EP1943996B1 - Kippbarer Operationstisch - Google Patents

Kippbarer Operationstisch Download PDF

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Publication number
EP1943996B1
EP1943996B1 EP20070024343 EP07024343A EP1943996B1 EP 1943996 B1 EP1943996 B1 EP 1943996B1 EP 20070024343 EP20070024343 EP 20070024343 EP 07024343 A EP07024343 A EP 07024343A EP 1943996 B1 EP1943996 B1 EP 1943996B1
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EP
European Patent Office
Prior art keywords
tabletop
head
guide
surgical table
slide
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
EP20070024343
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English (en)
French (fr)
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EP1943996A2 (de
EP1943996A3 (de
Inventor
Aldo Cristofolini
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.)
OPT SurgiSystems Srl
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OPT SurgiSystems Srl
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Application filed by OPT SurgiSystems Srl filed Critical OPT SurgiSystems Srl
Publication of EP1943996A2 publication Critical patent/EP1943996A2/de
Publication of EP1943996A3 publication Critical patent/EP1943996A3/de
Application granted granted Critical
Publication of EP1943996B1 publication Critical patent/EP1943996B1/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
    • A61G13/04—Adjustable operating tables; Controls therefor tiltable around transverse or longitudinal axis

Definitions

  • the present invention generally finds application in the art of medical apparatus and particularly relates to a surgical table that is adjustable to adapt the position of a patient lying thereon to the required surgery procedure or diagnostic analysis.
  • Surgical tables for use in surgery or diagnostics are known to be essentially composed of a base column standing on the floor, and supporting a tabletop designed to receive a patient in lying, supine, sitting or even complex positions, depending on the specific type of examination.
  • the latter is driven for the patient to take the position that is most appropriate with respect to the particular type of surgery or analysis, and most comfortable for the surgeon or operator.
  • surgical tables shall be able to translate along one or more axes, i.e. for adjusting the height of the tabletop to the height of the surgeon, and to rotate about one or more axes for positioning the patient body, or a part thereof, possibly in oblique directions.
  • WO02/11618 discloses a surgical table comprising a horizontal tabletop mounted to a load-bearing column and adapted to slide in the direction of its length by means of a carriage movable along a pair of straight rails, one of which is associated with the tabletop and the other with the column.
  • DE10253878 discloses a surgical table that is removably mounted to a load-bearing column so that it can be rotated relative thereto to the desired position.
  • a greater tilt may particularly be needed when the patient has to be moved to the so-called “Trendelenburg position", which is useful during certain radiological imaging procedures, such as for diagnosis of reflux esophagitis or hiatal hernia, in which the patient is laid in a supine position on a tilted tabletop, with the head lower than the knees and pelvis, or to the reverse Trendelenburd position, with the head higher than the knees and pelvis, which is useful for procedures on obese patients.
  • Trendelenburg position which is useful during certain radiological imaging procedures, such as for diagnosis of reflux esophagitis or hiatal hernia, in which the patient is laid in a supine position on a tilted tabletop, with the head lower than the knees and pelvis, or to the reverse Trendelenburd position, with the head higher than the knees and pelvis, which is useful for procedures on obese patients.
  • Another critical aspect is the possibility of placing the tabletop at a minimum height from the floor to adapt the tabletop height to the height of the surgeon, for improved operating comfort.
  • US6070281 discloses an adjustable surgical table connected to a base via a movable C-arm which causes combined translation thereof in space in the longitudinal and vertical directions.
  • the table is articulated at one end of the arm for further rotation and, in combination with the motion of the C-arm, this provides large tilts of the tabletop, possibly reaching the totally vertical position.
  • US5790996 discloses a similar solution in which the movable C-arm is articulated to the base and the tabletop is slideably mounted thereto.
  • the object of the present invention as claimed is to overcome the above drawbacks, by providing an adjustable surgical table that is highly efficient and relatively cost-effective.
  • a particular object is to provide an adjustable surgical table that allows for large tabletop tilts relative to a median vertical plane, particularly when the patient has to be moved to the Trendelenburg or reverse Trendelenburg position.
  • a further object is to provide an adjustable surgical table that allows tabletop translation along its length to eliminate blind spots for X-ray diagnostic apparatus.
  • Yet another object is to provide a surgical table that can be placed at a minimum height from the floor for the patient position to be as comfortable as possible for the surgeon or operator, and adapted to different heights.
  • a further object is to provide an adjustable surgical table that affords high positioning flexibility as well as sturdy and reliable construction, to allow even arrangement of the loads supported by the surgical table.
  • Another important object is to provide a surgical table that can be adjusted in space in a relatively simple manner, while remaining comfortable for the patient, by perfectly synchronous movements of its parts.
  • This particular configuration of the invention allows for extreme tabletop positioning, with considerably greater tilts to the vertical as compared with usual values obtained using standard surgical tablets guided among straight guides.
  • the curved guide may include a pair of supports having a substantially cylindrical upwardly concave top surface, which are disposed symmetrically about the longitudinal plane of symmetry.
  • the slide may include a pair of arched elements whose bottom surface is complementary in shape to the top surface of the supports.
  • the surgical table of the invention may be used to adapt the position of a patient to a given surgical procedure or diagnostic examination.
  • the table 1 may be used in combination with suitable diagnostic apparatus, e.g. for X-ray imaging, not shown because they are known per se.
  • the surgical table as shown in FIG. 1 , comprises a floor-standing load-bearing column 2 having a substantially conical upper head 3 that defines a substantially vertical axis of symmetry W, a tabletop 4 mounted to the head 3, guide means 5 for guiding the tabletop 4 along a longitudinal plane of symmetry ⁇ passing through the vertical axis W.
  • the guide means 5 include a curved guide 6 associated with the column 2 when the tabletop 4 is mounted thereon, and a slide 7 movable on the guide 6.
  • First actuator means 8 are provided, which operate on the slide 7 to cause motion thereof along the curved guide 6.
  • the curved guide 6 is designed for attachment to the head 3 and the slide 7 is rigidly connected to the tabletop 4 and locked against rotation relative thereto.
  • the first actuator means 8 are in turn removably mounted to the head 3 to cause the slide 7 to move relative to the guide 6.
  • the guide 6 may be fixedly ore movably attached to the head 3 of the column 2.
  • the guide may include a pair of lateral supports 9, 9' each having a substantially cylindrical upwardly concave top surface 10, which are disposed symmetrically about the longitudinal plane of symmetry ⁇ .
  • the slide 7 may include a pair of arched elements 11, 11', each having a bottom surface 12, 12' complementary in shape to the top surface 10 of the corresponding support 9, 9', for causing rotation of the tabletop 4 at the same time as the arched elements 11, 11' slide within the lateral supports 9, 9' of the guide 6.
  • the first actuator means 8 may include one or more kinematic pairs 13 located at the ends of a first motorized drive shaft 14, having a first transverse axis X, which is rotatably mounted to the guide 6.
  • the shaft 14 may be rotated by a motor 16, which is coupled to the shaft through a gearmotor, not shown.
  • the kinematic pairs 13 may be each formed of a pair of gear wheels 17, 17' integral with the shaft 14, and located at its transverse ends, for meshing with corresponding curved racks 18, 18' formed on each of the top surfaces 15, 15' of the arched elements 11, 11'.
  • the kinematic pairs 13 may have other configurations, not shown, and may be each formed, for instance, of a pair of substantially smooth rolling surfaces respectively associated with the shaft 14 and the arched elements 11, 11', without departure from the scope of the present invention.
  • the surgical table 1 of the invention may have a modular construction, with the tabletop 4 being composed of a central module for supporting one part of the patient body, such as the pelvis, and end modules, not shown, articulated to the longitudinal ends, and designed to support the rest of the body, such as the torso and the legs.
  • each of the end modules relative to the central module may be independently adjusted to cause the tabletop 4, and hence the patient body, to assume the most appropriate configuration for any type of surgery or examination.
  • the slide 7 is rigidly connected to the central module, which corresponds to the whole tabletop 4 in the figures, and its arched elements 11, 11' have substantially the same longitudinal extension l as the latter.
  • the guide 6 may be coupled, preferably in a one-piece construction, to a pair of downwardly-directed interface elements 19, 19', which are located at each arched element 11, 11', symmetrically about the longitudinal plane ⁇ .
  • Each interface element 19, 19' has a specially shaped concave surface 20, 20' which is designed to be removably engaged by a corresponding lateral projection 21, 21', complementary in shape to the head 3, so that the guide 6 can be integrally joined to the lateral projections 21, 21' of the head 3, and the central module of the tabletop 4 is allowed to fit the motion of the latter.
  • the lateral projections 21, 21' may be hinged to the column 2 and the head 3 about a second transverse axis X' substantially parallel to the first axis X.
  • the particular connection between the guide 6 and the column 2 allows for easy removal of the assembly composed of the guide 6, the slide 7 and the tabletop 4 from the column 2, thereby allowing the tabletop 4 to be transported from one department to the other, e.g. on carriages, not shown because of commonly known fabrication.
  • the guide means 5 may be removably associated with the column 2 while being integral with the tabletop 4, thereby allowing the use of standard columns 2 adapted for connection to tabletops of different construction.
  • second actuator means 22 may be provided, which are kinematically connected to the head 3 for adjusting the tilt of the tabletop 4 relative to a longitudinal axis Y substantially perpendicular to the vertical axis W, with the tabletop 4 in the horizontal position.
  • Third actuator means may be also provided, which are not visible because they are located in the head 3, for causing translation of the head 3 in a substantially vertical direction defined by the vertical axis W, to cause height adjustment of the tabletop 4.
  • the second 22 and third actuator means may be as disclosed in patent EP1032350 , by the applicant hereof.
  • the second actuator means 22 may include a pair of substantially vertical telescopic jacks 24, 24', arranged symmetrically about the longitudinal plane ⁇ , as shown in FIG. 4 .
  • the tilt of the head 3 and hence of the tabletop 4 may be adjusted relative to the longitudinal plane of symmetry ⁇ .
  • Controlled and coordinated motion of the first 8, second 22 and third actuator means, for driving the table 1 and positioning the tabletop 4 into the various operating modes may be obtained using special control means, not shown, which include a microprocessor unit, with an appropriate computer program installed therein for actuator motion interpolation.
  • the tabletop 4 may be caused to translate in both longitudinal and vertical directions, while maintaining the horizontal position of the central module 4 and without ever inclining the patient.
  • FIG. 5 This operating condition is shown in FIG. 5 , in which the tabletop 4 is shown at three different heights from the floor, i.e. h 1 , h MIN , h 2 .
  • FIG. 5a shows the table 1 with the tabletop 4 in its horizontal, substantially centered position, with the projections 21, 21' of the head 3 having zero tilt ⁇ relative to the floor.
  • FIG. 5b shows the table 1 with the tabletop 4 still in its horizontal position but translated to the right into the maximum longitudinal translation position, and with the patient support surface 25 at a minimum height h MIN from the floor.
  • the particular configuration of the guide means 6 allows the minimum height h MIN of the support surface 25 of the tabletop 4 from the floor to be smaller than standard values obtained in surgical tables with straight guides. The difference between such minimum values will be determined by the radius of curvature r of the slide 7 and the guide 6.
  • the microprocessor control means cause the rotary and translational motion of the tabletop 4 and the rotational motion of the axis X' to be simultaneous and coordinated.
  • the synchronism of such motions further allows the support surface 25 of the tabletop 4 to be maintained at a constant tilt ⁇ , e.g. always horizontal, thereby making the table 1 as comfortable as possible for the patient.
  • FIGS. 6a and 6b show two operating positions of the table 1 with the tabletop 4 adapted to move the patient into the Trendelenburg or reverse Trendelenburg position, with the tilt ⁇ of the support surface 25 relative to the transverse plane of symmetry ⁇ ' being provided in the former case by the oscillation of the lateral projections 21, 21' of the head 3 only and in the latter case by the coordinated motion of the guide means 5 and the lateral projections 21, 21'.
  • the displacement of the slide 7 along the guide 6 is found to increase the tilt ⁇ of the tabletop 4 relative to the horizontal position, thereby forming an angle in a range from about 45° in the case of FIG. 6a to about 55° or more in the case of FIG. 6b .
  • Higher values can be reached by increasing the longitudinal extension l or decreasing the radius of curvature r of the slide 7.
  • the table 1 will provide considerable sturdiness and allow even distribution of the patient's weight, which will make it suitable for supporting patients of very large size without affecting reliability.

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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)

Claims (7)

  1. Ein einstellbarer Operationstisch mit
    - einer auf dem Boden stehenden lasttragenden Säule (2) mit einem oberen Kopf (3), die eine im Wesentlichen vertikale Symmetrieachse (W) bestimmt, wobei der Kopf (3) ein Paar komplementär geformter, seitlicher Vorsprünge (21, 21') aufweist,
    - einem Tischkopf (4), der an dem Kopf (3) befestigt ist zum Positionieren des Patienten,
    - Führungseinrichtungen (5) zum Führen des Tischkopfes (4) in einer longitudinalen Symmetrieebene (π), die durch die vertikale Achse (W) geht, wobei die Führungseinrichtungen (5) eine gekrümmte Führung (6) aufweisen, die ausgelegt ist der Säule (2) zugeordnet zu werden und eine Platte (7), die ausgelegt ist für Bewegung zu der Führung (6),
    - ersten Betätigungseinrichtungen (8), die auf der Platte (7) betrieben werden, um deren Bewegung zu veranlassen entlang der gekrümmten Führung (6), wobei die ersten Betätigungseinrichtungen (8) mindestens ein kinematisches Paar (13) beinhalten mit einer ersten transversalen Achse (X), die drehbar auf der gekrümmten Führung (6) montiert ist,
    - zweiten Betätigungseinrichtungen (22), die kinematisch verbunden sind mit den seitlichen Vorsprüngen (21, 21') des Kopfes (3) zur Einstellung der Neigung (α) des Tischkopfs 4 relativ zum Boden,
    - dritten Betätigungseinrichtungen zur Veranlassung von Verschiebung des Kopfes (3) in einer im Wesentlichen vertikalen Richtung zur Höheneinstellung des Tischkopfs (4),
    wobei die gekrümmt lineare Führung (6) ausgebildet ist zur Befestigung an dem Kopf (3) und die Platte (7) steif verbunden ist mit dem Tischkopf (4), gesperrt gegen Drehung relativ dazu, wobei die ersten Betätigungseinrichtungen (8) an den Kopf (3) montiert sind, um Bewegung der Platte (7) zu veranlassen relativ zu der gekrümmten Führung (6),
    wobei die gekrümmte Führung (6) gekoppelt ist an ein Paar von Schnittstellen-Elementen (19, 19'), von denen jedes eine besonders geformte, konkave Oberfläche (20, 20') aufweist, die ausgelegt ist lösbar im Eingriff zu sein mit entsprechenden der seitlichen Vorsprüngen (21, 21'), so dass die Führung (6) integral verbunden werden kann mit dem Kopf (3), wobei die seitlichen Vorsprünge (21, 21') an der Säule (2) um eine zweite transversale Achse (X') im Wesentlichen parallel zu der ersten Achse (X) schwenkbar angelenkt sind,
    und indem weiter Einrichtungen vorgesehen sind zur koordinierten Steuerung der ersten (8), zweiten (22) und dritten Betätigungseinrichtungen zur gleichzeitigen Steuerung der winkeligen und longitudinalen Stellungen des Tischkopfs (4) relativ zu der Säule (2), wobei die Steuereinrichtungen eine Mikroprozessoreinheit umfassen mit einem geeigneten Computerprogramm, das darin installiert ist.
  2. Operationstisch gemäß Anspruch 1, dadurch gekennzeichnet, dass die gekrümmte Führung (6) ein Paar seitlicher Stützen (9, 9') mit im Wesentlichen zylindrischen, nach oben konkaven Oberflächen (10) aufweist, die symmetrisch um die longitudinale Symmetrieebene (π) angeordnet sind.
  3. Operationstisch gemäß Anspruch 2, dadurch gekennzeichnet, dass die Platte (7) ein Paar gebogener Elemente (11, 11') mit Bodenflächen (12, 12') aufweist, die komplementär geformt sind zu den Oberflächen (10) der entsprechenden seitlichen Stützen (9, 9').
  4. Operationstisch gemäß Anspruch 3, dadurch gekennzeichnet, dass das mindestens eine kinematische Paar (13) an einem Ende einer Motorwelle (14) angeordnet ist.
  5. Operationstisch gemäß Anspruch 4, dadurch gekennzeichnet, dass das mindestens eine kinematische Paar (13) mindestens ein Zahnrad (17) aufweist, das einteilig ist mit der Welle (14) zum Eingriff mit einer entsprechenden Zahnstange (18), die auf einer entsprechenden Oberfläche (15) von einem der gebogenen Elemente (11, 11') angeformt sind.
  6. Operationstisch gemäß Anspruch 1, dadurch gekennzeichnet, dass der Tischkopf (4) mindestens ein zentrales Modul zur Unterstützung des Beckens des Patienten aufweist, wobei Endmodule an die longitudinalen Enden des zentralen Moduls angelenkt sind zur Unterstützung jeweils des Torsos und der Beine des Patienten.
  7. Operationstisch gemäß Anspruch 6, dadurch gekennzeichnet, dass die Platte (7) steif verbunden ist mit dem zentralen Modul (4), wobei die gebogenen Elemente (11, 11') im Wesentlichen dieselbe longitudinale Abmessung (I) aufweisen wie die Letzteren.
EP20070024343 2006-12-22 2007-12-14 Kippbarer Operationstisch Active EP1943996B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITVI20060360 ITVI20060360A1 (it) 2006-12-22 2006-12-22 Tavolo operatorio orientabile

Publications (3)

Publication Number Publication Date
EP1943996A2 EP1943996A2 (de) 2008-07-16
EP1943996A3 EP1943996A3 (de) 2009-02-11
EP1943996B1 true EP1943996B1 (de) 2014-08-06

Family

ID=39207081

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070024343 Active EP1943996B1 (de) 2006-12-22 2007-12-14 Kippbarer Operationstisch

Country Status (2)

Country Link
EP (1) EP1943996B1 (de)
IT (1) ITVI20060360A1 (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE264297C (de) *
FR2041291A5 (de) * 1969-04-18 1971-01-29 Descamps Louis
US6070281A (en) * 1997-04-18 2000-06-06 Siemens Aktiengesellschaft Patient orientation table
IT1296688B1 (it) * 1997-11-19 1999-07-14 Protesi Trento Spa Off Di Tavolo operatorio multifunzionale
DE102005054222A1 (de) * 2005-11-14 2007-05-16 Maquet Gmbh & Co Kg Operationstisch

Also Published As

Publication number Publication date
EP1943996A2 (de) 2008-07-16
ITVI20060360A1 (it) 2008-06-23
EP1943996A3 (de) 2009-02-11

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