EP1997468A1 - Abstandhalter für Seitensicherungen von Krankenbetten - Google Patents

Abstandhalter für Seitensicherungen von Krankenbetten Download PDF

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Publication number
EP1997468A1
EP1997468A1 EP07109307A EP07109307A EP1997468A1 EP 1997468 A1 EP1997468 A1 EP 1997468A1 EP 07109307 A EP07109307 A EP 07109307A EP 07109307 A EP07109307 A EP 07109307A EP 1997468 A1 EP1997468 A1 EP 1997468A1
Authority
EP
European Patent Office
Prior art keywords
distance piece
piece
ceiling
rail system
distance
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.)
Withdrawn
Application number
EP07109307A
Other languages
English (en)
French (fr)
Inventor
John Enerberg
Tommy Bekk
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.)
Molift AS
Original Assignee
Molift AS
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 Molift AS filed Critical Molift AS
Priority to EP07109307A priority Critical patent/EP1997468A1/de
Publication of EP1997468A1 publication Critical patent/EP1997468A1/de
Withdrawn legal-status Critical Current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
    • A61G7/104—Devices carried or supported by
    • A61G7/1042—Rail systems

Definitions

  • Figure 1a and 1b show a side view and cross sectional view, respectively, of a well known patient rail system 1, which is intended to be suspended from a ceiling.
  • This system operates by providing a suspended rail section 2, to which a transportation device (not shown in the Figures) can be attached.
  • a transportation device may be in the form of a lifting motor, which is connected to the rail and can run along the rail via its trolley (being more or less an integrated part of the lifting motor).
  • the lifting motor can elevate and lower a suspension via its lifting band.
  • a sling is fitted around a patient and is connected to the suspension via loops provided at its distal ends.
  • the transportation device in the form of a lifting motor will elevate and lower a patient. Movement along the rails may be performed either self propelled or manually.
  • the concept of lifting a patient is to transfer the patient from e. g. a chair to a bed or from a bed to a toilet etc.
  • a patient could readily be moved through numerous rooms and departments within the hospital, in particular by means of sling adapted for a person to sit in or by means of a stretcher.
  • Another possible use would be in nursing homes or private homes where a disabled individual has to be moved from point A to point B.
  • the gradient of the rail section 2 must not be greater than a 5mm drop over a 1m section of the rail 2. Obviously, if the gradient of the rail were too steep, in one direction the care giver would be required to push the patient and transportation device up a significant gradient, and furthermore a patient at the top of the slope runs the risk of gravity pulling the transportation device down the slope.
  • the bolt 3 interacts with a nut 4 which is itself held to the ceiling by means of a mounting plate 8. It is not necessary to use mounting plate 8, and indeed bolt 3 could interact with a nut 4 which is directly attached to the ceiling. Additionally, bolt 3 could interact with a hole provided in the ceiling, which had an appropriate gripping means contained therein. Such appropriate gripping means, would be of the form of a raw1 plug, or the like. These means are well known to people in the art, and therefore further discussion will be omitted.
  • One advantage of providing the nut 4 interacting with the ceiling via a mounting plate 8, is that the mounting plate 8 may be of a larger dimension than the nut 4, and therefore can be more securely held to the ceiling.
  • the mounting plate 8 could be provided with an approximately hemispherical protrusion, into which one end of an appropriately formed nut 4 can be held.
  • FIG 1b wherein the hemispherical hollow section of the mounting plate 8 is seen in cross section, as is an appropriately shaped hemispherical plug provided at one end of the nut 4.
  • This plug 9 is held in place by the mounting plate 8, and a hole 10 provided through the mounting plate 8 allows the plug 9 of nut 4, to pass through.
  • the nut 4 provides the appropriately internally threaded section 11 for interacting with the thread 12 on the bolt 3.
  • a further advantage of providing the mounting plate 8 and nut 4 with plug 9 as described above, is that the orientation of the bolt 3 with respect to the ceiling can be appropriately maintained. Clearly, in a system wherein the nut 4 directly interacts with the ceiling, with any slight misalignment the bolt 3 would not hang vertically downward, and the rail section 2 may also be misaligned.
  • the system described above will allow for the rail section 2 to be positioned at an appropriate distance from the ceiling, as so desired.
  • the nut 4 is positioned at appropriate places in the ceiling, preferably by use of mounting plate 8 and plug 9 as disclosed above, and the bolt 3 is passed through appropriate holes 5 on the rail section 2 in order to interact with the nut 4 by means of threaded section 11 and external thread 12.
  • the height of each section may be adjusted perfectly such that the gradient is not too severe.
  • simply engaging the thread 12 with internally threaded region 11 of the nut 4 will raise or lower the rails section 2 as desired. In such a way, the suspended rail system 1 can be built-up throughout the care environment, and function appropriately.
  • a distance piece 13 which interacts with both the rail section 2 and the ceiling.
  • Such a distance piece 13 is provided in order to reduce the translational forces acting on the bolt 3 and nut 4, by providing some form of stabilising means to reduce the transverse motion.
  • this is currently achieved by providing a tube which slides over the bolt 3 and is positioned between the ceiling, or appropriate mounting means (as detailed above: mounting plate 8) and the rails section 2.
  • Such a distance piece tube 13 has an appropriate diameter such that it stabilises the transverse motion of the rails section 2, and dramatically reduces it.
  • each distance piece 13 must have the exact length of the distance between the rail section 2 and the ceiling.
  • the ceiling is perfectly horizontal, and therefore the distance between the top of the rail section 2 and the ceiling will change.
  • each distance tubing 13 must be cut exactly to length for every single bolt 3 and nut 4 connection point. This is very time consuming, and furthermore any small error in the cutting of the distance tube 13 will lead to significant wastage, as the tube 13 is useless.
  • the distance piece of the present invention is provided such that its length will change as the rail section 2 is being attached to the ceiling by means of the bolt 3 and nut 4, or the like.
  • Such a distance piece is described in claim 1, wherein a distance piece is provided with a region which can have its length reduced by a force acting along the central axis of the piece.
  • the distance piece can be integrated with the hanging rail section 2 during fitting, and as the bolt 3 integrates with nut 4, the force of threading the bolt 3 and nut 4 acts on the distance piece, and thereby reduces its length.
  • the clear advantage of providing such a distance piece is that the distance piece need not be specifically cut to the appropriate length for integrating with the hanging rail section 2.
  • the distance between the ceiling and the top of the rail section 2 can be set at the appropriate height for the general system 1, and the length of the distance piece will be adjusted during this fitting. As such, time need not be wasted in precisely cutting a distance piece tube, and also there will be no significant wastage as none of the tubes would be cut to the wrong length.
  • the distance pieces of the current invention provide the same stabilising effects as the prior art distance tubes described above, in that they are positioned such that the transverse motion of the rails section 2 when in use, is reduced.
  • a further advantage of providing a distance piece with a deformation zone is seen with regards the bolt 3 and nut 4. Because the deformation zone of the distance piece is shortened by means of an appropriate compressive force along the axis of the distance piece, the material in the deformation zone will tend to react against this compressive force. As such, when the distance piece is integrated within a hanging rail system 1, after the distance between the ceiling and the rail section 2 has been appropriately chosen, the compressive force acting on the distance piece and deformation zone will remain constant.
  • the deformation zone is so structured, such that it then generates an extension force along the longitudinal axis of the distance piece.
  • the distance piece will generally be formed out of metal, and the deformation zone will generate an extension force along the axis of the distance piece in response to the compressive force in the same direction as a result of the elasticity of the metal. Whilst metal is discussed for the material of the tube, any material which may be compressed by some degree, but still maintain its integrity can be used. This will tend to act to push the rail section 2 away from the ceiling, and will further cause the same force between the bolt 3 and nut 4. The thread 12 on the bolt 3 will then push against the internal threaded region 11 of the nut 4, which will give a locking effect.
  • the distance piece 20 is provided with a compressible section or deformable region 21.
  • the compressible region comprises sections of gradually increasing and decreasing diameter to the external surface of the distance piece 20. This forms a substantially corrugated or undulating section to the distance piece 20, such that a longitudinal force acting along the central axis of the distance piece 20, will tend to lead to a reduction in the distance between the corrugations, which will lead to a general reduction in the length of the distance piece 20.
  • corrugations in the exterior surface of the distance piece 20 are shown to have an approximate saw-tooth profile, it is also possible for these corrugations to be of a principally sinusoidal nature. Indeed, any appropriate shape is considered as falling within the general scope of amendments according to the skilled person, with the only requirement being that the length of the compressible region 21 can be reduced by means of a longitudinal force. Any shape to the external surface of the distance piece 20 which allows for such a compression would be obvious to the skilled person, and is considered to fall within the scope of a current invention.
  • the angle between the two sides of the distance piece 20 making up the saw-tooth lies between approximately 35° and 75°.
  • the angle between these two sides may lay between approximately 50° and 70°, such that these two sides provide a tooth which has an approximately equilateral triangle profile.
  • the length of the compressible region 21 is chosen, such that the difference in length of the whole piece 20 between fully extended and fully compressed lies between approximately 5 mm and 35 mm. That is, the compressible region 21 is of such a length that when it is fully compressed such that the sides of each of the corrugations lie adjacent each other, the length of the distance piece 20 has been adjusted by between 5 mm and 35 mm.
  • the compressible region 21 is in Figure 2a and 2b shown to lay close to the top (in a region adjacent to the mounting plate 8), it is clear that the compressible region 21 can be located anywhere on the distance piece 20 (e. g. in a top region, middle region or bottom region). It may well be that to position the compressible region 21 close to the rail carrying system 1 may enhance stability of the entire system.
  • the distance piece 20 is seen as being some form of hollow tube which is positioned between the ceiling or mounting means for the rail section 2, and the rail section 2 itself. As is shown in Figure 2b , the distance piece 20 could form a tube of a dimension, that it is positionable over the bolt 3 and nut 4 as in the prior art system. In so doing, the diameter of the distance piece 20 would also be great enough such that the transverse motion of the suspended rail section 2 will be reduced.
  • the hollow tube surrounding the bolt 3 and nut 4, is not the only possible structure for the distance piece 20. It is also conceivable, that the distance piece 20 would be provided by an almost completely solid rod structure.
  • the compressible region 21, could either be provided by a section in this rod, again saw-tooth and sinusoidal variations to this section are considered appropriate, such that the length of the rod would be reduced by a longitudinal compression force.
  • the rod is provided as being primarily solid, with a hollow section at one end, and the compressible region as discussed above provided at this hollow section.
  • the sides of the rod in the hollow section would be provided with a corrugated structure, again such that a compressible force acting along the rod would lead to a forcing together of each of the corrugations and reduction in the length of the rod.
  • a rod were to be integrated with the rail carrying system 1, clearly it would not be intended to pass around the bolt 3, as shown in Figure 2b . Indeed, it would be possible to provide a series of the rods with compressible regions, at positions toward the outer side of the rails section 2. These would then extend between the outer side of the tops of the rails sections 2 and the ceiling.
  • the further advantage of providing the distance pieces 20 as disclosed above, either that of the hollow tube with deformable rod, is that upon compression deformation, the distance piece 20 will tend to provide an extension force in the opposite direction.
  • This extension force is a result of the compressible force acting upon the corrugated region, and the internal strength/resistance of the material making up the distance piece 20.
  • the distance piece 20 will tend to provide an extension force along the longitudinal axis of the distance piece 20, such that the rod or hollow tube will attempt to extend slightly.
  • Such an extension force will act upon the bolt 3 and nut 4 arrangement, such that the threads 11, 12 of each piece will be forced against each other.
  • the compressible region 21 is a region adapted to be mainly plastically or irreversibly deformed whilst certainly in a preferred embodiment the above described effect that a small fraction of an elastical force adapted to provide a locking engagement between bolt 3 and nut 4 is maintained.
  • Suitable materials for the distance piece are considered to be aluminium or aluminium alloy or steel.

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)
  • Leg Units, Guards, And Driving Tracks Of Cranes (AREA)
EP07109307A 2007-05-31 2007-05-31 Abstandhalter für Seitensicherungen von Krankenbetten Withdrawn EP1997468A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07109307A EP1997468A1 (de) 2007-05-31 2007-05-31 Abstandhalter für Seitensicherungen von Krankenbetten

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07109307A EP1997468A1 (de) 2007-05-31 2007-05-31 Abstandhalter für Seitensicherungen von Krankenbetten

Publications (1)

Publication Number Publication Date
EP1997468A1 true EP1997468A1 (de) 2008-12-03

Family

ID=38521784

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07109307A Withdrawn EP1997468A1 (de) 2007-05-31 2007-05-31 Abstandhalter für Seitensicherungen von Krankenbetten

Country Status (1)

Country Link
EP (1) EP1997468A1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07127783A (ja) * 1993-10-29 1995-05-16 Nifco Inc 蛇腹式管継手および蛇腹式管継手成形用金型
DE19633158A1 (de) * 1996-08-17 1998-02-19 Stenflex Rudolf Stender Gmbh Einrichtung zum Ausgleich der Bewegung zweier mit einander druckdicht zu verbindender Rohre und Verfahren zu ihrer Herstellung
EP1536172A1 (de) * 2002-09-06 2005-06-01 Ork Corporation Metallbalgrohr, verfahren zur herstellung desselben und flexibles rohr f r hochdruckfluid
DE102005028067A1 (de) * 2005-06-16 2006-12-21 Chou, Tsung-Yuan, Chutung Beleuchtungsvorrichtung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07127783A (ja) * 1993-10-29 1995-05-16 Nifco Inc 蛇腹式管継手および蛇腹式管継手成形用金型
DE19633158A1 (de) * 1996-08-17 1998-02-19 Stenflex Rudolf Stender Gmbh Einrichtung zum Ausgleich der Bewegung zweier mit einander druckdicht zu verbindender Rohre und Verfahren zu ihrer Herstellung
EP1536172A1 (de) * 2002-09-06 2005-06-01 Ork Corporation Metallbalgrohr, verfahren zur herstellung desselben und flexibles rohr f r hochdruckfluid
DE102005028067A1 (de) * 2005-06-16 2006-12-21 Chou, Tsung-Yuan, Chutung Beleuchtungsvorrichtung

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