Drainage device

Abstract

The invention discloses a drainage device, belongs to the technical field of drainage, and aims to solve the problems that when an existing closed drainage device for the thoracic cavity is used, a water-sealed bottle always generates negative pressure adsorption on the thoracic cavity of a patient, so that hydrops and air in the thoracic cavity of the patient are discharged into the water-sealed bottle; and the patient is difficult to breathe due to continuous long-time negative pressure adsorption on the thoracic cavity of the patient. The device comprises a placing frame, a drainage bottle is arranged in the placing frame, and a drainage tube and a ventilation tube are arranged on the drainage bottle; a supporting frame is further arranged at the top of the containing frame, and an extrusion device is arranged at the top of the supporting frame. The extrusion device comprises two cams which are symmetrically arranged, the two cams are rotationally connected to the top of the supporting frame through two rotating shafts correspondingly, and the ventilation pipe is located between the two cams; the extrusion device further comprises a driving mechanism used for driving the two cams to rotate at the same time. According to the drainage device, the problem that an existing drainage device continuously conducts negative pressure adsorption on the thoracic cavity of a patient for a long time, and therefore the patient expires difficultly can be solved.

Description

Technical Field

[0001] This invention belongs to the field of drainage technology, and specifically relates to a drainage device. Background Technology

[0002] Closed chest drainage involves inserting one end of a drainage tube into the pleural cavity, while the other end is connected to a water-seal bottle positioned lower down. This allows for the drainage of air or collection of fluid from the pleural cavity, enabling the lung tissue to reopen and restore function. As a treatment method, it is widely used for the drainage of hemothorax, pneumothorax, and empyema, as well as post-thoracotomy procedures, playing a vital role in the treatment of these diseases.

[0003] When using existing closed chest drainage devices, the water seal bottle continuously creates negative pressure on the patient's chest cavity, causing pleural effusion and air to drain into the water seal bottle. This continuous negative pressure on the patient's chest cavity for an extended period makes it difficult for the patient to exhale. Summary of the Invention

[0004] In view of this, the present invention provides a drainage device to solve the problem that when existing closed chest drainage devices are used, the water seal bottle continuously generates negative pressure adsorption on the patient's chest cavity, causing the effusion and air in the patient's chest cavity to drain into the water seal bottle, and the continuous negative pressure adsorption on the patient's chest cavity for a long time makes it difficult for the patient to exhale.

[0005] The technical solution adopted in this invention is as follows:

[0006] A drainage device includes a placement frame, within which a drainage bottle is placed, and the drainage bottle is provided with a drainage tube and a venting tube. A support frame is also provided at the top of the placement frame, and a squeezing device is provided at the top of the support frame. The squeezing device includes two symmetrically arranged cams, which are rotatably connected to the top of the support frame via two rotating shafts, with the venting tube located between the two cams. The squeezing device further includes a drive mechanism for driving the two cams to rotate simultaneously.

[0007] In this technical solution, it should be noted that an opening is provided on one side of the placement frame, through which the drainage bottle can be placed. Secondly, the principle of the drainage bottle is based on existing technology. During drainage, liquid is filled into the bottle, ensuring the bottom of the drainage tube is below the liquid surface and the bottom of the ventilation tube is above it. The other end of the drainage tube is then inserted into the patient's body, allowing drainage through negative pressure. In this solution, to prevent the drainage tube from continuously exerting negative pressure on the patient's chest cavity, two cams are used. During drainage, a drive mechanism rotates both cams simultaneously. The cams periodically compress the ventilation tube, sealing it during this time, at which point drainage stops. After a period, the cams no longer contact the ventilation tube, the tube unseales, and drainage resumes. This cycle repeats, allowing the patient to adjust their breathing rate according to the opening and closing of the ventilation tube. This prevents the existing drainage device from continuously exerting negative pressure on the patient's chest cavity, which would cause difficulty in exhalation.

[0008] Preferably, the drive mechanism includes a motor and a conveyor belt. The motor is located on the top of the support frame, and the output shaft of the motor is fixedly connected to one of the rotating shafts. The conveyor belt connects the two rotating shafts.

[0009] In this technical solution, it should be noted that when it is necessary to make the two cams rotate, the motor is started, the motor drives one of the rotating shafts to rotate, and the other rotating shaft rotates simultaneously under the action of the conveyor belt, thereby making the two cams rotate at the same time.

[0010] Preferably, the top of the support frame is provided with a first extrusion plate and a second extrusion plate, the second extrusion plate being slidably connected to the support frame, the drainage pipe being located between the first extrusion plate and the second extrusion plate, and the second extrusion plate contacting two cams. The top of the support frame is also symmetrically provided with two upright plates, each with a guide post at one end facing the second extrusion plate, and the second extrusion plate being slidably sleeved on the guide post. An elastic element is sleeved on the guide post, one end of which is connected to the second extrusion plate, and the other end is connected to the upright plate.

[0011] In this technical solution, it should be noted that during the drainage process, there may be lumps of tissue or blood clots in the drainage tube, which can easily cause blockage. Therefore, this solution is equipped with two compression plates, the second of which is movable. Through its own movement and in cooperation with the first compression plate, it continuously compresses the drainage tube, crushing the blood clots or lumps of tissue inside the drainage tube and reducing the chance of blockage. The specific principle is as follows: while the two cams rotate and compress the ventilator, they also continuously compress the second compression plate, causing the second compression plate to move back and forth continuously through the action of the elastic element. During the back and forth movement of the second compression plate, it cooperates with the first compression plate to crush the lumps of tissue inside the drainage tube, reducing the chance of blockage.

[0012] Preferably, the elastic element is a spring.

[0013] Preferably, the opposite ends of the first extrusion plate and the second extrusion plate are each provided with a plurality of protrusions.

[0014] It should be noted that the protrusions in this technical solution can better crush blocky tissue.

[0015] Preferably, the bottom sidewall of the placement frame is provided with a plurality of stabilizing plates, which are spaced apart along the circumference of the placement frame. A rubber pad is provided at the bottom of each stabilizing plate.

[0016] It should be noted that the stabilizing plate and rubber pads in this technical solution can make the placement frame structure of the device more stable.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0018] 1. In this invention, during drainage, two cams are driven to rotate simultaneously by a drive mechanism. The two cams will squeeze the ventilator at intervals, so that the ventilator is in a sealed state during this period. At this time, drainage stops. After a period of time, the cams no longer contact the ventilator, the ventilator is unsealed, and drainage continues. This cycle is repeated. The patient adjusts the respiratory rate according to the opening and closing of the ventilator, which can prevent the existing drainage device from continuously adsorbing negative pressure on the patient's chest cavity for a long time, making it difficult for the patient to exhale.

[0019] 2. In this invention, while the two cams rotate and squeeze the vent tube, they also continuously squeeze the second squeezing plate, causing the second squeezing plate to move back and forth continuously through the action of the elastic element. During the back and forth movement of the second squeezing plate, it cooperates with the first squeezing plate to crush the blocky tissue inside the drainage tube and reduce the probability of the drainage tube being blocked.

[0020] 3. In this invention, the two cams are symmetrically arranged, which makes the second extrusion plate subjected to balanced forces from left to right, thus improving the stability of the entire device;

[0021] 4. In this invention, the protrusions can better crush lumpy tissue, further reducing the chance of drainage tube blockage. Attached Figure Description

[0022] The present invention will be described by way of example and with reference to the accompanying drawings, wherein:

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure after cutting;

[0025] Figure 3 yes Figure 2 A schematic diagram of the three-dimensional structure after cutting;

[0026] Figure 4 This is a schematic diagram of the inclined three-dimensional structure of the present invention;

[0027] Figure 5 This is a three-dimensional structural diagram of the drainage bottle of the present invention;

[0028] Figure 6 This is a three-dimensional structural diagram of the placement frame of the present invention.

[0029] Figure Labels

[0030] 10-Placement frame, 11-Support frame, 20-Drainage bottle, 21-Ventilation tube, 22-Drainage tube, 30-Cam, 31-Rotating shaft, 32-Motor, 33-Conveyor belt, 40-First extrusion plate, 41-Second extrusion plate, 42-Protrusion, 43-Upright plate, 44-Guide column, 45-Elastic element, 50-Stabilizing plate, 51-Rubber pad. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this invention can be combined with each other.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] It should be noted that, unless otherwise specified, the embodiments and features described in this invention can be combined with each other.

[0037] Example

[0038] like Figures 1-6 As shown in the figure, an embodiment of the present invention discloses a drainage device, including a placement frame 10, a drainage bottle 20 is provided inside the placement frame 10, and a drainage tube 22 and a venting tube 21 are provided on the drainage bottle 20; a support frame 11 is also provided on the top of the placement frame 10, and a squeezing device is provided on the top of the support frame 11; the squeezing device includes two symmetrically arranged cams 30, the two cams 30 are rotatably connected to the top of the support frame 11 through two rotating shafts 31, and the venting tube 21 is located between the two cams 30; the squeezing device also includes a driving mechanism for driving the two cams 30 to rotate simultaneously. It should be noted that an opening is provided on one side of the placement frame 10, through which the drainage bottle 20 can be placed into the placement frame 10. Secondly, the principle of the drainage bottle 20 is based on existing technology. During drainage, liquid is filled into the drainage bottle 20, ensuring that the bottom end of the drainage tube 22 is below the liquid surface and the bottom end of the ventilation tube is above the liquid surface. Then, the other end of the drainage tube 22 is inserted into the patient's body, allowing drainage to occur through negative pressure. In this design, to prevent the drainage tube 22 from continuously adsorbing negative pressure onto the patient's pleural cavity, two... During drainage, two cams 30 are driven to rotate simultaneously by a drive mechanism. The two cams 30 will squeeze the ventilator 21 at intervals, so that the ventilator 21 is in a sealed state during this period. At this time, drainage stops. After a period of time, the cams 30 no longer contact the ventilator 21, the ventilator 21 is unsealed, and drainage continues. This cycle is repeated. The patient adjusts the breathing rate according to the opening and closing of the ventilator 21, which can prevent the existing drainage device from continuously adsorbing negative pressure on the patient's chest cavity, which would make the patient have difficulty exhaling.

[0039] like Figure 3As shown, in this embodiment, the driving mechanism includes a motor 32 and a conveyor belt 33. The motor 32 is mounted on the top of the support frame 11, and the output shaft of the motor 32 is fixedly connected to one of the rotating shafts 31. The conveyor belt 33 connects the two rotating shafts 31. It should be noted that when it is necessary to rotate the two cams 30, the motor 32 is started, and the motor 32 drives one of the rotating shafts 31 to rotate. The other rotating shaft 31 rotates simultaneously under the action of the conveyor belt 33, thereby causing the two cams 30 to rotate simultaneously.

[0040] like Figure 2 As shown, in this embodiment, the top of the support frame 11 is provided with a first extrusion plate 40 and a second extrusion plate 41. The second extrusion plate 41 is slidably connected to the support frame 11. The drainage pipe 22 is located between the first extrusion plate 40 and the second extrusion plate 41. The second extrusion plate 41 is in contact with two cams 30. The top of the support frame 11 is also symmetrically provided with two upright plates 43. One end of the two upright plates 43 facing the second extrusion plate 41 is provided with a guide post 44, and the second extrusion plate 41 is slidably sleeved on the guide post 44. An elastic element 45 is sleeved on the guide post 44. One end of the elastic element 45 is connected to the second extrusion plate 41, and the other end is connected to the upright plate 43. It should be noted that during the drainage process, there may be lumps of tissue or blood clots in the drainage tube 22, which can easily cause blockage. Therefore, this solution is equipped with two compression plates, of which the second compression plate 41 is movable. Through its own movement and in cooperation with the first compression plate 40, it continuously compresses the drainage tube 22, so that the blood clots or lumps of tissue inside the drainage tube 22 are crushed, reducing the probability of blockage. The specific principle is as follows: while the two cams 30 rotate and compress the vent tube 21, they also continuously compress the second compression plate 41, so that the second compression plate 41 moves back and forth continuously under the action of the elastic element 45. During the back and forth movement of the second compression plate 41, in cooperation with the first compression plate 40, the lumps of tissue inside the drainage tube 22 can be crushed, reducing the probability of blockage.

[0041] like Figure 2 As shown, in this embodiment, the elastic element 45 is a spring.

[0042] like Figure 2 As shown, in this embodiment, the first extrusion plate 40 and the second extrusion plate 41 each have a plurality of protrusions 42 at their opposite ends. The protrusions 42 can better crush the blocky tissue.

[0043] like Figure 4As shown, in this embodiment, the bottom sidewall of the placement frame 10 is provided with a plurality of stabilizing plates 50, which are spaced apart circumferentially along the placement frame 10. A rubber pad 51 is provided at the bottom of each stabilizing plate 50. It should be noted that the stabilizing plates 50 and the rubber pad 51 make the structure of the placement frame 10 of this device more stable.

[0044] In this embodiment, a liquid level sensor is provided inside the drainage bottle to sense the liquid level in the drainage bottle in real time. The liquid level sensor is electrically connected to an external controller. When the liquid in the drainage bottle is about to overflow, the liquid level sensor sends a signal to the controller. The controller controls the output shaft of the motor to rotate until the two cams clamp the vent tube and close it, so that the drainage work stops and the drainage bottle is prevented from overflowing.

[0045] The principle of this embodiment is as follows:

[0046] First, place the placement frame 10 in the designated position, put the drainage bottle 20 into the placement frame 10, and put a certain amount of liquid into the drainage bottle 20. Then, install the drainage tube 22 and the ventilation tube 21 on the drainage bottle 20, and insert the head end of the drainage tube 22 into the patient's body. The drainage work begins. Start the motor 32. The motor 32 drives one of the rotating shafts 31 to rotate. The rotation of the rotating shaft 31 drives the other rotating shaft 31 to rotate through the conveyor belt 33, so that the two cams 30 rotate simultaneously. The two cams 30 will squeeze the ventilation tube 21 at intervals, so that the ventilation tube 21 is in a sealed state during this period of time. At this time, the drainage stops. After a period of time, the cams 30 no longer contact the ventilation tube 21, the ventilation tube 21 is unsealed, and the drainage continues. This cycle is repeated. The patient adjusts the breathing rate according to the opening and closing of the ventilation tube 21, which can prevent the existing drainage device from continuously adsorbing negative pressure on the patient's chest cavity, which would make the patient have difficulty exhaling.

[0047] Secondly, as the two cams 30 rotate, they also continuously squeeze the second squeezing plate 41, causing the second squeezing plate 41 to move back and forth continuously under the action of the elastic element 45. During the back and forth movement of the second squeezing plate 41, it cooperates with the first squeezing plate 40 to crush the blocky tissue inside the drainage tube 22 and reduce the chance of the drainage tube 22 becoming blocked.

[0048] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The scope of protection of this invention does not involve any improvement to the software and methods.

[0049] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0050] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A drainage device, characterized in that, It includes a placement frame (10), a drainage bottle (20) is provided inside the placement frame (10), and a drainage tube (22) and a venting tube (21) are provided on the drainage bottle (20); The top of the placement frame (10) is also provided with a support frame (11), and the top of the support frame (11) is provided with a pressing device; The extrusion device includes two symmetrically arranged cams (30), which are rotatably connected to the top of the support frame (11) via two rotating shafts (31), and the vent pipe (21) is located between the two cams (30); The extrusion device also includes a drive mechanism for driving the two cams (30) to rotate simultaneously.

2. The drainage device according to claim 1, characterized in that, The drive mechanism includes a motor (32) and a conveyor belt (33). The motor (32) is located on the top of the support frame (11), and the output shaft of the motor (32) is fixedly connected to one of the rotating shafts (31). The conveyor belt (33) connects the two rotating shafts (31).

3. The drainage device according to claim 1, characterized in that, The top of the support frame (11) is provided with a first extrusion plate (40) and a second extrusion plate (41). The second extrusion plate (41) is slidably connected to the support frame (11). The drainage tube (22) is located between the first extrusion plate (40) and the second extrusion plate (41). The second extrusion plate (41) is in contact with two cams (30).

4. The drainage device according to claim 3, characterized in that, The support frame (11) is also symmetrically provided with two upright plates (43) at the top. One end of the two upright plates (43) facing the second extrusion plate (41) is provided with a guide post (44), and the second extrusion plate (41) is slidably sleeved on the guide post (44). An elastic element (45) is sleeved on the guide post (44). One end of the elastic element (45) is connected to the second extrusion plate (41), and the other end is connected to the upright plate (43).

5. A drainage device according to claim 4, characterized in that, The elastic element (45) is a spring.

6. A drainage device according to claim 4, characterized in that, The first extrusion plate (40) and the second extrusion plate (41) are each provided with a plurality of protrusions (42) at opposite ends.

7. A drainage device according to claim 1, characterized in that, The bottom sidewall of the placement frame (10) is provided with a plurality of stabilizing plates (50), and the plurality of stabilizing plates (50) are arranged at intervals along the circumference of the placement frame (10).

8. A drainage device according to claim 7, characterized in that, The bottom of the stabilizing plate (50) is provided with a rubber pad (51).

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