A switchable dual peristaltic pumping mechanism
Patent Information
- Application Number
- CN202522280406.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-28
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2035-10-28
AI Technical Summary
[0003]现有的蠕动泵送药装置，通过单个蠕动泵机械挤压软管实现药物连续输送，广泛应用于药物的移动、稀释、混匀和标定工作，其核心优势在于无污染、剪切力低，尤其适合输送敏感液体，然而单个蠕动泵的流量输出范围具有固定性，这一特性由泵的型号和泵管规格严格决定，用于高流量输送的蠕动泵，其设计初衷在于高效完成大体积液体的快速传输，当面临低流量精确输送需求时，这类泵便显得力不从心，难以实现微小流量的精准控制，进而影响送药的精度与稳定性
[0016]该可切换的双蠕动泵送药机构，采用第一蠕动泵与第二蠕动泵协同配合的工作模式，第一蠕动泵为高流量输送蠕动泵，具备大排量、高效率的特点，能够快速完成大量药液的输送任务，满足大规模用药或快速补液的需求，第二蠕动泵为低流量输送蠕动泵，确保了小剂量药液的精准投放，避免了药液浪费和剂量误差，同时连通管上的控流组件便于控制药液流向，既保证了高效输送，又实现了精确控制，为向药瓶内送药提供了更加灵活、可靠的送药方案。
Smart Images
Figure CN224864790U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of peristaltic pumping of medicine, and in particular to a switchable dual peristaltic pumping mechanism for medicine delivery. Background Technology
[0002] Peristaltic pumps are core devices in the field of modern precision drug delivery. They deliver medication by squeezing a flexible tubing with rollers. Because the fluid only contacts the tubing and there is no contamination, they are widely used for drug movement, dilution, mixing, and calibration. They are a key medical tool for achieving continuous intravenous micro-dose delivery and ensuring medication safety.
[0003] Existing peristaltic pump delivery devices achieve continuous drug delivery by mechanically squeezing a tubing with a single peristaltic pump. They are widely used in drug movement, dilution, mixing, and calibration. Their core advantages are no pollution and low shear force, making them particularly suitable for delivering sensitive liquids. However, the flow output range of a single peristaltic pump is fixed, a characteristic strictly determined by the pump model and tubing specifications. Peristaltic pumps designed for high-flow delivery are intended to efficiently complete the rapid transfer of large volumes of liquids. When faced with the need for precise delivery at low flow rates, these pumps become inadequate, struggling to achieve precise control of minute flow rates, thus affecting the accuracy and stability of drug delivery. Utility Model Content
[0004] The purpose of this invention is to provide a switchable dual peristaltic pumping mechanism to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a switchable dual peristaltic pump delivery mechanism includes a first peristaltic pump and a first conduit disposed inside the first peristaltic pump. A second peristaltic pump is disposed on the right side of the first peristaltic pump. A second conduit is disposed inside the second peristaltic pump. The upper ends of the first conduit and the second conduit are both connected to a connecting pipe. A connecting pipe is connected to the back of the connecting pipe.
[0006] A flow control component is provided on the connecting pipe. The flow control component is used to control the flow direction of the medicine liquid. The flow control component includes a first solenoid valve, which is installed on the connecting pipe.
[0007] The bottom of the first catheter and the second catheter are respectively fixedly connected to the first injection head and the second injection head.
[0008] A fixing block is fixedly sleeved on the outer peripheral wall of the first catheter and the second catheter. A limiting component is installed inside the fixing block, and the limiting component is used to limit the first injection head and the second injection head.
[0009] The limiting component includes:
[0010] The spring body has one end fixedly connected to the inner wall of the fixed block;
[0011] A one-way slider is slidably connected inside a fixed block, and the other end of the spring body is fixedly connected to the one-way slider;
[0012] The T-shaped control handle is fixedly connected to the one-way slider.
[0013] The unidirectional slider and the T-shaped control handle are manufactured as a single piece.
[0014] The connecting pipe and the connecting tube are manufactured as a single piece.
[0015] The technical effects and advantages of this utility model are as follows:
[0016] This switchable dual peristaltic pump delivery mechanism employs a collaborative working mode between a first peristaltic pump and a second peristaltic pump. The first peristaltic pump is a high-flow peristaltic pump with the characteristics of large displacement and high efficiency, which can quickly complete the delivery of large quantities of liquid medicine to meet the needs of large-scale medication or rapid fluid replenishment. The second peristaltic pump is a low-flow peristaltic pump, which ensures the accurate dispensing of small doses of liquid medicine, avoiding waste and dosage errors. At the same time, the flow control component on the connecting tube facilitates the control of the liquid medicine flow direction, ensuring both efficient delivery and precise control, providing a more flexible and reliable delivery solution for delivering medicine into vials. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the limiting component structure of this utility model.
[0019] In the diagram: 1. First peristaltic pump; 11. First conduit; 12. First injection head; 2. Second peristaltic pump; 21. Second conduit; 22. Second injection head; 3. Fixing block; 4. Connecting pipe; 41. Connecting pipe; 5. Flow control assembly; 51. First solenoid valve; 52. Second solenoid valve; 6. Limiting assembly; 61. Spring body; 62. One-way slider; 63. T-shaped control handle. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] This utility model provides, for example Figure 1 and Figure 2The illustrated switchable dual peristaltic pump delivery mechanism includes a first peristaltic pump 1. This first peristaltic pump 1, as a high-flow peristaltic pump, features large displacement and high efficiency, enabling it to quickly deliver large quantities of medication, meeting the needs of large-scale medication use or rapid fluid replenishment. The first peristaltic pump 1 also includes a first conduit 11, which serves as a channel for medication delivery, guiding the medication out of the pump. During medication delivery to the vial, when a large amount of liquid needs to be quickly filled, the first peristaltic pump 1 is activated, allowing it to rapidly deliver the medication from the source to the vial. When a peristaltic pump is working, the rotor drives the rollers mounted on it to make circular motions. When the rollers contact and gradually compress the elastic hose, the channel inside the hose narrows until it closes, sealing the liquid inside the hose between the two rollers. As the rotor continues to rotate, the compressed hose section carries the sealed liquid forward, squeezing the liquid from the inlet to the outlet. After the rollers leave the hose, the hose returns to its original shape due to its own elasticity, creating a negative pressure at the inlet to draw in new liquid. This cycle is repeated to achieve liquid delivery, and the flow rate can be controlled by adjusting the rotor speed, hose specifications, number of rollers, and spacing.
[0022] A second peristaltic pump 2 is installed on the right side of the first peristaltic pump 1. The second peristaltic pump 2 is a low-flow peristaltic pump that can ensure the accurate dispensing of small doses of medicine, avoiding medicine waste and dosage errors. When the second peristaltic pump 2 is activated in the final stage of filling the medicine bottle, the medicine can be slowly delivered according to the precise dosage requirements. The second peristaltic pump 2 is equipped with a second conduit 21, which is the channel for medicine delivery and guides the medicine to flow out of the pump. The upper ends of the first conduit 11 and the second conduit 21 are connected to a connecting pipe 4, and the back of the connecting pipe 4 is connected to a connecting pipe 41. The connecting pipe 41 is used to connect to the medicine source box. The medicine enters the first conduit 11 or the second conduit 21 through the connecting pipe 4, and then the medicine is delivered to the medicine bottle through the first injection head 12 or the second injection head 22.
[0023] A flow control component 5 is provided on the connecting pipe 4. The flow control component 5 is used to control the flow direction of the liquid medicine. The flow control component 5 includes a first solenoid valve 51 and a second solenoid valve 52. The first solenoid valve 51 and the second solenoid valve 52 are installed on the connecting pipe 4. By controlling the opening and closing of the solenoid valves, the liquid medicine can be selected to enter the first peristaltic pump 1 or the second peristaltic pump 2 through the connecting pipe 41 and the connecting pipe 4, so as to achieve precise bottling of the liquid medicine. When only the first peristaltic pump 1 is used to deliver the liquid medicine, the first solenoid valve 51 is opened and the second solenoid valve 52 is closed. The liquid medicine enters the first conduit 11 from the connecting pipe 41 and the connecting pipe 4. When it is necessary to switch to the second peristaltic pump 2, the first solenoid valve 51 is closed and the second solenoid valve 52 is opened. At the same time, closing both solenoid valves can stop the delivery of the liquid medicine.
[0024] The bottom of the first catheter 11 and the second catheter 21 are respectively fixedly connected to the first injection head 12 and the second injection head 22. The first injection head 12 and the second injection head 22 are the specific parts of the drug solution flowing out of the catheter, ensuring the smooth delivery of the drug solution.
[0025] A fixing block 3 is fixedly sleeved on the outer peripheral wall of the first conduit 11 and the second conduit 21. The fixing block 3 provides an installation position for the limiting component 6 and plays the role of fixing and supporting the conduit. The limiting component 6 is installed inside the fixing block 3. The limiting component 6 is used to limit the first injection head 12 and the second injection head 22 to prevent the first injection head 12 and the second injection head 22 from shaking or shifting during use, so as to ensure the stability and accuracy of drug delivery.
[0026] Limiting component 6 includes:
[0027] The spring body 61 has one end fixedly connected to the inner wall of the fixed block 3. The spring body 61 provides elastic force to the one-way slider 62 so that it can return to its original position.
[0028] One-way slider 62 is slidably connected to the fixed block 3. The other end of the spring body 61 is fixedly connected to the one-way slider 62. It can move under the action of the spring body 61 to limit the position of the first injection head 12 and the second injection head 22.
[0029] The T-shaped control handle 63 is fixedly connected to the one-way slider 62. The T-shaped control handle 63 allows the operator to manually control the movement of the one-way slider 62, thereby limiting and unlocking the first injection head 12 and the second injection head 22.
[0030] The unidirectional slider 62 and the T-shaped control handle 63 are manufactured as a single piece, ensuring the strength and stability of the structure.
[0031] The connecting pipe 4 and the connecting pipe 41 are integrally molded to ensure the sealing of the connection and the stability of the structure.
[0032] Example 1: This mechanism employs a cooperative working mode of a first peristaltic pump 1 and a second peristaltic pump 2. The first peristaltic pump 1, with its large displacement and high efficiency, can quickly complete the delivery of large quantities of medication, performing exceptionally well in scenarios requiring large-scale medication administration or rapid fluid replenishment. The second peristaltic pump 2, as a low-flow peristaltic pump, can precisely control the dispensing of small doses of medication, avoiding waste and dosage errors. This is crucial for the delivery of some drugs with extremely strict dosage requirements. Simultaneously, the flow control component 5 on the connecting pipe 4, through the first solenoid valve 51 and the second solenoid valve 52, can conveniently control the flow direction of the medication. When only the first peristaltic pump 1 is needed to deliver the medication, the flow can be controlled. Open the first solenoid valve 51 and close the second solenoid valve 52. The medicine enters the first conduit 11 from the connecting pipe 41 and the connecting pipe 4. When it is necessary to switch to the second peristaltic pump 2, close the first solenoid valve 51 and open the second solenoid valve 52. Closing both solenoid valves at the same time will stop the delivery of the medicine. The operator can flexibly choose which peristaltic pump to use for delivery according to actual needs. The design of the first injection head 12, the second injection head 22 and the limiting component 6 ensures the stability and accuracy of the medicine delivery. This medicine delivery mechanism provides a more flexible and reliable medicine delivery solution for delivering medicine into the medicine bottle, effectively improving the accuracy and stability of medicine delivery and meeting the medicine delivery needs in different scenarios.
[0033] Example 2: The limiting component 6 within the fixing block 3 enables the rapid fixing of the first injection head 12 and the second injection head 22. Align the first injection head 12 and the second injection head 22 with the medicine bottle to be filled with the liquid, and press the fixing block 3 downwards towards the slot on the worktable, so that the one-way slider 62 engages with the worktable, thereby limiting the first injection head 12 and the second injection head 22. To disassemble, simply snap the T-shaped control handle 63 inwards, causing the one-way slider 62 to compress the spring body 61, thus disengaging the one-way slider 62 from the slot in the worktable, and the fixing block 3 can then be removed.
[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A switchable dual peristaltic pump delivery mechanism, comprising a first peristaltic pump (1) and a first conduit (11) disposed within the first peristaltic pump (1), characterized in that, A second peristaltic pump (2) is provided on the right side of the first peristaltic pump (1). A second conduit (21) is provided inside the second peristaltic pump (2). The upper ends of the first conduit (11) and the second conduit (21) are connected to a connecting pipe (4). The back of the connecting pipe (4) is connected to a connecting pipe (41). A flow control component (5) is provided on the connecting pipe (4). The flow control component (5) is used to control the flow direction of the liquid medicine. The flow control component (5) includes a first solenoid valve (51) and a second solenoid valve (52). The first solenoid valve (51) and the second solenoid valve (52) are installed on the connecting pipe (4).
2. The switchable dual peristaltic pump delivery mechanism according to claim 1, characterized in that, The bottom of the first catheter (11) and the second catheter (21) are respectively fixedly connected to the first injection head (12) and the second injection head (22).
3. The switchable dual peristaltic pump delivery mechanism according to claim 2, characterized in that, A fixing block (3) is fixedly sleeved on the outer peripheral wall of the first catheter (11) and the second catheter (21). A limiting component (6) is installed inside the fixing block (3). The limiting component (6) is used to limit the first injection head (12) and the second injection head (22).
4. The switchable dual peristaltic pump delivery mechanism according to claim 3, characterized in that, The limiting component (6) includes: The spring body (61) has one end fixedly connected to the inner wall of the fixing block (3); One-way slider (62) is slidably connected to the fixed block (3), and the other end of the spring body (61) is fixedly connected to the one-way slider (62); The T-shaped control handle (63) is fixedly connected to the one-way slider (62).
5. A switchable dual-peristaltic pump delivery mechanism according to claim 4, characterized in that, The unidirectional slider (62) and the T-shaped control handle (63) are integrally molded.
6. The switchable dual peristaltic pump delivery mechanism according to claim 1, characterized in that, The connecting pipe (4) and the connecting pipe (41) are integrally formed.