Irrigation dressing

• US 5,358,494 A
• Filed: 09/16/1993
• Issued: 10/25/1994
• Est. Priority Date: 07/11/1989
• Status: Expired due to Term

• Current Assignee: Pharmark Inovations, Ltd.
• Original Assignee: Pharmark Inovations, Ltd.
• Inventors: Svedman, Pal
• Primary Examiner(s): Green, Randall L.
• Assistant Examiner(s): PREBILIC, PAUL B
• Application Number:
  US08/121,892
• Time in Patent Office: 404 Days
• Field of Search: 604/21, 604/33, 604/36, 604/73, 604/93, 604/283, 604/175, 604/313, 604/316, 604/305, 128/887, 128/888
• US Class Current: 604/313
• CPC Class Codes: A61B 2046/236 with means for collecting drain fluid, e.g. drain tubes
• CPC Class Codes: A61F 13/0226 characterised by the support layer
• CPC Class Codes: A61F 13/0259 characterised by the release liner covering the skin adhering layer
• 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 2013/00412 for use with needles, tubes or catheters
• CPC Class Codes: A61F 2013/00757 with absorbent adhesives
• CPC Class Codes: A61F 2013/4593 allowing introduction of medical instruments without removing the absorbent article
• CPC Class Codes: A61F 2013/530802 characterized by the foam or sponge other than superabsorbent A61F2013/530649 takes precedence
• 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 1/982 with means for detecting level of collected exudate
• 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
• CPC Class Codes: A61M 3/0279 Cannula; Nozzles; Tips; their connection means

Abstract

An irrigation dressing for deep wounds comprises an adhesive, substantially liquid- and air-impermeable plate (1) having at least one perforation (6, 7) for supplying and sucking off liquid, and for pressure equalization. The perforation is provided with a conduit (10) for supplying and sucking off liquid. The conduit is introduced into the wound cavity, and irrigation liquid is supplied and sucked off through it. After completed irrigation, the perforation/perforations in the plate is/are closed in order to seal the dressing.

A bag (18) can be connected to the dressing for filling up and actively affecting the wound cavity.

Claims

1. An irrigation dressing for deep wounds comprising a substantially air- and water-impermeable, substantially flat and flexible plate (1) comprising an outer layer (2), an inner adhesive layer (3) and, optionally, a release layer (5) applied to the adhesive layer, said plate being formed with at least one perforation (6) to which one end of a conduit (10) is connected for supplying and removing liquid, and which is also used for pressure equalization, an opposite end of the conduit (10), which is to be placed in the wound, being provided with a pad (11) of capillary-active material such that said pad (11) is provided at a distance from the plate (1);

and

the pad (11) being provided with ducts (22) and outlet tubes communicating therewith.

2. An irrigation dressing for deep wounds comprising a substantially air- and water-impermeable, substantially flat and flexible plate (1) comprising an outer layer (2), an inner adhesive layer (3) and, optionally, a release layer (5) applied to the adhesive layer, said plate being formed with at least one perforation (6) to which one end of a conduit (10) is connected for supplying and removing liquid, and which is also used for pressure equalization, an opposite end of the conduit (10), which is to be placed in the wound, being provided with a pad (11) of capillary-active material such that said pad (11) is provided at a distance from the plate (1);

and

a bag (18) for filling up the wound cavity, the plate being formed with an additional opening (19) for connection and refilling of said bag.

3. An irrigation dressing for deep wounds comprising a substantially air- and water-impermeable, substantially flat and flexible plate (1) comprising an outer layer (2), an inner adhesive layer (3) and, optionally, a release layer (5) applied to the adhesive layer, said plate being formed with at least two perforations (6;

7) to one end of one said perforation (6) of which a conduit (10) is connected for supplying and removing liquid, and an other said perforation (7) is used for pressure equalization, an opposite end of the conduit (10), which is to be placed in the wound, being provided with a pad (11) of capillary-active material such that said pad (11) is provided at a distance from the plate (1); and

a portion of the plate (1) around said at least two perforations (6;

     7) is made of a porous, air-permeable material (16) which, on the side facing the skin optionally has a water-repellant surface.

4. An irrigation dressing for deep wounds comprising a substantially air- and water-impermeable, substantially flat and flexible plate (1) comprising an outer layer (2), an inner adhesive layer (3) and, optionally, a release layer (5) applied to the adhesive layer, said plate being formed with at least one perforation (6) to which one end of a conduit (10) is connected for supplying and removing liquid, and said at least one perforation is also used for pressure equalization, an opposite end of the conduit (10), which is to be placed in the wound, being provided with a pad (11) of capillary-active material such that said pad (11) is provided at a distance from the plate (1);

and

the conduit (10) has weakened portions (17) for facilitating shortening the conduit (10) to a desired length.

5. An irrigation dressing for deep wounds comprising a substantially air- and water-impermeable, substantially flat and flexible plate (1) comprising an outer layer (2), an inner adhesive layer (3) and, optionally, a release layer (5) applied to the adhesive layer, said plate being formed with at least two perforations (6;

7) to one end of one said perforation (6) of which a conduit (10) is connected for supplying and removing liquid, and an other said perforation (7) is used for pressure equalization, an opposite end of the conduit (10), which is to be placed in the wound., being provided with a pad (11) of capillary-active material such that said pad (11) is provided at a distance from the plate (1); and

connections (8,

     9) arranged in the respective perforations (6,

     7) and countersunk in a surface of the plate that is opposite to the surface attached to the adhesive layer (3).

6. An irrigation dressing for deep wounds comprising a substantially air- and water-impermeable substantially flat and flexible plate (1) comprising an outer layer (2), an inner adhesive layer (3) and, optionally, a release layer (5) applied to the adhesive layer, said plate being formed with at least one perforation (6) to which one end of a conduit (10) is connected for supplying and removing liquid, and said least one perforation is also used for pressure equalization, an opposite end of the conduit (10), which is to be placed in the wound, being provided with a pad (11) of capillary-active material such that said pad (11) is provided at a distance from the plate (1);

and

a bag for filling up and, optionally, actively affecting a wound cavity, said bag being defined by a wall and having a connection for filling it, said bag being completely or partly filled with liquid or gas.

7. The irrigation dressing as claimed in claim 6, wherein said bag has two walls.

8. The irrigation dressing as claimed in claim 6, wherein the the bag is provided with a pharmaceutical preparation.