the smart phone and can send corresponding instructions to the controller to adjust the drainage state.

This clinical intelligent thorax drainage device compares with current conventional drainage device, and it has following beneficial effect:

the clinical intelligent thoracic drainage device adopts an intelligent design, can automatically control the drainage to be carried out and finished, can realize timed and quantitative drainage, reduces the manual operation links, can avoid the adverse effect caused by improper manual operation, and simultaneously avoids the defect that the effusion in the drainage bottle is easy to overflow in the traditional negative pressure drainage; the control of the drainage time and the drainage quantity is realized based on an intelligent system, so that the operation is more accurate compared with artificial observation, and the drainage effect is favorably ensured; the clinical intelligent thoracic drainage device can be wirelessly connected with third-party equipment, so that medical workers and accompanying personnel can know the drainage condition more timely and quickly, and the drainage state can be adjusted more flexibly and conveniently; meanwhile, when the clinical intelligent chest drainage device is clinically used for draining a large amount of pleural effusion, a plurality of drainage parameters can be simultaneously set, and the clinical intelligent chest drainage device automatically completes drainage operation at each time according to preset drainage parameters, so that the displayed advantages are more prominent.

Drawings

Fig. 1 is a schematic structural diagram of a clinical intelligent chest drainage device.

Fig. 2 is a structural schematic diagram of the clinical intelligent chest drainage device after further improvement.

Fig. 3 is a control schematic diagram of the clinical intelligent thoracic drainage device.

Fig. 4 is a schematic structural view of the flow rate control mechanism.

Fig. 5 is a schematic view showing a state where the motor device is separated from the flow rate valve in the flow rate control mechanism.

In the figure, the liquid level sensor 1, the liquid level sensor 2, the control panel 3, the controller 4, the wireless transmission module 5, the audible and visual alarm 6, the storage battery 7, the camera 8, the drainage tube 9, the flow rate control mechanism 10, the liquid inlet end 11, the negative pressure device 12, the drainage bottle 13, the level gauge 14, the base 15, the data interface 16, the memory card 17, the connector 18, the clamping mechanism 19, the plunger 20, the valve cavity 21, the screw hole 22, the rotary sleeve 23, the setting frame 24, the low-speed motor 25, the reset elastic sheet 26, the clamping seat 27, the knob 28, the screw rod 29 and the valve body.

Detailed Description

The invention discloses a clinical intelligent thoracic drainage device, which comprises a drainage bottle 12 made of transparent material; the drainage bottle 12 is cylindrical, and the inner cavity is used for containing drainage effusion; the upper end of the drainage bottle 12 is connected with a negative pressure device 11, one side of the upper part of the drainage bottle 12 is provided with a liquid inlet end 10 for connecting the drainage tube 8, and the liquid inlet end 10 is provided with a flow rate control mechanism 9 for adjusting the communication state of the drainage tube 8 and the drainage bottle 12; a liquid level sensor 1 for sensing the liquid accumulation amount in the drainage bottle 12 is arranged in the drainage bottle 12; a camera 7 for shooting the internal state of the drainage bottle 12 is arranged on one side of the outside of the drainage bottle 12, and a controller 3 and a storage battery 6 are additionally arranged on the outside of the drainage bottle 12; the controller 3 can obtain signals fed back by the liquid level sensor 1 and the camera 7 and can control the working states of the negative pressure device 11 and the flow rate control mechanism 9, and the controller 3 is additionally connected with a control panel 2, a wireless transmission module 4 and an audible and visual alarm 5; the drainage quantity and the drainage time can be preset in the controller 3 by the aid of the control panel 2, the controller 3 can calculate the effusion increment in the drainage bottle 12, namely the actual drainage quantity, through continuous feedback signals of the liquid level sensor 1, and the controller 3 can regulate and control the working states of the negative pressure device 11 and the flow speed control mechanism 9 based on the preset drainage quantity, the drainage time and the effusion increment obtained through calculation, so that the timed drainage and the quantitative drainage are realized; the controller 3 can be wirelessly connected with third-party equipment through the wireless transmission module 4, so that the third-party equipment can acquire data mastered in the controller 3 and can remotely control the controller 3, and the third-party equipment comprises monitoring center control equipment, a smart phone and multimedia equipment in a ward; can input flow rate regulation instruction to controller 3 through control panel 2, controller 3 can be based on flow rate regulation instruction to control flow rate control mechanism 9's operating condition, adjusts the hydrops velocity of flow in drainage tube 8 promptly.

placing a drainage bottle 12 on the ground, connecting a drainage tube 8 with a liquid inlet end 10, performing puncture by adopting conventional drainage operation, namely communicating the front end of the drainage tube 8 with a cavity to be drained of a patient and fixing the front end of the drainage tube 8, and presetting drainage volume and drainage time of effusion to be drained in a controller 3 through a control panel 2 according to the condition of the patient; when the drainage time is up, the controller 3 enables the negative pressure device 11 to start working to provide negative pressure for the drainage bottle 12, and simultaneously regulates and controls the working state of the flow rate control mechanism 9 to enable the drainage tube 8 and the drainage bottle 12 to be kept in a conduction state, and drainage is started at the moment, namely, timing drainage is realized; in the drainage process, the liquid level sensor 1 feeds back the liquid level change condition of the effusion in the drainage bottle 12 to the controller 3 in real time, the controller 3 compares the calculated effusion increment with the preset drainage quantity, when the preset drainage quantity is reached, the controller 3 stops the negative pressure device 11 and regulates the working state of the flow speed control mechanism 9 to disconnect the drainage tube 8 from the drainage bottle 12, the effusion in the drainage tube 8 does not flow into the drainage bottle 12 at the moment, and the effusion in the drainage bottle 12 and the drainage tube 8 can be prevented from flowing back, so that the quantitative drainage is realized; the negative pressure device 11, the liquid level sensor 1, the camera 7, the controller 3 and the audible and visual alarm 5 are supplied with working current by a power supply.

This clinical intelligent chest drainage device is at the drainage in-process, accessible control panel 2 inputs the velocity of flow regulation instruction to controller 3, for example the velocity of flow increases or the velocity of flow reduces, controller 3 regulates and control the operating condition of flow control mechanism 9 according to the velocity of flow regulation instruction that obtains, adjusts the connected state of drainage tube 8 and drainage bottle 12 promptly, makes the hydrops velocity of flow increase in the drainage tube 8 or reduce, can guarantee the drainage effect from this and can prevent that the drainage from bringing the discomfort for the patient too fast.

The clinical intelligent thoracic drainage device can be matched with monitoring center control equipment through the wireless transmission module 4 in the clinical drainage process, so that medical personnel can conveniently acquire real-time drainage conditions through the monitoring center control equipment and can remotely control the controller 3 according to the drainage conditions, namely adjust the drainage state in time; meanwhile, the intelligent mobile phone can be matched with a clinical intelligent chest drainage device through the wireless transmission module 4, so that medical staff can know the drainage condition in real time and conveniently adjust the multi-drainage state even if the medical staff is not beside the drainage device; in addition, along with the continuous promotion of ward environment, be equipped with multimedia equipment such as TV set in some wards, this clinical intelligent thorax drainage device also can carry out wireless data transmission with multimedia equipment in the ward, from this, when implementing the case of drainage in the ward more, medical personnel only need can be convenient understanding the drainage condition of every case through multimedia equipment when making rounds of wards, convenient and fast.

This clinical intelligent chest drainage device is when clinical use, and be a large amount of pleural effusion if the case, this kind of condition often needs drainage in grades, can predetermine at controller 3 with drainage time, the drainage volume of drainage at every turn from this, and controller 3 can come the automation according to predetermined drainage data and carry out drainage at every turn, has alleviateed the manual operation burden greatly, has also avoided the risk that the manual operation is improper to be brought.

In this clinical intelligent chest drainage device,

negative pressure device

11 and 12 upper ends of drainage bottle are connected, and it is used for providing the negative pressure for drainage bottle 12 is inside, and based on the setting of negative pressure device 11 is used for, it adopts current negative pressure pump device to implement to along with the continuous improvement of technique, partial negative pressure pump device has constant voltage output's function, chooses this kind of negative pressure pump device for use to be applied to this clinical intelligent chest drainage device in, can further promote this clinical intelligent chest drainage device's clinical result of use.

In the clinical intelligent thoracic drainage device, a flow speed control mechanism 9 is arranged on a liquid inlet end 10 and is mainly used for controlling the communication state of a drainage tube 8 and a drainage bottle 12, and the functions of controlling the starting and stopping of drainage and adjusting the drainage speed can be achieved; in view of the above, the flow rate control mechanism 9 can be a conventional solenoid valve, and the application of the controller 3 to control the opening of the solenoid valve is well established and common in the prior art.

In this clinical intelligent chest drainage device, controller 3 needs to possess the functional requirement that the signal of feeding back through liquid level inductor 1 is continuous calculates the hydrops increment in drainage bottle 12, in clinical drainage process, the hydrops volume is mostly described with the volume form, liquid level inductor 1 can feed back the liquid level change of hydrops in drainage bottle 12 to controller 3, consequently, controller 3 can obtain the liquid level altitude increase of hydrops during the drainage, simultaneously because drainage bottle 12 is cylindrical and its cross sectional area is invariable and clear and definite, so controller 3 calculates the hydrops increment under the condition of mastering above-mentioned basic data very easy realization.

In this clinical intelligent chest drainage device, controller 3 is connected with audible-visual annunciator 5, and clinical intelligent chest drainage device is clinical in drainage in-process accessible audible-visual annunciator 5 express the drainage state, in expressing not drainage, drainage end etc. state like the pilot lamp of different colours of accessible, still accessible sound is to the timely feedback of operator when the drainage state changes or clinical intelligent chest drainage device breaks down.

The clinical intelligent thoracic drainage device adopts an intelligent design, can automatically control the drainage to be carried out and finished, can realize the timed and quantitative drainage, reduces the manual operation links, and can avoid the adverse effect caused by the improper manual operation; the control of the drainage time and the drainage quantity is realized based on an intelligent system, so that the operation is more accurate compared with artificial observation, and the drainage effect is favorably ensured; the clinical intelligent thoracic drainage device can be wirelessly connected with third-party equipment, so that medical workers and accompanying personnel can know the drainage condition more timely and quickly, and the drainage state can be adjusted more flexibly and conveniently; meanwhile, when the clinical intelligent chest drainage device is clinically used for draining a large amount of pleural effusion, a plurality of drainage parameters can be simultaneously set, and the clinical intelligent chest drainage device automatically completes drainage operation at each time according to preset drainage parameters, so that the displayed advantages are more prominent.

Further, the controller 3 is provided with a memory card 16 and a data interface 15, and the memory card 16 can store data directly obtained and calculated in the controller 3, such as drainage process video data obtained by the camera 7, drainage increment change data calculated based on a feedback signal of the liquid level sensor in the drainage bottle 12, drainage preset data such as drainage quantity, drainage time and the like; the data interface 15 is used for exporting data in the memory card 16, so that centralized storage of medical units is facilitated, and traceability of medical operations is improved.

Furthermore, the lower end of the drainage bottle 12 is connected with a base 14 in a combined manner, and the level meter 13 is arranged on the base 14, so that the base 14 can provide stable and powerful support for the drainage bottle 12, and the drainage bottle 12 is prevented from tilting or inclining in the drainage process; be equipped with spirit level 13 on the base 14, when clinical use, can adjust base 14 to horizontality according to spirit level 13, but furthest's improvement level sensor output signal's accuracy improves the accuracy of ration drainage under this state.

Furthermore, in the above clinical intelligent thoracic drainage device, the flow rate control mechanism 9 is installed on the liquid inlet end 10, and can play a role in controlling the start and stop of drainage and adjusting the drainage speed, as already explained in the foregoing description, the flow rate control mechanism 9 can adopt an electromagnetic valve, but has a problem that the effusion generated in the thoracic cavity often contains various impurities and is sticky, so that the electromagnetic valve is easy to work unstably, the adjustment precision is reduced, and even blocked in severe cases, and therefore the electromagnetic valve needs to be replaced frequently, but the electromagnetic valve is a precision device with a relatively high price, so that the use cost of the clinical intelligent thoracic drainage device is significantly increased; meanwhile, the replacement of the battery valve is a professional operation, and the steps are complicated, so that the clinical intelligent thoracic drainage device is not flexible to use; based on the reasons, the invention also provides a flow rate control mechanism 9 which has scientific structure and low use cost and is extremely suitable for being applied in the clinical intelligent thoracic drainage device; the flow rate control mechanism 9 has the following specific structure:

the flow rate control mechanism 9 comprises a flow rate valve and a motor device; the flow rate valve comprises a valve body 29, a cylindrical valve cavity 20 is arranged in the valve body 29, and connectors 17 which are communicated with the valve cavity 20 and are used for connecting the drainage tube 8 with the liquid inlet end 10 are respectively arranged on two sides of the shell; the valve cavity 20 is internally provided with a plunger 19 capable of moving axially, the two joints 17 are isolated by the plunger 19 when the plunger 19 is positioned at the lower end of the valve cavity 20, the two joints 17 are communicated and communicated more and more fully when the plunger 19 moves upwards from the lower end of the valve cavity 20, and the two joints 17 are completely communicated when the plunger 19 moves upwards to the upper end of the valve cavity 20; the upper end of the valve body 29 is provided with a screw hole 20 communicated with the valve cavity 20, a screw 28 is in threaded fit with the screw hole 20, the lower end of the screw 28 is fixedly connected with the plunger 19, and the upper end of the screw 28 is fixedly connected with a knob 27 positioned above the valve body 29; the motor device comprises a low-speed motor 24 connected with the controller 3, and the controller 3 can control the rotation direction and the rotation angle of the low-speed motor 24; the output shaft of the low-speed motor 24 is connected with a rotary sleeve 22, a clamping seat 26 for clamping a knob 27 is limited in the rotary sleeve 22, the clamping seat 26 can move along the shaft of the rotary sleeve 22 but cannot slip from the tail end of the rotary sleeve 22, and a reset spring 25 for driving the clamping seat 26 to reset to the tail end of the rotary sleeve 22 is arranged in the rotary sleeve 22; the low-speed motor 24 is fixedly connected with a placing frame 23, and the placing frame 23 is provided with a clamping mechanism 18 which is used for being fixedly combined with the valve body 29 in a clamping way; when the holding mechanism 18 is combined with the valve body 29, the holding seat 26 holds the knob 27 to rotate the knob 27.

Therefore, after the motor device and the flow rate valve are combined together, the controller 3 is utilized to control the working state of the low-speed motor 24, the low-speed motor 24 can drive the knob 27 to rotate through the clamping seat 26, and therefore the position of the plunger 19 is adjusted, and the purposes of adjusting the communication state of the drainage tube 8 and the liquid inlet end 10 and adjusting the drainage speed are achieved; firstly, the flow rate valve is simple and exquisite in structure, the conditions of reduction of adjustment precision and blockage are not easy to occur, secondly, the flow rate valve and the motor device are in a combined design, the assembly and separation operations are extremely simple, even if the flow rate valve is reduced in precision or blocked, the flow rate valve is very convenient to replace and can be operated by a common person, and the motor device can be used for a long time;

the flow velocity control mechanism 9 provided by the invention has the advantages of simple structure, convenient combination, low use cost, high flow regulation precision and quick response, and can overcome the defects of the prior similar products.

Claims

1. The utility model provides a clinical intelligent thorax drainage device, includes that one adopts transparent material to make and be columniform drainage bottle, its characterized in that: the drainage bottle is characterized in that a negative pressure device is connected to the upper end of the drainage bottle, a liquid inlet end used for being connected with a drainage tube is arranged on one side of the upper portion of the drainage bottle, a liquid level sensor used for sensing the accumulated liquid amount in the drainage bottle is arranged in the drainage bottle, a camera used for shooting the internal state of the drainage bottle is arranged on one side of the outer portion of the drainage bottle, a controller and a storage battery are additionally arranged outside the drainage bottle, a flow rate control mechanism is arranged on the liquid inlet end, the controller can acquire signals fed back by the liquid level sensor and the camera and can control the working state of the negative pressure device and the flow rate control mechanism, and a control panel, a wireless transmission module and an audible and visual alarm; the drainage quantity and the drainage time can be preset in the controller by the aid of the control panel, the controller can calculate the accumulated liquid increment in the drainage bottle through continuous feedback signals of the liquid level sensor, and the controller can regulate and control the working states of the negative pressure device and the flow speed control mechanism based on the preset drainage quantity, the preset drainage time and the accumulated liquid increment obtained through calculation, so that timed drainage and quantitative drainage are realized; the controller can be wirelessly connected with third-party equipment through a wireless transmission module, so that the third-party equipment can acquire data mastered in the controller and can remotely control the controller, and the third-party equipment comprises monitoring center control equipment, a smart phone and multimedia equipment in a ward; a flow speed adjusting instruction can be input into the controller through the control panel, and the controller can control the working state of the flow speed control mechanism based on the flow speed adjusting instruction, namely, the flow speed of the accumulated liquid in the drainage tube is adjusted; the lower end of the drainage bottle is connected with a base in a combined way, and a level gauge is arranged on the base.

2. The clinical intelligent chest drainage device according to claim 1, wherein: and the audible and visual alarm is connected with the controller and used for expressing the drainage state in the drainage process.

3. The clinical intelligent chest drainage device according to claim 1, wherein: the negative pressure device is a negative pressure pump device in the prior art.

4. The clinical intelligent chest drainage device according to claim 1, wherein: the flow rate control mechanism is a solenoid valve as in the prior art.