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Fluid diversion mechanism for bodily-fluid sampling

  • US 9,022,950 B2
  • Filed: 09/23/2014
  • Issued: 05/05/2015
  • Est. Priority Date: 05/30/2012
  • Status: Active Grant
First Claim
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1. A method of obtaining a bodily-fluid sample from a patient using a parenteral sampling device, the method comprising:

  • establishing fluid communication between the patient and an inlet port of the parenteral sampling device;

    disposing a flow control mechanism in a first configuration, the first configuration operable to allow bodily-fluid to flow from the patient, through the inlet port, and into a fluid reservoir;

    moving an actuator a first distance to form a negative pressure in the fluid reservoir, the actuator including a seal member that defines a portion of the fluid reservoir such that the moving of the actuator the first distance moves the seal member from a first position toward a second position to form the negative pressure in the fluid reservoir;

    receiving a first volume of bodily-fluid into the fluid reservoir while the flow control mechanism is in the first configuration;

    moving the actuator a second distance, after the first volume of bodily-fluid has been received into the fluid reservoir, to move the flow control mechanism from the first configuration to a second configuration, the second configuration operable to (1) fluidically isolate the first volume of bodily-fluid in the fluid reservoir, and (2) allow bodily-fluid to flow from the patient to a sample reservoir.

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