| abstract |
A blood sampling device comprising: a body (312, 362) with a shape and size for partial insertion into an independent vascular access device; a reservoir (302) of one or more chambers, defined within the body (312, 362), wherein the reservoir (302) has an internal volume sufficient to contain enough blood for use in a diagnostic blood test; and a gas permeable ventilation opening (304, 305) disposed in the body (312, 362), wherein the gas ventilation opening (304, 305) is in gas communication with the tank (302); whereby a distal surface of the gas permeable ventilation opening (304, 354) is in direct communication with the tank (302), and a proximal surface of the gas permeable ventilation opening (304, 354) is in communication Direct with an outside environment. |