EP0000443B1 - Dispositif de soulevement en particulier pour les malades - Google Patents
Dispositif de soulevement en particulier pour les malades Download PDFInfo
- 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
Links
Images
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)
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 (fr) | 1979-01-24 |
EP0000443B1 true EP0000443B1 (fr) | 1981-11-18 |
Family
ID=25214157
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP78300132A Expired EP0000443B1 (fr) | 1977-07-08 | 1978-07-07 | Dispositif de soulevement en particulier pour les malades |
Country Status (6)
Country | Link |
---|---|
US (1) | US4144713A (fr) |
EP (1) | EP0000443B1 (fr) |
BE (1) | BE868848A (fr) |
DE (1) | DE2861330D1 (fr) |
ES (2) | ES471557A1 (fr) |
IT (1) | IT1105247B (fr) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4296509A (en) * | 1979-10-23 | 1981-10-27 | Simmons Dwane P | Portable invalid lift |
SE431159B (sv) * | 1980-05-05 | 1984-01-23 | Hans Arne Valentin Johansson | Lyftaggregat vid patientlyftanordningar |
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 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU37596A1 (fr) * | ||||
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 (fr) * | 1973-01-30 | 1976-01-30 | Vial Antoine Fr |
-
1977
- 1977-07-08 US US05/814,095 patent/US4144713A/en not_active Expired - Lifetime
-
1978
- 1978-07-06 IT IT50184/78A patent/IT1105247B/it active
- 1978-07-07 DE DE7878300132T patent/DE2861330D1/de not_active Expired
- 1978-07-07 EP EP78300132A patent/EP0000443B1/fr not_active Expired
- 1978-07-07 BE BE189164A patent/BE868848A/fr not_active IP Right Cessation
- 1978-07-07 ES ES471557A patent/ES471557A1/es not_active Expired
-
1979
- 1979-01-10 ES ES476720A patent/ES476720A1/es not_active Expired
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 (fr) | 1979-01-24 |
US4144713A (en) | 1979-03-20 |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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