WO2002034191A1 - Variable height folding undercarriage for a stretcher - Google Patents

Variable height folding undercarriage for a stretcher Download PDF

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Publication number
WO2002034191A1
WO2002034191A1 PCT/AU2001/001356 AU0101356W WO0234191A1 WO 2002034191 A1 WO2002034191 A1 WO 2002034191A1 AU 0101356 W AU0101356 W AU 0101356W WO 0234191 A1 WO0234191 A1 WO 0234191A1
Authority
WO
WIPO (PCT)
Prior art keywords
undercarriage
support platform
frame
frames
servomotor
Prior art date
Application number
PCT/AU2001/001356
Other languages
French (fr)
Inventor
Adrian Douglas
John Hilton
John Grant-Thompson
Original Assignee
Neil Mansell Transport 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 Neil Mansell Transport Pty Ltd filed Critical Neil Mansell Transport Pty Ltd
Priority to AU1027102A priority Critical patent/AU1027102A/en
Priority to AU2002210271A priority patent/AU2002210271B2/en
Publication of WO2002034191A1 publication Critical patent/WO2002034191A1/en

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
    • A61G1/00—Stretchers
    • A61G1/02—Stretchers with wheels
    • A61G1/0293—Stretchers with wheels stretcher supports with wheels, e.g. used for stretchers without 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
    • A61G1/00—Stretchers
    • A61G1/02—Stretchers with wheels
    • A61G1/0206—Stretchers with wheels characterised by the number of supporting wheels if stretcher is extended
    • A61G1/0212—2 pairs having wheels within a pair on the same position in longitudinal direction, e.g. on the same axis
    • 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
    • A61G1/00—Stretchers
    • A61G1/02—Stretchers with wheels
    • A61G1/0237—Stretchers with wheels having at least one swivelling wheel, e.g. castors
    • 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
    • A61G1/00—Stretchers
    • A61G1/02—Stretchers with wheels
    • A61G1/025—Stretchers with wheels having auxiliary wheels, e.g. wheels not touching the ground in extended position
    • A61G1/0262—Stretchers with wheels having auxiliary wheels, e.g. wheels not touching the ground in extended position having loading wheels situated in the front during loading
    • 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
    • A61G1/00—Stretchers
    • A61G1/04—Parts, details or accessories, e.g. head-, foot-, or like rests specially adapted for stretchers
    • A61G1/052—Struts, spars or legs
    • A61G1/056—Swivelling legs
    • A61G1/0562—Swivelling legs independently foldable, i.e. at least part of the leg folding movement is not simultaneous
    • 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
    • A61G7/002—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame
    • A61G7/012—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame raising or lowering of the whole mattress frame

Definitions

  • This invention relates to a variable height folding undercarriage which is particularly suitable for transporting a patient on a stretcher.
  • the invention will be described hereinafter as a stretcher transporting undercarriage however it is to be understood that the undercarriage has much wider application as a means for transporting a diverse variety of goods and materials besides people on stretchers.
  • Stretcher undercarriages have a number of practical disadvantages associated with the means by which the height of their patient carrying platform is raised and lowered, and also their maneuverability at different heights.
  • Various designs have been proposed to enable patients to be loaded at one level and transported or carried at another level, or to enable the entire stretcher undercarriage to be folded and loaded into an ambulance or other transporting means while the patent remains in place.
  • stretcher undercarriage designs typically involve manual exertion by the attendant in adjusting the undercarriage heights, and maneuvering the undercarriage at different heights, strain is placed upon the attendant which over a period of time can give rise to adverse medical conditions such as back strain.
  • the present invention provides an undercarriage comprising a support platform with two foldable frames thereunder, each of said frames having a pair of spaced wheels at one end thereof and being hinged at the other end and slidable on rails carried by the support platform, wherein the slidable ends of the frames are also journalled to respective worms lying in the plane of the framework which are powered by a servomotor, there being fixed linkages between the respective ends of the support platform and a region on the frames so that when the servomotor is activated to rotate a worm, the end of the frame journalled to the worm moves along the rails and the wheeled end of the frame moves either toward or away from the respective end of the support platform, thereby lowering or raising that end of the platform framework.
  • a wheeled undercarriage comprising at least one pair of castor wheels fitted to a frame which is foldable beneath the undercarriage, said castor wheels being located on a common member of the frame which is maintained in a horizontal position during folding of the frame by means of a pair of pivotal arm members of the frame, one of which arm members is cranked at its lower end and provides the main support.
  • Raising or lowering of the stretcher undercarriage is effected by hand operable controls on one end of the support platform framework, associated with the handles used to move the undercarriage in a forward or reverse direction.
  • the servomotors will normally be powered by a self-contained battery pack, such as a 12V battery, however powering from external dc . sources, such as the power source of an ambulance, is also possible.
  • a gearbox may be provided to ensure adequate torque for rotating the respective worms.
  • Each servomotor will preferably be independently operable so as to enable one or other of the ends of the stretcher undercarriage to be raised or lowered, for instance where it is necessary to maintain the patient level on an uneven surface or where it is necessary to elevate either the head or legs of the patient.
  • the controls will be synchronised so that the stretcher undercarriage can be raised or lowered at a uniform rate which maintains the support platform in a level condition.
  • the support platform will have the necessary attachments to enable a stretcher or other patient carrying means to be fitted thereto either permanently or, more usually, in a detachable manner.
  • provision for life-support equipment to be fixed to the undercarriage may be provided.
  • the support platform will be substantially rectangular and will incorporate a set of four fixed wheels located, respectively, at the leading corners and mid-region of the support platform. These wheels are designed to support the platform when the frames are in a fully folded position, such as when the undercarriage has been placed in an ambulance.
  • Figure 1 is a side elevational view of a fully extended stretcher undercarriage according to one aspect of the invention
  • Figure 2 is a side elevational view of the stretcher undercarriage shown in Figure 1, with one wheeled support frame fully folded, and
  • Figure 3 is a top/side perspective view of the stretcher undercarriage shown in Figure 1, with both wheeled support frames fully folded.
  • the undercarriage comprises a support platform 10 having two foldable wheeled frames 11, 12 fitted to its undersurface .
  • the support platform 10 has a rectangular configuration of box section aluminium or galvanized steel with bracing members 13, 14.
  • Fixed brackets 16, 17 are located on the trailing corners of the support platform for housing freely rotatable wheels 20, 21. Similar brackets 23, 24 are located at intermediate positions between the ends of the support platform also for housing freely rotatable wheels 25, 26.
  • the reduction gearbox connects to two worm drives 30, 31 extending between the bracing members 13, 14.
  • Wheeled frame 12 comprises a substantially rectangular array of aluminium or galvanized steel profiled supports and linkages which are pivotally interconnected to enable folding as described below.
  • the lower section of the frame includes a pair of castor wheels 32, 33 having castor housings supported by a common linkage 34.
  • the common linkage 34 is, in turn pivotally connected at each end to respective support members 35, 38 which are cranked at their lower ends.
  • cranking can be seen for support member 35 in Figure 1 where a cranked end is referenced by numeral 36
  • An arm also pivotally connects each end of the common linkage 34 to the undercarriage and further arms (see for instance arm 39 in Figure 1) extend from the end of the undercarriage to a mid region of the respective support members 35, 38.
  • the upper ends of the support members 34, 35 are pivotally connected to a cross-member 50 (see Figure 3) which is adapted to move in the plane of the platform framework in rail housings 51, 52.
  • Worm drive 30 is journalled to this cross-member .
  • Wheeled frame 11 also comprises a substantially rectangular array of aluminium or galvanized steel profiled supports and linkages which are pivotally connected in such a manner as to enable folding.
  • the frame includes a pair of freely rotatable wheels 40, 41 supported on the end of member 46.
  • Support struts 45, 46 extend for connection to the undercarriage platform and pivotal links 47, 48 extend between the end of the undercarriage platform and mid-regions of the support struts.
  • the upper end of the frame is pivotally connected to a cross member 49 which also slides within the rail housings 51, 52 but on the bottom side thereof. Worm drive 31 is journalled to this housing.
  • Control of the servomotor, and thus the folding of the frames, is effected by switches 53, 54 on one end of the platform framework.
  • the undercarriage can be folded from the fully extended arrangement depicted in Figure 1 to the fully collapsed arrangement depicted in Figure 3, or to any intermediate position, and vice-versa by operation of the switches 53, 54 at one end of the platform framework. In addition, operation of only one switch at a time enables one end of the undercarriage to be raised or lowered.

Landscapes

  • Health & Medical Sciences (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

A variable height folding undercarriage for transporting a patient on a stretcher, comprising a support platform (10) with two foldable frames (11, 12) thereunder, each of the frames (11, 12) having a pair of spaced ground wheels (33, 41) at one end thereof and being hinged at the other end and slidable on rails carried by the support platform (10), wherein the slidable ends of the frames (11, 12) are journalled to respective worms (30, 31) lying in the plane of the platform (10) which are powered by a servomotor (27), there being fixed linkages (39, 48) between the respective ends of the support platform (10) and a region on the frames (11, 12) so that when the servomotor (27) is activated to rotate a worm (30, 31), the end of the frame journalled to that worm moves along the rails and the wheeled end of the frame (11, 12) moves either toward or away from the respective end of the support platform (10), thereby lowering or raising that end of the support platform (10).

Description

"Variable Height Folding Undercarriage for a Stretcher"
BACKGROUND OF THE INVENTION
This invention relates to a variable height folding undercarriage which is particularly suitable for transporting a patient on a stretcher. The invention will be described hereinafter as a stretcher transporting undercarriage however it is to be understood that the undercarriage has much wider application as a means for transporting a diverse variety of goods and materials besides people on stretchers.
Stretcher undercarriages have a number of practical disadvantages associated with the means by which the height of their patient carrying platform is raised and lowered, and also their maneuverability at different heights. Various designs have been proposed to enable patients to be loaded at one level and transported or carried at another level, or to enable the entire stretcher undercarriage to be folded and loaded into an ambulance or other transporting means while the patent remains in place. However, since such stretcher undercarriage designs typically involve manual exertion by the attendant in adjusting the undercarriage heights, and maneuvering the undercarriage at different heights, strain is placed upon the attendant which over a period of time can give rise to adverse medical conditions such as back strain.
OBJECT OP THE INVENTION
It is therefore the main object of the present invention to provide a variable height, folding stretcher undercarriage which does not place as much strain upon the attendant as conventional designs typically do. SUMMARY OF THE INVENTION
Accordingly, in its broadest aspect, the present invention provides an undercarriage comprising a support platform with two foldable frames thereunder, each of said frames having a pair of spaced wheels at one end thereof and being hinged at the other end and slidable on rails carried by the support platform, wherein the slidable ends of the frames are also journalled to respective worms lying in the plane of the framework which are powered by a servomotor, there being fixed linkages between the respective ends of the support platform and a region on the frames so that when the servomotor is activated to rotate a worm, the end of the frame journalled to the worm moves along the rails and the wheeled end of the frame moves either toward or away from the respective end of the support platform, thereby lowering or raising that end of the platform framework.
According to a second aspect of the present invention there is provided a wheeled undercarriage comprising at least one pair of castor wheels fitted to a frame which is foldable beneath the undercarriage, said castor wheels being located on a common member of the frame which is maintained in a horizontal position during folding of the frame by means of a pair of pivotal arm members of the frame, one of which arm members is cranked at its lower end and provides the main support.
DETAILED DESCRIPTION OF THE INVENTION
By providing a stretcher undercarriage with a motor driven power source, the major problems associated with existing manual operable folding designs is effectively alleviated. The problem of maneuverability is addressed by re-designing the arrangement in which the castor wheels are supported for effective castoring. In a common stretcher undercarriage arrangement, there is typically a fixed pair of wheels on the ends of the forwardly located frame and a castored pair of wheels on the ends of the rearwardly or trailing located frame to facilitate steering. However, steering is only effectively possible with the wheeled frames fully extended since as the frames are retracted, the castoring angle between the frame and the castor wheel support changes, and the directional force through the frame to the castor wheel becomes increasingly greater to pivot the wheel. It therefore becomes more difficult for the attendant to pivot the wheel in the direction in which the undercarriage is to be moved. The above defined arrangement according to the present invention overcomes these problems .
Raising or lowering of the stretcher undercarriage is effected by hand operable controls on one end of the support platform framework, associated with the handles used to move the undercarriage in a forward or reverse direction. The servomotors will normally be powered by a self-contained battery pack, such as a 12V battery, however powering from external dc . sources, such as the power source of an ambulance, is also possible. In addition a gearbox may be provided to ensure adequate torque for rotating the respective worms.
Each servomotor will preferably be independently operable so as to enable one or other of the ends of the stretcher undercarriage to be raised or lowered, for instance where it is necessary to maintain the patient level on an uneven surface or where it is necessary to elevate either the head or legs of the patient. Generally, however, the controls will be synchronised so that the stretcher undercarriage can be raised or lowered at a uniform rate which maintains the support platform in a level condition.
The support platform will have the necessary attachments to enable a stretcher or other patient carrying means to be fitted thereto either permanently or, more usually, in a detachable manner. In addition, provision for life-support equipment to be fixed to the undercarriage may be provided.
Preferably, the support platform will be substantially rectangular and will incorporate a set of four fixed wheels located, respectively, at the leading corners and mid-region of the support platform. These wheels are designed to support the platform when the frames are in a fully folded position, such as when the undercarriage has been placed in an ambulance.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a side elevational view of a fully extended stretcher undercarriage according to one aspect of the invention,
Figure 2 is a side elevational view of the stretcher undercarriage shown in Figure 1, with one wheeled support frame fully folded, and
Figure 3 is a top/side perspective view of the stretcher undercarriage shown in Figure 1, with both wheeled support frames fully folded.
DESCRIPTION OF PREFERRED EMBODIMENT
A preferred embodiment of the invention will now be described with reference to the accompanying drawings, in all of which like reference numerals refer to like parts.
Referring to all of the drawings simultaneously, the undercarriage comprises a support platform 10 having two foldable wheeled frames 11, 12 fitted to its undersurface .
The support platform 10 has a rectangular configuration of box section aluminium or galvanized steel with bracing members 13, 14.
Fixed brackets 16, 17 are located on the trailing corners of the support platform for housing freely rotatable wheels 20, 21. Similar brackets 23, 24 are located at intermediate positions between the ends of the support platform also for housing freely rotatable wheels 25, 26.
A housing 27 for a battery, which drives an associated servomotor and reduction gearbox, both of which are also located within the housing, is fitted to bracing member 13. The reduction gearbox connects to two worm drives 30, 31 extending between the bracing members 13, 14.
Wheeled frame 12 comprises a substantially rectangular array of aluminium or galvanized steel profiled supports and linkages which are pivotally interconnected to enable folding as described below. The lower section of the frame includes a pair of castor wheels 32, 33 having castor housings supported by a common linkage 34. The common linkage 34 is, in turn pivotally connected at each end to respective support members 35, 38 which are cranked at their lower ends.
(This cranking can be seen for support member 35 in Figure 1 where a cranked end is referenced by numeral 36) . An arm (see for instance arm 37 in Figure 1) also pivotally connects each end of the common linkage 34 to the undercarriage and further arms (see for instance arm 39 in Figure 1) extend from the end of the undercarriage to a mid region of the respective support members 35, 38. The upper ends of the support members 34, 35 are pivotally connected to a cross-member 50 (see Figure 3) which is adapted to move in the plane of the platform framework in rail housings 51, 52. Worm drive 30 is journalled to this cross-member .
The geometry of all these supports and linkages is such that upon folding of the frames up under the support platform, the free-castoring of the wheels 32, 33 remains unhindered, as described below.
Wheeled frame 11 also comprises a substantially rectangular array of aluminium or galvanized steel profiled supports and linkages which are pivotally connected in such a manner as to enable folding. The frame includes a pair of freely rotatable wheels 40, 41 supported on the end of member 46. Support struts 45, 46 extend for connection to the undercarriage platform and pivotal links 47, 48 extend between the end of the undercarriage platform and mid-regions of the support struts. The upper end of the frame is pivotally connected to a cross member 49 which also slides within the rail housings 51, 52 but on the bottom side thereof. Worm drive 31 is journalled to this housing.
Control of the servomotor, and thus the folding of the frames, is effected by switches 53, 54 on one end of the platform framework.
The undercarriage can be folded from the fully extended arrangement depicted in Figure 1 to the fully collapsed arrangement depicted in Figure 3, or to any intermediate position, and vice-versa by operation of the switches 53, 54 at one end of the platform framework. In addition, operation of only one switch at a time enables one end of the undercarriage to be raised or lowered.
In operation, upon activating the switches on the end of the support platform when, for instance, in an extended state as shown in Figure 1, the servomotor and gearbox are activated and the drive screws 30, 31 rotate. This causes the cross members 50, 60 to move along the rail housings 51, 52 in opposite directions and to rotate the support members 35, 38 and 45, 46 in, respectively, clockwise and anti-clockwise directions as indicated by the heavy arrows, until the required reduction in height of the support platform is reached.

Claims

THE CLAIMS DEFINING THE INVENTION ARE AS FOLLOWS:
1. An undercarriage comprising a support platform with two foldable frames thereunder, each of said frames having a pair of spaced ground wheels at one end thereof and being hinged at the other end and slidable on rails carried by the support platform, wherein the slidable ends of the frames are journalled to respective worms lying in the plane of the framework which are powered by a servomotor, there being fixed linkages between the respective ends of the support platform and a region on the frames so that when the servomotor is activated to rotate a worm, the end of the frame journalled to that worm moves along the rails and the wheeled end of the frame moves either toward or away from the respective end of the support platform, thereby lowering or raising that end of the support platform.
2. An undercarriage as claimed in claim 1, wherein at least one of the pairs of spaced ground wheels comprises caster wheels and wherein the caster wheels are located on a respective common member of the frame which is maintained in a horizontal position during folding of the frame by means of a pair of pivotal arm members of the frame, one of which arm members is cranked at its lower end and provides a main support member of the frame .
3. An undercarriage as claimed in claim 1 or claim 2, wherein raising or lowering of the undercarriage is effected by hand operable control switches on one end of the support platform.
4. An undercarriage as claimed in claim 1 or claim 2, wherein the servomotor is powered by a self-contained battery pack.
5. An undercarriage as claimed in claim 1 or claim 2 , and including a gearbox between the servometer and the worms
6. An undercarriage as claimed in claim 1 or claim 2, wherein there is a separate servomotor associated with each worm and wherein each servomotor is independently operable .
7. An undercarriage as claimed in claim 1 or claim 2, wherein the support platform is substantially rectangular and wherein there is a set of four fixed wheels located at the leading corners and the mid-region of the support platform.
8. An undercarriage as claimed in claim 1 or claim 2, wherein the support platform comprises a substantially rectangular array of aluminium or galvanized steel profiled elements with traverse bracing elements.
9. An undercarriage as claimed in claim 1 or claim 2, wherein the foldable frames each comprise a pair of elongate members with freely rotatable wheels on one end, cross-braces between the elongate members, and pivotal links which extend between the end of the support platform and the mid regions of the elongate members.
10. An undercarriage substantially as herein described with reference to the accompanying drawings.
AMENDED CLAIMS
[received by the Internationa Bureau on the 21 February 2002 (21.02.02)] claim 1 replaced by new claim 1
1. A stretcher undercarriage comprising a support platform with two foldable frames thereunder, each of said frames having a pair of spaced ground wheels at one end thereof and being hinged at the other end and slidable on rails carried by the support platform, wherein the slidable ends of the frames are journalled to respective worms lying in the plane of the framework which are powered by a servomotor, there being fixed length linkages between the respective ends of the support platform and a region on the frames so that when the servomotor is activated to rotate a worm, the end of the frame journalled to that worm moves along the rails and the wheeled end of the frame moves either toward or away from the respective end of the support platform, thereby lowering or raising that end of the support platform.
2. An undercarriage as claimed in claim 1, wherein at least one of the pairs of spaced ground wheels comprises caster wheels and wherein the caster wheels are located on a respective common member of the frame which is maintained in a horizontal position during folding of the frame by means of a pair of pivotal arm members of the frame, one of which arm members is cranked at its lower end and provides a main support member of the fram .
3. An undercarriage as claimed in claim 1 or claim 2, wherein raising or lowering of the undercarriage is effected by hand operable control switches on one end of the support platform.
4- A undercarriage as claimed in claim 1 or claim 2, wherein the servomotor is powered by a self-contained battery pack.
5- A undercarriage as claimed in claim 1 or claim 2 , and including a gearbox between the servometer and the
PCT/AU2001/001356 2000-10-23 2001-10-23 Variable height folding undercarriage for a stretcher WO2002034191A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU1027102A AU1027102A (en) 2000-10-23 2001-10-23 Variable height folding undercarriage for a stretcher
AU2002210271A AU2002210271B2 (en) 2000-10-23 2001-10-23 Variable height folding undercarriage for a stretcher

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPR0949A AUPR094900A0 (en) 2000-10-23 2000-10-23 Variable height folding undercarriage
AUPR0949 2000-10-23

Publications (1)

Publication Number Publication Date
WO2002034191A1 true WO2002034191A1 (en) 2002-05-02

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EP1693038A1 (en) 2005-02-18 2006-08-23 Jaume Farre Tonijoan Articulated sanitary stretcher for multipositional decubitus (prone/supine) therapeutic treatments
GB2427131A (en) * 2003-03-11 2006-12-20 Chg Hospital Beds Inc Height adjustable bed with planetary gear arrangement maintaining vertical orientation of a caster stem
EP1738732A1 (en) * 2005-06-29 2007-01-03 Ferno (UK) Limited Stretcher apparatus
WO2009135803A1 (en) * 2008-05-08 2009-11-12 Stem S.R.L. A stretcher and a patient transport system
ITMI20082264A1 (en) * 2008-12-19 2010-06-20 I L C A S R L BED WITH LIFTING MECHANISM / LOWERING THE NETWORK.
EP2347745A1 (en) * 2008-11-07 2011-07-27 Matunaga Manufactory Co. Ltd. Six-wheeled stretcher
US8241200B2 (en) 2009-01-21 2012-08-14 Ferno-Washington, Inc. Incubator transporter interface assembly
US8714612B2 (en) 2008-10-18 2014-05-06 Ferno-Washington, Inc. Multi-purpose roll-in emergency cot
RU215261U1 (en) * 2022-11-12 2022-12-06 Общество с ограниченной ответственностью "Научно-производственное предприятие "МИКРОМОНТАЖ" Patient transport trolley

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CN107928890B (en) * 2017-12-05 2024-05-10 安徽理工大学 Portable multifunctional stretcher

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AU640895B3 (en) * 1992-11-16 1993-09-02 Yung-Feng Hung A multi-function and automatic sick bed
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EP0558108B1 (en) * 1992-01-30 1996-09-25 Schell Industries B.V. Universally adjustable bed
DE19915431A1 (en) * 1999-04-06 2000-10-12 Hans Ulrich Schwenk Nursing bed; rests on support elements and has lying surface in bed frame, which is lowered, raised or tilted using support elements

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Publication number Priority date Publication date Assignee Title
US5084922A (en) * 1988-05-19 1992-02-04 Societe Louit Sa Self-contained module for intensive care and resuscitation
NL8901747A (en) * 1989-07-07 1991-02-01 Ferdinand Willemsen Trolley with vertical supports for wheels - has stabilising strut hinge and roller movable along frame to allow support rod to be folded up
EP0558108B1 (en) * 1992-01-30 1996-09-25 Schell Industries B.V. Universally adjustable bed
AU640895B3 (en) * 1992-11-16 1993-09-02 Yung-Feng Hung A multi-function and automatic sick bed
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DE19915431A1 (en) * 1999-04-06 2000-10-12 Hans Ulrich Schwenk Nursing bed; rests on support elements and has lying surface in bed frame, which is lowered, raised or tilted using support elements

Cited By (13)

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