Portable wound therapy system

Patent metadata

Field	Value
Publication number	US-11141325-B2
Application number	US-201816105806-A
Country	US
Kind code	B2
Filing date	Aug 20, 2018
Priority date	Sep 28, 2006
Publication date	Oct 12, 2021
Grant date	Oct 12, 2021

Abstract

A portable system for subatmospheric pressure therapy in connection with healing a surgical wound, includes a wound dressing dimensioned for positioning relative to a wound bed of a subject, a portable subatmospheric pressure mechanism dimensioned to be carried or worn by the subject and a container for collecting exudates from the wound bed removed under the subatmospheric pressure supplied by the subatmospheric pressure mechanism. The portable subatmospheric pressure mechanism includes a housing, a subatmospheric pressure source disposed within the housing and in fluid communication with the wound dressing to supply subatmospheric pressure to the wound dressing and a power source mounted to or within the housing for supplying power to actuate the subatmospheric pressure source.

First claim

What is claimed is:

1. A system for storing fluid from a tissue site, the system comprising:
a wound packing material adapted to be positioned over the tissue site;
a cover layer adapted to cover the wound packing material and skin adjacent to the tissue site to form a sealed space, the cover layer having an aperture and a first wound facing side and a second side opposite the first side; and
a collection container adapted to be positioned on the second side of the cover layer and adapted to be fluidly coupled to the aperture, the collection canister comprising a first fluid channel portion and a second fluid channel portion and a channel separator between the first fluid channel portion and the second fluid channel portion so that a direction of fluid flow in the first channel portion is in a substantially opposite direction from a direction of fluid flow in the second channel portion, at least one of the first fluid channel portion and the second fluid channel portion adapted to contain liquid from the tissue site.

2. The system of claim 1 , wherein the collection container further comprises an absorbent material disposed in the first fluid channel portion and the second fluid channel portion.

3. The system of claim 2 , wherein the absorbent material covers at least a portion of the first fluid channel portion and the second fluid channel portion.

4. The system of claim 1 , wherein:
the first fluid channel portion and the second fluid channel portion are a plurality of fluid channel portions.

5. The system of claim 1 , further comprising a connection tube fluidly coupling the collection container to the aperture of the cover layer.

6. The system of claim 1 , further comprising a reduced-pressure source adapted to be fluidly coupled to the collection container to supply reduced pressure through the collection container to the wound packing material.

7. The system of claim 1 , wherein the wound packing material is configured to transfer wound fluids from the tissue site.

8. A system for storing fluid from a tissue site, the system comprising:
a wound cover configured to surround a perimeter of a wound and the wound cover comprising a first wound facing side and a second side opposite the first side;
a collection container adapted to be positioned on the second side of the wound cover and configured to be in fluid communication with the wound cover, wherein the collection container comprises a plurality of channels arranged in a general parallel, relation along a major portion of the respective lengths of the channels, wherein the collection canister comprises a first fluid channel of the plurality of channels and a second fluid channel of the plurality of channels and a channel separator between the first fluid channel and the second fluid channel, wherein the direction of fluid flow in the first channel of the plurality of channels is substantially opposite the direction of fluid flow in the second channel of the plurality of channels;
wherein at least one of the first channel and the second channel are adapted to contain liquid from the tissue site.

9. The system of claim 8 , further comprising a portable subatmospheric pressure mechanism comprising a subatmospheric pressure source configured to be in fluid communication with the wound cover to supply subatmospheric pressure to the wound cover, the subatmospheric pressure source including a pump; wherein the subatmospheric pressure source is configured to be in fluid communication with the collection container.

10. The system of claim 8 , wherein the collection container further comprises an absorbent material disposed in the first channel and the second channel.

11. The system of claim 10 , wherein the absorbent material covers at least a portion of the first channel and the second channel.

12. The system of claim 8 , wherein the wound cover comprises an aperture; and
further comprising a connection tube fluidly coupling the collection container to the aperture of the wound cover.

13. A method of storing fluid from a tissue site, the method comprising:
via a fluid flow path comprising a subatmospheric pressure source fluidically connected to a wound cover via a collection container, applying subatmospheric pressure to the wound cover to draw fluid away from the tissue site, wherein the collection container comprises a plurality of channels arranged in a general parallel relation along a major portion of the respective lengths of the channels, wherein the collection canister comprises a first fluid channel of the plurality of channels and a second fluid channel of the plurality of channels and a channel separator between the first fluid channel and the second fluid channel, wherein the direction of fluid flow in the first channel of the plurality of channels is substantially opposite the direction of fluid flow in the second channel of the plurality of channels, and wherein the wound cover comprises a first wound facing side and a second side opposite the first side and the collection container is positioned on the second side of the wound cover; and
storing liquid from the tissue site in at least one of the first channel and the second channel.

Assignees

• Smith & Nephew Inc

Inventors

• Fink E David
• Heagle David
• Mulligan Sharon A

Classifications

• A61M1/984 Primary

  portable on the body · CPC title

• A61M1/98

  Containers specifically adapted for negative pressure wound therapy · CPC title

• A61M1/96

  Suction control thereof · CPC title

• A61F13/53 Primary

  characterised by the absorbing medium (A61F13/20 takes precedence) · CPC title

• A61M1/962

  having pumping means on the suction site, e.g. miniature pump on dressing or dressing capable of exerting suction · CPC title