CA2353208A1 - Air-powered low interface pressure support surface - Google Patents

Air-powered low interface pressure support surface Download PDF

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Publication number
CA2353208A1
CA2353208A1 CA002353208A CA2353208A CA2353208A1 CA 2353208 A1 CA2353208 A1 CA 2353208A1 CA 002353208 A CA002353208 A CA 002353208A CA 2353208 A CA2353208 A CA 2353208A CA 2353208 A1 CA2353208 A1 CA 2353208A1
Authority
CA
Canada
Prior art keywords
patient support
layer
set forth
support system
mattress
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002353208A
Other languages
French (fr)
Other versions
CA2353208C (en
Inventor
Wanda J. Totton
Richard W. Raburn
Russell J. Weston
Joseph A. Benedict
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Span America Medical Systems Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2353208A1 publication Critical patent/CA2353208A1/en
Application granted granted Critical
Publication of CA2353208C publication Critical patent/CA2353208C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/05—Parts, details or accessories of beds
    • A61G7/057—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor
    • A61G7/05769—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with inflatable chambers
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C21/00—Attachments for beds, e.g. sheet holders, bed-cover holders; Ventilating, cooling or heating means in connection with bedsteads or mattresses
    • A47C21/04—Devices for ventilating, cooling or heating
    • A47C21/042—Devices for ventilating, cooling or heating for ventilating or cooling
    • A47C21/044—Devices for ventilating, cooling or heating for ventilating or cooling with active means, e.g. by using air blowers or liquid pumps
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/002—Mattress or cushion tickings or covers
    • A47C27/005—Mattress or cushion tickings or covers liquid-impermeable
    • A47C27/006—Mattress or cushion tickings or covers liquid-impermeable breathable
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/002—Mattress or cushion tickings or covers
    • A47C27/007—Mattress or cushion tickings or covers permeable to liquid or air in a special way
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/08—Fluid mattresses or cushions
    • A47C27/10—Fluid mattresses or cushions with two or more independently-fillable chambers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/05—Parts, details or accessories of beds
    • A61G7/057—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor
    • A61G7/05769—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with inflatable chambers
    • A61G7/05776—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with inflatable chambers with at least two groups of alternately inflated chambers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/05—Parts, details or accessories of beds
    • A61G7/057—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor
    • A61G7/05784—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with ventilating means, e.g. mattress or cushion with ventilating holes or ventilators
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/05—Parts, details or accessories of beds
    • A61G7/057—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor
    • A61G7/05784—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with ventilating means, e.g. mattress or cushion with ventilating holes or ventilators
    • A61G7/05792—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with ventilating means, e.g. mattress or cushion with ventilating holes or ventilators with low air loss function, e.g. in mattresses, overlays or beds

Abstract

This invention generally relates to mattresses and mattress coverlets f or preventing, reducing, and/or treating decubitus ulcers, also known as pressu re sores or bedsores. More particularly, this invention concerns therapeutic mattresses or mattress coverlets capable of transferring or dissipating moisture vapor and heat from a patient's skin.

Claims (27)

WHAT IS CLAIMED IS:
1. A patient support system for the prevention and treatment of decubitus ulcers, said patient support system comprising:
a multi-piece foam mattress shell housing a plurality of air cells;
a multi-layer mattress topper encasing said foam mattress shell;
a multi-layer mattress coverlet, said coverlet providing a low air loss feature;and an external control system.
2. A patient support system as set forth in claim 1, wherein said plurality of air cells are oriented from head-to-foot within said foam mattress shell,
A patient support system as set forth in claim 1, wherein said multi-layer mattress topper comprises three layers.
4. A patient support system as set forth in claim 3, wherein said three layers of said multi-layer mattress topper comprise:
a first layer of a water-proof, vapor-impermeable material;
a middle layer of a non-crushable, three-dimensional fabric; and a third layer of a water-proof, vapor-impermeable material, wherein said external control system provides a continuous stream of air through said middle layer.
5. A patient support system as set forth in claim 4, wherein said first and said third layers are welded together about their periphery and are spot welded in numerous locations to control billowing.
6. A patient support system as set forth in claim 5, wherein said third layer further forms a zippered sheath for encasing said foam mattress shell and its associated air cells.
7. A patient support system as set forth in claim 1, wherein said multi-layer mattress coverlet comprises two layers.
8. A patient support system as set forth in claim 7, wherein said two layers of said mattress coverlet comprise:
an upper layer of a high moisture vapor transfer rate material; and a lower layer of a non-crushable, three-dimensional fabric, wherein said external control system provides an airflow through said lower layer when said mattress coverlet's low air loss feature is desired.
9. A patient support system as set forth in claim 8, wherein said upper layer is perforated to enhance said high moisture vapor transfer rate.
10. A patient support system as set forth in claim 8, wherein said upper and lower layers of said mattress coverlet are sewn together to form a unitary piece.
11. A patient support system as set forth in claim 10, wherein said two layer mattress coverlet has an elasticized band sewn about its perimeter for form-fitting about a patient support surface.
12. A patient support system as set forth in claim 1, wherein said external control system is a fully self contained unit for providing inflationary airflows to said air cells, said middle layer of said mattress topper and said bottom layer of said mattress coverlet.
13. A patient support system as set forth in claim 12, wherein said external control system houses a plurality of pumps for providing said inflationary airflows.
14. A patient support system as set forth in claim 13, wherein said plurality of pumps operate independently so as to allow alternate or simultaneous use of said air cells and mattress topper, as well as, said low air loss feature of said mattress coverlet.
15. A patient support system for the prevention and treatment of decubitus ulcers, said patient support system comprising:
a multi-piece foam mattress shell housing a plurality of air cells;
a multi-layer mattress coverlet, said coverlet providing a low air loss feature and encasing said foam mattress shell; and an external control system~
16. A patient support system as set forth in claim 15, wherein said plurality of air cells are oriented from side-to-side within said foam mattress shell.
17. A patient support system as set forth in claim 15, wherein said multi-layer mattress coverlet comprises three layers.
18. A patient support system as set forth in claim 17, wherein, said three layers of said multi-layer mattress coverlet comprise:
a first layer of a high moisture vapor transfer ratio material;
a middle layer of a non-crushable, three-dimensional fabric; and a third layer of a water-proof, vapor-impermeable material, wherein said external control system provides a continuous stream of air through said middle layer.
19. A patient support system as set forth in claim 18, wherein said third layer further forms a zippered sheath for encasing said foam mattress shell and its associated air cells.
20. A patient support system as set forth in claim 19, wherein said first and said third layers are welded together about generally the entire periphery and are spot welded in numerous locations to control billowing.
21. A patient support system as set forth in claim 18, wherein said first layer is perforated to enhance said high moisture vapor transfer rate.
22. A patient support system as set forth in claim 15, wherein said external control system is a fully self-contained unit for providing inflationary airflows to said air cells and said middle layer of said mattress coverlet.
23. A patient support system as set forth in claim 22, wherein said external control system houses a plurality of pumps for providing said inflationary airflows.
24. A patient support system as set forth in claim 23, wherein said plurality of pumps operate independently so as to allow alternate or simultaneous use of said air cells and said low air loss feature of said mattress coverlet.
25. A multi-layered low air loss mattress coverlet for the prevention and treatment of decubitus ulcers, said coverlet comprising:
a first layer of a material with a high moisture vapor transfer rate;
a middle layer of a non-crushable three-dimensional fabric material;
a third layer of a material that is water-proof and vapor-impermeable;
and an external airflow source.
26. A low air loss mattress coverlet as set forth in claim 25, wherein said external airflow source provides an airflow through said middle layer to remove warm moist air from around said coverlet's contact points with a patient.
27. A low air loss mattress coverlet as set forth in claim 26, wherein said mattress coverlet may be modularly applied to various patient support surfaces including mattresses, wheelchair/seating cushions, and/or patient positioners.
CA2353208A 2000-07-18 2001-07-18 Air-powered low interface pressure support surface Expired - Lifetime CA2353208C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US21907400P 2000-07-18 2000-07-18
US60/219,074 2000-07-18

Publications (2)

Publication Number Publication Date
CA2353208A1 true CA2353208A1 (en) 2002-01-18
CA2353208C CA2353208C (en) 2010-12-14

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Family Applications (1)

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CA2353208A Expired - Lifetime CA2353208C (en) 2000-07-18 2001-07-18 Air-powered low interface pressure support surface

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CA (1) CA2353208C (en)

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US20170027791A1 (en) 2017-02-02
US6782574B2 (en) 2004-08-31
US20140208520A1 (en) 2014-07-31
US20050022308A1 (en) 2005-02-03
US20020073489A1 (en) 2002-06-20
US10722041B2 (en) 2020-07-28
US10827844B2 (en) 2020-11-10
US7296315B2 (en) 2007-11-20
US20170007482A1 (en) 2017-01-12
US20070234481A1 (en) 2007-10-11

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