Trauma patient hemorrhage control including rapid autotransfusion

A portable rapid autotransfusion device for point-of-injury or similar onsite hemorrhage control in a trauma patient, the device comprising:

• a blood intake fluid circuit, at least partially open to air in an ambient environment of the device, the blood intake fluid circuit including:
• a fluid reservoir for recovering a first portion of patient blood, from an extravascular space of a patient into which the first portion of the patient blood has hemorrhaged;
• and
• an enclosed flexible bag, fluidly connected to an outlet of the fluid reservoir permitting outgassing of gas from the first portion of patient blood out of the enclosed flexible bag;
• wherein a negative internal pressure is applied to at least one of the fluid reservoir or the enclosed flexible bag;
• and
• a conditioning fluid circuit, including or fluidly connected to the enclosed flexible bag of the blood intake fluid circuit and fluidly sealed from the air in the ambient environment of the device, the conditioning fluid circuit including:
• a blood conditioner configured to condition the first portion of patient blood including oxygenating, and removing carbon dioxide (CO2) from the first portion of patient blood to produce conditioned blood;
• wherein the conditioning fluid circuit is configured to:
• concurrent with recovering patient blood from the patient via the blood intake circuit, return conditioned blood back to the patient intravenously via a fluid outlet of the conditioning fluid circuit;
• and
• condition the first portion of the patient blood for returning to the patient at at least a substantially equal rate to a rate at which the blood is concurrently being recovered from the patient via the blood intake fluid circuit, such that a net returned blood volume is capable of being maintained substantially equal to a net removed blood volume.

A method for point-of-injury or similar onsite hemorrhage control in a trauma patient via, the method comprising:

• pressurizing a first portion of patient blood, contained within a fluid reservoir at least partially exposed to air in an external ambient environment, the first portion of patient blood received from a first blood transfer location of a patient;
• outgassing air from the first portion of patient blood, within an enclosed flexible bag fluidly connected to an outlet of the fluid reservoir, the outgassing including impeding blood from permeating through the enclosed flexible bag;
• selectively purging the air outgassed from the first portion of patient blood, via an air evacuation port, to limit air entrainment as the first portion of blood exits the enclosed flexible bag;
• and
• returning, concurrent with recovering patient blood from the patient via the fluid reservoir, conditioned blood back to the patient intravenously via a fluid outlet of a conditioning fluid circuit fluidly connected to the enclosed bag and fluidly sealed from the external ambient environment.