Transfusion packaging bag
By incorporating a pressure differential trigger switch structure into the infusion packaging bag, the infusion set can be automatically flushed during medication changes, overcoming the shortcomings of manual flushing in existing technologies and improving user experience and safety.
Patent Information
- Application Number
- CN202422483897.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-10-14
AI Technical Summary
In existing technologies, the infusion set needs to be manually flushed when changing medications during intravenous therapy, which is time-consuming, increases the risk of infection, wastes medical resources, and increases the economic burden on patients.
Design an infusion packaging bag with an internal compartment divided into two chambers. A pressure differential trigger switch structure is set on the separator, so that when the liquid in the first chamber is emptied, the pressure differential automatically opens, and the liquid in the second chamber automatically flows into the infusion tube for flushing.
It achieves an automated flushing process without human intervention, improving the user experience, reducing the risk of infection and waste of resources, and reducing the economic burden on patients.
Smart Images
Figure CN223654180U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of medical auxiliary instrument, concretely relates to a transfusion packaging bag. BACKGROUND
[0002] Transfusion therapy is the main route of systemic administration, and continuous infusion is very common in clinical practice. After a bag of liquid is transfused, the nurse removes the transfusion bag, connects the next bag of liquid to the transfusion device after disinfection, and continues to infuse. This inevitably causes the liquid in the transfusion device (the previous drug) to directly contact the next bag of liquid (drug). Since many mixed contacts can cause chemical reactions, the drug efficacy is reduced, and the health is harmed, so most drugs (especially chemotherapy drugs and antibiotics) require separate infusion, that is, one drug is dissolved in one bag (bottle) of liquid, and even the liquid without drugs is used to flush the tube to ensure that it is separated from other drugs. At present, the method adopted in clinical practice is that after one kind of liquid is transfused, the nurse will infuse 5-10 ml of 100 ml of empty saline to ensure that the drug in the transfusion device is all returned to the patient's body, and then the next bag (bottle) of drug is connected to continue the treatment, so as to completely separate the contact between the previous and the next drugs. This method not only wastes time, but also increases the risk of infection and the waste of medical resources, and also increases the unnecessary economic burden on the patient.
[0003] In summary, the prior art lacks an automatic flushing transfusion packaging. CONTENT OF THE UTILITY MODEL
[0004] In view of the above analysis, the embodiments of the utility model solve the above technical problems.
[0005] The utility model provides a kind of transfusion packaging bag, it is characterized in that, including:
[0006] Bag body, the bag body inside has partition, the bag body inside is isolated as first cavity and second cavity by the partition;Passageway is equipped on the partition, and the passageway connects the first cavity and the second cavity;
[0007] Pressure difference trigger switch structure, the pressure difference trigger switch structure is configured to make the passageway close, when the first cavity and the second cavity have preset air pressure difference, make the passageway open.
[0008] In some embodiments, the first cavity bottom is equipped with medicine adding pipe and medicine delivery pipe, the medicine adding pipe is used to input drug into the first cavity, and the medicine delivery pipe is used to be connected with human body through infusion tube;
[0009] The liquid in the second cavity is physiological saline for flushing infusion tube.
[0010] In some embodiments, the volume of the first cavity is between 100 ml and 250 ml.
[0011] In some embodiments, the pressure difference trigger switch structure comprises a sealing plug hole arranged on the partition strip, the sealing plug hole is in sealing connection with the partition strip, and the sealing plug hole communicates the first cavity and the second cavity.
[0012] In some embodiments, the pressure difference trigger switch structure further comprises a plug head, the plug head is arranged in the sealing plug hole to isolate the first cavity and the second cavity.
[0013] The plug head and the sealing plug hole are configured to be able to overcome the friction between the plug head and the sealing plug hole when the first cavity and the second cavity have a preset air pressure difference, so that the first cavity and the second cavity are communicated.
[0014] In some embodiments, the sealing plug hole has a wedge-shaped hole, and a large-end aperture of the wedge-shaped hole is close to the first cavity.
[0015] In some embodiments, an end of the plug head close to the second cavity has a stopper, the length of the stopper is greater than the small-end aperture of the wedge-shaped hole, and the stopper is located in the second cavity.
[0016] In some embodiments, the pressure difference trigger switch structure further comprises a rupturable membrane, the rupturable membrane is in sealing connection with the sealing plug hole.
[0017] The rupturable membrane is configured to form a passage between the first cavity and the second cavity when the first cavity and the second cavity have a preset air pressure difference.
[0018] In some embodiments, the pressure difference trigger switch structure comprises a diaphragm valve, the diaphragm valve is located in the sealing plug hole to separate the first cavity and the second cavity.
[0019] In some embodiments, the material of the partition strip comprises polypropylene or modified polypropylene.
[0020] The above embodiments of the utility model have at least the following advantages:
[0021] The utility model discloses an infusion packaging bag structure that can automatically flush the pipe, which comprises a bag body, a separation strip, a first cavity, a second cavity, a pressure difference trigger switch structure, a sealing plug, a plug, a stop portion, a hanging hole, a first scale, a second scale, a medicine adding pipe and an infusion pipe. BRIEF DESCRIPTION OF DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art based on these drawings.
[0023] Figure 1 The utility model provides a structure diagram of infusion packaging bag that can automatically flush the pipe.
[0024] Figure 2 For Figure 1 The local amplification schematic diagram of A area in the middle;
[0025] Figure 3 For Figure 2 The switch opening state schematic diagram.
[0026] Reference signs:
[0027] 1, bag body; 11, separation strip; 12, first cavity; 13, second cavity; 2, pressure difference trigger switch structure; 21, sealing plug; 22, plug; 221, stop portion; 3, hanging hole; 4, first scale; 5, second scale; 6, medicine adding pipe; 7, infusion pipe. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical scheme and advantages of the utility model embodiments clearer, the technical scheme in the utility model embodiments will be described clearly and completely in the following with the drawings in the utility model embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments. It should be noted that the embodiments and the features in the embodiments in the present disclosure can be combined, separated, interchanged and / or rearranged without conflict. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of the present application.
[0029] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, to the extent that the terms "comprising," "including," "containing," and / or "having" and variations thereof are used herein, such terms are intended to be inclusive in a manner similar to the term "comprising" as that term is interpreted when employed as a transitional term in a claim. It is also noted that the terms "substantial," "approximately," and other similar terms, as used herein, are used in their normal, ordinary sense and are not used in an absolute sense.
[0030] The embodiments of the present application will be described in detail with reference to the drawings, so that those skilled in the art can more clearly understand and implement the present application.
[0031] The utility model provides a kind of infusion packaging bag of automatic pipe, as shown in figure Figure 1 It includes:
[0032] Bag body 1, the bag body 1 inside has partition strip 11, the bag body 1 inside is isolated as first cavity 12 and second cavity 13 by the partition strip 11;The passage is equipped on the partition strip 11, and the passage connects the first cavity 12 and the second cavity 13;
[0033] Pressure difference trigger switch structure 2, the pressure difference trigger switch structure 2 is configured so that the passage is closed, and when the first cavity 12 and the second cavity 13 have preset air pressure difference, the passage is opened;
[0034] The first cavity 12 and the second cavity 13 both have liquid and gas, the first cavity 12 and the second cavity 13 are both closed cavity when the pressure difference trigger switch structure 2 is closed, so that when the liquid in the first cavity 12 is emptied, air pressure is reduced to form the preset air pressure difference that opens the pressure difference trigger switch structure 2.
[0035] The utility model discloses an embodiment through separating infusion packaging bag into two cavities, and setting pressure difference trigger switch structure 2 on the separating strip 11, when the infusion ends, because the liquid in the first cavity 12 is discharged, the gas volume increases and the air pressure reduces, and then the pressure difference between the first cavity 12 and the second cavity 13 gradually increases, until the liquid in the first cavity 12 is emptied, reaches the preset air pressure difference that can make pressure difference trigger switch structure 2 open, and then the liquid in the second cavity 13 flows out and enters the infusion tube, realizes the function of automatic flushing infusion tube, and this process does not need medical staff and patient monitoring, improves the use experience.
[0036] In some embodiments, the preset air pressure difference and the air pressure in the first cavity 12 and the air pressure in the second cavity 13 are represented as:
[0037] x = (P2-kP1);
[0038] Wherein x represents the preset air pressure difference, P2 represents the air pressure in the second cavity, P1 represents the air pressure in the first cavity when the liquid is not discharged, and k represents the gas volume ratio when the liquid in the first cavity is not discharged.
[0039] In some embodiments, the first cavity 12 is provided with a medicine adding pipe 6 and a medicine delivery pipe 7, the medicine adding pipe 6 is used for inputting medicine into the first cavity 12, and the medicine delivery pipe 7 is used for connecting with the human body through the infusion device.
[0040] The liquid in the second cavity 13 is physiological saline for flushing the infusion tube.
[0041] In some embodiments, the value of k is between 1:15 and 1:8. Specifically, the gas volume ratio can be adjusted according to the volume of the first cavity 12, the actual liquid volume demand of infusion and the air pressure difference required for the opening of the pressure difference trigger switch structure 2, so as to meet the basic demand of infusion and form the preset air pressure difference.
[0042] In some embodiments, the volume of the first cavity 12 is between 100ml and 250ml. Preferably, the volume of the second cavity 13 is between 10ml and 50ml.
[0043] It should be understood that in the utility model embodiment, when the pressure difference trigger switch structure 2 is not opened, the first cavity 12 is a sealed infusion packaging bag for containing infusion liquid, and has a certain amount of gas, and the same, the second cavity 13 also has gas, and the initial air pressure between the first cavity 12 and the second cavity 13 in the initial state can make the pressure difference trigger switch structure 2 maintain the balance state of closing.
[0044] When in use, the medicine liquid can be injected into the first cavity 12 through the medicine injection tube at the bottom, and then the infusion device is inserted into the infusion tube to infuse the human body. During the process, no external air enters the first cavity 12 to avoid pollution of the medicine liquid. When the medicine liquid is continuously outputted until emptying, according to the ideal gas state equation PV = nRT, it can be known that the gas pressure is inversely proportional to the volume when the amount of substance of the gas in the first cavity 12 is unchanged. When the liquid in the first cavity 12 is emptied, the volume of the gas in the first cavity 12 is expanded by k times, so the gas pressure is reduced to k times of the initial gas pressure. At this time, the pressure difference triggered by the pressure of the first cavity 12 and the second cavity 13 causes the switch structure 2 to open.
[0045] In some embodiments, the pressure difference triggered switch structure 2 includes a sealing plug hole 21 arranged on the separation strip 11, the sealing plug hole 21 is in sealing connection with the separation strip 11, and the sealing plug hole 21 communicates the first cavity 12 and the second cavity 13.
[0046] In some embodiments, the pressure difference triggered switch structure 2 further includes a plug 22 arranged in the sealing plug hole 21 to isolate the first cavity 12 and the second cavity 13.
[0047] The plug 22 and the sealing plug hole 21 are configured to overcome the friction between the plug 22 and the sealing plug hole 21 when the first cavity 12 and the second cavity 13 have a preset pressure difference, so as to communicate the first cavity 12 and the second cavity 13. Preferably, the sealing plug hole 21 can be made of rubber material with a certain elasticity, so as to adjust the friction with the plug 22.
[0048] In some embodiments, as shown in Figure 2 and Figure 3 The sealing plug hole 21 has a wedge-shaped hole, and the larger end of the hole diameter of the wedge-shaped hole is close to the first cavity 12. Preferably, the plug 22 can also be a wedge-shaped plug with a matching shape. Through the wedge-shaped hole, the pressure difference triggered switch structure 2 can only be opened in one direction to the first cavity 12, avoiding the pressure difference triggered switch structure 2 being opened to the second cavity 13 due to the pressure of the bag body 1 in other non-use scenarios.
[0049] In some embodiments, the plug 22 has a stopper 221 near one end of the second cavity 13, the length of the stopper 221 is greater than the small end aperture of the wedge-shaped hole, and the stopper 221 is located in the second cavity 13. Preferably, in some embodiments, the stopper 221 can be made of elastic material, and during product production, the stopper 221 can be bent to facilitate insertion into the sealing plug opening 21, and after entering the second cavity 13, the stopper 221 expands elastically to avoid the plug 22 from moving to the bottom to block the infusion tube, as shown in Figure 3
[0050] In some embodiments, the pressure difference trigger switch structure 2 further comprises a breakable membrane, which is in sealing connection with the sealing plug opening 21.
[0051] The breakable membrane is configured to form a passage between the first cavity 12 and the second cavity 13 when a preset air pressure difference exists between the first cavity 12 and the second cavity 13.
[0052] The use of a breakable membrane has the advantages of simple structure, more controllable pressure difference required for triggering the switch, and lower cost.
[0053] In some embodiments, the pressure difference trigger switch structure 2 comprises a diaphragm valve, which is located in the sealing plug opening 21 to separate the first cavity 12 and the second cavity 13. Preferably, the pressure difference trigger switch structure 2 can also use other finished valve bodies or switch structures triggered by pressure.
[0054] In some embodiments, the material of the separation strip 11 comprises polypropylene or modified polypropylene. The separation strip 11 is made of polypropylene or modified polypropylene material and is made by a multi-layer co-extrusion film process. The polypropylene or modified polypropylene material serves as the inner layer of the infusion bag requiring terminal sterilization, can withstand the requirements of terminal sterilization, can effectively separate the two chambers of liquid, and the material can be the same as the bag body 1.
[0055] Preferably, in some embodiments, the bag body 1 is further provided with a hanging hole 3 for facilitating hanging.
[0056] Preferably, in some embodiments, a first scale 4 is vertically arranged on one side of the first cavity 12. A second scale 5 is vertically arranged on one side of the second cavity 13. The first scale 4 and the second scale 5 facilitate reading of the liquid capacity in the cavities.
[0057] The above specific embodiments explain the purpose, technical scheme and beneficial effects of the present application in further detail, and it should be understood that the above description is only a specific embodiment of the present application and is not used to limit the protection scope of the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims
1. An infusion packaging bag, characterized in that, include: The bag body has an internal partition strip that divides the interior of the bag body into a first cavity and a second cavity; the partition strip has a channel that connects the first cavity and the second cavity; A pressure differential trigger switch structure is configured to close the channel and open the channel when there is a preset pressure difference between the first cavity and the second cavity.
2. The infusion packaging bag according to claim 1, characterized in that: The bottom of the first cavity is provided with a drug addition tube and a drug delivery tube. The drug addition tube is used to introduce drugs into the first cavity, and the drug delivery tube is used to connect to the human body through an infusion tube. The liquid in the second cavity is physiological saline used to flush the infusion tube.
3. The infusion packaging bag according to claim 1, characterized in that: The volume of the first cavity is between 100ml and 250ml.
4. The infusion packaging bag according to claim 1, characterized in that: The pressure differential trigger switch structure includes a sealing plug on the separator bar, the sealing plug being sealed to the separator bar, and the sealing plug communicating with the first cavity and the second cavity.
5. The infusion packaging bag according to claim 4, characterized in that: The pressure differential trigger switch structure also includes a plug, which is fitted into the sealing port to isolate the first cavity and the second cavity; The plug and the sealing plug are configured to overcome the friction between the plug and the sealing plug so that the first cavity and the second cavity can communicate when there is a preset air pressure difference between the first cavity and the second cavity.
6. The infusion packaging bag according to claim 5, characterized in that: The sealing plug has a wedge-shaped hole, with the larger end of the wedge-shaped hole closer to the first cavity.
7. The infusion packaging bag according to claim 6, characterized in that: The end of the plug near the second cavity has a stop portion, the length of which is greater than the small end diameter of the wedge-shaped hole, and the stop portion is located within the second cavity.
8. The infusion packaging bag according to claim 4, characterized in that: The pressure differential trigger switch structure also includes a ruptureable membrane, which is sealed to the sealing plug. The ruptureable membrane is configured to form a channel between the first cavity and the second cavity when there is a preset pressure difference between the first cavity and the second cavity.
9. The infusion packaging bag according to claim 4, characterized in that: The pressure differential trigger switch structure includes a diaphragm valve located in the sealing plug to separate the first cavity and the second cavity.
10. The infusion packaging bag according to claim 1, characterized in that: The material of the separator strip includes polypropylene or modified polypropylene.