In medical testing equipment, the body fixation and inspection of microfluidic chips and biosensor chips, as well as their automated loading, unloading, and handling, all rely on a stable, clean, and compact micro vacuum source. The fixation and inspection station requires the vacuum pump to smoothly press the chip onto the reference chuck, ensuring positioning accuracy for optical scanning or probe testing, while preventing pump vibration or oil contamination from affecting the chip surface and test results. The automated loading/unloading station, on the other hand, demands a vacuum source with fast response, frequent start-stop capability, and long-term maintenance-free operation to match the production line cycle.
In the medical field, NIDEC micro diaphragm pumps have been widely used in clinical testing equipment such as medical biochemistry/hematology analyzers, IVD in vitro diagnostic devices, and fully automatic chemiluminescence immunoassay analyzers, performing key tasks including waste liquid discharge, reagent aspiration, pressurization, and maintaining negative pressure balance. Made with food-grade/medical-grade materials, these pumps feature ultra-quiet operation, long service life, and maintenance-free performance, perfectly meeting the stringent requirements of medical testing equipment for cleanliness, reliability, and 24/7 continuous operation. As a power solution specifically designed for such scenarios, NIDEC diaphragm pumps deliver a vacuum level of −40 kPa or higher and a flow rate of ≥1.1 L/min, while maintaining low vibration and low noise, with a service life exceeding 3,000 hours. Notably, NIDEC diaphragm pumps can achieve the same maximum vacuum level at different rotational speeds (see figure below). This unique characteristic provides great flexibility: it allows rapid establishment of the required vacuum, or maintaining the same suction force at lower speeds with reduced noise, thereby significantly extending the pump's service life.
