EP0267888A2 - Patient lifting device - Google Patents

Patient lifting device Download PDF

Info

Publication number
EP0267888A2
EP0267888A2 EP87850342A EP87850342A EP0267888A2 EP 0267888 A2 EP0267888 A2 EP 0267888A2 EP 87850342 A EP87850342 A EP 87850342A EP 87850342 A EP87850342 A EP 87850342A EP 0267888 A2 EP0267888 A2 EP 0267888A2
Authority
EP
European Patent Office
Prior art keywords
jack
patient
lifting device
column part
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.)
Granted
Application number
EP87850342A
Other languages
German (de)
French (fr)
Other versions
EP0267888B1 (en
EP0267888A3 (en
Inventor
Jan Ake Johansson
Jan Ingmar Jönsson
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.)
UNBESCHEIDEN GMBH
Original Assignee
Unbescheiden GmbH
Electrolux AB
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 Unbescheiden GmbH, Electrolux AB filed Critical Unbescheiden GmbH
Publication of EP0267888A2 publication Critical patent/EP0267888A2/en
Publication of EP0267888A3 publication Critical patent/EP0267888A3/en
Application granted granted Critical
Publication of EP0267888B1 publication Critical patent/EP0267888B1/en
Expired 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
    • 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
    • A61G7/1059—Seats

Definitions

  • the invention relates to a mobile patient lifting device comprising a lower part, an upper part which is raiseable and lowerable relative to the lower part, a chargeable battery, a jack which is driven by electricity from the battery and arranged to raise and lower the upper part, and a lifting platform for the patient.
  • Such a patient lifting device is known through e.g. the European patent application publication No.198946, where the lifting platform is stationarily connected to the upper part and thus moves as much as the jack, i.e. the lifting height is equal to the stroke of the jack.
  • the lifting platform When the known lifting device has been used to lift a patient from chair-height of the platform into and out of a bath tub and then shall be used to lift another patient sitting on the floor, the lifting platform must first be loosened manually from the upper part and be lowered relative to that part and then be fastened to the upper part, so that the lifting platform comes flush with the floor. Then the patient can be lifted to chair-height but not longer, since the stroke of the jack will not be sufficient.
  • the jack is driven by electricity.
  • the power source of the jack is constituted by a battery arranged on the patient lifting device. The battery is suitably chargeable.
  • the object of the invention is to improve the known patient lifting device so that it obtains a sufficient lifting height to carry out all said lifts between different levels without the lifting platform having to be adjusted manually relative to the upper part, simultaneously as the current consumption of the jack must be kept so low that the patient lifting device can be used during a longer period before the battery must be charged again.
  • the lifting platform is arranged on a carriage means which is guided for movement in vertical direction, that the carriage means is suspended in the one end of a chain or similar hauling means, which runs over a wheel journalled in the upper part and with its other end is anchored to the lower part, and that a so-called gas spring is arranged between the lower part and the upper part to unload the force which acts on the jack on raising and lowering of a patient.
  • the lifting height of the lifting platform becomes twice as large as the stroke of the jack, which is sufficient for the said object to be attained.
  • the changing implies, however, that the force on the jack from the lifting platform is doubled, which brings with it that the current consumption of the electric motor driving the jack becomes so large that the electric motor in practice cannot be driven by a chargeable battery located on the patient lifting device. Therefore, the gas spring, the force of which being substantially constant during the whole stroke of the gas spring as is characteristic for gas springs, is arranged to unload the force on the jack. It has proved that the jack can be unloaded so much by the gas spring, that the current consumption on practical use with the patient lifting device becomes so low, that the electric motor advantageously can be driven by the chargeable battery located on the patient lifting device.
  • the numeral 10 designates a lower part showing a base 12 and a lower column part 14, on which an upper column part 16 is displaceably journalled.
  • the upper column part 16 is raiseable and lowerable by means of a jack 18, which is driveable by an electric motor 20 driving a longitudinal screw in the jack 18.
  • the screw engages a nut fastened to a rod 22 of the jack, so that the rod 22 is displaced in its longitudinal direction, when the screw rotates.
  • a lifting platform 24 is fastened to a carriage 26, which is guided for movement in vertical direction in the upper column part 16.
  • the carriage 26 is suspended in the one end 28 of a chain 30, which runs over a chain wheel 32 rotatably journalled in the upper column part 16.
  • the other end 34 of the chain is anchored to the lower part.
  • the jack 18 is unloaded by a gas spring 36 which is arranged in parallel with the jack 18 between the upper column part 16 and the lower part 10.
  • the gas spring 36 is arranged to lift the upper column part with a force which is substantially equal to the weight of the parts of the device moving in vertical direction with the same speed as the rod 22 plus the double weight of the carriage 26 and the platform 24 plus 75 kiloponds, which is the weight of an average patient.
  • the jack 18 will be loaded by an up force of substantially 75 kiloponds, when the platform 24 is unloaded and by a down force of substantially 75 kiloponds, when the platform 24 is loaded by a patient with a weight of 75 kilogrammes.
  • the electric motor 20 is driven by a chargeable battery 38.
  • the base 12 is provided with wheels 40 so that the device is mobile along the floor.

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)
  • Rehabilitation Tools (AREA)

Abstract

A patient lifting device shows an upper column part (16) which is displaceable relative to a lower column part (14) by means of a jack (18) driven from a chargeable battery (38) via an electric motor (20). A lifting platform (24) is arranged on a carriage (26) which is suspended in the one end of a chain (30) running over a wheel (32) journalled in the upper column part (16) and with its other end (34) is anchored to the lower column part (14). By this the lifting height of the platform (24) becomes twice as large as the stroke of the jack (18). A gas spring (36) is arranged in parallel with the jack (18) to unload the force which acts on the jack (18) on raising and lowering of a patient.

Description

  • The invention relates to a mobile patient lifting device comprising a lower part, an upper part which is raiseable and lowerable relative to the lower part, a chargeable battery, a jack which is driven by electricity from the battery and arranged to raise and lower the upper part, and a lifting platform for the patient.
  • Such a patient lifting device is known through e.g. the European patent application publication No.198946, where the lifting platform is stationarily connected to the upper part and thus moves as much as the jack, i.e. the lifting height is equal to the stroke of the jack. When the known lifting device has been used to lift a patient from chair-height of the platform into and out of a bath tub and then shall be used to lift another patient sitting on the floor, the lifting platform must first be loosened manually from the upper part and be lowered relative to that part and then be fastened to the upper part, so that the lifting platform comes flush with the floor. Then the patient can be lifted to chair-height but not longer, since the stroke of the jack will not be sufficient. The jack is driven by electricity. In order that the patient lifting device shall be mobile, the power source of the jack is constituted by a battery arranged on the patient lifting device. The battery is suitably chargeable.
  • The object of the invention is to improve the known patient lifting device so that it obtains a sufficient lifting height to carry out all said lifts between different levels without the lifting platform having to be adjusted manually relative to the upper part, simultaneously as the current consumption of the jack must be kept so low that the patient lifting device can be used during a longer period before the battery must be charged again.
  • This object is reached by the patient lifting device according to the invention thereby that the lifting platform is arranged on a carriage means which is guided for movement in vertical direction, that the carriage means is suspended in the one end of a chain or similar hauling means, which runs over a wheel journalled in the upper part and with its other end is anchored to the lower part, and that a so-called gas spring is arranged between the lower part and the upper part to unload the force which acts on the jack on raising and lowering of a patient.
  • By this a changing is achieved so that the lifting height of the lifting platform becomes twice as large as the stroke of the jack, which is sufficient for the said object to be attained. The changing implies, however, that the force on the jack from the lifting platform is doubled, which brings with it that the current consumption of the electric motor driving the jack becomes so large that the electric motor in practice cannot be driven by a chargeable battery located on the patient lifting device. Therefore, the gas spring, the force of which being substantially constant during the whole stroke of the gas spring as is characteristic for gas springs, is arranged to unload the force on the jack. It has proved that the jack can be unloaded so much by the gas spring, that the current consumption on practical use with the patient lifting device becomes so low, that the electric motor advantageously can be driven by the chargeable battery located on the patient lifting device.
  • An embodiment of a patient lifting device according to the invention will now be described below in connection with the accompanying drawing, the figure of which showing a longitudinal sectional view of the device.
  • The numeral 10 designates a lower part showing a base 12 and a lower column part 14, on which an upper column part 16 is displaceably journalled. The upper column part 16 is raiseable and lowerable by means of a jack 18, which is driveable by an electric motor 20 driving a longitudinal screw in the jack 18. The screw engages a nut fastened to a rod 22 of the jack, so that the rod 22 is displaced in its longitudinal direction, when the screw rotates.
  • A lifting platform 24 is fastened to a carriage 26, which is guided for movement in vertical direction in the upper column part 16. The carriage 26 is suspended in the one end 28 of a chain 30, which runs over a chain wheel 32 rotatably journalled in the upper column part 16. The other end 34 of the chain is anchored to the lower part. By this arrangement the platform 24 will obtain a lifting height twice as large as the stroke of the jack 18.
  • The jack 18 is unloaded by a gas spring 36 which is arranged in parallel with the jack 18 between the upper column part 16 and the lower part 10. The gas spring 36 is arranged to lift the upper column part with a force which is substantially equal to the weight of the parts of the device moving in vertical direction with the same speed as the rod 22 plus the double weight of the carriage 26 and the platform 24 plus 75 kiloponds, which is the weight of an average patient. By this the jack 18 will be loaded by an up force of substantially 75 kiloponds, when the platform 24 is unloaded and by a down force of substantially 75 kiloponds, when the platform 24 is loaded by a patient with a weight of 75 kilogrammes.
  • The electric motor 20 is driven by a chargeable battery 38. The base 12 is provided with wheels 40 so that the device is mobile along the floor.

Claims (2)

1. Mobile patient lifting device comprising a lower part (10), an upper part (16) which is raiseable and lowerable relative to the lower part, a chargeable battery (38), a jack (18) which is driven by electricity from the battery and arranged to raise and lower the upper part (16), and a lifting platform (24) for the patient, characterized in that the lifting platform (24) is arranged on a carriage means (26) which is guided for movement in vertical direction, that the carriage means (26) is suspended in the one end (26) of a chain (30) or similar hauling means, which runs over a wheel (32) journalled in the upper part (16) and with its other end (34) is anchored to the lower part (10), and that a so-called gas spring (36) is arranged between the lower part (10) and the upper part (16) to unload the force which acts on the jack (18) on raising and lowering of a patient.
2. Patient lifting device according to claim 1, characterized in that the lower part (10) shows a lower column part (14) and that the upper part is constituted by an upper column part (16), which is displaceably journalled on the lower column part (14), the carriage means (26) being guided in the upper column part (16) for its movement in vertical direction.
EP19870850342 1986-11-10 1987-11-06 Patient lifting device Expired EP0267888B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8604808 1986-11-10
SE8604808A SE464446B (en) 1986-11-10 1986-11-10 A lifting device

Publications (3)

Publication Number Publication Date
EP0267888A2 true EP0267888A2 (en) 1988-05-18
EP0267888A3 EP0267888A3 (en) 1989-04-12
EP0267888B1 EP0267888B1 (en) 1992-01-22

Family

ID=20366240

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870850342 Expired EP0267888B1 (en) 1986-11-10 1987-11-06 Patient lifting device

Country Status (4)

Country Link
EP (1) EP0267888B1 (en)
JP (1) JPS63130064A (en)
DE (1) DE3776279D1 (en)
SE (1) SE464446B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0424344A1 (en) * 1989-10-17 1991-04-24 Arjo Hospital Equipment Ab Lifting appliance, especially for a patient lifting device
FR2682872A1 (en) * 1991-07-29 1993-04-30 Marchand Bernard Apparatus for handling a patient
WO1994015568A1 (en) * 1993-01-18 1994-07-21 U C Medical Products Pty Ltd Improvements in and to a mobile patient lifter
EP0610664A1 (en) * 1993-02-10 1994-08-17 Eisen- Und Drahtwerk Erlau Aktiengesellschaft Nursing lift and support device
FR2715061A1 (en) * 1994-01-17 1995-07-21 Gallus Mouyen Concept Sa Adjustable dentist chair
FR2788736A1 (en) * 1999-01-27 2000-07-28 Stabilus Gmbh HEIGHT ADJUSTABLE SEAT, PARTICULARLY FOR A MOTOR VEHICLE
EP0924835A3 (en) * 1997-12-15 2000-08-02 Barrier Free Lifts, Inc. Charging station and method
GB2391537A (en) * 2002-08-09 2004-02-11 Proto Magic Innovations Ltd Patient lifting device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1313044A (en) * 1962-02-01 1962-12-21 Martonair Ltd Elevator
US3394933A (en) * 1966-04-28 1968-07-30 Suburban Mfg Corp Inc Invalid lifting and supporting device
US4086672A (en) * 1975-08-07 1978-05-02 Lars Agne Nilsson Lifting device
FR2493695A1 (en) * 1980-11-13 1982-05-14 Lepinoy Dominique Reproducible positioning support for patient under radiating source - has removable support with body positioning devices adjusted on mobile frame in two orthogonal positions
EP0096208A2 (en) * 1982-06-16 1983-12-21 Kaspar Albert Weber Bath lift for the corporally disabled
EP0198946A2 (en) * 1985-04-26 1986-10-29 Arjo Hospital Equipment Ab Device for interrupting lowering movements of motor-driven hoisting gears at patient-lifting units

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1313044A (en) * 1962-02-01 1962-12-21 Martonair Ltd Elevator
US3394933A (en) * 1966-04-28 1968-07-30 Suburban Mfg Corp Inc Invalid lifting and supporting device
US4086672A (en) * 1975-08-07 1978-05-02 Lars Agne Nilsson Lifting device
FR2493695A1 (en) * 1980-11-13 1982-05-14 Lepinoy Dominique Reproducible positioning support for patient under radiating source - has removable support with body positioning devices adjusted on mobile frame in two orthogonal positions
EP0096208A2 (en) * 1982-06-16 1983-12-21 Kaspar Albert Weber Bath lift for the corporally disabled
EP0198946A2 (en) * 1985-04-26 1986-10-29 Arjo Hospital Equipment Ab Device for interrupting lowering movements of motor-driven hoisting gears at patient-lifting units

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0424344A1 (en) * 1989-10-17 1991-04-24 Arjo Hospital Equipment Ab Lifting appliance, especially for a patient lifting device
US5348273A (en) * 1989-10-17 1994-09-20 Arjo Hospital Equipment Ab Lifting appliance, especially for a patient lifting device
FR2682872A1 (en) * 1991-07-29 1993-04-30 Marchand Bernard Apparatus for handling a patient
WO1994015568A1 (en) * 1993-01-18 1994-07-21 U C Medical Products Pty Ltd Improvements in and to a mobile patient lifter
EP0610664A1 (en) * 1993-02-10 1994-08-17 Eisen- Und Drahtwerk Erlau Aktiengesellschaft Nursing lift and support device
FR2715061A1 (en) * 1994-01-17 1995-07-21 Gallus Mouyen Concept Sa Adjustable dentist chair
EP0924835A3 (en) * 1997-12-15 2000-08-02 Barrier Free Lifts, Inc. Charging station and method
FR2788736A1 (en) * 1999-01-27 2000-07-28 Stabilus Gmbh HEIGHT ADJUSTABLE SEAT, PARTICULARLY FOR A MOTOR VEHICLE
GB2346082A (en) * 1999-01-27 2000-08-02 Stabilus Gmbh Height-adjustable seat for a vehicle
GB2391537A (en) * 2002-08-09 2004-02-11 Proto Magic Innovations Ltd Patient lifting device
GB2391537B (en) * 2002-08-09 2004-07-14 Proto Magic Innovations Ltd Patient lifting device

Also Published As

Publication number Publication date
EP0267888B1 (en) 1992-01-22
DE3776279D1 (en) 1992-03-05
SE464446B (en) 1991-04-29
JPS63130064A (en) 1988-06-02
SE8604808D0 (en) 1986-11-10
SE8604808L (en) 1988-05-11
EP0267888A3 (en) 1989-04-12

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