CA2464074A1 - Method programming and operating a wheelchair having tilt and recline functions - Google Patents

Method programming and operating a wheelchair having tilt and recline functions Download PDF

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Publication number
CA2464074A1
CA2464074A1 CA002464074A CA2464074A CA2464074A1 CA 2464074 A1 CA2464074 A1 CA 2464074A1 CA 002464074 A CA002464074 A CA 002464074A CA 2464074 A CA2464074 A CA 2464074A CA 2464074 A1 CA2464074 A1 CA 2464074A1
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CA
Canada
Prior art keywords
recline
angle
tilt
controller
actuator
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
CA002464074A
Other languages
French (fr)
Other versions
CA2464074C (en
Inventor
James M. Koerlin
Mark E. Greig
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 (US) LLC
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 CA2464074A1 publication Critical patent/CA2464074A1/en
Application granted granted Critical
Publication of CA2464074C publication Critical patent/CA2464074C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
    • A61G5/041—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven having a specific drive-type
    • A61G5/045—Rear wheel drive
    • 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
    • A61G5/006—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs convertible to stretchers or beds
    • 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
    • A61G5/1056—Arrangements for adjusting the seat
    • A61G5/1067—Arrangements for adjusting the seat adjusting the backrest relative to the seat portion
    • 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
    • A61G5/1056—Arrangements for adjusting the seat
    • A61G5/107—Arrangements for adjusting the seat positioning the whole seat forward or rearward
    • 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
    • A61G5/1056—Arrangements for adjusting the seat
    • A61G5/1075—Arrangements for adjusting the seat tilting the whole seat backwards
    • 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
    • A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
    • 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
    • A61G2203/00—General characteristics of devices
    • A61G2203/30—General characteristics of devices characterised by sensor means
    • A61G2203/42—General characteristics of devices characterised by sensor means for inclination
    • 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
    • A61G2203/00—General characteristics of devices
    • A61G2203/70—General characteristics of devices with special adaptations, e.g. for safety or comfort
    • A61G2203/74—General characteristics of devices with special adaptations, e.g. for safety or comfort for anti-shear when adjusting furniture

Abstract

A method of operating a wheelchair during an un-recline process involves a wheelchair having tilt and recline functions, the wheelchair including a sea t frame (18), a tilt actuator for tilting the seat frame (18), a back frame (22), a recline actuator for reclining the back frame (22). A sensor for determining the angle of recline is provided. A controller for controlling t he tilt actuator and recline actuator is also provided. A controller for controlling the tilt actuator and recline actuator is also provided. The controller is provided with a plurality of preprogrammed sequences for movin g the seat frame (18) and the back frame (22) during an unrecline procedure. T he sequences include tilting the seat frame (18) as an initial part of the unrecline sequence, wherein the sequences are a function of the initial angl e of recline at the initiation of the recline sequence. An initial angle of recline at the initiation of a recline sequence is determined, and the back frame (22) is unreclined according to one of the preprogrammed sequences in response to the determined initial angle of recline.

Claims (9)

1. The method of operating a wheelchair having tilt and recline functions, the wheelchair including a seat frame, a tilt actuator for tilting the seat frame, a back frame, a recline actuator for reclining the back frame, a sensor for determining the angle of recline, and a controller for controlling the tilt actuator and recline actuator, the method comprising:

programming the controller with a plurality of preprogrammed sequences for moving the seat frame and the back frame during an unrecline procedure, the sequences including tilting the seat frame as an initial part of the unrecline sequence, wherein the sequences are a function of the initial angle of recline at the initiation of the recline sequence;

determining an initial angle of recline at the initiation of a recline sequence; and unreclining the back frame according to one of the preprogrammed sequences in response to the determined initial angle of recline.
2. The method of claim 1 in which the preprogrammed sequences for greater initial angles of recline provide for greater amounts of tilt of the seat frame during the unrecline procedure than the amounts of tilt provided for in the preprogrammed sequences for lesser angles of initial angles of recline.
3. The method of operating a wheelchair having a recline function, the wheelchair including a back frame, a recline actuator for reclining the back frame, a recline sensor for determining the angle of recline, and a controller for controlling the recline actuator, the controller having a memory device, the method comprising:

determining an initial angle of recline of the wheelchair with the recline sensor, and storing data corresponding to the determined initial angle of recline in the memory device;

moving the back frame to a different angle of recline; and returning the back frame to the initial angle of recline by controlling the recline actuator in response to the stored data corresponding to the initial angle of recline.
4. The method of claim 3 including providing an input device for a wheelchair operator, the input device being connected to the controller and the input device having a switch signaling the controller to return the back frame to the initial angle of recline.
5. The method of claim 3 in which the wheelchair includes a seat frame, a tilt actuator for tilting the seat frame, and a tilt sensor for determining the angle of tilt, the method further comprising:

determining an initial angle of tilt of the seat frame with the tilt sensor, and storing data corresponding to the determined initial angle of tilt in the memory device;
moving the seat frame to a different angle of tilt; and returning the seat frame to the initial angle of tilt by controlling the tilt actuator in response to the stored data corresponding to the initial angle of tilt.
6. The method of operating a wheelchair having a recline function, the wheelchair including a back frame, a recline actuator for reclining the back frame, a recline sensor for determining the angle of recline, and a controller for controlling the recline actuator, the controller having a memory device, the method comprising:
selecting a plurality of angles of recline of the back frame, and storing data corresponding to the selected angles of recline in the memory device;

providing an input device for a wheelchair operator, the input device being connected to the controller and the input device having a plurality of switches operatively connected to the controller; and programming the controller to associate each of the selected angles of recline with one of the switches so that activating each switch causes the controller to access the stored data and return the back frame to the selected angle of recline associated with the switch.
7. The method of claim 6 in which the wheelchair also includes a seat frame, a tilt actuator for tilting the seat frame, and a tilt sensor for determining the angle of tilt, the method further comprising:

sensing an angle of tilt of the seat frame corresponding with each of the plurality of selected of angles of recline of the back frame, and storing data corresponding to the sensed angles of tilt in the memory device, wherein the stored data includes a link between each selected angle of recline and its corresponding angle of tilt; and programming the controller so that activating each switch not only returns the back frame to the selected angle of recline associated with the switch, but also returns the seat frame to the angle of tilt linked to the corresponding angle of recline.
8. The method of operating a wheelchair having tilt and recline functions, the wheelchair including a seat frame, a tilt actuator for tilting the seat frame, a back frame, a recline actuator for reclining the back frame, a sensor for determining the angle of recline, and a controller for controlling the tilt actuator and recline actuator, the method comprising:

programming the controller with a preprogrammed unrecline sequence for moving the seat frame and the back frame during an unrecline procedure, the unrecline sequence including tilting the seat frame as an initial part of the unrecline sequence;
programming the controller with a threshold recline angle, above which the unrecline procedure follows the preprogrammed unrecline sequence, and below which the unrecline procedure involves unreclining the back frame without tilting the seat frame;

determining an initial angle of recline at the initiation of unrecline sequences during operation of the wheelchair;

comparing the initial angle of recline with the threshold angle; and unreclining the back frame in response to the comparison of the initiation angle with the threshold angle.
9. The method of claim 8 including providing the controller with a capability for modifying the threshold angle.
CA2464074A 2001-10-19 2002-10-10 Method programming and operating a wheelchair having tilt and recline functions Expired - Lifetime CA2464074C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/040,279 2001-10-19
US10/040,279 US6715784B2 (en) 2000-05-31 2001-10-19 Method programming and operating a wheelchair having tilt and recline functions
PCT/US2002/032455 WO2003034967A2 (en) 2001-10-19 2002-10-10 Method programming and operating a wheelchair having tilt and recline functions

Publications (2)

Publication Number Publication Date
CA2464074A1 true CA2464074A1 (en) 2003-05-01
CA2464074C CA2464074C (en) 2010-07-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA2464074A Expired - Lifetime CA2464074C (en) 2001-10-19 2002-10-10 Method programming and operating a wheelchair having tilt and recline functions

Country Status (8)

Country Link
US (1) US6715784B2 (en)
EP (1) EP1436157B1 (en)
AT (1) ATE374705T1 (en)
AU (1) AU2002347862A1 (en)
CA (1) CA2464074C (en)
DE (1) DE60222791T2 (en)
NO (1) NO20041692L (en)
WO (1) WO2003034967A2 (en)

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US10314751B2 (en) * 2014-03-04 2019-06-11 Levo Ag Wohlen Stand-up wheelchair
US10874566B2 (en) * 2014-03-04 2020-12-29 Levo Ag Wohlen Stand up wheelchair

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AU2002347862A1 (en) 2003-05-06
NO20041692L (en) 2004-04-26
WO2003034967A2 (en) 2003-05-01
EP1436157B1 (en) 2007-10-03
WO2003034967A3 (en) 2003-07-31
US6715784B2 (en) 2004-04-06
CA2464074C (en) 2010-07-27
ATE374705T1 (en) 2007-10-15
EP1436157A2 (en) 2004-07-14
US20030090089A1 (en) 2003-05-15
DE60222791T2 (en) 2008-07-17
EP1436157A4 (en) 2006-01-11

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