Digital Peristaltic Pump
Flow range:0.0053-6000ml/min
2.Basic peristaltic pump:LabM series
Flow range:0.0053-3100ml/min
3.Industrial peristaltic pump
Speed range:0.1-600rpm
Description
Technical Parameters
Digital peristaltic pump is an advanced liquid transfer equipment, which combines the working principle of peristaltic pump with digital control technology. It is a kind of peristaltic pump that realizes flow regulation and precise delivery through digital control. It utilizes rollers to alternately squeeze and release the elastic hose, thereby creating negative pressure inside the hose and driving continuous fluid flow.
Working principle:
The motor drives the roller to rotate, the roller in the process of rotating around the motor shaft, squeeze the pump tube is also rotating, in order to reduce the surface of the roller and the pump tube surface friction. The gap between the roller and the pump head casing is less than two times the wall thickness of the pump tube, thus squeezing the pump tube and squeezing the air or liquid in the tube in the direction of the roller rolling. The roller continues to roll forward, because the pump tube is elastic, the roller is no longer squeezing the pump tube area will resume deformation. As the pump tube returns to its rounded shape, negative pressure builds up around the area, drawing in the upstream liquid or gas. The next roller arrives and draws liquid into the area and squeezes it back again. The cycle continues, allowing for continuous liquid or gas delivery.
Parameter
Main features
Digital control:
Digital peristaltic pump through the built-in digital control system, you can realize the flow of accurate adjustment and real-time monitoring. Users can easily set and adjust the pump speed, flow rate and other parameters through the keyboard, touch screen or computer and other external devices.
High accuracy:
Due to the use of digital control technology, the equipment can achieve high precision flow transmission.Its flow control accuracy is usually up to ± 1% or even higher, to meet a variety of high-precision liquid transportation needs.
Non-pollution:
When the fluid is transported, the fluid only comes into contact with the hose and does not come into contact with other parts of the pump body.Therefore, it is particularly suitable for conveying corrosive, viscous or toxic liquids, avoiding the pollution and corrosion problems that may arise from traditional pump equipment.
Easy to maintain:
The hose can be easily replaced without complicated cleaning procedures.At the same time, its digital control system is also easy for users to troubleshoot and routine maintenance.
Details to be noted
The following aspects should be paid attention to in flow calibration：
1. Precise control of drug delivery
Infusion Pumps:
Digital peristaltic pumps are used as the core component of infusion pumps to precisely control the rate of drug delivery. With the built-in digital control system, healthcare professionals can easily set and adjust the infusion rate to ensure that the drugs enter the patient's body at a constant rate.
Infusion pumps are widely used in many departments such as intensive care, operating rooms, pediatrics, etc., providing safe and effective patient treatment.
Drug Infusion System:
In the process of chemotherapy, targeted therapy and other processes, it can accurately control the infusion speed and dosage of chemotherapeutic drugs, reduce the side effects on patients and improve the therapeutic effect.
In addition, it can also be used for the infusion of antibiotics, nutrient solutions, etc., to ensure that the concentration of drugs in the body is stable and improve the therapeutic effect.
2. the supply of nutrient solution
Enteral nutrition pump:
They are used as the power source of enteral nutrition pumps, which are used to enter the nutrition solution into the patient's body through the gastrointestinal route such as nasogastric tube. By precisely controlling the infusion speed and dose of nutritional solution, it can meet the nutritional needs of patients and promote their recovery.
Enteral nutrition pumps are widely used in a number of departments such as intensive care, gastroenterology, surgery, etc., providing important nutritional support for patients who cannot eat on their own.
Bioreactor:
They are used to uniformly supply nutrient solution and maintain a stable culture environment during cell culture and fermentation. By precisely controlling the delivery speed and flow rate of the nutrient solution, it can ensure that cells grow and multiply under optimal conditions, and improve the yield and quality of biological products.
Precise sample delivery and separation in liquid chromatography
use liquid chromatography, combined with them for precise control of sample delivery, to separate and quantitatively analyze specific components in a complex mixture in order to improve the accuracy and reliability of the analysis results.
Experimental equipment and materials:
- High Performance Liquid Chromatograph (HPLC)
- Digital peristaltic pump
- Chromatographic column (select the appropriate type and specification according to the target compounds)
- Mobile phase (composed of solvent A and solvent B with adjustable ratio)
- Sample solution (mixture to be measured)
- Injection needle
- Chromatography workstation and data processing software.
Experimental steps:
System Preparation:
- Make sure the HPLC system, digital peristaltic pump and chromatography workstation are in good working condition.
- According to the experimental requirements, select the appropriate column and install it in the HPLC system.
- Prepare the mobile phase, ensure that the ratio of solvent A and solvent B is accurate, and after degassing to reduce bubble interference.
Settings：
- Connect it to the mobile phase delivery line of the HPLC system.
- The speed of the peristaltic pump is set via the digital control panel or software to accurately control the speed and flow rate of the mobile phase. The speed of rotation should be set according to the specifications of the column, the viscosity of the mobile phase and the separation efficiency required for the experiment.
- Start the peristaltic pump and check whether the mobile phase passes through the column stably and continuously.
Sample preparation and injection:
Use the injection needle to accurately aspirate a certain amount of sample solution.
Inject the sample into the system at the autosampler or manual injection valve of the HPLC system.
Chromatographic Separation and Data Acquisition:
01
Start the HPLC system's pump and detector to begin the chromatographic separation process.
It precisely controls the delivery of the mobile phase to ensure that the sample is effectively separated on the column.
02
The separated components enter the detectors (e.g., UV detector, fluorescence detector, etc.) in turn, generating the corresponding signals.
The chromatography workstation collects and processes these signals to generate a chromatogram.
Data analysis:
01
The chromatogram is analyzed using the chromatography workstation or data processing software.
Based on the information of retention time and peak area of the chromatographic peaks, the components in the sample are analyzed qualitatively and quantitatively.
02
By comparing the chromatograms under different conditions, the impact of the precise control of it on the accuracy and reliability of the analytical results was assessed.
Experimental results and analysis:
01
By precisely controlling its rotational speed, stable transport of mobile phase and effective sample separation are realized.
02
The clear peak shape and good separation of the components on the chromatogram indicate that it plays a key role in liquid chromatography analysis.
The quantitative analysis results were accurate and reliable, in line with the experimental expectations.
Conclusion
This experiment successfully used it in the liquid chromatography system to achieve the precise delivery and separation of samples, and improve the accuracy and reliability of the analysis results. The stability and accuracy of it is crucial for liquid chromatography analysis and is one of the key factors to ensure the success of the experiment. In the future, it will continue to play an important role in more complex analytical tasks.
The maintenance of peristaltic pump dispenser control system is the key to ensure its stable operation and prolong its service life. The following are some suggestions for the maintenance of the peristaltic pump distributor control system:
specific application cases
Enteral nutrition pumps are widely used in many departments, such as intensive care (ICU), gastroenterology, surgery, etc., providing important nutritional support for patients who cannot eat on their own.
1. Application cases in intensive care unit (ICU)
01
In ICU, enteral nutrition pumps are often used for nutritional support of critically ill patients. These patients are unable to eat on their own due to their serious condition, and they need to infuse nutrient solution through enteral nutrition pumps to meet their body needs.
02
A hospital ICU had conducted a clinical observation on 60 critically ill patients, in which 30 patients in the observation group were continuously infused with nutrient solution using enteral nutrition pumps, while 30 patients in the control group were fed by syringe injection in divided doses.
The results showed that the patients in the observation group had a lower incidence of complications such as diarrhea, reflux aspiration, infection, blood glucose disorders, and gastric tube blockage than those in the control group, and their nutritional status improved more quickly, with a higher cure rate.
2. Application cases in gastroenterology
01
In gastroenterology, enteral nutrition pump is often used to treat patients with postoperative gastroparesis syndrome (PGS). Postoperative gastroparesis syndrome is one of the early complications after gastric cancer and various abdominal surgeries, which is characterized by delayed gastric emptying, weak gastric peristalsis and other symptoms. Infusion of nutrient solution through enteral nutrition pump and combined with digestive fluid collection and re-infusion treatment can effectively improve the nutritional status of patients and promote the recovery of gastric function.
02
The gastroenterology department of a hospital had conducted a therapeutic study on six postoperative gastroparesis patients, who were left with jejunal nutrition tube and treated with combined enteral nutrition pump infusion of nutrient solution and digestive fluid collection and transfusion therapy after dietary abstinence, continuous gastrointestinal decompression, and gastrointestinal dynamics drugs. The results showed that all patients recovered and were discharged from the hospital, and none of them had recurrent gastroparesis.
3. Application Case of Surgery
01
In surgery, the application of enteral nutrition pump is equally wide. Especially for surgical patients who need to fast for a long time or cannot eat on their own, enteral nutrition pump can provide stable and continuous nutritional support and promote the recovery of patients.
02
Gastric cancer patient Lao Qin, whose esophagus was damaged due to surgery and could not eat by mouth, could only rely on enteral nutrition pump to inject nutrient solution through jejunostomy. After a period of treatment, Lao Qin's nutritional status has been improved and his quality of life has been improved.
03
After surgery, some patients may have complications such as intestinal obstruction and intestinal fistula, resulting in the inability to eat. At this time, enteral nutrition pump can be used as an important means of nutritional support to help patients through the difficult times.
4. Application cases in other departments
01
In neurology, enteral nutrition pump is often used for nutritional support of comatose patients with cerebral hemorrhage. These patients are unable to eat due to impaired consciousness and need to be infused with nutrient solution via enteral nutrition pumps to maintain life.
02
In pediatrics, enteral nutrition pumps are often used for premature babies, low-birth-weight babies and other newborns who need special nutritional support. By precisely controlling the infusion speed and dosage of nutritional solution, the growth and development needs of newborns can be met.
03
In summary, enteral nutrition pumps are widely used in many departments such as intensive care, gastroenterology, surgery, etc., providing important nutritional support for patients who cannot eat on their own. By precisely controlling the infusion speed and dose of nutritional solution, it can meet the individualized nutritional needs of patients and promote their recovery.
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