US 5,447,492 A · External fixation dressing for accommodating a retaining pin

Abstract

A flexible external fixation dressing product contains a clear hydrogel material in a gel-like phase. The fixation dressing product is comprised of several layers including a thin-film top layer, optional backing layer, optional support layer, hydrogel layer, and optional release liner, and is adapted for use around the retaining pins of an external fixation device. The thin-film top layer may define a center portion and a perimeter portion. The backing layer, support layer and hydrogel material are positioned in the center portion of the thin-film top layer. The porous backing layer is formed of a porous material having sufficient porosity that the backing layer can be secured to the hydrogel material without the use of an adhesive. During manufacture, the dressing product is assembled and a substantially centered opening and a slit are cut. The opening and slit extend through all layers of the dressing and may also extend through the release liner, if included. The slit extends from an outer edge of the dressing and intersects the opening.

Claims30

Dependent claims

An external fixation dressing for bandaging the area around an external fixation retaining pin, comprising:

a thin-film top layer having a first side and a second side;
an adhesive layer positioned on said second side of said top
a hydrogel layer having a first side and a second side, said first side of side hydrogel layer being positioned on said adhesive layer such that said adhesive layer resides between said top layer and said hydrogel layer, said dressing defining a substantially centered opening which extends through said top layer, said adhesive layer, and said hydrogel layer, wherein said opening is defined by a C-shaped cut having a hinged portion, the diameter of said opening being sized to receive a retaining pin.

An external fixation dressing for bandaging the area around an external fixation retaining pin, comprising:

a thin-film top layer having a first side and a second side and defining a perimeter portion and a center portion;
a first adhesive layer positioned on said second side of said top layer;
a backing layer having a first side and a second side, said first side of backing layer being adhered to said second side of the top layer by means of said first adhesive layer;
a hydrogel layer having a first side and a second side, said first side of said hydrogel layer being positioned on said second side of said backing layer;
and
a support layer having a first side and a second side and comprising a permeable fabric having a plurality of interstices therewithin;
said support layer secured to said first side of said hydrogel layer and located between said hydrogel layer and said backing layer;
wherein said hydrogel layer penetrates said interstices to said first side of said support layer such that said hydrogel layer resides on both said first side and said second side of said support layer;
said support layer being adjacent to said second side of said backing layer;
said dressing defining a substantially centered opening and a slit which extends from an outer edge of said dressing intersects said opening;
said opening and said slit extending through said top layer, said first adhesive layer, said backing layer, said support layer, and said hydrogel layer, said opening being defined by a C-shaped cut having a hinged portion;
said top layer, said backing layer, said support layer, and said hydrogel layer being appropriately sized such that said top layer, said backing layer, said support layer, and said hydrogel layer reside entirely within said center portion of said second side of said top layer.

9 more elements

An external fixation dressing for bandaging the area around an external fixation retaining pin, comprising:

a thin-film top layer having a first side and a second side and defining a perimeter portion and a center portion;
a first adhesive layer positioned on said second side of said top layer;
a backing layer having a first side and a second side, said first side of said backing layer being adhered to said second side of the top layer by means of said first adhesive layer;
a hydrogel layer having a first side and a second side, said first side of said hydrogel layer being positioned on said second side of said backing layer;
and
a support layer having a first side and a second side and comprising a permeable fabric having a plurality of interstices therewithin;
said support layer secured to said first side of said hydrogel layer and located between said hydrogel layer and said backing layer;
wherein said hydrogel layer penetrates said interstices to said first side of said support layer such that said hydrogel layer resides on both said first side and said second side of said support layer;
said support layer being adjacent to said second side of said backing layer;
said dressing defining a substantially centered opening and a slit which extends from an outer edge of said dressing intersects said opening;
said opening and said slit extending through said top layer, said first adhesive layer, said backing layer, said support layer, and said hydrogel layer, said opening being defined by an asterisk-shaped plurality of intersecting cuts;
said top layer, said backing layer, said support layer, and said hydrogel layer being appropriately sized such that said top layer, said backing layer, said support layer, and said hydrogel layer reside entirely within said center portion of said second side of said top layer.

9 more elements

Dependencies are inferred from the claim text.

External fixation dressing for accommodating a retaining pin

Life of this patent

External fixation dressing for accommodating a retaining pin

Life of this patent

Abstract

Claims30