Granted Patent B2

US 6,841,715 · App. 10/140,427 · Granted Jan 11, 2005

Abstract

Claims (24)

1. A self adherent dermal wound window dressing for the protection of an indwelling catheter access site, and which provides the simultaneous absorption and continuous mitigation of moisture vapor, visualization of the skin/cannula exit point and mechanical securement of the indwelling catheter, the window dressing comprising:

a fabric tape layer having an adhesive skin adhering side and an opposite non-adhesive side; said fabric tape layer having an opening therein to allow viewing therethrough;

a semipermeable transparent film layer closing said opening in said fabric tape layer and having an adhesive skin adhering side and an opposite non-adhesive side; said film layer non-adhesive side being adhered on the adhesive side of said fabric layer around said opening such that said fabric layer extends beyond the periphery of said transparent film layer; and

an absorbent fiber layer having an opening generally corresponding to said opening in said fabric tape layer, said fiber layer being mounted on the adhesive skin adhering side of said transparent film layer such that said openings in said absorbent fiber and fabric tape layers are in alignment and said transparent film layer extends beyond the periphery of said absorbent fiber layer.

2. A self adherent dermal wound window dressing for the protection of an indwelling catheter access site, and which provides the simultaneous absorption and continuous mitigation of moisture vapor, visualization of the skin/cannula exit point and mechanical securement of the indwelling catheter, the window dressing comprising:

a fabric tape layer having an adhesive skin adhering side and an opposite non-adhesive side; said fabric tape layer having an opening therein to allow viewing therethrough;

a semipermeable transparent film layer closing said opening in said fabric tape layer and having an adhesive skin adhering side and an opposite non-adhesive side; said film layer non-adhesive side being adhered on the adhesive side of said fabric layer around said opening such that said fabric layer extends beyond the periphery of said transparent film layer; and

an absorbent fiber layer having an opening generally corresponding to said opening in said fabric tape layer, said fiber layer being mounted on the adhesive skin adhering side of said transparent film layer such that said openings in said absorbent fiber and fabric tape layers are in alignment, and said absorbent fiber layer shares the same outer periphery shape and size of said transparent film layer; the absorbent fiber layer void of adhesive is thereby held proximal to the skin by the said adhesive transparent film layer in the central opening and continually adjoining the skin beyond the said absorbent fiber layer by the said adhesive fabric tape layer extending beyond the shared outer periphery of the said absorbent fiber and adhesive film layers.

3. A self adherent dermal wound window dressing for the protection of an indwelling catheter access site, and which provides the simultaneous absorption and continuous mitigation of moisture vapor, visualization of the skin/cannula exit point and mechanical securement of the indwelling catheter, the window dressing comprising:

a fabric tape layer having an adhesive skin adhering side and an opposite non-adhesive side; said fabric tape layer having an opening therein to allow viewing therethrough;

a semipermeable transparent film layer closing said opening in said fabric tape layer and having an adhesive skin adhering side and an opposite non-adhesive side; said film layer non-adhesive side being adhered on the adhesive side of said fabric layer around said opening such that said fabric layer extends beyond the periphery of said transparent film layer; and

an absorbent fiber layer having an opening generally corresponding to said opening in said fabric tape layer, said fiber layer being mounted on the adhesive skin adhering side of said transparent film layer such that said openings in said absorbent fiber and fabric tape layers are in alignment, and the outer perimeter of said absorbent fiber layer is unequal in size to said transparent adhesive film layer and extends beyond at least one edge of said film layer concurrently contacting and adhering to the adhesive side of the larger said adhesive fabric tape layer;

the absorbent fiber layer void of adhesive is thereby held proximal to the skin by the said adhesive transparent film layer in the central opening, and by the larger said adhesive fabric tape layer continually adjoining the skin beyond the said fiber layer concurrently contacting and adhering to the said fiber layer extending beyond at least one edge of said transparent film layer.

4. A self adherent dermal wound window dressing for the protection of an indwelling catheter access site, and which provides the simultaneous absorption and continuous mitigation of moisture vapor, visualization of the skin/cannula exit point and mechanical Securement of the indwelling catheter, the window dressing comprising:

a fabric tape layer having an adhesive side and an opposite non-adhesive side; said fabric tape layer having an opening therein to allow viewing therethrough;

a semipermeable transparent film layer void of adhesive closing said opening in said fabric tape layer and having a periphery greater than a periphery of said opening and less that a periphery of said fabric tape layer; and

an absorbent fiber layer void of an adhesive having an opening generally corresponding to said opening in said fabric tape layer, said fiber layer being mounted on the adhesive side of said fabric tape layer such that said openings in said absorbent fiber and fabric tape layers are in alignment and said absorbent fiber layer extends beyond the periphery of said transparent film layer and said fabric tape layer extends beyond the periphery of said absorbent fiber layer.

5. The self adherent window dressing as in any of claims 1 - 4 wherein said fabric tape layer comprises a nonwoven polyester material.

6. The self adherent window dressing as in any of claims 1 - 4 wherein said tape non-adhesive side has a textural surface.

7. The self adherent window dressing as in any of claims 1 - 4 wherein said tape layer non-adhesive side includes a water repellant coating.

8. The self adherent window dressing as in any of claims 1 - 4 wherein said transparent film layer comprises a semipermeable polyurethane material.

9. The self adherent window dressing as in any of claims 1 - 4 wherein said absorbent fiber layer has a scalloped edge around its said opening therein.

10. The self adherent window dressing as in any of claims 1 - 4 including at least one removable central cut portion of one of a fabric tape layer and absorbent fiber layer held in place and attached only at the periphery of the opening and capable of being removed easily from the opening by the end user to allow viewing through the opening; the removable central cut portion being protected on the adhesive side by a release backing generally corresponding in size and shape to the removable central cut portion and being valuable as a portion of fabric tape or absorbent fiber layer.

11. The self absorbent window dressing as in any of claims 1 - 4 including a label portion removably mounted along an outside edge of the dressing.

Assignments (8)