US 4,959,059 AGranted

Low friction multilayer pad

AssigneeSenecare Enterprises, Inc.

InventorsKasriel Eilender, Mille Stand

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Abstract

This invention involves a multilayer low friction ambulatory pad for treating or preventing bedsores and pressure sores, and for managing fluids discharged from a person's body. The pad may have the form of a diaper with panels fittable to a person's body. The pad has a first slippery nonporous layer on which is a moisture absorbent second layer. A slippery, thin, porous third layer is on the second layer. The three layers are peripherally bonded to form a nonpenable seam which permits unbonded areas of the layers to slide slightly with respect to each other. The third layer may be sprayed with a filmy, dry, slippery fourth layer. A fifth layer of lubricating material which may be a microencapsulated lubricant or a free lubricant is applied to the third and fourth layers to form a very slippery top surface. The fourth and fifth layers do not clog the pores of the third layer to pass air and fluids to the absorbent second layer. In other pads, the absorbent layer is omitted. All pads can be shaped to fit various portions of a person's body to which the pads can be attached. The pads can be discarded after a single use.

Claims18

Dependent claims

A pad for preventing and treating pressure sores on a person's body and for managing discharged body fluids, comprising:

an outer first layer formed of thin, nonporous, moistureproof, flexible sheet material having a smooth outer side for abutting a supporting surface, and having a smooth other side;
a second layer formed of soft, porous, moisture absorbent material superimposed on said other side of said first layer to absorb and retain said fluids;
a third layer formed of thin, porous, smooth, fibrous sheet material superimposed on said second layer for passing said fluids through pores in said third layer to said second layer for absorption thereby;
a fourth layer composed of dry, slippery material formed as an extremely thin filmy coating on said third layer, said coating having sufficient body to reduce the coefficient of friction of said third layer, and having sufficient thinness to leave said pores in said third layer unclogged to pass said fluids therethrough;
a fifth layer formed of lubricating material applied to said third and fourth layers and effective to provide a very slippery surface thereat to minimize sliding friction and shear forces between said person's body and said supporting surface, said fifth layer being so applied that said pores in said third layer remain unclogged so that said fluids can pass freely to and through said pores to said second layer for absorption thereby;
and
means nondetachably bonding together registering marginal areas of said first, second and third layers in a continuous seam all around their joined peripheries to allow limited sliding movement between unbonded areas of said layers, while said first, second, third, fourth and fifth layers cooperate to minimize sliding friction and shear forces between said person's body and said supporting surface with said pad disposed therebetween.

4 more elements

A pad for preventing and treating pressure sores on a person's body, and for managing discharged body fluids, comprising:

an outer first layer formed of thin, nonporous, moistureproof, flexible sheet material having a slippery outer side for abutting a supporting surface, and having a smooth other side;
a second layer formed of soft, porous, moisture absorbent material superimposed on said other side of said first layer to absorb and retain said fluids;
a third layer formed of thin, porous, slippery, low friction, fibrous sheet material superimposed on said second layer for passing said fluids through pores in said third layer to said second layer for absorption thereby;
a fourth layer formed of lubricating material applied to said third layer and effective to reduce sliding friction and shear forces between said body and said supporting surface, said lubricating material being so applied that said pores remain unclogged so that said fluids can pass freely to and through said pores of said third layer to said second layer;
and
means nondetachably bonding together registering marginal edges of said first, second and third layers in a continuous seam all around their peripheries to allow limited sliding movements between unbonded areas of layers, while said first, second, third and fourth layers cooperate to minimize sliding friction and shear forces between said person's body and said supporting surface.

3 more elements

A pad for preventing and treating pressure sores on a person's body, comprising:

a first layer formed of thin, slippery, nonporous, moistureproof, flexible sheet material having a smooth side for abutting a supporting surface, and having a smooth other side;
a second layer formed of thin, porous, low friction, fibrous material superimposed on said other side of said first layer;
a third layer composed of dry, slippery material forming an extremely thin film coating on said second layer with sufficient body to reduce the coefficient of friction of said second layer, but with sufficient thinness to leave pores in said second layer unclogged;
a fourth layer formed of lubricating material applied to said second and third layers and effective to reduce sliding friction and shear forces between said person's body and said supporting surface while leaving pores in said second layer unclogged;
and
means nondetachably bonding together registering marginal areas of said first and second layers in a continuous seam all around their peripheries, to allow limited sliding movements between said first and second layers, while said first, second, third and fourth layers cooperate to minimize sliding friction and shear forces between said person's body and said supporting surface with said pad disposed therebetween.

3 more elements

Dependencies are inferred from the claim text.