Applications and functions of dispensing valves in the medical industry
Release time:
2025-04-22 07:00
Source:
Leiko Technology
I. Medical Industry Needs Dispensing Valves Demand
The medical industry's demand for dispensing valves is mainly reflected in the following aspects:
1. High-precision coating: Many components in medical devices require precise coating of sealants, bioadhesives, etc., to ensure sealing and biocompatibility. The high-precision control capability of dispensing valves can meet this need, reduce material waste, and improve production efficiency.
2. Adaptability to sterile environments: The production process of medical products usually needs to be carried out in a sterile environment. Dispensing valves and their supporting systems need to have good cleanability and easy-to-disinfect characteristics to avoid cross-contamination.
3. Fluid compatibility: The medical field uses a wide variety of fluid materials. Dispensing valves need to have a wide range of fluid compatibility to ensure stable delivery and precise coating of different materials.
4. Automation and integration: With the popularization of automated production lines, dispensing valves need to be easily integrated into existing automated systems to achieve efficient and continuous production processes.
II. Dispensing Valves Application Examples in the Medical Industry
1. Medical device assembly: In the assembly process of surgical instruments, diagnostic instruments, and other medical equipment, dispensing valves are used to fix sensors, circuit boards, lenses, and other precision components to ensure the stability of the equipment structure and the reliability of its functions.
2. Biochip manufacturing: Biochips are important tools in biomedical research. Dispensing valves are used in the chip manufacturing process to precisely coat biological samples, reagents, etc., which is crucial to the sensitivity and accuracy of the chip.
3. Medical packaging sealing: Medical product packaging requires extremely high sealing to prevent microbial invasion. Dispensing valves are used on packaging lines to apply sealants to ensure the integrity of the packaging and extend the shelf life of the product.
4. Laboratory automation equipment: In laboratories in the fields of life sciences and drug research and development, dispensing valves are widely used in automated operations such as sample processing and reagent dispensing, improving experimental efficiency and accuracy.
III. Dispensing Valves Key Functions
1. Precise metering: Dispensing valves, through precise valve bodies and control systems, achieve micro-precise metering of fluid materials, meeting the high precision requirements of medical equipment.
2. Flexible control: Modern dispensing valves usually use electric, pneumatic, or piezoelectric drives, and can flexibly adjust the coating speed, pressure, and mode to adapt to the needs of different materials and processes.
3. Easy to clean and maintain: Considering the special requirements of the medical industry, the design of dispensing valves often emphasizes ease of disassembly and cleaning, as well as long-term stable operation, reducing downtime and maintenance costs.
4. Intelligent integration: With the development of Internet of Things technology, many dispensing valves are beginning to be equipped with sensors and intelligent control systems, which can monitor the fluid state in real time, adjust process parameters, and seamlessly connect with the upper management system to improve production efficiency and quality control levels.
Related News
How can daily maintenance help extend the service life of a valve body?
As a precision component that operates at high frequency, the precision dispensing valve requires scientific daily maintenance to extend its service life and maintain dispensing accuracy. Shenzhen Laike Technology has compiled the following key maintenance points for you: Daily cleaning is crucial and should not be overlooked. After finishing work, promptly remove any residual adhesive from the exterior of the valve body, especially around the nozzle and plunger area. Once cured, adhesive can cause blockages or wear, affecting subsequent use. It is recommended to gently wipe with a suitable cleaning solvent, taking care not to damage the seals. Regularly inspect sealing components—seals and other parts will naturally degrade over time during prolonged operation. We recommend checking their condition periodically based on usage frequency. If you notice signs of hardening or wear, replace these components promptly to prevent adhesive from seeping into the valve body and causing more serious damage.
The stringing issue during the dispensing process is often closely related to fluid properties, equipment parameters, and process settings. Drawing on years of industry experience, SZLKTE has compiled and optimized key points for you: Fluid temperature control is crucial. Proper heating can reduce the viscosity of the adhesive, improve its flowability, and minimize stringing and trailing. SZLKTE’s dispensing valves can be equipped with precision temperature-control modules to ensure that the fluid remains in a consistently stable working state. The back-suction parameters must be finely adjusted. The negative-pressure back-suction applied at the moment the glue dispensing stops can effectively cut off the adhesive flow, preventing dripping and stringing. We recommend gradually adjusting the amount and speed of back-suction according to the adhesive’s viscosity until you find the ideal balance.
SZLKTE takes a multi-dimensional approach to ensure zero errors and long service life for its products even under high-speed, continuous operation. The piezoelectric valve series employs piezoceramic actuation technology; its non-contact drive design eliminates mechanical wear common in traditional solenoid valves, enabling a service life of over one billion cycles. At the same time, these valves deliver millisecond-level response times, completely eliminating trailing and stringing issues. The needle valve KC-9870, on the other hand, features a specially engineered, wear-resistant material for its needle component, offering exceptional resistance to abrasion and corrosion. Even in industrial environments with prolonged operation, this valve maintains outstanding stability. Moreover, its components can be quickly disassembled and maintained, significantly reducing production downtime.
Contact Dispensing vs. Non-Contact Jetting Valves: How Should You Choose for Micron-Level Processes?
Contact dispensing involves the needle making physical contact with the substrate surface to apply the fluid. Its main advantage lies in its strong adaptability to high-viscosity fluids and relatively controllable dispensing process. However, since it requires coordinated movement along the Z-axis, the dispensing speed is limited. Additionally, there is a risk of the needle colliding with and damaging the workpiece or deforming the needle itself. Therefore, careful evaluation is necessary when applying this method in miniaturized packaging scenarios. In contrast, non-contact jetting valves use a driving mechanism to rapidly spray adhesive onto the workpiece surface without any physical contact between the needle and the substrate. This feature makes them ideally suited for substrates with uneven surfaces or those that are fragile. They excel in micron-scale processes such as bottom-fill applications for chips and precision coating. The jetting method eliminates the need for Z-axis movement, significantly boosting production efficiency while also avoiding common issues associated with contact dispensing, such as stringing and trailing.
The stability of the piezoelectric valve dispensing process directly determines product quality. Common issues such as uneven dispensing, stringing, and glue leakage can be effectively addressed through parameter adjustments and optimized matching. Laike’s piezoelectric valves support multi-level parameter adjustments, enabling precise matching of pressure, injection frequency, and nozzle aperture according to the specific characteristics of different fluids.
Blocking the hole is Piezoelectric valve The most common failures in dispensing operations are often caused by fluid solidification, residual impurities, and nozzle wear, which directly affect dispensing accuracy and efficiency. Given the structural characteristics of piezoelectric valves, these issues can be addressed in three steps: “diagnosis—cleaning—inspection.” First, stop the machine and visually inspect the nozzle for obvious glue deposits or foreign objects, determining whether the blockage is temporary or a persistent issue caused by nozzle wear.
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