# US 8,771,243 B2 · Wound treatment system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,771,243 B2 - Document ID: US8771243B2 - Status: Granted - Kind: B2 - Application number: 12/023,251 - Filed: 2008-01-31 - Published: 2008-11-20 - Granted: 2014-07-08 - Earliest claimed: 2007-02-01 - Assignees: University of Cincinnati - Applicants: Joseph Khan; Jonathan Schoeff - Inventors: Joseph Khan; Jonathan Schoeff - Web page: https://patentgrep.com/patent/US8771243B2 ## CPC - A61F 5/449: Body securing means, e.g. belts or garments - A61M 1/69: {Drainage containers not being adapted for subjection to vacuum, e.g. bags (devices worn by the patient for reception of urine A61F5/44)} - A61M 1/985: {the dressing itself forming the collection container} - A61M 1/962: {having pumping means on the suction site, e.g. miniature pump on dressing or dressing capable of exerting suction} - A61M 27/00: Drainage appliance for wounds or the like {, i.e. wound drains, implanted drains} ({negative pressure wound therapy devices A61M1/90;} implements for holding wound open A61B17/02 {; middle ear drainage A61F11/202}) - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} ## Abstract A wound treatment system includes a sponge including a first surface adapted to confront a wound bed of a patient, a drape in contact with a second surface of the sponge, and a vacuum source for distributing a vacuum force through the sponge. The system also includes a wound separator having a sidewall defining an interior chamber, wherein at least a portion of an exterior of the sidewall confronts at least an interior portion of the sponge. An ostomy appliance is operatively connected to the wound separator to receive substances passing out of the wound separator. ## Claims ### Claim 1 A wound treatment system comprising: a sponge including a first surface adapted to confront a wound bed of a patient; a drape in contact with a second surface of the sponge, the second surface being substantially opposite said first surface; a vacuum source for distributing a vacuum force through said sponge; a vacuum tube having a proximal end connected to the sponge and a distal end connected to said vacuum source; and a wound separator having a sidewall defining an interior chamber, wherein at least a portion of an exterior of said sidewall confronts at least an interior portion of said sponge, the wound separator adapted to confront an opening in the wound bed, such that the opening in the wound bed is in communication with the interior chamber of the wound separator and the opening in the wound bed is not substantially in communication with the sponge or with the wound bed exterior to the wound separator, wherein the interior chamber of the wound separator is open at a first end thereof, the first end adapted to be placed in direct contact with the wound bed and in a surrounding relationship to a fistula. ### Claim 2 (depends on 1) The wound treatment system of claim 1, wherein the sponge further defines an orifice therethrough, and the wound separator is positioned in the orifice. ### Claim 3 (depends on 2) The wound treatment system of claim 2, wherein said first end includes a first flange extending outwardly therefrom relative to a longitudinal axis of the wound separator. ### Claim 4 (depends on 3) The wound treatment system of claim 3, wherein the second end is open, and further comprising a second flange operatively coupled to and extending radially outwardly from the second end of the wound separator. ### Claim 5 (depends on 1) The wound treatment system of claim 1, further comprising an adhesive on a surface of the drape in contact with said second surface of said sponge. ### Claim 6 (depends on 1) The wound treatment system of claim 1, wherein said drape is applied non-adhesively to a patient. ### Claim 7 (depends on 6) The wound treatment system of claim 6, wherein said drape is retained on said patient by the vacuum force. ### Claim 8 (depends on 1) The wound treatment system of claim 1, wherein said drape defines an orifice in fluid communication with the interior chamber of the wound separator. ### Claim 9 (depends on 1) The wound treatment system of claim 1, further comprising an ostomy appliance operatively connected to the drape. ### Claim 10 (depends on 9) The wound treatment system of claim 9, wherein said ostomy appliance further comprises a bag of thermoplastic material having an outer surface and defining an interior chamber. ### Claim 11 (depends on 10) The wound treatment system of claim 10, wherein said bag further defines an opening, said opening being in fluid communication with the interior chamber of the wound separator and the interior chamber of the bag.