Qosina offers an extensive line of valves including check valves, relief valves, hemostasis valves, luer activated valves, tuohy borst adapters and drain valves. In a variety of sizes and material options, Qosina can provide the right valve for any application. Hemostasis valves and tuohy borst adapters prevent leakage and backflow. Injection and pressure monitoring can be performed through the sidearm of a hemostasis valve Y connector. One-handed hemostasis valves feature an easy push/pull apparatus that allows for a single-handed process for opening and closing the valve. Qosina also offers a double hemostasis valve, which allows for easier manipulation and control of interventional devices. Our relief valves are used to control or limit the pressure in a system. The relief valve is designed or set to open at a predetermined set pressure. When the set pressure is exceeded, the valve is forced open and a portion of the fluid or gas is diverted through an auxiliary route. Qosina is a worldwide supplier of thousands of stock OEM disposable components to the medical and pharmaceutical industries, offering connectors, luers, clamps, adapters, clips, valves, needle hubs, stopcocks, hemostasis valves, tuohy borst adapters, surgical swabs, and spikes. Qosina operates an ISO 9001, ISO 13485 and ISO 14001 registered facility.