U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Transparent hydrogel wound dressing with release tab

Patent 5489262 Issued on February 6, 1996. Estimated Expiration Date: Icon_subject May 5, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3072249

Precision connector for well instrumentation
Patent #: 4646831
Issued on: 03/03/1987
Inventor: Marsh ,   et al.

Hinged end wound dressing
Patent #: 4744355
Issued on: 05/17/1988
Inventor: Faasse, Jr.

Adhesive wound dressings
Patent #: 4753232
Issued on: 06/28/1988
Inventor: Ward

Non-stretching wound dressing and method for making same
Patent #: 4884563
Issued on: 12/05/1989
Inventor: Sessions

Hydrogel wound dressing
Patent #: 4909244
Issued on: 03/20/1990
Inventor: Quarfoot, et al.

Dressing system with reference marks
Patent #: 5000172
Issued on: 03/19/1991
Inventor: Ward

Wound dressing with air permeable bacteria impermeable reservoir
Patent #: 5060642
Issued on: 10/29/1991
Inventor: Gilman

Transparent hydrogel wound dressing
Patent #: 5106629
Issued on: 04/21/1992
Inventor: Cartmell, et al.

Hydrogel burn dressing product
Patent #: 5115801
Issued on: 05/26/1992
Inventor: Cartmell, et al.

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Inventors

Assignee

Application

No. 435298 filed on 05/05/1995

US Classes:

602/57, System for adhesive layer release (e.g., release sheet)206/440, Bandage, drape or dressing206/441, Short strip type602/48, Wound contact layer containing treatment material602/52, Thin polymeric film or adhesive602/58, Backing layer having particular structural feature (e.g., permeability, shaped, or elasticity, etc.)602/900METHOD OF MAKING BANDAGE STRUCTURE

Examiners

Primary: Apley, Richard J.
Assistant: Lee, Kim M.

Attorney, Agent or Firm

International Class

A61F 013/00

Abstract

A flexible, transparent wound dressing product contains a clear hydrogel material in a gel-like phase. The wound dressing product is comprised of several layers including a wound dressing, removable tab and release liner. The removable tab provides a grippable surface to allow for the removal of the release liner from the wound dressing and to facilitate handling of the wound dressing during application to the wound site. The tab may be comprised of a flat, double-coated paper or other suitable material, or a flexible, V-shaped member, and is removable by peeling after the wound dressing is applied. The wound dressing comprises a transparent thin-film layer, a first adhesive layer, backing layer, second adhesive layer, support layer and a hydrogel material. The transparent layer has a center portion and a perimeter portion. The backing layer, support layer and hydrogel material, which together form a reinforced hydrogel patch, are positioned in the center portion of the transparent layer. Since the wound dressing is transparent, a grid pattern may be printed on the backing layer to permit measurement of a wound. During manufacture, the hydrogel patch is assembled in sheet form and subsequently cut to a desired size and shape.

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