Flexible, disposable fluid collection container for negative-pressure therapy

A method for treating a tissue site with reduced pressure, the method comprising:

• sealing the tissue site at a distribution component;
• fluidly coupling a negative-pressure source to the distribution component;
• drawing fluid from the distribution component with the negative-pressure source;
• and
• collecting at least a portion of the fluid in a vessel comprising:
• a rigid canister defining a chamber;
• and
• a flexible container configured to receive a fluid from the distribution component and to provide a route of pressure communication and to restrict liquid communication between an internal volume of the flexible container and the chamber of the rigid canister when the flexible container is disposed within the chamber of the rigid canister.

A vessel for collecting fluids from a tissue site being treated reduced pressure treatment, the vessel comprising:

• a rigid canister defining a chamber;
• a first port in fluid communication with the chamber and adapted to be fluidly coupled to a negative-pressure source;
• a second port extending into the chamber and adapted to be fluidly coupled to the tissue site for collecting fluids from the tissue site;
• and
• a flexible container disposed within the chamber and forming an external space between the chamber and the flexible container, the flexible container having an inlet fluidly coupled to the second port for receiving fluids from the tissue site, an outlet in fluid communication with the external space, and a filter disposed within the outlet adapted to restrict communication of liquids from the flexible container into the external space, and wherein the first port is also in fluid communication with the external space.