Metering device for negative pressure drainage

Abstract

The utility model discloses a metering device for negative pressure drainage, which comprises a drainage bag body, an input end of the drainage bag body is connected with a drainage tube, and the drainage bag body is used for temporarily storing drainage liquid; the metering bottle has a fixed volume, is used for quantitatively measuring drainage liquid and is connected to the bottom of the drainage bag body through a first connecting pipe, and a first scale mark is arranged on the metering bottle; the metering bag body is connected to the bottom of the metering bottle through a second connecting pipe, a second scale mark is arranged on the metering bag body, and the minimum division value of the second scale mark is the volume of the metering bottle. A certain volume of drainage liquid is metered through the metering bottle, then the drainage liquid quantitatively flows into the metering bag body, the volume of the liquid in the metering bag body can be accurately recognized by recognizing the second scale mark, the drainage liquid of the remaining metering bottle which is less than one metering bottle is determined through the first scale mark, and the drainage liquid can be accurately metered.

Description

Technical Field

[0001] The utility model relates to the technical field of medical supplies, and particularly relates to a metering device for negative pressure drainage. Background Art

[0002] In surgical operations, a negative pressure drainage device is usually used to drain the liquid in a patient's body. The existing negative pressure drainage device includes a negative pressure drainage ball. The input end of the negative pressure drainage ball is connected with a drainage tube, and the output end is connected with a drainage bag for receiving and metering the drained liquid. A switch for discharging the drained liquid is arranged at the bottom of the drainage bag.

[0003] The existing drainage bag is a soft bag. The soft bag can be easily folded and stored as needed, occupies less space, and is convenient for carrying and transportation. Moreover, during use, the soft bag can adapt to various body positions and postures, improving the comfort of the patient. Therefore, the soft drainage bag has become the mainstream trend.

[0004] However, precisely because the existing drainage bag is a soft bag, the volume of the soft bag is greatly affected by the shape of the drainage bag, which easily causes inaccurate metering of the drainage bag and affects the judgment of medical staff. Content of the Utility Model

[0005] The purpose of the utility model is to provide a metering device for negative pressure drainage, so as to solve the technical problem of large metering error and inaccuracy of the drainage bag for negative pressure drainage in the prior art.

[0006] To solve the above technical problems, the utility model specifically provides the following technical solutions:

[0007] A metering device for negative pressure drainage, comprising:

[0008] A drainage bag body, the input end of which is connected with a drainage tube for temporarily storing the drained liquid;

[0009] A metering bottle, which has a fixed volume for quantitatively measuring the drained liquid, is connected to the bottom of the drainage bag body through a first connecting tube, and a first scale line is arranged on the metering bottle;

[0010] A metering bag body, which is connected to the bottom of the metering bottle through a second connecting tube, and a second scale line is arranged on the metering bag body. The minimum scale value of the second scale line is the volume of the metering bottle;

[0011] Wherein, a first valve is arranged on the first connecting tube, a second valve is arranged on the second connecting tube, and gears are arranged on both the first valve and the second valve. The two gears are meshed with each other, so that when the first valve is opened, the second valve is synchronously closed, and vice versa, when the first valve is closed, the second valve is synchronously opened.

[0012] As a preferred embodiment of the present utility model, both the drainage bag body and the metering bag body are soft bags, and the metering bottle has a fixed shape.

[0013] As a preferred embodiment of the present utility model, a third scale line is provided on the drainage bag body.

[0014] As a preferred embodiment of the present utility model, both the first valve and the second valve are one-way valves. The first valve controls the one-way flow of the drained liquid from the drainage bag body to the metering bottle, and the second valve controls the one-way flow of the drained liquid from the metering bottle to the metering bag body.

[0015] The present utility model has the following beneficial effects compared with the prior art:

[0016] The present utility model measures a certain volume of drained liquid through the metering bottle, and then quantitatively flows into the metering bag body. By identifying the second scale line, the volume of the liquid inside the metering bag body can be accurately identified. The remaining drained liquid less than one metering bottle is determined by the first scale line, and the drained liquid can be accurately measured. Moreover, through the transmission of two gears, the first valve and the second valve can be synchronously adjusted to facilitate the inflow of liquid into the metering bottle or the outflow of liquid inside the metering bottle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can be obtained according to the provided drawings.

[0018] Figure 1 It is the overall structure diagram provided by the present utility model;

[0019] Figure 2 It is the structure diagram of the present utility model after removing the gears.

[0020] The reference numerals in the drawings are respectively represented as follows:

[0021] 1. Drainage bag body; 2. Drainage tube; 3. Metering bottle; 4. First connecting tube; 5. First scale line; 6. Metering bag body; 7. Second connecting tube; 8. Second scale line; 9. First valve; 10. Second valve; 11. Gear; 12. Third scale line. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] As Figure 1 and Figure 2 shown, the present invention provides a metering device for negative pressure drainage, which mainly accurately measures the volume of the drained liquid through a metering bottle 3 with an accurate volume.

[0024] The metering device for negative pressure drainage includes:

[0025] A drainage bag body 1, whose input end is connected with a drainage tube 2 for temporarily storing the drained liquid;

[0026] A metering bottle 3, which has a fixed volume for quantitatively measuring the drained liquid, is connected to the bottom of the drainage bag body 1 through a first connecting tube 4, and a first scale line 5 is provided on the metering bottle 3;

[0027] A metering bag body 6 is connected to the bottom of the metering bottle 3 through a second connecting tube 7, and a second scale line 8 is provided on the metering bag body 6, and the minimum scale value of the second scale line 8 is the volume of the metering bottle 3;

[0028] Wherein, a first valve 9 is provided on the first connecting tube 4, a second valve 10 is provided on the second connecting tube 7, and gears 11 are provided on both the first valve 9 and the second valve 10, and the two gears 11 are meshed with each other, so that when the first valve 9 is opened, the second valve 10 is synchronously closed, and vice versa, when the first valve 9 is closed, the second valve 10 is synchronously opened.

[0029] Since the existing drainage bag is a soft bag, the volume of the soft bag is greatly affected by the shape of the drainage bag, which is likely to cause inaccurate metering of the drainage bag and affect the judgment of medical staff. Therefore, it is necessary to develop a metering device for negative pressure drainage that can accurately measure.

[0030] In this embodiment, a certain volume of the drained liquid is metered by the metering bottle 3 and then quantitatively flows into the metering bag body 6. By identifying the second scale line 8, the volume of the liquid inside the metering bag body 6 can be accurately identified. The remaining drained liquid less than one metering bottle 3 is determined by the first scale line 5, and the drained liquid can be accurately metered. Moreover, through the transmission of the two gears 11, the first valve 9 and the second valve 10 can be synchronously adjusted to facilitate the liquid to flow into the metering bottle 3 or the liquid inside the metering bottle 3 to flow out.

[0031] During actual use, 1. Unfold the device so that the device is suspended from top to bottom;

[0032] 2. Open the first valve 9. Through the meshing drive of the gear 11, the second valve 10 is closed;

[0033] 3. The drained liquid first flows into the drainage bag body 1 and is temporarily stored inside. Then, the liquid inside the drainage bag body 1 reaches the inside of the measuring bottle 3 through the first connecting pipe 4. When the measuring bottle 3 is full of liquid, the excess liquid will remain inside the drainage bag body 1;

[0034] 4. Close the first valve 9. Through the meshing drive of the gear 11, the second valve 10 is opened. At this time, the liquid inside the measuring bottle 3 flows into the measuring bag body 6. Each scale on the measuring bag body 6 represents the volume of one measuring bottle 3. Even if the measuring bag body 6 is a soft bag and its volume is affected by the shape, since the volume inside the measuring bag body 6 is a multiple of the volume of the measuring bottle 3, the amount of liquid inside the measuring bag body 6 can be accurately obtained by the position relationship between the liquid inside the measuring bag body 6 and the second scale line 8;

[0035] 5. When all the liquid inside the measuring bottle 3 flows into the measuring bag body 6, open the first valve 9. Through the meshing drive of the gear 11, the second valve 10 is closed. The process of opening and closing the valve is very fast. Then repeat the above steps to make the liquid inside the drainage bag body 1 flow into the measuring bottle 3 for measurement and then into the measuring bag body 6 until all the liquid inside the drainage bag body 1 flows into the measuring bottle 3. Finally, for the liquid less than the volume of one measuring bottle 3, its volume is determined by the first scale line 5.

[0036] As a preferred embodiment of this implementation manner, both the drainage bag body 1 and the measuring bag body 6 are soft bags, and the measuring bottle 3 has a fixed shape. Both the drainage bag body 1 and the measuring bag body 6 being soft bags can be easily folded and stored as needed, occupying less space and being convenient for carrying and transportation. And during use, the soft bags can adapt to various body positions and postures, improving the comfort of the patient. The measuring bottle 3 having a fixed shape can determine the volume of the measuring bottle 3, which is convenient for measurement.

[0037] A third scale line 12 is provided on the drainage bag body 1. Through the third scale line 12, the amount of liquid inside the drainage bag body 1 can be roughly estimated.

[0038] To prevent liquid backflow, both the first valve 9 and the second valve 10 are one-way valves. The first valve 9 controls the one-way flow of the drained liquid from the drainage bag body 1 to the measuring bottle 3, and the second valve 10 controls the one-way flow of the drained liquid from the measuring bottle 3 to the measuring bag body 6. By making both the first valve 9 and the second valve 10 one-way valves to control the one-way flow of the liquid, the liquid volume can be measured more accurately.

[0039] The above embodiments are only exemplary embodiments of the present application and are not used to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements within the essence and protection scope of the present application, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of the present application.

Claims

1. A metering device for negative pressure drainage, characterized in that: include: A drainage bag body (1), the input end of which is connected to a drainage tube (2) for temporarily storing drainage liquid; A measuring bottle (3) having a fixed volume and used for quantitatively measuring drainage liquid, connected to the bottom of the drainage bag body (1) via a first connecting tube (4), and a first scale line (5) is provided on the measuring bottle (3); The measuring bag body (6) is connected to the bottom of the measuring bottle (3) through a second connecting pipe (7), and a second scale line (8) is provided on the measuring bag body (6), wherein the minimum graduation value of the second scale line (8) is the volume of the measuring bottle (3); A first valve (9) is provided on the first connecting pipe (4), a second valve (10) is provided on the second connecting pipe (7), and gears (11) are provided on both the first valve (9) and the second valve (10). The two gears (11) mesh with each other so that when the first valve (9) is opened, the second valve (10) is closed synchronously, and conversely, when the first valve (9) is closed, the second valve (10) is opened synchronously.

2. A negative pressure drainage metering device according to claim 1, characterized in that: The drainage bag body (1) and the measuring bag body (6) are both soft bags, and the measuring bottle (3) has a fixed shape.

3. A negative pressure drainage metering device according to claim 2, characterized in that: A third scale line (12) is provided on the drainage bag body (1).

4. A negative pressure drainage metering device according to claim 3, characterized in that: The first valve (9) and the second valve (10) are both one-way valves. The first valve (9) controls the drainage liquid to flow unidirectionally from the drainage bag body (1) to the measuring bottle (3), and the second valve (10) controls the drainage liquid to flow unidirectionally from the measuring bottle (3) to the measuring bag body (6).

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