Automatic thoracic cavity closed drainage fixing device

By designing an automatic closed chest drainage fixation device and using components such as telescopic rods, air cushions and sensors, the problems of unstable fixation and tube detachment of traditional drainage fixation devices are solved, the drainage tube and drainage bottle are firmly fixed, and the patient comfort and the safety of the drainage process are improved.

CN120695330APending Publication Date: 2025-09-26JIANGSU PROVINCE INST OF TRADITIONAL CHINESE MEDICINE
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Patent Information

Application Number
CN202511125490.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-12
Publication Date
2025-09-26

AI Technical Summary

Technical Problem

Traditional closed chest drainage fixation technology has shortcomings in fixation reliability and patient comfort. The drainage bottle is easy to shake and the risk of tube dislocation is high.

Method used

An automatic closed chest drainage fixation device was designed, including a drainage component and a fixation component. It used a positioning component consisting of a telescopic rod and a telescopic spring, a fixing belt consisting of an air cushion and a micro air pump, an anti-backflow valve, and a central processing unit to achieve double-layer fixation of the drainage tube and drainage bottle, reduce vibration and the risk of tube detachment, and monitor the drainage status through sensors.

Benefits of technology

It achieves stable fixation of the drainage tube and drainage bottle, reduces vibration and the risk of tube disengagement, improves patient comfort, and ensures the safety and reliability of the drainage process through real-time monitoring and remote management.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an automatic thoracic cavity closed drainage fixing device, which belongs to the technical field of medical instruments, and comprises a drainage assembly, a base, a fixed baffle arranged on the periphery of the top end of the base, a drainage bottle arranged in the fixed baffle, and a drainage tube arranged on the drainage bottle; the fixing assemblies are respectively arranged between the drainage bottle and the drainage tube, and comprise at least two groups of positioning pieces arranged between the fixed baffle and the drainage bottle, and a fixing piece arranged on the drainage tube. The drainage device has the beneficial effects that by arranging the drainage assembly and the fixing assembly, the drainage tube can be fixed in a double-layer mode and can be firmly fixed, and meanwhile by arranging the air cushion, the drainage tube can be automatically locked; by arranging the positioning piece, the drainage bottle can be fixed, vibration generated in the using process of the drainage bottle is reduced, and the influence of vibration on the drainage bottle is avoided.
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Description

Technical Field

[0001] The invention belongs to the technical field of medical appliances, and in particular relates to an automatic closed chest drainage fixation device. Background Art

[0002] Closed chest drainage is an important medical method for treating pneumothorax, hemothorax, empyema and for recovery after thoracotomy. It involves placing one end of the drainage tube into the chest cavity and connecting the other end to a water seal bottle or drainage bottle at a lower position. Gravity is used to drain the gas or fluid in the chest cavity and allow the lung tissue to re-expand.

[0003] Although traditional closed chest drainage fixation technology is widely used, it still has significant shortcomings in terms of fixation reliability and patient comfort. Existing drainage bottles are prone to shaking, which can easily lead to the risk of tube dislodgement. Therefore, we designed an automatic closed chest drainage fixation device. Summary of the Invention

[0004] Purpose of the invention: To provide an automatic closed chest drainage fixation device to solve the above-mentioned problems existing in the prior art.

[0005] Technical solution: An automatic closed chest drainage fixing device includes a drainage assembly, including a base, a fixed baffle arranged around the top of the base, a drainage bottle arranged inside the fixed baffle, and a drainage tube arranged in the drainage bottle; and a fixing assembly, which is respectively arranged between the drainage bottle and the drainage tube, including no less than two groups of positioning parts arranged between the fixed baffle and the drainage bottle, and a fixing part arranged on the drainage tube.

[0006] The positioning member comprises a telescopic rod arranged on the inner wall of the fixed baffle, a positioning plate arranged between the end of the telescopic rod and the drainage bottle, and a telescopic spring arranged between the telescopic rod and the positioning plate.

[0007] The fixing member comprises a fixing pad arranged at one end of the drainage tube away from the drainage bottle, and a fixing belt arranged at one side of the drainage tube close to the fixing pad.

[0008] An air cushion is provided on the inner side of the fixing belt, and the top end of the air cushion is connected to a micro air pump through a hose.

[0009] The drainage bottle outlet is also provided with an anti-backflow valve, which includes a shell connected to the drainage tube, a ball valve arranged in the shell, and a connecting spring arranged between the ball valve and the shell.

[0010] The bottom end of the base is also provided with a pulley.

[0011] The device also includes a processing component, which includes a collecting piece arranged at the end of the drainage tube and a central processing unit arranged on the fixed baffle.

[0012] The collecting component includes a flow sensor and a pressure sensor which are arranged at the insertion end of the drainage tube and electrically connected to the central processing unit, and a liquid level sensor which is arranged in the drainage bottle and electrically connected to the central processing unit.

[0013] The central processing unit is also provided with a communication module, and the central processing unit is connected to the system background via wireless signals.

[0014] The beneficial effects of the present invention are as follows: by arranging the drainage component and the fixing component, the drainage tube can be double-fixed, the drainage tube can be firmly fixed, and at the same time, an air cushion is arranged to automatically lock the drainage tube; by arranging the positioning piece, the drainage bottle can be fixed, the vibration generated by the drainage bottle during use can be reduced, and the influence of vibration on the drainage bottle can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 A top view of the positioning member of the present invention; Figure 3 Schematic diagram of the structure of the fixing member in the present invention; Figure 4 Schematic diagram of the internal structure of the fixing belt in the present invention; Figure 5 Schematic diagram of the internal structure of the backflow valve in the present invention; Figure 6 This is a control principle diagram of the present invention.

[0016] The figures in the figure are marked as follows: 1. Drainage component; 2. Fixing component; 3. Processing component; 4. Anti-backflow valve; 5. Pulley; 11. Base; 12. Fixed baffle; 13. Drainage bottle; 14. Drainage tube; 21. Positioning piece; 22. Fixing piece; 31. Collection piece; 32. Central processing unit; 33. Communication module; 41. Shell; 42. Ball valve; 43. Connecting spring; 211. Telescopic rod; 212. Positioning plate; 213. Telescopic spring; 221. Fixing pad; 222. Fixing belt; 223. Air cushion; 311. Flow sensor; 312. Pressure sensor; 313. Liquid level sensor. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention 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 making creative efforts are within the scope of protection of the present invention. Specific embodiment 1: As attached Figure 1-6As shown, in this embodiment, an automatic closed chest drainage fixing device includes a drainage component 1, including a base 11, a fixed baffle 12 arranged around the top of the base 11, a drainage bottle 13 arranged inside the fixed baffle 12, and a drainage tube 14 arranged in the drainage bottle 13; and a fixing component 2, which is respectively arranged between the drainage bottle 13 and the drainage tube 14, including no less than two groups of positioning members 21 arranged between the fixed baffle 12 and the drainage bottle 13, and a fixing member 22 arranged on the drainage tube 14.

[0019] A fixed baffle 12 is provided on the base 11, and the fixed baffle 12 is used to firmly place the drainage bottle 13 on the base 11. The drainage bottle 13 is a core component, and its material is selected from high-strength transparent plastic. It is light and durable, and it is convenient for medical staff to observe the nature and amount of the drainage fluid. One end of the drainage tube 14 is closely connected to the drainage bottle 13, and the other end extends into the patient's chest cavity, responsible for draining the gas or liquid in the chest cavity into the drainage bottle 14. The drainage tube 14 is made of medical-grade silicone material, which has good softness and biocompatibility and can reduce the patient's discomfort. The positioning member 21 is connected to the inner wall of the fixed baffle 12 through a telescopic rod 211. The telescopic rod 211 has a telescopic function and can be flexibly adjusted according to the size of the drainage bottle 13 to ensure that the drainage bottle 13 is stably fixed. The positioning plate 212 is attached to the outer wall of the drainage bottle 13, and the elastic force of the telescopic spring 213 further enhances the stability and reliability of the fixation.

[0020] The fixing pad 221 in the fixing member 22 is made of a soft and wear-resistant material and can fit tightly on the drainage tube 14, reducing friction between the drainage tube 14 and the patient's skin and improving the patient's comfort. The fixing member 22 double-fixes the drainage tube 14 to prevent the drainage tube 14 from falling off. Specific embodiment 2: As attached Figure 1-6 As shown, in this embodiment, the positioning member 21 includes a telescopic rod 211 arranged on the inner wall of the fixed baffle 12, a positioning plate 212 arranged between the end of the telescopic rod 211 and the drainage bottle 13, and a telescopic spring 213 arranged between the telescopic rod 211 and the positioning plate 212.

[0022] Two telescopic rods 211 are provided on each inner wall of the fixed baffle 12. Telescopic springs 213 are sleeved onto the telescopic rods 211. The top inner side of the positioning plates 212 is provided with an inclined surface to facilitate pushing the drainage bottle 13 into the four positioning plates 212. When the drainage bottle 13 moves downward, it presses the positioning plates 212 outward. As the positioning plates 212 move, they press the telescopic rods 211, causing the telescopic rods 211 to contract and the telescopic springs 213 to compress. When the drainage bottle 13 moves onto the base 11, the elastic force of the telescopic springs 213 pushes the telescopic rods 211 back to their original position. The telescopic rods 211, in turn, push the positioning plates 212 back to their original position. Simultaneously, the telescopic springs 213 exert a thrust on the positioning plates 212, firmly securing the drainage bottle 13 between the four positioning plates 212. The coordinated use of the telescopic rods 211 and the telescopic springs 213 allows the positioning member 21 to be adaptively adjusted to the varying specifications of the drainage bottle 13.

[0023] The fixing member 22 includes a fixing pad 221 provided at an end of the drainage tube 14 away from the drainage bottle 13 , and a fixing belt 222 provided at a side of the drainage tube 14 close to the fixing pad 221 .

[0024] The fixing pad 221 is made of medical-grade silicone and fits snugly against the patient's skin, reducing friction between the drainage tube 14 and the patient's skin while improving patient comfort. The fixing strap 222 is adjustable and can be flexibly adjusted based on the patient's body shape and drainage location, ensuring that the drainage tube 14 is stably fixed.

[0025] An air cushion 223 is provided on the inner side of the fixing belt 222 , and the top end of the air cushion 223 is connected to a micro air pump via a hose.

[0026] An air cushion 223 is located inside the fixing strap 222 and is connected to a micro-air pump via a flexible hose. When the micro-air pump is operating, the air cushion 223 inflates, further compressing the drainage tube 14 and preventing it from falling off. The softness of the air cushion 223 also reduces the pressure on the patient's skin. The micro-air pump is also connected to the central processing unit 32. When the fixing pad 221 of the drainage tube 14 is detected to be loose, the central processing unit 32 controls the micro-air pump to start and inflate the air cushion 223. Specific embodiment 3: As attached Figure 1-6 As shown, in this embodiment, a backflow prevention valve 4 is further provided at the outlet of the drainage bottle 13. The backflow prevention valve 4 includes a shell 41 connected to the drainage tube 14, a ball valve 42 arranged in the shell 41, and a connecting spring 43 arranged between the ball valve 42 and the shell 41.

[0028] The outlet of the drainage bottle 12 is provided with an anti-backflow valve 4 to prevent the drained liquid from flowing back inside the device, thereby effectively avoiding the possible risk of secondary infection. The shell 41 is the main part of the anti-backflow valve 4 and is connected to the drainage tube 14. When drainage is required, the drainage tube 14 is connected between the patient's chest cavity and the drainage bottle 13. After connection, the pressure on the side of the anti-backflow valve 4 close to the chest cavity is greater than the pressure on the side of the drainage bottle 13, squeezing the ball valve 42. After the ball valve 42 is under pressure, it moves toward the inside of the shell 41 and compresses the connecting spring 43. At this time, the opening between the ball valve 42 and the shell 41 is opened, allowing the drainage liquid to flow into the drainage bottle 13. When the drainage process ends or the internal pressure of the device is abnormal, causing the pressure on the side of the drainage bottle 13 to be greater than the pressure on the side close to the chest cavity, the connecting spring 43 pushes the ball valve 42 to reset under the action of elastic force, tightly fitting on the inner wall of the shell 41, preventing the drainage liquid from flowing back into the patient's chest cavity, thereby effectively avoiding the possible risk of secondary infection.

[0029] The bottom end of the base 11 is also equipped with a pulley 5. The design of the pulley 5 makes the entire device easier to move and position. The pulley 5 is a universal wheel with a locking function, allowing medical staff to easily push or rotate the device to the desired position. The locking function stably secures the device, preventing accidental movement during drainage, ensuring safety and stability. Specific embodiment 4: As attached Figure 1-6 As shown, in this embodiment, the processing assembly 3 is further included. The processing assembly 3 includes a collecting member 31 arranged at the end of the drainage tube 14 and a central processing unit 32 arranged on the fixed baffle 12.

[0031] The collection component 31 can monitor the drainage fluid in the drainage tube 14 in real time. The flow sensor 311 is used to monitor the flow of the drainage fluid in real time, which can help determine whether the patient's drainage is normal. The pressure sensor 312 is used to monitor the pressure changes in the drainage tube 14. When the pressure is abnormal, it may mean that the drainage tube 14 is blocked or the drainage is not smooth. The liquid level sensor 313 is set in the drainage bottle 13 and is used to monitor the liquid level changes in the drainage bottle 13 in real time. When the liquid level reaches the preset threshold, the sensor will send a signal to the central processor 32 to remind medical staff to replace or empty the drainage bottle 13 in time so that the drainage process can continue. The central processor 32 is responsible for receiving various types of data from the collection component 31, and processing and analyzing them. When an abnormality occurs, an alarm can be issued to remind medical staff to handle it.

[0032] The collecting component 31 includes a flow sensor 311 and a pressure sensor 312 provided at the insertion end of the drainage tube 14 and electrically connected to the central processing unit 32 , and a liquid level sensor 313 provided in the drainage bottle 13 and electrically connected to the central processing unit 32 .

[0033] The central processing unit 32 is equipped with a communication module 33, which is connected to the system backend via wireless signals. The communication module 33 is responsible for wirelessly transmitting the analysis results and drainage data from the central processing unit 32 to the system backend. Medical staff can remotely access the system backend through terminal devices such as computers or mobile phones to view the patient's drainage status in real time, making remote monitoring and management more convenient.

[0034] Working principle description: During use, one end of the drainage tube 14 is inserted into the patient's chest cavity, and the other end is connected to the drainage bottle 13. The insertion tube of the drainage tube 14 is fixed by the fixing pad 221, and the drainage tube 14 is fixed again by the fixing belt 222 at 3 to 5 cm of the fixing pad 221 to prevent the drainage tube 14 from falling off. When the fixing belt 222 is initially fixed, it leaves space for the drainage tube 14 to move. Slight sliding allows the tube to automatically adjust its depth as the body position changes, preventing the tip from continuously pressing against the same lung tissue or pleura, reducing pressure sores, fistula formation and pain. When the tube falls off, the air cushion 223 is inflated by a micro air pump to reduce the moving space of the drainage tube 14 and fix the drainage tube 14. As the liquid or gas in the chest cavity flows out through the drainage tube 14, the flow sensor 311 will monitor and record the drainage flow in real time, and the pressure sensor 312 will monitor the pressure changes in the drainage tube 14. At the same time, the liquid level sensor 313 monitors the liquid level in the drainage bottle 13 in real time, ensuring that when the liquid level reaches a preset safety threshold, it promptly sends a signal to the central processing unit 32. Upon receiving the data from these sensors, the central processing unit 32 rapidly processes and analyzes it. If any anomaly is detected, such as a sudden increase in drainage flow, abnormal pressure fluctuations, or excessively high liquid levels, an alarm will be immediately triggered to alert on-site medical personnel. Furthermore, the central processing unit 32 wirelessly transmits the analysis results and detailed drainage data to the system backend via the communication module 33, allowing medical personnel to access this data in real time via mobile phones or computers, thereby enabling comprehensive remote monitoring and management of the patient's drainage status.

[0035] The present invention has been shown and described in detail in its preferred embodiments, but they are not to be construed as limiting the invention itself. Various changes in form and details may be made thereto without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. An automatic closed chest drainage fixation device, characterized by: A drainage assembly (1) comprises a base (11), a fixed baffle (12) arranged around the top of the base (11), a drainage bottle (13) arranged inside the fixed baffle (12), and a drainage tube (14) arranged in the drainage bottle (13); and, A fixing assembly (2), wherein the fixing assembly (2) is respectively arranged between the drainage bottle (13) and the drainage tube (14), and comprises no less than two groups of positioning members (21) arranged between the fixed baffle (12) and the drainage bottle (13), and a fixing member (22) arranged on the drainage tube (14).

2. The automatic closed chest drainage fixation device according to claim 1, characterized in that: The positioning member (21) comprises a telescopic rod (211) arranged on the inner wall of the fixed baffle (12), a positioning plate (212) arranged between the end of the telescopic rod (211) and the drainage bottle (13), and a telescopic spring (213) arranged between the telescopic rod (211) and the positioning plate (212).

3. The automatic closed chest drainage fixation device according to claim 2, characterized in that: The fixing member (22) comprises a fixing pad (221) provided at one end of the drainage tube (14) away from the drainage bottle (13), and a fixing belt (222) provided at one side of the drainage tube (14) close to the fixing pad (221).

4. The automatic closed chest drainage fixation device according to claim 3, characterized in that: An air cushion (223) is provided on the inner side of the fixing belt (222), and the top end of the air cushion (223) is connected to a micro air pump via a hose.

5. The automatic closed chest drainage fixation device according to claim 4, characterized in that: The drainage bottle (13) is further provided with an anti-backflow valve (4) at its outlet. The anti-backflow valve (4) comprises a housing (41) connected to the drainage tube (14), a ball valve (42) disposed within the housing (41), and a connecting spring (43) disposed between the ball valve (42) and the housing (41).

6. The automatic closed chest drainage fixation device according to claim 5, characterized in that: A pulley (5) is also provided at the bottom end of the base (11).

7. The automatic closed chest drainage fixation device according to any one of claims 1 to 6, characterized in that: It also includes a processing assembly (3), which includes a collection piece (31) arranged at the end of the drainage tube (14), and a central processing unit (32) arranged on the fixed baffle (12).

8. The automatic closed chest drainage fixation device according to claim 7, characterized in that: The collecting component (31) includes a flow sensor (311) and a pressure sensor (312) arranged at the insertion end of the drainage tube (14) and electrically connected to the central processing unit (32), and a liquid level sensor (313) arranged in the drainage bottle (13) and electrically connected to the central processing unit (32).

9. The automatic closed chest drainage fixation device according to claim 8, characterized in that: The central processing unit (32) is also provided with a communication module (33), and the central processing unit (32) is connected to the system backend via a wireless signal.