Anti-blocking pleural effusion puncture drainage device

Abstract

The application relates to the technical field of drainage devices, and discloses a chest fluid puncture drainage device capable of preventing blockage, which comprises a drainage box, a drainage tube and a backflushing assembly. The top end of the drainage box is threadedly connected with a sealing cover. The sealing cover is fixedly connected with a flow guide pipe in the height direction of the drainage box. The bottom end of the flow guide pipe extends to the inside bottom end of the drainage box, and the top end of the flow guide pipe extends above the sealing cover. The chest fluid puncture drainage device capable of preventing blockage is convenient to separate the backflushing assembly, facilitates cleaning, disinfection and other operations on the drainage box and the backflushing assembly, the threaded connection between the connecting head and the backflushing pipe facilitates complete disinfection of the inside, prevents residual liquid from breeding bacteria, the setting of the cap and the treatment pipe prevents liquid in the storage box from leaking, and ensures the stability of the storage environment.

Description

Technical Field

[0001] This application relates to the field of drainage device technology, specifically a pleural effusion puncture drainage device that prevents blockage. Background Technology

[0002] In the medical field, pleural effusion is a common condition, and timely and effective drainage of pleural effusion is crucial for the treatment and recovery of patients.

[0003] A prior patent (publication number: CN220757746U) discloses a thoracic drainage device. This device includes a frame with two receiving slots containing fluid reservoirs. Each reservoir has a graduated window. A fluid extraction tube is positioned above the frame, and an infusion regulator is attached to the tube. A puncture needle is connected to the inlet end of the extraction tube. The frame also includes an adjusting cap, which is rotatably connected near the upper port. This device uses the receiving slots on both sides of the frame to hold the fluid reservoirs. Corresponding flexible tubes are inserted into the inlets of the reservoirs, and pleural effusion is collected in one reservoir using the extraction tube. The graduated window allows for easy observation of the fluid level. When a large amount of fluid is extracted, the adjusting cap is rotated using a handle to adjust the interface position, aligning it with the other reservoir, allowing continued collection of fluid using the other reservoir.

[0004] However, during the drainage process of the above-mentioned drainage devices and other existing drainage devices, the pleural effusion may contain substances such as blood clots and fibrin. These substances are prone to forming blockages inside the drainage tube or drainage device. Once a blockage occurs, it will not only affect the normal drainage of pleural effusion, leading to poor drainage, but may also cause discomfort to the patient. In severe cases, it may even delay treatment and cause further damage to the patient's health.

[0005] Currently, the common method for addressing blockages during drainage is to use a syringe to draw an appropriate amount of saline (usually 5-10ml), connect it to the distal end of the drainage tube, and simultaneously inject and aspirate to create a pulsating flushing effect. This is to avoid excessive force that could cause a sudden increase in intrathoracic pressure. However, this method has significant drawbacks. When using a syringe, it is difficult to precisely control the pressure applied and to uniformly control the fluid flow rate. This results in unstable flushing effects, and sometimes it may fail to effectively remove the blockage. In some cases, improper operation may even pose additional risks to the patient. Utility Model Content

[0006] To address the shortcomings of existing technologies, this application provides a pleural effusion puncture and drainage device that prevents blockage and has advantages such as automatic flushing, thus solving the problems mentioned in the background art.

[0007] To achieve the above objectives, this application provides the following technical solution: a pleural effusion puncture and drainage device for preventing blockage, comprising a drainage box, a drainage tube and a backflushing assembly, wherein a sealing cap is threadedly connected to the top of the drainage box, and a guide tube is fixedly connected to the sealing cap along the height direction of the drainage box, the bottom end of the guide tube extends to the bottom of the inside of the drainage box, and the top end of the guide tube extends to the top of the sealing cap.

[0008] The bottom end of the drainage tube is fixedly connected to a connecting tube, which is interference-fitted to the top end of the drainage tube. A puncture needle is installed at the top end of the drainage tube. Mounting rings are fixedly connected to both the outer surface of the bottom end and the outer surface of the top end of the drainage tube, and a spiral reinforcing wire is installed between the two mounting rings.

[0009] The outer surface of the guide tube is fixedly connected to a backflow tube that is horizontally arranged along its radial direction.

[0010] The backflush assembly includes a suction tube, one end of which is a closed section, and the other end of which is threaded to a connector. The connector is fixedly connected to a coaxially arranged connecting pipe, which is interference-fitted with the backflush tube.

[0011] Furthermore, the backflushing assembly also includes two storage boxes, with a mounting plate between the two storage boxes. The two storage boxes are fixedly connected to the two sides of the mounting plate, respectively. The two storage boxes are respectively provided with a brine chamber and a wastewater chamber. The upper surfaces of the brine chamber and the wastewater chamber are fixedly connected to a treatment pipe, and the top end of the treatment pipe is threaded with a cap.

[0012] The above method allows for the storage of saline solution and the storage of used saline solution to prevent wastewater overflow and pollution. For blood clot blockage, the saline solution can be replaced with a solution containing special components such as thrombolytic enzymes to enhance the dissolving ability of blood clots.

[0013] Furthermore, a flushing pump and an extraction pump are respectively provided on both sides of the storage box. The input end of the flushing pump is fixedly connected to the brine chamber, and the output end of the flushing pump is fixedly connected to the suction pipe. The input end of the extraction pump is fixedly connected to the wastewater chamber, and the output end of the extraction pump is fixedly connected to the suction pipe.

[0014] Through the above scheme, the extraction pump and flushing pump are connected to an external control system, which can accurately control the flow rate of flushing and extraction liquids, achieve stable backflushing operation, and improve the effect of unblocking blockages.

[0015] Furthermore, a set of circumferentially arranged rectangular slots are formed on the outer surface of the guide tube.

[0016] The above solution prevents sediment from completely blocking the bottom of the drainage tube when there is sediment at the bottom of the drainage box, ensuring that the liquid can still enter the drainage tube through the rectangular groove. The rectangular groove can also increase the contact area between the drainage tube and the liquid in the drainage box to a certain extent, promoting liquid flow.

[0017] Furthermore, the drainage box is made of transparent material.

[0018] The above method provides liquid level markings on the surface of the drainage box.

[0019] Furthermore, a first valve is installed in the middle of the drainage tube, and a second valve is installed in the middle of the backflushing tube.

[0020] With the above scheme, during normal drainage, the first valve is in the open state and the second valve is in the closed state, ensuring that pleural effusion can smoothly pass through the drainage tube into the drainage box. When there is a blockage, by closing the first valve and opening the second valve, flushing liquid can be injected into the drainage tube using the backflushing component to backflush and clear the blockage.

[0021] Furthermore, the storage box is bonded to the drainage box.

[0022] The above solution, by bonding the drainage box and storage box together and connecting the connecting pipe and backflushing pipe, facilitates the separation of the backflushing component, making it convenient to clean and disinfect the drainage box and backflushing component separately. At the same time, the threaded connection between the connector and the backflushing pipe facilitates thorough internal disinfection, preventing residual liquid from breeding bacteria. The cap and treatment pipe prevent liquid leakage from the storage box, ensuring a stable storage environment.

[0023] Furthermore, the pitch of the spiral reinforcing wire is 2-5 mm.

[0024] The above solution ensures that the spiral reinforcing wire provides sufficient support to the drainage tube, preventing deformation, while also giving the drainage tube a certain degree of flexibility, making it easier for medical staff to operate and adjust its position.

[0025] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0026] This anti-blockage pleural effusion puncture and drainage device, through the setting of a backflush component, enables backflush operation of the drainage tube. When the drainage tube becomes blocked, the flushing pump draws physiological saline from the saline chamber of the storage box and injects it into the drainage tube through the suction tube and backflush tube for flushing. At the same time, the extraction pump can pump the flushed wastewater back to the wastewater chamber, precisely controlling the flow rate of the flushing and extraction fluids to achieve a stable unblocking effect. It effectively solves the problem of poor drainage caused by blood clots, fibrin, and other substances in the pleural effusion blocking the drainage tube or the drainage device, ensuring normal drainage of pleural effusion, avoiding patient discomfort or delay in treatment due to poor drainage, and protecting the patient's health.

[0027] The drainage tube is fitted with a spiral reinforcing wire made of spring steel through a hot-rolling process. This ensures that the spiral reinforcing wire provides sufficient support strength to the drainage tube, preventing excessive deformation during bending that could narrow the flow channel and flattening of the drainage tube surface under pressure that could affect fluid flow. At the same time, it also gives the drainage tube a certain degree of flexibility, making it easier for medical staff to operate and adjust the position of the drainage tube, thus improving the performance and applicability of the drainage tube.

[0028] A set of rectangular slots arranged in a circle are opened on the outer surface of the guide tube. When there is sediment at the bottom of the drainage box, it can prevent the sediment from completely blocking the bottom of the guide tube, ensuring that the liquid can still enter the guide tube through the rectangular slots. This enables the liquid to enter the drainage box normally under special circumstances, maintaining the continuity of the drainage process. Attached Figure Description

[0029] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this application. Figure 1 ;

[0030] Figure 2 This is a three-dimensional schematic diagram of the overall structure of this application. Figure 2 ;

[0031] Figure 3 This is a cross-sectional view of the recoil assembly structure in this application;

[0032] Figure 4 This is a cross-sectional view of the drainage box structure in this application;

[0033] Figure 5 This is a cross-sectional view of the suction tube structure of this application.

[0034] In the picture:

[0035] 1. Drainage box; 101. Sealing cap; 102. Drainage tube; 103. Rectangular groove; 104. Liquid level scale;

[0036] 2. Drainage tube; 201. Connecting tube; 202. Puncture needle; 203. Mounting ring; 204. Spiral reinforcing wire;

[0037] 3. Backflushing assembly; 301. Suction pipe; 302. Connector; 303. Connecting pipe; 304. Storage box; 305. Mounting plate; 306. Brine chamber; 307. Wastewater chamber; 308. Treatment pipe; 309. Cap; 310. Flushing pump; 311. Extraction pump;

[0038] 4. Backflush pipe; 5. First valve; 6. Second valve. Detailed Implementation

[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0040] Please see Figures 1-5 The anti-blockage pleural effusion puncture and drainage device in this embodiment includes a drainage box 1, a drainage tube 2, and a backflushing assembly 3. The top of the drainage box 1 is threadedly connected to a sealing cap 101. The sealing cap 101 is fixedly connected to a guide tube 102 along the height direction of the drainage box 1. The bottom end of the guide tube 102 extends to the bottom of the drainage box 1, and the top end of the guide tube 102 extends to the top of the sealing cap 101. The drainage box 1 is made of transparent material, specifically medical polycarbonate. The surface of the drainage box 1 is provided with a liquid level scale line 104, so that medical staff can intuitively and clearly observe the liquid level of the pleural effusion in the drainage box 1, accurately grasp the drainage situation, and take appropriate measures in a timely manner.

[0041] The bottom end of the drainage tube 2 is fixedly connected to a connecting tube 201, which is interference-fitted to the top end of the guide tube 102. A puncture needle 202 is installed at the top end of the drainage tube 2. Mounting rings 203 are fixedly connected to the outer surfaces of both the bottom and top ends of the drainage tube 2. A spiral reinforcing wire 204 is installed between the two mounting rings 203. The spiral reinforcing wire 204 is made of spring steel and formed by hot rolling. This design prevents excessive deformation of the drainage tube 2 when it is bent, which could cause narrowing of the flow channel or flattening of the surface of the drainage tube 2 when it is under pressure, thus affecting the flow of liquid. The pitch of the spiral reinforcing wire 204 is 2-5mm, and the diameter of the threaded reinforcing wire is 0.5-1.5mm. This design ensures that the spiral reinforcing wire 204 has sufficient support strength for the drainage tube 2 to prevent deformation, while also giving the drainage tube 2 a certain degree of flexibility, making it convenient for medical staff to operate and adjust the position of the drainage tube 2.

[0042] The outer surface of the guide tube 102 is fixedly connected to a backflush tube 4 arranged horizontally along its radial direction. A set of rectangular slots 103 arranged in a circle are opened on the outer surface of the guide tube 102. When there is sediment at the bottom of the drainage box 1, it can prevent the sediment from completely blocking the bottom of the guide tube 102, ensuring that the liquid can still enter the guide tube 102 through the rectangular slots 103. The rectangular slots 103 can also increase the contact area between the guide tube 102 and the liquid in the drainage box 1 to a certain extent, promoting the flow of liquid.

[0043] The backflushing assembly 3 also includes two storage boxes 304, with a mounting plate 305 positioned between them. The two storage boxes 304 are fixedly connected to the two sides of the mounting plate 305, respectively. Inside each storage box is a saline chamber 306 and a wastewater chamber 307. A treatment pipe 308 is fixedly connected to the upper surface of both the saline chamber 306 and the wastewater chamber 307. A cap 309 is threaded onto the top of each treatment pipe 308, allowing for the storage of physiological saline and the storage of used saline solution to prevent wastewater overflow and contamination. For blood clot blockage, the saline solution can be replaced with a solution containing... The solution contains special components such as thrombolytic enzymes to enhance the dissolution ability of blood clots. The storage box 304 is equipped with a flushing pump 310 and an extraction pump 311 on both sides. The input end of the flushing pump 310 is fixedly connected to the saline chamber 306, and the output end of the flushing pump 310 is fixedly connected to the suction pipe 301. The input end of the extraction pump 311 is fixedly connected to the wastewater chamber 307, and the output end of the extraction pump 311 is fixedly connected to the suction pipe 301. The extraction pump 311 and the flushing pump 310 are connected to an external control system, which can precisely control the flow rate of flushing and extraction liquids, realize stable backflushing operation, and improve the effect of unblocking blockages.

[0044] A first valve 5 is installed in the middle of the drainage tube 2, and a second valve 6 is installed in the middle of the backflushing tube 4. During normal drainage, the first valve 5 is open and the second valve 6 is closed, ensuring that pleural effusion can smoothly pass through the drainage tube 2 into the drainage box 1. When blocked, by closing the first valve 5 and opening the second valve 6, flushing liquid can be injected into the drainage tube 2 using the backflushing assembly 3 to backflush and clear the blockage. The storage box 304 is bonded to the drainage box 1. The bonding between the drainage box 1 and the storage box 304, and the insertion of the connecting pipe 303 into the backflushing tube 4, facilitates the separation of the backflushing assembly 3, making it convenient to clean and disinfect the drainage box 1 and the backflushing assembly 3 separately. At the same time, the threaded connection between the connector 302 and the backflushing tube 4 facilitates thorough internal disinfection and prevents residual liquid from breeding bacteria. The cap 309 and the treatment tube 308 prevent liquid leakage from the storage box 304 and ensure a stable storage environment.

[0045] The working principle of the above embodiment is as follows: The sealing cap 101 at the top of the drainage box 1 is tightly threaded to ensure good sealing. The first valve 5 in the middle of the drainage tube 2 is checked to be in the open state, and the second valve 6 in the middle of the backflush tube 4 is in the closed state to ensure unobstructed drainage. At this time, the storage box 304 in the backflush assembly 3 is bonded to the drainage box 1. The connecting pipe 303 at one end of the suction tube 301 is interference-fitted with the backflush tube 4, which is radially horizontally arranged on the outer surface of the guide tube 102. The flushing pump 310 and the extraction pump 311 are connected to the external control system. The saline chamber 306 inside the storage box 304 contains an appropriate amount of physiological saline. Medical personnel use the puncture needle 202 at the top of the drainage tube 2 to puncture the patient's pleural cavity. Under the pressure within the pleural cavity, the pleural effusion flows along the drainage tube 2... The drainage tube 2 is circumferentially connected to two mounting rings 203 on its bottom and top outer surfaces. A spiral reinforcing wire 204 is installed between the two mounting rings 203. This spiral reinforcing wire 204 ensures sufficient support for the drainage tube 2, preventing excessive deformation during bending that could narrow the flow channel and flattening of the surface under pressure, thus affecting fluid flow. It also provides flexibility for easy manipulation and adjustment by medical staff. Pleural effusion flows through the drainage tube 2 into the guide tube 102. The bottom of the guide tube 102 extends to the bottom of the drainage box 1, allowing the effusion to flow into the box. A set of circumferentially arranged rectangular slots 103 are provided on the outer surface of the guide tube 102. When there is sediment at the bottom of the drainage box 1, it prevents the sediment from completely blocking the bottom of the drainage tube 102, ensuring that the liquid can still enter the drainage tube 102 through the rectangular slot 103. At the same time, the rectangular slot 103 increases the contact area between the drainage tube 102 and the liquid in the drainage box 1 to a certain extent, promoting liquid flow. The drainage box 1 is made of transparent material, and its surface is provided with liquid level scale lines 104, allowing medical staff to directly and clearly observe the height of the pleural effusion in the drainage box 1. When medical staff observe poor drainage and suspect that the drainage tube 2 is blocked, normal drainage operation is stopped. At this time, the connection between the drainage tube 2 and the patient's chest cavity remains unchanged, and the first valve 5 in the middle of the drainage tube 2 is closed to cut off the normal drainage channel of the pleural effusion and prevent backflow during the process. When the fluid in the cavity flows back, the second valve 6 in the middle of the backflush pipe 4 is opened to clear the backflush channel. The input end of the flushing pump 310 is fixedly connected to the saline chamber 306 in the storage box 304, and the output end is fixedly connected to the suction pipe 301. The flushing pump 310 draws physiological saline from the saline chamber 306 and injects it into the drainage pipe 2. Subsequently, the external control system controls the extraction pump 311 to start. The input end of the extraction pump 311 is fixedly connected to the wastewater chamber 307 in the storage box 304, and the output end is fixedly connected to the suction pipe 301. The extraction pump 311 draws the flushed wastewater back to the wastewater chamber 307 through the backflush pipe 4, the connecting pipe 303, the connector 302, and the suction pipe 301, forming a pulse flushing action of inlet and outlet, which improves the effect of clearing blockages. After a period of backflushing operation...Medical staff observe the drainage. If drainage returns to normal, it indicates the blockage has been cleared. At this point, the second valve 6 in the middle of the backflow tube 4 is closed to cut off the backflow channel. The first valve 5 in the middle of the drainage tube 2 is opened to restore normal drainage of the pleural effusion, and the patient continues pleural effusion drainage treatment.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0047] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pleural effusion puncture and drainage device for preventing blockage, comprising a drainage box (1), a drainage tube (2), and a backflushing assembly (3), characterized in that: The top of the drainage box (1) is threaded with a sealing cap (101), and the sealing cap (101) is fixedly connected to a guide tube (102) along the height direction of the drainage box (1). The bottom end of the guide tube (102) extends to the bottom of the inside of the drainage box (1), and the top end of the guide tube (102) extends to the top of the sealing cap (101). The bottom end of the drainage tube (2) is fixedly connected to a connecting tube (201), the connecting tube (201) is interference-fitted to the top end of the guide tube (102), a puncture needle (202) is installed at the top end of the drainage tube (2), and mounting rings (203) are fixedly connected to the outer surface of the bottom end and the outer surface of the top end of the drainage tube (2), and a spiral reinforcing wire (204) is installed between the two mounting rings (203). The outer surface of the guide tube (102) is fixedly connected to a backflow tube (4) arranged horizontally along its radial direction. The recoil assembly (3) includes a suction tube (301), one end of which is a closed section, and the other end of which is threadedly connected to a connector (302). The connector (302) is fixedly connected to a coaxially arranged connecting pipe (303), and the connecting pipe (303) is interference-fitted with the recoil tube (4).

2. The anti-clogging pleural effusion puncture and drainage device according to claim 1, characterized in that: The backflushing assembly (3) also includes two storage boxes (304), with an installation plate (305) between the two storage boxes (304). The two storage boxes (304) are fixedly connected to the two sides of the installation plate (305) respectively. The two storage boxes are respectively provided with a brine chamber (306) and a wastewater chamber (307). The upper surfaces of the brine chamber (306) and the wastewater chamber (307) are fixedly connected with a treatment pipe (308). The top end of the treatment pipe (308) is threaded with a cap (309).

3. The anti-clogging pleural effusion puncture and drainage device according to claim 2, characterized in that: The storage box (304) is equipped with a flushing pump (310) and an extraction pump (311) on its two sides respectively. The input end of the flushing pump (310) is fixedly connected to the brine chamber (306), and the output end of the flushing pump (310) is fixedly connected to the suction pipe (301). The input end of the extraction pump (311) is fixedly connected to the wastewater chamber (307), and the output end of the extraction pump (311) is fixedly connected to the suction pipe (301).

4. The anti-clogging pleural effusion puncture and drainage device according to claim 1, characterized in that: The outer surface of the guide tube (102) is provided with a set of rectangular slots (103) arranged in a circle.

5. The anti-clogging pleural effusion puncture and drainage device according to claim 1, characterized in that: The drainage box (1) is made of transparent material, and the surface of the drainage box (1) is provided with liquid level scale lines (104).

6. The anti-clogging pleural effusion puncture and drainage device according to claim 1, characterized in that: A first valve (5) is installed in the middle of the drainage pipe (2), and a second valve (6) is installed in the middle of the backflushing pipe (4).

7. The anti-clogging pleural effusion puncture and drainage device according to claim 2, characterized in that: The storage box (304) is bonded to the drainage box (1).

8. The anti-clogging pleural effusion puncture and drainage device according to claim 1, characterized in that: The pitch of the spiral reinforcing wire (204) is 2-5 mm.

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