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

Definitions

• the present invention relates to a patient lifting table, in particular in the form of a treatment couch or an operating table, comprising a lifting structure which can be raised and lowered by means of a lifting structure, wherein the lifting structure comprises a telescopic lifting column with a two mutually parallel spaced apart, a cylindrical surface - having guide columns having fixed columnar structure, a relative to this linearly displaceable movable column structure and one between the
• Patient elevators are known in various designs and in use. Depending on their specific purpose and the rules applicable in the country concerned for each application
• Such patient lifting tables meet different requirements, not only in particular with regard to the lifting force provided, but also, for example, with regard to different bending moments, that of the telescopic lifting column without
• Impairment of their reliability can be included.
• CONFIRMATION COPY disclosed.
• two cylindrical guide columns are fixedly connected to a base plate and extend from this parallel to each other upright, wherein the upper ends of the guide columns are connected to each other by means of a bar-shaped traverse.
• the movable column structure comprises a column jacket, with the inside of the guide columns enclosing stiffening tubes are rigidly connected. In the stiffening tubes the respective circumference of the associated guide column comprehensive, ie encompassing bush-like guide elements are added.
• the present invention has set itself the task of providing a patient Hubliege of the generic type, which in spite of comparatively low production costs in various countries
• the invention is thus characterized in particular by the fact that the fixed pillar structure has a spacer element extending substantially over its entire height between the guide pillars.
• a continuous spacer element keeps the two guide columns over the entire axial extent at the predetermined distance, so that the risk that the guide columns deform at high loads, is extremely limited.
• This makes it possible, since the two guide columns are stiffened throughout the said continuous spacer element to each other, the use of comparatively slender - possibly even tubular, i. hollow - guide columns, which allows an equally compact and cost-effective design, in particular the use of standardized parts (for example piston rods) as a starting point for the guide columns is able to contribute significantly to the cost reduction.
• the spacer element is laterally grooved, so that the guide columns are received in the throat of the spacer element.
• This favors again Substantially the above-explained stiffening of the two guide columns by the spacer element in the sense of providing a highly rigid fixed column structure with the least possible effort, ie at low cost.
• the invention is characterized in that the sliding shells essentially have a shark shell shape. According to a corresponding arrangement of the sliding blocks, the sliding shells engage on both sides laterally on the unit consisting of the two guide columns and the at least one spacing element arranged therebetween.
• each slide block is equipped with two axially spaced sliding shells. This favors one
• the sliding shells in the sliding blocks are secured in the axial direction of the guide columns by embedding in recessed receptacles of the sliding blocks, in which respect axial securing in both directions takes place in particular through corresponding two-sided steps or shoulders in the sliding blocks ,
• the sliding shells in case of need - with removable movable column structure - easily replaceable.
• a si- insurance against twisting of the shell-shaped sliding shells in the associated, corresponding receptacles of the sliding blocks is, if it is necessary, possible by simple measures, for example by the overlapping head of a locking pin.
• a fixing of the sliding shells in the sliding blocks by a - if necessary. combined - rivet and / or an adhesive connection.
• the spacer element of the fixed pillar structure can be carried out in certain applications with particular advantage in the form of a solid spacer plate, in which case a fixation of the guide columns on the spacer plate can be done in particular by pinning.
• a fixation of the guide columns on the spacer plate can be done in particular by pinning.
• the spacer element of the fixed column structure in the sense of another preferred embodiment of the present invention, designed as chambered and / or with inner stiffening rib extruded profile, for example made of aluminum.
• Such a spacer element designed as an extruded profile can be optimized in terms of its inherent elasticity in the sense described above and matched to the requirements such that the moveable column structure can be adjusted under a defined clearance
• the design of the spacer element as an extruded profile makes it possible in a simple manner for it to have a cavity arranged between the guide columns, in which at least one linear actuator (for example hydraulic cylinder) assigned to the lifting drive is arranged.
• the lifting drive can act in this way in the plane defined by the two guide columns, which is favorable for static reasons. Also in static terms is favorable when the extruded profile has a substantially closed peripheral surface.
• the lateral grooves already mentioned above, in which the guide columns are accommodated, have support ribs against which the guide columns abut locally, ie typically along a linear contact surface.
• Such support ribs (or support webs) can be reworked with little effort, especially in the context of a tolerance compensation, which relates to the dimensions of the extruded profile and / or the guide columns.
• the guide columns on a circular cylindrical surface They are preferably massive
• Lifetime can be achieved in particular by the fact that the Gleitblöcken associated sliding shells made of non-ferrous metal with a polymer sliding coating, in particular bronze with a POM sliding coating.
• the spacer element is preferably mounted on a base plate, which in the case of the execution of the spacer element as a spacer plate latter preferably stiffened by means of support plates relative to the base plate.
• Such support plates are particularly preferably arranged only on one side of the spacer plate in the interest of a telescopic lifting column as compact as possible.
• the two guide columns are preferably fixed at their lower ends via a base plate to which they are connected, the two guide columns can be connected to one another in the region of their upper ends by means of a cross-piece, in which case the said traverse preferably engages in frontal recesses of the guide columns. Given the stiffening of the two guide columns relative to each other by extending over substantially its entire height
• Spacer element is not necessarily such an end-side additional connection of the two guide columns.
• the movable column structure comprises a clamp on which the two slide blocks are mounted. It is particularly advantageous if at least one of the two sliding blocks is adjustably attached to the bracket, in which case in particular two axially, ie in the longitudinal direction of the guide columns spaced from each other screw-locking arrangements can be provided. By means of such an adjustment possibility, the clearance can be adjusted, in particular to compensate for possible tolerances of the guide columns and / or the sliding shells. Such a design is particularly useful if the spacer element in the form of a solid spacer plate, which does not have a clearance compensating and / or tolerances balancing inherent elasticity, is executed.
• the sliding blocks can even form an integral part of other components of the movable column structure, for example, be integrally formed on a circumferentially substantially closed tubular structural element, which encloses and accommodates the fixed pillar structure.
• the substantially circumferentially closed tubular structural element can thereby be integrally formed on a circumferentially substantially closed tubular structural element, which encloses and accommodates the fixed pillar structure.
• the substantially circumferentially closed tubular structural element can thereby
• the aforementioned embodiment of the movable pillar structure such that it comprises a circumferentially substantially closed tubular structural element is not only favorable from a static point of view. This also favors the
• the tubular structural element preferably has an upper, preferably plate-shaped closure structure on which the lifting drive engages, wherein the upper closure structure particularly preferably has openings through which pass the upper ends of the guide columns in the fully lowered position of the movable column structure. In this way, the working stroke of the lifting structure can be optimized.
• Yet another preferred development of the invention is characterized in that a hydraulic lifting drive is provided, which
• the present invention can be used both in patient lifting tables with a lifting structure having a single-stage telescopic lifting column and in patient lifting beds whose lifting structure has a multi-stage telescopic lifting column. It should also be pointed out that the advantages set forth above and / or in the following description of an exemplary embodiment, which are associated with the lifting structure according to the invention, can in any case be achieved to a considerable extent if the fixed column structure instead of an assembly assembled from the two guide columns and the spacer element a functionally identical one-piece, for example, emerged from an extruded unit comprises.
• Such a one-piece unit would consist of two edge profile cylinder profile sections respectively assuming a guiding function, each having a surface in the form of a cylindrical section and an intermediate profile section arranged between the two edge profile sections, which essentially has a supporting and stiffening function.
• the present invention will be explained in more detail with reference to two exemplary embodiments illustrated in the drawing. Shown
• FIG. 1 shows the lifting structure of a first embodiment of a patent Hubliege invention in its maximum extended configuration in perspective view from a first side
• FIG. 2 shows the lifting structure shown in FIG. 1 in a perspective view from a second side
• FIG. 4 shows the transition region shown in FIG. 3 from another perspective in a sectional view; FIG. continue to show
• FIG. 5 shows the lifting structure of a second embodiment of a patent Hubliege invention in its maximum retracted configuration in a perspective view obliquely from above and
• Fig. 6 is a horizontal section through the lifting structure shown in Fig. 5, omitting the externally attached to the movable column structure components.
• the reproduced in the figures 1 to 4 of the drawing, for raising and lowering a (not dargestell- 1) in a first embodiment comprises a - in this case single-stage - telescopic lifting column with a lower fixed pillar structure 2 and a relative to this linearly displaceable upper movable pillar structure.
• the fixed column structure 2 comprises as main components a base plate 4, two vertically, parallel aligned guide columns 5, a spacer element 6 in the form of a arranged between the two guide columns 5 spacer plate 7 and a support structure 8.
• the two guide columns 5 are solid with a circular cylindrical, Hard chromed surface executed. They are bolted to the base plate 4 from below.
• the guide columns 5 are furthermore connected by means of a cross-member 10, which may possibly engage in corresponding end-side recesses of the guide columns 5 and is fixed to these by means of screws 12, connected together.
• the cross member 10 covers the spacer plate 7 from above.
• the support structure 8 comprises two upright support plates 13, which are bolted to both the base plate 4 and the spacer plate 7, wherein the two support plates 13 further for stiffening the support structure 8 via two
• Connectors 14 are connected together.
• the movable column structure 3 in turn comprises a torsionally rigid support 15, which is essentially composed of a back plate 16 and two side plates 17 bolted thereto. Between the two side plates 17 extend - at different heights - two traversal plates 18 screwed to them and furthermore, as upper end of the movable column structure 3, a top plate 47. Further, on each of the two side plates 17 in the region of the lower end portion of the movable Column structure attached to a support plate 19. These support plates 19 are on one side over the side plates 17 to form a the column structure 2 laterally encompassing bracket 20.
• a sliding block 22 is attached to each of the support plates 19.
• the slide blocks 22 each have a substantially semi-cylindrical recess 23 adapted to the contour of the guide columns 5.
• In the recesses 23 are, with axial distance from each other, respectively two shots 24 incorporated.
• In this half-shell-shaped sliding cups 25 are embedded, which consist of bronze with a PO sliding surface.
• the sliding cups 25 are secured against rotation in the associated receptacle 24 in the circumferential direction.
• the slide blocks 22 are attached to the respective associated support plate 19 adjustable.
• two screw-Konter-arrangements 27 are provided per sliding block.
• the lifting column also has a hydraulic lifting drive acting between the fixed column structure 2 and the movable column structure 3.
• This comprises a hydraulic unit 32 arranged on the movable column structure 3, a lifting valve accommodated in the valve arrangement 33 and a lifting cylinder.
• the cylinder 36 is fixed to the movable column structure 3, namely the head latte 47, the piston rod 37, however, on the fixed pillar structure 2, namely on the base plate 4.
• the structure of the movable pillar structure 3 having a back plate 16, two side plates 17, and a transverse plate 18 has the upper pillar structure formed with a cavity in which the hydraulic cylinder-piston unit 35 is received, so that the lift cylinder assembly 34 is supported by the movable pillar structure 3 is completely enclosed at least on a part of the axial height.
• FIGS. 1 and 2 also show the mounting frame 38 which, at the upper end of the telescopic lifting column, is cardanically articulated via an intermediate frame 46 and to which the lying structure of the patient lifting couch is to be mounted.
• the mounting frame 38 which, at the upper end of the telescopic lifting column, is cardanically articulated via an intermediate frame 46 and to which the lying structure of the patient lifting couch is to be mounted.
• the two swivel cylinder assemblies 39 and 40 are fed by the hydraulic unit 32, wherein also the the Swivel cylinder assemblies 39 and 40 associated with valves in the valve assembly 33 are housed.
• the spacer element 6 of the stationary column structure 2 is embodied here as an extruded profile 50 of a substantially rectangular basic shape and with a substantially closed outer peripheral surface formed by longitudinal side walls 51 and transverse side walls 52.
• the extruded profile 50 is equipped with inner stiffening ribs 53, resulting in a plurality of chambers 54, including a disposed between the guide columns 5 cavity 55.
• the hydraulic cylinder-piston unit 35 is received.
• the extruded profile 50 recesses 56 in which screws can be screwed, by means of which the extruded profile 50 is connected to the base plate 4.
• the receiving of the guide columns 5 serving throats 9 are executed in the transverse side walls 52 of the extruded profile 50.
• the grooves 9 have support ribs 57, on which the guide columns 5 localized, in this case, in particular, lie along narrow line-shaped contact surfaces.
• recesses 59 are provided in the upper region of the extruded profile 50 in one of the stiffening ribs 53 and one of the longitudinal side walls 51, into which said connection 58 enters when the movable column structure 3 is completely lowered.
• the movable pillar structure 3 comprises a circumferentially substantially closed tubular structural element 60, which also constitutes an extruded part and the fixed pillar structure 2 encloses and receives in itself.
• the sliding blocks 22, in the half-shell-shaped receptacles 24, the half-shell-shaped sliding shells 25 are accommodated here form an integral part of the movable column structure 3, by being integrally formed on the tubular structural element 60.
• the sliding cups 25 are fixed here in the sliding blocks 22 by a combined rivet and adhesive connection.
• the tubular structural element 60 has an upper end structure 61 in the form of a head plate 47, on which the lifting drive engages.
• the cylinder of the cylinder-piston unit 35 is connected to the head plate by means of the screw 62.
• the top plate 47 is in turn connected to the tubular structural element 60 by means of four screws 63, which in corresponding recesses 64 of the tubular
• Structural element 60 are screwed.
• the head plate 47 has openings 65, through which in the fully constantly lowered position of the movable column structure 3, the upper ends of the guide columns 5 pass through.
• Guide columns arranged cavity 55 of the extruded profile 50 does not receive a separate hydraulic cylinder-piston unit 35, but rather - circular cylindrical executed suitably closed (with piston rod passage) and provided with a hydraulic connection - directly forms the cylinder of a lifting cylinder assembly.
• the piston of the lifting cylinder arrangement would accordingly be guided sealingly in this development directly in the cavity 55 of the extruded profile 50.
• the present invention further developing feature that the spacer element has at least one cylindrical cavity in which a piston of the lifting drive you - tend, so that the spacer and the lifting drive form an integrated assembly.

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

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

ID=46319685

Family Applications (1)

Country Status (6)

Cited By (1)

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Citations (3)

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• 2011
  • 2011-06-08 DE DE102011103546A patent/DE102011103546A1/de not_active Withdrawn
• 2012
  • 2012-06-06 CN CN201280028031.7A patent/CN103596538B/zh not_active Expired - Fee Related
  • 2012-06-06 EP EP12728179.8A patent/EP2717826B1/de active Active
  • 2012-06-06 BR BR112013030654A patent/BR112013030654A2/pt not_active Application Discontinuation
  • 2012-06-06 PL PL12728179T patent/PL2717826T3/pl unknown
  • 2012-06-06 WO PCT/EP2012/002396 patent/WO2012167919A1/de active Application Filing

Patent Citations (3)

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