EP2036526B1 - Transportwagen für die Patientenlagerfläche eines Operationstisches - Google Patents

Transportwagen für die Patientenlagerfläche eines Operationstisches Download PDF

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Publication number
EP2036526B1
EP2036526B1 EP08161814.2A EP08161814A EP2036526B1 EP 2036526 B1 EP2036526 B1 EP 2036526B1 EP 08161814 A EP08161814 A EP 08161814A EP 2036526 B1 EP2036526 B1 EP 2036526B1
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EP
European Patent Office
Prior art keywords
chassis
roller
axis
transport carriage
lifting device
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.)
Active
Application number
EP08161814.2A
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English (en)
French (fr)
Other versions
EP2036526A3 (de
EP2036526A2 (de
Inventor
Jan Donat Olszewski
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
Priority to PL08161814T priority Critical patent/PL2036526T3/pl
Publication of EP2036526A2 publication Critical patent/EP2036526A2/de
Publication of EP2036526A3 publication Critical patent/EP2036526A3/de
Application granted granted Critical
Publication of EP2036526B1 publication Critical patent/EP2036526B1/de
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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
    • A61G13/06—Adjustable operating tables; Controls therefor raising or lowering of the whole table surface
    • 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
    • A61G3/00—Ambulance aspects of vehicles; Vehicles with special provisions for transporting patients or disabled persons, or their personal conveyances, e.g. for facilitating access of, or for loading, wheelchairs
    • A61G3/02—Loading or unloading personal conveyances; Facilitating access of patients or disabled persons to, or exit from, vehicles
    • 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
    • A61G13/104—Adaptations for table mobility, e.g. arrangement of 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
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/10—Parts, details or accessories
    • A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
    • A61G13/128—Rests specially adapted therefor; Arrangements of patient-supporting surfaces with mechanical surface adaptations
    • A61G13/1285—Rests specially adapted therefor; Arrangements of patient-supporting surfaces with mechanical surface adaptations having modular surface parts, e.g. being replaceable or turnable
    • 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
    • A61G2203/00—General characteristics of devices
    • A61G2203/70—General characteristics of devices with special adaptations, e.g. for safety or comfort
    • A61G2203/80—General characteristics of devices with special adaptations, e.g. for safety or comfort for connecting a trolley to a device, e.g. bed or column table

Definitions

  • the invention relates to a trolley for the patient support surface of a surgical table, comprising a chassis, two supports arranged thereon, each having at its upper ends an interface for connection to a complementary interface on the patient support surface, and a lifting device for height adjustment of the interfaces relative to the chassis.
  • the supports are telescopically designed to allow a height adjustment of the interfaces by pushing together or pulling apart of the supports.
  • High tilting moments which occur due to a strong eccentric storage of patients, cause high friction in this type of height guidance.
  • To overcome this friction correspondingly strong drives must be provided for the height adjustment.
  • a drive for a height adjustment is off WO97 / 42876 known.
  • the invention has for its object to provide a trolley of the aforementioned type mentioned, in which the height adjustment can be done with low friction.
  • the supports are supported by a pivoting frame which is pivotally mounted about a horizontal pivot axis on the chassis and adjustable by means of the lifting device, that the supports are each connected by a hinge with the pivot axis parallel pivot axis with the swing frame and that the Supports are each guided at a vertical distance from the hinge by means of a roller with parallel to the pivot axis roller axis on the chassis so that a through the hinge axis and the roller axis perpendicular to this line during the adjustment of the swing frame remains vertical.
  • the involved in the height adjustment parts are all stored in rotary or swivel joints, which can be performed very low friction. This results in a low power loss and the linear actuator can be performed according to simple and inexpensive, since he does not have to take cornering forces.
  • the swing frame comprises two hinged to the chassis spars, each carrying a support and are connected to each other by a cross brace, which acts on the lifting device.
  • the lifting device may comprise a hydraulic lifting unit or be formed electromechanically.
  • the roller is formed by a roller bearing, which is connected to the respective support and guided on the chassis.
  • the guideway may for example be formed by a slot in a chassis-fixed part in which the roller bearing is running.
  • the course of the guideway is obtained by starting from a through the joint center of the joint around the pivot axis of the swing frame struck circle each corresponding to the distance between the hinge axis and the roller axis Distance on vertical parallel lines.
  • the guideway is given by the line connecting the circle ends far away.
  • the in the Fig.1 to 3 illustrated dolly comprises a generally designated 10 chassis with a chassis frame 12, which consists of two longitudinal beams 14 which are interconnected by two transverse bars 16. At the ends of the longitudinal members 14 each steering rollers 18 are arranged. In a middle region of the longitudinal bars 14 is via a projection 20 (FIG. Figure 3 ) each attached a vertically directed plate 22. At the lower edge of a guide rail 24 is fixed, which is connected near the front end of the respective longitudinal beam 14 with this via an arm 26 and is curved towards the front end of the trolley out to the outside. The Guideways 24 should facilitate the approach of the trolley to the pillar of the operating table on which the patient support surface is located.
  • a triangular roller carrier 28 is also pivotally mounted about an axis 30, on which a support roller 32 is rotatably mounted. By pivoting the roller carrier 28, the support roller 32 can be raised or lowered to the ground.
  • the chassis 10 carries a generally designated 34 pivoting frame, which consists of two longitudinal members 36 which at one of its ends via a transverse strut 38 (FIG. Figure 3 ) are connected to each other and at their respective other ends to a pivotally supported by the respective longitudinal spar 14 bearing block 40 about a pivot axis 42.
  • the two longitudinal members 36 are connected to each other near the cross member 38 by a bracket 44, in the longitudinal center of the piston rod 46 of a hydraulic lifting cylinder 48 engages, which in turn between two arms 50 which are rigidly connected to one of the transverse bars 16 , Is mounted pivotably about a pivot axis 52.
  • the hydraulic lifting cylinder 48 can be operated on both sides of the chassis 10 arranged foot lever 54 to the pivot frame 34 in the direction of the double arrow B between in the Fig.1 illustrated lowest position and the in Fig.2 to adjust the highest position shown.
  • Each of the side members 36 carries in a central region a bearing block 56, on which a support 58 with an interface 60, which can be coupled for coupling with a complementary interface on a patient support surface, not shown, of a surgical table, in a hinge 62 about a hinge axis 64 pivotally is stored.
  • the support 58 further includes a rigid Sword 66 connected to the interface 60 carries at its lower end a roller bearing 68 with a roller axis 69.
  • the roller bearing 68 is guided in a guideway 70 formed by a curved slot in the plate 22. This guidance of the sword 66 ensures that the support 58 always retains the pivot position of the pivoting frame 34 about the pivot axis 42 indicated by the dotted line 72 vertical position.
  • the shape of the guideway 70 can be determined in a simple manner by removing the distance between the articulation axis 64 and the roller axis 69 on a circle running parallel to the horizontal axis on parallel vertical lines, starting from a pivot axis 42 and passing through the articulation axis 64. A connecting line through the foot points of these routes corresponds to the course of the guideway 70.

Landscapes

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

Description

  • Die Erfindung betrifft einen Transportwagen für die Patientenlagerfläche eines Operationstisches, umfassend ein Fahrgestell, zwei daran angeordnete Stützen, die an ihren oberen Enden jeweils eine Schnittstelle zur Verbindung mit einer komplementären Schnittstelle an der Patientenlagerfläche haben, und einer Hubvorrichtung zur Höhenverstellung der Schnittstellen relativ zum Fahrgestell.
  • Bei einer bekannten Ausführungsform eines derartigen Transportwagens sind die Stützen teleskopisch ausgebildet, um durch Zusammenschieben oder Auseinanderziehen der Stützen eine Höhenverstellung der Schnittstellen zu ermöglichen. Hohe Kippmomente, die durch eine stark außermittige Lagerung von Patienten auftreten, verursachen bei dieser Art der Höhenführung eine hohe Reibung. Zur Überwindung dieser Reibung müssen entsprechend starke Antriebe für die Höhenverstellung vorgesehen sein. Ein Antrieb für eine Höhenverstellung ist aus WO97/42876 bekannt.
  • Der Erfindung liegt die Aufgabe zugrunde, einen Transportwagen der vorstehende genannten Art anzugeben, bei dem die Höhenverstellung reibungsarm erfolgen kann.
  • Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Stützen von einem Schwenkrahmen getragen sind, der um eine horizontale Schwenkachse schwenkbar an dem Fahrgestell gelagert und mittels der Hubvorrichtung verstellbar ist, dass die Stützen jeweils durch ein Gelenk mit zur Schwenkachse paralleler Gelenkachse mit dem Schwenkrahmen verbunden sind und dass die Stützen jeweils in einem vertikalen Abstand von dem Gelenk mittels einer Rolle mit zur Schwenkachse paralleler Rollenachse an dem Fahrgestell derart geführt sind, dass eine durch die Gelenkachse und die Rollenachse senkrecht zu diesen verlaufende Linie bei der Verstellung des Schwenkrahmens vertikal bleibt.
  • Die bei der Höhenverstellung beteiligten Teile sind alle in Dreh- oder Schwenkgelenken gelagert, die sehr reibungsarm ausgeführt werden können. Somit ergibt sich eine geringer Verlustleistung und der Hubantrieb kann entsprechend einfach und kostengünstig ausgeführt werden, da er keine Seitenführungskräfte aufnehmen muss.
  • Vorzugsweise umfasst der Schwenkrahmen zwei an dem Fahrgestell angelenkte Holme, die jeweils eine Stütze tragen und durch eine Querstrebe miteinander verbunden sind, an der die Hubvorrichtung angreift.
  • Die Hubvorrichtung kann eine hydraulische Hubeinheit umfassen oder elektromechanisch ausgebildet sein.
  • Vorzugsweise ist die Rolle von einem Rollenlager gebildet, das mit der jeweiligen Stütze verbunden und an dem Fahrgestell geführt ist. Die Führungsbahn kann beispielsweise von einem Langloch in einem fahrgestellfesten Teil gebildet sein, in dem das Rollenlager läuft. Den Verlauf der Führungsbahn erhält man, indem man ausgehend von einem durch den Gelenkmittelpunkt des Gelenkes um die Schwenkachse des Schwenkrahmens geschlagenen Kreis jeweils die dem Abstand zwischen der Gelenkachse und der Rollenachse entsprechende Strecke auf vertikalen parallelen Linien abträgt. Die Führungsbahn wird durch die Linie gegeben, welche die dem Kreis fernen Streckenenden miteinander verbindet.
  • Die folgende Beschreibung erläutert in Verbindung mit den beigefügten Zeichnungen die Erfindung anhand eines Ausführungsbeispiels. Es zeigen:
    • Fig.1
    einen Längsschnitt durch den erfindungsgemäßen Transportwagen entlang Linie I-I in Fig.3 mit dem Schwenkrahmen in seiner unters- ten Stellung,
    Fig.2
    eine Seitenansicht des Transportwagens mit dem Schwenkrahmen in seiner höchsten Stellung und
    Fig.3
    eine Ansicht des Transportwagens von vorne, d.h. in Richtung des Pfeiles A in Fig.2.
  • Der in den Fig.1 bis 3 dargestellte Transportwagen umfasst ein allgemein mit 10 bezeichnetes Fahrgestell mit einem Fahrgestellrahmen 12, der aus zwei Längsholmen 14 besteht, die durch zwei Querholme 16 miteinander verbunden sind. An den Enden der Längsholme 14 sind jeweils Lenkrollen 18 angeordnet. In einem mittleren Bereich der Längsholme 14 ist über einen Ansatz 20 (Fig.3) jeweils eine vertikal gerichtete Platte 22 befestigt. An deren unterem Rand ist eine Leitschiene 24 befestigt, die nahe dem vorderen Ende des jeweiligen Längsholmes 14 mit diesem über einen Arm 26 verbunden ist und zum vorderen Ende des Transportwagens hin nach außen gekrümmt ist. Die Leitschienen 24 sollen das Heranfahren des Transportwagens an die Säule des Operationstisches, auf der die Patientenlagerfläche liegt, erleichtern. An dem unteren Ende der Platte 22 ist ferner ein dreieckförmiger Rollenträger 28 um eine Achse 30 schwenkbar gelagert, an dem eine Stützrolle 32 drehbar gelagert ist. Durch Verschwenken des Rollenträgers 28 kann die Stützrolle 32 angehoben bzw. auf den Boden abgesenkt werden.
  • Das Fahrgestell 10 trägt einen allgemein mit 34 bezeichneten Schwenkrahmen, der aus zwei Längsträgern 36 besteht, die an einem ihrer Enden über eine Querstrebe 38 (Fig.3) miteinander verbunden sind und an ihren jeweiligen anderen Enden an einem von dem jeweiligen Längsholm 14 getragenen Lagerbock 40 um eine Schwenkachse 42 schwenkbar angelenkt sind. Zusätzlich zu der Querstrebe 38 sind die beiden Längsträger 36 nahe der Querstrebe 38 noch durch einen Bügel 44 miteinander verbunden, in dessen Längsmitte die Kolbenstange 46 eines hydraulischen Hubzylinders 48 angreift, der seinerseits zwischen zwei Armen 50, die mit einem der Querholme 16 starr verbunden sind, um eine Schwenkachse 52 schwenkbar gelagert ist. Der hydraulische Hubzylinder 48 kann über beiderseits des Fahrgestelles 10 angeordnete Fußhebel 54 betätigt werden, um den Schwenkrahmen 34 in Richtung des Doppelpfeiles B zwischen der in der Fig.1 dargestellten tiefsten Stellung und der in Fig.2 dargestellten höchsten Stellung zu verstellen.
  • Jeder der Längsträger 36 trägt in einem mittleren Bereich einen Lagerbock 56, an dem eine Stütze 58 mit einer Schnittstelle 60, die zur Kopplung mit einer komplementären Schnittstelle an einer nicht dargestellten Patientenlagerfläche eines Operationstisches gekoppelt werden kann, in einem Gelenk 62 um eine Gelenkachse 64 schwenkbar gelagert ist. Die Stütze 58 umfasst ferner ein starr mit der Schnittstelle 60 verbundenes Schwert 66, das an seinem untern Ende ein Rollenlager 68 mit einer Rollenachse 69 trägt. Das Rollenlager 68 ist in einer von einem gekrümmten Langloch in der Platte 22 gebildeten Führungsbahn 70 geführt. Diese Führung des Schwertes 66 stellt sicher, dass die Stütze 58 beim Verschwenken des Schwenkrahmens 34 um die Schwenkachse 42 stets die durch die strichpunktierte Linie 72 bezeichnete vertikale Stellung beibehält. Die Form der Führungsbahn 70 lässt sich auf einfache Weise dadurch ermitteln, dass man ausgehend von einem um die Schwenkachse 42 geschlagenen und durch die Gelenkachse 64 verlaufenden Kreis auf parallelen vertikalen Linien jeweils den Abstand zwischen der Gelenkachse 64 und der Rollenachse 69 abträgt. Eine Verbindungslinie durch die Fußpunkte dieser Strecken entspricht dem Verlauf der Führungsbahn 70.

Claims (6)

  1. Transportwagen für die Patientenlagerfläche eines Operationstisches, umfassend ein Fahrgestell (10), zwei daran angeordnete Stützen (58), die an ihre oberen Ende jeweils eine Schnittstelle (60) zur Verbindung mit einer komplementären Schnittstelle an der Patientenlagerfläche haben, und eine Hubvorrichtung (48) zur Höhenverstellung der Schnittstellen (60) relativ zum Fahrgestell (10), dadurch gekennzeichnet, dass die Stützen (58) von einem Schwenkrahmen (34) getragen sind, der um eine horizontale Schwenkachse (42) schwenkbar an dem Fahrgestell (10) gelagert und mittels der Hubvorrichtung (48) verstellbar ist, dass die Stützen (58) jeweils durch ein Gelenk (62) mit zur Schwenkachse (42) paralleler Gelenkachse (64) mit dem Schwenkrahmen (34) verbunden sind und dass die Stützen (58) jeweils in einem vertikalen Abstand von dem Gelenk (62) mittels einer Rolle (68) mit zur Schwenkachse paralleler Rollenachse (69) an einer fahrgestellfesten Führungsbahn (70) derart geführt sind, dass eine durch die Gelenkachse (64) und die Rollenachse (68) senkrecht zu diesen verlaufende Linie (70) bei der Verstellung des Schwenkrahmens (34) vertikal bleibt.
  2. Transportwagen nach Anspruch 1, dadurch gekennzeichnet, dass der Schwenkrahmen (34) zwei an dem Fahrgestell (10) angelenkte Träger (36) umfasst, die jeweils eine Stütze (58) tragen und durch einen Bügel (44) miteinander verbunden sind, an dem die Hubvorrichtung (48) angreift.
  3. Transportwagen nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Hubvorrichtung (48) mindestens eine hydraulische Hubeinheit umfasst.
  4. Transportwagen nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Hubvorrichtung mindestens eine elektromechanische Hubeinheit umfasst.
  5. Transportwagen nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Rolle an der jeweiligen Stütze (58) von einem Rollenlager (68) gebildet ist.
  6. Transportwagen nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Führungsbahn (70) von einem Langloch in einem fahrgestellfesten Teil (22) gebildet ist.
EP08161814.2A 2007-09-12 2008-08-05 Transportwagen für die Patientenlagerfläche eines Operationstisches Active EP2036526B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08161814T PL2036526T3 (pl) 2007-09-12 2008-08-05 Wózek transportowy dla leżyska dla pacjenta stołu operacyjnego

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007043431A DE102007043431A1 (de) 2007-09-12 2007-09-12 Transportwagen für die Patientenlagerfläche eines Operationstisches

Publications (3)

Publication Number Publication Date
EP2036526A2 EP2036526A2 (de) 2009-03-18
EP2036526A3 EP2036526A3 (de) 2010-09-01
EP2036526B1 true EP2036526B1 (de) 2013-06-19

Family

ID=40032528

Family Applications (1)

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EP08161814.2A Active EP2036526B1 (de) 2007-09-12 2008-08-05 Transportwagen für die Patientenlagerfläche eines Operationstisches

Country Status (11)

Country Link
US (1) US8136185B2 (de)
EP (1) EP2036526B1 (de)
JP (1) JP4939503B2 (de)
KR (1) KR20090027591A (de)
CN (1) CN101396321B (de)
BR (1) BRPI0803372B8 (de)
CA (1) CA2639495A1 (de)
DE (1) DE102007043431A1 (de)
ES (1) ES2422283T3 (de)
PL (1) PL2036526T3 (de)
RU (1) RU2415661C2 (de)

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Also Published As

Publication number Publication date
CN101396321A (zh) 2009-04-01
RU2415661C2 (ru) 2011-04-10
EP2036526A3 (de) 2010-09-01
US8136185B2 (en) 2012-03-20
RU2008136638A (ru) 2010-03-20
US20090067963A1 (en) 2009-03-12
BRPI0803372A2 (pt) 2009-05-05
ES2422283T3 (es) 2013-09-10
JP4939503B2 (ja) 2012-05-30
KR20090027591A (ko) 2009-03-17
DE102007043431A1 (de) 2009-03-19
CN101396321B (zh) 2012-06-27
EP2036526A2 (de) 2009-03-18
BRPI0803372B8 (pt) 2021-06-22
PL2036526T3 (pl) 2013-11-29
CA2639495A1 (en) 2009-03-12
BRPI0803372B1 (pt) 2018-12-18
JP2009066407A (ja) 2009-04-02

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