CA2256623A1 - Wheelchair seat assembly with contoured seat pan and cushion and method - Google Patents

Wheelchair seat assembly with contoured seat pan and cushion and method

Info

Publication number
CA2256623A1
CA2256623A1 CA002256623A CA2256623A CA2256623A1 CA 2256623 A1 CA2256623 A1 CA 2256623A1 CA 002256623 A CA002256623 A CA 002256623A CA 2256623 A CA2256623 A CA 2256623A CA 2256623 A1 CA2256623 A1 CA 2256623A1
Authority
CA
Canada
Prior art keywords
foam member
seat base
user
seat
pouch
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
CA002256623A
Other languages
French (fr)
Other versions
CA2256623C (en
Inventor
Pamela C. Debellis
Grant C. Denton
John C. Dinsmoor, Iii
Richard R. Runkles
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.)
Sunrise Medical HHG Inc
Original Assignee
Sunrise Medical Hhg Inc.
Pamela C. Debellis
Grant C. Denton
John C. Dinsmoor, Iii
Richard R. Runkles
Jay Medical Ltd.
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 Sunrise Medical Hhg Inc., Pamela C. Debellis, Grant C. Denton, John C. Dinsmoor, Iii, Richard R. Runkles, Jay Medical Ltd. filed Critical Sunrise Medical Hhg Inc.
Publication of CA2256623A1 publication Critical patent/CA2256623A1/en
Application granted granted Critical
Publication of CA2256623C publication Critical patent/CA2256623C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1091—Cushions, seats or abduction devices
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/029—Seat parts of non-adjustable shape adapted to a user contour or ergonomic seating positions
    • 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
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1043—Cushions specially adapted for wheelchairs
    • 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
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1043—Cushions specially adapted for wheelchairs
    • A61G5/1045—Cushions specially adapted for wheelchairs for the seat portion

Abstract

A seat assembly (21) for a wheelchair including a relatively rigid seat base (12) of substantially uniform thickness with an upwardly facing contoured top surface (14) and a cushion assembly mounted on the seat base.
The cushion assembly includes a relatively soft foam member (30) substantially covering the seat base (12) for localized deformation of the foam member and for communication of the influence of contours on the seat base (12) through the foam member (30) to the user. In the preferred form, a flexible pouch (40) having a viscous fluid-like material contained therein is positioned in a recess (38) in the foam member (30) in the area of the user's ischial tuberosities and coccyx, and a water-impervious, flexible elastomeric envelope (50) completely surrounds the foam member (30) and the fluid-containing pouch (40). The fluid pouch (40) has a size greater than the plan area of recess (38) in the foam member (30) and is placed in a semi-collapsed condition in the recess so as to be displaceable without hammocking. Additionally, elastomeric envelope (50) has a sheet area greater than the area of the semi-collapsed fluid pouch (40) to ensure that the envelope (50) does not hammock under the user's weight. Finally, a hydrophobic cover (60) can be mounted over the cushion assembly and to the seat base (12).
A method of supporting a user on a wheelchair seat assembly is also disclosed.
CA002256623A 1996-05-28 1997-02-27 Wheelchair seat assembly with contoured seat pan and cushion and method Expired - Fee Related CA2256623C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/654,102 1996-05-28
US08/654,102 US5857749A (en) 1996-05-28 1996-05-28 Wheelchair seat assembly with contoured seat pan and cushion and method
PCT/US1997/003299 WO1997045039A1 (en) 1996-05-28 1997-02-27 Wheelchair seat assembly with contoured seat pan and cushion and method

Publications (2)

Publication Number Publication Date
CA2256623A1 true CA2256623A1 (en) 1997-12-04
CA2256623C CA2256623C (en) 2006-06-06

Family

ID=24623440

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002256623A Expired - Fee Related CA2256623C (en) 1996-05-28 1997-02-27 Wheelchair seat assembly with contoured seat pan and cushion and method

Country Status (6)

Country Link
US (2) US5857749A (en)
EP (1) EP0955845A4 (en)
AU (1) AU2063997A (en)
CA (1) CA2256623C (en)
NO (1) NO323704B1 (en)
WO (1) WO1997045039A1 (en)

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US9132052B2 (en) * 2012-04-12 2015-09-15 Sage Products, Llc Apparatus and method for positioning a seated patient
US9021637B1 (en) * 2012-06-29 2015-05-05 Ki Mobility Wheelchair cushion with adjustable/multi-stiffness fluid
PL2877064T3 (en) 2012-07-27 2019-10-31 Tempur Pedic Man Llc Body support cushion having multiple layers of phase change material
USD697726S1 (en) * 2012-09-20 2014-01-21 Steelcase Inc. Chair
US20150015050A1 (en) * 2013-02-25 2015-01-15 Carol N. Van Zandt Seat Cushion
US9555729B2 (en) * 2013-03-14 2017-01-31 Forsound Corp. Car seat for protecting vertebral column
US9771155B2 (en) * 2013-04-05 2017-09-26 Singapore Technologies Aerospace Ltd Seat pan for a passenger seat and passenger seat
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US9320666B2 (en) * 2014-02-26 2016-04-26 Prs Medical Technologies, Inc. Multi-layered cushioning support
US11191687B2 (en) 2017-04-29 2021-12-07 Harikrishan S. Sachdev Portable cushion and method of use
US10555848B2 (en) 2017-04-29 2020-02-11 Harikrishan S. Sachdev Portable cushion and method of use
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Also Published As

Publication number Publication date
EP0955845A1 (en) 1999-11-17
NO323704B1 (en) 2007-06-25
EP0955845A4 (en) 2000-05-24
US5836654A (en) 1998-11-17
CA2256623C (en) 2006-06-06
WO1997045039A1 (en) 1997-12-04
NO985521L (en) 1999-01-25
NO985521D0 (en) 1998-11-26
US5857749A (en) 1999-01-12
AU2063997A (en) 1998-01-05

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed