WO1997010750A1 - Table d'auscultation - Google Patents

Table d'auscultation Download PDF

Info

Publication number
WO1997010750A1
WO1997010750A1 PCT/IB1996/000923 IB9600923W WO9710750A1 WO 1997010750 A1 WO1997010750 A1 WO 1997010750A1 IB 9600923 W IB9600923 W IB 9600923W WO 9710750 A1 WO9710750 A1 WO 9710750A1
Authority
WO
WIPO (PCT)
Prior art keywords
table top
intermediate piece
stand
actuator
examination table
Prior art date
Application number
PCT/IB1996/000923
Other languages
English (en)
Inventor
Adrianus Van Der Ende
Original Assignee
Philips Electronics N.V.
Philips Norden Ab
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 Philips Electronics N.V., Philips Norden Ab filed Critical Philips Electronics N.V.
Publication of WO1997010750A1 publication Critical patent/WO1997010750A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/04—Positioning of patients; Tiltable beds or the like

Definitions

  • the invention relates to a patient examination table as disclosed in the introductory part of Claim 1.
  • An examination table of this kind is known from European Patent 0 490 107.
  • the cited Patent discloses an examination table whose stand is secured to the ceiling of the examination room, the remainder of the examination table being suspended therefrom.
  • the table top of the examination table described in the cited document can be adjusted relative to the stand in respect of height as well as direction.
  • the means for height adjustment of the known examination table are formed by an arm which vertically projects from the stand and which can be vertically slid in and out relative to the part of the stand which is secured to the ceiling and which is rigid in the vertical direction.
  • Said arm supports the table top and also supports an assembly of gearwheels and a drive motor which are accommodated in a gearbox, thus constituting the means for adjusting the direction of the table top.
  • the gearbox is secured between an end of the table top and the arm for height adjustment.
  • the arm for height adjustment is secured to an ingoing shaft of the gearbox and the table top is secured to an outgoing shaft of the gearbox.
  • the direction of the table top is adjusted by activation of the motor. Because of the location of the combination formed by the motor and the gearbox, the arm for height adjustment of the stand is loaded not only by the weight of the patient to be examined, but also by the weight of the combination formed by the motor and the gearbox, so that the supporting construction must be substantially heavier. Furthermore, the loading causes torsion in the shafts and the gearwheels of the adjusting means so that, in combination with the location at one end, major elastic deformation may occur in the assembly, leading to ambiguity as regards the position of the patient.
  • the patient table in accordance with the invention is characterized in that the means for adjusting the table top are constructed as disclosed in Claim 1.
  • a support for the table top may be constructed in the form of a U, one limb of which is retained, in the vicinity of its center, on the one side by a hinged joint which constitutes the connection with the intermediate piece and on the other side by the point of application of the second actuator.
  • the table top is then attached to the other limb of the U shape, offering ample freedom of movement to the attending staff.
  • the second linear actuator may be situated directly underneath the support, so that, neither in the horizontal nor in the vertical position this actuator requires space at the expense of the free floor surface.
  • the first actuator and the second actuator act on the same point of the intermediate piece. As a result, only one point of attachment is required on the intermediate piece for the two actuators.
  • At least one of the actuators comprises a transducer for converting the excursion of the actuator into a measured signal. If the table is adjusted by means of a motor drive, the height and the position of the table top can thus be allowed to reach a desired value, the adjusting process being controlled by the apparatus itself.
  • a further embodiment of the examination table in accordance with the invention comprises processor means for controlling the excursion of the actuator in dependence on the measured signal from the transducer.
  • processor means for controlling the excursion of the actuator in dependence on the measured signal from the transducer.
  • FIG. 1 is a perspective view of an examination table in accordance with the invention
  • Fig. 2 shows the principle of the construction for adjusting the examination table
  • Figs. 3a to 3d illustrate various positions of the table top of the examination table in accordance with the invention and also show the associated actuator settings.
  • Fig. 1 is a perspective view of a patient examination table in accordance with the invention which is arranged in an examination room.
  • the patient examination table consists of a table top 24 for supporting the patient to be examined, a support 6 for supporting the table top 24, and a stand 2 for carrying the support.
  • examination equipment such as a C-arm 26 with an X-ray source 28 and an X-ray detector 30.
  • a practical examination table should be adjustable in respect of height and be tiltable about an axis which is preferably situated in the plane of the C-arm.
  • An additional condition imposed on the motion of the table top is that it should not collide with the X-ray source or the X-ray detector during tilting and/or height adjustment, i.e.
  • the stand should occupy an as small as possible floor surface.
  • the adjustment of the examination table necessitates the use of a compact movement mechanism enabling the above motions.
  • Fig. 2 illustrates the principle of the movement mechanism for adjusting the examination table in accordance with the invention.
  • a stand 2 for supporting the further parts of the examination table is arranged on a floor 16 of an examination room. Even though the stand of the examination table is arranged on the floor in this Figure and further Figures, the stand may alternatively be mounted on the ceiling of the examination room. This is irrelevant to the principle of the invention.
  • An intermediate piece 4 is connected to the stand 2 via a hinged joint 20.
  • the hinge 20 enables rotary movement of the intermediate piece 4 in die plane of drawing relative to the stand 2.
  • the intermediate piece 4 is also connected to the stand 2 via a first linear actuator 8.
  • the actuator is connected to the stand 2 by way of a shaft 10 and to the intermediate piece 4 by way of a shaft 12a, said shafts extending perpendicularly to the plane of drawing.
  • the actuator drives the pivoting motion of the intermediate piece relative to the stand by extension or compression.
  • the actuator can be constructed in a variety of known ways, for example as a hydraulic system consisting of a cylinder accommodating a movable piston, or as a threaded spindle which runs in a stationary nut and is driven by an electric motor. These known constructions are not shown in detail in the Figures.
  • a support 6 is connected to the intermediate piece 4 via a hinged joint 22.
  • the hinge 22 enables rotary motion of the support 6 in the plane of drawing relative to the intermediate piece 4.
  • the support 6 is also connected to the intermediate piece 4 via a second linear actuator 14.
  • the actuator is connected to the intermediate piece 4 by way of a shaft 12b and to the support 6 by way of a shaft 18, both shafts extending perpendicularly to the plane of drawing.
  • the actuator drives the hinging motion of the support relative to the intermediate piece by extension or compression.
  • This actuator may be constructed in the same ways as the first actuator 8.
  • Fig. 2 shows the stand, the intermediate piece and the support as plane elements, these elements are of course constructed so as to be three dimensional in practice.
  • the stand 2 may be shaped as a box, the shafts 10 and 20 then projecting through the side walls and extending perpendicularly thereto.
  • the intermediate piece 4 is then shaped as two parallel plates which are situated within the box, directly adjacent its side walls, and are interconnected by way of an connection piece, for example in the form of a tubular part (not shown in Fig. 2) whose axis extends perpendicularly to the plates.
  • the shaft 20 then extends through both plates and through the adjacent side walls of the box.
  • the shaft 12a then extends only through the two plates.
  • the support (or the part of the U-shaped support situated at the area of the stand) has the shape of a U-profile when viewed in a vertical cross-section perpendicular to the plane of drawing; the limbs of said U- profile (the side walls of the profile) are situated outside the intermediate piece and the box- shaped stand.
  • the shaft 22 then extends through the two plates of the intermediate piece as well as through the two side walls of the profile.
  • the shaft 12b then extends only through the two plates of the intermediate piece, and the shaft 18 extends only through the two side walls of the profile.
  • the excursion of the actuators can be translated into an electric signal to enable processor control of the examination table.
  • this can be realized by coupling the spindle, via a reducer or not, to a rotary potentiometer (not shown) having, for example ten turns.
  • the number of rotations of the threaded spindle i.e. the excursion of the actuator is thus translated into a resistance value which can be readily measured electrically.
  • Figs. 3a to 3d show various positions of me table top of the examination table and the associated settings of the actuators.
  • the actuators are diagrammatically represented by a straight line.
  • Figs. 3a to 3d the fixed stand 2 arranged on the floor 16 is connected to the intermediate piece 4 via the hinge 20 and d e support 6 is connected to tiie intermediate piece 4 via the hinge 22.
  • the actuator 8 is connected to the stand 2 via the shaft 10 and to the intermediate piece 4 via the shaft 12.
  • the actuator 14 is connected to the intermediate piece 4 via the shaft 12 and to the support 6 via the shaft 18. In these Figures, therefore, the actuators 8 and 14 both act on the same point 12 of the intermediate piece 4.
  • Fig. 3a shows the horizontal orientation in the lowest position of the table top. With this orientation and position the actuator 8 is fully compressed as is the actuator 14.
  • Fig. 3b the table top has been rotated clock-wise to a completely vertical position. The actuator 8 is then fully extended and the actuator 14 fully compressed.
  • Fig. 3a shows the horizontal orientation in the lowest position of the table top. With this orientation and position the actuator 8 is fully compressed as is the actuator 14.
  • Fig. 3b the table top has been rotated clock-

Abstract

La présente invention concerne une table d'auscultation réglable en hauteur et inclinable. Pour que le construction ne subisse qu'à un minimum de déformation élastique et ne présente qu'un minimum d'encombrement au sol, la table est montée au moyen d'une pièce intermédiaire sur un pied rigidement fixé à l'environnement, la pièce intermédiaire s'articulant sur le pied et sur le plateau de table. Des moteurs linéaires montés respectivement entre pied et pièce intermédiaire et entre pièce intermédiaire et plateau animent la pièce intermédiaire et le plateau d'un mouvement d'articulation. L'actionnement individuel de ces moteurs linéaires permet d'obtenir une grande variété d'orientations et de positions du plateau, tout en ne prenant qu'un encombrement au sol restreint.
PCT/IB1996/000923 1995-09-22 1996-09-11 Table d'auscultation WO1997010750A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP95202560 1995-09-22
EP95202560.9 1995-09-22

Publications (1)

Publication Number Publication Date
WO1997010750A1 true WO1997010750A1 (fr) 1997-03-27

Family

ID=8220651

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1996/000923 WO1997010750A1 (fr) 1995-09-22 1996-09-11 Table d'auscultation

Country Status (1)

Country Link
WO (1) WO1997010750A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011015776A1 (fr) * 2009-08-07 2011-02-10 Stephanix Systeme de radiologie basculant et elevateur

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2193321A5 (fr) * 1972-07-19 1974-02-15 Wallach Oscar
US5345632A (en) * 1991-04-18 1994-09-13 General Electric Cgr S.A. Underframe for medical examination table
US5398356A (en) * 1993-06-28 1995-03-21 Pfleger; Frederick W. X-ray table

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2193321A5 (fr) * 1972-07-19 1974-02-15 Wallach Oscar
US5345632A (en) * 1991-04-18 1994-09-13 General Electric Cgr S.A. Underframe for medical examination table
US5398356A (en) * 1993-06-28 1995-03-21 Pfleger; Frederick W. X-ray table

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011015776A1 (fr) * 2009-08-07 2011-02-10 Stephanix Systeme de radiologie basculant et elevateur
FR2948866A1 (fr) * 2009-08-07 2011-02-11 Stephanix Systeme de radiologie basculant et elevateur

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