WO1994015568A1 - Ameliorations apportees a un elevateur mobile pour patient - Google Patents

Ameliorations apportees a un elevateur mobile pour patient Download PDF

Info

Publication number
WO1994015568A1
WO1994015568A1 PCT/AU1994/000017 AU9400017W WO9415568A1 WO 1994015568 A1 WO1994015568 A1 WO 1994015568A1 AU 9400017 W AU9400017 W AU 9400017W WO 9415568 A1 WO9415568 A1 WO 9415568A1
Authority
WO
WIPO (PCT)
Prior art keywords
carriage
mast
outer mast
mobile patient
lifter according
Prior art date
Application number
PCT/AU1994/000017
Other languages
English (en)
Inventor
Philip Grant Hodges
Original Assignee
U C Medical Products Pty 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 U C Medical Products Pty Ltd filed Critical U C Medical Products Pty Ltd
Priority to AU58296/94A priority Critical patent/AU5829694A/en
Publication of WO1994015568A1 publication Critical patent/WO1994015568A1/fr

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
    • A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1001—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto specially adapted for specific applications
    • A61G7/1011—Picking up from the floor
    • 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
    • A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1013—Lifting of patients by
    • A61G7/1019—Vertical extending columns or mechanisms
    • 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
    • A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/104—Devices carried or supported by
    • A61G7/1046—Mobile bases, e.g. having wheels
    • 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
    • A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1049—Attachment, suspending or supporting means for patients
    • A61G7/1061—Yokes
    • 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
    • A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1063—Safety means
    • A61G7/1067—Safety means for adjustable bases
    • 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
    • A61G2200/00—Information related to the kind of patient or his position
    • A61G2200/30—Specific positions of the patient
    • A61G2200/32—Specific positions of the patient lying
    • 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
    • A61G2200/00—Information related to the kind of patient or his position
    • A61G2200/30—Specific positions of the patient
    • A61G2200/34—Specific positions of the patient sitting
    • 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
    • A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1073—Parts, details or accessories
    • A61G7/1076—Means for rotating around a vertical axis

Definitions

  • This invention relates to an improved mobile patient lifter used for lifting and transporting immobile patients.
  • the jib arm is permanently pivotally attached to the upper end of the mast or column, whilst in other cases, the arm is fixedly secured to a carriage or traveller which is guided for vertical movement along the mast or column internally thereof.
  • the mast or column assembly itself is adjustable in height.
  • an improved mobile patient lifter comprises a mobile chassis, an upstanding mast assembly mounted on the chassis adjacent the rear thereof, said mast assembly comprising a vertical inner mast and a vertical outer mast guided for vertical movement with respect to the inner mast, actuator means for effecting up and down movement of the outer mast relative to the inner mast, a movable carriage on the outer mast and guided for vertical movement externally along the length thereof, lifting means connected to the carriage for moving the carriage with respect to the outer mast, and a lifter arm extending laterally from the carriage and detachably connected thereto, said lifter arm being arranged to move with the carriage upwards or downwards along the outer mast.
  • the actuator means comprises a linear actuator extending upwardly through the inner and outer masts and having its upper end connected to the upper end of the outer mast.
  • the lifting means comprises at least one elongate member, eg a strap or cable, which has one end anchored to the carriage and its other end anchored to the stationary inner mast, the elongate member passing over a roller or sheave carried at or near the upper end of the outer mast, whereby any upward or downward movement of the outer mast results in an additive component of movement of the carriage with respect to the outer mast.
  • This allows the overall height of the lifter to be reduced for a given amount of travel of the lifter arm.
  • the carriage is provided with a pair of rollers on opposite sides thereof, one adjacent an upper edge thereof, the other adjacent a lower edge thereof, said rollers rollingly engaging respective front and rear surfaces of the outer mast as the carriage moves therealong.
  • the chassis comprises an inverted U-shaped transversely extending base frame member which interconnects a pair of spaced apart, horizontal transversely aligned elongate side rails which project forwardly of the base frame member, said base frame member having a bridging portion which is spaced above the ground by a distance sufficient to allow the mobile lifter to move lengthwise of and be positioned over a patient when lying on the ground.
  • each of the side rails is supported at its opposite ends by castor wheels, and the rails are pivotally mounted to enable the rails at the forward end of the chassis to be spread apart.
  • the lifter arm is connected to the carriage by quickly detachable connection means .
  • an operator is able to very quickly detach the cantilevered lifter arm from the mast assembly, and attach a different accessory suspension arm for suspending an accessory therefrom.
  • the quickly detachable connection means comprises a pair of spaced keyhole engaging lugs secured at the inner end of the lifter arm near its upper edge, and which slidably engage within transversely aligned, vertically disposed keyhole shaped openings which are formed in the front wall of the carriage near its upper end.
  • This allows the accessory attachment lifter arm to be easily and quickly mounted on the carriage, and in turn disengaged therefrom.
  • its lower end may slidably locates in a slot-like opening formed adjacent the lower end of the carriage.
  • a quick release safety catch e.g. a spring- loaded latch member, is provided for releasably locking the arm in position and to prevent the attachment lifter arm lifting out under pressure during use of the machine.
  • Fig 1 is a rear elevational view, partly sectioned, of a mobile patient lifter according to this embodiment
  • Fig 2 is a partly sectioned, side elevational view of the lifter shown in Fig 1 with the outer mast, along with the patient support cradle shown in a lowered position;
  • Fig 3 is a view similar to Fig 2 (but unsectioned) showing the outer mast in an elevated position;
  • Fig 4 is a front elevational view of the lifter shown in Fig 1 in its lowered position (but without the lifter arm) ;
  • Fig 5 is a plan view of the lifter shown in Fig 1, with one of the sides of the base frame swung to an outwardly diverging position; whilst
  • Fig 6 is a fragmentary perspective view of the lifter having attached thereto an alternative accessory attachment lifter arm designed to suspend an invalid wheelchair therefrom.
  • a mobile patient lifter 10 comprises a mobile chassis or base frame 11, an upstanding mast assembly 12 projecting upwardly from the base frame 11 adjacent its rear end, a lifter arm 13 projecting forwardly from the mast assembly 12, and a patient support device 14 which in this embodiment comprises a cradle assembly, suspended at the outer free end of the lifter arm 13.
  • a patient support device 14 which in this embodiment comprises a cradle assembly, suspended at the outer free end of the lifter arm 13.
  • the mast assembly 12 comprises a fixed tubular inner mast 15 and a movable hollow outer mast 16 which is arranged to travel up and down along the inner mast 15 and being guided thereby, the movement of the outer mast 16 being effected by means of a known mechanical actuator 20 of the screw type housed within the inner mast 15 and having its upper end coupled to the upper end of the mast 16.
  • the actuator 20 is operated by means of an electric motor 17 housed in housing 18, the motor 17 being energised by means of a battery housed in battery housing 19 supported with respect to the inner mast 15.
  • the battery forms part of a detachable battery pack, whilst the motor housing 18 is removable for ease of maintenance and safety.
  • the outer mast 16 is of hollow rectangular cross- sectional shape being formed of two oppositely facing channel halves which are joined together to form a pair of planar vertical guide surfaces 21, 22 extending along the front and rear walls respectively of the outer mast 16.
  • a movable carriage 23 travels upwards and downwards along the length of the outer mast 16 guided by means of front and rear transverse guide rollers 24, 25 which rollingly engage the front and rear guide surfaces 21, 22 on the mast 16, the rollers 24, 25 being disposed along diagonally opposite edges of the carriage 23.
  • side guide rollers (not shown) on the carriage 23 which co-operate with the opposite side walls of the outer mast for minimising lateral "slop" and to assist in the smooth travel of the carriage 23 along the outer mast 16.
  • the surfaces 21, 22 of the outer mast 16 act as bearing surfaces for the rollers 24, 25.
  • a horizontally mounted transversely extending roller 28 is carried by the outer mast 16 adjacent its lower end and rollingly engages against the front wall of the inner mast 15 for guiding the outer mast 16 as it moves in either an upwards or downwards direction.
  • the inner mast 15 is also provided with a transverse guide roller (not shown) adjacent its top end and which is designed to rollingly contact the inner surface of the rear wall of the outer mast 16.
  • a pair of pulley lifting straps 29 which are operatively coupled between the upper end of the carriage 23, and the upper end of the fixed inner mast 15, each strap 29 passing over a freely rotatable roller 30 mounted at the upper end of the outer mast 16.
  • the upper end of the mast 16 is closed by means of a fixed end cap 31 which rotatably supports the rollers 30 internally of the mast 16.
  • the actuator rod when the actuator 20 is operated, the actuator rod, via an extension rod 32 coupled to the actuator rod, pushes against the end cap 31 on the mast 16 to thereby elevate the mast 16 with respect to the inner mast 15 and in turn simultaneously cause the carriage 23 to travel upwardly along the outer mast 16 by means of the lifting action provided by the two lifting straps 29 which are anchored to the top of the inner mast 15.
  • This movement also works in reverse as the actuator rod is retracted in a downwards direction.
  • the actuator has a stroke of approximately 625mm, and together with a travelling distance of 625mm of the carriage 23 upwardly along the outer mast, provides an overall lift for the arm 13 of 1250mm. It will be realised that the arm 13 is lifted through a vertical distance which corresponds to the additive motions of the carriage 23 and the outer mast 16.
  • the arrangement of the flexible lifting straps 29 provides a safety advantage should the lifter arm 13 encounter an obstacle during its lowering movement. If this should occur, although the outer mast will continue to go down (due to the downward motion of the actuator 20), the carriage 23 and in turn the arm 13 will remain stationary and remain so until the obstruction is removed.
  • the flexible straps 29 will simply collapse by forming a number of folds.
  • the lifter arm 13 is detachably connected to the carriage 23 by means of a quick release slide connection which allows the arm 13 to be quickly and readily detached from the carriage 23 and the fitment of an alternative patient support lifter arm.
  • the lifter arm 13 has a vertically extending mounting bracket plate 34 at its inner end, the bracket plate 34 being provided with a pair of rearwardly projecting lugs 35 which lockingly engage within keyhole shaped openings 36 formed in the front wall 37 of the carriage 23 adjacent the upper corners thereof.
  • the lower end of the bracket 34 is designed so that its two bottom corner portions can slidably locate in slot-like channels 38, formed at the two bottom corners of the front wall 37 of the carriage 23.
  • the lifter arm is preferably of lightweight material to allow it to be easily handled by an operator, e.g. a nurse.
  • a safety lock device (not shown) is provided on the carriage 23 for releasably locking the arm 13 in its engaged position with the carriage 23, to thereby ensure that the arm does not release itself inadvertently from the carriage when in use.
  • the locking device may simply be a spring-loaded latch mechanism.
  • the patient support device 14, in this embodiment, comprises a cradle assembly of known construction, and is suspended from the free end of the lifter arm 13 by means of a vertical suspension bolt 40 which allows the cradle to rotate about a vertical axis .
  • the cradle 14 is arranged to have a sling (not shown) attached thereto.
  • a handle assembly is attached to the outer mast 16 and can be raised and lowered therewith.
  • the handle assembly comprises a pair of vertical transversely spaced apart hand engaging handle bars 41, each of which is connected at its upper end to the top cap 31 of the outer mast 16 by a U-shaped bridging rod 42, whilst the lower ends of the handle bars 41 are detachably connected to respective opposite sides of the outer mast 16 by means of separate connector rods 43.
  • the top cap 31 on the outer mast 16 can be removably mounted to allow same to be removed for service and maintenance purposes.
  • the handle assembly is collapsed by separating the component parts 41, 42, 43.
  • the chassis or base frame 11 comprises a bridging frame 45, and a pair of forwardly projecting side rails or legs 46 which are pivotally mounted at their rear ends to the underside of the bridging frame 45 to allow each of the legs 46 to rotate about a vertical axis, and to permit the space between the legs 46 to be adjusted.
  • Each of the legs 46 is supported at its forward end by a front ground-engaging support castor 47, whilst its rear end is connected to a vertical pivot pin 49.
  • the rear end of the base frame is supported by a rear castor support wheel 48.
  • the width adjustment of the base frame 11 by virtue of the pivotally mounted legs 41, allows the legs to go either side of chairs, a bath or any other object to achieve a safe and practical position when the machine is being operated.
  • the bridging frame 45 comprises an inverted U-shaped bridging member 50 which is designed to allow the lifter 10 to be positioned over a patient when lying on the ground or floor without inconveniencing the patient whilst being positioned in the patient support cradle 14.
  • the central portion of the bridging member 50 is shaped to house the base of the actuator 20 which is mounted on a pivot for flexibility during use.
  • each of the legs 46 is provided with an electric solenoid locking device 52 designed to releasably lock the leg against pivotal movement in all operating positions thereof.
  • the underside of the bridge member 50 is provided with an actuator pivot support plate 54 centrally thereof, to support the base of the actuator 20 which, as stated above, is pivotally mounted to provide flexibility and easy removal for service and maintenance thereof.
  • the lifter arm 13 has been removed from the carriage 23 and replaced by an accessory attachment arm 55 designed to releasably suspend an invalid chair 56 therefrom.
  • the lifter 10 is constructed of carbon fibre, although it will be appreciated that it can be constructed from other suitable materials, e.g. aluminium, steel.
  • Carbon fibre however provides a wide range of advantages including strength, rigidity, lightness, good vibration dampening qualities, chemical and corrosive resistance and virtually unlimited life span.
  • the electrically operated actuator 20 and solenoids 52 are operated by means of a hand-held remote control unit (not shown) carried on an extendible cord, thereby enabling the operator to operate the machine from virtually any position.
  • a hand-held remote control unit (not shown) carried on an extendible cord, thereby enabling the operator to operate the machine from virtually any position.
  • the control unit also allows the control unit to be operated by the patient himself.
  • the lifter allows an operator to very quickly and easily detach the lifter arm and its associated patient support device, from the carriage which moves up and down along the outer mast of the mast assembly, and to in turn attach an alternative accessory attachment arm, it being appreciated that there are a number of different patient support devices which are available and which are required depending upon the patient manoeuvre to be performed by the lifter.
  • This feature allows the present lifter assembly to be used as a multi ⁇ purpose unit - rather than having to stack separate machines for handling different patient transfer requirements.

Landscapes

  • Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Invalid Beds And Related Equipment (AREA)

Abstract

Elévateur mobile pour patient comportant un châssis de base (11), un ensemble mât vertical (12) soutenu par ledit châssis (11) et faisant saillie vers le haut à partir dudit châssis (11), un bras (13) élévateur faisant saillie latéralement à partir de l'ensemble mât (12) et un dispositif (14) de support de patient suspendu à l'extrémité libre externe du bras (13) élévateur et destiné à soutenir et à man÷uvrer un patient. L'ensemble mât (12) comporte des mâts verticaux (15, 16) interne et externe à emboîtement télescopique, un dispositif d'actionnement (20) relié de manière fonctionnelle au mât externe (16) pour déplacer ledit mât externe (15, 16) vers le haut et le bas par rapport au mât interne (15) fixe, un chariot (23) mobile placé sur le mât externe (16) et guidé en vue de se déplacer verticalement et extérieurement sur la longueur dudit mât (16), et un dispositif de levage (29) relié au chariot et destiné à déplacer ledit chariot par rapport au mât externe (16), ledit bras (13) élévateur étant relié amovible au chariot (23) et étant conçu pour se déplacer avec le chariot (23) vers le haut ou vers le bas le long du mât externe (16).
PCT/AU1994/000017 1993-01-18 1994-01-12 Ameliorations apportees a un elevateur mobile pour patient WO1994015568A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU58296/94A AU5829694A (en) 1993-01-18 1994-01-12 Improvements in and to a mobile patient lifter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPL6832 1993-01-18
AUPL683293 1993-01-18

Publications (1)

Publication Number Publication Date
WO1994015568A1 true WO1994015568A1 (fr) 1994-07-21

Family

ID=3776657

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1994/000017 WO1994015568A1 (fr) 1993-01-18 1994-01-12 Ameliorations apportees a un elevateur mobile pour patient

Country Status (2)

Country Link
TW (1) TW243413B (fr)
WO (1) WO1994015568A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999011556A1 (fr) * 1997-09-01 1999-03-11 Pronomic Ab Chariot-elevateur
US7437782B1 (en) * 2006-01-06 2008-10-21 Joerns Healthcare Inc. Load sensing safety device for vertical lift
WO2011116032A2 (fr) * 2010-03-15 2011-09-22 Tekulve Daniel R Appareil et procédé pour soulever un fauteuil roulant

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2679890A (en) * 1951-09-24 1954-06-01 Herman A Zannoth Device for assisting invalids into and out of bathtubs
GB1282275A (en) * 1968-06-17 1972-07-19 Mecanaids Ltd Improvements in or relating to apparatus for handling disabled persons
EP0119976A2 (fr) * 1983-03-11 1984-09-26 Actuator A/S Appareil de levage et de transport pour patients et personnes handicapées
DE3602105A1 (de) * 1986-01-24 1987-07-30 Weiner Rudolf Krankenhebe- und transporteinrichtung
EP0267888A2 (fr) * 1986-11-10 1988-05-18 Unbescheiden GmbH Dispositif de levage pour patients
EP0424344A1 (fr) * 1989-10-17 1991-04-24 Arjo Hospital Equipment Ab Appareil élévateur, notamment pour soulever les malades

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2679890A (en) * 1951-09-24 1954-06-01 Herman A Zannoth Device for assisting invalids into and out of bathtubs
GB1282275A (en) * 1968-06-17 1972-07-19 Mecanaids Ltd Improvements in or relating to apparatus for handling disabled persons
EP0119976A2 (fr) * 1983-03-11 1984-09-26 Actuator A/S Appareil de levage et de transport pour patients et personnes handicapées
DE3602105A1 (de) * 1986-01-24 1987-07-30 Weiner Rudolf Krankenhebe- und transporteinrichtung
EP0267888A2 (fr) * 1986-11-10 1988-05-18 Unbescheiden GmbH Dispositif de levage pour patients
EP0424344A1 (fr) * 1989-10-17 1991-04-24 Arjo Hospital Equipment Ab Appareil élévateur, notamment pour soulever les malades

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999011556A1 (fr) * 1997-09-01 1999-03-11 Pronomic Ab Chariot-elevateur
US6435309B1 (en) 1997-09-01 2002-08-20 Pronomic Ab Lifting carriage
US7437782B1 (en) * 2006-01-06 2008-10-21 Joerns Healthcare Inc. Load sensing safety device for vertical lift
WO2011116032A2 (fr) * 2010-03-15 2011-09-22 Tekulve Daniel R Appareil et procédé pour soulever un fauteuil roulant
WO2011116032A3 (fr) * 2010-03-15 2011-12-08 Tekulve Daniel R Appareil et procédé pour soulever un fauteuil roulant

Also Published As

Publication number Publication date
TW243413B (fr) 1995-03-21

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