Fluid diversion mechanism for bodily-fluid sampling

摘要

An apparatus includes a housing, a fluid reservoir, a flow control mechanism, and an actuator. The housing defines an inner volume and has an inlet port that can be fluidically coupled to a patient and an outlet port. The fluid reservoir is disposed in the inner volume to receive and isolate a first volume of a bodily-fluid. The flow control mechanism is rotatable in the housing from a first configuration, in which a first lumen places the inlet port is in fluid communication with the fluid reservoir, and a second configuration, in which a second lumen places the inlet port in fluid communication with the outlet port. The actuator is configured to create a negative pressure in the fluid reservoir and is configured to rotate the flow control mechanism from the first configuration to the second configuration after the first volume of bodily-fluid is received in the fluid reservoir.

主权项

1. A device for 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 at least partially disposed in the housing, the flow control mechanism defining a first fluid flow path and a second fluid flow path; a fluid reservoir disposed in the inner volume and configured to receive and isolate a first volume of bodily-fluid withdrawn from the patient; and an actuator operably coupled to the flow control mechanism, the actuator including a seal member defining a portion of the fluid reservoir, the actuator configured to move the seal member from a first position toward a second position to form a negative pressure in the fluid reservoir when actuated by a user, the actuator further configured to transition 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 port, through the second fluid flow path and to the outlet port.