Bleach Compatible Polyolefin Mattress Cover
AssigneeUnisoft Medical Corporation
InventorsKevin P. Conway, Stacey duBell Mileti, Robert J. Mileti
Life of this patent
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Abstract
A bleach compatible mattress cover made of a non-woven polyolefin material and defining an interior cavity. The interior cavity configured to receive a mattress structure which may include a first and second support structure disposed in the interior cavity. In certain embodiments, the mattress cover has a Moisture Vapor Transfer Rate of greater than or equal 400 to less than 10,000, 7500 or more particularly less than 5000 grams per square meter per day and a hydrostatic head of 100 cm or greater and passes ASTM 1670 and
Claims36
A mattress cover comprising:
- a cover member defining a cavity configured to receive a support structure therein;
- top and bottom panels of said cover member, wherein said top panel is made of a non-woven bleach compatible polyolefin material having a moisture vapor transfer rate (MVTR) of at least 400 grams per square meter per day and a hydrostatic head which is greater than 100 cm such that the MVTR and hydrostatic head of the material creates a cover which is breathable but impervious enough to inhibit liquids, bacteria and viruses from passing through the top panel of the cover;
- said top and bottom panels sealed around at least 60% of a periphery thereof to create said cavity.
A single patient use mattress cover comprising:
- a bleach compatible cover comprising a non-woven polyolefin material which is configured to secure around a mattress;
- the non-woven polyolefin material passes ASTM 1670 and 1671 tests and has a moisture vapor transfer rate (MVTR) of at least 400 but less than 7500 grams per square meter per day and a hydrostatic head which is greater than 100 cm.
A single patient use mattress comprising:
- a cover member defining an interior cavity configured to receive a support structure therein;
- the support structure being a fluid retaining bladder which is configured to connect to a pump which modifies a fluid pressure in the fluid retaining bladder and the support structure is made entirely of one or more non-porous materials;
- a top portion of said cover is made of a non-woven bleach compatible polyolefin material having a moisture vapor transfer rate (MVTR) between about 500-7500 grams per square meter per day and a hydrostatic head which is greater than about 100 cm;
- wherein the support structure is surrounded by said cover member and retained in the interior cavity such that the support structure is irremovable from said cover.
A method of manufacturing a mattress with a cover comprising:
- providing a first thermoplastic material;
- providing a second thermoplastic material, which is a non-woven bleach compatible polyolefin material;
- sealing said first thermoplastic material at a first seal along at least one edge thereof to create a first cavity which retains a fluid pressure therein, the first seal comprising two layers of said first thermoplastic material;
- sealing said second thermoplastic material to create a second cavity which surrounds said first cavity;
A mattress comprising:
- a fluid retaining bladder which comprises at least first and second panels of material heat sealed together by thermal impulse welding;
- a cover which comprises at least third and fourth panels of material sealed by thermal impulse welding to create a cavity which surrounds said fluid retaining bladder, at least one of the third and fourth panels is a non-woven bleach compatible material;
- the fluid retaining bladder configured to connect to a pump to inflate said bladder.
Dependencies are inferred from the claim text.