Liquid storage infusion device
By adding air pressure to the protective bottle during the infusion process of the reservoir bag, the problem of reduced output pressure of the drug solution is solved, the stability and accuracy of the drug solution infusion volume are achieved, and the treatment effect is ensured.
Patent Information
- Application Number
- CN202422489944.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2034-10-15
AI Technical Summary
During the continuous delivery of drug solution by a mechanical infusion pump, the deformation of the reservoir decreases, resulting in a decrease in drug solution pressure, which affects the drug solution flow rate and infusion accuracy.
By adding air pressure into the protective bottle when the liquid storage bag transports the liquid medicine outward, the output pressure of the liquid medicine is kept stable, and the inflation bag and air inlet valve structure are used to ensure the accuracy of the liquid medicine infusion amount.
The stability of the drug liquid output pressure is achieved, the accuracy of the drug liquid infusion amount is ensured, and the treatment effect is improved.
Smart Images
Figure CN223429791U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an infusion device, in particular to a liquid storage and infusion device. Background Art
[0002] In clinical treatment, mechanical infusion pumps typically pressurize a drug solution into a reservoir, causing the reservoir to deform and generate pressure, squeezing the solution out. However, as the drug solution continues to be delivered, the volume of the solution in the reservoir decreases, and the deformation of the reservoir decreases. This results in a continuous decrease in the pressure exerted by the reservoir on the drug solution, resulting in a decrease in the delivered drug solution pressure and flow rate. This affects the accuracy of the infused solution and, consequently, the patient's therapeutic efficacy. Utility Model Content
[0003] In order to solve the above technical deficiencies, the utility model provides a liquid storage and infusion device, which can replenish air pressure in the protective bottle during the process of the liquid storage bag transporting the liquid medicine outward, so as to keep the pressure of the liquid medicine output outward basically stable and ensure the accuracy of the liquid medicine infusion amount.
[0004] The utility model discloses a liquid storage and infusion device, comprising a protective bottle and a bottle cap with a capsule core, wherein the protective bottle and the bottle cap with the capsule core are sealed and connected, a liquid storage capsule is arranged on the capsule core in the protective bottle, a three-way joint is arranged on the capsule core on the bottle cap, a pressure gauge is connected to the three-way joint, a three-way drug-adding valve is arranged on the three-way drug-adding valve, a drug outlet pipeline is arranged on the three-way drug-adding valve, a flow-stop clamp is arranged on the drug outlet pipeline, an inflation tube is connected to the protective bottle, an inflation bag is arranged at the end of the inflation tube, an inflation switch is arranged on the inflation tube, and an air inlet valve is arranged on the inflation bag.
[0005] A filter is provided on the medicine outlet pipe.
[0006] An O-ring seal is provided between the bottle cap with the capsule core and the bottle protector.
[0007] A silicone ring is provided on the bottle cap with the capsule core to connect the liquid storage capsule and the capsule core.
[0008] The liquid storage and infusion device obtained by the utility model can inflate air into the protective bottle through the inflatable bag when the deformation of the liquid storage bag caused by the liquid storage bag transporting the liquid medicine outward is small, so as to increase the pressure in the protective bottle, thereby ensuring that the pressure of the liquid storage bag on the internal liquid medicine remains basically unchanged, the pressure of the liquid medicine output is stable, and the accuracy of the liquid medicine infusion amount can be ensured. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 This is a schematic diagram of the structure of the utility model when no liquid medicine is added;
[0010] Figure 2 for Figure 1 A partial enlarged schematic diagram;
[0011] Figure 3 The structure diagram of the utility model after adding liquid medicine is shown. DETAILED DESCRIPTION
[0012] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model are described in detail as follows in combination with the drawings and preferred embodiments.
[0013] Embodiment 1
[0014] As shown in Figure 1 , Figure 2 The utility model discloses a kind of liquid storage infusion devices, including bottle guard 11 and take capsule core bottle cap 8, the bottle guard 11 is sealedly connected between take capsule core bottle cap 8, be provided with liquid storage sac 7 on the capsule core 16 in bottle guard 11, be provided with three-way joint 6 on the capsule core 16 on bottle cap, pressure gauge 5 is connected on three-way joint 6, three-way medicine adding valve 12 is provided on three-way joint 6, outlet medicine pipeline 14 is provided on three-way medicine adding valve 12, flow stop clamp 13 is provided on outlet medicine pipeline 14, inflation tube 4 is connected on bottle guard 11, inflation sac 2 is provided at the end of inflation tube 4, inflation switch 3 is provided on inflation tube 4, inlet valve 1 is provided on inflation sac 2.
[0015] Among them, bottle guard 11 is sealedly connected between take capsule core bottle cap 8, take capsule core bottle cap 8 is used to block the bottle mouth of bottle guard 11, take capsule core bottle cap 8 is including a bottle cap and a capsule core 16, and the two are integrated structure. A three-way joint 6 is provided on bottle cap, one end of three-way joint 6 is connected with capsule core 16, one end of three-way joint 6 is connected with pressure gauge 5, the other end of three-way joint 6 is connected with three-way medicine adding valve 12, and pressure gauge 5 is used to detect the liquid medicine pressure in three-way joint 6. The capsule core 16 in bottle guard 11 is provided with liquid storage sac 7, and outlet medicine pipeline 14 is provided on three-way medicine adding valve 12. When adding medicine, flow stop clamp 13 on outlet medicine pipeline 14 is closed, high-pressure liquid medicine is injected on three-way medicine adding valve 12, and the liquid medicine enters the inside of capsule core 16 and liquid storage sac 7 through three-way joint 6, so that liquid storage sac 7 is inflated. And inflation tube 4 is provided on bottle guard 11, inflation switch 3 and inflation sac 2 are provided on inflation tube 4. Among them, inflation sac 2 is provided with inlet valve 1, inlet valve 1 adopts diaphragm type structure, which is the existing known product, such as inflation sac 2 on mercury sphygmomanometer, and the specific structure is not described in detail. In natural state, inlet valve 1 is communicated with the outside world, so when liquid medicine is injected in liquid storage sac 7 to inflate liquid storage sac 7, the inflation sac 2 is inflated, and the inflation sac 2 is inflated. Figure 3As shown, the air inside the protective bottle 11 is discharged outward through the inflation tube 4 and the inflation bladder 2. During this process, the diaphragm inside the air inlet valve 1 is in a natural state, facilitating air discharge. Because the connection between the inflation tube 4 and the protective bottle 11 is sealed, and the connection between the core-carrying bottle cap 8 and the protective bottle 11 is also sealed, the interior of the protective bottle 11 is an independent space. During the infusion process, the amount of liquid inside the reservoir 7 gradually decreases, and the deformation of the reservoir 7 decreases. At this time, the pressure on the pressure gauge 5 drops. If needed, the inflation switch 3 can be opened to inflate and pressurize the protective bottle 11. The compressed air inside the protective bottle 11 exerts pressure on the reservoir 7, which in turn acts on the liquid inside, increasing the pressure of the liquid and maintaining it within a certain pressure range. This process continues until the infusion of the liquid in the reservoir 7 is complete. This process effectively maintains the pressure of the liquid in the reservoir 7 on the liquid, keeping the pressure of the infused liquid basically stable, thereby maintaining the stability of the infused liquid volume and ensuring the therapeutic effect.
[0016] The three-way dosing valve 12 is provided with a cap for closing the dosing port. The three-way dosing valve 12 is a known product and its specific structure will not be described in detail.
[0017] A filter 15 is provided on the medicine discharging pipe 14. The medicine liquid is filtered by the filter 15 to ensure safety.
[0018] An O-ring 9 is provided between the bottle cap with capsule core 8 and the bottle guard 11 for sealing. The bottle cap with capsule core 8 and the bottle guard 11 are sealed with an O-ring 9 to ensure a sealing effect therebetween.
[0019] A silicone ring 10 is provided on the bottle cap with the capsule core 8 for connecting the liquid storage capsule 7 and the capsule core 16 .
[0020] The liquid storage capsule 7 and the capsule core 16 are sealed by a silicone ring 10 , and the connection form is the existing known form.
[0021] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.
[0022] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to the interaction between two elements. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.
[0023] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.
[0024] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simplified modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. A liquid storage and infusion device, characterized by: It includes a protective bottle and a bottle cap with a capsule core, the protective bottle and the bottle cap with a capsule core are sealed together, a liquid storage capsule is provided on the capsule core in the protective bottle, a three-way joint is provided on the capsule core on the bottle cap, a pressure gauge is connected to the three-way joint, a three-way dosing valve is provided on the three-way dosing valve, a drug outlet pipe is provided on the three-way dosing valve, a flow stop clamp is provided on the drug outlet pipe, an inflation tube is connected to the protective bottle, an inflation bag is provided at the end of the inflation tube, an inflation switch is provided on the inflation tube, and an air inlet valve is provided on the inflation bag.
2. A liquid storage and infusion device according to claim 1, characterized in that: A filter is provided on the medicine outlet pipe.
3. The liquid storage and infusion device according to claim 1, wherein: An O-ring seal is provided between the bottle cap with the capsule core and the bottle protector.
4. The liquid storage and infusion device according to claim 1, wherein: A silicone ring is provided on the bottle cap with the capsule core to connect the liquid storage capsule and the capsule core.