Wound treatment device

• US 8,376,972 B2
• Filed: 11/25/2005
• Issued: 02/19/2013
• Est. Priority Date: 02/15/2005
• Status: Expired due to Fees

• Current Assignee: T.J.Smith And Nephew, Limited
• Original Assignee: Wilhelm Fleischmann
• Inventors: Fleischmann, Wilhelm
• Primary Examiner(s): Brown, Michael
• Assistant Examiner(s): JACKSON, BRANDON LEE
• Application Number:
  US11/816,411
• Publication Number:
  US 20080167593A1
• Time in Patent Office: 2,643 Days
• Field of Search: 66/19, 602/48, 604314-317
• US Class Current: 601/6
• CPC Class Codes: A61F 13/05 specially adapted for use with sub-pressure or over-pressure therapy, wound drainage or wound irrigation, e.g. for use with negative-pressure wound therapy [NPWT]
• CPC Class Codes: A61F 2013/00119 elastic
• CPC Class Codes: A61F 2013/00131 elasticity distribution
• CPC Class Codes: A61F 2013/00174 possibility of applying pressure
• CPC Class Codes: A61F 2013/00412 for use with needles, tubes or catheters
• CPC Class Codes: A61F 2013/00536 for draining or irrigating wounds
• CPC Class Codes: A61F 2013/0074 containing foams
• CPC Class Codes: A61F 2013/00957 pressure
• CPC Class Codes: A61M 1/915 Constructional details of the pressure distribution manifold
• CPC Class Codes: A61M 1/916 specially adapted for deep wounds
• CPC Class Codes: A61M 1/92 with liquid supply means
• CPC Class Codes: A61M 1/964 having venting means on or near the dressing
• CPC Class Codes: A61M 1/966 having a pressure sensor on or near the dressing
• CPC Class Codes: A61M 39/24 Check- or non-return valves
• CPC Class Codes: D04B 21/16 incorporating synthetic threads
• CPC Class Codes: D10B 2403/021 Lofty fabric with equidistantly spaced front and back plies, e.g. spacer fabrics
• CPC Class Codes: D10B 2509/022 Wound dressings

Abstract

A wound treatment device comprises a wound surface contacting plug (10) and a cover (24) for covering the wound surface (22) and the plug (10), wherein said plug (10) consists of a flat textile isolating material comprising at least one first surface layer (12), one second surface layer (14) and one intermediate space (18) arranged between said surface layers (12, 14). At least the first surface layer (12) is provided with a biocompatible surface and a structure which enables a liquid to pass and prevents a wound tissue from growing in said structure. The intermediate space (18) is provided with isolating threads (16) elastically holding the first surface layer (12) and the second surface layer at a certain distance from each other.

Claims

1. A method of treating a wound, comprising the steps of:

providing a wound insert having a first, biocompatible wound surface layer and a second surface layer held apart by elastic spacer filaments to define an interspace in an interior of the wound insert between the biocompatible wound surface layer and the second surface layer, wherein the interspace is a substantially open space to receive a vacuum hose;

fitting the wound insert to a wound such that the biocompatible wound surface layer abuts the wound;

surrounding the wound insert and wound with a dressing material to form a substantially air-tight seal;

introducing the vacuum hose under the seal and into the interior of the wound insert between the first and second surface layers in direct communication with the interspace;

creating a vacuum under the seal with the vacuum hose in communication with the interspace in the wound insert;

wherein the vacuum compresses the wound insert against the restoring force of the elastic spacer filaments;

wherein the elastic spacer filaments cause the wound insert to expand;

wherein expansion of the wound insert exerts pressure on the wound and expels wound tissue fluids that collect in the interspace;

opening a valve of the vacuum hose to release the vacuum;

suctioning the wound tissue fluids out of the interspace; and

repeating the step of creating a vacuum under the seal at least once.

2. The method of treating a wound according to claim 1, wherein the seal has a closable opening the closable opening of the seal is closed after the wound insert is compressed.

3. The method of treating a wound according to claim 1, wherein the wound insert has two biocompatible wound surface layers disposed opposite each other;

fitting the wound insert into a wound such that both biocompatible wound surface layers abut against the wound.