Expandable fluid collection canister
AssigneeKCI Licensing, Inc.
InventorsChristopher Brian Locke, Gareth Stephenson
Life of this patent
Estimating the term…
Abstract
A bodily fluid collection system includes a reduced pressure treatment unit for providing reduced pressure to a fluid collection system through a canister having a container with an inlet adapted to be fluidly coupled to the fluid collection system, an outlet adapted to be connected to a source of reduced pressure, and an absorptive lamination disposed within the container. The absorptive lamination may be formed from a plurality of absorptive layers and wicking layers interleaved between the absorptive layers that collectively manifold bodily fluids from a tissue site into and throughout the absorptive lamination to trap and collect the bodily fluids. The container expands as the absorptive lamination swells with the bodily fluid being collected.
Claims36
A fluid collection system for collecting bodily fluids from a tissue site using reduced pressure, the fluid collection device comprising:
- a canister comprising an inlet, an outlet, and a container, said inlet adapted to be in fluid communication with a wound dressing in a tissue site, said outlet adapted to be in fluid communication with a reduced pressure source, and said container configured to be volumetrically expandable, substantially impervious to fluid, and in fluid communication with said inlet and said outlet;
- and
- a plurality of layers of wicking material positioned proximate to a plurality of layers of absorptive material, said plurality of layers of wicking material and said plurality of layers of absorptive material disposed within said container.
Method for volumetrically expanding a bodily fluid canister, the method comprising:
- introducing bodily fluid into a canister, said canister comprising a container, said container containing a plurality of layers of absorptive material within said canister adapted to retain bodily fluid and a plurality of layers of wicking material within said canister adapted to distribute bodily fluid along said plurality of layers of absorptive material,
- volumetrically expanding said canister wherein said container is adapted to expand to accommodate changes in dimensions of said plurality of layers of absorptive material and of said plurality of layers of manifold material.
A bodily fluid collection system comprising:
- a canister comprising an inlet, an outlet, and a container, said container comprising a first surface, a second surface, and a connecting member, said first and said second surface configured in an essentially parallel orientation, said connecting member fixed along perimeters of said first surface and said second surface, said container configured to be volumetrically expandable and substantially impervious to fluid, said inlet adapted to be in fluid communication with a wound dressing in a tissue site, said inlet located on top portion of said first surface of said container, said outlet adapted to be in fluid communication with a reduced pressure source, said outlet located on top portion of said second surface of said container;
- a plurality of layers of wicking material and a plurality of layers of absorptive material, said plurality of wicking material layers and said plurality of absorptive material layers oriented within said container essentially parallel to said first surface, said plurality of wicking material layers and said plurality of absorptive material layers positioned wherein each layer of said absorptive material is proximate to at least one layer of said manifold material;
- and
- a tube situated within said container, said tube in fluid communication with said inlet, in fluid communication with said container, and oriented essentially perpendicular to said plurality of layers of manifold material.
A canister for collecting bodily fluids from a fluid collection system for delivering reduced pressure to a tissue site from a source of reduced pressure, the canister comprising:
- a container having a chamber being expandable to receive and collect bodily fluids from the tissue site in response to the application of the reduced pressure;
- an inlet fluidly coupled to the chamber of the container and configured to be in fluid communication with the fluid collection system for delivering the bodily fluids into the chamber of the container;
- an outlet fluidly coupled to the chamber of the container and configured to be in fluid communication with the source of reduced pressure for providing reduced pressure through the chamber of the container to the fluid collection system;
- and
- an absorptive lamination disposed within the container and adapted to trap and collect a liquid portion of the bodily fluids separated from the gaseous portion of the bodily fluids flowing from the inlet to the outlet within the container, wherein the container expands as the absorptive lamination swells to absorb the liquid portion of the bodily fluids.
Dependencies are inferred from the claim text.