WOUND DRESSING FOR ELECTRICAL STIMULATION, AND METHOD FOR PRODUCING SUCH A WOUND DRESSING

• US 20130325097A1
• Filed: 12/05/2011
• Published: 12/05/2013
• Est. Priority Date: 12/03/2010
• Status: Abandoned Application

• Current Assignee: Wounder GmbH (Intellectual Ventures LLC), Woundel GmbH
• Original Assignee: Wounder GmbH (Intellectual Ventures LLC)
• Inventors: Loest, Hagen
• Application Number:
  US13/991,363
• Publication Number:
  US 20130325097A1
• Time in Patent Office: Days
• US Class Current: 607/149
• CPC Class Codes: A61N 1/0468 Specially adapted for promoting wound healing
• CPC Class Codes: A61N 1/0472 Structure-related aspects
• CPC Class Codes: A61N 1/205 for promoting a biological process
• CPC Class Codes: Y10T 29/49117 Conductor or circuit manufacturing

Abstract

The invention relates to a wound dressing (10) for electrical stimulation, with a planar energy-transmitting element (12, 12′), a protecting and supporting layer (14), which is connected to the energy-transmitting element (12, 12′) and which covers the energy-transmitting element (12, 12′) on the outside and, at least in some regions, protrudes beyond an edge (16, 16′) of the energy-transmitting element (12, 12′), and a planar wound cover (26) which is applied internally to a side of the energy-transmitting element (12, 12′) facing away from the protecting and supporting layer (14), wherein the energy-transmitting element (12, 12′) and the protecting and supporting layer (14) have a separating line (18, 18′), which extends from the edge into the interior of the wound dressing (10) and which separates a contact band (20, 20′) of the energy-transmitting element (12, 12′); from a wound covering and delimiting area (22, 24) of the energy-transmitting element (12, 12′). Moreover, the invention also relates to a method for producing such a wound dressing (10).

Claims

1. A wound dressing for electrical stimulation, the wound dressing comprising:

a planar energy-transmitting element having an outside and a periphery;

a protecting and supporting layer connected to the energy-transmitting element, the protecting and supporting layer covering the outside of the energy-transmitting element and protruding, at least in sections, beyond the periphery of the energy-transmitting element; and

a planar wound covering, which is applied inside a wound covering area and a delimiting area on a side of the energy-transmitting element facing away from the protecting and supporting layer, wherein the energy-transmitting element and the protecting and supporting layer have a separating line extending from the periphery into an interior of the wound dressing, the separating line separating a contact band of the energy transmitting element from the wound covering area and the delimiting area of the energy-transmitting element, wherein the length of the separating line is selected such that a conductive connection between the contact band of the energy-transmitting element and the wound covering area and the delimiting area of the energy-transmitting element is retained.

2. The wound dressing according to claim 1, wherein the energy transmitting element is surmounted by the protecting and supporting layer in an area of the contact band in a direction from the periphery towards the interior of the wound dressing.

3. The wound dressing according to claim 1, wherein the protecting and supporting layer is shorter than the energy-transmitting element in a direction along the outside of the contact band so that the energy-transmitting element extends beyond the protecting and supporting layer.

4. The wound dressing according to claim 1, wherein the protecting and supporting layer is an electrical insulator.

5. The wound dressing according to claim 1, wherein the energy-transmitting element comprises at least a first layer for supplying energy, the first layer being positioned adjacent to the protecting and supporting layer, and a second layer for energy distribution, the second layer being positioned adjacent to the wound covering.

6. The wound dressing according to claim 1, wherein the energy-transmitting element comprises at least a first layer for supplying energy and a second layer for current distribution, the first layer having a lower electrical resistance than the second layer.

7. The wound dressing according to claim 1, wherein a delimiting strip is applied to the delimiting area of the energy-transmitting element between the wound covering and the separating line.

8. The wound dressing according to claim 7, wherein the protecting and supporting layer and the delimiting strip form an adhesive periphery for fixing the wound dressing surrounding the wound covering.

9. The wound dressing according to claim 8, wherein the adhesive periphery has a substantially constant width.

10. A device for electrical stimulation of a wound, the device comprising a wound dressing according to claim 1, the device further comprising a current source for supplying current to the wound dressing and an electrical connection line for connecting the current source to an exposed end of the contact band.

11. A method for producing a wound dressing for electrical stimulation comprising:

providing a protecting and supporting layer;

applying an energy-transmitting element to the protecting and supporting layer;

applying a gel layer to the energy-transmitting element;

applying an insulating strip on the energy-transmitting element;

applying a separating line by perforating, punching or cutting the energy-transmitting element and/or the protecting and supporting layer;

separating at least one corner of the protecting and supporting layer from the energy transmitting element;

folding the protecting and supporting layer over the energy-transmitting element;

cutting the protecting and supporting layer; and

applying the wound dressing to a transport supporting layer.

12. The method according to claim 11, wherein a delimiting strip is applied to one of the sides of the energy-transmitting element facing away from the protecting and supporting layer, the delimiting strip separating a wound covering area of the energy-transmitting element from a contact band of the energy-transmitting element.

13. A method of producing a wound dressing for electrical stimulation, the method comprising:

providing a compact, basic geometric shape of a demonstrated planar energy-transmitting element;

dividing the energy-transmitting element along a separating line into a wound covering area and a delimiting area and a contact band for connecting the wound dressing to a current source.

14. The method according to claim 13, further comprising:

folding a periphery area of a protecting and supporting layer over the contact band and adhering the protecting and supporting layer to the contact band.

15. The method according to claim 13, further comprising adhering a delimiting strip to a delimiting area of the energy-transmitting element.