EP0491085B1 - Fauteuil dentaire - Google Patents

Fauteuil dentaire Download PDF

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Publication number
EP0491085B1
EP0491085B1 EP90124831A EP90124831A EP0491085B1 EP 0491085 B1 EP0491085 B1 EP 0491085B1 EP 90124831 A EP90124831 A EP 90124831A EP 90124831 A EP90124831 A EP 90124831A EP 0491085 B1 EP0491085 B1 EP 0491085B1
Authority
EP
European Patent Office
Prior art keywords
chair
support part
patient
patients according
dental patients
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.)
Expired - Lifetime
Application number
EP90124831A
Other languages
German (de)
English (en)
Other versions
EP0491085A1 (fr
Inventor
Klaus Ing. grad. Stöckl
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to EP90124831A priority Critical patent/EP0491085B1/fr
Priority to DE59009354T priority patent/DE59009354D1/de
Priority to DK90124831.0T priority patent/DK0491085T3/da
Priority to US07/808,728 priority patent/US5203609A/en
Priority to JP3353474A priority patent/JPH04295357A/ja
Publication of EP0491085A1 publication Critical patent/EP0491085A1/fr
Application granted granted Critical
Publication of EP0491085B1 publication Critical patent/EP0491085B1/fr
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
    • A61G15/00—Operating chairs; Dental chairs; Accessories specially adapted therefor, e.g. work stands
    • A61G15/02—Chairs with means to adjust position of patient; Controls therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G2203/00—General characteristics of devices
    • A61G2203/30—General characteristics of devices characterised by sensor means
    • A61G2203/42—General characteristics of devices characterised by sensor means for inclination

Definitions

  • the invention relates to a dental patient chair, according to the preamble of claim 1.
  • control programs can be designed to be both fixed and individually changeable.
  • a modern patient chair is usually equipped with three control programs that can be called up at the push of a button if required.
  • the position of a support part in space can be defined by planes of an x, y, z coordinate system. If one considers this coordinate system two-dimensionally (the third dimension is relatively insignificant for the patient positioning), then the position of a support part, simplified by a straight line with the help of two points or a point and an angular relationship, can be determined in the coordinate system.
  • the position of the backrest can be determined in relation to an arbitrarily selectable zero point of an x / y coordinate system are determined by the angle that the backrest makes with respect to a horizontal reference plane or by the x- / y-coordinates of two points lying on a straight line that run in the longitudinal plane of the backrest, the one (x-) coordinate being the distance to a vertical reference plane (wall, cabinet, appliance base) and the other (y-) coordinate indicates the distance to a horizontal reference plane (floor).
  • the "mouth point” can thus be precisely defined by the coordinates of an x / y coordinate system with respect to a vertical and horizontal reference plane. These coordinates can be saved as a setpoint in a computer and continuously compared with actual values. If the values deviate, the upper part of the chair is adjusted by height adjustment and / or longitudinal displacement in order to maintain the "mouth point" in accordance with the entered target value.
  • the set "mouth point” can advantageously be entered as a variable. If the "mouth point” is changed in the x direction, it is advantageously possible to adapt it to the equipment (cabinets) adjacent to the patient chair; if, on the other hand, the "mouth point” is only changed in the y direction, it is advantageously possible to adapt it to the size of the practitioner.
  • the headrest part can be designed as a longitudinally adjustable head cushion, corresponding position sensors being provided in the area of the headrest; It is also conceivable to provide position sensors on the backrest itself in the area of the headrest, e.g. in the form of pressure sensors responsive to the contact pressure of the patient's head, with the aid of which the position of the patient's head in relation to the backrest can be detected.
  • both the working height ie the height of the reference point representing the "mouth point”
  • the distance in the horizontal to a vertical reference plane for all working positions is maintained by adjusting the upper part of the chair to adjust the headrest to the other body size in the x and y directions.
  • the treatment chair contains a stationary base part 1, on which a chair upper part, generally designated 2, is held in a height-adjustable manner.
  • the base part contains a base 1 a and a height-adjustable base part 1 b.
  • the upper part 2 of the chair contains a support 3 which can be adjusted along the upper part 1b, on which the seat 4 and backrest 5 of the chair are held.
  • Corresponding controllable drives A1, A2 are provided in order to adjust the height of the chair part 2 and also in the longitudinal direction of the chair (arrows 7 and 8).
  • the adjustable chair parts are assigned position sensors G1 to G4, with which the respective actual position of the chair parts can be detected in relation to a horizontal and vertical reference plane.
  • the sensors G1, G2 and G4 are linear displacement sensors, while the sensor G3 is designed as an angle sensor.
  • the position of the chair parts 2 to 6 can be related to an x- / y-coordinate system, its x-axis in a horizontal reference plane, preferably in the floor plane, and its y-axis in a vertical reference plane, preferably in Level of a room wall, to which the base part 1 has a defined distance (a), is clearly defined.
  • the position of the backrest 5 can be determined by the coordinates of two points P1, P2 which go through a straight line running along the backrest and / or by the angle of inclination ⁇ with respect to a reference plane.
  • a change in the "mouth point” also means a change in the working posture of the practitioner.
  • the practitioner would have to correct his working position and also the position of his devices and devices set to this working position by the dimension ⁇ x and ⁇ y.
  • this correction is avoided by, when the inclination of the backrest changes, the adjustment drives A1 and A2, which bring about the height adjustment and longitudinal displacement of the upper part of the chair, are adjusted synchronously in order to maintain or keep the "mouth point" constant. Further explanations are given in the description of the block diagram according to FIG. 5. The result of this synchronous adjustment is shown in Figure 2. From the starting position drawn with solid lines, which corresponds to the position shown in FIG. 1, the position shown in dash-dotted lines results in the case of a changed inclination of the backrest.
  • FIG. 3 shows a further advantageous variant of a patient chair.
  • the headrest part 6 is designed as a separate headrest, which is adjustable in the direction of arrows 11 and 12 relative to the (shorter) backrest 5 and that the seat 4 and backrest 5 are still together in the direction the arrow 13 can be tilted relative to the carrier 3.
  • Appropriate adjustment means A4, A5 and A6 as well as corresponding sensors G4, G5 and G6 are available accordingly. With the help of the sensors G4, G5, the position of the headrest relative to the backrest can be detected.
  • the adjustment means A4 and A5 can be manually operated adjustment means; it is also conceivable and advantageous to provide electrical adjustment drives here as well.
  • an adjustment motor can be arranged in the interior of the backrest 5, which adjusts the headrest support (sword) designated by 14 via a toothed rack or the like.
  • FIG. 4 shows the chair according to FIG. 3 in two different chair positions, which can be typical for two different treatments.
  • the first chair position shown in solid lines can be suitable, for example, for a seated practitioner and treatment of the lower jaw, while the second position shown in broken lines can be typical for treatment of a seated practitioner on the upper jaw.
  • Both chair positions advantageously determined by a control program, have a common "mouth point" M, which is retained during the transition from the first position indicated by solid lines to the second position shown in broken lines, which ultimately means that the patient's head merely changes during this change in the treatment position is rotated around the "mouth point" M.
  • the chair in this embodiment has three controllable drives A1, A2 and A3, which are advantageously electromotive drives.
  • the drives are powered by power amplifiers 20 and A / D converters 21 Central unit 22 (CPU) controlled.
  • Central unit 22 Central unit 22 (CPU) controlled.
  • Corresponding sensors G1 to G4 e.g. in the form of potentiometers, are provided between the chair parts, which are adjustable relative to each other, i.e. between the base and upper part, between the base part and support, and between the seat and backrest and headrest, which, depending on their relative position, provide a signal corresponding to the adjustment path deliver the central unit 22.
  • switches S1 to S3 are available, which can be used to initiate height adjustment and longitudinal displacement of the upper part of the chair, as well as inclination of the backrest.
  • the drives A1 to A3 are also controlled by the central unit 22 via a serial interface 23.
  • P1 to P n denote program selection keys with which various chair programs can be called up from a program memory 24 via the serial interface 23 and the central unit 22.
  • These programs can be programs that can be entered individually or also chair programs from storage systematics, in which certain dental treatments are assigned to certain dental positions according to an ergonomic scheme. Such a storage system is described, for example, in the article cited on page 5.
  • This stored target value can be corrected by an input unit 26 via the serial interface 23 in the central unit 22, as has been described with reference to FIG. 2 for adapting the height of the practitioner, by increasing the y value from an average value corresponding to an average size is changed below.
  • This corrected value is shown on a display 27 and automatically taken into account when a chair program is called up using the program selection buttons P 1 to P n .
  • control program i.e. in the program memory 24, an antropometric table is taken into account, by means of which a "mouth point" corresponding to the size of the practitioner is specified for a standing or sitting treatment.
  • this software specification is not fixed; rather, it can be expediently corrected individually by the practitioner, if desired, according to his personal wishes.
  • the work program of the central unit 22 is designated 29.
  • this setting is done as follows: If the patient has taken a seat in the chair, the practitioner will bring the chair into a position suitable for the treatment, in which the "mouth point", ie the center of the preparation site, lies in a working position that is favorable for him. If this position is reached, after a corresponding triggering process, the x / y value is entered as a target value into the memory 25 via the memory input key 30.
  • the central unit 22 detects the values determined by the corresponding transmitters G1 to G4, angle values being processed accordingly in the arithmetic unit of the central unit.
  • the position transmitter G4 can, if the head support part 6 rests on the backrest and can be displaced along this, be formed by suitable pressure-sensitive sensors which, depending on the contact pressure that the patient's head exerts on the head support part 6, one of the Transfer the appropriate size to the central unit.
  • the control device also works for the embodiment shown in FIGS. 3 and 4, in which the headrest part 6 is designed as a separate headrest, which is adjustable along the backrest 5 and also about an axle bearing in the direction the arrow 12 is arranged tiltable, and in which the entire upper part of the chair relative to the Carrier part 3 is arranged tiltable.
  • the drives A4 to A6 are expediently also motor drives.

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  • Health & Medical Sciences (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)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Claims (11)

  1. Fauteuil de dentisterie pour patient comportant
    une partie de base (1), sur laquelle est fixée, de manière à être réglable en hauteur et déplaçable longitudinalement, une partie supérieure (2) du fauteuil qui possède une partie formant siège, une partie formant dossier et une partie d'appui-tête (4,5,6) pour le patient,
    des moyens de réglage comportant des dispositifs d'entraînement commandables (A1,A2) au moins pour le réglage en hauteur et le déplacement longitudinal de la partie supérieure (2) du fauteuil, et
    un autre moyen de réglage (A3) pour régler la position inclinée de la partie formant dossier (5), des capteurs de position (G1 à G3) associés à la partie formant siège et à la partie formant dossier (4,5) et qui détectent la position réelle respective des parties du fauteuil au moins de façon bidimensionnelle dans un plan x et dans un plan y, en fonction d'un réglage en hauteur et d'un déplacement longitudinal de la partie supérieure du fauteuil, ainsi qu'en fonction d'un réglage de la partie formant dossier,
    l'unité de commande (22), qui agit de telle sorte que, dans le cas d'une modification de la position de la partie formant siège et de la partie formant dossier (4,5), les dispositifs d'entraînement (A1,A2) pour le réglage en hauteur et le déplacement longitudinal de la partie supérieure (2) du fauteuil sont activés dans un plan vertical, dans le sens d'un maintien constant de la valeur réelle (x),
    caractérisé par le fait
    qu'il est prévu au moins un autre moyen de réglage (A4,A5) pour déplacer de façon relative la partie (6) d'appui-tête par rapport à la partie formant dossier (5) et les capteurs de position (G4,G5) associés à ces parties,
    que des moyens (S1 à S3; 30, 25) sont prévus pour l'introduction et la mémorisation d'une valeur de consigne (xM, yM), qui correspond à la position d'un point de référence (M) associé à la partie (6) d'appui-tête, et
    que l'unité de commande est réalisée sous la forme d'une unité de commande et de calcul (22) de telle sorte qu'en fonction de la position réelle de la partie (6) d'appui-tête,
    une valeur réelle (x, y) est déterminée pour le point de référence (M) par rapport aux deux plans (x,y), auquel cas, lors d'une modification de la position de la partie formant siège et de la partie formant dossier (4,5), les dispositifs d'entraînement (A1,A2) pour le réglage en hauteur et le déplacement longitudinal de la partie inférieure (2) du fauteuil sont réglés dans le sens d'un maintien constant du point de référence (M) conformément à la valeur de consigne introduite.
  2. Fauteuil de dentisterie pour patient suivant la revendication 1, caractérisé par le fait que des moyens (P1 à Pn, 24) sont prévus pour l'introduction et la mémorisation de grandeurs, qui fixent la position des parties réglables du fauteuil, pour une multiplicité de positions différentes du fauteuil et que dans l'unité de commande et de calcul (22), les valeurs de position (x,y) des parties réglables du fauteuil pour les différentes positions du fauteuil sont fixées sur la valeur de consigne (xM,yM) indiquées précédemment, en tant que point de référence commun (M), des moyens pour activer les dispositifs d'entraînement commandable (A1 à A3) étant prévus pour se rapprocher de l'une des différentes positions du fauteuil.
  3. Fauteuil de dentisterie pour patient suivant la revendication 1 ou 2, dans lequel sont prévus des moyens d'entrée (26), à l'aide desquels la valeur de consigne (xM, yM) pour le point de référence (M) peut être modifiée.
  4. Fauteuil de dentisterie pour patient suivant la revendication 3, dans lequel les moyens d'entrée (26) modifient la valeur de consigne (xM, yM) du point de référence (M) dans la direction verticale (y).
  5. Fauteuil de denstisterie pour patient suivant la revendication 4, dans lequel une valeur de consigne représentant la taille du corps d'un praticien peut être fixée à l'aide des moyens d'entrée (26).
  6. Fauteuil de dentisterie pour patient suivant l'une des revendications 3 à 5, dans lequel un dispositif d'affichage (27) est associé aux moyens d'entrée (26).
  7. Fauteuil de dentisterie pour patient suivant l'une des revendications 1 à 6, dans lequel le point de référence (M) est déterminé par un "point d'embouchure", situé à la distance définie (b) de la partie (6) de l'appui-tête, d'une tête moyenne de patient, dont les dimensions sont fixées de façon empirique.
  8. Fauteuil de dentisterie pour patient suivant l'une des revendications 1 à 7, dans lequel le point de référence (M) est réglable en fonction des dimensions du corps du patient, par réglage de la partie (6) de l'appui-tête par rapport à la partie formant dossier (5).
  9. Fauteuil de dentisterie pour patient suivant l'une des revendications 1 à 8, dans lequel la partie de l'appui-tête est réalisée sous la forme d'un appui-tête (6) retenu avec possibilité de déplacement longitudinal par rapport à la partie formant dossier (5).
  10. Fauteuil de dentisterie pour patient suivant la revendication 9, dans lequel le capteur de position (G4) associé à la partie de l'appui-tête est activé lors de la venue en appui-tête du patient.
  11. Fauteuil de dentisterie pour patient suivant la revendication 10, dans lequel les capteurs de pression, qui répondent à la pression d'application de la tête (PH) du patient, sont prévus en tant que capteur de position (G4).
EP90124831A 1990-12-19 1990-12-19 Fauteuil dentaire Expired - Lifetime EP0491085B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP90124831A EP0491085B1 (fr) 1990-12-19 1990-12-19 Fauteuil dentaire
DE59009354T DE59009354D1 (de) 1990-12-19 1990-12-19 Zahnärztlicher Patientenstuhl.
DK90124831.0T DK0491085T3 (da) 1990-12-19 1990-12-19 Tandlæge-patientstol
US07/808,728 US5203609A (en) 1990-12-19 1991-12-17 Dental patient chair with changing patient position while maintaining mouth position
JP3353474A JPH04295357A (ja) 1990-12-19 1991-12-17 歯科用患者椅子

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90124831A EP0491085B1 (fr) 1990-12-19 1990-12-19 Fauteuil dentaire

Publications (2)

Publication Number Publication Date
EP0491085A1 EP0491085A1 (fr) 1992-06-24
EP0491085B1 true EP0491085B1 (fr) 1995-06-28

Family

ID=8204872

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90124831A Expired - Lifetime EP0491085B1 (fr) 1990-12-19 1990-12-19 Fauteuil dentaire

Country Status (5)

Country Link
US (1) US5203609A (fr)
EP (1) EP0491085B1 (fr)
JP (1) JPH04295357A (fr)
DE (1) DE59009354D1 (fr)
DK (1) DK0491085T3 (fr)

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DE4306466A1 (de) * 1992-05-18 1993-11-25 Ulrich Dr Kurze Verfahren und Vorrichtung zur behandlungsgerechten Lagerung eines Patienten
DE4222996A1 (de) * 1992-07-13 1994-01-20 Kurze Ulrich Dr Med Dent Behandlersitz, insbesondere für die zahnmedizinische Behandlung
DK0589086T3 (da) * 1992-09-24 1996-04-09 Siemens Ag Tandlæge-patientstol
US5556163A (en) * 1994-08-17 1996-09-17 Eac Corporation Automatically adjustable office and task chairs
US6212714B1 (en) * 1995-01-03 2001-04-10 Hill-Rom, Inc. Hospital bed and mattress having a retracting foot section
US7453451B1 (en) * 1999-03-16 2008-11-18 Maguire Francis J Jr Moveable headrest for viewing images from different directions
US7724278B2 (en) * 1995-05-30 2010-05-25 Maguire Francis J Jr Apparatus with moveable headrest for viewing images from a changing direction-of-view
US5651587A (en) * 1995-06-09 1997-07-29 P.L. Porter Co. Vehicle seat and system for controlling the same
DE19603318A1 (de) * 1996-01-31 1997-08-14 Dewert Antriebs Systemtech Steuerungssystem für elektromotorisch betätigbare Verstelleinrichtungen für Krankenhausbetten
US9274596B2 (en) 1999-03-16 2016-03-01 Susan C. Maguire Moveable headrest for viewing images from different directions
FR2818122B1 (fr) * 2000-12-14 2003-07-04 Alm Dispositif de commande et d'assistance a l'utilisation pour une table d'operations et table d'operations le comportant
JP2006122384A (ja) * 2004-10-29 2006-05-18 Takara Belmont Co Ltd 歯科用椅子の自動高さ調整装置
JP2007068769A (ja) * 2005-09-07 2007-03-22 Osada Res Inst Ltd 歯科用治療椅子
US7546215B2 (en) * 2007-04-14 2009-06-09 Crane Co. Method for calibrating a powered seat
DE102007022037B3 (de) * 2007-05-08 2008-11-13 Sirona Dental Systems Gmbh Behandlungsstuhl mit Kopfstützensteuerung und Verfahren für das Verstellen eines Behandlungsstuhls
JP6260056B2 (ja) * 2014-06-02 2018-01-17 長田電機工業株式会社 歯科治療椅子
JP6511238B2 (ja) * 2014-09-08 2019-05-15 ミズホ株式会社 手術台
US9962305B2 (en) * 2015-01-09 2018-05-08 Panasonic Corporation Living support system and living support method
US11140987B2 (en) * 2019-02-14 2021-10-12 Deer Solutions LLC Athletic chair with adjustable heating and height
US20240216195A1 (en) * 2022-12-28 2024-07-04 Roger Joseph Voorhis, Jr. Personal Lift Chair
EP4406524A1 (fr) 2023-01-26 2024-07-31 KaVo Dental GmbH Fauteuil de traitement médical avec dossier et appui-tête réglables
FI20235294A1 (en) * 2023-03-13 2024-09-14 Planmeca Oy Chair for dental patients

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Publication number Priority date Publication date Assignee Title
US3984146A (en) * 1970-03-31 1976-10-05 Siemens Aktiengesellschaft Apparatus for actuating operational chairs
DE2064187A1 (de) * 1970-12-29 1972-07-06 Kaltenbach & Voigt Zahnärztlicher Behandlungsstuhl
US3804460A (en) * 1972-05-30 1974-04-16 Pelton & Crane Co Power operated treatment chair
US3934928A (en) * 1973-12-27 1976-01-27 Dentsply Research & Development Corporation Adjustable operatory chair
JPS52151291A (en) * 1976-06-11 1977-12-15 Taiko Iryoki Seisakusho Kk Chair for netal treatment
DE2941185B1 (de) * 1979-10-11 1980-12-18 Emda Lageeinstellvorrichtung fuer einen zahnaerztlichen Behandlungsstuhl
DE3015070C2 (de) * 1980-04-18 1986-07-10 Siemens AG, 1000 Berlin und 8000 München Steuereinrichtung für einen zahnärztlichen Behandlungsstuhl
US4650247A (en) * 1985-08-26 1987-03-17 Berg Joseph A Orthopedic instrument having relatively adjustable seat sections
DE3611400C1 (de) * 1986-04-04 1987-11-12 Kaltenbach & Voigt Anordnung zum Einstellen eines zahnaertzlichen Behandlungsstuhles

Also Published As

Publication number Publication date
EP0491085A1 (fr) 1992-06-24
DE59009354D1 (de) 1995-08-03
JPH04295357A (ja) 1992-10-20
DK0491085T3 (da) 1995-11-20
US5203609A (en) 1993-04-20

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