Infusion needle vents are self-sealing components integrated into the sheaths of infusion needles. These vents allow air or gases to pass freely through the porous medium; however, upon contact with liquid, they activate a self-sealing mechanism that blocks fluid passage, thereby preventing unintended liquid flow. Infusion sets equipped with such needle vents enhance operational ease and safety, significantly improve nursing efficiency, reduce medication waste, and help prevent environmental contamination from drug residue.

POROYAL is dedicated to the research and development of powder sintered porous filter technology, establishing itself as a leading innovator in advanced porous material solutions.Titanium and plastic filters POROYAL engineers deliver high-value engineering solutions to address complex product design challenges across diverse industries, including petrochemical, oilfield, water treatment, food & beverage, pharmaceutical, chemical processing, medical devices, vacuum conveying, and other specialized applications.Metal porous filter Our expertise encompasses comprehensive liquid-solid and gas-solid separation technologies tailored to meet customer-specific requirements.At POROYAL, we function as an integrated enterprise comprising four specialized divisions—dedicated to the development of Metal Sintered Porous Filters, Plastic Sintered Porous Filters, Metal Fibers, and Medical & Laboratory filtration solutions. Metal Porous Filters Manufacturer
Through collaborative innovation, we engineer sustainable technologies that enhance performance, optimize efficiency, and deliver measurable success for our customers.China Plastic Porous Filtersr|super blog