Flexible covering for reducing moisture/vapor/bacteria transmission
AssigneeComfortex Corporation
InventorDonald M. Salyards
Life of this patent
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Abstract
A flexible covering for reducing vapor transmission to a core of a mattress includes outer and inner coverings respectively forming first and second moisture/vapor/bacteria barriers, the outer and inner coverings being formed of materials having a flexibility sufficient to reduce tissue pressures which cause the formation of pressure sores on the body of a patient. The material of the outer and inner coverings comprise one of a woven and/or non-woven materials having or forming a vapor barrier such that the outer and inner coverings have a vapor transmission of less than 10.7 grams per hour per meter.sup.2. According to one embodiment of the present invention, the covering forms an integral part of the mattress or forms an envelope covering the core thereof.
Claims20
A flexible covering for reducing moisture/vapor/bacteria transmission to a core of a mattress comprising:
- an outer covering for forming a first moisture/vapor/bacteria barrier, the outer covering having a flexibility sufficient to reduce tissue pressures which cause the formation of body sores;
- and
- an inner covering for forming a second moisture/vapor/bacteria barrier, the inner covering being positioned between the outer covering and the core of the mattress and having a flexibility substantially equal to the flexibility of the outer covering;
- wherein the outer and inner coverings are made of materials selected such that vapor transmission through both the outer and inner coverings is less than about 10.7 grams/hr/m.sup.2 at a temperature of about 99 degrees F. and a relative humidity of about 85%.
A sanitary and therapeutic mattress comprising:
- a core;
- an outer covering for forming a first moisture/vapor/bacteria barrier, the outer covering having a flexibility sufficient to reduce tissue pressures which cause the formation of body sores;
- and
- an inner covering for forming a second moisture/vapor/bacteria barrier, the inner covering being positioned between the outer covering and the core of the mattress and having a flexibility substantially equal to the flexibility of the outer covering;
- wherein the outer and inner coverings are made of materials selected such that moisture vapor transmission through both the outer and inner coverings is less than about 10.7 grams/hr/mz at a temperature of about 99 degrees F and a relative humidity of about 85%.
Dependencies are inferred from the claim text.