US 2025/0116577 A1 · RECIRCULATION SYSTEM FOR AEROSOL COLLECTORS USING LIQUID COLLECTION BUFFER

Abstract

An exemplary active recirculation system and method for aerosol collection are disclosed that employ recirculation via one or more active pumps (e.g., peristaltic pumps) to continuously circulate a collection buffer within an aerosol collection frontend to improve the collection efficiency. In using less fluid volume, the exemplary active recirculation system and method increase the concentration of the target particle. A high concentration of particles may be advantageous when detecting pathogens downstream of collection. The aerosol collection frontend connects to a collection reservoir. During a collection cycle, a pump draws the fluid from the collection reservoir and pumps the collected fluid back into the collection front end at a set flow rate.

Claims20

Dependent claims

A system comprising:

an aerosol collection frontend configured to capture, in a hydrosol, aerosols and/or particles from a continuous moving volume of air through an input nozzle;
and
a recirculation assembly operatively coupled to the aerosol collection frontend to recirculate the hydrosol collected from the aerosol collection frontend and a recirculation volume of hydrosol to increase a concentration of the captured aerosols and/or particles in the captured hydrosol for sampling thereof, the recirculation assembly comprising:
a collection reservoir configured to connect to the aerosol collection frontend to collect the hydrosol, the collection reservoir maintaining a part of the recirculation volume of hydrosol, and
a first pump operatively connected to the collection reservoir to move the recirculation volume of hydrosol from the collection reservoir to a recirculation input of the aerosol collection frontend.

2 more elements

Dependencies are inferred from the claim text.

Recirculation system for aerosol collectors using liquid collection buffer

Life of this patent

Recirculation system for aerosol collectors using liquid collection buffer

Life of this patent

Abstract

Claims20