Fluid diversion mechanism for bodily-fluid sampling

A device for parenterally-procuring bodily-fluid samples from a patient, the device comprising:

• a housing including a proximal end portion and a distal end portion and defining an inner volume therebetween, the housing having an inlet port configured to be fluidically coupled to the patient and an outlet port configured to be fluidically coupled to a sample reservoir;
• a flow control mechanism including a first sealing member and a second sealing member disposed in the housing and defining a first fluid flow path and a second fluid flow path;
• a fluid reservoir disposed in the inner volume and at least partially defined by the flow control mechanism, the fluid reservoir configured to receive and isolate a first volume of bodily-fluid withdrawn from the patient;
• and
• an actuator operably coupled to the flow control mechanism and configured to move the first sealing member a first distance to form a negative pressure in the fluid reservoir when actuated by a user, the actuator further configured to move the first sealing member and the second sealing member a second distance to move the flow control mechanism from a first configuration, in which the inlet port is placed in fluid communication with the fluid reservoir such that bodily fluid can flow from the inlet port, through the first fluid flow path and to the fluid reservoir, to a second configuration, in which the inlet port is placed in fluid communication with the outlet port such that the bodily fluid can flow from the inlet, through the second fluid flow path and to the outlet.