US 12,471,815 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 Jul. 27, 2023, as Appl. No. 18/227,185.
Application 13/954,528 is a division of application No. 13/650,554, filed on Oct. 12, 2012, granted, now 8,535,241, issued on Sep. 17, 2013.
Application 18/227,185 is a continuation of application No. 17/684,920, filed on Mar. 2, 2022, abandoned.
Application 17/684,920 is a continuation of application No. 16/299,962, filed on Mar. 12, 2019, abandoned.
Application 16/299,962 is a continuation of application No. 14/712,431, filed on May 14, 2015, granted, now 10,265,007, issued on Apr. 23, 2019.
Application 14/712,431 is a continuation of application No. 14/455,263, filed on Aug. 8, 2014, granted, now 9,060,725, issued on Jun. 23, 2015.
Application 14/455,263 is a continuation of application No. 13/954,528, filed on Jul. 30, 2013, granted, now 8,864,684, issued on Oct. 21, 2014.
Claims priority of provisional application 61/546,954, filed on Oct. 13, 2011.
Prior Publication US 2023/0363674 A1, Nov. 16, 2023
Int. Cl. A61B 5/15 (2006.01); A61B 5/155 (2006.01); A61B 10/00 (2006.01)
CPC A61B 5/150206 (2013.01) [A61B 5/15003 (2013.01); A61B 5/150099 (2013.01); A61B 5/150213 (2013.01); A61B 5/150221 (2013.01); A61B 5/150236 (2013.01); A61B 5/150251 (2013.01); A61B 5/150267 (2013.01); A61B 5/150351 (2013.01); A61B 5/150389 (2013.01); A61B 5/150946 (2013.01); A61B 5/150992 (2013.01); A61B 5/155 (2013.01); A61B 10/0045 (2013.01); A61B 10/0048 (2013.01); A61B 10/0051 (2013.01); A61B 10/007 (2013.01); A61B 5/150259 (2013.01); A61B 2010/0061 (2013.01); A61B 2010/0077 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A blood sampling system, comprising:
a blood sampling pathway including a lumen-containing device configured to be coupled to a patient on a first end and a sample needle on a second end; and
a blood transfer device integrated on the blood sampling pathway between the first end and the second end of the blood sampling pathway, the blood transfer device comprising:
a housing including an inlet port coupled with the blood sampling pathway toward the first end and an outlet port coupled with the blood sampling pathway toward the second end;
a reservoir disposed in the housing and in fluid communication with the inlet port;
a first seal member defining at least a portion of the reservoir, the first seal member configured to facilitate a pressure differential in the reservoir operable to cause a flow of blood from the inlet port to the first seal member while air flows from inside the housing to a volume outside the housing, the first seal member and the reservoir collectively configured to sequester the blood in the reservoir;
a sampling flow path defined by an inner surface of the housing that includes a first end in fluid communication with the inlet port and a second end in fluid communication with the outlet port; and
a second seal member disposed in the housing, the second seal member configured, in a first position, to obstruct at least a portion of the sampling flow path, the second seal member configured to be moved to a second position in which the inlet port is in fluid communication with the sampling flow path to convey a subsequent flow of blood through the housing from the inlet port to the outlet port that bypasses the reservoir and the blood sequestered therein.