EP1565143A1 - Leg support arrangement for operating tables - Google Patents

Leg support arrangement for operating tables

Info

Publication number
EP1565143A1
EP1565143A1 EP03811345A EP03811345A EP1565143A1 EP 1565143 A1 EP1565143 A1 EP 1565143A1 EP 03811345 A EP03811345 A EP 03811345A EP 03811345 A EP03811345 A EP 03811345A EP 1565143 A1 EP1565143 A1 EP 1565143A1
Authority
EP
European Patent Office
Prior art keywords
leg
lower leg
joint
support
axis
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.)
Granted
Application number
EP03811345A
Other languages
German (de)
French (fr)
Other versions
EP1565143B1 (en
Inventor
Guido Koch
Bernhard Katzenstein
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 EP1565143A1 publication Critical patent/EP1565143A1/en
Application granted granted Critical
Publication of EP1565143B1 publication Critical patent/EP1565143B1/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
    • A61G13/10—Parts, details or accessories
    • A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
    • A61G13/1205—Rests specially adapted therefor; Arrangements of patient-supporting surfaces for specific parts of the body
    • A61G13/1245—Knees, upper or lower legs

Definitions

  • the invention relates to a leg plate arrangement for operating tables with two leg plates, which are connected to a base element of a QP table top such that they are adjustable between a basic position in which they are parallel to the longitudinal center axis of the operating table top close together and an expanding position, in which they have a distance from the longitudinal center axis.
  • the legs of the patient lying on the operating table must be spread out.
  • the leg plates in an expansion joint with directed perpendicular to the operating table top plate pivotally hinged to the base member, so that the leg plates can be swung around the hip-near spreader joint and a free space in the middle region between the leg plates.
  • recesses are usually provided on the mutually facing edges of the leg plate near the base element, the space created during pivoting of the leg plates is not sufficient for all applications.
  • the invention has for its object to provide a leg plate assembly of the type mentioned, in which a sufficient clearance between the leg plates can be created.
  • the respective leg plate is connected to the base member via a Parallelogrammgelenk whose hinge axes are directed perpendicular to the surgical table top level.
  • the respective leg plate is offset laterally outwards by the parallelogram joint parallel to itself. This results in a much larger clearance between the leg plates, as would be possible with an equal spread of the patient's legs with the conventional leg plates, which are pivoted about a hip-joint spreading joint.
  • each leg plate comprises a thigh support and a lower leg support, which are each pivotable in a hinged joint about a horizontal axis relative to the base member or relative to each other, as shown for example in US 6,276,012 B2.
  • the respective thigh support is connected via two parallelogram joint forming the handlebar with a connector, are articulated to the first ends of the handlebars and pivotally connected to the base member about the pivot axis for the thigh support, and that the second ends of the links are hinged to the thigh support on which the folding joint is designed for the lower leg rest.
  • the solution according to the invention has the advantage that both the folding axis for the thigh support and the folding axis for the lower leg rest maintain their direction in space when the leg plates are moved away from each other or towards each other. This ensures that the lower leg rest is bent when the leg plate is bent, i. when swinging the thigh support and folding down the lower leg support, this is not tilted. This prevents the lower leg from sliding sideways from the lower leg rest.
  • the thigh support is not formed in one piece but comprises a link and a releasably connectable with this Thigh plate, wherein the links are hinged to the link and the folding joint is designed for the lower leg plate.
  • the lower leg rest also preferably includes a lower leg spar and a lower leg plate that can be detachably connected thereto. The link with the links of the parallelogram joint and the lower leg spar thus form a support structure of the leg plate for the thigh plate and the lower leg plate, which can be replaced if necessary.
  • the lower leg is connected via a spreader with an articulated arm, which is connected to the link via the folding joint for the lower leg support, wherein the axis of the Sp Dreckenkes perpendicular to the axis of the folding joint and directed perpendicular to the plane of the lower leg plate.
  • the order of the joint assembly - considered from the base element for Unterschenkelauf down - in conjunction with the parallel guide the thigh support ensures that the lower leg plate always pivots even with pivoted and spread thigh plate about a horizontal folding axis and thus tilting of the lower leg plate is excluded about a longitudinal axis ,
  • the connector is insertable into an operating table fixed receptacle, which is part of the folding joint for the thigh support.
  • the leg plate can be quickly and easily connected to the base element or released from this and optionally replaced by another leg plate.
  • Figure 1 is a perspective view obliquely from above on one with a
  • FIG. 2 shows a plan view of the arrangement according to FIG. 1 with the leg plates in the spread position
  • FIG. 3 shows a view of the leg plate arrangement from the foot end with bent leg plates
  • FIG. 4 is a perspective view of the arrangement shown in FIG. 1 with a leg plate pivoted completely downwards and a lower leg rest folded down;
  • FIG. 5 is a perspective view of the support structure of a leg plate
  • Figure 6 is a side view of the structure shown in Figure 5 in the direction of
  • FIG. 1 shows part of a patient support surface or operating table top with a base element 10, which is usually connected to or connectable to the column head of the support column of an operating table.
  • a leg plate assembly 12 comprising two leg plates 14.
  • Each leg plate 14 has a thigh support 16 and a lower leg support 18.
  • the thigh supports 16 are connected by joints to the base member 10 and the lower leg supports 18 are connected by joints to the respective thigh support 16 so that the thigh supports 16 and lower leg support layers 18 are adjusted to different positions can be.
  • Figure 1 shows the leg plates 12 and their parts 16, 18 in a basic position in which the leg plates 12 are directed parallel to the longitudinal central axis 20 of the operating table top and are close to each other.
  • FIG. 2 shows the arrangement according to FIG.
  • FIG. 3 shows a position in which the thigh supports 16 of both leg plates 14 are folded vertically upwards about a horizontal folding axis 22, the thigh support 16 left in FIG. 3 being displaced outwards in the direction of the arrow B at the same time.
  • the lower leg supports 18 of both leg plates 14 are each folded around a horizontal folding axis relative to the respective thigh support 16 in the horizontal position, wherein the left lower leg support 18 in FIG. 3 is additionally pivoted outwards about its expansion axis.
  • FIG. 4 shows a position in which the left leg plate in FIG. 4 is pivoted completely downwards about the horizontal folding axis 22, whereas on the right leg plate 14 only the lower leg rest 18 is folded down vertically.
  • Figure 5 can be seen a generally designated 24 fitting with a yoke 26 and a rigidly connected to this pin 28.
  • the connector 24 can be inserted into a receptacle 30 which hinged about the horizontal folding axis 22 to the base member 10 pivotally is.
  • the receptacle 30 can be tightened by a non-illustrated, because known clamping mechanism 32 in a desired pivotal position about the axis 22.
  • the fitting 24 can be anchored in the receptacle 30 in a manner not shown.
  • the hinged joint with the folding axis 22 could also be integrated into the connecting piece 24.
  • a first link 34 is pivotally mounted about a pivot axis 36 and can be fixed by means of a known eccentric clamping mechanism 37 with a clamping lever 38 and toothed discs 40 in a desired pivotal position about the axis 36.
  • the link 34 is pivotally connected at its other end with a link 42 about a hinge axis 44.
  • the link 42 is plate-shaped and serves to hold a thigh plate 46 which can be fastened to the link 42 by means of screws 42 passing through the link 42 in holes 48 passing through them.
  • the link 42 and the thigh plate 46 together form the thigh pad 16.
  • the yoke 26 and the link 42 are further connected to each other via a second link 50 which is pivotally connected at one end to the yoke 26 about an axis 52 and with its other End is hinged to the link 42 about an axis 54 pivotally.
  • the two links 34 and 50 form with their joint axes 36, 52 and 44, 54 a parallelogram joint, through which the link 42 and with him the thigh plate 46 can be adjusted parallel to itself, without changing its orientation in space.
  • an articulated arm 56 is pivotally mounted in a hinged joint 58 about a horizontal folding axis 60.
  • the articulated arm 56 can be fixed in any folding position by means of an eccentric tensioning mechanism 61, which can be operated via a tensioning lever 62.
  • the eccentric clamping mechanism 61 is constructed in a similar manner as the clamping mechanism 37 intended for fixing the first link 34.
  • the articulated arm 56 has a yoke 64, which forms an expansion joint 66 for a lower leg spar 68.
  • the lower leg spar 68 serves to hold a lower leg plate 70.
  • the spreading axis 72 of the expansion joint 66 is directed perpendicular to the folding axis 60 and to the level of the lower leg plate 70.
  • the expansion joint 66 can be tensioned by means of an eccentric tensioning mechanism 74 be like the previously mentioned tensioning mechanisms comprises a clamping lever 76 and pulleys 78.
  • the respective thigh support 16 or the leg plate 14 as a whole can be pivoted relative to the base member 10 first about the pivot axis 22 up and down. Furthermore, the thigh support 16 or the leg plate 14 as a whole can be displaced laterally relative to the base element 10 with the aid of the parallelogram joint 34, 40, 36, 52, 44, 54, as shown in FIG.
  • the lower leg support 18 can be pivoted relative to the thigh support 16 on the one hand around the horizontal folding axis 60 (FIGS. 3 and 4) and on the other hand can be rotated about the expansion axis 72 (FIG. 2). Due to the fact that the thigh support 18 is adjusted by means of the parallelogram joint, the two folding axes 22 and 60 always remain parallel and horizontal.

Abstract

The invention relates to a leg support arrangement for operating tables comprising two leg supports, connected to a base element of an operating table such that, the above are adjustable between a base position, lying adjacent to each other parallel to the longitudinal mid-axis of the operating table and a spread position with a separation from the longitudinal mid-axis, whereby each leg support is connected to the base element by means of a parallelogram joint, the joint axes ( 36, 52, 44, 54 ) of which are arranged perpendicular to the plane of the base element.

Description

Beinplattenanordnunq für Operationstische Leg plate arrangement for operating tables
Die Erfindung betrifft eine Beinplattenanordnung für OP-Tische mit zwei Beinplatten, die mit einem Basiselement einer QP-Tischplatte derart verbunden sind, daß sie zwischen einer Grundstellung, in der sie parallel zur Längsmittelachse der OP- Tischplatte dicht beieinander liegen und einer Spreizstellung verstellbar sind, in der sie einen Abstand von der Längsmittelachse haben.The invention relates to a leg plate arrangement for operating tables with two leg plates, which are connected to a base element of a QP table top such that they are adjustable between a basic position in which they are parallel to the longitudinal center axis of the operating table top close together and an expanding position, in which they have a distance from the longitudinal center axis.
Bei allen Operationstechniken, bei denen der Operateur fußseits an das Operationsfeld herantritt, müssen die Beine des auf dem Operationstisch liegenden Patienten ausgespreizt werden. Bei den herkömmlichen Operationstischen sind die Beinplatten in einem Spreizgelenk mit senkrecht zur OP-Tischplatte gerichteter Achse schwenkbar an dem Basiselement angelenkt, so daß die Beinplatten um das hüftnahe Spreizgelenk ausgeschwenkt werden können und ein Freiraum im Mittenbereich zwischen den Beinplatten entsteht. Obwohl in der Regel an den einander zugekehrten Rändern der Beinplatte nahe dem Basiselement Aussparungen vorgesehen sind, ist der beim Ausschwenken der Beinplatten entstehende Freiraum nicht für alle Anwendungen ausreichend.In all surgical techniques in which the surgeon approaches the foot of the surgical field, the legs of the patient lying on the operating table must be spread out. In the conventional operating tables, the leg plates in an expansion joint with directed perpendicular to the operating table top plate pivotally hinged to the base member, so that the leg plates can be swung around the hip-near spreader joint and a free space in the middle region between the leg plates. Although recesses are usually provided on the mutually facing edges of the leg plate near the base element, the space created during pivoting of the leg plates is not sufficient for all applications.
Der Erfindung liegt die Aufgabe zugrunde, eine Beinplattenanordnung der eingangs genannten Art anzugeben, bei der ein hinreichender Freiraum zwischen den Beinplatten geschaffen werden kann.The invention has for its object to provide a leg plate assembly of the type mentioned, in which a sufficient clearance between the leg plates can be created.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die jeweilige Beinplatte mit dem Basiselement über ein Parallelogrammgelenk verbunden ist, dessen Gelenkachsen senkrecht zur Ebene der OP-Tischplatte gerichtet sind. Bei der erfindungsgemäßen Lösung wird die jeweilige Beinplatte durch das Parallelogrammgelenk parallel zu sich selbst seitlich nach außen versetzt. Dadurch entsteht zwischen den Beinplatten ein wesentlich größerer Freiraum, als dies bei einer gleichen Spreizung der Patientenbeine mit den herkömmlichen Beinplatten möglich wäre, die um ein hüftnahes Spreizgelenk verschwenkt werden.This object is achieved in that the respective leg plate is connected to the base member via a Parallelogrammgelenk whose hinge axes are directed perpendicular to the surgical table top level. In the solution according to the invention, the respective leg plate is offset laterally outwards by the parallelogram joint parallel to itself. This results in a much larger clearance between the leg plates, as would be possible with an equal spread of the patient's legs with the conventional leg plates, which are pivoted about a hip-joint spreading joint.
Bei vielen Anwendungen müssen nicht nur die Beine des Patienten ausgespreizt sondern auch die Unterschenkel gebeugt werden. Hierzu sind Beinplattenanordnungen bekannt, bei denen jede Beinplatte eine Oberschenkelauflage und eine Unterschenkelbauflage umfaßt, die jeweils in einem Klappgelenk um eine horizontale Achse relativ zum Basiselement bzw. relativ zueinander verschwenkbar sind, wie dies beispielsweise die US 6,276,012 B2 zeigt. Für eine solche Beinplattenanordnung wird erfindungsgemäß vorgeschlagen, daß die jeweilige Oberschenkelauflage über zwei das Parallelogrammgelenk bildende Lenker mit einem Anschlußstück verbunden ist, an dem erste Enden der Lenker angelenkt sind und das mit dem Basiselement um die Klappachse für die Oberschenkelauflage schwenkbar verbindbar ist, und daß die zweiten Enden der Lenker an der Oberschenkelauflage angelenkt sind, an der das Klappgelenk für die Unterschenkelauflage ausgebildet ist.In many applications not only the legs of the patient must spread out but also the lower legs are bent. For this purpose, leg plate arrangements are known in which each leg plate comprises a thigh support and a lower leg support, which are each pivotable in a hinged joint about a horizontal axis relative to the base member or relative to each other, as shown for example in US 6,276,012 B2. For such a leg plate assembly is proposed according to the invention that the respective thigh support is connected via two parallelogram joint forming the handlebar with a connector, are articulated to the first ends of the handlebars and pivotally connected to the base member about the pivot axis for the thigh support, and that the second ends of the links are hinged to the thigh support on which the folding joint is designed for the lower leg rest.
Die erfindungsgemäße Lösung hat den Vorteil, daß sowohl die Klappachse für die Oberschenkelauflage als auch die Klappachse für die Unterschenkelauflage ihre Richtung im Raum beibehalten, wenn die Beinplatten voneinander weg bzw. aufeinander zu bewegt werden. Dadurch ist sichergestellt, daß die Unterschenkelauflage beim Anwinkeln der Beinplatte, d.h. beim Hochschwenken der Oberschenkelauflage und dem Abklappen der Unterschenkelauflage, diese nicht schräggestellt wird. Damit wird verhindert, daß der Unterschenkel seitlich von der Unterschenkelauflage abgleiten kann.The solution according to the invention has the advantage that both the folding axis for the thigh support and the folding axis for the lower leg rest maintain their direction in space when the leg plates are moved away from each other or towards each other. This ensures that the lower leg rest is bent when the leg plate is bent, i. when swinging the thigh support and folding down the lower leg support, this is not tilted. This prevents the lower leg from sliding sideways from the lower leg rest.
Bei einer bevorzugten Ausführungsform ist die Oberschenkelauflage nicht einstückig ausgebildet sondern umfaßt ein Bindeglied und eine mit diesem lösbar verbindbare Oberschenkelplatte, wobei an dem Bindeglied die Lenker angelenkt sind und das Klappgelenk für die Unterschenkelplatte ausgebildet ist. Auch die Unterschenkelauflage umfaßt vorzugsweise einen Unterschenkelholm und eine lösbar mit diesem verbindbare Unterschenkelplatte. Das Bindeglied mit den Lenkern des Parallelogrammgelenkes und der Unterschenkelholm bilden somit eine Trägerstruktur der Beinplatte für die Oberschenkeiplatte und die Unterschenkelplatte, die bei Bedarf ausgewechselt werden können.In a preferred embodiment, the thigh support is not formed in one piece but comprises a link and a releasably connectable with this Thigh plate, wherein the links are hinged to the link and the folding joint is designed for the lower leg plate. The lower leg rest also preferably includes a lower leg spar and a lower leg plate that can be detachably connected thereto. The link with the links of the parallelogram joint and the lower leg spar thus form a support structure of the leg plate for the thigh plate and the lower leg plate, which can be replaced if necessary.
Um den Raum zwischen den Beinplatten weiter öffnen zu können, ist es zweckmäßig, wenn der Unterschenkelholm über ein Spreizgelenk mit einem Gelenkarm verbunden ist, der mit dem Bindeglied über das Klappgelenk für die Unterschenkelauflage verbunden ist, wobei die Achse des Spreizgelenkes senkrecht zur Achse des Klappgelenkes und senkrecht zur Ebene der Unterschenkelplatte gerichtet ist. Die Reihenfolge der Gelenkanordnung - von dem Basiselement zur Unterschenkelauf läge hin betrachtet - in Verbindung mit der Parallelführung der Oberschenkelauflage stellt sicher, daß die Unterschenkelplatte auch bei geschwenkter und ausgespreizter Oberschenkelplatte immer um eine waagerechte Klappachse schwenkt und somit ein Abkippen der Unterschenkelplatte um eine Längsachse ausgeschlossen ist.To further open the space between the leg plates, it is useful if the lower leg is connected via a spreader with an articulated arm, which is connected to the link via the folding joint for the lower leg support, wherein the axis of the Spreizgelenkes perpendicular to the axis of the folding joint and directed perpendicular to the plane of the lower leg plate. The order of the joint assembly - considered from the base element for Unterschenkelauf down - in conjunction with the parallel guide the thigh support ensures that the lower leg plate always pivots even with pivoted and spread thigh plate about a horizontal folding axis and thus tilting of the lower leg plate is excluded about a longitudinal axis ,
Vorzugsweise ist das Anschlußstück in eine operationstischfeste Aufnahme einsteckbar, die Teil des Klappgelenkes für die Oberschenkelauflage ist. Damit kann die Beinplatte schnell und einfach mit dem Basiselement verbunden oder von diesem gelöst werden und gegebenenfalls durch eine andere Beinplatte ersetzt werden.Preferably, the connector is insertable into an operating table fixed receptacle, which is part of the folding joint for the thigh support. Thus, the leg plate can be quickly and easily connected to the base element or released from this and optionally replaced by another leg plate.
Die folgende Beschreibung erläutert in Verbindung mit den beigefügten Zeichnungen die Erfindung anhand eines Ausführungsbeispiels. Es zeigen:The following description, in conjunction with the accompanying drawings, illustrates the invention with reference to an embodiment. Show it:
Figur 1 eine perspektivische Ansicht schräg von oben auf eine mit einemFigure 1 is a perspective view obliquely from above on one with a
Basiselement einer Operationstischplatte verbundeneBase element of an operating table top connected
Beinplattenanordnung mit den Beinplatten in geschlossener Stellung, Figur 2 eine Draufsicht auf die Anordnung gemäß Figur 1 mit den Beinplatten in gespreizter Stellung,Leg plate arrangement with the leg plates in the closed position, FIG. 2 shows a plan view of the arrangement according to FIG. 1 with the leg plates in the spread position,
Figur 3 eine Ansicht der Beinplattenanordnung vom Fußende aus mit angewinkelten Beinplatten,FIG. 3 shows a view of the leg plate arrangement from the foot end with bent leg plates,
Figur 4 eine perspektivische Ansicht der in Figur 1 dargestellten Anordnung mit einer vollständig nach unten geschwenkten Beinplatte und einer nach unten geklappten Unterschenkelauflage,FIG. 4 is a perspective view of the arrangement shown in FIG. 1 with a leg plate pivoted completely downwards and a lower leg rest folded down;
Figur 5 eine perspektivische Darstellung der Trägerstruktur einer Beinplatte,5 is a perspective view of the support structure of a leg plate,
Figur 6 eine Seitenansicht der in Figur 5 dargestellten Struktur in Richtung desFigure 6 is a side view of the structure shown in Figure 5 in the direction of
Pfeiles A in Figur 5 mit montierten Platten undArrows A in Figure 5 with mounted plates and
Figur 7 einen Schnitt durch die Trägerstruktur entlang der Linie Vll-Vll in Figur7 shows a section through the support structure along the line VII-VII in FIG
5.5th
In Figur 1 ist ein Teil einer Patientenlagerfläche oder Operationstischplatte dargestellt mit einem Basiselement 10, das üblicherweise mit dem Säulenkopf der Tragsäule eines Operationstisches verbunden oder mit diesem verbindbar ist. Mit dem Basiselement 10 ist eine Beinplattenanordnung 12 verbunden, die zwei Beinplatten 14 umfaßt. Jede Beinplatte 14 hat eine Oberschenkelauflage 16 und eine Unterschenkelauf läge 18. Die Oberschenkelauflagen 16 sind über Gelenke mit dem Basiselement 10 und die Unterschenkelauflagen 18 sind über Gelenke mit der jeweiligen Oberschenkelauflage 16 verbunden, so daß die Oberschenkelauflagen 16 und die Unterschenkelbauflagen 18 in unterschiedliche Stellungen verstellt werden können. Figur 1 zeigt die Beinplatten 12 und deren Teile 16, 18 in einer Grundstellung, in der die Beinplatten 12 parallel zur Längsmittelachse 20 der Operationstischplatte gerichtet sind und dicht beieinander liegen. Figur 2 zeigt die Anordnung gemäß Figur 1 in einer Spreizstellung, in der die Oberschenkelauflagen 16 in Richtung der Pfeile B parallel zu sich selbst nach außen verschoben sind, während die Unterschenkelauflagen 18 an den jeweiligen Oberschenkelauflagen 16 um eine zur Bildebene senkrechte Spreizachse in Richtung der Pfeile C nach außen verschwenkt sind.FIG. 1 shows part of a patient support surface or operating table top with a base element 10, which is usually connected to or connectable to the column head of the support column of an operating table. To the base member 10 is connected a leg plate assembly 12 comprising two leg plates 14. Each leg plate 14 has a thigh support 16 and a lower leg support 18. The thigh supports 16 are connected by joints to the base member 10 and the lower leg supports 18 are connected by joints to the respective thigh support 16 so that the thigh supports 16 and lower leg support layers 18 are adjusted to different positions can be. Figure 1 shows the leg plates 12 and their parts 16, 18 in a basic position in which the leg plates 12 are directed parallel to the longitudinal central axis 20 of the operating table top and are close to each other. FIG. 2 shows the arrangement according to FIG. 1 in an expanded position, in which the thigh supports 16 are displaced outwards in the direction of the arrows B parallel to themselves, while the lower leg supports 18 on the respective thigh supports 16 are pivoted outward about an axis of expansion perpendicular to the image plane in the direction of the arrows C.
Figur 3 zeigt eine Stellung, in welcher die Oberschenkelauflagen 16 beider Beinplatten 14 um eine horizontale Klappachse 22 senkrecht nach oben geklappt sind, wobei die in der Figur 3 linke Oberschenkelauflage 16 gleichzeitig in Richtung des Pfeiles B nach außen verschoben ist. Die Unterschenkelauflagen 18 beider Beinplatten 14 sind jeweils um eine horizontale Klappachse gegenüber der jeweiligen Oberschenkelauflage 16 in die horizontale Lage geklappt, wobei die in der Figur 3 linke Unterschenkelauflage 18 zusätzlich um ihre Spreizachse nach außen geschwenkt ist.FIG. 3 shows a position in which the thigh supports 16 of both leg plates 14 are folded vertically upwards about a horizontal folding axis 22, the thigh support 16 left in FIG. 3 being displaced outwards in the direction of the arrow B at the same time. The lower leg supports 18 of both leg plates 14 are each folded around a horizontal folding axis relative to the respective thigh support 16 in the horizontal position, wherein the left lower leg support 18 in FIG. 3 is additionally pivoted outwards about its expansion axis.
Figur 4 schließlich zeigt eine Stellung, bei welcher die in der Figur 4 linke Beinplatte vollständig um die horizontale Klappachse 22 nach unten geschwenkt ist, während an der rechten Beinplatte 14 lediglich die Unterschenkelauflage 18 senkrecht nach unten abgeklappt ist.Finally, FIG. 4 shows a position in which the left leg plate in FIG. 4 is pivoted completely downwards about the horizontal folding axis 22, whereas on the right leg plate 14 only the lower leg rest 18 is folded down vertically.
Der Aufbau der Trägerstruktur der jeweiligen Beinplatte mit ihren Gelenken, welche die vorstehend dargestellten Bewegungen der Oberschenkelauflage und Unterschenkelauf läge ermöglichen, soll nun anhand der Figuren 5 bis 7 erläutert werden.The structure of the support structure of the respective leg plate with their joints, which allow the movements of the thigh support and Unterschenkelauf described above, will now be explained with reference to FIGS 5 to 7.
In Figur 5 erkennt man ein allgemein mit 24 bezeichnetes Anschlußstück mit einer Gelenkgabel 26 und einem mit dieser starr verbundenen Zapfen 28. Mit diesem Zapfen kann das Anschlußstück 24 in eine Aufnahme 30 gesteckt werden, die um die horizontale Klappachse 22 an dem Basiselement 10 schwenkbar angelenkt ist. Die Aufnahme 30 kann durch einen nicht näher dargestellten, weil an sich bekannten Spannmechanismus 32 in einer gewünschten Schwenkstellung um die Achse 22 festgespannt werden. Das Anschlußstück 24 kann in der Aufnahme 30 in nicht dargestellter Weise verankert werden. Das Klappgelenk mit der Klappachse 22 könnte auch in das Anschlußstück 24 integriert sein. In der Gelenkgabel 26 des Anschlußstückes 24 ist ein erster Lenker 34 um eine Schwenkachse 36 schwenkbar gelagert und kann mit Hilfe eines an sich bekannten Exzenterspannmechanismus 37 mit einem Spannhebel 38 und Zahnscheiben 40 in einer gewünschten Schwenkstellung um die Achse 36 fixiert werden. Der Lenker 34 ist an seinem anderen Ende mit einem Bindeglied 42 um eine Gelenkachse 44 schwenkbar verbunden. Das Bindeglied 42 ist plattenförmig und dient zur Halterung einer Oberschenkelplatte 46, die mit das Bindeglied 42 in Bohrungen 48 durchsetzenden nicht dargestellten Schrauben an dem Bindeglied 42 befestigt werden kann. Das Bindeglied 42 und die Oberschenkelplatte 46 bilden zusammen die Oberschenkelauflage 16. Die Gelenkgabel 26 und das Bindeglied 42 sind ferner über einen zweiten Lenker 50 miteinander verbunden, der mit seinem einen Ende an der Gelenkgabel 26 um eine Achse 52 schwenkbar angelenkt ist und mit seinem anderen Ende an dem Bindeglied 42 um eine Achse 54 schwenkbar angelenkt ist. Die beiden Lenker 34 und 50 bilden mit ihren Gelenkachsen 36, 52 und 44, 54 ein Parallelogrammgelenk, durch das das Bindeglied 42 und mit ihm die Oberschenkelplatte 46 parallel zu sich selbst verstellt werden kann, ohne daß sich seine Ausrichtung im Raum ändert.In Figure 5 can be seen a generally designated 24 fitting with a yoke 26 and a rigidly connected to this pin 28. With this pin, the connector 24 can be inserted into a receptacle 30 which hinged about the horizontal folding axis 22 to the base member 10 pivotally is. The receptacle 30 can be tightened by a non-illustrated, because known clamping mechanism 32 in a desired pivotal position about the axis 22. The fitting 24 can be anchored in the receptacle 30 in a manner not shown. The hinged joint with the folding axis 22 could also be integrated into the connecting piece 24. In the yoke 26 of the connector 24, a first link 34 is pivotally mounted about a pivot axis 36 and can be fixed by means of a known eccentric clamping mechanism 37 with a clamping lever 38 and toothed discs 40 in a desired pivotal position about the axis 36. The link 34 is pivotally connected at its other end with a link 42 about a hinge axis 44. The link 42 is plate-shaped and serves to hold a thigh plate 46 which can be fastened to the link 42 by means of screws 42 passing through the link 42 in holes 48 passing through them. The link 42 and the thigh plate 46 together form the thigh pad 16. The yoke 26 and the link 42 are further connected to each other via a second link 50 which is pivotally connected at one end to the yoke 26 about an axis 52 and with its other End is hinged to the link 42 about an axis 54 pivotally. The two links 34 and 50 form with their joint axes 36, 52 and 44, 54 a parallelogram joint, through which the link 42 and with him the thigh plate 46 can be adjusted parallel to itself, without changing its orientation in space.
An dem dem Anschlussstück 24 fernen Ende des Bindegliedes 42 ist ein Gelenkarm 56 in einem Klappgelenk 58 um eine horizontale Klappachse 60 schwenkbar gelagert. Der Gelenkarm 56 kann mit Hilfe eines Exzenterspannmechanismus 61 , der über einen Spannhebel 62 bedient werden kann, in einer beliebigen Klappstellung fixiert werden. Der Exzenterspannmechanismus 61 ist in ähnlicher Weise aufgebaut wie der zum Feststellen des ersten Lenkers 34 bestimmte Spannmechanismus 37 .At the end of the connecting link 42 remote from the connecting piece 24, an articulated arm 56 is pivotally mounted in a hinged joint 58 about a horizontal folding axis 60. The articulated arm 56 can be fixed in any folding position by means of an eccentric tensioning mechanism 61, which can be operated via a tensioning lever 62. The eccentric clamping mechanism 61 is constructed in a similar manner as the clamping mechanism 37 intended for fixing the first link 34.
Der Gelenkarm 56 hat eine Gelenkgabel 64, die ein Spreizgelenk 66 für einen Unterschenkelholm 68 bildet. Der Unterschenkelholm 68 dient zur Halterung einer Unterschenkelplatte 70. Die Spreizachse 72 des Spreizgelenkes 66 ist senkrecht zur Klappachse 60 und zur Ebene der Unterschenkelplatte 70 gerichtet. Das Spreizgelenk 66 kann mittels eines Exzenterspannmechanismus 74 gespannt werden, der wie die vorher genannten Spannmechanismen einen Spannhebel 76 und Zahnscheiben 78 umfaßt.The articulated arm 56 has a yoke 64, which forms an expansion joint 66 for a lower leg spar 68. The lower leg spar 68 serves to hold a lower leg plate 70. The spreading axis 72 of the expansion joint 66 is directed perpendicular to the folding axis 60 and to the level of the lower leg plate 70. The expansion joint 66 can be tensioned by means of an eccentric tensioning mechanism 74 be like the previously mentioned tensioning mechanisms comprises a clamping lever 76 and pulleys 78.
Die in den Figuren 5 bis 7 dargestellte Trägerstruktur wird durch die Oberschenkelplatte 46 und die Unterschenkelplatte 70 vervollständigt, wie dies in Figur 6 angedeutet ist.The support structure shown in Figures 5 to 7 is completed by the thigh plate 46 and the lower leg plate 70, as indicated in Figure 6.
Die jeweilige Oberschenkelauflage 16 oder die Beinplatte 14 als Ganzes kann gegenüber dem Basiselement 10 zunächst um die Klappachse 22 nach oben und unten verschwenkt werden. Ferner kann die Oberschenkelauflage 16 bzw. die Beinplatte 14 als Ganzes mit Hilfe des Parallelogrammgelenkes 34, 40, 36, 52, 44, 54 seitlich gegenüber dem Basiselement 10 versetzt werden, wie dies in der Figur 2 dargestellt ist. Die Unterschenkelauflage 18 kann gegenüber der Oberschenkelauflage 16 einerseits um die horizontale Klappachse 60 geschwenkt (Figuren 3 und 4) und andererseits um die Spreizachse 72 gedreht werden (Figur 2). Aufgrund der Tatsache, daß die Oberschenkelauflage 18 mit Hilfe des Parallelogrammgelenkes verstellt wird, bleiben die beiden Klappachsen 22 und 60 stets parallel und horizontal. Dies hat zur Folge, daß die Unterschenkelauf läge in allen ihren möglichen Stellungen bezüglich ihrer Längsmittelachse stabil bleibt, d.h. nicht seitlich gekippt wird. Damit wird vermieden, daß das Bein eines Patienten von der Unterschenkelauflage abrutschen kann, was zur Folge hätte, daß es zusätzlich fixiert werden müßte. Aus einem Vergleich der Figuren 1 und 2 erkennt man ferner sofort, daß durch ein Ausschwenken der Beinplatten um eine an der Verbindungsstelle zwischen Basiselement 10 und Oberschenkelauflage 16 liegende vertikale Spreizachse nur ein vergleichsweise geringer Freiraum zwischen den beiden Beinplatten geschaffen werden kann, während die seitliche Verschiebung der Beinplatten mit Hilfe des jeweiligen Parallelogrammgelenkes einen großen Freiraum schafft. The respective thigh support 16 or the leg plate 14 as a whole can be pivoted relative to the base member 10 first about the pivot axis 22 up and down. Furthermore, the thigh support 16 or the leg plate 14 as a whole can be displaced laterally relative to the base element 10 with the aid of the parallelogram joint 34, 40, 36, 52, 44, 54, as shown in FIG. The lower leg support 18 can be pivoted relative to the thigh support 16 on the one hand around the horizontal folding axis 60 (FIGS. 3 and 4) and on the other hand can be rotated about the expansion axis 72 (FIG. 2). Due to the fact that the thigh support 18 is adjusted by means of the parallelogram joint, the two folding axes 22 and 60 always remain parallel and horizontal. This has the consequence that the lower leg rest remains stable in all its possible positions with respect to its longitudinal central axis, i. not tilted sideways. This avoids that the leg of a patient can slip off of the lower leg rest, with the result that it would have to be additionally fixed. From a comparison of Figures 1 and 2 can also be seen immediately that by pivoting the leg plates about a lying at the junction between the base member 10 and thigh support 16 vertical expansion axis only a comparatively small clearance between the two leg panels can be created while the lateral displacement the leg plates with the help of the respective parallelogram joint creates a large space.

Claims

Ansprüche Expectations
1. Beinplattenanordnung für OP-Tische mit zwei Beinplatten (14), die mit einem Basiselement (10) einer OP-Tischplatte derart verbunden sind, daß sie zwischen einer Grundstellung, in der sie parallel zur Längsmittelachse (20) der OP-Tischplatte dicht beieinander liegen, und einer Spreizstellung verstellbar sind, in der sie einen Abstand von der Längsmittelachse (20) haben, dadurch gekennzeichnet, daß die jeweilige Beinplatte (14) mit dem Basiselement (10) über ein Parallelogrammgelenk verbunden ist, dessen Gelenkachsen (36, 52, 44, 54) senkrecht zur Ebene des Basiselementes (10) gerichtet sind.1. leg plate arrangement for operating tables with two leg plates (14) which are connected to a base element (10) of an operating table top in such a way that they are close to each other between a basic position in which they are parallel to the longitudinal central axis (20) of the operating table top lie and can be adjusted to a spread position in which they are at a distance from the longitudinal central axis (20), characterized in that the respective leg plate (14) is connected to the base element (10) via a parallelogram joint whose joint axes (36, 52, 44, 54) are directed perpendicular to the plane of the base element (10).
2. Beinplattenanordnung nach Anspruch 1, dadurch gekennzeichnet, daß jede Beinplatte (14) eine Oberschenkelauflage (16) und eine Unterschenkelauf läge (18) umfaßt, die jeweils in einem Klappgelenk um eine horizontale Achse (22; 60) relativ zum Basiselement (10) bzw. relativ zueinander verschwenkbar sind, daß die jeweilige Oberschenkelauflage (16) über zwei das Parallelogrammgelenk bildende Lenker (34, 50) mit einem Anschlußstück (24) verbunden ist, an dem erste Enden der Lenker (34, 50) angelenkt sind und das mit dem Basiselement (10) um die Klappachse (22) für die Oberschenkelauflage (16) schwenkbar verbindbar ist, und daß die zweiten Enden der Lenker (34, 50) an der Oberschenkelauflage (16) angelenkt sind, an der das Klappgelenk (58) für die Unterschenkelauflage (18) ausgebildet ist.2. Leg plate arrangement according to claim 1, characterized in that each leg plate (14) comprises a thigh support (16) and a lower leg support (18), each in a folding joint about a horizontal axis (22; 60) relative to the base element (10) or are pivotable relative to each other that the respective thigh support (16) is connected to a connecting piece (24) via two links (34, 50) forming the parallelogram joint, to which first ends of the links (34, 50) are articulated and with the base element (10) about the folding axis (22) for the thigh support (16) is pivotally connectable, and that the second ends of the links (34, 50) are articulated on the thigh support (16) on which the folding joint (58) for the lower leg support (18) is formed.
3. Beinplattenanordnung nach Anspruch 2, dadurch gekennzeichnet, daß die Oberschenkelauflage (16) ein Bindeglied (42) und eine mit dieser lösbar verbindbare Oberschenkelplatte (46) umfaßt, wobei an dem Bindeglied (42) die Lenker (34, 50) angelenkt sind und das Klappgelenk (58) für die Unterschenkelauflage (18) ausgebildet ist.3. leg plate arrangement according to claim 2, characterized in that the thigh support (16) comprises a link (42) and a releasably connectable thigh plate (46), wherein the link (42), the links (34, 50) are articulated and the folding joint (58) is designed for the lower leg support (18).
4. Beinplattenanordnung nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die Unterschenkelauflage (18) einen Unterschenkelholm (68) und eine lösbar mit dieser verbindbare Unterschenkelplatte (70) umfaßt. 4. Leg plate arrangement according to claim 2 or 3, characterized in that the lower leg support (18) comprises a lower leg spar (68) and a releasably connectable lower leg plate (70).
Beinplattenanordnung nach den Ansprüchen 3 und 4, dadurch gekennzeichnet, daß der Unterschenkelholm (68) über ein Spreizgelenk (66) mit einem Gelenkarm (56) verbunden ist, der mit dem Bindeglied (42) über das Klappgelenk (58) für die Unterschenkelauflage (18) verbunden ist, wobei die Achse (72) des Spreizgelenkes (66) senkrecht zur Achse des Klappgelenkes (60) und senkrecht zur Ebene der Unterschenkelplatte (70) gerichtet ist. Leg plate arrangement according to claims 3 and 4, characterized in that the lower leg spar (68) is connected via an expansion joint (66) to an articulated arm (56) which is connected to the link (42) via the folding joint (58) for the lower leg support (18 ) is connected, the axis (72) of the expansion joint (66) being directed perpendicular to the axis of the folding joint (60) and perpendicular to the plane of the lower leg plate (70).
6. Beinplattenanordnung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Anschlußstück (24) in eine operationstischfeste Aufnahme (30) einsteckbar ist, die Teil des Klappgelenkes für die Oberschenkelauflage (16) ist. 6. leg plate arrangement according to one of claims 1 to 5, characterized in that the connecting piece (24) in an operating table-fixed receptacle (30) can be inserted, which is part of the folding joint for the thigh support (16).
EP03811345A 2002-11-19 2003-09-30 Leg support arrangement for operating tables Expired - Lifetime EP1565143B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10253906A DE10253906A1 (en) 2002-11-19 2002-11-19 Leg plate arrangement for operating tables
DE10253906 2002-11-19
PCT/EP2003/010844 WO2004045482A1 (en) 2002-11-19 2003-09-30 Leg support arrangement for operating tables

Publications (2)

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EP1565143A1 true EP1565143A1 (en) 2005-08-24
EP1565143B1 EP1565143B1 (en) 2006-04-26

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EP03811345A Expired - Lifetime EP1565143B1 (en) 2002-11-19 2003-09-30 Leg support arrangement for operating tables

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US (1) US7454806B2 (en)
EP (1) EP1565143B1 (en)
JP (1) JP4383351B2 (en)
AT (1) ATE324095T1 (en)
DE (2) DE10253906A1 (en)
ES (1) ES2263069T3 (en)
WO (1) WO2004045482A1 (en)

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Publication number Publication date
ES2263069T3 (en) 2006-12-01
EP1565143B1 (en) 2006-04-26
DE50303139D1 (en) 2006-06-01
US7454806B2 (en) 2008-11-25
JP2006507048A (en) 2006-03-02
ATE324095T1 (en) 2006-05-15
US20060042011A1 (en) 2006-03-02
DE10253906A1 (en) 2004-06-03
JP4383351B2 (en) 2009-12-16
WO2004045482A1 (en) 2004-06-03

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