Liquid level alarm device of infusion pressurizing bag

Abstract

The utility model relates to the technical field of infusion pressurizing bags, and discloses a liquid level alarm device of an infusion pressurizing bag, which comprises the infusion pressurizing bag, the bottom of the infusion pressurizing bag is communicated with a round tube, an infusion bag is arranged in the infusion pressurizing bag, an infusion tube is arranged at the bottom of the infusion bag, and a liquid level alarm device is arranged on the infusion tube. The bottom of the infusion tube penetrates through the round tube and extends to the bottom of the round tube, a first non-contact liquid level sensor is installed at the bottom of the front side of the infusion pressurization bag, the rear side of the first non-contact liquid level sensor makes contact with the surface of the infusion bag, and a fixing ring is fixedly connected to the surface of the first non-contact liquid level sensor. According to the infusion bag, through mutual cooperation of the infusion pressurization bag, the round pipe, the first non-contact liquid level sensor, the second non-contact liquid level sensor, the normal liquid level indicating lamp strip and other structures, continuous double monitoring work can be conducted on the liquid level in the infusion bag, and the effect that an operator can be prompted in time when the liquid level is too low is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of infusion pressure bags, in particular to a liquid level alarm device for an infusion pressure bag. Background Art

[0002] Infusion pressure bags are mainly used for rapid pressure infusion during blood transfusion and infusion to help bagged liquids such as blood, plasma, and cardiac arrest solution enter the human body as soon as possible. They can also continuously pressurize heparin-containing liquids to flush the indwelling arterial pressure monitoring tube. They are easy to use, safe and reliable, and are essential for battlefield, field and clinical emergency treatment;

[0003] When rapidly infusing a patient, an infusion pressure bag is needed to accelerate the liquid into the human body. However, the existing infusion pressure bags lack an alarm function and cannot give a prompt when the liquid is about to run out. When the operator cannot replace the liquid or stop the infusion in time, the air inside the infusion bag will enter the human body, posing a life threat to the patient.

[0004] Therefore, a liquid level alarm device for an infusion pressure bag is proposed to solve the above problems. Summary of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a liquid level alarm device for an infusion pressure bag, aiming to improve the problem that in the prior art, a prompt cannot be given when the liquid is about to run out, and when the operator cannot replace the liquid or stop the infusion in time, the air inside the infusion bag will enter the human body.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A liquid level alarm device for an infusion pressure bag, comprising an infusion pressure bag. A circular tube is connected to the bottom of the infusion pressure bag. An infusion bag is arranged inside the infusion pressure bag. An infusion tube is installed at the bottom of the infusion bag. The bottom of the infusion tube passes through the circular tube and extends to the bottom of the circular tube. A non-contact liquid level sensor 1 is installed at the bottom of the front side of the infusion pressure bag. The rear side of the non-contact liquid level sensor 1 is in contact with the surface of the infusion bag. A fixing ring is fixedly connected to the surface of the non-contact liquid level sensor 1. The rear side of the fixing ring is fixedly connected to the surface of the infusion pressure bag. A non-contact liquid level sensor 2 is installed on the left side of the surface of the circular tube. Connecting plates are fixedly connected to both sides of the bottom of the circular tube. A square sleeve is fixedly connected to the bottom of the connecting plate. The square sleeve is sleeved on the surface of the infusion tube. Liquid level normal indicator strips are fixedly connected to the top of the front and rear sides of the infusion pressure bag. Replacement indicator strips are fixedly connected to the bottom of the front and rear sides of the infusion pressure bag. The liquid level normal indicator strips and the replacement indicator strips are both used in cooperation with the non-contact liquid level sensor 1. The replacement indicator strips are used in cooperation with the non-contact liquid level sensor 2. A limiting component is arranged inside the circular tube. A pressing component is installed inside the square sleeve;

[0008] As a further description of the above technical solution:

[0009] The limiting component includes a V-shaped plate. The V-shaped plate is arranged inside the circular tube. Elastic sheets are fixedly connected to the four corners on the right side of the V-shaped plate. The right side of the elastic sheet is fixedly connected to the inner wall of the circular tube;

[0010] As a further description of the above technical solution:

[0011] Slide bars are fixedly connected to the four corners on the right side of the V-shaped plate. The right side of the slide bar penetrates to the right side of the circular tube. A limiting plate is fixedly connected to the right side of the slide bar;

[0012] As a further description of the above technical solution:

[0013] The pressing component includes a servo motor. The servo motor is installed at the top of the rear side of the square sleeve. The output end of the servo motor extends into the square sleeve and is movably connected to the inner wall of the square sleeve. A pressing plate is fixedly connected to the output end of the servo motor. The servo motor is used in cooperation with the non-contact liquid level sensor 2;

[0014] As a further description of the above technical solution:

[0015] Reinforcing strips are fixedly connected to the top and bottom of the surface of the square sleeve;

[0016] As a further description of the above technical solution:

[0017] Baffles are installed on the top and bottom of the front side of the square sleeve through elastic hinges;

[0018] As a further description of the above technical solution:

[0019] A square column is fixedly connected to the top of the inner cavity of the square sleeve;

[0020] As a further description of the above technical solution:

[0021] The surfaces of the non-contact liquid level sensor I and the non-contact liquid level sensor II are both sleeved with protective covers, and the surfaces of the protective covers are fixedly connected to the surfaces of the infusion pressure bag and the round tube respectively.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, through the mutual cooperation of structures such as the infusion pressure bag, the round tube, the non-contact liquid level sensor I, the non-contact liquid level sensor II and the normal liquid level indicator bar, the liquid level inside the infusion bag can be continuously monitored in a dual manner, achieving the effect of timely prompting the operator when the liquid level is too low.

[0024] 2. In the utility model, under the mutual cooperation of the non-contact liquid level sensor II, the steering gear and the pressing plate, the infusion tube can be closed when the liquid level is too low to solve the situation that air will enter the human body through the infusion tube after the liquid is finished. Description of the drawings

[0025] Figure 1 Is a three-dimensional schematic diagram of a liquid level alarm device for an infusion pressure bag proposed by the utility model;

[0026] Figure 2 Is a structural schematic diagram of the round tube of a liquid level alarm device for an infusion pressure bag proposed by the utility model;

[0027] Figure 3 Is a structural schematic diagram of the V-shaped plate of a liquid level alarm device for an infusion pressure bag proposed by the utility model;

[0028] Figure 4 Is a structural schematic diagram of the square sleeve of a liquid level alarm device for an infusion pressure bag proposed by the utility model;

[0029] Figure 5 Is a structural schematic diagram of the pressing plate of a liquid level alarm device for an infusion pressure bag proposed by the utility model;

[0030] Figure 6 Is Figure 1 The enlarged view of A in

[0031] Legend description:

[0032] 1. Infusion pressure bag; 2. Round tube; 3. Infusion bag; 4. Infusion tube; 5. Non-contact liquid level sensor I; 6. Fixed ring; 7. Non-contact liquid level sensor II; 8. Connecting plate; 9. Square sleeve; 10. Normal liquid level indicator bar; 11. Replacement indicator bar; 12. V-shaped plate; 13. Elastic sheet; 14. Slide bar; 15. Limiting plate; 16. Steering gear; 17. Tightening plate; 18. Reinforcing strip; 19. Baffle; 20. Square column; 21. Protective cover. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0034] Refer to Figure 1-3, An embodiment provided by the present utility model: A liquid level alarm device for an infusion pressure bag, including an infusion pressure bag 1. A round tube 2 is connected to the bottom of the infusion pressure bag 1. An infusion bag 3 is arranged inside the infusion pressure bag 1. An infusion tube 4 is installed at the bottom of the infusion bag 3. The bottom of the infusion tube 4 passes through the round tube 2 and extends to the bottom of the round tube 2. A non-contact liquid level sensor one 5 is installed at the bottom of the front side of the infusion pressure bag 1. The rear side of the non-contact liquid level sensor one 5 contacts the surface of the infusion bag 3. A fixing ring 6 is fixedly connected to the surface of the non-contact liquid level sensor one 5. The rear side of the fixing ring 6 is fixedly connected to the surface of the infusion pressure bag 1. By the auxiliary fixing of the non-contact liquid level sensor one 5 through the fixing ring 6, it can prevent the non-contact liquid level sensor one 5 from falling off during long-term use. A non-contact liquid level sensor two 7 is installed on the left side of the surface of the round tube 2. Both sides of the bottom of the round tube 2 are fixedly connected with connecting plates 8. The bottom of the connecting plates 8 is fixedly connected with a square sleeve 9. The square sleeve 9 is sleeved on the surface of the infusion tube 4. Reinforcing strips 18 are fixedly connected to both the top and the bottom of the surface of the square sleeve 9. By strengthening the structure of the square sleeve 9 through the reinforcing strips 18, it can prevent the square sleeve 9 from deforming during long-term use. Baffles 19 are installed on both the top and the bottom of the front side of the square sleeve 9 through elastic hinges. By blocking the infusion tube 4 with the baffles 19, it can prevent the infusion tube 4 from detaching from the inside of the square sleeve 9. A square column 20 is fixedly connected to the top of the inner cavity of the square sleeve 9. By limiting the pressing plate 17 through the square column 20, it can prevent the pressing plate 17 from moving excessively. Liquid level normal indicator strips 10 are fixedly connected to both the top of the front side and the rear side of the infusion pressure bag 1. Replacement indicator strips 11 are fixedly connected to both the bottom of the front side and the rear side of the infusion pressure bag 1. The liquid level normal indicator strips 10 and the replacement indicator strips 11 are both used in cooperation with the non-contact liquid level sensor one 5. The replacement indicator strips 11 are used in cooperation with the non-contact liquid level sensor two 7. Protective covers 21 are sleeved on the surfaces of the non-contact liquid level sensor one 5 and the non-contact liquid level sensor two 7. The surfaces of the protective covers 21 are fixedly connected to the surfaces of the infusion pressure bag 1 and the round tube 2 respectively. By protecting the non-contact liquid level sensor one 5 and the non-contact liquid level sensor two 7 through the protective covers 21, it can prevent them from being damaged by collision.

[0035] Refer to Figure 1-3, a limiting component is arranged inside the circular tube 2. The limiting component includes a V-shaped plate 12 which is arranged inside the circular tube 2. Elastic pieces 13 are fixedly connected to the four corners on the right side of the V-shaped plate 12, and the right sides of the elastic pieces 13 are fixedly connected to the inner wall of the circular tube 2. By pushing the infusion tube 4 to continuously contact with the non-contact liquid level sensor II 7 through the V-shaped plate 12, it can prevent the infusion tube 4 from shaking and affecting the liquid level monitoring. Slide bars 14 are fixedly connected to the four corners on the right side of the V-shaped plate 12. The right sides of the slide bars 14 penetrate to the right side of the circular tube 2, and limiting plates 15 are fixedly connected to the right sides of the slide bars 14. By positioning the V-shaped plate 12 through the slide bars 14, it can prevent the V-shaped plate 12 from shaking.

[0036] Refer to Figure 3-5 , a pressing component is installed inside the square sleeve 9. The pressing component includes a servo motor 16 which is installed at the top of the rear side of the square sleeve 9. The output end of the servo motor 16 extends into the square sleeve 9 and is movably connected to the inner wall of the square sleeve 9. A pressing plate 17 is fixedly connected to the output end of the servo motor 16. The servo motor 16 is used in cooperation with the non-contact liquid level sensor II 7. Through the mutual cooperation of the non-contact liquid level sensor II 7, the servo motor 16 and the pressing plate 17, the infusion tube 4 can be closed when the liquid level is too low to solve the problem that air will enter the human body through the infusion tube 4 after the liquid is finished.

[0037] Working principle: The user first passes the infusion tube 4 through the inside of the infusion pressure bag 1, the circular tube 2 and the square sleeve 9. The elastic piece 13 pushes the infusion tube 4 to contact with the non-contact liquid level sensor II 7 through the V-shaped plate 12. Then the infusion bag 3 and the infusion tube 4 are connected and placed into the infusion pressure bag 1. When the infusion is carried out by pressurizing through the infusion pressure bag 1, the non-contact liquid level sensor I 5 continuously monitors the liquid level inside the infusion bag 3. When the liquid level inside the infusion bag 3 is normal, the liquid level normal indicator bar 10 is in a constantly lit state. The non-contact liquid level sensor II 7 simultaneously detects the liquid level cut-off of the infusion tube 4. When the liquid in the infusion bag 3 is finished and the infusion tube 4 has a liquid level cut-off, the non-contact liquid level sensor II 7 starts the replacement indicator bar 11 and the servo motor 16. The replacement indicator bar 11 emits light to give a prompt to the operator. The output end of the servo motor 16 drives the pressing plate 17 to rotate clockwise. When the pressing plate 17 rotates, it can cooperate with the square sleeve 9 to squeeze and close the infusion tube 4 to prevent the air inside the infusion tube 4 from entering the human body.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A liquid level alarm device for an infusion pressure bag, comprising an infusion pressure bag (1), characterized in that: The bottom of the infusion pressure bag (1) is connected to a circular tube (2). An infusion bag (3) is arranged inside the infusion pressure bag (1). An infusion tube (4) is installed at the bottom of the infusion bag (3). The bottom of the infusion tube (4) passes through the circular tube (2) and extends to the bottom of the circular tube (2). A non-contact liquid level sensor one (5) is installed at the bottom of the front side of the infusion pressure bag (1). The rear side of the non-contact liquid level sensor one (5) is in contact with the surface of the infusion bag (3). A fixing ring (6) is fixedly connected to the surface of the non-contact liquid level sensor one (5). The rear side of the fixing ring (6) is fixedly connected to the surface of the infusion pressure bag (1). A non-contact liquid level sensor two (7) is installed on the left side of the surface of the circular tube (2). Both sides of the bottom of the circular tube (2) are fixedly connected with connecting plates (8). The bottom of the connecting plate (8) is fixedly connected with a square sleeve (9). The square sleeve (9) is sleeved on the surface of the infusion tube (4). Liquid level normal indicator strips (10) are fixedly connected to the top of the front side and the rear side of the infusion pressure bag (1). Replacement indicator strips (11) are fixedly connected to the bottom of the front side and the rear side of the infusion pressure bag (1). The liquid level normal indicator strip (10) is used in cooperation with the non-contact liquid level sensor one (5). The replacement indicator strip (11) is used in cooperation with the non-contact liquid level sensor two (7). A limiting component is arranged inside the circular tube (2). A pressing component is installed inside the square sleeve (9).

2. The liquid level alarm device of an infusion pressure bag according to claim 1, wherein: The limiting component includes a V-shaped plate (12). The V-shaped plate (12) is arranged inside the circular tube (2). Elastic pieces (13) are fixedly connected to the four corners on the right side of the V-shaped plate (12). The right sides of the elastic pieces (13) are fixedly connected to the inner wall of the circular tube (2).

3. The liquid level alarm device of an infusion pressure bag according to claim 2, characterized in that: Slide rods (14) are fixedly connected to the four corners on the right side of the V-shaped plate (12). The right sides of the slide rods (14) penetrate through the right side of the circular tube (2). A limiting plate (15) is fixedly connected to the right sides of the slide rods (14).

4. The liquid level alarm device of an infusion pressure bag according to claim 1, characterized in that: The pressing component includes a servo motor (16). The servo motor (16) is installed at the top of the rear side of the square sleeve (9). The output end of the servo motor (16) extends into the square sleeve (9) and is movably connected to the inner wall of the square sleeve (9). A pressing plate (17) is fixedly connected to the output end of the servo motor (16). The servo motor (16) is used in cooperation with the non-contact liquid level sensor two (7).

5. The liquid level alarm device of an infusion pressure bag according to claim 1, characterized in that: Reinforcing strips (18) are fixedly connected to the top and the bottom of the surface of the square sleeve (9).

6. The liquid level alarm device of an infusion pressure bag according to claim 1, characterized in that: Baffles (19) are installed at the top and the bottom of the front side of the square sleeve (9) through elastic hinges.

7. The liquid level alarm device of an infusion pressure bag according to claim 1, wherein: A square column (20) is fixedly connected to the top of the inner cavity of the square sleeve (9).

8. The liquid level alarm device of an infusion pressure bag according to claim 1, characterized in that: Protective covers (21) are sleeved on the surfaces of the non-contact liquid level sensor one (5) and the non-contact liquid level sensor two (7). The surfaces of the protective covers (21) are fixedly connected to the surfaces of the infusion pressure bag (1) and the circular tube (2) respectively.

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