EP1530958B1 - Foot for an operating table - Google Patents

Foot for an operating table Download PDF

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Publication number
EP1530958B1
EP1530958B1 EP04022814A EP04022814A EP1530958B1 EP 1530958 B1 EP1530958 B1 EP 1530958B1 EP 04022814 A EP04022814 A EP 04022814A EP 04022814 A EP04022814 A EP 04022814A EP 1530958 B1 EP1530958 B1 EP 1530958B1
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EP
European Patent Office
Prior art keywords
roller
support
support frame
casing
support column
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
EP04022814A
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German (de)
French (fr)
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EP1530958A3 (en
EP1530958A2 (en
Inventor
Reinhard Pfeuffer
Georg Marx
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Maquet GmbH
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Maquet GmbH
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Publication of EP1530958A3 publication Critical patent/EP1530958A3/en
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    • 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
    • A61G13/10—Parts, details or accessories
    • 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
    • A61G7/05—Parts, details or accessories of beds
    • A61G7/0528—Steering or braking devices for castor wheels

Definitions

  • the invention relates to a foot part for a comprehensive a support column and a patient support surface operating table with a specific for receiving the support column, based on castors support frame.
  • the operating table is immobile. He is stationary connected to the ground.
  • the operating table can go crazy, but only with the help of a suitable transport device, which can lift and move the operating table.
  • the bearing surface transfer means that the patient bearing surface which is detachably connected to the support column can be transferred to a bearing surface transport carriage by means of operating means or can be transferred from this to the support column.
  • the storage space transport car has two vertical supports, which rest on a chassis and their mutual distance is such that they are in the transfer of patient support surface of the trolley on the support column or vice versa on both sides of the patient support surface directly to the support column. This requires that the storage space transport car can be approached without obstruction by the foot of the operating table to this, that the support column of the operating table is exactly between the support bars of the storage space transport vehicle.
  • a foot according to the preamble of claim 1 is disclosed in document US 2794694.
  • the invention has for its object to provide a footboard for an operating table, on the one hand allows the mobility of the operating table with high stability of the same and at the same time a bearing surface transfer using a storage area transport vehicle.
  • the support frame and the roller housing can be made sufficiently flat, so that the trolley and the trolley can be moved up, which previously used in conjunction with the above-mentioned immobile or semi-mobile operating tables were. At the same time, however, you have an operating table that is mobile and can be moved without additional aids in the operating room.
  • the steering roller is fixed to a roller carrier which is adjustable in the roller housing and rotatably mounted about a vertical axis, wherein in the roller housing an adjusting device for height adjustment of the roller carrier is provided.
  • the adjusting device may expediently be designed in the form of a pressure-medium-actuated piston-cylinder arrangement.
  • the roller housing is cylindrical with a vertical cylinder axis, wherein the roller carrier comprises a piston-like plate slidable in the roller housing, are fixed to the bearing blocks for the steering roller and which is rotatably supported by a roller bearing in the roller housing about the cylinder axis.
  • the adjusting device expediently comprises a coaxial with the cylinder axis in the roller housing firmly inserted Druckschverteilerring having a plurality of pressure medium cylinders which are connectable to a pressure medium source and in each of which a parallel to the cylinder axis displaceable, is arranged for acting on the roller carrier piston ,
  • the support frame has a bridge-like central portion for receiving the support column and two housing-like end portions, at the free corners of the roller housing are attached.
  • the end sections can be used for example for receiving the pressure medium source or other supply devices.
  • the pressure medium source may comprise a hydraulic pump in a conventional manner, which can be actuated via a foot pedal.
  • the width of the support frame is suitably approximately equal to the width of the support column, at least not greater than this, so that the approach of the trolley is not hindered to the support column.
  • the invention further extends to an operating table having a foot portion as described above.
  • a significant advantage of the solution according to the invention is that the total height of the castor wheel assembly is only slightly larger than the roller diameter itself. This makes it possible to optimally use the advantages of large rollers with regard to the driving characteristics of the surface pressure in the contact zone roller / floor and the like for a given height.
  • FIG. 1 shows a generally designated 10 support column of a surgical table, which rests on a generally designated 12 foot.
  • the support column 10 has a column head 14, on which a patient support surface, not shown, can be placed.
  • a patient support surface not shown
  • the foot part 12 comprises a support frame 18 having a bridge-like central portion 20 and two end portions 22 which are formed in the form of flat housing.
  • the bridge-like central portion 20 corresponds in its area to the base of the support column 10, as can be seen from a comparison of Figures 1 and 2 readily.
  • the box-like end portions 22 are each closed by a cover plate 24 upwards.
  • the support frame 18 rests on four castor assemblies 26 which are secured to the four outer free corners of the rectangular support frame 18.
  • the caster assemblies 26 are all identical, so that only one of them will be described below.
  • Each caster assembly 26 has a cylindrical roller housing 28 which is secured to the support frame 18 via a flange 30. At the lower end of the open cylindrical roller housing 28 there is a stop ring 32.
  • This stop ring 32 serves as a limitation for a movement of a circular disk-shaped roller plate 34, on the top two bearing blocks 36 are arranged, which serve to support two rollers 38 by means of an axis 40.
  • the distance of the bearing bores 42 in the bearing blocks 36 and the diameter of the rollers 38 is dimensioned so that the latter project through an opening 44 in the roller plate 34 down over the roller plate 34 and project beyond the lower edge 46 of the roller housing 28 downwards, when the roller plate 34 rests on the stop ring 32.
  • a hydraulic ring 48 is used, which is bolted to the housing wall by means not shown screws, which pass through holes 50 in the housing wall and engage in threaded holes 52 of the hydraulic ring.
  • the hydraulic ring contains at uniform intervals distributed over its circumference dashed lines indicated hydraulic cylinder 54 for receiving piston 56.
  • the hydraulic cylinder 54 are connected via a line, not shown, within the hydraulic ring 48 and a terminal 58 to a hydraulic source, in the left in Fig.1 End portion 22 of the support frame 18 is arranged.
  • the hydraulic source includes a hydraulic pump that can be actuated via a foot pedal 60.
  • the ball 56 allows the free rotation of the roller plate 34 about the vertical cylinder axis of the roller housing 28.
  • the ball bearing 62 comprises a cage ring 64 with holes 66 for receiving the balls, not shown, in a ring track 68 on the top of the roller plate 34 run.
  • the cage ring 64 is covered by a ball ring 70, against which the piston 56.
  • the roller housing 28 is covered by a cover 72.
  • the operating table is usually lowered so that the support frame 18 rests flat with the roller housings 28 on the floor. This results in a high stability of the operating table.
  • the foot part 12 has a very small height, so that the spars (or their attachments) of a conventional bearing surface transport carriage can slide over the roller housing. This makes it possible to approach the support column from two sides with the storage area transport car.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Nursing (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

Foot part (12) for an operating table with a support column (10) and a patient support surface comprises an at least approximately rectangular, plate-shaped support frame that rests on rollers and receives the support column. A roller housing (28) is rigidly connected to each corner of the support frame. The roller housing is approximately the same height as the support frame and contains a roller arranged so that it can be adjusted between an extended position, in which it is supported on the floor and holds the support frame with the roller housing above the floor, and a retracted position, in which the support frame and/or the roller housing rest on the floor. An independent claim is also included for an operating table comprising a support column, a removable patient support surface, and the above foot part.

Description

Die Erfindung betrifft ein Fußteil für einen eine Stützsäule und eine Patientenlagerfläche umfassenden Operationstisch mit einem zur Aufnahme der Stützsäule bestimmten, auf Lenkrollen beruhenden Trägerrahmen.The invention relates to a foot part for a comprehensive a support column and a patient support surface operating table with a specific for receiving the support column, based on castors support frame.

Bei Operationstischsystemen haben sich folgende Arten der Befestigung der Stützsäule als Standard herausgebildet:

  1. 1. die Befestigung der Stützsäule an einer Bodeneinbauplatte,
  2. 2. die Befestigung der Stützsäule an einer Bodenaufbauplatte und
  3. 3. die Befestigung der Stützsäule an einem semi-mobilen Fuß in Form einer Bodenaufstandsplatte.
In operating table systems, the following types of attachment of the support column have become standard:
  1. 1. the attachment of the support column to a floor mounting plate,
  2. 2. the attachment of the support column to a floor mounting plate and
  3. 3. the attachment of the support column to a semi-mobile foot in the form of a ground contact plate.

In den beiden ersten Fällen ist der Operationstisch immobil. Er ist ortsfest mit dem Boden verbunden. Im dritten Fall kann der Operationstisch zwar verrückt werden, jedoch nur mit Hilfe einer geeigneten Transportvorrichtung, welche den Operationstisch anheben und verschieben kann.In the first two cases, the operating table is immobile. He is stationary connected to the ground. In the third case, the operating table can go crazy, but only with the help of a suitable transport device, which can lift and move the operating table.

Alle drei Konfigurationen lassen sich aber in der Regel ohne Einschränkung in Systemen mit Lagerflächentransfer einsetzen. Der Lagerflächentransfer bedeutet, daß die lösbar mit der Stützsäule verbundene Patientenlagerfläche mit operationstischeigenen Mitteln auf einen Lagerflächen-Transportwagen übertragen bzw. von diesem auf die Stützsäule übernommen werden kann. Hierzu hat der Lagerflächentransportwagen zwei vertikale Stützen, die auf einem Fahrgestell ruhen und deren gegenseitiger Abstand so bemessen ist, daß sie bei der Übertragung der Patientenlagerfläche von dem Transportwagen auf die Stützsäule oder umgekehrt zu beiden Seiten der Patientenlagerfläche sich unmittelbar an der Stützsäule befinden. Dies setzt voraus, daß der Lagerflächentransportwagen ohne Behinderung durch das Fußteil des Operationstisches so an diesen herangefahren werden kann, daß die Stützsäule des Operationstisches genau zwischen den Stützholmen des Lagerflächentransportwagens steht.All three configurations can, however, generally be used without restriction in systems with bearing surface transfer. The bearing surface transfer means that the patient bearing surface which is detachably connected to the support column can be transferred to a bearing surface transport carriage by means of operating means or can be transferred from this to the support column. For this purpose, the storage space transport car has two vertical supports, which rest on a chassis and their mutual distance is such that they are in the transfer of patient support surface of the trolley on the support column or vice versa on both sides of the patient support surface directly to the support column. This requires that the storage space transport car can be approached without obstruction by the foot of the operating table to this, that the support column of the operating table is exactly between the support bars of the storage space transport vehicle.

Während also das Heranfahren des Lagerflächentransportwagens an die Stützsäule bei den oben genannten Konfigurationen keine Probleme bereitet, da die Bodenaufbauplatte oder die Bodenaufstandsplatte sehr flach ist, treten bei mobilen Operationstischen, deren Fußteil auf Rollen gelagert ist, Probleme auf. So sind T-förmige Fußteile oder H-förmige Fußteile bekannt. Bei den T-förmigen Konstruktionen kann der Lagerflächentransportwagen von dem schmalen Ende des T-Fußes an die Stützsäule herangefahren werden. Allerdings hat diese Fußteilkonstruktion den Nachteil, daß der T-Fuß an seinem schmalen Ende nur eine Rolle oder zwei axial dicht beieinander liegende Rollen hat, so daß die Abstützpunkte des Operationstisches auf dem Boden geometrisch ungünstig liegen und dadurch die Standsicherheit beeinträchtigt wird, insbesondere in Fällen, in denen die Patientenlagerfläche gegenüber der Stützsäule verstellt werden kann. Bei den bisher bekannten H-förmigen Konstruktionen, die eine höhere Standsicherheit aufweisen, kann der Lagerflächentransportwagen nicht an die Stützsäule herangefahren werden.Thus, while the approach of the storage area trolley to the support column in the above configurations poses no problems because the floorboard or floor support plate is very flat, problems arise in mobile operating tables whose foot is mounted on rollers. Thus, T-shaped foot parts or H-shaped foot parts are known. In the T-shaped constructions, the storage area transport carriage can be moved from the narrow end of the T-foot to the support column. However, this Fußteilkonstruktion has the disadvantage that the T-foot at its narrow end only one role or two axially close spaced rollers, so that the support points of the operating table are geometrically unfavorable on the ground and thus the stability is impaired, especially in cases . in which the patient support surface can be adjusted relative to the support column. In the hitherto known H-shaped constructions, which have a higher stability, the storage space transport car can not be moved up to the support column.

Ein Fußteil nach dem Oberbegriff des Anspruchs 1 ist in Dokument US 2794694 offenbart.A foot according to the preamble of claim 1 is disclosed in document US 2794694.

Der Erfindung liegt die Aufgabe zugrunde, ein Fußteil für einen Operationstisch anzugeben, das einerseits die Mobilität des Operationstisches bei hoher Standsicherheit desselben und gleichzeitig einen Lagerflächentransfer unter Verwendung eines Lagerflächentransportwagens ermöglicht.The invention has for its object to provide a footboard for an operating table, on the one hand allows the mobility of the operating table with high stability of the same and at the same time a bearing surface transfer using a storage area transport vehicle.

Diese Aufgabe wird gelöst durch die Merkmale des kennzeichnenden Teils des Anspruchs 1.This object is achieved by the features of the characterizing part of claim 1.

Da die Rollen im eingefahrenen Zustand vollständig in dem Rollengehäuse verschwinden, können der Trägerrahmen und die Rollengehäuse hinreichend flach gemacht werden, so daß an die Stützsäule auch die Transportwagen herangefahren werden können, die bisher in Verbindung mit den eingangs genannten immobilen oder semi-mobilen Operationstischen verwendet wurden. Gleichzeitig hat man aber einen Operationstisch, der mobil ist und ohne weitere Hilfsmittel im Operationssaal verfahren werden kann.Since the rollers completely disappear in the retracted state in the roller housing, the support frame and the roller housing can be made sufficiently flat, so that the trolley and the trolley can be moved up, which previously used in conjunction with the above-mentioned immobile or semi-mobile operating tables were. At the same time, however, you have an operating table that is mobile and can be moved without additional aids in the operating room.

Die Lenkrolle ist an einem Rollenträger befestigt, der in dem Rollengehäuse verstellbar und um eine vertikale Achse drehbar gelagert ist, wobei in dem Rollengehäuse eine Stellvorrichtung zur Höhenverstellung des Rollenträgers vorgesehen ist. Die Stellvorrichtung kann dabei zweckmäßigerweise in Form einer druckmittelbetätigten Kolbenzylinderanordnung ausgebildet sein.The steering roller is fixed to a roller carrier which is adjustable in the roller housing and rotatably mounted about a vertical axis, wherein in the roller housing an adjusting device for height adjustment of the roller carrier is provided. The adjusting device may expediently be designed in the form of a pressure-medium-actuated piston-cylinder arrangement.

Das Rollengehäuse ist zylindrisch mit einer vertikalen Zylinderachse, wobei der Rollenträger eine kolbenartig in dem Rollengehäuse verschiebbare Platte umfaßt, an der Lagerböcke für die Lenkrolle befestigt sind und die mittels eines Wälzkörperlagers in dem Rollengehäuse um die Zylinderachse drehbar gelagert ist. Dies ermöglicht eine flache, geschlossene und damit auch hohen hygienischen Ansprüchen genügende Bauweise der Rollenanordnung.The roller housing is cylindrical with a vertical cylinder axis, wherein the roller carrier comprises a piston-like plate slidable in the roller housing, are fixed to the bearing blocks for the steering roller and which is rotatably supported by a roller bearing in the roller housing about the cylinder axis. This allows a flat, closed and thus also high hygienic requirements sufficient construction of the roller assembly.

Bei einer Ausführungsform umfaßt die Stellvorrichtung zweckmäßigerweise einen koaxial zur Zylinderachse in dem Rollengehäuse fest eingesetzten Druckmittelverteilerring, der eine Mehrzahl von Druckmittelzylindern hat, die an eine Druckmittelquelle anschließbar sind und in denen jeweils ein parallel zur Zylinderachse verschiebbarer, zum Einwirken auf den Rollenträger bestimmter Kolben angeordnet ist.In one embodiment, the adjusting device expediently comprises a coaxial with the cylinder axis in the roller housing firmly inserted Druckmittelverteilerring having a plurality of pressure medium cylinders which are connectable to a pressure medium source and in each of which a parallel to the cylinder axis displaceable, is arranged for acting on the roller carrier piston ,

Vorzugsweise hat der Trägerrahmen einen brückenartigen Mittelabschnitt zur Aufnahme der Stützsäule und zwei gehäuseartige Endabschnitte, an deren freien Ecken die Rollengehäuse befestigt sind. Auf diese Weise erhält man eine sehr flache Bauform des Trägerrahmens. Die Endabschnitte können beispielsweise zur Aufnahme der Druckmittelquelle oder anderer Versorgungseinrichtungen genutzt werden. Die Druckmittelquelle kann in an sich bekannter Weise eine Hydraulikpumpe umfassen, die über ein Fußpedal betätigt werden kann.Preferably, the support frame has a bridge-like central portion for receiving the support column and two housing-like end portions, at the free corners of the roller housing are attached. In this way you get a very flat design of the support frame. The end sections can be used for example for receiving the pressure medium source or other supply devices. The pressure medium source may comprise a hydraulic pump in a conventional manner, which can be actuated via a foot pedal.

Die Breite des Trägerrahmens ist zweckmäßigerweise annähernd gleich der Breite der Stützsäule, zumindest nicht größer als diese, so daß das Heranfahren des Transportwagens an die Stützsäule nicht behindert wird.The width of the support frame is suitably approximately equal to the width of the support column, at least not greater than this, so that the approach of the trolley is not hindered to the support column.

Die Erfindung erstreckt sich ferner auf einen Operationstisch mit einem vorstehend beschriebenen Fußteil.The invention further extends to an operating table having a foot portion as described above.

Ein wesentlicher Vorteil der erfindungsgemäßen Lösung besteht darin, daß die Gesamthöhe der Lenkrollenanordnung nur unwesentlich größer als der Rollendurchmesser selbst ist. Damit lassen sich bei gegebener Höhe die Vorzüge großer Rollen bezüglich der Fahreigenschaften der Flächenpressung in der Kontaktzone Rolle/Boden und dergleichen optimal nutzen.A significant advantage of the solution according to the invention is that the total height of the castor wheel assembly is only slightly larger than the roller diameter itself. This makes it possible to optimally use the advantages of large rollers with regard to the driving characteristics of the surface pressure in the contact zone roller / floor and the like for a given height.

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

Fig.1
eine schematische perspektivische Gesamtansicht eines erfindungsgemäßen Fußteiles mit einer darauf angeordneten Stützsäule eines Operationstisches,
Fig.2
eine perspektivische Ansicht des Trägerrahmens des Fußteiles und
Fig.3
eine Explosionsdarstellung einer Lenkrollenanordnung.
Further features and advantages of the invention will become apparent from the further dependent claims and the following description, which explains the invention with reference to an embodiment in conjunction with the accompanying drawings. Show it:
Fig.1
a schematic overall perspective view of a foot part according to the invention with a support column of an operating table thereon,
Fig.2
a perspective view of the support frame of the foot part and
Figure 3
an exploded view of a castor wheel assembly.

In der Fig.1 erkennt man eine allgemein mit 10 bezeichnete Stützsäule eines Operationstisches, die auf einem allgemein mit 12 bezeichneten Fußteil ruht.1 shows a generally designated 10 support column of a surgical table, which rests on a generally designated 12 foot.

Die Stützsäule 10 hat einen Säulenkopf 14, auf den eine nicht dargestellte Patientenlagerfläche aufgelegt werden kann. Zur Verbindung der Patientenlagerfläche mit dem Säulenkopf 14 hat dieser zwei säulenseitige Kopplungsteile 16, in die lagerflächenseitige Kopplungsteile eingreifen, wie dies an sich bekannt ist.The support column 10 has a column head 14, on which a patient support surface, not shown, can be placed. To connect the patient support surface with the column head 14 of these two column-side coupling parts 16, engage in the bearing surface side coupling parts, as is well known.

Das Fußteil 12 umfaßt einen Trägerrahmen 18 mit einem brückenartigen Mittelabschnitt 20 und zwei Endabschnitten 22, die in Form flacher Gehäuse ausgebildet sind. Der brückenartige Mittelabschnitt 20 entspricht in seiner Fläche der Grundfläche der Stützsäule 10, wie dies aus einem Vergleich der Fig.1 und 2 ohne weiteres zu sehen ist. Die gehäuseartigen Endabschnitte 22 sind jeweils durch eine Deckplatte 24 nach oben hin abgeschlossen.The foot part 12 comprises a support frame 18 having a bridge-like central portion 20 and two end portions 22 which are formed in the form of flat housing. The bridge-like central portion 20 corresponds in its area to the base of the support column 10, as can be seen from a comparison of Figures 1 and 2 readily. The box-like end portions 22 are each closed by a cover plate 24 upwards.

Der Trägerrahmen 18 ruht auf vier Lenkrollenanordnungen 26, die an den vier äußeren freien Ecken des rechteckigen Trägerrahmens 18 befestigt sind. Die Lenkrollenanordnungen 26 sind alle identisch, so daß im folgenden nur eine von ihnen beschrieben wird.The support frame 18 rests on four castor assemblies 26 which are secured to the four outer free corners of the rectangular support frame 18. The caster assemblies 26 are all identical, so that only one of them will be described below.

Jede Lenkrollenanordnung 26 hat ein zylindrisches Rollengehäuse 28, das über einen Flansch 30 an dem Trägerrahmen 18 befestigt ist. Am unteren Ende des offenen zylindrischen Rollengehäuses 28 befindet sich ein Anschlagring 32. Dieser Anschlagring 32 dient als Begrenzung für eine Bewegung einer kreisscheibenförmigen Rollenplatte 34, auf deren Oberseite zwei Lagerböcke 36 angeordnet sind, die zur Lagerung zweier Rollen 38 mittels einer Achse 40 dienen. Der Abstand der Lagerbohrungen 42 in den Lagerböcken 36 und der Durchmesser der Rollen 38 ist so bemessen, daß letztere durch eine Öffnung 44 in der Rollenplatte 34 nach unten über die Rollenplatte 34 hinausragen und über den unteren Rand 46 des Rollengehäuses 28 nach unten vorstehen, wenn die Rollenplatte 34 auf dem Anschlagring 32 aufliegt.Each caster assembly 26 has a cylindrical roller housing 28 which is secured to the support frame 18 via a flange 30. At the lower end of the open cylindrical roller housing 28 there is a stop ring 32. This stop ring 32 serves as a limitation for a movement of a circular disk-shaped roller plate 34, on the top two bearing blocks 36 are arranged, which serve to support two rollers 38 by means of an axis 40. The distance of the bearing bores 42 in the bearing blocks 36 and the diameter of the rollers 38 is dimensioned so that the latter project through an opening 44 in the roller plate 34 down over the roller plate 34 and project beyond the lower edge 46 of the roller housing 28 downwards, when the roller plate 34 rests on the stop ring 32.

In das obere Ende des Rollengehäuses 28 ist ein Hydraulikring 48 eingesetzt, der mit der Gehäusewand mittels nicht dargestellter Schrauben verschraubt wird, welche Bohrungen 50 in der Gehäusewand durchsetzen und in Gewindebohrungen 52 des Hydraulikringes eingreifen. Der Hydraulikring enthält in gleichmäßigen Abständen über seinen Umfang verteilt gestrichelt angedeutete Hydraulikzylinder 54 zur Aufnahme von Kolben 56. Die Hydraulikzylinder 54 sind über eine nicht dargestellte Leitung innerhalb des Hydraulikringes 48 und einen Anschluß 58 mit einer Hydraulikquelle verbunden, die in dem in Fig.1 linken Endabschnitt 22 des Trägerrahmens 18 angeordnet ist. Die Hydraulikquelle enthält eine Hydraulikpumpe, die über ein Fußpedal 60 betätigt werden kann.In the upper end of the roller housing 28, a hydraulic ring 48 is used, which is bolted to the housing wall by means not shown screws, which pass through holes 50 in the housing wall and engage in threaded holes 52 of the hydraulic ring. The hydraulic ring contains at uniform intervals distributed over its circumference dashed lines indicated hydraulic cylinder 54 for receiving piston 56. The hydraulic cylinder 54 are connected via a line, not shown, within the hydraulic ring 48 and a terminal 58 to a hydraulic source, in the left in Fig.1 End portion 22 of the support frame 18 is arranged. The hydraulic source includes a hydraulic pump that can be actuated via a foot pedal 60.

Die Kolben 56 wirken über ein Kugellager 62 auf die Rollenplatte 34. Das Kugellager 62 ermöglicht die freie Drehbarkeit der Rollenplatte 34 um die vertikale Zylinderachse des Rollengehäuses 28. Das Kugellager 62 umfaßt einen Käfigring 64 mit Bohrungen 66 zur Aufnahme der nicht dargestellten Kugeln, die in einer Ringbahn 68 auf der Oberseite der Rollenplatte 34 laufen. Der Käfigring 64 wird durch einen Kugelring 70 abgedeckt, an dem die Kolben 56 anliegen. Nach oben hin ist das Rollengehäuse 28 durch einen Deckel 72 abgedeckt.The ball 56 allows the free rotation of the roller plate 34 about the vertical cylinder axis of the roller housing 28. The ball bearing 62 comprises a cage ring 64 with holes 66 for receiving the balls, not shown, in a ring track 68 on the top of the roller plate 34 run. The cage ring 64 is covered by a ball ring 70, against which the piston 56. Towards the top, the roller housing 28 is covered by a cover 72.

Während einer Operation wird der Operationstisch üblicherweise abgesenkt, so daß der Trägerrahmen 18 zusammen mit den Rollengehäusen 28 flach auf dem Boden aufliegt. Dadurch ergibt sich eine hohe Standsicherheit des Operationstisches. In dieser Stellung hat das Fußteil 12 eine sehr geringe Höhe, so daß die Holme (bzw. deren Anbauteile) eines herkömmlichen Lagerflächentransportwagens über die Rollengehäuse gleiten können. Dies ermöglicht es, von zwei Seiten her mit dem Lagerflächentransportwagen an die Stützsäule heranzufahren.During surgery, the operating table is usually lowered so that the support frame 18 rests flat with the roller housings 28 on the floor. This results in a high stability of the operating table. In this position, the foot part 12 has a very small height, so that the spars (or their attachments) of a conventional bearing surface transport carriage can slide over the roller housing. This makes it possible to approach the support column from two sides with the storage area transport car.

Soll der Operationstisch selbst transportiert, d.h. beispielsweise innerhalb des Operationssaales an eine andere Position verfahren werden, so wird Druckmittel zu den Zylindern 54 zugeführt, wodurch die Kolben 56 ausgefahren werden und über den Kugelring 70 die Rollenplatte 34 gegen den Anschlagring 32 drücken. Dadurch treten die Rollen 38 nach unten aus dem Rollengehäuse 28 heraus und heben den Trägerrahmen 18 von dem Boden ab. Ist die neue Position erreicht, werden die Zylinder 54 entlastet, so daß die Kolben 56 einfahren. Die Rollenplatte 34 wird durch das Gewicht des Operationstisches nach oben gedrückt, bis die Rollengehäuse 28 und/oder der Trägerrahmen 18 auf dem Boden aufliegen.If the operating table itself is to be transported, that is to say, for example, moved to a different position within the operating room, pressure will be applied supplied to the cylinders 54, whereby the piston 56 are extended and press on the ball ring 70, the roller plate 34 against the stop ring 32. As a result, the rollers 38 come down out of the roller housing 28 and lift the support frame 18 from the ground. When the new position is reached, the cylinders 54 are relieved, so that the piston 56 retract. The roller plate 34 is pushed upwards by the weight of the operating table until the roller housings 28 and / or the support frame 18 rest on the floor.

Claims (7)

  1. A base of an operating table comprising a support column (10) and a patient support surface, which base has an at least almost approximately rectangular plate-shaped support frame (18) that is used to receive the support column (10) and rests on steering rollers (38) and has at each of its corners one roller casing (28) rigidly connected thereto, the height of which roller casing is at least approximately equal to the height of the support frame (18) and in each of which one steering roller (38) is arranged such that it is adjustable in height between an extended position in which it is supported on the floor and keeps the support frame (18) with the roller casings (28) at a distance to the floor and a retracted position in which the support frame (18) and/or the roller casings (28) rest on the floor, with the steering roller (38) being mounted on a roller support (34) which is adjustable on the roller casing (28) and rotatably mounted about a vertical axis, and with an adjusting device (48, 54, 56) for the height adjustment of the roller support (34) being provided in the roller casing, characterised in that the roller casing (28) is cylindrical in shape and has a vertical cylinder axis and in that the roller support comprises a plate (34) that can be moved within the roller casing (28) like a piston, on which plate bearing blocks (36) for the steering roller (38) are mounted and which is rotatably mounted about the cylinder axis in the roller casing (28) by means of a roller element bearing (62), and in that the bearing blocks (36) are mounted on the side of the roller plate (34) facing away form the floor and the steering roller (38) projects through an aperture (44) in the roller plate (34).
  2. The base according to claim 1, characterized in that the adjusting device comprises at least one pressure-actuated piston cylinder arrangement (54, 56).
  3. The base according to claim 1 or 2, characterized in that the adjusting device comprises a pressure distribution ring (48) which is firmly inserted in the roller casing (28) coaxially to the cylinder axis and which has a plurality of pressure cylinders (54) which can be connected to a pressure source and in each of which one piston (56) is arranged that can be moved parallel to the cylinder axis for acting on the roller carrier (34).
  4. The base according to claims 1 to 3, characterized in that the support frame (18) has a bridge-like middle section (20) for receiving the support column (10) and two casing-type end sections (22), on the free corners of which the roller casings (28) are mounted.
  5. The base according to claims 3 and 4, characterized in that the pressure source is arranged in one of the casing-type end sections (22).
  6. The base according to one of the claims 1 to 5, characterized in that the width of the support frame (18) is approximately equal to the width of the support column (10).
  7. An operating table comprising a support column and a patient support surface releasably connectable to the support column, characterized by a base according to one of the claims 1 to 6.
EP04022814A 2003-11-12 2004-09-24 Foot for an operating table Expired - Lifetime EP1530958B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10352707A DE10352707A1 (en) 2003-11-12 2003-11-12 Foot part for an operating table
DE10352707 2003-11-12

Publications (3)

Publication Number Publication Date
EP1530958A2 EP1530958A2 (en) 2005-05-18
EP1530958A3 EP1530958A3 (en) 2006-02-22
EP1530958B1 true EP1530958B1 (en) 2007-03-28

Family

ID=34428675

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EP04022814A Expired - Lifetime EP1530958B1 (en) 2003-11-12 2004-09-24 Foot for an operating table

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US (1) US7334276B2 (en)
EP (1) EP1530958B1 (en)
JP (1) JP3995255B2 (en)
AT (1) ATE357896T1 (en)
DE (2) DE10352707A1 (en)
ES (1) ES2282773T3 (en)

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DE102017120001B4 (en) * 2017-08-31 2019-03-14 Schmitz u. Söhne GmbH & Co. Kommanditgesellschaft Foot part for a support column and a patient support surface having operating table

Also Published As

Publication number Publication date
US20050144722A1 (en) 2005-07-07
ES2282773T3 (en) 2007-10-16
DE502004003335D1 (en) 2007-05-10
JP3995255B2 (en) 2007-10-24
ATE357896T1 (en) 2007-04-15
JP2005144174A (en) 2005-06-09
EP1530958A3 (en) 2006-02-22
US7334276B2 (en) 2008-02-26
EP1530958A2 (en) 2005-05-18
DE10352707A1 (en) 2005-06-16

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