Methods and apparatus for selectively occluding the lumen of a needle

摘要: A fluid transfer device for parenterally transferring to and/or from a patient includes housing, needle, and an occlusion mechanism. The housing defines flow path is couplable reservoir. needle has distal end portion that configured be inserted into the proximal fluidically coupled of lumen therebetween. mechanism selectively controls between path. member movable first configuration where obstructed during insertion second unobstructed after been allowing or patient.