A negative pressure collection device

Abstract

The utility model discloses a kind of negative pressure collecting devices, including collection container and upper cover, the upper end of the collection container is open structure, the upper cover is detachably connected with the upper end of collection container, liquid inlet hole and suction hole are provided on the upper cover, liquid inlet pipe and suction pipe are respectively provided in the liquid inlet hole and suction hole, the suction pipe and liquid inlet pipe are inserted into collection container, suction pipe extends to the bottom surface of collection container downwards, and suction pipe at least pipe body is made of filter screen.In use the upper end of the suction pipe is connected with negative pressure suction device, and the liquid inlet pipe connected on the upper cover is inhaled into body fluid, and is discharged from the upper end of suction pipe.Body fluid flows in collection container, and the pipe body of suction pipe forms filter structure to filter and separate the tissue in body fluid.The pipe body of suction pipe is inserted into the bottom of collection container, and body fluid can be fully attracted and filtered, the area of filter screen is increased by the lengthening of the pipe body of suction pipe, the efficiency of filtration can be improved, and filter screen is prevented from being blocked.

Description

Technical Field

[0001] This utility model relates to the field of medical devices and equipment, and in particular to a negative pressure collection device. Background Technology

[0002] In many medical procedures, intraoperative fluids are collected and filtered. Examples include removing blood or fluid accumulation during surgery, holding the ends of ruptured blood vessels, suctioning sputum in emergency situations, performing induced abortions in gynecology, recovering kidney stones after pulverization, and collecting prostate tissue during prostate pulverization. Collection containers are widely used medical consumables, primarily for collecting blood or fluid accumulation, and are generally used in conjunction with negative pressure suction equipment.

[0003] Existing collection devices typically have a negative pressure input conduit for suction and a negative pressure output conduit for discharging liquid, and a filter screen is installed at the inlet of the negative pressure output conduit to prevent the fragmented tissue from being sucked out.

[0004] However, placing a filter at the inlet of the negative pressure output catheter can easily clog the filter when a large amount of tissue is simultaneously drawn to the inlet, hindering fluid drainage and affecting surgical efficiency. Furthermore, the low efficiency of negative pressure suction means it cannot attract fluid from the bottom of the collection device, preventing complete drainage and posing a safety hazard. Utility Model Content

[0005] In order to overcome at least one of the technical problems of the prior art, the present invention provides a negative pressure collection device that increases the filtration area and can improve the filtration efficiency.

[0006] A negative pressure collection device is provided, including a collection container and a top cover. The upper end of the collection container is an open structure. The top cover is detachably connected to the upper end of the collection container. The top cover is provided with a liquid inlet hole and a liquid suction hole. A liquid inlet tube and a suction tube are respectively provided in the liquid inlet hole and the liquid suction hole. The suction tube and the liquid inlet tube are inserted into the collection container. The suction tube extends downward to the bottom surface of the collection container. At least the tube body of the suction tube is composed of a filter screen.

[0007] The aforementioned negative pressure collection device has at least the following beneficial effects: During use, the upper end of the suction tube is connected to the negative pressure suction device, and the inlet tube connected to the top cover draws in body fluid, which is then discharged from the upper end of the suction tube. The body fluid flows through the collection container, and the tube body forms a filter structure to filter and separate the tissue within the body fluid. The suction tube extends to the bottom of the collection container, allowing for thorough filtration of the body fluid. The extended suction tube increases the area of ​​the filter screen, improving filtration efficiency and preventing clogging.

[0008] In some embodiments of the aforementioned negative pressure collection device, a coarse filter screen is provided inside the collection container. This coarse filter screen is located between the inlet pipe and the suction pipe, and its mesh size is smaller than that of the filter screen in the suction pipe. The use of multiple filter screens allows for graded filtration of tissues of different volumes, improving filtration accuracy, preventing large tissues from clogging the filter screen, and increasing filtration efficiency.

[0009] In some embodiments of the aforementioned negative pressure collection device, both the inlet and suction ports are equipped with pagoda connectors, with the lower ends of the two pagoda connectors connected to the inlet pipe and the suction pipe, respectively. The pagoda connectors allow for quick connection and sealing with the pipeline, facilitating the connection and use of the negative pressure collection device.

[0010] In some embodiments of the aforementioned negative pressure collection device, the collection container is at least made of a transparent material. A transparent collection container allows for easy observation of the liquid level and the volume of filtered tissue, facilitating the user's assessment of the suction and filtration effectiveness.

[0011] In some embodiments of the aforementioned negative pressure collection device, a handle is provided on the body of the collection container. The handle can be gripped during use, making it convenient to hold or move the collection container.

[0012] In some embodiments of the aforementioned negative pressure collection device, the side of the top cover is provided with anti-slip texture. Since the collection container typically comes into contact with liquid during use, the anti-slip texture increases friction and improves anti-slip performance, making it easier to grip the collection container and the top cover, and facilitating the opening of the top cover.

[0013] In some embodiments of the aforementioned negative pressure collection device, the collection container has a lower opening at its lower end, and the lower cover of the collection container is detachably connected to the lower opening. The lower cover can be removed from the collection container, allowing for quick removal of the filtered tissue, facilitating the collection of tissue for inspection and testing.

[0014] In some embodiments of the negative pressure collection device described above, a scale is provided on the collection container. This allows for a direct visual observation of the tissue volume, facilitating data collection. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of this utility model, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort. Figure 1 This is a schematic diagram of the structure of the first embodiment of the present utility model; Figure 2This is a schematic diagram of the structure of the top cover in the first embodiment of this utility model; Figure 3 This is a cross-sectional view of the first embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the second embodiment of the present utility model. Detailed Implementation

[0016] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] Reference Figures 1 to 4 A negative pressure collection device includes a collection container 100 and a top cover 200. The upper end of the collection container 100 is open, and the top cover 200 is detachably connected to the upper end of the collection container 100. In this embodiment, the top cover 200 has an internal thread, and the upper end of the collection container 100 also has an external thread. The top cover 200 and the collection container 100 are connected by a threaded engagement and can be separated from each other. In other embodiments, the top cover 200 and the collection container 100 can also be detachably engaged by a snap-fit ​​structure or connected by a sealing element, allowing the top cover 200 and the collection container 100 to be separated under external force.

[0019] The upper cover 200 is provided with a liquid inlet hole and a liquid suction hole. A liquid inlet pipe 210 and a suction pipe 220 are respectively provided in the liquid inlet hole and the liquid suction hole. The suction pipe 220 and the liquid inlet pipe 210 are inserted into the collection container 100. The suction pipe 220 extends downward to the bottom surface of the collection container 100. The tube body of the suction pipe 220 is formed by a filter screen.

[0020] In use, the upper end of the suction tube 220 is connected to a negative pressure suction device, and the inlet tube 210 connected to the top cover 200 draws in the body fluid, which is then drawn out through the suction tube 220. The body fluid flows through the collection container 100, and the filter structure of the suction tube 220 forms a filtration structure to separate the tissue within the body fluid. The tube of the suction tube 220 extends into the bottom of the collection container 100, thus lengthening the suction tube 220. This not only allows for more thorough filtration of the body fluid but also increases the area of ​​the filter screen, improving filtration efficiency and preventing clogging.

[0021] Reference Appendix Figure 3 As shown in the schematic diagram, the collection container 100 is further equipped with a coarse filter 120. The coarse filter 120 is located between the inlet pipe 210 and the suction pipe 220. The mesh size of the coarse filter 120 is smaller than that of the filter in the suction pipe 220, and the filtration accuracy of the coarse filter 120 is lower than that of the tube filter in the suction pipe 220. Liquid flows in from the inlet pipe 210, passes through the inside of the collection container 100, and finally flows out from the suction pipe 220. The addition of the coarse filter 120 enables multi-layer filtration of tissues of different sizes. Large particles of tissue are intercepted by the coarse filter and then further filtered by the filter in the suction pipe 220. This improves the filtration accuracy, prevents large tissues from clogging the filter in the suction pipe 220, and increases filtration efficiency.

[0022] In this embodiment, the coarse filter 120 is vertically arranged inside the collection container 100. The top surface of the coarse filter 120 is flush with the upper surface of the collection container 100, and the bottom surface of the coarse filter 120 is flush with the lower surface of the collection container 100. The coarse filter 120 can isolate the liquid inlet pipe 210 and the suction pipe 220. The increased area of ​​the coarse filter 120 allows it to fully contact the flowing liquid, thereby improving the efficiency of coarse filtration.

[0023] Both the inlet and suction ports are equipped with pagoda connectors 300, the lower ends of which are connected to the inlet pipe 210 and the suction pipe 220, respectively. The pagoda connectors 300 allow for quick connection and sealing with the pipeline, facilitating the connection and use of the collection container 100 with the negative pressure generating device.

[0024] The collection container 100 is made of at least one transparent material. The transparency of the collection container 100 allows for easy observation of the liquid level and the volume of filtered tissue, facilitating the user's assessment of the suction and filtration effectiveness. Furthermore, the collection container 100 is equipped with a scale. This allows for a direct visual assessment of the tissue volume and the size of the filtered tissue, facilitating data collection and surgical evaluation.

[0025] According to the embodiment shown in the figure, the collection container 100 is also provided with a handle 110 on its body. The handle 110 is located at the upper end of the collection container 100 and is arc-shaped. Holding the handle 110 when using the collection device facilitates gripping or moving the collection container 100. The arc-shaped structure of the handle 110 conforms to the hand, allowing fingers to pass through for gripping. The side of the top cover 200 is provided with anti-slip texture 230. Since the collection container 100 usually comes into contact with liquid during use, the anti-slip texture 230 increases friction and improves anti-slip performance, making it easier to grip the collection container 100 and the top cover 200, and facilitating the opening of the top cover 200.

[0026] Reference Figure 4 The second embodiment is identical to the first embodiment in other aspects; the following description focuses only on the different structures. In the second embodiment, the collection container 100 has a lower opening at its lower end, and the lower cover 400 of the collection container 100 is detachably connected to this lower opening. Specifically, the lower cover 400 is threaded to the lower end of the collection container 100, and can detachably seal or open the lower opening of the collection container 100. When the lower cover 400 is removed from the collection container 100, the filtered tissue can be quickly extracted, facilitating tissue collection for inspection and testing.

[0027] The above is a detailed description of the preferred embodiments of the present utility model. The described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. Other embodiments that can be obtained are all within the protection scope of the present utility model.

Claims

1. A negative pressure collection device, characterized in that: include A collection container (100) having an open structure at its upper end; The top cover (200) is detachably connected to the upper end of the collection container (100). The top cover (200) is provided with a liquid inlet hole and a liquid suction hole. The liquid inlet hole and the liquid suction hole are respectively provided with a liquid inlet tube (210) and a suction tube (220). The suction tube (220) and the liquid inlet tube (210) are inserted into the collection container (100). The suction tube (220) extends downward to the bottom surface of the collection container (100). The suction tube (220) is at least composed of a filter screen. The collection container (100) is provided with a coarse filter screen (120). The coarse filter screen (120) is located between the liquid inlet tube (210) and the suction tube (220). The mesh count of the coarse filter screen (120) is smaller than the mesh count of the filter screen of the suction tube (220).

2. The negative pressure collection device according to claim 1, characterized in that: Both the inlet and the suction port are equipped with pagoda connectors (300), and the lower ends of the two pagoda connectors (300) are connected to the inlet pipe (210) and the suction pipe (220) respectively.

3. The negative pressure collection device according to claim 1, characterized in that: The collection container (100) is at least made of transparent material.

4. The negative pressure collection device according to claim 1, characterized in that: The collection container (100) is provided with a handle (110) on its body.

5. The negative pressure collection device according to claim 1, characterized in that: The side of the top cover (200) is provided with anti-slip texture (230).

6. The negative pressure collection device according to claim 1, characterized in that: The collection container (100) has a lower opening at its lower end, and the lower cover (400) of the collection container (100) is detachably connected to the lower opening of the collection container (100).

7. The negative pressure collection device according to claim 1, characterized in that: The collection container (100) is equipped with a scale.

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