EP0841888A1 - Deambulateur ameliore - Google Patents

Deambulateur ameliore

Info

Publication number
EP0841888A1
EP0841888A1 EP95939189A EP95939189A EP0841888A1 EP 0841888 A1 EP0841888 A1 EP 0841888A1 EP 95939189 A EP95939189 A EP 95939189A EP 95939189 A EP95939189 A EP 95939189A EP 0841888 A1 EP0841888 A1 EP 0841888A1
Authority
EP
European Patent Office
Prior art keywords
walker
arms
column
arm
lifting
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Withdrawn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
EP95939189A
Other languages
German (de)
English (en)
Inventor
Michael John Leslie
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 EP0841888A1 publication Critical patent/EP0841888A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H3/00—Appliances for aiding patients or disabled persons to walk about
    • A61H3/04—Wheeled walking aids for disabled persons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H3/00—Appliances for aiding patients or disabled persons to walk about
    • A61H3/04—Wheeled walking aids for disabled persons
    • A61H2003/046—Wheeled walking aids for disabled persons with braking means

Definitions

  • This invention relates to an improved walking frame, more particularly to a walking frame for invalids, disabled people or post-operative patients.
  • walkers Units which assist a person having a limited mobility to walk are commonly known as "walkers", and various types of such walkers are known.
  • United States Patent No's 4,187,169, 5,151 ,813, and AU55439/86 show examples of walkers which have adjustment for height of the handles, armrests or shoulder support members. It is also known to incorporate a seat on various of such units.
  • United States Patent No 4,443,902 illustrates a walker in which the supporting arms can be power lifted and lowered so that the patient can, by the use of appropriate controls, raise and lower themselves from sitting to standing positions as desired.
  • the arms are pivoted to a single vertical post and an upwardly extending screw jack engages the arms intermediate their length to raise and lower the arms in an arcuate manner. While this walker would be satisfactory in some respects, the degree of lift appears to be limited, and also all the forces applied to the arms are transmitted to the central supports, and if in the event that all these lifting forces are applied to one arm, severe stresses are applied to the central supports.
  • United States Patent No 4,968,050 describes a mobile stander in the form of a wheel chair having power means whereby a patient can be raised from a reclining position to a standing position.
  • this unit is not adapted to be used as a walker.
  • a mobile walker having a base supported on wheels with a central column extending upwardly from the base.
  • the walker includes a pair of spaced channel members, a carriage movable in the spaced channel members and carrying its upper end support arms.
  • Power means are provided for moving said carriage in the central column, whereby a person by being supported on the arms may be raised from a seating position to a walking position, and be able to use the walker as an aid to walking and then be lowered to a seating position.
  • a further object of the invention is to provide a mobile walker which provides more desirable lifting action to the patient by moving the patient in the desire movement from sitting to a standing position and vice versa.
  • a still further object of the invention is to provide a walker in which the patient has greater control over the movement of the lifting and lowering motions of the walker.
  • a mobile walker comprising a generally upwardly extending column supported on wheels, a pair of arms extending from the upper end of the column, power means for rotating said arms in an arc to and from a lower position to upper position, each said arm having a lifting portion for lifting a user of the walker, and each said arm bein so constructed whereby the lifting portion maintains its same orientation durin the raising and lowering action.
  • the arms be of linkage construction such as a pantograph o parallel linkage
  • the arms are connected to a sleeve rotatable in a mounting memb in the column, each sleeve being interconnected with drive means whereby the sleeves are displaced along their axes so that the spacing between the arms can be varied.
  • the wheels are supported on legs which are adjustable so that the distance between the legs can be varied.
  • FIGURE 1 is a side view of the walker, portions being omitted in the sake of clarity,
  • FIGURE 2 is an end view of the walker
  • FIGURE 3 is a plan view of the leg adjustment mechanism
  • FIGURE 4 is an illustration of one form of arm width adjustment mechanism.
  • the walker 1 has a generally vertical column 2 supported by a pair of front castor wheels 3 and at the rear by wheels 4 on legs 5 pivoted on pivots 6 on the base 7 of the column 2.
  • Each arm 8 comprises a pair of parallel links 10 joined at their outer ends by a link 11 connected to pivots 12.
  • the handle 9 is shown connected to the upper portion of the link 11 , but it will be realised that the handle may be connected at other positions along the link 11.
  • the handle or lifting portion to be grasped by the user remains horizontal or remains at the same orientation relative to the user if the handle is adjusted to be at an angle to the horizontal, during the upward and downward movement of the arms.
  • Each parallel link 10 is connected to the outer end of a respective slide tube 13 mounted in bores 14 in mounting plate 15.
  • the inner ends of the slide tubes are closed by a bung 16 to each of which is connected a lever 17, which levers are interconnected by a connecting link 18 by pivots 19 thus completing the parallel linkage arrangement.
  • the lower levers 17 are extended to provid universal pivots 20.
  • the drive for the operation of the lifting arms comprises an electric motor 21 mounted on the end of a linear actuator 22, the other end of the linear actuator being pivoted to the upper end of the column by pivot 23.
  • the motor end of th liner actuator is attached to a bridging member 24 in turn pivoted by links 25 t the frame of the column 2.
  • the links 25 have universal pivots 26 to which are pivoted connecting links 27 connected at their upper ends to the universal pivots 20 on the lower levers 17.
  • FIG 1 shows the two extreme positions of the operation of the linear actuator and the position of the lifting arms.
  • the slide tubes 13 are movable to position the arms 10 in two positions 10(a) and 10(b) as shown in FIG 2. As noted above each slide tube is closed at its inner end with the bung 16.
  • the bung 16 on the right hand slide tube has a central threaded hole with a thread of one hand, and the bung on the left hand side has a corresponding aperture threaded with a thread of opposite hand.
  • Connecting the two slide tubes through the respective bungs 16 is a screw 28 divided into two threaded portions, the two portions having threads of opposit hand corresponding to the hands of the threads of the bungs 16.
  • the two upper slide tubes 13 have a screw 28 interconnecting the two slides and the lower slide tubes 13 have a second screw interconnecting the respective slides.
  • the drive mean can be by belt or chain and sprocket, ensuring that both screws are simultaneously driven.
  • the links 25 by virtue of the universal pivots, which are preferably ball joints, are able at the upper ends to move with the sleeves as shown in the drawings.
  • the electric motors 21 and 36 are supplied with power from a battery 37, suitable controls being conveniently located on the walker, preferably on the upper portion thereof.
  • the legs 5 can be adjusted in spacing there between. As noted previously the legs 5 are pivoted to the base of the column by pivots 6. To each leg there is attached a lever 38 to which are pivoted links 39 each connected to the opposite ends of a lever 40 pivoted to the base of the column.
  • the linkage thus formed is termed a Watts linkage and ensures that the two legs simultaneously move towards or away from each other.
  • a reversible electric motor and actuator 41 is positioned between the levers 38, the electric motor being connected to one lever 38 and the actuator connected to the other lever 38 so that operation of the electric motor 41 will move the legs either toward or away from each other to allow the legs to be positioned as desired for stability or to straddle a wheel chair or the like.
  • the legs can be positioned close to each other so that the walker can easily pass through doorways and other narrow openings.
  • all the electric motors are 12 volt D.C. motors and controlled by a 12 volt D.C. system. It is preferred that a micro-processor monitors all control logic, battery levels and the optimum recharging of two maintenance free lead- acid batteries.
  • the whole unit can be constructed for reliable and safe operation in wet areas and shower rooms. Also there is preferably provided an audible alarm for low battery conditions (eg below 50%) as well as LED battery status indicators.
  • the power supply has master on/off switches and also switches itself off, should it be left unused for a preset period of time.
  • a main circuit board and membrane switches positioned at the top of the column for ease of operation of the user or handler.
  • the control panel preferably has controls and an indicator of the charging rate.
  • a plug-pack type of charger not kept in the walker.
  • the lifting portions of the arms can be positioned under the arm pits of the user or alternatively a sling fibreglass chain or other attachment can be attached to and lifted by the arms.
  • a handle can be provided to be grasped by the user when in the walking mode.
  • the controls can be conveniently located on the top of the column for convenient operation. Also a braking system is provided so that the walker can be braked so that it does not move particularly during the lifting and lowering actions.
  • the wheels on the base of the column are preferably braked, the control or brake level being provided on the top of the walker and positioned as desired.
  • a robust, light weight walking frame/hoist capable of lifting a 160 kg person from as low as 350 mm above floor height up to a full 21.85 metre standing height, or any point in between.
  • the unit can be used alone by the patient or with the assistance of a handler, carer or nurse, this being used in combination with a fabric sling or fibreglass toilet/shower seat attachment which can be attached to the arms.
  • Operation of the machine is controlled by either UP/DOWN buttons on the top of the device, or by a remote ergonomically shaped hand control. Also the controls or some of the controls can be positioned on or adjacent the handles. Upon release of either the UP or DOWN buttons the machine stops promptly and remains rigid at the required height. At extreme low battery levels, UP operation may not be available and only DOWN may be available.

Abstract

Un déambulateur mobile à fonction de levage (1) comprend une paire de bras allongés (8) permettant d'aider l'utilisateur à passer de la position assise à la position debout. Chaque bras comporte une partie de levage (9) qui se place sous les aisselles, ou auquel une bretelle ou un siège peut être fixé. La partie de levage (9) des bras (8) demeure parallèle au sol au cours du mouvement de levage. Ce déambulateur comprend des roues (3) de sorte que l'utilisateur puisse marcher tout en étant soutenu par le dispositif.
EP95939189A 1994-12-06 1995-12-06 Deambulateur ameliore Withdrawn EP0841888A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPM9887/94 1994-12-06
AUPM9887A AUPM988794A0 (en) 1994-12-06 1994-12-06 Improved walking frame
PCT/AU1995/000823 WO1996017575A1 (fr) 1994-12-06 1995-12-06 Deambulateur ameliore

Publications (1)

Publication Number Publication Date
EP0841888A1 true EP0841888A1 (fr) 1998-05-20

Family

ID=3784397

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95939189A Withdrawn EP0841888A1 (fr) 1994-12-06 1995-12-06 Deambulateur ameliore

Country Status (5)

Country Link
EP (1) EP0841888A1 (fr)
AU (1) AUPM988794A0 (fr)
CA (1) CA2206822A1 (fr)
NZ (1) NZ296497A (fr)
WO (1) WO1996017575A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1007777C2 (nl) * 1997-12-12 1999-06-15 Konijn Nicolaas G Rolsteun.
AUPQ298499A0 (en) * 1999-09-20 1999-10-14 Zeljko, Josip A mobility aid
CN101647745B (zh) * 2009-09-18 2011-01-19 上海交通大学 带座椅的助行机器人
CN112353599B (zh) * 2020-11-09 2022-04-29 赵秋芬 手术室护理装置
CN112957239B (zh) * 2021-03-30 2023-08-25 安徽哈工标致医疗健康产业有限公司 高度可调的辅助步行训练装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2991485A (en) * 1956-08-27 1961-07-11 Frederick J Schulte Invalid's apparatus
BE864590A (fr) 1977-03-10 1978-09-06 Inst Francais Du Petrole Procede et appareil de mise en oeuvre de reactions catalytiques a trois phases
US4443902A (en) 1981-07-06 1984-04-24 Baer Richard K Invalid walker and transfer device
GB8315121D0 (en) * 1983-06-02 1983-07-06 James Ind Ltd Invalid hoist
US4968050A (en) 1988-10-11 1990-11-06 Luconex, Inc. Mobile prone stander having adjustable axis of inclination
JP2715527B2 (ja) 1989-03-14 1998-02-18 ソニー株式会社 立体形状形成方法
FR2653009B1 (fr) * 1989-10-16 1992-02-14 Support Systems International Appareil de levage ou de transport de patients ou de personnes handicapees.
AU679727B2 (en) * 1993-05-04 1997-07-10 Air Lift Pty. Ltd. Walking frame

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9617575A1 *

Also Published As

Publication number Publication date
CA2206822A1 (fr) 1996-06-13
AUPM988794A0 (en) 1995-01-05
NZ296497A (en) 1998-06-26
WO1996017575A1 (fr) 1996-06-13

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