US 12,478,300 B2
Fluid diversion mechanism for bodily-fluid sampling
Gregory J. Bullington, Seattle, WA (US); Richard G. Patton, Seattle, WA (US); Jay M. Miazga, Langley, WA (US); and Shan E. Gaw, Seattle, WA (US)
Assigned to Magnolia Medical Technologies, Inc., Seattle, WA (US)
Filed by Magnolia Medical Technologies, Inc., Seattle, WA (US)
Filed on Dec. 29, 2020, as Appl. No. 17/136,882.
Application 17/136,882 is a continuation of application No. 14/926,784, filed on Oct. 29, 2015, granted, now 10,881,343.
Application 14/926,784 is a continuation of application No. 13/952,964, filed on Jul. 29, 2013, granted, now 9,204,864, issued on Dec. 8, 2015.
Claims priority of provisional application 61/678,404, filed on Aug. 1, 2012.
Prior Publication US 2021/0186392 A1, Jun. 24, 2021
Int. Cl. A61B 5/15 (2006.01); A61B 5/153 (2006.01); A61B 10/00 (2006.01); A61B 5/154 (2006.01)
CPC A61B 5/150221 (2013.01) [A61B 5/15003 (2013.01); A61B 5/150099 (2013.01); A61B 5/150916 (2013.01); A61B 5/153 (2013.01); A61B 10/0045 (2013.01); A61B 10/0096 (2013.01); A61B 5/150236 (2013.01); A61B 5/150244 (2013.01); A61B 5/154 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A bodily-fluid sampling device for procuring bodily-fluid samples with reduced contamination from a patient, the device comprising:
a housing;
a pre-sample reservoir disposed in the housing and configured to receive and isolate a volume of bodily-fluid withdrawn from the patient;
a diverter disposed in the housing, the diverter having an inlet configured to be fluidically coupled to the patient; and
a flow control mechanism coupled to the diverter and configured to transition between a first configuration in which the flow control mechanism prevents bodily-fluid from flowing from the patient to the pre-sample reservoir, a second configuration in which the flow control mechanism and the diverter collectively define a first fluid flow path between the inlet and the pre-sample reservoir that allows the pre-sample reservoir to receive the volume of bodily-fluid, and a third configuration different from each of the first configuration and the second configuration in which the flow control mechanism and the diverter collectively define at least a portion of a second fluid flow path between the inlet and an external fluid reservoir disposed outside of the housing and in fluid communication with the diverter such that bodily-fluid flows from the inlet to the external fluid reservoir via the second fluid flow path,
the flow control mechanism transitioning from the first configuration to the second configuration producing a negative pressure differential between the inlet and the pre-sample reservoir operable to draw the volume of bodily-fluid into the pre-sample reservoir, the flow control mechanism being prevented from transitioning to the third configuration before the second configuration such that the pre-sample reservoir receives the volume of bodily-fluid before bodily-fluid flows to the external fluid reservoir.