US Patent 7857805 Ratcheting luer lock connector

According to one aspect of the invention, a fluid carrying connector comprising a luer lock connector is provided. At least one projection is defined on, or extending from, a surface of the luer lock connector. A shroud is moveably positioned with respect to the luer lock connector. The shroud comprises at least one projection that is rotatably positionable with the projection of the luer lock connector. In one rotational direction of the shroud, the projection of the shroud rotates the projection of the luer lock connector in the rotational direction. In an opposite rotational direction of the shroud, the projection of the shroud does not rotate the projection of the luer lock connector in the opposite rotational direction.