Total vein nutrition bag

Abstract

The utility model discloses a total vein nutrition bag, relates to nutrition bag field, the nutrition bag is provided with at least one connecting pipe, the connecting pipe is provided with a transparent PH detection bag, the PH detection bag is provided with PH detection test paper, one end of the connecting pipe is communicated with the PH detection bag, and the other end of the connecting pipe is communicated with the nutrition bag. In the infusion process, the PH value of a nutrient solution in the nutrition bag can be rapidly detected multiple times, operation is easy and convenient, and rapid operation and use are facilitated.

Description

Technical Field

[0001] The utility model relates to the field of total intravenous nutrition bags, in particular to a total intravenous nutrition bag. Background Art

[0002] Disposable total intravenous nutrition infusion bags are often used in clinical practice. They can also be called three-liter bags. They are mainly composed of a liquid storage bag, a drug inlet line, and an infusion line. They are an important means of nutritional support for critically ill patients, terminal patients, gastrointestinal surgery patients and other patients who cannot eat orally for various reasons.

[0003] Studies have shown that 27% of catheter blockages are caused by non-thrombotic factors, primarily drug precipitation or deposition of macromolecular solutes (such as lipids). Lipid deposition is common in patients receiving intravenous hypertrophic nutrition. pH is crucial for the stability of fat emulsions. A pH below 5.0 can lead to loss of stability, while a pH above 6.6 can easily lead to the precipitation of large amounts of calcium phosphate. Therefore, monitoring pH can effectively mitigate the risk of catheter blockage and disability.

[0004] Domestic and international intravenous infusion standards recommend administering medications with a pH less than 5 or greater than 9 through a central vein. Normally, human plasma pH is between 7.35 and 7.45. Excessively acidic or alkaline medications can interfere with the normal metabolism and function of the vascular endothelium, damage endothelial cells, and cause phlebitis, drug extravasation, and, in severe cases, skin or tissue damage and necrosis. Therefore, monitoring the pH of total intravenous nutrition bags can effectively mitigate the risk of adverse drug extravasation events.

[0005] In clinical practice, if medical staff want to perform pH value testing, they need to squeeze the intravenous nutrition solution out of the intravenous nutrition infusion bag and perform the test. This operation is cumbersome and easily contaminates the intravenous nutrition solution in the intravenous nutrition infusion bag, making it inconvenient to operate and use. Utility Model Content

[0006] One purpose of the utility model is to provide a total intravenous nutrition bag. By arranging a pH detection bag on the nutrition bag, the nutrient solution in the nutrition bag is squeezed into the pH detection bag for pH detection, and the pH value of the nutrition solution is quickly and conveniently obtained.

[0007] This purpose is achieved by adopting the following technical solutions:

[0008] A total intravenous nutrition bag is provided with at least one connecting tube, which is provided with a transparent pH test bag. The pH test bag contains pH test strips. One end of the connecting tube is connected to the pH test bag, and the other end of the connecting tube is connected to the nutrition bag. Each connecting tube corresponds to a pH test bag. Since the nutrition bag is provided with at least one connecting tube, the pH value can be tested once before infusion and once during infusion. This is more conducive to multiple pH value tests at different time periods during the infusion process, improving the accuracy of the test and facilitating long-term use.

[0009] At the same time, the pH detection of this structure is checked by pH test paper, which is easy to operate and can quickly obtain the pH value.

[0010] During use, intravenous nutrient solution is injected into the nutrient bag. An infusion tube is provided at the lower end of the nutrient bag, and a connecting tube is connected to the nutrient bag. When the pH value needs to be tested, the nutrient solution is squeezed into the connecting tube and enters the pH test bag through the connecting tube for testing.

[0011] Preferably, the pH test bag includes a first cavity and a second cavity, the first cavity and the second cavity are detachably connected, a pH test strip is placed in the first cavity, and the second cavity is detachably connected to a colorimetric card, which can be placed in the second cavity or detachably connected outside the second cavity. One end of the connecting tube is connected to the first cavity. When the nutrient solution enters the first cavity of the pH test bag, the color of the pH test strip in the first cavity changes. Medical staff compare the color of the pH test strip in the first cavity with the colorimetric card in the second cavity to obtain the pH value of the nutrient solution. The operation is simple and convenient.

[0012] Furthermore, to prevent the nutrient solution from entering the pH detection bag when the pH value does not need to be obtained, a first regulating valve is provided in the connecting pipe of the present device. The first regulating valve is used to connect or disconnect the first cavity with the connecting pipe. When the pH value needs to be tested, the medical staff adjusts the first regulating valve to connect the first cavity with the connecting pipe, allowing the nutrient solution to enter the first cavity. When the pH value does not need to be tested, the medical staff adjusts the first regulating valve to disconnect the first cavity with the connecting pipe, preventing the nutrient solution from entering the first cavity.

[0013] Furthermore, a second regulating valve is provided in the connecting pipe. The second regulating valve is used to connect or disconnect the nutrition bag with the connecting pipe. The second regulating valve is located between the nutrition bag and the first regulating valve.

[0014] During use, in order to prevent a large amount of nutrient solution from entering the pH detection bag and flowing back into the nutrient bag after entering, the device is simultaneously provided with a first regulating valve and a second regulating valve. During use, the first regulating valve is first closed and the second regulating valve is opened to allow the nutrient solution to enter between the first regulating valve and the second regulating valve in the connecting pipe. Then, the second regulating valve is closed so that the nutrient solution is located between the first regulating valve and the second regulating valve in the connecting pipe. The first regulating valve is opened so that the nutrient solution located between the first regulating valve and the second regulating valve in the connecting pipe enters the first cavity in the pH detection bag to achieve detection.

[0015] Among them, the pH test paper detects the pH value, and the required content is relatively small. In addition, the first regulating valve and the second regulating valve on the connecting pipe are at a certain distance. The amount of nutrient solution in this section of the connecting pipe is sufficient for the pH test paper in the pH test bag to perform pH detection.

[0016] The first regulating valve can be of various structures, as long as it can achieve connection or disconnection of the connecting pipe. The first regulating valve of this device is preferably an eccentric hemispherical valve, which includes a first valve seat and a valve ball. A first rotating member is provided on the outside of the connecting pipe, connected to the valve ball, and configured to drive the valve ball to rotate, thereby closing or opening the opening of the first valve seat. During operation, medical personnel can control the opening or closing of the first regulating valve by rotating the first rotating member on the outside of the connecting pipe.

[0017] The second regulating valve can be of various structures, as long as it can realize the connection or disconnection of the connecting pipe. The second regulating valve of the present device is preferably a butterfly valve, which includes a second valve seat and a disc. A second rotating member is provided on the outside of the connecting pipe, and the second rotating member is connected to the disc. The second rotating member is used to drive the disc to rotate so that the opening of the second valve seat is closed or opened. When operating, medical staff can control the opening or closing of the second regulating valve by rotating the second rotating member. When the butterfly valve rotates, the disc on it rotates a certain angle along the direction of the diameter. The circular opening on the second valve seat is not fully open, so the amount and speed of the nutrient solution entering the connecting pipe between the first regulating valve and the second regulating valve can be effectively controlled, so that it can flow in slowly, avoiding the accumulation of too much nutrient solution in the connecting pipe between the first regulating valve and the second regulating valve, and avoiding operation waste or nutrient solution backflow into the nutrient bag.

[0018] Furthermore, a one-way valve is provided in the connecting pipe, and is located between the first regulating valve and the pH detection bag. The one-way valve allows the nutrient solution to only flow into the pH detection bag from the connecting pipe, and not back into the connecting pipe from the pH detection bag, thereby avoiding contamination of the nutrient solution.

[0019] Preferably, the inner diameter of the connecting tube is 3 mm. An adhesive layer is provided on the outer side of the connecting tube, and the adhesive layer is detachably connected to the nutrient bag. When pH value testing is not performed, the connecting tube can be bent and attached to the nutrient bag for easy storage.

[0020] Furthermore, the other end of the connecting tube is detachably connected to the pH detection bag. After the pH detection bag on the connecting tube performs pH detection, the pH detection bag can be separated from the pH detection bag through the connecting tube and the used pH detection bag can be removed.

[0021] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0022] The utility model relates to a total intravenous nutrition bag. During the infusion process, the device can quickly detect the pH value of the nutrient solution in the nutrition bag multiple times. The operation is simple and convenient, and the device is easy to operate and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the structure;

[0025] Figure 2 Schematic diagram of the structure of the first rotating member and the valve ball;

[0026] Figure 3 It is a structural diagram of a butterfly valve;

[0027] Figure 4 This is a structural diagram of the connecting pipe when the first regulating valve and the second regulating valve are both in the closed state;

[0028] Figure 5 This is a structural diagram of the connecting pipe when the first regulating valve is open and the second regulating valve is closed.

[0029] Markings and corresponding parts names in the accompanying drawings:

[0030] 1- nutrient bag, 2- connecting tube, 3- pH detection bag, 4- first cavity, 5- second cavity, 6- one-way valve, 7- first valve seat, 8- valve ball, 9- first rotating member, 10- second rotating member, 11- second valve seat, 12- disc. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The schematic implementation methods of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0032] In the description of the present invention, it should be understood that the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0033] Example 1

[0034] A connecting tube 2 is provided on the nutrient bag 1, and a transparent pH detection bag 3 is provided on the connecting tube 2. The pH detection bag 3 is provided with a pH detection test paper. One end of the connecting tube 2 is connected to the pH detection bag 3, and the other end of the connecting tube 2 is connected to the nutrient bag 1.

[0035] In some embodiments, the connecting tube 2 is located at the upper end of the nutrient bag 1. When the nutrient solution enters the nutrient bag 1 through the infusion tube at the lower end of the nutrient bag 1, the nutrient bag 1 always keeps the connecting tube placed in the upper end direction, and the nutrient solution in the nutrient bag 1 does not contact the connecting tube.

[0036] When an infusion is needed, the nutrient bag is turned upside down so that the connecting tube is at the bottom. The nutrient solution enters the pH detection bag 3 through the connecting tube and comes into contact with the pH detection paper to complete the pH value test of the nutrient solution. After the test is completed, the pH value is determined to be in compliance. If it is in compliance, the nutrient bag is hung on the storage rack so that it remains upright. After placement, the patient can be infused.

[0037] Example 2

[0038] like Figure 1 As shown, the nutrient bag 1 is provided with three connecting tubes 2. The first cavity and the second cavity are detachably connected. A pH test paper is placed in the first cavity. The second cavity is detachably connected to a colorimetric card. The colorimetric card can be placed in the second cavity or detachably connected outside the second cavity. One end of the connecting tube 2 is connected to the first cavity 4. When the nutrient solution enters the first cavity 4 in the pH detection bag 3 through the connecting tube, the nutrient solution acts on the pH test paper in the first cavity 4, causing the pH test paper to change color. Medical staff can determine the pH value of the nutrient solution by observing the color of the pH test paper and the color of the colorimetric card.

[0039] In some embodiments, the pH detection bag 3 is small in size and light in weight, and is convenient for long-term use.

[0040] Example 3

[0041] In the above embodiment, a first regulating valve is provided in the connecting pipe 2, and the first regulating valve is used to connect or disconnect the first cavity 4 with the connecting pipe 2. The first regulating valve can be of various structures as long as it can connect or disconnect the connecting pipe.

[0042] Preferably, the first regulating valve is an eccentric hemispherical valve, which includes a first valve seat 7 and a valve ball 8. A first rotating member 9 is provided on the outside of the connecting pipe 2. The first rotating member 9 is connected to the valve ball 8. The structure of the first rotating member 9 and the valve ball 8 is as follows: Figure 2 As shown, the first rotating member 9 is used to drive the valve ball 8 to rotate, so that the opening of the first valve seat 7 is closed or opened.

[0043] In some embodiments, a second regulating valve is provided in the connecting tube 2. The second regulating valve is used to connect or disconnect the nutrition bag 1 with the connecting tube 2. The second regulating valve is located between the nutrition bag 1 and the first regulating valve. The second regulating valve can have various structures as long as it can connect or disconnect the connecting tube.

[0044] Preferably, the second regulating valve is a butterfly valve, and the structure of the butterfly valve is as follows: Figure 3 As shown, the butterfly valve includes a second valve seat 11 and a disc 12. The opening of the second valve seat 11 is circular. A second rotating member 10 is provided on the outside of the connecting pipe 2. The second rotating member 10 is connected to the disc 12. The second rotating member 10 is used to drive the disc 12 to rotate, so that the opening of the second valve seat 11 is closed or opened.

[0045] When using, such as Figure 4 As shown, the first regulating valve and the second regulating valve are both in the closed state, so the nutrient solution in the nutrient bag cannot enter the first cavity 4 through the connecting tube. The nutrient bag can be placed horizontally, and the nutrient solution will not enter the first cavity 4 through the connecting tube.

[0046] When pH value detection is required, the second regulating valve on one of the connecting pipes is opened, the first regulating valve is closed, the nutrient bag is turned upside down, and the nutrient solution passes through the second regulating valve on the connecting pipe and enters between the first regulating valve and the second regulating valve on the connecting pipe. The second regulating valve is closed, and part of the nutrient solution used for pH value detection is located between the first regulating valve and the second regulating valve of the connecting pipe. The first regulating valve is opened, as shown in FIG. Figure 5 As shown, part of the nutrient solution used to detect the pH value enters the first cavity through the first regulating valve and contacts the pH test paper, causing the pH test paper to change color. Medical staff judge the pH value of the nutrient solution by observing the color of the pH test paper and the color of the color comparison card.

[0047] The device is provided with a plurality of connecting tubes, each of which corresponds to a pH detection test. Therefore, when in use, medical staff can test the nutrient solution in the nutrient bag multiple times and at multiple points, which is more conducive to long-term use.

[0048] Example 4

[0049] In the above embodiment, a one-way valve 6 is provided within the connecting tube 2, located between the first regulating valve and the pH detection bag 3. When the nutrient solution enters the first cavity 4 through the first regulating valve, the one-way valve 6 prevents the nutrient solution from flowing back out of the first cavity 4 and into the nutrient bag, further protecting the nutrient solution and improving its efficiency.

[0050] In some embodiments, the inner diameter of the connecting tube 2 is 3 mm. An adhesive layer is provided on the outside of the connecting tube 2, which is detachably connected to the nutrient bag 1. When not performing pH testing, the connecting tube 2 can be bent and attached to the nutrient bag 1 for easy storage. The other end of the connecting tube 2 is detachably connected to the pH testing bag 3. After performing pH testing, the pH testing bag 3 attached to the connecting tube 2 can be separated from the pH testing bag 3 through the connecting tube 2 and removed after use.

[0051] In some embodiments, the connecting pipe 2 , the first regulating valve and the second regulating valve are all made of medical silicone material.

[0052] The terms "first," "second," and "third" used herein are merely used to distinguish corresponding components for clarity of description and are not intended to limit any order or emphasize importance. In addition, the term "connected" used herein, unless otherwise specified, may refer to a direct connection or an indirect connection via other components.

[0053] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only a specific implementation method of the utility model and is not intended to limit the scope of protection of the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A total intravenous nutrition bag, characterized in that: At least one connecting tube (2) is provided on the nutrient bag (1), a transparent pH detection bag (3) is provided on the connecting tube (2), a pH detection paper is provided in the pH detection bag (3), one end of the connecting tube (2) is connected to the pH detection bag (3), and the other end of the connecting tube (2) is connected to the nutrient bag (1).

2. A total intravenous nutrition bag according to claim 1, characterized in that: A first regulating valve is provided in the connecting pipe (2), and the first regulating valve is used to connect or disconnect the pH detection bag (3) with the connecting pipe (2).

3. A total intravenous nutrition bag according to claim 2, characterized in that: The first regulating valve is an eccentric hemispherical valve, which comprises a first valve seat (7) and a valve ball (8). A first rotating member (9) is provided on the outside of the connecting pipe (2). The first rotating member (9) is connected to the valve ball (8). The first rotating member (9) is used to drive the valve ball (8) to rotate, so that the opening of the first valve seat (7) is closed or opened.

4. A total intravenous nutrition bag according to claim 2, characterized in that: A one-way valve (6) is provided in the connecting pipe (2), and the one-way valve (6) is located between the first regulating valve and the pH detection bag (3).

5. A total intravenous nutrition bag according to claim 2, characterized in that: A second regulating valve is provided in the connecting pipe (2), and the second regulating valve is used to connect or disconnect the nutrition bag (1) and the connecting pipe (2). The second regulating valve is located between the nutrition bag (1) and the first regulating valve.

6. A total intravenous nutrition bag according to claim 5, characterized in that: The second regulating valve is a butterfly valve, which includes a second valve seat (11) and a disc (12). A second rotating member (10) is provided on the outside of the connecting pipe (2). The second rotating member (10) is connected to the disc (12). The second rotating member (10) is used to drive the disc (12) to rotate, so that the opening of the second valve seat (11) is closed or opened.

7. A total intravenous nutrition bag according to claim 1, characterized in that: The inner diameter of the connecting pipe (2) is 3 mm.

8. A total intravenous nutrition bag according to claim 1, characterized in that: The pH detection bag (3) comprises a first cavity (4) and a second cavity (5), the first cavity (4) and the second cavity (5) are detachably connected, a pH detection test paper is placed in the first cavity (4), the second cavity (5) is detachably connected to the colorimetric card, and one end of the connecting tube (2) is connected to the first cavity (4).

9. A total intravenous nutrition bag according to claim 1, characterized in that: An adhesive layer is provided on the outer side of the connecting tube (2), and the adhesive layer is detachably connected to the nutrition bag (1).

10. A total intravenous nutrition bag according to claim 1, characterized in that: The other end of the connecting tube (2) is detachably connected to the pH detection bag (3).

Images