Anti-backflow disposable negative pressure drainage bag

Abstract

The utility model relates to the technical field of medical care, in particular to an anti-backflow disposable negative pressure drainage bag which comprises a drainage bag body, a drainage cap is arranged at the top of the drainage bag body, a mechanical check valve is connected to the top of an inner cavity of the drainage cap in a hot melting mode, and the two sides of the top of the drainage cap are both communicated with liquid outlet connecting pipes. The bottom of the liquid outlet connecting pipe penetrates into an inner cavity of the drainage bag body and is communicated with a mechanical check valve, the bottom of the mechanical check valve is communicated with a liquid inlet connecting pipe, and the top of the surface of the liquid inlet connecting pipe is fixedly sleeved with an anti-bending protective sleeve. The positioning bolt, the label placing frame, the connecting screw hole, the liquid inlet connecting pipe and the mechanical check valve are used in cooperation, in the using process, gravitational potential energy and a mechanical clamping mechanism are matched, a good check effect can be provided, external extrusion force with certain strength is borne in time, and the anti-blocking effect is achieved. And a good non-return effect can still be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of medical supplies, in particular to a disposable negative pressure drainage bag for backflow prevention. Background Art

[0002] Medical supplies refer to instruments, equipment, materials and other items used in medical activities such as prevention, diagnosis, treatment and rehabilitation. In the process of medical care, anti-reflux disposable negative pressure drainage bags are often needed.

[0003] After searching, the patent number is CN214911106U, and the name is a disposable negative pressure drainage bag with anti-backflow, including a drainage bag body. Through research and analysis, it is found that although it has the advantage of being convenient for medical staff to observe the label, it still has the following disadvantages to a certain extent.

[0004] For example, during the use of the anti-backflow disposable negative pressure drainage bag mentioned above, its anti-backflow structure usually prevents backflow by forming a pressure difference, and it cannot maintain the anti-backflow effect when it is subjected to strong external pressure, resulting in a general anti-backflow effect of its main body, and it usually does not have a composite bag body, resulting in poor anti-puncture effect of its main body, which is easy to cause certain inconveniences to medical staff. In order to solve the above technical problems, we have designed an anti-backflow disposable negative pressure drainage bag. Utility Model Content

[0005] The purpose of the utility model is to provide a disposable negative pressure drainage bag that prevents backflow, which has the advantages of good backflow prevention effect and good main body anti-puncture effect, and solves the problem of poor backflow prevention effect and relatively general main body anti-puncture effect.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a backflow-proof disposable negative pressure drainage bag, comprising a drainage bag main body, a drainage cap is arranged on the top of the drainage bag main body, a mechanical check valve is hot-melt connected to the top of the inner cavity of the drainage cap, both sides of the top of the drainage cap are connected with liquid outlet connecting pipes, the bottom of the liquid outlet connecting pipe passes through the inner cavity of the drainage bag main body and is connected with the mechanical check valve, the bottom of the mechanical check valve is connected with a liquid inlet connecting pipe, and the top fixed sleeve on the surface of the liquid inlet connecting pipe is provided with a bending sheath.

[0007] Preferably, the drainage bag body comprises an outer protective layer, an inner protective layer is pasted to the inner wall of the outer protective layer, and an anti-puncture layer is pasted to the inner wall of the inner protective layer.

[0008] Preferably, the inner wall of the puncture-proof layer is hot-melt-connected with a heat-insulating layer, and the inner wall of the heat-insulating layer is sprayed with a corrosion-resistant layer.

[0009] Preferably, the outer protective layer is made of polycarbonate material, the inner protective layer is made of polyurethane fiber material, and the stab-proof layer is made of polyethylene material.

[0010] Preferably, the heat insulation layer is made of polystyrene material, and the corrosion-resistant layer is sprayed with epoxy resin material.

[0011] Preferably, a connecting screw hole is provided on the top of the drainage bag main body surface, a positioning bolt used in conjunction with the connecting screw hole is provided through the outer side of the drainage cap, and a label placement rack is installed through the bottom of the drainage bag main body surface.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model provides a positioning bolt, a label placement rack, a connecting screw hole, a liquid inlet connecting pipe and a mechanical check valve for coordinated use. During use, the utility model can provide a better check effect through the mutual cooperation of gravity potential energy and the mechanical clamping mechanism. Even if it is subjected to an external squeezing force of a certain intensity, it can still ensure a better check effect.

[0014] The utility model provides a bendable sheath, an outer protective layer, an inner protective layer, a puncture-proof layer, a heat-insulating layer and a corrosion-resistant layer for coordinated use. During use, the utility model can achieve a good anti-puncture effect by means of multiple material composite stacking. At the same time, it can provide a certain heat-insulating and corrosion-resistant effect for the drainage bag body, thereby reducing the temperature influence caused by the temperature difference between the inside and the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a three-dimensional axonometric diagram of the local structure of the utility model;

[0017] Figure 3 It is a three-dimensional bottom view schematic diagram of the local structure of the utility model;

[0018] Figure 4 It is a three-dimensional exploded schematic diagram of the local structure of the utility model.

[0019] In the figure: 1. Drainage bag body; 2. Drainage cap; 3. Liquid outlet connecting pipe; 4. Positioning bolt; 5. Label placement rack; 6. Connecting screw hole; 7. Liquid inlet connecting pipe; 8. Mechanical check valve; 9. Bending sheath; 10. Outer protective layer; 11. Inner protective layer; 12. Anti-puncture layer; 13. Heat insulation layer; 14. Corrosion-resistant layer. DETAILED DESCRIPTION

[0020] See also Figure 1-Figure 4A backflow-proof disposable negative pressure drainage bag comprises a drainage bag body 1, a drainage cap 2 is arranged on the top of the drainage bag body 1, a mechanical check valve 8 is hot-melt-connected to the top of the inner cavity of the drainage cap 2, both sides of the top of the drainage cap 2 are connected with liquid outlet connecting pipes 3, the bottom of the liquid outlet connecting pipe 3 passes through the inner cavity of the drainage bag body 1 and is connected with the mechanical check valve 8, the bottom of the mechanical check valve 8 is connected with a liquid inlet connecting pipe 7, and the top fixed sleeve on the surface of the liquid inlet connecting pipe 7 is provided with a bending sheath 9.

[0021] See also Figure 4 The drainage bag body 1 includes an outer protective layer 10 , an inner protective layer 11 is pasted on the inner wall of the outer protective layer 10 , and an anti-puncture layer 12 is pasted on the inner wall of the inner protective layer 11 .

[0022] See also Figure 4 The inner wall of the puncture-proof layer 12 is hot-melt connected with a heat-insulating layer 13 , and the inner wall of the heat-insulating layer 13 is sprayed with a corrosion-resistant layer 14 .

[0023] See also Figure 4 The outer protective layer 10 is made of polycarbonate material, the inner protective layer 11 is made of polyurethane fiber material, and the stab-proof layer 12 is made of polyethylene material.

[0024] See also Figure 4 The heat insulation layer 13 is made of polystyrene material, and the corrosion-resistant layer 14 is sprayed with epoxy resin material.

[0025] See also Figure 2 A connecting screw hole 6 is provided at the top of the surface of the drainage bag body 1, a positioning bolt 4 used in conjunction with the connecting screw hole 6 is penetrated through the outer side of the drainage cap 2, and a label placement frame 5 is installed through the bottom of the surface of the drainage bag body 1.

[0026] By providing the label placement rack 5, it is possible to facilitate the placement of labels, thereby making it easier for users to observe them;

[0027] By providing the anti-bending sheath 9, the connection between the liquid inlet connecting pipe 7 and the mechanical check valve 8 can be protected, thereby achieving a better anti-bending effect;

[0028] By providing the positioning bolt 4 and the connecting screw hole 6, the connection between the drainage bag body 1 and the drainage cap 2 can be facilitated, and at the same time, good sealing performance of the connection can be ensured;

[0029] By providing the corrosion-resistant layer 14, the liquid inside the drainage bag can be protected to prevent the liquid from corroding the inner wall of the drainage bag body 1;

[0030] By providing the outer protective layer 10 and the inner protective layer 11, the anti-puncture effect of the drainage bag body 1 can be improved by composite superposition;

[0031] By providing the anti-puncture layer 12, a better anti-puncture effect can be provided on the basis of the outer protective layer 10 and the inner protective layer 11;

[0032] By providing the heat insulation layer 13, a certain heat insulation effect can be provided, thereby reducing the influence of the temperature difference between the inside and the outside.

[0033] When in use, by setting up a label placement rack 5, it is possible to facilitate the placement of labels, so that it is convenient for users to observe them. By setting up a bending sheath 9, the connection between the liquid inlet connecting pipe 7 and the mechanical check valve 8 can be protected, thereby achieving a good anti-bending effect. By setting up a positioning bolt 4 and a connecting screw hole 6, it is possible to facilitate the connection between the drainage bag body 1 and the drainage cap 2, and at the same time, it can also ensure a good sealing performance of the connection. By setting up a corrosion-resistant layer 14, the liquid inside the drainage bag can be protected to prevent it from corroding the inner wall of the drainage bag body 1. By setting up an outer protective layer 10 and an inner protective layer 11, the anti-puncture effect of the drainage bag body 1 can be improved by a composite superposition method. By setting up an anti-puncture layer 12, a good anti-puncture effect can be provided on the basis of the outer protective layer 10 and the inner protective layer 11. By setting up a heat-insulating layer 13, a certain heat-insulating effect can be provided, thereby reducing the influence of the temperature difference between the inside and the outside. By setting up a mechanical check valve 8, a good non-return effect can be provided by mechanical clamping.

[0034] In summary: the anti-backflow disposable negative pressure drainage bag solves the problems of poor anti-backflow effect and relatively general anti-puncture effect of the main body by arranging the drainage bag main body 1, the drainage cap 2, the liquid outlet connecting tube 3, the positioning bolt 4, the bending sheath 9, the outer protective layer 10, the inner protective layer 11, the anti-puncture layer 12, the heat insulation layer 13 and the corrosion-resistant layer 14.

Claims

1. A disposable negative pressure drainage bag for preventing backflow, comprising a drainage bag body (1), characterized in that: A drainage cap (2) is provided on the top of the drainage bag body (1), and a mechanical check valve (8) is hot-melt-connected to the top of the inner cavity of the drainage cap (2). Both sides of the top of the drainage cap (2) are connected to liquid outlet connecting pipes (3), and the bottom of the liquid outlet connecting pipe (3) penetrates into the inner cavity of the drainage bag body (1) and is connected to the mechanical check valve (8). The bottom of the mechanical check valve (8) is connected to a liquid inlet connecting pipe (7), and a top fixed sleeve on the surface of the liquid inlet connecting pipe (7) is provided with a bending sleeve (9).

2. The anti-backflow disposable negative pressure drainage bag according to claim 1, characterized in that: The drainage bag body (1) comprises an outer protective layer (10), an inner protective layer (11) is adhered to the inner wall of the outer protective layer (10), and an anti-puncture layer (12) is adhered to the inner wall of the inner protective layer (11).

3. The anti-backflow disposable negative pressure drainage bag according to claim 2, characterized in that: The inner wall of the puncture-proof layer (12) is hot-melt-connected with a heat-insulating layer (13), and the inner wall of the heat-insulating layer (13) is spray-coated with a corrosion-resistant layer (14).

4. The anti-backflow disposable negative pressure drainage bag according to claim 2, characterized in that: The outer protective layer (10) is made of a polycarbonate material, the inner protective layer (11) is made of a polyurethane fiber material, and the stab-proof layer (12) is made of a polyethylene material.

5. The anti-backflow disposable negative pressure drainage bag according to claim 3, characterized in that: The heat insulation layer (13) is made of polystyrene material, and the corrosion-resistant layer (14) is sprayed with epoxy resin material.

6. The anti-backflow disposable negative pressure drainage bag according to claim 1, characterized in that: A connecting screw hole (6) is provided at the top of the surface of the drainage bag body (1), a positioning bolt (4) for use with the connecting screw hole (6) is provided through the outer side of the drainage cap (2), and a label placement frame (5) is installed through the bottom of the surface of the drainage bag body (1).

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