EP0068668A1 - Fauteuil pour invalide - Google Patents

Fauteuil pour invalide Download PDF

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Publication number
EP0068668A1
EP0068668A1 EP82302926A EP82302926A EP0068668A1 EP 0068668 A1 EP0068668 A1 EP 0068668A1 EP 82302926 A EP82302926 A EP 82302926A EP 82302926 A EP82302926 A EP 82302926A EP 0068668 A1 EP0068668 A1 EP 0068668A1
Authority
EP
European Patent Office
Prior art keywords
section
seat
chair
invalid
frame
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.)
Withdrawn
Application number
EP82302926A
Other languages
German (de)
English (en)
Inventor
Clive Graham Williams
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.)
Individual
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 EP0068668A1 publication Critical patent/EP0068668A1/fr
Withdrawn legal-status Critical Current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
    • A61G5/006—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
    • 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
    • A61G5/125—Rests specially adapted therefor, e.g. for the head or the feet for arms
    • 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
    • A61G5/128—Rests specially adapted therefor, e.g. for the head or the feet for 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
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/104—Devices for lifting or tilting the whole wheelchair

Definitions

  • the present invention relates to an invalid chair, and in particular to an invalid chair the configuration of which can be adjusted when occupied.
  • slings can be used. This involves securing the patient in a sling, jacking the patient up by attaching the sling to a small mobile crane device, moving the sling over the place to which the patient is to be transferred, and then lowering the patient and removing the sling. Patients find this procedure distressing, and staff find it time consuming. Therefore this procedure is not often used.
  • an invalid chair comprising a back section, a seat section, and a frame which supports the back and seat sections, characterised in that the back section is pivotable relative to the frame about an axis located above the level of the seat section, the back section being pivotable between an upright position and a lowered position, and the seat section is connected to the back section by a linkage which causes the seat section to move upwards and forwards as the back section is pivoted towards the lowered position, whereby the configuration of the chair can be altered to that of a couch when the chair is occupied.
  • the seat and back sections are pivotally connected.
  • the linkage may comprise a flexible link connected at one end to the seat section and connected at the other.end to the back section, the link extending around at least one pulley mounted on the frame.
  • the link can be arranged such that it extends from its point of attachment to the seat section upwards and forwards to pass around a first pulley mounted on the frame, backwards from the first pulley to pass around a second pulley mounted on the frame, and upwards from the second pulley to its point of attachment to the back section, the point of attachment to the back section being in between the back section pivot axis and the seat section.
  • Preferably two flexible links are provided one on each side of the chair.
  • Outriggers may be pivotally mounted on the frame above each wheel, a linkage interconnecting each outrigger to a common actuating means operation of which causes each outrigger to pivot into contact with the surface on which the chair is supported to thereby immobilize the chair.
  • the seat section may be pivotally connected to two leg support sections the angular position of which relative to the seat section can be adjusted.
  • the leg support sections may be pivotally connected to respective foot support sections the angular positions of which relative to the leg support sections can be adjusted.
  • the chair may be converted to the couch configuration by pulling on the top of the back section.
  • Return to the chair configuration may be controlled by a hydraulic piston and cylinder arrangement having a bypass circuit which may be opened by a suitably located lever.
  • a patient may be transferred to or from a bed by a simple horizontal movement.
  • Figs. 1, 2 and 3 schematically illustrate the basic structure of the chair which comprises a back section 1, a seat section 2, two leg support sections 3 and two foot rest sections 4.
  • the back 1 is supported on horizontally aligned pivots 5 (Fig. 3) fixed to a rigid tubular steel main frame having sides defined by vertical struts 6 and horizontal cross struts 7.
  • the two frame sides are interconnected by further horizontal struts (not shown).
  • the seat.2 is hinged to the back 1 by hinge 8 and to the leg supports 3 by hinges 9, and the foot rests 4 are hinged to the leg supports 3 by hinges 10.
  • the seat 2 comprises a rigid subframe 11 to either side of which are welded downwardly extending support arms defined by struts 12 and 13. The ends of the struts 12 and 13 are welded together so as to define with the subframe a strong triangular assembly.
  • Two pairs of pulley wheels 14 and 15 are pivotally mounted on suitable supports rigidly secured to the main frame, one pair of wheels being located on each side of the chair.
  • a cable 16 is secured at one end to a subframe 17 of the chair back 1 and at the other end to the support arm defined by struts 12 and 13. The arrangement is such that one cable 16 is provided on each side of the chair, each cable lying in a vertical plane. The space below the seat 2 and between the support arms is completely free. Handles are also secured to the subframe 17 at a convenient height for pushing the chair.
  • a hydraulic cylinder 18 is pivotally connected at its ends to the main frame 6 and to the chair back subframe 17.
  • the cylinder is arranged such that its piston can be extended freely but retracted only if a lever 19 controlling a hydraulic bleed valve (not shown) is released.
  • a one way valve and bypass channel controlled by the lever can be arranged to provide this sort of operation.
  • the wheels 20 can be locked and then the top of the back 1 can be pulled back and down towards the intermediate position shown in dashed lines in Fig. 3 and labelled 21.
  • the weight of the patients upper torso counterbalances the weight of the patients lower torso to a certain extent so that the physical effort required is not excessive.
  • the back 1 swings about pivots 5, pushing the hinge 8 and the seat 2 forwards and upwards. As the seat 2 moves upwards, so too do the struts 12, 13.
  • the distance between the back subframe 17 and pulley 14 increases, the distance between the pulleys 14 and 15 is fixed, and therefore the cable pulls the struts12, 13 towards the pulley 15.
  • the seat 2 therefore remains horizontal. Further pulling down of the seat back 1 moves the chair to the configuration shown in dashed lines in Fig. 3 and labelled 22, in which the back 1 and seat 2 are both horizontal and level with padded arms 23 of the chair.
  • the relative orientation of the seat 2 and leg supports 3 is not altered automatically by movement of the chair back 1.
  • the leg supports 3 may however be independently pulled upwards to any desired position.
  • a mechanism described below can be provided to automatically adjust the angle between the supports 3 and foot rests 4 as the supports are pulled up so that when the supports 3 are in line with the seat 2 so too are the foot rests
  • a patient can be moved from a sitting position to a horizontal elevated position simply and without undue stress or strain to either the medical staff or the patient.
  • the level of the chair arms By arranging for the level of the chair arms to be the same as that of a hospital bed, a patient can be transferred to and from bed by a simple horizontal movement, avoiding any lifting.
  • the lever 19 is depressed and hydraulic fluid can flow through a bypass channel at a controlled rate.
  • the weight of the patient causes the chair to move at a slow rate towards the sitting position. This movement can be stopped when desired simply by releasing the lever 19.
  • a range of ancillary equipment can be carried on the chair.
  • a pin can be inserted into a hole in the seat subframe between a patients legs to prevent the patient from slipping out of the chair.
  • a table, small tray, bookstand or hand rest can be mounted on the chair arms.
  • a side rail can be mounted on the chair arms to prevent a patient rolling off when the chair is in its couch configuration, and a drip support can be mounted on the main frame.
  • any other ancillary equipment such as fluid receiving bags, oxygen bottles etc. can also be supported on the frame.
  • the chair seat can accommodate a commode normally covered by a padded seat panel. As the mechanism of the chair does not occupy the area beneath the commode, the chair can be wheeled backwards over a lavatory or a disposable container can be placed in the commode.
  • the chair wheels are locked before the chair configuration is altered by actuation of locking mechanisms associated with each of the four wheels.
  • This obviously requires access to each wheel which can cause problems if for example the chair is positioned up against the side of a bed.
  • the locking mechanisms may not be fully effective or may accidentally not be actuated at all. This is a serious matter as, particularly with an overweight patient, it is necessary to make the chair feel very solid if the patient is to be happy about using the chair.
  • Figs. 4, 5 and 6 show an arrangement which enables the chair to be completely immobilized.
  • An outrigger 24 is mounted on a horizontal pivot 25 supported on the chair frame 26 above each wheel 27. (The wheels 27 are not shown in Fig. 6).
  • the outrigger is welded to a lever 28 connected by a push rod 29 to an actuating lever 30 welded to a pivot bar 31 supported by the chair frame.
  • the pivot bar extends across the width of the chair and is welded to an actuating lever 30 on both sides of the chair.
  • All four outriggers can be actuated by one lever from either side of the chair.
  • Each wheel can swivel through 360 0 to make the chair highly manoeuverable.
  • Fig. 4 shows the immobilizing device in its released position
  • Figs. 5 and 6 show the device having immobilized the chair, each wheel having been lifted off the floor so that all the weight of the chair is taken by the outriggers.
  • Figs. 7 and 8 are side and rear views of a chair frame suitable for supporting the arrangement of Figs. 4 to 6. Brackets 32 receive the outriggers 24 and the pivot bar 31 is supported in a bearing 33.
  • the illustrated frame is designed to accommodate a flexible linkage of the type shown in Fig. 3, pulleys equivalent to pulleys 14 and 15 being mounted on pivots 34 and 35 respectively.
  • a pivot 36 is provided to support the chair back.
  • the two sides of the chair are interconnected by cross struts 37 indicated by dotted lines in Fig. 7.
  • the entire frame is fabricated from square section tube with the exception of the portion 38 (Fig. 7) which is a flat bar.
  • the leg supports 3 are welded to tubes 39 one of which is shown in Fig. 11.
  • a member 40 is welded to an extension 41 of the subframe of the seat 2 and inserted into the tube 39.
  • Another member 42 is welded to the seat subframe midway across the width of the seat. This member defines a bore into which is inserted a pin 43 extending from a member 44 welded inside the tube 39.
  • the facing surfaces of the members 42 and 44 are notched to define a ratchet.
  • a ring 45 is secured inside the tube 39 and a compression spring 46 bears against the ring and a face of the member 40 to bias the tube towards the right in Fig. 11.
  • the ratchet teeth are arranged such that, looking along the axis of the tube 39 from the left in Fig. 11, the tube 39 can be rotated anticlockwise only with the ratchet engaged.
  • the leg support which is secured to tube 39 can be pulled up but is prevented from falling by the ratchet. If it is desired to lower the leg support, the support is simply pushed to the left in Fig. 11 against the force of the spring, thereby releasing the ratchet.
  • the other leg support is mounted in a similar manner, the ratchet teeth again being arranged to permit the pulling up of the support.
  • the leg support 3 can pivot about axis 47 relative to the seat 2, and the foot rest 4 can pivot relative to the leg support 3 about axis 48.
  • two rods 49 are positioned between the leg supports, each rod connecting a support 50 rigidly connected to the seat subframe to a support rigidly connected to a respective one foot rest 4.
  • the spacing and position of the pivot points between the rods 49 and the leg supports 3 are such that the foot rests 4 are always parallel to the seat 2.
  • the rods 49 are connected to the foot rests 4 by quick-release linkage to enable the orientation of the foot rests to be adjusted.
  • a tie bar 52 mounted to pivot about axis 53 is normally held in a stowed position by a magnet 54 but can be used to lock the foot rest 4 in a variety of positions as shown in Fig. 10.
  • the side panels on either side of the seat 2 may be rigid with the main frame, or may be arranged to fold down to bridge the space between the chair and another chair, for example a car seat, or may be entirely removable. This makes it easier for a patient to move himself or be moved to another chair.
  • the chair side panels and the sides of the main frame are preferably filled in by covering panels to prevent the hands of the occupant of the chair from being trapped in the mechanism.
  • the seat and back of the chair may incorporate inflatable bags which could be inflated to a pressure to suit a particular patient's requirement.
  • the seat could be provided with one bag and the back could be provided with three bags spaced apart from the top to the bottom of the back to support the lumbar region, the shoulders and the head respectively.
  • the top bag could be in two sections to provide support to either side of the patients head.
  • the seat could be covered by a porous fabric so that warm air could be passed into the interior of the covering. This air could pass out through the fabric to both warm and ventilate the patient.
  • the chair could be motorised if desired to enable a patient to manoeuvre the chair and/or to drive various components of the mechanism which enables the chair to be converted from one configuration to another.
  • the leg supports could be driven cyclically up and down to exercise a patients legs.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Special Chairs (AREA)
  • Invalid Beds And Related Equipment (AREA)
EP82302926A 1981-06-18 1982-06-08 Fauteuil pour invalide Withdrawn EP0068668A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8118716 1981-06-18
GB8118716 1981-06-18

Publications (1)

Publication Number Publication Date
EP0068668A1 true EP0068668A1 (fr) 1983-01-05

Family

ID=10522589

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82302926A Withdrawn EP0068668A1 (fr) 1981-06-18 1982-06-08 Fauteuil pour invalide

Country Status (2)

Country Link
EP (1) EP0068668A1 (fr)
GB (1) GB2101884A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2219198A (en) * 1988-05-31 1989-12-06 James Paul Lansing Adjustable bed table
US20220249307A1 (en) * 2019-03-18 2022-08-11 Dan-Rehab A/S A Reclining Chair and Method of Use Thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6390554B1 (en) 1999-11-23 2002-05-21 1239907 Ontario Limited Weight positioning reclining seat kit for wheelchairs

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1650826A (en) * 1924-07-24 1927-11-29 Fargo Edwin Foldable wheel chair
US2133471A (en) * 1936-06-30 1938-10-18 Dougias Aircraft Company Inc Adjustable chair
US2690788A (en) * 1945-01-24 1954-10-05 Ames Butler Portable support
AT241047B (de) * 1963-05-10 1965-06-25 Dominic Habsburg-Lothringen Sitz- und Liegemöbel
DE1218657B (de) * 1961-04-21 1966-06-08 Niels Peter Edmund Christensen Krankenhausbett
GB1099197A (en) * 1965-10-04 1968-01-17 Bunyan John An improved invalid chair
FR2155717A5 (fr) * 1972-09-22 1973-05-18 Meyer Wilhelm
US4119342A (en) * 1977-04-29 1978-10-10 Jones Claude C Convertible chair structure

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1650826A (en) * 1924-07-24 1927-11-29 Fargo Edwin Foldable wheel chair
US2133471A (en) * 1936-06-30 1938-10-18 Dougias Aircraft Company Inc Adjustable chair
US2690788A (en) * 1945-01-24 1954-10-05 Ames Butler Portable support
DE1218657B (de) * 1961-04-21 1966-06-08 Niels Peter Edmund Christensen Krankenhausbett
AT241047B (de) * 1963-05-10 1965-06-25 Dominic Habsburg-Lothringen Sitz- und Liegemöbel
GB1099197A (en) * 1965-10-04 1968-01-17 Bunyan John An improved invalid chair
FR2155717A5 (fr) * 1972-09-22 1973-05-18 Meyer Wilhelm
US4119342A (en) * 1977-04-29 1978-10-10 Jones Claude C Convertible chair structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2219198A (en) * 1988-05-31 1989-12-06 James Paul Lansing Adjustable bed table
US4910816A (en) * 1988-05-31 1990-03-27 Jvj Enterprises, Inc. Adjustable bed table
US20220249307A1 (en) * 2019-03-18 2022-08-11 Dan-Rehab A/S A Reclining Chair and Method of Use Thereof

Also Published As

Publication number Publication date
GB2101884A (en) 1983-01-26

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE DE FR NL

17P Request for examination filed

Effective date: 19830705

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19841027