Luerbased

Luerbased is a term used to describe devices and components that use Luer connectors as the primary interface for fluid transfer. The Luer system was developed in the late 19th century and is named after Dr. Hermann Adolf Luer. Luerbased interfaces are common in medical, veterinary, and laboratory settings, where a simple, conical fit is used to connect syringes, needles, catheters, and sample ports.

Two widely used Luer-based forms are Luer slip, a friction-fit connection, and Luer lock, a threaded, twist-to-secure connection. Luer-based fittings are typically made from plastics such as polypropylene and can be sterilized for single use or reused under appropriate conditions. They are designed to be compatible within a given system, though care must be taken to avoid cross-connecting with non-Luer interfaces.

International standards define the geometry and tolerances of Luer fittings to promote compatibility. ISO 594-1 and ISO 594-2 cover the Luer cone and Luer lock interfaces, respectively. In practice, many devices remain widely interchangeable, but the evolving landscape of patient safety has led to initiatives within the ISO 80369 family to reduce misconnections by separating low- and high-risk connectors.

Applications of Luerbased connectors include syringe and needle assemblies, infusion sets, sampling ports, and diagnostic adapters. Their advantages include simplicity, low cost, and wide availability. Limitations include the potential for misconnections with non-Luer systems and compatibility concerns across manufacturers and sterilization methods.