Qosina Corporation

Qosina Corporation is a global supplier of stock components for the medical device, diagnostic, and pharmaceutical industries. Engineers and OEM manufacturers turn to Qosina for off-the-shelf parts that shorten development timelines and simplify prototyping — connectors, tubing accessories, check valves, stopcocks, spikes, caps, and fluid-handling fittings sourced from a single catalog rather than assembled piecemeal across multiple vendors.

What sets this line apart for design and procurement teams is availability at every stage. Qosina stocks components in quantities that support both bench-top prototyping and scaled production, so a device developer can order a handful of Luer fittings to validate a concept and later commit to volume without re-qualifying a new source. Many parts are offered with documentation and material certifications relevant to regulated device work, which matters when a component becomes part of a submission or a controlled build.

Typical buyers here are working through questions of compatibility and fit — whether a barbed connector matches a given tubing ID, whether a Luer lock will mate with an existing set, or which valve orientation suits a fluid path. Because these are standardized components, they integrate with common tubing and connection systems, reducing custom tooling and the lead times that come with it.

Qosina components serve fluid management, IV and infusion assemblies, diagnostic instruments, and laboratory setups across the healthcare supply chain. To explore comparable manufacturers and diagnostic equipment suppliers in our catalog, browse American Diagnostic Corporation and American Screening Corporation.