Apparatus for removing fluid from a wound

• US 5,549,584 A
• Filed: 02/14/1994
• Issued: 08/27/1996
• Est. Priority Date: 02/14/1994
• Status: Expired due to Term

• Current Assignee: Smith & Nephew Incorporated (Smith & Nephew PLC)
• Original Assignee: The Kendall Company (Colgate-Palmolive Company)
• Inventors: Gross, James R.
• Primary Examiner(s): Weiss, John G.
• Assistant Examiner(s): Polutta, Mark O.
• Application Number:
  US08/194,976
• Time in Patent Office: 925 Days
• Field of Search: 604/118, 604/119, 604/305, 604/313, 604/317, 604/73-75, 604/324, 604/319-321, 604/73, 604/289, 604/290, 604/315, 604/316, 604/183, 604/355, 602/14, 602/48, 602/58, 128/765, 128/767
• US Class Current: 604/313
• CPC Class Codes: 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
• CPC Class Codes: A61M 1/784 by filtering, sterilising or disinfecting the exhaust air, e.g. swellable filter valves
• CPC Class Codes: A61M 1/82 Membrane pumps, e.g. bulbs
• CPC Class Codes: A61M 1/915 Constructional details of the pressure distribution manifold
• CPC Class Codes: A61M 1/964 having venting means on or near the dressing
• CPC Class Codes: A61M 1/984 portable on the body
• CPC Class Codes: A61M 2205/075 Bulb type
• CPC Class Codes: A61M 2205/7536 allowing gas passage, but preventing liquid passage, e.g. liquophobic, hydrophobic, water-repellent membranes
• CPC Class Codes: 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

Abstract

The invention features methods and apparatuses for evacuation of exudate from wounds. The apparatuses include a suctioning means having an inlet port and an outlet port, and a wound cover in fluid communication with the suctioning means via the inlet port. The wound cover is adapted to fit in fluid communication with a wound dressing for application to a wound site. The suctioning means is operative to remove exudate from a wound dressing in association with the wound cover and covering a wound site.

Claims

1. An apparatus for evacuation of exudate from wounds, comprising

a suctioning means having an inlet port and an outlet port;

a wound cover in fluid communication with said suctioning means via said inlet port, said wound cover being adapted to fit in fluid communication with a wound dressing for application to a wound site; and

a vented wound dressing comprising a thin conformable sheet material at least a portion of the surface area of which is intended for placement as a dressing over a wound, which portion carries a pressure-sensitive adhesive coating on one surface thereof for adhering the dressing to skin, the coating being applied to provide repeating areas of the sheet material containing no adhesive, at least a portion of the repeating areas of no adhesive having slits extending through the thickness thereof to permit transfer of wound fluids through the sheet material unimpeded by presence of adhesive material which can clog the slits and thereby inhibit fluid transfer therethrough.

2. The apparatus of claim 1, further comprising a collection bag in fluid communication with said suctioning means via said outlet port.

3. The apparatus of claim 1, said suctioning means being compressible and expandable.

4. The apparatus of claim 1, said inlet port being fitted with a one-way inlet valve and said outlet port being fitted with a one-way outlet valve.