Strong negative pressure suction equipment effusion box

Abstract

This utility model discloses a liquid collection box for a strong negative pressure suction device, including a box body with a liquid collection cavity, an inlet and an outlet on the box body, and a box body consisting of a sealed lid and a box compartment. A partition inside the box compartment divides the liquid collection cavity into an air inlet chamber and an air outlet chamber, and a connecting port is provided at the bottom of the partition. Through structural constraints, the airflow follows a fixed path: after entering through the inlet, it first flows downward, passes through the connecting port, and then flows upward and is discharged through the outlet. This utility model's liquid collection box for suction devices utilizes gravity and inertia to cause the liquid in the airflow to settle and be retained in the low-lying area within the box body, effectively preventing liquid from entering the filter element of subsequent negative pressure equipment. It has a simple structure, low cost, can effectively extend the service life of the filter element, and is easy to clean and maintain, making it suitable for use in various medical negative pressure suction scenarios.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a liquid collection box for a strong negative pressure suction device. Background Technology

[0002] During surgery, especially in some current high-frequency electrosurgical surgeries, a negative pressure device is usually set up to absorb the smoke and bodily fluids generated during the operation, thereby reducing interference with the surgical field of vision. After the negative pressure device absorbs the airflow, it purifies it before discharging it. Conventional negative pressure devices generally use a built-in filter purification structure. When the moisture content of the airflow absorbed by the negative pressure is too high, it is easy for this liquid to accumulate in the filter, leading to rapid consumption of the purification components. Therefore, frequent replacement is required to meet the requirements of smoke purification. In order to ensure effective purification, the filter components built into the negative pressure device are usually of a high filtration level and cost.

[0003] Therefore, it is essential to design a liquid collection box for a strong negative pressure suction device that is low in cost, simple in structure, convenient to produce and use, and used to intercept liquid accumulation before the negative pressure suction flue gas enters the negative pressure device, so as to extend the service life of the built-in filter element of the negative pressure device. Utility Model Content

[0004] In view of the prior art, the purpose of this utility model is to provide a liquid collection box for a strong negative pressure suction device. Through a simple internal layout, most of the liquid can be retained after the suction airflow formed by the negative pressure passes through the box.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a liquid collection box for a strong negative pressure suction device, comprising a box body with a liquid collection cavity, an inlet and an outlet on the box body, the box body comprising a sealed and fastened box cover and a box compartment, the box compartment being provided with a partition and a slot, the inner wall of the box cover being provided with a positioning element that cooperates with the partition, the box cover being provided with a baffle corresponding to the slot, the partition dividing the liquid collection cavity into an air inlet chamber and an air outlet chamber according to the inlet and outlet, the partition having a connecting port at the low point of the air inlet and air outlet chambers, the negative pressure device driving airflow from the side connected to the outlet to enter from the negative pressure suction pipe outside the inlet, passing through the inlet, first downwards, then through the connecting port, and then upwards to be discharged from the outlet.

[0006] As a further feature of the above solution, the inlet is provided with a cover plate that is hinged and fastened to the inlet on the box. The inlet is provided with a pipe groove, and large, medium and small pipe openings with corresponding pipe grooves are provided according to the equipment air pipe diameter in the industry standard. The cover plate is used to close the opening when any inlet is idle.

[0007] As a further feature of the above scheme, the baffle extends into the air intake chamber as an arc-shaped plate, which is positioned above the inlet pipe to guide the incoming airflow.

[0008] As a further feature of the above solution, the baffle extends into the air outlet chamber and is provided with an anti-overflow plate. The anti-overflow plate is positioned below the outlet pipe to prevent the medium in the liquid accumulation chamber from splashing upwards and entering the outlet pipe.

[0009] As a further feature of the above solution, a placement plane is provided at the bottom of the box, and liquid level indicators are marked upwards along the placement plane on the box.

[0010] Beneficial effects:

[0011] The liquid collection box of this high-negative-pressure suction device is divided into an inlet chamber and an outlet chamber by a partition. A "U"-shaped airflow path is formed by the bottom connecting port. Upon entry, the airflow must first sink and then rise. Utilizing the principle of gravity settling, most of the water and particulate matter carried in the airflow settles at the bottom of the liquid collection chamber, effectively preventing liquid from entering the negative-pressure device and greatly extending the lifespan of expensive filter cartridges. The inlet is designed with various standard-sized tubing grooves, and with a hinged cover, it can flexibly adapt to the tubing needs of different surgical scenarios. Unused interfaces can be sealed to prevent dust. Furthermore, a liquid level indicator on the box allows medical staff to monitor the liquid volume in real time, enabling timely cleaning and ensuring a clear surgical field and normal equipment operation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the box structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the component structure of the box in this embodiment.

[0014] Figure 3 This is a schematic diagram of the inner side of the box lid in this embodiment.

[0015] Figure 4 This is a schematic diagram of the liquid accumulation cavity structure in this embodiment.

[0016] Figure 5 This is a schematic diagram of the internal flow after the box is closed in this embodiment.

[0017] Reference numerals: 1. Box body; 11. Placement plane; 12. Liquid level indicator; 2. Inlet pipe; 21. Cover plate; 22. Pipe groove; 24. Large pipe opening; 25. Medium pipe opening; 26. Small pipe opening; 3. Outlet pipe; 4. Liquid accumulation cavity; 41. Air inlet cavity; 42. Air outlet cavity; 43. Baffle plate; 44. Connecting port; 45. Arc-shaped plate; 46. Overflow plate; 48. Baffle plate; 49. Slot; 5. Box compartment; 6. Box cover; 61. Positioning component. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other.

[0019] like Figure 1-5 The liquid collection box of the strong negative pressure suction device shown includes a box body 1 with a liquid collection cavity 4. An inlet 2 and an outlet 3 are provided on the box body 1. The box body 1 includes a sealed and fastened box cover 6 and a box compartment 5. The box compartment 5 is provided with a partition 43 and a slot 49. A positioning element 61 is provided on the inner wall of the box cover 6 to cooperate with the partition 43. A baffle 48 is provided on the box cover 6 corresponding to the slot 49. The partition 43 divides the liquid collection cavity 4 into an air inlet cavity 41 and an air outlet cavity 42 according to the inlet 2 and the outlet 3. The partition 43 has a connecting port 44 at the low point of the air inlet cavity 41 and the air outlet cavity 42. The negative pressure device drives the airflow from the negative pressure suction pipe outside the inlet 2 to enter from the outlet 3 side. After passing through the inlet 2, the airflow goes down first, then through the connecting port 44, and then goes up and is discharged from the outlet 3.

[0020] As a further feature of the above solution, the inlet 2 is provided on the box 5 with a cover plate 21 that is hinged and fastened to the inlet 2. The inlet 2 is provided with a tube groove 22, and according to the industry standard equipment air pipe diameter, it is provided with a large tube opening 24, a medium tube opening 25 and a small tube opening 26 with corresponding tube grooves 22. The cover plate 21 is used to close the opening when any inlet 2 is idle. The large tube opening 24, the medium tube opening 25 and the small tube opening 26 correspond to the most common standard interface diameters of 22 mm, 10 mm (some are 9.5 mm) and 6 mm in medical devices, respectively.

[0021] 22mm connector: This is a larger diameter connector, typically used in high-power suction mode, or to connect to the main unit's air intake line to ensure negative pressure at high flow rates (e.g., 700 liters / minute).

[0022] 10 mm (or 9.5 mm) connector: This is a medium diameter connector, often used to connect to thicker suction hoses, suitable for the normal amount of smoke generated during general tissue incision or electrocoagulation.

[0023] 6 mm (or 6.4 mm) interface: This is a small-diameter, more refined design, often used to connect to a doctor's handheld fine suction pen or special tubing used in laparoscopic surgery.

[0024] As described above, the design of the large inlet 24 and the medium inlet 25 in the attached diagram provides better adaptability. When one of the two inlets 2 is in use, the other inlet 2 can be closed by the cover plate 21.

[0025] As a further provision of the above scheme, the baffle 43 extends into the air intake cavity 41 and is provided with an arc-shaped plate 45. The arc-shaped plate 45 is provided at a position opposite to the upper part of the inlet 2 and is used to guide the incoming airflow.

[0026] As a further provision of the above scheme, the baffle 48 extends into the air outlet chamber 42 and is provided with an anti-overflow plate 46. The anti-overflow plate 46 is located at a position opposite to the outlet 3 to prevent the medium in the liquid accumulation chamber 4 from splashing upward and entering the outlet 3.

[0027] As a further feature of the above solution, a placement plane 11 is provided at the bottom of the box body 1, and a liquid level indicator 12 is provided on the box body 1 with height markings along the placement plane 11. The liquid level indicator can be used to visually observe the liquid level in the liquid accumulation cavity.

[0028] This invention provides a liquid collection box for a strong negative pressure suction device. This collection box is mainly used in medical surgeries to pre-treat water-containing gas streams generated by devices such as high-frequency electrosurgical units, preventing liquid from entering the negative pressure device.

[0029] The liquid collection box includes a box body 1, which is assembled from a box cover 6 and a box compartment 5 by a sealing fastening method, together forming a closed liquid collection cavity 4. The box body 1 is provided with an inlet 2 and an outlet 3 for connecting to an external air pipe.

[0030] Furthermore, the box 1 can be placed flat on a table based on the provided placement plane 11. Inside the box 1, there is a vertical partition 43, which divides the liquid accumulation cavity 4 into an air inlet cavity 41 and an air outlet cavity 42. Only the bottom of the partition 43 has a connecting opening 44, which is located in the low-lying area of ​​the liquid accumulation cavity 4. This forms an airflow path: after the airflow enters the air inlet cavity 41 from the inlet 2, it is blocked by the partition 43 and must first flow downward to the bottom of the cavity, then flow into the air outlet cavity 42 through the connecting opening 44, and finally exit upward through the outlet 3. This "bottom-up" U-shaped airflow path utilizes the principle of gravity settling to cause the liquid in the airflow to condense and accumulate at the bottom of the box.

[0031] As an optimization of this embodiment, the inlet 2 is provided with a hinged cover plate 21, and the surface of the inlet 2 is provided with three different diameter pipe grooves: large pipe 24 (corresponding to 22mm), medium pipe 25 (corresponding to 10mm), and small pipe 26 (corresponding to 6mm). When a certain specification of pipe is used, the remaining unused pipes can be sealed by the cover plate 21 to prevent air leakage.

[0032] In addition, the inner wall of the air inlet chamber 41 is provided with an arc-shaped plate 45 to guide the airflow downwards smoothly; the air outlet chamber 42 is provided with an anti-overflow plate 46 to prevent liquid from splashing into the outlet pipe 3 when it shakes. The side wall of the box body 1 is provided with a liquid level indicator 12 for easy real-time monitoring of the liquid volume.

[0033] The working principle of this utility model is as follows: When in use, the negative pressure suction tube is connected to the appropriate inlet 2 of the corresponding size. The unused inlet 2 is closed by the hinged cover plate 21. The outlet 3 is connected to the air inlet of the negative pressure device. After the negative pressure device is started, the airflow carrying surgical smoke and body fluid droplets enters the air inlet chamber 41 from the inlet 2. Under the guidance of the arc plate 45, it flows downward along the airflow path. When it flows through the low-lying position at the bottom of the air inlet chamber, the denser droplets and particles are directly settled to the bottom of the liquid accumulation chamber 4 by gravity. The remaining airflow enters the air outlet chamber 42 from the connecting port 44 at the bottom of the partition 43, and then flows upward and is discharged to the negative pressure device from the outlet 3.

[0034] Furthermore, the arc-shaped plate 45 at the inlet 2 is used to guide the airflow. If liquid sloshing and splashing occurs during the upward flow of the airflow after passing through the connecting port 44, the overflow plate 46 at the outlet 3 is used to block the splashed droplets and prevent them from directly entering the outlet 3. Finally, the clean airflow containing only a small amount of residual water vapor enters the filter element of the negative pressure equipment, which greatly reduces the speed at which the filter element is wetted and contaminated by the accumulated liquid, effectively extends the replacement cycle of the filter element, and reduces the cost of use.

[0035] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of this utility model and its equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A liquid collection box for a strong negative pressure suction device, comprising a box body (1) with a liquid collection cavity (4), wherein an inlet (2) and an outlet (3) are provided on the box body (1), characterized in that: The box body (1) includes a sealed and fastened box cover (6) and a box compartment (5). The box compartment (5) is provided with a partition (43) and a slot (49). The inner wall of the box cover (6) is provided with a positioning part (61) that cooperates with the partition (43). The box cover (6) is provided with a baffle (48) corresponding to the slot (49). The partition (43) divides the liquid accumulation cavity (4) into an air inlet cavity (41) and an air outlet cavity (42) according to the inlet (2) and the outlet (3). The partition (43) provides a connecting port (44) at the low point of the air inlet cavity (41) and the air outlet cavity (42). The negative pressure device connects to the outlet (3) side and drives the airflow to enter from the negative pressure suction pipe outside the inlet (2). After passing through the inlet (2), it first goes down and then through the connecting port (44) and then goes up and is discharged from the outlet (3).

2. The liquid collection box of a strong negative pressure suction device according to claim 1, characterized in that: The inlet (2) is located on the box (5) and is provided with a cover plate (21) that is hinged and fastened to the inlet (2).

3. The liquid collection box of a strong negative pressure suction device according to claim 2, characterized in that: The inlet (2) is provided with a pipe groove (22), and a large pipe opening (24), a medium pipe opening (25) and a small pipe opening (26) with corresponding pipe grooves (22) are provided according to the equipment air pipe diameter of the industry standard. The cover plate (21) is used to close the opening when any inlet (2) is idle.

4. The liquid collection box of a strong negative pressure suction device according to claim 1, characterized in that: The baffle (43) extends an arc-shaped plate (45) within the air inlet cavity (41). The arc-shaped plate (45) is positioned above the inlet (2) and is used to guide the incoming airflow.

5. The liquid collection box of a strong negative pressure suction device according to claim 1, characterized in that: The baffle (48) extends into the air outlet cavity (42) and is provided with an anti-overflow plate (46). The anti-overflow plate (46) is located at a position opposite to the outlet (3) to prevent the medium in the liquid accumulation cavity (4) from splashing upward and entering the outlet (3).

6. The liquid collection box of a strong negative pressure suction device according to claim 1, characterized in that: The bottom of the box (1) is provided with a placement plane (11), and liquid level indicator scales (12) are marked upward along the placement plane (11) on the box (1).

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