Negative pressure drainage device

Abstract

The utility model relates to a negative pressure drainage device, and belongs to the technical field of medical instruments. Comprising a drainage bag (1), a drainage tube (2), a negative pressure tube (3) and a drainage tube (4), the drainage tube (2) and the negative pressure tube (3) are respectively communicated with an inner cavity of the drainage bag (1), and the drainage tube (4) is arranged at the bottom of the drainage bag (1) and communicated with the drainage bag (1). A drainage tube connector (5) is arranged on the upper portion of the drainage bag (1) and connected with the drainage tube (2), the filtering device is communicated with the drainage tube (2) and penetrates through the drainage tube connector (5) to be arranged in the drainage bag (1) in a sinking mode, and the drainage tube (2) is detachably connected with the drainage tube connector (5). According to the utility model, real-time separation of human tissues and body fluid in the operation body fluid drainage process can be realized.

Description

Technical Field

[0001] The utility model relates to a negative pressure drainage device, belonging to the technical field of medical devices. Background Art

[0002] The negative pressure drainage device is mainly used for collecting body fluids during medical operations. The existing negative pressure drainage device mainly includes a drainage bag, a drainage tube and a negative pressure tube. The top of the drainage bag is respectively connected to the drainage tube and the negative pressure tube. The drainage tube is connected to the part of the patient that needs drainage, and the negative pressure tube is connected to the negative pressure terminal. The liquid in the patient's body is guided out by using the vacuum working principle, so as to achieve the surgical purpose. The existing negative pressure drainage device does not have a separation function for the diagnostically valuable human tissues drained out, resulting in the loss of human tissues. For example, during the tissue separation and shaving of the hysteroscope in gynecology and urology, the diagnostically valuable human tissues are easily directly introduced into the drainage bag along with the liquid. After the operation, it takes a lot of time to find useful tissues from the body fluids in the drainage bag, and it is also easy to cause tissue loss.

[0003] Chinese Patent CN220632656U discloses a negative pressure drainage device. By adding a liquid discharge tube and an exhaust tube connected to the liquid storage container, the gas and liquid are respectively discharged, ensuring the negative pressure in the liquid storage container and facilitating the continuous introduction of the air leakage and liquid leakage in the patient's abdominal cavity. It does not solve the problem that it is difficult to separate human tissues and body fluids during the operation. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a negative pressure drainage device, which realizes the convenient separation of human tissues and body fluids during the drainage process by adding a filtering device in the drainage bag and connecting the filtering device to the drainage tube.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows:

[0006] A negative pressure drainage device includes a drainage bag, a drainage tube, a negative pressure tube and a liquid discharge tube. The drainage tube and the negative pressure tube are respectively communicated with the inner cavity of the drainage bag. The liquid discharge tube is arranged at the bottom of the drainage bag and communicated with the drainage bag. The improvement is that: it also includes a filtering device; a drainage tube joint is arranged at the upper part of the drainage bag and connected to the drainage tube. The filtering device is communicated with the drainage tube and is sunk into the drainage bag through the drainage tube joint. The drainage tube is detachably connected to the drainage tube joint.

[0007] In the above-mentioned negative pressure drainage device, the filtering device includes a filter port part and a filter net part. The filter net part is located inside the drainage bag, and the filter port part is connected to the drainage tube joint and communicated with the drainage tube.

[0008] In the above-mentioned negative pressure drainage device, the filtering device is preferably a filter net bag. The filter net bag is located inside the drainage bag, and the filter port part of the filter net bag is fixedly connected to the drainage tube joint.

[0009] For the above-mentioned negative pressure drainage device, the drainage tube joint is a threaded tube, and the filter port of the filter mesh bag passes through the drainage tube joint and is laid along the circumferential direction of the drainage tube joint; the lower port of the drainage tube is threadedly connected to the drainage tube joint, and after connection, the filter port of the filter mesh bag is located between the drainage tube and the drainage tube joint, and the filter port of the filter mesh bag is pressed tightly through the threaded connection between the drainage tube and the drainage tube joint.

[0010] For the above-mentioned negative pressure drainage device, a drain screw joint is provided at the bottom of the drainage bag, and the drain pipe is threadedly connected to the drain screw joint.

[0011] For the above-mentioned negative pressure drainage device, the diameter of the mesh holes of the filter mesh bag is smaller than the inner diameter of the drainage tube.

[0012] The usage method of the present utility model is as follows: During the operation, the upper end of the drainage tube is communicated with the drainage part of the patient, and the upper end of the negative pressure tube is connected to the negative pressure pipeline. The body fluid drained from the patient's body flows into the drainage bag along the drainage tube; due to the existence of the filter mesh bag, during the process of the body fluid flowing into the drainage bag through the drainage tube, the massive or granular human tissues are retained in the filter mesh bag, realizing the complete separation of the tissues and the body fluid; after the body fluid drainage is completed, since the drainage tube and the drainage tube joint are detachable, after the drainage tube is disassembled, the filter mesh bag is taken out from the drainage tube joint, and the human tissues therein are further analyzed and diagnosed by laboratory tests, thus avoiding the problem of manually screening tissues from the body fluid, which is time-consuming, laborious and prone to tissue loss. At the same time, during the drainage process, when the body fluid exceeds the capacity of the drainage bag, the drain pipe at the bottom of the drainage bag can be opened in real time to drain the excess body fluid, ensuring the smooth progress of the operation.

[0013] The beneficial effects of the present utility model are as follows:

[0014] The filtering device of the present utility model can directly retain the tissues to be tested during the operation in the filter mesh bag, realizing the real-time separation of human tissues and body fluid during the body fluid drainage process; since the diameter of the mesh holes of the filter mesh bag is smaller than the diameter of the drainage tube, the filter mesh bag containing the tissues to be tested can be easily taken out from the drainage tube joint. The present utility model can effectively avoid the problem of manually screening tissues from the body fluid, which is time-consuming, laborious and prone to tissue loss, facilitate the timely separation and testing of the tissues to be tested, and improve the diagnosis efficiency of patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of the first embodiment of the present utility model;

[0016] Figure 2 It is a schematic structural diagram of the second embodiment of the present utility model;

[0017] The labels in the figure are: drainage bag 1, drainage tube 2, negative pressure tube 3, liquid discharge tube 4, drainage tube joint 5, filter orifice part 6, filter net part 7, liquid discharge screw joint 8, lower port of the drainage tube 9, liquid discharge valve 10. Detailed implementation mode

[0018] The following further elaborates on the present utility model through specific embodiments.

[0019] Figure 1 It shows that a negative pressure drainage device of the present utility model includes a drainage bag 1, a drainage tube 2, a negative pressure tube 3, a liquid discharge tube 4, a drainage tube joint 5, a filter orifice part 6 of the filtering device, a filter net part 7 of the filtering device, and a liquid discharge screw joint 8; the lower end of the negative pressure tube 3 is connected to the drainage bag 1, and the upper end is connected to the negative pressure pipeline; the drainage tube joint 5 is arranged at the upper part of the drainage bag 1 and communicates with the drainage bag 1; in this embodiment, the filtering device is a filter mesh bag, the drainage tube joint 5 is an external thread tube, and the lower port of the drainage tube 2 is provided with an internal thread; the filter net part 7 of the filter mesh bag is located inside the drainage bag 1, and the filter orifice part 6 passes through the drainage tube joint 5 and is laid along the outer circumference of the drainage tube joint 5. After laying, the lower port of the drainage tube 2 is threadedly connected to the drainage tube joint 5. After connection, the filter orifice part 6 of the filter mesh bag is located between the drainage tube 2 and the drainage tube joint 5. By the threaded connection between the drainage tube 2 and the drainage tube joint 5, the filter orifice part 6 of the filter mesh bag is pressed tightly to realize the connection between the filter mesh bag and the drainage tube 2; the diameter of the drainage tube 2 matches the diameter of the drainage tube joint 5; the mesh diameter of the filter mesh bag is smaller than the inner diameter of the drainage tube 2 to ensure that the human tissues flowing out of the drainage tube 2 can be retained in the filter mesh bag; Figure 1 It shows that a liquid discharge screw joint 8 is provided at the bottom of the drainage bag 1, and the liquid discharge tube 4 is threadedly connected to the liquid discharge screw joint 8.

[0020] Figure 2 This is a schematic diagram of the second embodiment of the present utility model. In this embodiment, the diameter of the drainage tube joint 5 is larger than the diameter of the drainage tube 2, and the purpose is to facilitate the removal of the filter mesh bag from the drainage tube joint 5; the lower end of the drainage tube 2 is fixedly provided with a lower port 9 of the drainage tube, and its size matches the drainage tube joint 5 and is provided with an internal thread; the lower port 9 of the drainage tube is also connected to the drainage tube 2; a liquid discharge valve 10 is installed on the liquid discharge tube 4. When it is necessary to discharge body fluids, the liquid discharge valve 10 can be opened for real-time discharge; when it is not necessary to discharge body fluids, the liquid discharge valve 10 is in a closed state. Except for the above improvements, the other structures of this embodiment are the same as those of Embodiment 1.

[0021] The usage method of the utility model is as follows: During the operation, the upper end of the drainage tube 2 is connected to the drainage part of the patient, and the upper end of the negative pressure tube 3 is connected to the negative pressure pipeline. The body fluid drained from the patient's body flows into the drainage bag 1 along the drainage tube 2; due to the existence of the filter mesh bag, during the process of the body fluid flowing into the drainage bag 1 through the drainage tube 2, the massive or granular human tissues are retained in the filter mesh part 7 of the filter mesh bag, realizing the complete separation of the tissues and the body fluid; after the body fluid drainage is completed, since the drainage tube 2 and the drainage tube joint 5 are connected by threads, after the drainage tube 2 is disassembled, the filter mesh part 7 of the filter mesh bag is taken out from the drainage tube joint 5, and the human tissues therein are further analyzed by laboratory tests, thus avoiding the problem that it is time-consuming and laborious for manual screening of tissues from the body fluid and is prone to tissue loss. At the same time, during the drainage process, when the body fluid exceeds the capacity of the drainage bag 1, the drain pipe 4 at the bottom of the drainage bag 1 can be opened in real time to drain the excess body fluid, ensuring the smooth progress of the operation.

Claims

1. A negative pressure drainage device, comprising a drainage bag (1), a drainage tube (2), a negative pressure tube (3) and a liquid discharge tube (4). The drainage tube (2) and the negative pressure tube (3) are respectively communicated with the inner cavity of the drainage bag (1). The liquid discharge tube (4) is arranged at the bottom of the drainage bag (1) and is communicated with the drainage bag (1), and is characterized in that: It further includes a filtering device; a drainage tube connector (5) is provided at the upper part of the drainage bag (1) and is connected to the drainage tube (2). The filtering device is communicated with the drainage tube (2) and is sunk inside the drainage bag (1) through the drainage tube connector (5). The drainage tube (2) and the drainage tube connector (5) are detachably connected.

2. The negative pressure drainage device according to claim 1, wherein: The filtering device includes a filter orifice part (6) and a filter net part (7). The filter net part (7) is located inside the drainage bag (1), and the filter orifice part (6) is connected to the drainage tube connector (5) and is communicated with the drainage tube (2).

3. The negative pressure drainage device according to claim 2, characterized in that: The filtering device is a filter net bag. The filter net part (7) of the filter net bag is located inside the drainage bag (1), and the filter orifice part (6) of the filter net bag is fixedly connected to the drainage tube connector (5).

4. The negative pressure drainage device according to claim 3, wherein: The drainage tube connector (5) is a threaded tube. The filter orifice part (6) of the filter net bag passes through the drainage tube connector (5) and is laid along the outer circumference of the drainage tube connector (5). The lower port of the drainage tube (2) is threadedly connected to the drainage tube connector (5). After connection, the filter orifice part (6) of the filter net bag is located between the drainage tube (2) and the drainage tube connector (5), and the filter orifice part (6) of the filter net bag is pressed tightly through the threaded connection between the drainage tube (2) and the drainage tube connector (5).

5. The negative pressure drainage device according to claim 1, wherein: A drain screw joint (8) is provided at the bottom of the drainage bag (1), and the drain tube (4) is threadedly connected to the drain screw joint (8).

6. A negative pressure drainage device according to claim 3 or 4, characterized in that: The diameter of the mesh holes of the filter net bag is smaller than the inner diameter of the drainage tube (2).

7. The negative pressure drainage device according to claim 5, wherein: A drain valve (10) is installed on the drain tube (4).

Images