EP0000443B1 - Hebegerät insbesondere für Kranke - Google Patents

Hebegerät insbesondere für Kranke Download PDF

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Publication number
EP0000443B1
EP0000443B1 EP78300132A EP78300132A EP0000443B1 EP 0000443 B1 EP0000443 B1 EP 0000443B1 EP 78300132 A EP78300132 A EP 78300132A EP 78300132 A EP78300132 A EP 78300132A EP 0000443 B1 EP0000443 B1 EP 0000443B1
Authority
EP
European Patent Office
Prior art keywords
fluid
reservoir
chamber
transfer chamber
handle
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.)
Expired
Application number
EP78300132A
Other languages
English (en)
French (fr)
Other versions
EP0000443A1 (de
Inventor
Raymond Clark
William T. Neill Jr.
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.)
Enerpac Tool Group Corp
Original Assignee
Applied Power Inc
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 Applied Power Inc filed Critical Applied Power Inc
Publication of EP0000443A1 publication Critical patent/EP0000443A1/de
Application granted granted Critical
Publication of EP0000443B1 publication Critical patent/EP0000443B1/de
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
    • A61G7/1013—Lifting of patients by
    • A61G7/1017—Pivoting arms, e.g. crane type 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
    • A61G7/1051—Flexible harnesses or slings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • B66C23/48—Manually-movable jib cranes for use in workshops
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25—Constructional features
    • B66F3/42—Constructional features with self-contained pumps, e.g. actuated by hand
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S254/00—Implements or apparatus for applying pushing or pulling force
    • Y10S254/03—Jack handles

Definitions

  • the present invention relates to hydraulic jacks comprising a ram, a reservoir, a pump with a manually-operable handle for drawing fluid from the reservoir on a suction stroke and delivering fluid to the ram on the delivery stroke, and a return valve openable by the handle to allow return of fluid from the ram to the reservoir.
  • a hydraulic jack is described in U.S. Patent Specification No. 3,806,091. In that specification the opening of the valve by the handle is effected by advancing the handle through a socket in which it is mounted to engage with an actuating button connected to the release valve.
  • the present invention is particularly concerned with the use of hydraulic jacks in patient-lifting devices.
  • the requirement for a movement of the handle to operate the release valve which is different in character from the normal pumping movement presents difficulties.
  • Patient lifting devices are in common use in hospitals, nursing homes, and in the homes of invalids, and they take on many different specific forms dictated by their specific function.
  • such devices of the type to which the subject invention is applicable comprise an upright member of one type or another, a boom pivotably mounted on the upright member, a fluid cylinder or hydraulic ram pivotably mounted between the upright member and the boom, a fluid reservoir, and a manually operated pump used to force fluid from the reservoir into the chamber of the fluid cylinder in order to raise the boom.
  • means must also be provided for transferring the fluid back to the reservoir from the chamber of the cylinder when it is desired to lower the boom.
  • FIGURE 1 shows a patient lifting device comprising an upright member 10, a boom 12 pivotably mounted on the upright member 10, a fluid cylinder or hydraulic ram 14 one end of which is connected to the upright member 10 and the other end of which is connected to the boom 12, and a manually operated pump 16 operatively associated with the fluid cylinder 14 such that operation of the pump 16 causes actuation of the cylinder.
  • the patient lifting device also comprises a reservoir 18 (shown in FIGURES 2, 4, and 5) for fluid to operate the ram 14.
  • a patient 20 is shown seated in a conventional sling chair 22 suspended from the outer end of the boom 12.
  • the ram 14 is pivotably mounted at at least one end (shown as the upper end in FIGURE 1), and actuation of the ram 14 raises the boom 12 and can be used to lift the patient 20.
  • the upright member 10 can be journalled in the base 24 for at least limited rotation, permitting the patient to be swung in an arc about the upright member 10 by means of the handle 26.
  • the pump 16 comprises a handle 28, means defining a transfer chamber 30, and a pumping piston 32 activated by the handle 28 and operatively associated with the reservoir 18 and the transfer chamber 30 such that operation of the pumping piston 32 in one direction opens a valve 34 located at the inlet of the transfer chamber 30 and draws fluid from the reservoir 18 into the transfer chamber 30 and operation of the pumping piston 32 in the other direction closes the valve 34 and forces fluid from the transfer chamber 30 into the chamber 36 of the fluid cylinder 14.
  • a valve 38 is located at the outlet to the transfer chamber 30, and the outlet is in communication via a conduit 40 with the chamber 36.
  • a loose pin 42 is located in the transfer chamber 30 between the valves 34 and 38 to prevent the valve 34 from moving above the opening 43 of the pumping piston 32 into the transfer chamber 30. Instead of the illustrated pin 42, a weak compression spring could be used for this purpose.
  • a second transfer chamber 44 is in fluid communication with the transfer chamber 30, the chamber 36, and the reservoir 18.
  • a compression spring 46 is located in the transfer chamber 44 so as to bear against the valve 38 and bias it towards its closed position.
  • a valve 48 is located at the outlet of the transfer chamber 44.
  • Means 50 are actuated by the handle 28 to open the valve 48 when the handle is in position to cause transfer of fluid from the chamber 36 to the reservoir 18.
  • the combination of the spring 46 and the position of the pumping piston 32 when the handle 28 is in contact with the means 50 ensures that the valve 38 is closed when the handle 28 is in position to cause transfer of fluid from the chamber 36 to the reservoir 18.
  • the transfer chamber 44 is preferably divided into two parts, an outer chamber 51 and an inner chamber 52, by means mounted within the transfer chamber 44. At least one small hole 54 allows the restricted flow of fluid into the inner chamber 52, and the valve 48 is located at the outlet of the inner chamber 52. A compression spring 56 is located in the inner chamber 52 so as to bear against the valve 48 and bias it towards its closed position.
  • the means 50 comprises a plunger 58 which is biased outwardly by a compression spring 60 and which is forced inwardly to open the valve 48 by contact with the handle 28 when it is brought beyond its usual pumping position.
  • a conduit 62 leads from the valve 48 to the reservoir 18, and it is sized at at least one point along its length to allow the restricted flow of fluid from the transfer chamber 44 to the reservoir 18 when the valve 48 is open.
  • the plunger 58 passes through at least a portion of the conduit 62, thereby further reducing the effective cross-sectional area of the conduit.
  • reservoir 18 has been shown as a separate chamber surrounding the fluid cylinder 14, it could equally well be placed elsewhere, or it could simply be the volume within the cylinder on the opposite side of the cylinder head from the chamber 36.
  • the combined weight of the boom and anyone being carried by the boom then causes the fluid to flow from the chamber 36, through the conduit 40, into the outer chamber 51, through the hole 54, into the inner chamber 52, through the conduit 62, and into the reservoir 18.
  • the fact the hole 54 and the conduit 62 are of restricted cross-sectional areas, however, ensures that the lowering operation is gradual, so that no harm will come to the patient even if the plunger 58 is actuated accidentally by too vigorous movement of the handle 28.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Nursing (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Reciprocating Pumps (AREA)

Claims (17)

1. Hebevorrichtung für Patienten, mit einem Ausleger (12), der schwenkbar auf einem aufrecht stehenden Ständer (10) gelagert ist und der mittels eines Hydraulikstempels (14) anhebbar ist, dem Hydraulikfluid von einem Reservoir (18) mittels einer durch einen Handgriff (28) von Hand betätigbaren Pumpe (16) zugeführt werden kann und von dem das Fluid durch Betätigung eines Rückflußventils zu dem Reservoir zurückgeführt werden kann, um den Ausleger abzusenken, dadurch gekennzeichnet, daß das Rückflußventil (48 bis 60) betätigbar ist durch Bewegen des Pumpenhandgriffs (28) in dessen Nicht-Arbeitsrichtung in eine Stellung (Fig. 5) über diejenige hinaus, die dem Ende des normalen Saughubes der Pumpe entspricht.
2. Hebevorrichtung nach Anspruch 1, bei der die Pumpe (16) mit dem Reservoir (18) und der Stempelkammer (36) jeweils durch Einwege-Ventile (34 und 38) kommuniziert, dadurch gekennzeichnet, daß das Rückflußventil (48 bis 60) einen Rückflußdurchgang (62) steuert, der separat von dem durch die genannten Einwege-Ventile (34 und 38) gesteuerten Fließweg ist.
3. Hebevorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Rückflußventil (48 bis 60) eine federbelastete Kugel (48) und einen Stößel (58) zum Abheben dieser Kugel von ihrem Sitz aufweist.
4. Hebevorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß der Stößel (58) sich durch einen verengten Durchgang (62) erstreckt und er so die Fluidfließmenge durch das Rückflußventil verringert.
5. Hebevorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß die Kugel (48) einen Auslaß von einem Ende einer Übertragungskammer (44) steuert, deren anderes Ende ein Einwege-Ventil (38) aufweist, um Fluid über einen mit der Übertragungskammer kommunizierenden Durchgang (40) zur Stempelkammer (36) einzulassen.
6. Hebevorrichtung nach Anspruch 5, gekennzeichnet durch eine innere Kammer (52) innerhalb der Übertragungskammer (44), welche innere Kammer an ihrem Auslaß die Kugel (48) aufweist und durch eine verengte Öffnung (54) mit der Übertragungskammer kommuniziert.
7. Hebevorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß die innere Kammer (52) eine die Kugel (48) gegen ihren Sitz belastende Feder (56) enthält.
8. Hydraulikbock mit einem Stempel (14), einem Reservoir (18), einer Pumpe (16) mit einem von Hand betätigbaren Handgriff (28), um in einem Saughub Fluid von dem Reservoir abzuziehen und in einem Arbeitshub Fluid dem Stempel zuzuführen, und mit einem durch den Handgriff (28) zu öffnenden Rückflußventil (48 bis 60), um einen Fluidrückfluß von dem Stempel zu dem Reservoir zu gestatten, dadurch gekennzeichnet, daß der Pumpenhandgriff (28) in seiner Nicht-Arbeits-richtung in eine Stellung (Fig. 5) über das Ende des normalen Saughubes der Pumpe hinaus bewegbar ist und er durch diese Bewegung das Rückflußventil öffnet.
9. Hydraulikbock nach Anspruch 8, gekennzeichnet durch einer Übertragungskammer (30) mit Rückschlagventilen (34 und 38) an ihrem Einlaß und Auslaß, durch die Fluid zu dem Stempel gepumpt wird, eine zweite Übertragungskammer (44), die zwischen dem Rückschlagventil (38) am Auslaß der ersten Übertragungskammer und dem am Auslaß der zweiten Übertragungskammer angeordneten Rückflußventil (48) begrenzt ist, und durch ein durch den Handgriff (28) beaufschlagbares Betätigungsglied (50) zum Offnen des Rückflußventils, um einen Fluidrückfluß zu dem Reservoir zu gestatten.
10. Hydraulikbock nach Anspruch 9, gekennzeichnet durch eine innere Kammer (52) innerhalb der zweiten Übertragungskammer, wobei das Rückflußventil am Auslaß der inneren Kammer angeordnet ist und zumindest eine kleine Öffnung (54) vorgesehen ist, die einen gedrosselten Fluß von der zweiten Übertragungskammer in die innere Kammer gestattet.
11. Hydraulikbock, gekennzeichnet durch (a) einen Fluidzylinder (36);
(b) ein Reservoir (18) für Fluid zur Betätigung dieses Fluidzylinders;
(c) eine von Hand betriebene Pumpe, die arbeitsmäßig so mit dem Fluidzylinder und dem Reservoir verbunden ist, daß die Betätigung der Pumpe eine Ausdehnung des Zylinders bewirkt, welche Pumpe aufweist:
(i) einen Handgriff (28);
(ii) eine erste Einrichtung, die eine erste Übertragungskammer bestimmt, welche erste Einrichtung ein erstes Ventil am Einlaß zu der ersten Übertragungskammer und ein zweites Ventil am Auslaß der ersten Ubertragungskammer einschließt;
(iii) einen durch den Handgriff betätigten und arbeitsmäßig mit dem Reservoir und der ersten Übertragungskammer so verbundenen Pumpenkolben (32), daß die Betätigung des Pumpenkolbens in die eine Richtung das erste Ventil (34) öff-net und Fluid von dem Reservoir in die erste Übertragungskammer (30) abzieht und die Betätigung des Pumpenkolbens in die andere Richtung dieses erste Ventil schließt und Fluid von der ersten Übertragungskammer in die Kammer des Fluidzylinders drückt; und
(d) durch eine von dem Handgriff betätigte zweite Einrichtung zum Überführen von Fluid von der Kammer des Fluidzylinders zu dem Reservoir durch eine mehr als normale Bewegung des Handgriffs (28) in seine Nicht-Arbeitsrichtung, welche zweite Einrichtung aufweist:
(i) eine dritte Einrichtung, die eine zweite Übertragungskammer (44) bestimmt, welche dritte Einrichtung das zweite Ventil (38), das zwischen der ersten und der zweiten Übertragungskammer angeordnet ist, und ein Rückflußventil (48) am Auslaß der zweiten Übertragungskammer einschließt;
(ii) eine vierte Einrichtung (46) zum Schliessen des zweiten Ventils, wenn der Handgriff in einer Stellung ist, um ein Überführen von Fluid von der Kammer des Fluidzylinders zu dem Reservoir zu bewirken; und
(iii) eine von dem Handgriff beaufschlagte Betätigungseinrichtung (50) zum Öffnen des Rückflußventils, wenn der Handgriff über seine normale Endstellung beim Saughub hinausbewegt ist, um dadurch ein Überführen von Fluid von der Kammer des Fluidzylinders zu dem Reservoir ohne weiteres Ausdehen des Fluidzylinders zu bewirken.
12. Hydraulikbock nach Anspruch 11, dadurch gekennzeichnet, daß die dritte Einrichtung eine eine innere Kammer (52) innerhalb der zweiten Übertragungskammer bestimmende sechste Einrichtung aufweist, welche sechste Einrichtung zumindest eine kleine Öffnung (54) enthält, die einen gedrosselten Fluidfluß in die innere Kammer erlaubt, und daß das Rückflußventil am Auslaß der inneren Kammer angeordnet ist.
13. Hydraulikbock nach Anspruch 10 oder 12, gekennzeichnet durch eine Einrichtung (56) in der inneren Kammer, die das Rückflußventil in Richtung Schließstellung belastet.
14. Hydraulikbock nach Anspruch 9, 10, 11, 12 oder 13, dadurch gekennzeichnet, daß die Betätigungseinrichtung einen nach außen belasteten Stößel (50) aufweist, der zum Öffnen des Rückflußventils nach innen getrieben wird, wenn der Handgriff in einer Stellung ist, um ein Überführen von Fluid zu dem Reservoir zu bewirken.
15. Hydraulikbock nach Anspruch 14, gekennzeichnet durch eine von dem Rückflußventil zu dem Reservoir führende Leitung (62), die an zumindest einer Stelle längs ihrer Erstreckung so bemessen ist, daß sie, wenn das Rückflußventil offen ist, einen gedrosselten Fluidfluß von der zweiten Übertragungskammer zu dem Reservoir erlaubt.
16. Hydraulikbock nach Anspruch 15, dadurch gekennzeichnet, daß der Stößel (50) durch zumindest einen Abschnitt der Leitung (62) hindurchgeht.
17. Hydraulikbock nach einem der Ansprüche 9, 10 und 13 bis 16, dadurch gekennzeichnet, daß die zweite Übertragungskammer eine Belastungsfeder (46) für das Rückschlagventil (38) am Auslaß der ersten Übertragungskammer (30) enthält.
EP78300132A 1977-07-08 1978-07-07 Hebegerät insbesondere für Kranke Expired EP0000443B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US814095 1977-07-08
US05/814,095 US4144713A (en) 1977-07-08 1977-07-08 Patient lifting device

Publications (2)

Publication Number Publication Date
EP0000443A1 EP0000443A1 (de) 1979-01-24
EP0000443B1 true EP0000443B1 (de) 1981-11-18

Family

ID=25214157

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78300132A Expired EP0000443B1 (de) 1977-07-08 1978-07-07 Hebegerät insbesondere für Kranke

Country Status (6)

Country Link
US (1) US4144713A (de)
EP (1) EP0000443B1 (de)
BE (1) BE868848A (de)
DE (1) DE2861330D1 (de)
ES (2) ES471557A1 (de)
IT (1) IT1105247B (de)

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US4554691A (en) * 1983-11-02 1985-11-26 Daugherty Robert O Patient lifting apparatus
GB8424527D0 (en) * 1984-09-28 1984-11-07 James Ind Ltd Lifting slings
JPH05507870A (ja) * 1990-06-29 1993-11-11 ジェイムズ―ウォレス，ウォレス ホイスト付き安定化ベッド
JP2547230Y2 (ja) * 1991-05-15 1997-09-10 日東工器株式会社 油圧作動機
US5379468A (en) * 1993-04-26 1995-01-10 Cassidy; Joseph P. Patient-handling apparatus
US5461965A (en) * 1993-06-24 1995-10-31 Reliance Medical Products, Inc. Cushioned hydraulic lift mechanism with slot in cylinder wall
US5388289A (en) * 1993-09-16 1995-02-14 Casperson; Donald L. Combination wheelchair and lift
US5810104A (en) * 1995-12-01 1998-09-22 Patient Easy Care Products, Inc. Drive wheel and tiller for a patient transporter
US5697110A (en) * 1995-12-01 1997-12-16 Patient Easy Care Products, Inc. Control panel for a patient transporter
US5708993A (en) * 1995-12-01 1998-01-20 Patient Easy Care Products, Inc. Patient transporter and method of using it
US5875501A (en) * 1997-07-16 1999-03-02 Jury; Dan E. Patient lift
US5887431A (en) * 1997-11-06 1999-03-30 Wu; Kai-Ping Oil cylinder for a stand carriage
US6289534B1 (en) 1998-07-31 2001-09-18 Hill-Rom Services, Inc. Patient lift
US6513824B2 (en) 2000-06-28 2003-02-04 Steven C. DuBose Combination lift mechanism and wheelchair
GB0016530D0 (en) * 2000-07-06 2000-08-23 Arjo Ltd Invalid positioning device
US6405531B1 (en) * 2001-01-25 2002-06-18 Hong Wen-Cheng Jack
ES2281213B1 (es) * 2003-07-28 2008-10-01 Manuel Bretones Luque Dispositivo elevador de personas impedidas.
US6964070B2 (en) * 2003-11-12 2005-11-15 Gary Lee Hawk Patient lifting apparatus
MX2007011166A (es) * 2005-03-14 2008-04-16 Ergo Asyst Technology Llc Sistema de transferencia de pacientes, con bastidores y transportes elevadores asociados.
AU2009238448A1 (en) * 2008-04-04 2009-10-29 Huntleigh Technology Limited Multi-functional patient transfer device
US8523145B2 (en) * 2009-04-02 2013-09-03 Actuant Corporation Jack assembly with integrated pressure relief assembly
US20110225728A1 (en) * 2010-03-19 2011-09-22 Lyn Thornhill Tym-lyn portable lift system
AU2016333143B2 (en) * 2015-10-02 2019-11-28 Easy and Light Mobility Pty Ltd Mobility aid
US11786430B2 (en) 2019-02-11 2023-10-17 Liko Research & Development Ab Patient lift and sling having wireless communication
US11919758B2 (en) * 2021-05-25 2024-03-05 Gaither Tool Company, Inc. Double acting rapid lift auxiliary valve assembly for a hydraulic jack

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LU37596A1 (de) *
US2361197A (en) * 1944-05-10 1944-10-24 Edward D Hallinan Bed lifter
US2708882A (en) * 1951-11-29 1955-05-24 Vulcan Mfg Co Inc Hand pump for a hydraulic jack
US3222029A (en) * 1964-01-20 1965-12-07 Ted Hoyer & Company Inc Invalid lift
US3260051A (en) * 1964-03-17 1966-07-12 Takara Company Chair raising and lowering mechanism
US3615157A (en) * 1968-03-07 1971-10-26 Multiprens C A Hydraulic jack
US3806091A (en) * 1971-08-12 1974-04-23 D Wride Hydraulic jacks
FR2215547B3 (de) * 1973-01-30 1976-01-30 Vial Antoine Fr

Also Published As

Publication number Publication date
IT1105247B (it) 1985-10-28
DE2861330D1 (en) 1982-01-21
BE868848A (fr) 1978-11-03
ES476720A1 (es) 1979-10-16
ES471557A1 (es) 1979-10-01
IT7850184A0 (it) 1978-07-06
EP0000443A1 (de) 1979-01-24
US4144713A (en) 1979-03-20

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