CA2538225A1 - Device and method for wound therapy - Google Patents

Device and method for wound therapy Download PDF

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Publication number
CA2538225A1
CA2538225A1 CA002538225A CA2538225A CA2538225A1 CA 2538225 A1 CA2538225 A1 CA 2538225A1 CA 002538225 A CA002538225 A CA 002538225A CA 2538225 A CA2538225 A CA 2538225A CA 2538225 A1 CA2538225 A1 CA 2538225A1
Authority
CA
Canada
Prior art keywords
cavity
fluid
oxygen
wound
wound region
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002538225A
Other languages
French (fr)
Other versions
CA2538225C (en
Inventor
Ashok V. Joshi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Microlin LLC
Original Assignee
Microlin, L.C.
Ashok V. Joshi
Microlin, Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Microlin, L.C., Ashok V. Joshi, Microlin, Llc filed Critical Microlin, L.C.
Publication of CA2538225A1 publication Critical patent/CA2538225A1/en
Application granted granted Critical
Publication of CA2538225C publication Critical patent/CA2538225C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/80—Suction pumps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/90—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
    • A61M1/96—Suction control thereof
    • A61M1/962—Suction control thereof having pumping means on the suction site, e.g. miniature pump on dressing or dressing capable of exerting suction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/90—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
    • A61M1/98—Containers specifically adapted for negative pressure wound therapy
    • A61M1/984—Containers specifically adapted for negative pressure wound therapy portable on the body
    • A61M1/985—Containers specifically adapted for negative pressure wound therapy portable on the body the dressing itself forming the collection container
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/02—Gases
    • A61M2202/0208—Oxygen

Abstract

A disposable wound-healing device is disclosed that incorporates a housing having a fluid-impermeable material having a cavity and a perimeter that can be sealed in an air-tight manner over a wound region of a patient. The device is capable of producing a negative pressure over the wound region by either removing oxygen from within the cavity, or absorbing fluid into the cavity and then removing the fluid from the cavity. The oxygen may be removed via chemical absorption, by an electrochemical cell or by a chemical reaction that cannibalizes oxygen from the cavity. The fluid may be removed through the use of osmotic or electro osmotic cells, or through a one-way valve. The negative partial pressure over the wound region promotes healing.
CA002538225A 2003-09-08 2004-09-08 Device and method for wound therapy Active CA2538225C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/657,820 2003-09-08
US10/657,820 US7361184B2 (en) 2003-09-08 2003-09-08 Device and method for wound therapy
PCT/US2004/029184 WO2005025447A2 (en) 2003-09-08 2004-09-08 Device ανd method for wound therapy

Publications (2)

Publication Number Publication Date
CA2538225A1 true CA2538225A1 (en) 2005-03-24
CA2538225C CA2538225C (en) 2009-04-07

Family

ID=34312679

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002538225A Active CA2538225C (en) 2003-09-08 2004-09-08 Device and method for wound therapy

Country Status (5)

Country Link
US (5) US7361184B2 (en)
EP (1) EP1663062A4 (en)
JP (1) JP2007509639A (en)
CA (1) CA2538225C (en)
WO (1) WO2005025447A2 (en)

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