EP0691118B1 - Supporting column for holding a patient supporting surface - Google Patents

Supporting column for holding a patient supporting surface Download PDF

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Publication number
EP0691118B1
EP0691118B1 EP95110360A EP95110360A EP0691118B1 EP 0691118 B1 EP0691118 B1 EP 0691118B1 EP 95110360 A EP95110360 A EP 95110360A EP 95110360 A EP95110360 A EP 95110360A EP 0691118 B1 EP0691118 B1 EP 0691118B1
Authority
EP
European Patent Office
Prior art keywords
column
lifting
head part
linear drives
supporting
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 - Lifetime
Application number
EP95110360A
Other languages
German (de)
French (fr)
Other versions
EP0691118A2 (en
EP0691118A3 (en
Inventor
Reinhard Pfeuffer
Klaus Bock
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.)
Maquet GmbH
Original Assignee
Maquet GmbH
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 Maquet GmbH filed Critical Maquet GmbH
Publication of EP0691118A2 publication Critical patent/EP0691118A2/en
Publication of EP0691118A3 publication Critical patent/EP0691118A3/en
Application granted granted Critical
Publication of EP0691118B1 publication Critical patent/EP0691118B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/02—Adjustable operating tables; Controls therefor
    • 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
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/02—Adjustable operating tables; Controls therefor
    • A61G13/04—Adjustable operating tables; Controls therefor tiltable around transverse or longitudinal axis
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2200/00—General construction of tables or desks
    • A47B2200/0035—Tables or desks with features relating to adjustability or folding
    • A47B2200/005—Leg adjustment
    • A47B2200/0056—Leg adjustment with a motor, e.g. an electric motor

Definitions

  • the invention relates to a support column for holding a Patient storage area according to the preamble of claim 1.
  • Such a support column is for example from DE-A-22 60 140 known.
  • the frame of a rectangular frame with two vertical side parts, a lower plate and an upper plate. This Frame is in along its two vertical side parts a rigid guide connected to the column base vertically adjustable led.
  • the lower plate carries two linear drives.
  • the top plate is with a rigid rod and the other universal joint connected to the headboard.
  • This support column takes up a lot of space. Because of the rigid frame, the height to which the headboard is and thus the patient support area is lowered as much as possible can become relatively large.
  • the invention has for its object a support column known type so that they take up little space, in particular has a small diameter and that Adjustment range of the headboard is larger, especially that Headboard and thus the patient bed area further lowered can be.
  • a very space-saving and material-saving version of the Lift frame is given according to the invention in that the Lifting frame a hollow center column receiving the guide element has that at its top end via a radial arm with the upper end of the lifting column and at its lower end is connected to a three-armed support, close to which free arm ends the linear drives are articulated.
  • the lifting column and / or the linear drives can in itself known way as electromechanical spindle drives or also be designed as hydraulic drives.
  • the operating table shown in Figure 1 includes one patient storage area generally designated 10 and one connected to a central section 12 of the patient support surface generally designated 14 support column with a column base 16.
  • the support column 14 comprises a foot portion 18, the either in the column base shown in Figure 1 or directly is installed in the floor of an operating room.
  • On the Foot part 18 is connected to this double telescopic Lifting column 20 with a base part 22 and fixed to the foot part two telescopic tubes 24 and 26.
  • the lifting column 20 is in itself known manner designed as a spindle drive, the spindle via a low-voltage electric motor arranged on the base part 22 28 is driven.
  • On the output shaft of the electric motor 28 is a pinion, not shown, that drives a sprocket on a chain, that on an inside the lifting column 20 rotatably mounted threaded spindle sits. This threaded spindle drives as it rotates with the tube 26 connected threaded sleeve, the tubes 24 and 26 on.
  • a radial Arm 30 With the upper end of the telescopic tube 26 is a radial Arm 30 connected, one down at its free end protruding guide column 32 carries.
  • the lower end of the pillar 32 is rigidly connected to a three-armed support 34.
  • a linear drive is located at each free end of the three arms of the carrier 34 36 arranged with its lower end the free end of the respective support arm via a biaxial Cardan joint 38 is connected.
  • Figure 3 shows the arms of the carrier 34 are designed so that the three linear drives 36 and the lifting column 20 - viewed in plan view - In the four corners of the rectangular plate-shaped Foot part are arranged.
  • Each linear drive comprises a in a manner known per se a telescopic column 40 receiving a spindle drive and one Low voltage electric motor 42 which in the same way as described for the lifting column 20, via a Chain drive drives the spindle within the telescopic column 40.
  • the upper end of the telescopic column 40 is in each case one two-axis universal joint 44 with a plate-shaped head part 46 of the support column 14 connected.
  • a rod-shaped guide element 50 is articulated, the non-rotating but vertically movable in the hollow guide tube 32 is slidably guided.
  • Adjustment device of the support column 14 is of three trim rings 52 surrounded, which overlap telescopically, so that they can move against each other and thus one complete coverage of the column interior despite the adjustability ensure the head part 46. This is about a bellows 54 is connected to the uppermost trim ring 52.
  • the head part 46 can be adjusted in height by the lifting column 20.
  • the inclination of the head part can be adjusted by means of the linear drives 36 46 in any direction and around any axis be determined.
  • the guide element 50 ensures that the head part 46 despite the movable mounting of the linear drives 36 is kept stable and secure against rotation.
  • the structure of the support column according to the invention is extreme compact and therefore has a small diameter. Nevertheless it is possible to collapse the column to a low height, d. H. the headboard and the patient support surface lower a small height without the linear drives hinder each other. This is important because the linear drives when tilting the head part 46 each from her Vertical position Tilt at least slightly.

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

Description

Die Erfindung betrifft eine Stützsäule zur Halterung einer Patientenlagerfläche gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a support column for holding a Patient storage area according to the preamble of claim 1.

Eine derartige Stützsäule ist beispielsweise aus der DE-A-22 60 140 bekannt. Bei der bekannten Lösung ist das Gestell von einem rechteckigen Rahmen mit zwei vertikalen Seitenteilen, einer unteren Platte und einer oberen Platte gebildet. Dieser Rahmen ist entlang seiner beiden vertikalen Seitenteile in einer mit dem Säulenfuß verbundenen starren Führung vertikal verstellbar geführt.Such a support column is for example from DE-A-22 60 140 known. In the known solution, the frame of a rectangular frame with two vertical side parts, a lower plate and an upper plate. This Frame is in along its two vertical side parts a rigid guide connected to the column base vertically adjustable led.

Die untere Platte trägt zwei Linearantriebe. Die obere Platte ist über eine starre Stange und das weitere Kardangelenk mit dem Kopfteil verbunden. Diese Stützsäule benötigt viel Raum. Wegen des starren Rahmens ist die Höhe, auf welche das Kopfteil und damit die Patientenlagerfläche maximal abgesenkt werden kann, relativ groß. The lower plate carries two linear drives. The top plate is with a rigid rod and the other universal joint connected to the headboard. This support column takes up a lot of space. Because of the rigid frame, the height to which the headboard is and thus the patient support area is lowered as much as possible can become relatively large.

Der Erfindung liegt die Aufgabe zugrunde, eine Stützsäule der bekannten Art so auszubilden, daß sie einen geringen Raumbedarf, insbesondere einen kleinen Durchmesser hat und daß der Verstellbereich des Kopfteiles größer wird, insbesondere das Kopfteil und damit die Patientenlagerfläche weiter abgesenkt werden kann.The invention has for its object a support column known type so that they take up little space, in particular has a small diameter and that Adjustment range of the headboard is larger, especially that Headboard and thus the patient bed area further lowered can be.

Diese Aufgabe wird durch die im kennzeichnenden Teil des Anspruchs 1 angegebenen Merkmale gelöst.This task is accomplished by the in the characterizing part of the claim 1 specified features solved.

Bei der erfindungsgemäßen Lösung entfällt ein starrer und damit viel Raum beanspruchender Rahmen. Die beschriebene Anordnung der Linearantriebe sorgt für einen geringen Raumbedarf der Säule, wobei dennoch eine Beweglichkeit der Linearantriebe um ihre jeweiligen Schwenkachsen auch im vollständig abgesenkten Zustand des Kopfteiles gewährleistet ist. Durch den Verzicht auf einen starren Rahmen kann der Verstellbereich der Linearantriebe wesentlich besser ausgenutzt und damit das Kopfteil weiter abgesenkt werden, als dies bei der bekannten Lösung der Fall war. Dennoch ist durch das Führungselement eine Sicherung gegen ein Verdrehen des Kopfteiles relativ zum Säulenfuß gewährleistet.In the solution according to the invention, a rigid and thus omitted frame taking up a lot of space. The arrangement described the linear drives take up little space the column, while still allowing the linear drives to move around their respective swivel axes even in the fully lowered position Condition of the headboard is guaranteed. By the The adjustment range can be dispensed with a rigid frame the linear drives are used much better and with that the Headboard can be lowered further than in the known Solution was the case. Nevertheless, through the guide element a safeguard against twisting of the head part relative to Column base guaranteed.

Eine sehr raumsparende und materialsparende Ausführung des Hubgestells wird erfindungsgemäß dadurch gegeben, daß das Hubgestell eine das Führungselement aufnehmende hohle Mittelsäule hat, die an ihrem oberen Ende über einen radialen Arm mit dem oberen Ende der Hubsäule und an ihrem unteren Ende mit einem dreiarmigen Träger verbunden ist, nahe dessen freien Armenden die Linearantriebe angelenkt sind.A very space-saving and material-saving version of the Lift frame is given according to the invention in that the Lifting frame a hollow center column receiving the guide element has that at its top end via a radial arm with the upper end of the lifting column and at its lower end is connected to a three-armed support, close to which free arm ends the linear drives are articulated.

Die Hubsäule und/oder die Linearantriebe können in an sich bekannter Weise als elektromechanische Spindelantriebe oder auch als hydraulische Antriebe ausgebildet sein.The lifting column and / or the linear drives can in itself known way as electromechanical spindle drives or also be designed as hydraulic drives.

Um einerseits die hygienischen Anforderungen zu gewährleisten und andererseits die Mechanik innerhalb der Stützsäule gegen Verschmutzung zu schützen, ist die Verstelleinrichtung von einem Teleskopgehäuse umgeben, das an seinem oberen Ende über einen Balg mit dem Kopfteil verbunden ist.On the one hand to ensure the hygienic requirements and on the other hand against the mechanics within the support column Protecting pollution is the adjustment device from surrounded by a telescopic housing that over at its upper end a bellows is connected to the head part.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der folgenden Beschreibung, welche in Verbindung mit den beigefügten Zeichnungen die Erfindung anhand eines Ausführungsbeispieles erläutert. Darin zeigen:

Figur 1
eine schematische perspektivische Darstellung eines erfindungsgemäßen Operationstisches,
Figur 2
eine perspektivische teilweise schematische Darstellung des Säuleninnenraumes und der Verstelleinrichtung, und
Figur 3
eine schematische Draufsicht auf das Fußteil der Säule.
Further features and advantages of the invention will become apparent from the following description, which in connection with the accompanying drawings explains the invention using an exemplary embodiment. In it show:
Figure 1
2 shows a schematic perspective illustration of an operating table according to the invention,
Figure 2
a partially schematic perspective view of the interior of the column and the adjusting device, and
Figure 3
a schematic plan view of the foot part of the column.

Der in der Figur 1 dargestellte Operationstisch umfaßt eine allgemein mit 10 bezeichnete Patientenlagerfläche und eine mit einem Mittelabschnitt 12 der Patientenlagerfläche verbundene allgemein mit 14 bezeichnete Stützsäule mit einem Säulenfuß 16.The operating table shown in Figure 1 includes one patient storage area generally designated 10 and one connected to a central section 12 of the patient support surface generally designated 14 support column with a column base 16.

Gemäß Figur 2 umfaßt die Stützsäule 14 ein Fußteil 18, das entweder in den in Figur 1 dargestellten Säulenfuß oder direkt im Boden eines Operationssaales eingebaut ist. Auf dem Fußteil 18 steht eine mit diesem verbundene doppelt teleskopische Hubsäule 20 mit einem fußteilfesten Basisteil 22 und zwei Teleskoprohren 24 und 26. Die Hubsäule 20 ist in an sich bekannter Weise als Spindeltrieb ausgebildet, wobei die Spindel über einen an dem Basisteil 22 angeordneten Niederspannungs-Elektromotor 28 angetrieben wird. Auf der Abtriebswelle des Elektromotors 28 sitzt ein nicht dargestelltes Ritzel, das über eine Kette ein Kettenrad antreibt, das auf einer innerhalb der Hubsäule 20 drehbar gelagerten Gewindespindel sitzt. Diese Gewindespindel treibt bei ihrer Drehung über eine mit dem Rohr 26 verbundene Gewindehülse die Rohre 24 und 26 an.According to Figure 2, the support column 14 comprises a foot portion 18, the either in the column base shown in Figure 1 or directly is installed in the floor of an operating room. On the Foot part 18 is connected to this double telescopic Lifting column 20 with a base part 22 and fixed to the foot part two telescopic tubes 24 and 26. The lifting column 20 is in itself known manner designed as a spindle drive, the spindle via a low-voltage electric motor arranged on the base part 22 28 is driven. On the output shaft of the electric motor 28 is a pinion, not shown, that drives a sprocket on a chain, that on an inside the lifting column 20 rotatably mounted threaded spindle sits. This threaded spindle drives as it rotates with the tube 26 connected threaded sleeve, the tubes 24 and 26 on.

Mit dem oberen Ende des Teleskoprohres 26 ist ein radialer Arm 30 verbunden, der an seinem freien Ende eine nach unten ragende Führungssäule 32 trägt. Das untere Ende der Führungssäule 32 ist mit einem dreiarmigen Träger 34 starr verbunden. An jedem freien Ende der drei Arme des Trägers 34 ist ein Linearantrieb 36 angeordnet, der mit seinem unteren Ende mit dem freien Ende des jeweiligen Trägerarmes über ein zweiachsiges Kardangelenk 38 verbunden ist. Wie die Figur 3 zeigt sind die Arme des Trägers 34 so ausgebildet, daß die drei Linearantriebe 36 und die Hubsäule 20 - in der Draufsicht betrachtet - in den vier Ecken des rechteckigen plattenförmigen Fußteils angeordnet sind.With the upper end of the telescopic tube 26 is a radial Arm 30 connected, one down at its free end protruding guide column 32 carries. The lower end of the pillar 32 is rigidly connected to a three-armed support 34. A linear drive is located at each free end of the three arms of the carrier 34 36 arranged with its lower end the free end of the respective support arm via a biaxial Cardan joint 38 is connected. As Figure 3 shows the arms of the carrier 34 are designed so that the three linear drives 36 and the lifting column 20 - viewed in plan view - In the four corners of the rectangular plate-shaped Foot part are arranged.

Jeder Linearantrieb umfaßt in an sich bekannter Weise eine einen Spindeltrieb aufnehmende Teleskopsäule 40 und einen Niederspannungs-Elektromotor 42, der in der gleichen Weise, wie dies für die Hubsäule 20 beschrieben wurde, über einen Kettentrieb die Spindel innerhalb der Teleskopsäule 40 antreibt.Each linear drive comprises a in a manner known per se a telescopic column 40 receiving a spindle drive and one Low voltage electric motor 42 which in the same way as described for the lifting column 20, via a Chain drive drives the spindle within the telescopic column 40.

Das obere Ende der Teleskopsäule 40 ist jeweils über ein zweiachsiges Kardangelenk 44 mit einem plattenförmigen Kopfteil 46 der Stützsäule 14 verbunden. An einer mittleren Stelle zwischen den Kardangelenken 44 ist über ein weiteres Kardangelenk 48 ein stangenförmiges Führungselement 50 angelenkt, das verdrehsicher aber vertikal verschiebbar in dem hohlen Führungsrohrs 32 verschiebbar geführt ist.The upper end of the telescopic column 40 is in each case one two-axis universal joint 44 with a plate-shaped head part 46 of the support column 14 connected. In a middle place is a further universal joint between the universal joints 44 48 a rod-shaped guide element 50 is articulated, the non-rotating but vertically movable in the hollow guide tube 32 is slidably guided.

Die von der Hubsäule und den drei Linearantrieben gebildete Verstelleinrichtung der Stützsäule 14 ist von drei Verkleidungsringen 52 umgeben, die sich teleskopisch überlappen, so daß sie sich gegeneinander verschieben können und damit eine vollständige Abdeckung des Säuleninnenraumes trotz der Verstellbarkeit des Kopfteiles 46 gewährleisten. Dieses ist über eine Balg 54 mit dem obersten Verkleidungsring 52 verbunden.The one formed by the lifting column and the three linear drives Adjustment device of the support column 14 is of three trim rings 52 surrounded, which overlap telescopically, so that they can move against each other and thus one complete coverage of the column interior despite the adjustability ensure the head part 46. This is about a bellows 54 is connected to the uppermost trim ring 52.

Wie man aus der vorstehenden Beschreibung erkennt, kann das Kopfteil 46 durch die Hubsäule 20 in der Höhe verstellt werden. Mittels der Linearantriebe 36 kann die Neigung des Kopfteils 46 in einer beliebigen Richtung und um beliebige Achsen bestimmt werden. Das Führungselement 50 gewährleistet dabei, daß das Kopfteil 46 trotz der beweglichen Lagerung der Linearantriebe 36 stabil und verdrehsicher gehalten ist.As can be seen from the above description, this can The head part 46 can be adjusted in height by the lifting column 20. The inclination of the head part can be adjusted by means of the linear drives 36 46 in any direction and around any axis be determined. The guide element 50 ensures that the head part 46 despite the movable mounting of the linear drives 36 is kept stable and secure against rotation.

Die erfindungsgemäße Stützsäule ist in ihrem Aufbau äußerst kompakt und hat dadurch einen geringen Durchmesser. Trotzdem ist es möglich, die Säule auf eine geringe Höhe zusammenzufahren, d. h. das Kopfteil und die Patientenlagerfläche auf eine geringe Höhe abzusenken, ohne daß sich die Linearantriebe gegenseitig behindern. Dies ist wichtig, da sich die Linearantriebe beim Neigen des Kopfteils 46 jeweils aus ihrer Vertikalstellung Zumindest geringfügig neigen.The structure of the support column according to the invention is extreme compact and therefore has a small diameter. Nevertheless it is possible to collapse the column to a low height, d. H. the headboard and the patient support surface lower a small height without the linear drives hinder each other. This is important because the linear drives when tilting the head part 46 each from her Vertical position Tilt at least slightly.

Claims (5)

  1. A supporting column for holding a patient-supporting surface (10) of an operating table, comprising a foot part (18) and a head part (46) which is adapted to be connected to the patient-supporting surface (10) and can be vertically adjusted and pivoted around horizontal space axes relatively to the foot part (18) by an adjusting device disposed inside the supporting column (14), the adjusting device comprising a lifting column (20) standing on the foot part (18) and having its top end connected to a lifting frame (30, 32, 34) having a number of linear drives (36) extending parallel to the lifting column (20), one end of each drive being articulated by a universal joint to the lifting frame (30, 32, 34) and the other end being articulated by a universal joint to the head part (46), the head part (46) being connected by at least one additional universal joint (48) to the lifting frame (30, 32, 34), characterised in that the lifting column (20), which is non-rotatable, and three linear drives (36), considered in plan view, are disposed approximately at the corners of a rectangle and in that the head part (46) is connected by the additional universal joint (48) approximately at the diagonal point of intersection of the rectangle to a guide element (50) which is vertically adjustably but non-rotatably guided on the lifting frame (30, 32, 34).
  2. A supporting column according to claim 1, characterised in that the lifting frame (30, 32, 34) has a hollow central column (32) receiving the guide element (50) and connected at its top end via a radial arm (30) to the top end of the lifting column (20) and connected at its bottom end to a three-armed carrier (34), the linear drives (36) being pivotably mounted near the free ends of the arms.
  3. A supporting column according to claim 1 or 2, characterised in that the lifting column (20) and/or the linear drives (36) are electromechanical spindle drives.
  4. A supporting column according to claim 1 or 2, characterised in that the lifting column (20) and/or the linear drives (36) are hydraulic drives.
  5. A supporting column according to any of claims 1 to 4, characterised in that the adjusting device is surrounded by a telescopic casing (52), the top end of which is connected via a bellows (54) to the head part (46).
EP95110360A 1994-07-04 1995-07-03 Supporting column for holding a patient supporting surface Expired - Lifetime EP0691118B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4423402 1994-07-04
DE4423402A DE4423402C2 (en) 1994-07-04 1994-07-04 Support column for holding a patient support surface

Publications (3)

Publication Number Publication Date
EP0691118A2 EP0691118A2 (en) 1996-01-10
EP0691118A3 EP0691118A3 (en) 1996-04-03
EP0691118B1 true EP0691118B1 (en) 1999-10-27

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EP95110360A Expired - Lifetime EP0691118B1 (en) 1994-07-04 1995-07-03 Supporting column for holding a patient supporting surface

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US (1) US5528782A (en)
EP (1) EP0691118B1 (en)
JP (1) JP3549032B2 (en)
DE (2) DE4423402C2 (en)

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EP0691118A2 (en) 1996-01-10
JPH08182711A (en) 1996-07-16
DE4423402C2 (en) 1999-12-30
EP0691118A3 (en) 1996-04-03
US5528782A (en) 1996-06-25
DE59507125D1 (en) 1999-12-02
DE4423402A1 (en) 1996-01-11
JP3549032B2 (en) 2004-08-04

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