US4614000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Patient undersheet for preventing bed sores
Assignee: PACON MANUFACTURING CORP A CORP OF NJ
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Filing: 1984-06-19
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Granted: 1986-09-30
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Expires: 2004-06-19
Abstract
Abstract A patient care undersheet includes a minimum number of support points in order to keep a bedridden patient from developing decubitus ulcers. The undersheet preferably comprises a bottom layer having a number of conically shaped bubble-like supports and a top layer comprising a non-woven fabric. An adhesive material connects the non-woven fabric to the bubble-like supports in such a manner that under pressure the bubble-like supports under pressure do not move with respect to each other. The bubble-like supports are air tight so that the undersheet does not collapse under the pressure of a patient's body. The area of contact of the top of the bubble-like supports to the non-woven fabric is approximately 40% of the total top surface of the undersheet. A patient only has to move a very small distance before a new area of skin is supported by the undersheet.
Inventors
- 👤 Nathan Mayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:49
CPC Classifications
A; A61; A61F; A61F13/00; A61G; A61G7/00; A61G7/05; A61G7/057; A61F2013/00361; A61F2013/00365; A61F2013/00387; A61F2013/00404; A61F2013/00727; A61F2013/00731; A61F2013/00744; A61F13/15; A61F2013/15008; A61F2013/15024; A61F13/51; A61F13/514; A61F13/51474; A61F2013/51486; A61F2013/51492; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24562; Y10T428/24628; Y10T428/24661
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
145 words
An undersheet apparatus for the prevention of bed sores in bedridden patients, said apparatus comprising: a base layer having a plurality of substantially air tight bubble-like supports each having a top which is relatively smaller than a bottom and cone-shaped sides, the bottoms of said bubble-like supports being connected together such that the diameter of the top of said bubble-like supports is approximately 3/16", the distance between the top and bottom of said bubble-like supports is approximately 3/16" and the diameter of the bottom of said bubble-like supports is approximately 1/4", said bubble-like supports being formed from a polyethylene material having a laminated structure comprising at least two layers; a relatively porous upper layer comprising a sheet of non-woven material, the air resistance of said upper layer being approximately 2%; and, adhesive means for attaching said upper layer to the top of said bubble-like supports.
Claim 2
Dependent Claim
145 words
An undersheet apparatus for the prevention of bed sores in bedridden patients, said apparatus comprising: a base layer having a plurality of substantially air tight bubble-like supports each having a top which is relatively smaller than a bottom and cone-shaped sides, the bottoms of said bubble-like supports being connected together such that the diameter of the top of said bubble-like supports is approximately 3/16", the distance between the top and bottom of said bubble-like supports is approximately 3/16" and the diameter of the bottom of said bubble-like supports is approximately 1/4", said bubble-like supports being formed from a polyethylene material having a laminated structure comprising at least two layers; a relatively porous upper layer comprising a sheet of non-woven material, the air resistance of said upper layer being approximately 2%; and, adhesive means for attaching said upper layer to the top of said bubble-like supports.
Claim 3
Dependent Claim
147 words
An undersheet apparatus for the prevention of bed sores in bedridden patients, said apparatus comprising: a base layer having a plurality of bubble-like supports each having a closed top and a bottom and a side, the bottoms of said bubble-like supports being connected together; a relatively porous upper layer having an air resistance of approximately 2%; and, adhesive means for attaching said upper layer to the top of said bubble-like support so that air channel circulation means are formed between said upper layer and said base layer for circulating air through said porous upper layer, a plurality of patient contact areas being formed substantially at the locations where said upper layer is ahdesively connected to the tops of said bubble-like supports, wherein said patient contact areas carry substantially all of the force exerted by the patient on the apparatus thereby producing a massaging-like stimulation of said patient.
Claim 4
Dependent Claim
147 words
An undersheet apparatus for the prevention of bed sores in bedridden patients, said apparatus comprising: a base layer having a plurality of bubble-like supports each having a closed top and a bottom and a side, the bottoms of said bubble-like supports being connected together; a relatively porous upper layer having an air resistance of approximately 2%; and, adhesive means for attaching said upper layer to the top of said bubble-like support so that air channel circulation means are formed between said upper layer and said base layer for circulating air through said porous upper layer, a plurality of patient contact areas being formed substantially at the locations where said upper layer is ahdesively connected to the tops of said bubble-like supports, wherein said patient contact areas carry substantially all of the force exerted by the patient on the apparatus thereby producing a massaging-like stimulation of said patient.
Claim 5
Dependent Claim
15 words
The apparatus of claim 2 wherein: said upper layer comprises a sheet of non-woven material.
Claim 6
Dependent Claim
30 words
The apparatus of claim 3 wherein: the area of the top of said bubble-like supports is between 20% and 60% of the total surface area of said porous upper layer.
Claim 7
Dependent Claim
25 words
The apparatus of claim 4 wherein: the distance between the top and bottom of said bubble-like supports is in the range of 1/8" to 1/4".
Claim 8
Dependent Claim
23 words
The apparatus of claim 5 wherein: the diameter of the top of said bubble-like supports is in the range of 1/8" to 3/8".
Claim 9
Dependent Claim
23 words
The apparatus of claim 6 wherein: the diameter of the bottom of said bubble-like supports is in the range of 3/16" to 1/2".
Claim 10
Dependent Claim
16 words
The apparatus of claim 7 wherein: the interiors of said bubble-like supports are substantially air tight.
Claim 11
Dependent Claim
25 words
The apparatus of claim 8 wherein: said bubble-like supports have cone-like shaped sides and wherein said top is relatively smaller in diameter than said bottom.
Claim 12
Dependent Claim
24 words
The apparatus of claim 9 wherein: said bubble-like supports are formed from a polyethylene material having a laminated structure comprising at least two layers.
Claim 13
Dependent Claim
27 words
The apparatus of claim 10 wherein: the area of the top of said bubble-like supports comprises apporoximately 40% of the total surface area of said upper layer.
Claim 14
Dependent Claim
18 words
The apparatus of claim 11 wherein: the diameter of the top of said bubble-like supports is approximately 3/16".
Claim 15
Dependent Claim
20 words
The apparatus of claim 12 wherein: the distance between the top and the bottom of said bubble-like supports is 3/16".
Claim 16
Dependent Claim
18 words
The apparatus of claim 13 wherein: the diameter of the bottom of said bubble-like supports is approximately 1/4".
Claim 17
Dependent Claim
12 words
The apparatus of claim 2 wherein: said bubble-like supports have cylindrical sides.
Claim 18
Dependent Claim
153 words
An undersheet apparatus for the prevention of bed sores in bedridden patients, said apparatus comprising: a base layer having a plurality of bubble-like supports each having a closed top and a bottom and a side, the bottoms of said bubble-like supports being connected together; a highly porous upper layer which permits air to pass from said base layer through said upper layer; and, adhesive means for attaching said upper layer to the top of said bubble-like support so that air channel circulation means are formed between said upper layer and said base layer for circulating air through said porous upper layer, a plurality of patient contact areas being formed substantially at the locations where said upper layer is adhesively connected to the tops of said bubble-like supports, wherein said patient contact areas carry substantially all of the force exerted by the patient on the apparatus thereby producing a massaging-like stimulation of said patient.
Claim 19
Dependent Claim
153 words
An undersheet apparatus for the prevention of bed sores in bedridden patients, said apparatus comprising: a base layer having a plurality of bubble-like supports each having a closed top and a bottom and a side, the bottoms of said bubble-like supports being connected together; a highly porous upper layer which permits air to pass from said base layer through said upper layer; and, adhesive means for attaching said upper layer to the top of said bubble-like support so that air channel circulation means are formed between said upper layer and said base layer for circulating air through said porous upper layer, a plurality of patient contact areas being formed substantially at the locations where said upper layer is adhesively connected to the tops of said bubble-like supports, wherein said patient contact areas carry substantially all of the force exerted by the patient on the apparatus thereby producing a massaging-like stimulation of said patient.
Claim 20
Dependent Claim
139 words
An undersheet apparatus for the prevention of bed sores in bedridden patients, said apparatus comprising: a base layer having a plurality of bubble-like supports each having a closed top and a bottom and a side, the bottoms of said bubble-like supports being connected together; an upper highly air-porous layer; adhesive means for attaching said upper layer to the top of said bubble-like supports so that air channel circulation means are formed between said upper layer and said base layer for circulating air through said porous upper layer, a plurality of patient contact areas being formed substantially at the locations where said upper layer is adhesively connected to the tops of said bubble-like supports, wherein said patient contact areas carry substantially all of the force exerted by the patient on the apparatus thereby producing a massaging-like stimulation of said patient.
Claim 21
Dependent Claim
139 words
An undersheet apparatus for the prevention of bed sores in bedridden patients, said apparatus comprising: a base layer having a plurality of bubble-like supports each having a closed top and a bottom and a side, the bottoms of said bubble-like supports being connected together; an upper highly air-porous layer; adhesive means for attaching said upper layer to the top of said bubble-like supports so that air channel circulation means are formed between said upper layer and said base layer for circulating air through said porous upper layer, a plurality of patient contact areas being formed substantially at the locations where said upper layer is adhesively connected to the tops of said bubble-like supports, wherein said patient contact areas carry substantially all of the force exerted by the patient on the apparatus thereby producing a massaging-like stimulation of said patient.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-09-29 | 1990-03-31 | 1990-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-29 | 1994-03-31 | 1994-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-29 | 1998-03-31 | 1998-09-30 | $7700.00 | Window Closed / Lapsed |