Ventilator-coupled sampling device and method

A ventilator system comprising:

• an outlet line;
• and
• a pump configured to increase pressure in the outlet line of the ventilator during periodic inspiration pulses of an inspiration cycle of the ventilator;
• and
• a sample collection system comprising:
• a sample collection device, the sample collection device including a cavity containing one or more sorbents;
• a valve system coupled to an opening of the cavity of the sample collection system, the valve system comprising a first one-way valve that allows flow of gas into the sample collection system and a second one-way valve that allows flow of gas out of the sample collection system;
• and
• a sleeve having a volume including a fluid conveyance from a port of the sample collection device to the second one-way valve of the valve system, the sleeve being configured to accommodate the sample collection device and configured to be coupled to the valve system, wherein:
• the valve system is configured to be coupled to the ventilator outlet line,
• the sample collection system is configured to allow the flow of gas into the sample collection system to occur during the periodic inspiration pulses of the inspiration cycle of the ventilator,
• the sample collection system is configured to allow the flow of gas out of the sample collection system to occur between the inspiration pulses of the inspiration cycle of the ventilator,
• the flow of gas into the sample collection system is actuated by the pump of the ventilator that is coupled to the sample collection system by way of the ventilator outlet line,
• the flow of gas out of the sample collection system is facilitated by an outlet valve of the ventilator, and
• a distance between the one or more sorbents and the opening of the cavity of the sample collection system is less than a distance between the port and the opening of the cavity of the sample collection system.

A method comprising:

• increasing, with a pump of a ventilator that is fluidly coupled to an outlet line of the ventilator, pressure in the outlet line of the ventilator during periodic inspiration pulses of an inspiration cycle of the ventilator;
• during the periodic inspiration pulses of the inspiration cycle of the ventilator, actuating, with the pump of the ventilator, [[the]] flow of gas into a sample collection system;
• and
• between the periodic inspiration pulses of the inspiration cycle of the ventilator, facilitating, with an outlet valve of the ventilator, the flow of gas out of the sample collection system, wherein:
• the sample collection system is fluidly coupled to a valve system,
• the valve system is fluidly coupled to the outlet line of the ventilator,
• the sample collection system comprises a sample extraction device having a cavity containing one or more sorbents, and
• the valve system comprises a first one-way valve that allows flow of gas into the sample collection system and a second one-way valve that allows flow of gas out of the sample collection system.