Automatic adjusting device for closed thoracic drainage bottle after autologous lung transplantation

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to an automatic adjusting device of a thoracic closed drainage bottle after autologous lung transplantation, the automatic adjusting device is applied to a three-cavity drainage bottle, the three-cavity drainage bottle comprises a drainage bottle body, a pressure adjusting cavity is formed in the drainage bottle body, normal saline is injected into the pressure adjusting cavity, and the pressure adjusting cavity is communicated with the drainage bottle body. A pressure adjusting cavity is formed in the body of the patient, a pressure adjusting pipe is assembled in the pressure adjusting cavity, the upper end of the pressure adjusting pipe extends to the upper end of the pressure adjusting cavity, the automatic adjusting device comprises a tilt angle sensor, and the tilt angle sensor is placed on the body of the patient and can obtain the body position change of the patient. The trunk angle of a patient is monitored through the tilt angle sensor, and the immersion depth of the breather pipe is adjusted through the lead screw motor, so that the device can automatically adjust the immersion depth of the breather pipe and the maximum negative pressure value of the drainage system when the body position of the patient changes, and complications caused by the change of the body position of the patient are avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to an automatic regulating device for a closed chest drainage bottle after autologous lung transplantation. Background Art

[0002] Autologous lung transplantation is an effective means of treating end-stage lung disease. Postoperative closed chest drainage management of patients is crucial. Closed chest drainage uses a three-chamber drainage bottle to drain the gas and liquid in the chest cavity, maintain a negative pressure environment in the chest cavity, promote lung re-expansion and closure of the residual chest cavity. The three-chamber drainage bottle usually includes a drainage chamber, a water seal chamber and a negative pressure regulating chamber. The negative pressure regulating chamber controls the maximum negative pressure value of the drainage system through the immersion depth of the pressure regulating tube. Under normal circumstances, the immersion depth of the pressure regulating tube is maintained between 8 and 12 cm to maintain the maximum negative pressure value of the drainage system within the range of -8 to -12 cmH2O. This negative pressure range can effectively achieve chest drainage, maintain stable operation of the drainage system, and avoid excessive pressure damage to the patient's lungs. However, during the drainage process, the patient's body position will change from time to time between supine, semi-recumbent and sitting positions according to their own needs. When the patient's body position changes, the position of the internal organs of the trunk changes accordingly, which leads to a significant change in the chest cavity volume [for example, when changing from a supine position to a sitting position, gravity will cause the diaphragm to move downward, which is the main reason for the increase in chest cavity volume. The chest cavity volume change can reach 15% to 30%]. The change in chest cavity volume will lead to a change in the demand for negative pressure suction value, and the negative pressure value needs to be adjusted synchronously to compensate for the change in chest cavity volume. However, in the existing technology, medical staff often need to increase or decrease the liquid level in the negative pressure chamber to adjust the maximum negative pressure value of the drainage system. This adjustment method not only increases the workload of medical staff, but also, if it fails to adjust in time according to the changes in the patient's body position, it will cause a series of adverse consequences, such as decreased or stagnant drainage efficiency, affecting the discharge of fluid and air in the pleural cavity, resulting in incomplete lung re-expansion, increasing the risk of tension pneumothorax and causing other complications, seriously threatening the patient's postoperative recovery and life safety. In summary, the existing closed-chest drainage system for autologous lung transplantation, which adjusts the negative pressure to account for changes in chest volume caused by changes in patient position, has significant shortcomings. It relies on manual operation by medical staff, which is subject to lag and unreliability. It is unable to adjust the negative pressure value in a timely and accurate manner based on the patient's actual situation, increasing the workload of medical staff and posing safety risks to patients. Therefore, there is an urgent need to develop a device that can automatically adjust the negative pressure value of the closed-chest drainage bottle based on changes in patient position to address the problems existing in the existing technology, improve the effectiveness and safety of chest drainage, and reduce the risk of complications for patients. Summary of the Invention

[0003] The purpose of the present invention is to provide an automatic adjustment device for a closed chest drainage bottle after autologous lung transplantation. The device monitors the patient's torso angle through a tilt sensor and adjusts the immersion depth of the ventilation tube through a screw motor. When the patient's body position changes, the device can automatically adjust the immersion depth of the ventilation tube and the maximum negative pressure value of the drainage system, thereby avoiding complications caused by changes in the patient's body position.

[0004] The technical solutions adopted by the present invention are as follows: An automatic adjustment device for a closed chest drainage bottle after autologous lung transplantation is applied to a three-chamber drainage bottle. The three-chamber drainage bottle includes a drainage bottle body, a pressure regulating chamber is provided inside the drainage bottle body, physiological saline is injected into the pressure regulating chamber, a pressure regulating tube is installed inside the pressure regulating chamber, and the upper end of the pressure regulating tube extends to the upper end of the pressure regulating chamber. The automatic adjustment device includes: An inclination sensor is placed on the patient's torso and is capable of detecting changes in the patient's body position. A pressure regulating portion, which is assembled on the drainage bottle body and is adapted to the pressure regulating tube. The pressure regulating portion includes a vent tube and a cover plate. The vent tube is assembled inside the pressure regulating tube in a clearance fit manner. The cover plate is slidably connected to the outside of the vent tube, and the cover plate and the pressure regulating tube are tightly fitted. A clamping portion, the clamping portion is assembled on the drainage bottle body and connected to the pressure regulating portion; Among them, after the cover plate and the pressure regulating tube are tightly fitted, the cover plate forms a blockage for the pressure regulating tube. When the patient drives the inclination sensor to change its body position, the pressure regulating part is operated, and the ventilation tube is driven by the pressure regulating part to move in the vertical direction to adjust the immersion depth of the cover plate.

[0005] In a preferred embodiment, the pressure regulating part also includes a first shell, two support arms and a screw motor. The first shell is assembled on the upper end of the drainage bottle body and is located at the upper end of the pressure regulating tube. The two support arms are respectively fixed to the two ends of the bottom of the first shell. The screw motor is fixed to the inside of the first shell. The internal thread of the screw motor is connected to the transmission screw, and the ventilation pipe is detachably fixed to the lower end of the outer side of the transmission screw, and the cover plate is fixed between the two support arms.

[0006] In a preferred embodiment, a first control unit and a first energy storage unit are fixed inside the first shell, and the first control unit and the inclination sensor are adapted to each other, and the screw motor and the first energy storage unit, the screw motor and the first control unit, and the first control unit and the first energy storage unit are electrically connected through wires.

[0007] In a preferred embodiment, a through hole is provided inside the transmission screw, a ventilation hole is provided on the outside of the first shell, and the ventilation pipe and the first shell are connected to each other through the through hole, and the ventilation pipe, through hole and ventilation hole constitute a pressure regulating channel.

[0008] In a preferred embodiment, a sealing gasket is fixed to the lower end of the cover plate, and in the drainage state, the sealing gasket is in a compressed state.

[0009] In a preferred embodiment, the clamping portion includes multiple clamping plates and multiple second shells, and the multiple clamping plates are respectively assembled on both sides of the first shell, and the multiple second shells are respectively fixed on the side where the multiple clamping plates are close to each other, wherein a clamping motor and a guide rod are fixed inside one of the second shells, a threaded rod is fixed on the output end of the clamping motor, and the threaded rod is rotatably connected to the second shell, and a guide sleeve rod and a threaded sleeve rod are fixed inside the other second shell, and the guide rod and the guide sleeve rod, the support arm and the guide sleeve rod, and the support arm and the threaded sleeve rod are all slidably connected, and the threaded rod and the threaded sleeve rod are threadedly connected.

[0010] In a preferred solution, an anti-skid pad is fixed on one side of the two clamping plates that are close to each other and located at the lower end of the second shell, and a plurality of anti-skid grooves are formed on the surface of the anti-skid pad.

[0011] In a preferred embodiment, a second control unit and a second energy storage unit are fixed inside the second shell, and the clamping motor and the second control unit, the clamping motor and the second energy storage unit, and the second control unit and the second energy storage unit are electrically connected via wires.

[0012] In a preferred embodiment, charging connectors are provided on the outsides of the first shell and the second shell, and the two charging connectors are electrically connected to the first energy storage unit and the second energy storage unit respectively.

[0013] The technical effects achieved by the present invention are: The present invention monitors the patient's torso angle through an inclination sensor, determines the patient's body position based on the patient's torso angle, and uses a screw motor to drive the ventilation tube and the transmission screw to move in the vertical direction to adjust the immersion depth of the ventilation tube. This allows the device to automatically adjust the immersion depth of the ventilation tube and the maximum negative pressure value of the drainage system when the patient's body position changes, thereby avoiding complications caused by changes in the patient's body position and reducing the workload of medical staff. The present invention covers the pressure regulating tube by a cover plate, and reconstructs the pressure regulating channel by cooperating with the vent tube, the through hole and the ventilation hole, so that the device can be applied to three-chamber drainage bottles of different sizes, thereby increasing the applicability of the device. The present invention drives the two clamping plates to move through a clamping motor. When the two clamping plates are tightly fitted with the two sides of the drainage bottle body, the drainage bottle body is clamped by the cooperation of the two clamping plates, and the pressure regulating part is limited by the clamping part, so that the device can work stably and is applicable to three-chamber drainage bottles of different sizes, further improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the combination of the present invention and a three-chamber drainage bottle; Figure 2 It is a schematic structural diagram of the present invention as a whole; Figure 3 It is a structural schematic diagram of the voltage regulating portion of the present invention; Figure 4 This is an exploded diagram of the structure of the voltage regulating portion of the present invention; Figure 5 It is a structural schematic diagram of the clamping portion of the present invention; Figure 6 This is an exploded view of the structure of the clamping portion of the present invention; Figure 7 This invention Figure 1 A local enlarged schematic diagram of point A in the middle.

[0015] In the accompanying drawings, the components represented by the reference numerals are as follows: 1. Drainage bottle; 2. Pressure regulating tube; 10. Tilt sensor; 20. Pressure regulating unit; 21. Ventilation pipe; 22. Cover plate; 23. First housing; 24. Support arm; 25. Screw motor; 26. Transmission screw; 27. First control unit; 28. Through hole; 29. Ventilation hole; 30. Clamping portion; 31. Clamping plate; 32. Second housing; 33. Clamping motor; 34. Guide rod; 35. Threaded rod; 36. Guide sleeve rod; 37. Threaded sleeve rod; 38. Second control unit. DETAILED DESCRIPTION

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0017] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it constitute a separate or selective embodiment that is mutually exclusive of other embodiments.

[0019] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing the embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[0020] Please see the attached Figures 1 to 4 as well as Figure 7 FIG. 1 is a first embodiment of the present invention, which provides an automatic adjustment device for a closed chest drainage bottle after autologous lung transplantation, and is applied to a three-chamber drainage bottle. The three-chamber drainage bottle includes a drainage bottle body 1, wherein the interior of the drainage bottle body 1 is sequentially provided with a fluid collection chamber, a water seal chamber, and a pressure regulating chamber from one end to the other. Both the water seal chamber and the pressure regulating chamber are filled with physiological saline, and the fluid collection chamber and the water seal chamber, as well as the water seal chamber and the pressure regulating chamber, are connected by pipelines. A pressure regulating tube 2 is installed inside the pressure regulating chamber, and the upper end of the pressure regulating tube 2 extends to the upper end of the pressure regulating chamber. The automatic adjustment device includes: The inclination sensor 10 is placed on the patient's torso and can detect changes in the patient's body position; The pressure regulating part 20 is assembled on the drainage bottle body 1 and is adapted to the pressure regulating tube 2. The pressure regulating part 20 includes a vent tube 21 and a cover plate 22. The vent tube 21 is assembled inside the pressure regulating tube 2 in a clearance fit manner. The cover plate 22 is slidably connected to the outside of the vent tube 21, and the cover plate 22 and the pressure regulating tube 2 are tightly fitted. The clamping portion 30 is assembled on the drainage bottle body 1 and is connected to the pressure regulating portion 20. The clamping portion 30 can clamp the drainage bottle body 1 and limit the pressure regulating portion 20. Among them, after the cover plate 22 and the pressure regulating tube 2 are tightly fitted, the cover plate 22 forms a blockage on the pressure regulating tube 2. When the patient drives the inclination sensor 10 to change its body position, the pressure regulating part 20 is operated, and the ventilation tube 21 is driven by the pressure regulating part 20 to move in the vertical direction to adjust the immersion depth of the cover plate 22.

[0021] It should be noted that a drainage tube is detachably connected to the upper end of the effusion cavity, and the end of the drainage tube away from the drainage bottle body 1 is placed at the place in the patient's body where drainage is required. In the initial state and after physiological saline is injected into the pressure regulating cavity, the immersion depth of the ventilation tube 21 is 8 to 12 cm.

[0022] Furthermore, in this embodiment, the inclinometer 10 is adhered to the chest of the patient by means of tape. Of course, the inclinometer 10 can also be detachably fixed to the patient's torso or clothes by other means, such as clips, etc. Here, as long as the inclinometer 10 can be fixed to the patient's torso so that the inclinometer 10 can monitor whether the patient's body position has changed, no further limitation is made.

[0023] In this embodiment, when the patient is undergoing chest drainage, the patient maintains a supine position, the inclination sensor 10 is bonded to the patient's chest area, the patient's torso angle is obtained through the inclination sensor 10, the patient's position is monitored, and an appropriate amount of physiological saline is injected into the water seal chamber and the pressure regulating chamber respectively. The ventilation tube 21 is inserted into the interior of the pressure regulating tube 2, and the cover plate 22 and the upper end of the pressure regulating tube 2 are tightly fitted. The pressure regulating tube 2 is sealed by the cover plate 22, so that the pressure regulating tube 2 can no longer adjust the maximum negative pressure value of the drainage system. The clamping part 30 is started, and the pressure regulating part 20 is limited by the clamping part 30. The pressure regulating part 20 is started. After the pressure regulating part 20 is operated, the ventilation tube 21 moves in the vertical direction so that the lower end of the ventilation tube 21 is located 10 cm below the physiological saline liquid level. At the same time, after the cover plate 22 and the pressure regulating tube 2 are fitted, the extension directions of the ventilation tube 21 and the pressure regulating tube 2 remain the same, which can avoid ventilation. During the movement of the tube 21 inside the pressure regulating tube 2, the pressure regulating tube 2 causes the ventilation tube 21 to twist. When the patient changes to a semi-recumbent position or a sitting position, the chest cavity volume in the patient's body changes. The patient's position change is obtained through the inclination sensor 10, and the pressure regulating part 20 is operated to cause the ventilation tube 21 to move in the vertical direction. The maximum negative pressure value of the drainage system is adjusted by adjusting the immersion depth of the ventilation tube 21, so that the maximum negative pressure value of the drainage system can be adjusted in time according to the patient's position change. In this process, the ventilation tube 21 and the cover plate 22 cooperate to replace the function of the pressure regulating tube 2, so that the device can be applied to different models of drainage bottles 1, that is, the device can adapt to pressure regulating tubes 2 with different inner diameters, thereby improving the applicability of the device. At the same time, the maximum negative pressure value of the drainage system (that is, the three-chamber drainage bottle) can be automatically adjusted according to the patient's position change, thereby avoiding complications for the patient and reducing the workload of medical staff.

[0024] It should be noted that the immersion depth refers to the height at which the lower end of the ventilation tube 21 is immersed below the level of the physiological saline solution inside the pressure regulating chamber, and the torso angle refers to the angle between the patient's torso and the horizontal plane.

[0025] In a specific embodiment, when the angle between the patient's trunk and the horizontal plane is 0-30°, it is recorded as a supine position; when the angle between the patient's trunk and the horizontal plane is 30-75°, it is recorded as a semi-recumbent position; when the angle between the patient's trunk and the horizontal plane is 75-90°, it is recorded as a sitting position; of course, the angle ranges of the above-mentioned postures are only examples, and in actual application, they can be adjusted according to clinical needs.

[0026] In another specific embodiment, when the patient is in a supine position, the immersion depth of the ventilation tube 21 is 8 to 12 cm; when the patient's position changes from a supine position to a semi-recumbent position, the immersion depth of the ventilation tube 21 increases by 1 to 2 cm, and the negative pressure of the drainage system increases by 1 to 2 cmH2O; when the patient's position changes from a semi-recumbent position to a sitting position, the immersion depth of the ventilation tube 21 increases by 2 to 4 cm, and the negative pressure of the drainage system increases by 2 to 4 cmH2O; when the patient's position changes from a sitting position to a semi-recumbent position, the immersion depth of the ventilation tube 21 decreases by 2 to 4 cm, and the negative pressure of the drainage system decreases by 2 to 4 cmH2O; when the patient's position changes from a semi-recumbent position to a supine position, the immersion depth of the ventilation tube 21 decreases by 1 to 2 cm, and the negative pressure of the drainage system decreases by 1 to 2 cmH2O; of course, the above-mentioned immersion depth movement distance of the ventilation tube 21 and the negative pressure change value are only examples. In actual application, they can be adjusted according to clinical needs.

[0027] In another specific embodiment, during chest drainage of a patient using a three-chamber drainage bottle, if the patient changes from a supine position to a sitting position, gravity will cause the diaphragm to move downward, and the patient's chest volume will increase. The inclination sensor 10 sends the torso angle value to the first control unit 27 by wireless communication, and the first control unit 27 starts the screw motor 25, so that the screw motor 25 drives the ventilation tube 21 and the transmission screw 26 to move downward synchronously by 5 cm. The immersion depth of the ventilation tube 21 increases, so that the maximum negative pressure value of the drainage system increases, thereby avoiding the risk of drainage cessation for the patient.

[0028] In another specific embodiment, during chest drainage of a patient using a three-chamber drainage bottle, if the patient changes from a semi-recumbent position to a supine position, the diaphragm moves upward relative to the trunk, and the patient's chest volume decreases. The inclination sensor 10 sends the trunk angle to the first control unit 27 by wireless communication, and the first control unit 27 starts the screw motor 25, so that the screw motor 25 drives the ventilation tube 21 and the transmission screw 26 to move upward 2 cm synchronously, and the immersion depth of the ventilation tube 21 is reduced, so that the maximum negative pressure value of the drainage system is reduced, thereby avoiding the maximum negative pressure value of the drainage system being too large, which may cause complications such as expansion of bronchopleural fistula and re-expansion pulmonary edema in the patient.

[0029] Next, please refer to Figure 3 and Figure 4The pressure regulating part 20 also includes a first shell 23, two support arms 24 and a screw motor 25. The first shell 23 is assembled on the upper end of the drainage bottle body 1 and is located at the upper end of the pressure regulating tube 2. The two support arms 24 are respectively fixed to the two ends of the bottom of the first shell 23. The screw motor 25 is fixed to the inside of the first shell 23. The internal thread of the screw motor 25 is connected to the transmission screw 26, and the ventilation pipe 21 is detachably sleeved on the lower end of the outer side of the transmission screw 26. The cover plate 22 is fixed between the two support arms 24. The interior of the first shell 23 is fixed. There is a first control unit 27 and a first energy storage unit, and the first control unit 27 is adapted to the inclination sensor 10. The screw motor 25 and the first energy storage unit, the screw motor 25 and the first control unit 27, and the first control unit 27 and the first energy storage unit are electrically connected through wires. A through hole 28 is provided inside the transmission screw 26, and a ventilation hole 29 is provided on the outside of the first shell 23. The ventilation pipe 21 and the first shell 23 are connected to each other through the through hole 28. The ventilation pipe 21, the through hole 28 and the ventilation hole 29 constitute a pressure regulating channel.

[0030] Here, a wireless communication module and a power supply unit are provided inside the inclination sensor 10. The wireless communication module and the first control unit 27 are connected via wireless signals. When the patient's body position changes, the inclination sensor 10 sends the changed angle of the patient's body position to the first control unit 27 via wireless signals. According to the patient's torso angle, the first control unit 27 starts the screw motor 25 and adjusts the moving distance and direction of the ventilation tube 21 through the screw motor 25.

[0031] It should be noted that the first control unit 27 has a matching control program stored internally. When the inclination sensor 10 obtains the angle value of the patient's body position change, the screw motor 25 can move the ventilation tube 21 a corresponding distance according to the control program. Furthermore, the control program is programmed according to actual clinical needs, which will not be further elaborated here.

[0032] In this embodiment, when chest drainage is performed on a patient, the pressure regulating tube 2 is covered by the cover plate 22, rendering the pressure regulating tube 2 ineffective, and the pressure regulating channel is reconstructed through the cooperation of the ventilation tube 21, the through hole 28 and the ventilation hole 29, so that the pressure regulating chamber and the atmosphere (i.e., the environment outside the device) remain interconnected. When the patient's body position changes, the patient's torso angle is obtained by the inclination sensor 10, and the screw motor 25 is started by the first control unit 27 according to the patient's torso angle. The screw motor 25 drives the transmission screw 26 to rotate and move in the vertical direction. The transmission screw 26 and the ventilation tube 21 are fixedly connected, so that the transmission screw 26 drives the ventilation tube 21 to move in the vertical direction, thereby adjusting the immersion depth of the ventilation tube 21.

[0033] In a preferred embodiment, a sealing gasket is fixed to the lower end of the cover plate 22, and in the drainage state, the sealing gasket is in a compressed state.

[0034] In this embodiment, the provision of the sealing gasket can improve the sealing effect of the cover plate 22 on the pressure regulating tube 2. The compressed sealing gasket can prevent the interior of the pressure regulating chamber and the atmosphere from being connected to each other through the pressure regulating tube 2, thereby enabling the device to timely adjust the immersion depth of the ventilation tube 21 and the maximum negative pressure value of the drainage system according to changes in the patient's body position.

[0035] Please refer again Figures 5 and 6 As shown, the clamping part 30 includes multiple clamping plates 31 and multiple second shells 32, and the multiple clamping plates 31 are respectively assembled on both sides of the first shell 23, and the multiple second shells 32 are respectively fixed on the side where the multiple clamping plates 31 are close to each other, wherein a clamping motor 33 and a guide rod 34 are fixed inside one second shell 32, and a threaded rod 35 is fixed to the output end of the clamping motor 33, and the threaded rod 35 is rotatably connected to the above-mentioned second shell 32, and a guide sleeve 36 and a threaded sleeve 37 are fixed inside the other second shell 32, and the guide rod 34 and the guide sleeve 36, the support arm 24 and the guide sleeve 36, and the support arm 24 and the threaded sleeve 37 are all slidingly connected, and the threaded rod 35 and the threaded sleeve 37 are threadedly connected, and a second control unit 38 and a second energy storage unit are fixed inside one second shell 32, and the clamping motor 33 and the second control unit 38, the clamping motor 33 and the energy storage unit, and the second control unit 38 and the energy storage unit are all electrically connected through wires.

[0036] In this embodiment, when chest drainage is performed on the patient, the ventilation tube 21 is inserted into the pressure regulating tube 2 so that the cover plate 22 and the top of the pressure regulating tube 2 fit tightly together. The cooperation between the ventilation tube 21 and the pressure regulating tube 2 forms a small range of limit for the pressure regulating part 20. The clamping motor 33 is started by the second control unit 38 to make the clamping motor 33 run. The fixed connection between the clamping motor 33 and the threaded rod 35 and the threaded connection between the threaded rod 35 and the threaded sleeve 37 makes the threaded rod 35 drive the threaded sleeve 37 to move, and then the threaded sleeve 37 drives the two second shells 32 and the two clamping plates 31 to move toward each other. When the two clamping plates 31 are tightly fitted with the drainage bottle body 1, the cooperation of the two clamping plates 31 forms a limit for the automatic adjusting device, so that the automatic adjusting device and the drainage bottle body 1 remain relatively stationary.

[0037] In a preferred embodiment, an anti-skid pad is fixed on the side of the two clamping plates 31 that are close to each other and located at the lower end of the second shell 32, and the surface of the anti-skid pad is provided with a plurality of anti-skid grooves.

[0038] In this embodiment, the provision of the anti-slip pad can increase the friction between the clamping plate 31 and the drainage bottle body 1, so that the clamping portion 30 can stably limit the pressure regulating portion 20 in the vertical direction.

[0039] In a preferred embodiment, charging connectors (not shown in the figure) are provided on the outside of the first shell 23 and the second shell 32, and the charging connector provided on the first shell 23 and the first energy storage unit, as well as the charging connector provided on the second shell 32 and the second energy storage unit are electrically connected through wires.

[0040] In this embodiment, after the charging connector is connected to the mains or other power supply element, the first energy storage unit and the second energy storage unit can be charged by the mains or other power supply element, thereby improving the portability of the device.

[0041] The working principle of the present invention is: When performing chest drainage on the patient, the patient maintains a supine position, and the inclination sensor 10 is bonded to the patient's chest area. The patient's position is monitored by the inclination sensor 10, and an appropriate amount of physiological saline is injected into the water seal cavity and the pressure regulating cavity respectively. The ventilation tube 21 is inserted into the interior of the pressure regulating tube 2, and the cover plate 22 and the upper end of the pressure regulating tube 2 are tightly fitted. The clamping motor 33 is started by the second control unit 38, so that the clamping motor 33 drives the threaded rod 35 to rotate, thereby causing the two clamping plates 31 to move toward each other until the two clamping plates 31 are tightly fitted to the drainage bottle body 1. The drainage bottle 1 is clamped by two clamping plates 31, and the first control unit 27 activates the screw motor 25, which drives the ventilation tube 21 and the transmission screw 26 to move synchronously, adjusting the immersion depth of the ventilation tube 21 to 10 cm. When the patient's position changes, the inclination sensor 10 obtains the patient's torso angle and sends a corresponding signal to the first control unit 27, which activates the screw motor 25 to adjust the immersion depth of the ventilation tube 21 in real time, allowing the device to automatically adjust the maximum negative pressure value of the drainage system according to the patient's position change.

[0042] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained herein shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. An automatic regulating device for a closed chest drainage bottle after autologous lung transplantation, applied to a three-chamber drainage bottle, the three-chamber drainage bottle comprising a drainage bottle body (1), a pressure regulating chamber provided inside the drainage bottle body (1), physiological saline injected into the pressure regulating chamber, a pressure regulating tube (2) provided inside the pressure regulating chamber, and the upper end of the pressure regulating tube (2) extending to the upper end of the pressure regulating chamber, characterized in that: The automatic adjustment device comprises: An inclination sensor (10), the inclination sensor (10) being placed on the patient's torso, the inclination sensor (10) being capable of acquiring changes in the patient's body position; A pressure regulating portion (20), the pressure regulating portion (20) being assembled on the drainage bottle body (1), and the pressure regulating portion (20) and the pressure regulating tube (2) being adapted to each other, the pressure regulating portion (20) comprising a vent tube (21) and a cover plate (22), the vent tube (21) being assembled inside the pressure regulating tube (2), the cover plate (22) being slidably connected to the outside of the vent tube (21), and the cover plate (22) and the pressure regulating tube (2) being tightly fitted; A clamping portion (30), the clamping portion (30) is assembled on the drainage bottle body (1), and the clamping portion (30) is connected to the pressure regulating portion (20); When the cover plate (22) and the pressure regulating tube (2) are tightly fitted together, the cover plate (22) blocks the pressure regulating tube (2). When the patient drives the inclination sensor (10) to change its body position, the pressure regulating unit (20) operates, and the pressure regulating unit (20) drives the ventilation tube (21) to move in the vertical direction to adjust the immersion depth of the cover plate (22).

2. The automatic adjustment device for a closed chest drainage bottle after autologous lung transplantation according to claim 1, characterized in that: The pressure regulating portion (20) further comprises a first shell (23), two support arms (24) and a screw motor (25), wherein the first shell (23) is assembled on the upper end of the drainage bottle body (1) and is located at the upper end of the pressure regulating tube (2), the two support arms (24) are respectively fixed to the two ends of the bottom of the first shell (23), the screw motor (25) is fixed inside the first shell (23), the internal thread of the screw motor (25) is connected to the transmission screw (26), and the ventilation tube (21) is detachably fixed to the lower end of the outer side of the transmission screw (26), and the cover plate (22) is fixed between the two support arms (24).

3. The automatic adjustment device for a closed chest drainage bottle after autologous lung transplantation according to claim 2, characterized in that: A first control unit (27) and a first energy storage unit are fixed inside the first housing (23), and the first control unit (27) is adapted to the inclination sensor (10). The screw motor (25) and the first energy storage unit, the screw motor (25) and the first control unit (27), and the first control unit (27) and the first energy storage unit are all electrically connected via wires.

4. The automatic adjustment device for a closed chest drainage bottle after autologous lung transplantation according to claim 2, characterized in that: A through hole (28) is provided inside the transmission screw (26), a ventilation hole (29) is provided on the outside of the first shell (23), and the ventilation pipe (21) and the first shell (23) are connected to each other through the through hole (28), and the ventilation pipe (21), the through hole (28) and the ventilation hole (29) constitute a pressure regulating channel.

5. The automatic adjustment device for a closed chest drainage bottle after autologous lung transplantation according to claim 1, characterized in that: A sealing gasket is fixed to the lower end of the cover plate (22); in the drainage state, the sealing gasket is in a compressed state.

6. The automatic adjustment device for a closed chest drainage bottle after autologous lung transplantation according to claim 2, characterized in that: The clamping portion (30) includes a plurality of clamping plates (31) and a plurality of second shells (32), wherein the plurality of clamping plates (31) are respectively assembled on both sides of the first shell (23), and the plurality of second shells (32) are respectively fixed to the sides of the plurality of clamping plates (31) close to each other, wherein a clamping motor (33) and a guide rod (34) are fixed inside one of the second shells (32), a threaded rod (35) is fixed to the output end of the clamping motor (33), and the threaded rod (35) and the second shell (32) are rotatably connected, and a guide sleeve rod (36) and a threaded sleeve rod (37) are fixed inside another of the second shells (32), the guide rod (34) and the guide sleeve rod (36), the support arm (24) and the guide sleeve rod (36), and the support arm (24) and the threaded sleeve rod (37) are all slidably connected, and the threaded rod (35) and the threaded sleeve rod (37) are threadedly connected.

7. The automatic adjustment device for a closed chest drainage bottle after autologous lung transplantation according to claim 6, characterized in that: An anti-skid pad is fixed on one side of the two clamping plates (31) that is close to each other and located at the lower end of the second shell (32), and a plurality of anti-skid grooves are provided on the surface of the anti-skid pad.

8. The automatic adjustment device for a closed chest drainage bottle after autologous lung transplantation according to claim 6, characterized in that: A second control unit (38) and a second energy storage unit are fixed inside the second housing (32), and the clamping motor (33) and the second control unit (38), the clamping motor (33) and the second energy storage unit, and the second control unit (38) and the second energy storage unit are all electrically connected via wires.

9. The automatic adjustment device for a closed chest drainage bottle after autologous lung transplantation according to claim 6, characterized in that: Charging connectors are provided on the outsides of the first shell (23) and the second shell (32), and the two charging connectors are electrically connected to the first energy storage unit and the second energy storage unit respectively.

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