Anti-backflow drainage device

Abstract

The utility model relates to an anti-backflow drainage device which comprises a drainage bag and a drainage tube. The upper end of the drainage tube is connected with a to-be-drained part of a patient, and the lower end of the drainage tube extends downwards by a preset distance and then is connected with an inlet of the drainage bag; the drainage device is characterized in that the drainage tube is provided with a blocking mechanism which can automatically close the drainage tube to prevent the body fluid in the drainage bag from flowing back into the body of a patient when the drainage bag is filled with the body fluid. The drainage bag has the advantages that the drainage tube is automatically closed when the drainage bag is full of liquid, the liquid in the drainage bag is effectively prevented from flowing back into the body of a patient, and the body health of the patient is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, in particular to a backflow-preventing drain. Background Art

[0002] In clinical treatment, many patients need drainage: for example, after some surgeries, a drainage tube needs to be inserted into the corresponding position of the body to drain the body fluid through the drainage tube to prevent infection. Generally, the drained fluid is collected in a drainage bag, and the drainage process usually lasts for a long time. As the drainage proceeds, the drainage bag may be full of fluid and has not been processed in time, which causes the fluid in the drainage bag to flow back into the patient's body, which is very detrimental to the patient's health. Utility Model Content

[0003] In summary, in order to overcome the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a drain device for preventing backflow.

[0004] The utility model solves the above-mentioned technical problems with the following technical solutions: a backflow-proof drainage device, comprising a drainage bag and a drainage tube; the upper end of the drainage tube is connected to the part of the patient that requires drainage, and the lower end thereof is extended downward by a preset distance and then connected to the inlet of the drainage bag; the characteristic is that the drainage tube is provided with a blocking mechanism which automatically closes the drainage tube when the drainage bag is full of body fluid to prevent the body fluid in the drainage bag from flowing back into the patient's body.

[0005] The utility model has the beneficial effect of automatically closing the drainage tube when the drainage bag is full of liquid, effectively preventing the liquid in the drainage bag from flowing back into the patient's body, and ensuring the patient's health.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the blocking mechanism includes a shell, a sphere, an electromagnet and a battery; the shell is installed on the drainage tube, and the interior thereof is a hollow structure; the upper part of the hollow structure is a cone with a small top and a large bottom, the middle part is a cube, and the lower part is a cone with a large top and a small bottom; the sphere is rotatable in the hollow structure, and the sphere is tangent to the cone surfaces of the upper and lower parts of the hollow structure; a drainage channel for conducting the drainage tube is vertically provided in the sphere, the bottom of which is made of metal material, and the rest of the sphere is made of non-metal material, and the total weight of the bottom of the sphere is greater than the total weight of the rest of the sphere;

[0008] The battery and the electromagnet are respectively installed on one side of the shell, and the battery is connected to the electromagnet through a power supply line and provides electric energy; two contacts for disconnecting the power supply line are arranged on the top of the inner wall of the drainage bag.

[0009] The beneficial effect of adopting the above further solution is that when the drainage bag is full of liquid, the electromagnet will be energized to attract the ball to rotate, thereby automatically closing the drainage tube.

[0010] Furthermore, it also includes a warning light, and the warning light and the electromagnet are connected in series on the power supply line.

[0011] The beneficial effect of adopting the above further solution is that when the drainage channel is full of liquid, the warning light will light up to remind the nursing staff that the drainage channel is currently full of liquid.

[0012] Furthermore, the drainage bag is made of a transparent material, and its outer side wall is provided with a scale for reading the volume of the body fluid collected inside.

[0013] The beneficial effect of adopting the above further scheme is that it is easy to obtain the amount of liquid for the doctor to make a correct diagnosis.

[0014] Furthermore, the top of the drainage bag is provided with a negative pressure hole for evacuating the interior thereof, and the bottom of the drainage bag is provided with an outlet for discharging the collected body fluids.

[0015] The beneficial effect of adopting the above further solution is that it is convenient to form negative pressure inside the drainage bag at the beginning of drainage to perform drainage, which is convenient for the discharge treatment of the collected liquid.

[0016] Furthermore, a hanging rope for hanging the drainage bag is provided on the top of the drainage bag.

[0017] The beneficial effect of adopting the above further solution is that it is convenient to hang the drainage bag during the drainage process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model when the drainage tube is not closed;

[0019] Figure 2 It is a structural schematic diagram of the utility model when the drainage tube is closed;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the shell.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Drainage bag, 2. Drainage tube, 3. Shell, 4. Sphere, 5. Solenoid valve, 6. Battery, 7. Drainage channel, 8. Power supply line, 9. Contact, 10. Scale, 11. Negative pressure hole, 12. Outlet, 13. Hanging rope. DETAILED DESCRIPTION

[0023] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0024] like Figure 1 and 2 As shown, a drainage device for preventing backflow includes a drainage bag 1 and a drainage tube 2. The upper end of the drainage tube 2 is connected to the part of the patient that needs drainage, and the lower end thereof extends downward by a preset distance and then connects to the inlet of the drainage bag 1. The drainage tube 2 is provided with a blocking mechanism that automatically closes the drainage tube 2 when the drainage bag 1 is full of body fluid to prevent the body fluid in the drainage bag 1 from backflowing into the patient's body.

[0025] The blocking mechanism includes a housing 3, a sphere 4, an electromagnet 5 and a battery 6. The housing 3 is mounted on the drainage tube 2 and has a hollow interior. Figure 3 As shown, the upper part of the hollow structure is a cone-shaped with a small top and a large bottom, the middle part is a cube-shaped, and the lower part is a cone-shaped with a large top and a small bottom. The sphere 4 is rotatable in the hollow structure, and the sphere 4 is tangent to the cone surface of the upper and lower parts of the hollow structure. A drainage channel 7 for conducting the drainage tube 2 is vertically provided in the sphere 4, the bottom of which is made of metal material, and the rest is made of non-metallic material, and the total weight of the bottom of the sphere 4 is greater than the total weight of the rest. The battery 6 and the electromagnet 5 are respectively installed on one side of the housing 3, and the battery 6 is connected through the power supply line 8 and provides electrical energy to the electromagnet 5. Two contacts 9 for disconnecting the power supply line 8 are provided on the top of the inner wall of the drainage bag 1. The drainer also includes a warning light 14, and the warning light 14 is connected in series with the electromagnet 5 on the power supply line 8.

[0026] The drainage bag 1 is made of transparent material, and its outer wall is provided with a scale 10 for reading the volume of the body fluid collected inside. In clinical work, patients with drainage tubes need to accurately record the amount, properties and color of the drained liquid to provide an accurate basis for the doctor's diagnosis and treatment. The transparent drainage bag 1 can directly observe the color of the liquid, and the amount of liquid collected in the drainage bag 1 can be read through the scale 10. The top of the drainage bag 1 is provided with a negative pressure hole 11 for vacuuming the inside, and the bottom is provided with an outlet 12 for discharging the collected body fluid. Before drainage, the air in the drainage bag 1 is extracted through the negative pressure hole 11, so that the inside is a negative pressure environment. Under the action of the above negative pressure, the liquid in the patient's body can be discharged and drained into the drainage bag 1 as soon as possible. The top of the drainage bag 1 is also provided with a hanging rope 13 for hanging it. During the drainage process, the drainage bag 1 can be hung on the bed or other suitable positions by the hanging rope 13.

[0027] During drainage, the drainage bag 1 is first placed in a negative pressure environment, and then the drainage tube 2 is inserted into the corresponding position of the patient, and the patient's body fluid enters the drainage bag 1 along the drainage tube 2 through the drainage channel of the sphere 4. As the drainage proceeds, the liquid level in the drainage bag 1 will gradually rise. When the liquid level of the drainage bag 1 reaches the highest, that is, the drainage bag 1 is full of liquid, if the drainage tube 2 is not closed at this time, the liquid in the drainage bag 1 will flow back into the patient's body along the drainage tube 2. Therefore, the utility model designs a blocking mechanism for the above content: when the drainage bag 1 is full of liquid, the two contacts 9 touch the liquid and then conduct the power supply line 8, the battery 6 provides power to the electromagnet 5, and the electromagnet 5 has magnetism after being energized, and then has an adsorption effect on the bottom of the sphere 4. Under the action of the adsorption force, the sphere 4 rotates 90°, and the drainage channel 7 therein also rotates 90° synchronously to isolate the drainage tube 2, and then close the drainage tube 2, preventing the liquid in the drainage bag 1 from flowing back into the patient's body along the drainage tube 2. While the ball 4 rotates to isolate the drainage tube 2, the two contacts 9 touch the liquid and thus conduct the power supply line 8, and the warning light 14 on the power supply line also lights up, thereby reminding the nursing staff to deal with the liquid collected in the drainage bag 1 as soon as possible in order to continue draining the patient.

[0028] When the drainage bag 1 is full of liquid, the nursing staff discharges the liquid in the drainage bag 1 through the outlet 12. After the liquid in the drainage bag 1 is discharged, the two contacts 9 cannot touch the liquid and thus disconnect the power supply line 8, and the battery 6 cannot provide power to the electromagnet 5. After the electromagnet 5 is powered off, it loses its magnetism and has no adsorption effect on the bottom of the sphere 4. Due to the heavy weight of the bottom of the sphere 4, it will rotate in the opposite direction and reset under the action of the gravity of its bottom. After the sphere 4 is reset, its drainage channel 7 reopens the drainage tube 2 to continue draining the patient.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A drainage device for preventing backflow, comprising a drainage bag (1) and a drainage tube (2); the upper end of the drainage tube (2) is connected to the part of the patient that needs drainage, and the lower end of the drainage tube (2) extends downward for a preset distance and then connects to the inlet of the drainage bag (1); characterized in that: The drainage tube (2) is provided with a blocking mechanism for automatically closing the drainage tube (2) when the drainage bag (1) is full of body fluid to prevent the body fluid in the drainage bag (1) from flowing back into the patient's body; The blocking mechanism comprises a shell (3), a sphere (4), an electromagnet (5) and a battery (6); the shell (3) is mounted on the drainage tube (2) and has a hollow structure inside; the upper part of the hollow structure is a cone with a small top and a large bottom, the middle part is a cube, and the lower part is a cone with a large top and a small bottom; the sphere (4) is rotatably located in the hollow structure, and the sphere (4) is tangent to the cone surfaces of the upper and lower parts of the hollow structure; a drainage channel (7) for conducting the drainage tube (2) is vertically arranged in the sphere (4), the bottom of which is made of metal material, and the rest of the sphere is made of non-metal material, and the total weight of the bottom of the sphere (4) is greater than the total weight of the rest of the sphere; The battery (6) and the electromagnet (5) are respectively mounted on one side of the housing (3), and the battery (6) is connected via a power supply line (8) and provides electrical energy to the electromagnet (5); two contacts (9) for disconnecting the power supply line (8) are provided at the top of the inner wall of the drainage bag (1).

2. The anti-backflow diverter according to claim 1, characterized in that: It also includes a warning light (14), wherein the warning light (14) and the electromagnet (5) are connected in series on the power supply line (8).

3. The anti-backflow diverter according to claim 1, characterized in that: The drainage bag (1) is made of a transparent material, and its outer side wall is provided with a scale (10) for reading the volume of the body fluid collected inside.

4. The anti-backflow diverter according to claim 1, characterized in that: The top of the drainage bag (1) is provided with a negative pressure hole (11) for evacuating the interior of the drainage bag, and the bottom of the drainage bag (1) is provided with an outlet (12) for discharging the collected body fluid.

5. The anti-backflow diverter according to any one of claims 1 to 4, characterized in that: The top of the drainage bag (1) is provided with a hanging rope (13) for hanging the drainage bag (1).

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