EP1968519A1 - Fauteuil de soins dote d'une surface d'assise basculante et réglable en hauteur pour positionner un patient - Google Patents

Fauteuil de soins dote d'une surface d'assise basculante et réglable en hauteur pour positionner un patient

Info

Publication number
EP1968519A1
EP1968519A1 EP06830837A EP06830837A EP1968519A1 EP 1968519 A1 EP1968519 A1 EP 1968519A1 EP 06830837 A EP06830837 A EP 06830837A EP 06830837 A EP06830837 A EP 06830837A EP 1968519 A1 EP1968519 A1 EP 1968519A1
Authority
EP
European Patent Office
Prior art keywords
seat
treatment chair
angle
backrest
chair according
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
EP06830837A
Other languages
German (de)
English (en)
Other versions
EP1968519B1 (fr
Inventor
Dieter Fornoff
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.)
Sirona Dental Systems GmbH
Original Assignee
Sirona Dental Systems 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 Sirona Dental Systems GmbH filed Critical Sirona Dental Systems GmbH
Publication of EP1968519A1 publication Critical patent/EP1968519A1/fr
Application granted granted Critical
Publication of EP1968519B1 publication Critical patent/EP1968519B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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

Definitions

  • Treatment chair with a height-adjustable and tiltable seat for storing a patient
  • the invention relates to a treatment chair comprising a height-adjustable seat for supporting a patient.
  • a treatment chair comprising a height-adjustable seat for supporting a patient.
  • the patient can be brought into several necessary for the treatment bearings.
  • treatment chairs which provide corresponding storage positions of the patient for the different treatments.
  • the treatment area within the oral cavity moves as little as possible in a change in patient positioning in the horizontal direction and can be brought in the vertical direction to a desired height.
  • DE 101 47 349 A1 discloses a medical or dental medical treatment chair which comprises a seat part, a back part, a headrest support arranged on the back part and a headrest, the headrest being adjustable relative to the back part and this with respect to the seat surface , It is disadvantageous that when the backrest is tilted into a horizontal position required for a treatment, the treatment area in the oral cavity of the patient is displaced by a substantial distance in the horizontal direction, so that, for example, an instrument holder and a treatment light are carried along to the new position have to. Another disadvantage is that below the treatment chair, a lifting mechanism is mounted with a considerable amount of space for the height adjustment, whereby access to the patient is difficult.
  • DE 101 14 659 A1 discloses a dental treatment chair with a height-adjustable seat.
  • the height adjustment is accomplished by means of a drive, wherein an adjusting mechanism is configured such that upon an elevation of the seat, the angular position of the seat relative to a base remains unchanged.
  • the object of this invention is to provide a patient support necessary for the treatment by a simple adjustment mechanism in which the area to be treated shifts as little as possible in a horizontal direction when the patient support is changed.
  • the patient should be ergonomic in all essential adjustable treatment positions.
  • the mechanical adjustment mechanism should be space-saving.
  • the treatment chair comprises a height-adjustable seat for supporting a patient.
  • the seat surface is connected via a first rotary joint to a guide means, wherein the first rotary joint is guided by means of the guide means on a path concave to a momentary pole at a distance R 1 to the instantaneous center point C.
  • the guide means is a mechanical means adapted to guide the first pivot on the path concave towards the instantaneous center C.
  • the instantaneous pole C is on Intersection of straight lines that are perpendicular to the direction of movement of the guided first pivot at infinitesimally adjacent points on the concave track and go through the respective points.
  • the instantaneous pole C is thus related only to a limited section of the path which comprises the points considered.
  • the distance between the instantaneous center C and the first pivot is referred to as Ri.
  • the instantaneous pole C is at a height of at least 0.8 m above the ground.
  • the instantaneous pole C will shift in the horizontal direction when the first pivot joint is moved along this path.
  • the instantaneous pole C remains at a single location.
  • the instantaneous pole C according to the invention may not fall below the height of 0.8 m above the ground.
  • a concave trajectory otherwise shaped may result in non-rectilinear change in the instantaneous pole C during the adjustment of the first pivot along the concave trajectory.
  • the first hinge is arranged on the guide means at a distance R 2 of at least 0.6 m to a hip point H of the patient mounted on the seat.
  • the hip point H is the theoretically imagined center of rotation between the upper body and the thighs of the patient.
  • a rotation of the Hunticians H to the first pivot and a mouth M is also rotated about the first pivot.
  • the mouth M is a central point of the oral cavity of the patient.
  • the position of the mouth M changes in the horizontal direction by a horizontal change in position AX 1 and in the vertical direction by a vertical change in position AZ 1 .
  • One advantage is that the change in patient's position in the form of a tilt of the upper body and of the head and a desired height adjustment of the mouth point M result in a horizontal displacement of the mouth point M which is smaller than in known treatment chairs .
  • known treatment chairs the patient is brought from the sitting position to a lying treatment position by the backrest folded back, folded up the legrest and the seat height is adjusted vertically, so that the mouth point M the desired height and the patient the desired orientation reached.
  • the backrest, the patient supported thereon and its mouth M are thus pivoted together about the point of connection between the backrest and the seat, and a substantial displacement of the mouth point M in the horizontal direction is effected.
  • This horizontal displacement of the mouth M has the disadvantage that the instrument holder and the treatment light must be tracked in the same way the mouth M. This increases the expense for the practitioner.
  • a correction of this horizontal displacement of the mouth point M is performed by shifting the entire treatment chair by the same amount by means of an additional horizontal adjustment in the opposite direction.
  • the separate adjustment mechanisms for the height adjustment on the one hand and the horizontal adjustment on the other hand cause the adjusting mechanism cumbersome rather, voluminous and expensive in production than the adjustment mechanism according to the invention.
  • Another advantage is that the seat can be brought to a lower height than in known treatment chairs with respect to the ground, because the lifting mechanism is saved for the height adjustment below the seat.
  • the concave path to the instantaneous pole C, on which the first rotary joint is guided is circular. This has the consequence that the instantaneous pole C remains in one position during the adjustment of the first rotary joint.
  • the seat is connected via a support frame with the first hinge.
  • a second pivot is mounted, which rotatably connects the seat with the support frame, wherein an adjusting means for adjusting the seat is provided relative to the support frame, wherein the seat is connected to a backrest.
  • the backrest is connected to the seat and is due to the additional adjustment together with the
  • Swivel joint around the instantaneous pole C and the additional Position of the seat with the legislative part to the second pivot can be combined so that a parallel displacement of the patient takes place, whereby the angular position of the upper body and the legs is maintained towards the ground.
  • the horizontal position changes AX 1 and ⁇ X V and the vertical position changes AZ 1 ⁇ Z V are added, resulting in a resulting change in position of the mouth point M.
  • a further advantage is that, due to the additional displacement of the seat surface with the backrest about the second pivot joint, a further degree of freedom for the change in position of the mouth point M is added and thus the adjustable range of M is widened.
  • the seat is connected to the first pivot via a carrier frame.
  • a second pivot is mounted, which rotatably connects the seat with the support frame, wherein an adjusting means for adjusting the seat is provided against the Trägrah- men, wherein the support frame is connected to a backrest.
  • Adjustment not moved It is thus possible to shift the legs while the upper body of the patient remains the same.
  • the first rotary joint is about the Momentanpol C between a lower end position with an angle cp2 to the horizontal of at most -90 ° and an upper end position with the angle cp2 to the horizontal of at least at least 160 °, ie up to the angle ⁇ 2 -200 ° relative to the horizontal adjustable.
  • This provides a sufficiently adjustable angular range to set all desired treatment positions.
  • the first hinge is mounted on an arcuate carriage, wherein the carriage is driven and guided in a drive and guide unit. By using an arcuate carriage, the first pivot is guided in a simple manner on the path concave to the instantaneous pole C.
  • the carriage on a telescopic rail which extends the adjustment of the carriage by a further angle segment ⁇ i 'between 10 ° and 35 °, wherein the first hinge is attached to the outer end of the telescopic rail.
  • ⁇ i ' between 10 ° and 35 °
  • the first hinge is attached to the outer end of the telescopic rail.
  • an additional adjustment path of the first rotary joint is provided around the instantaneous pole C.
  • the telescopic rail is moved out only after reaching the upper end position of the carriage, for example, from the inside of the carriage. Due to the extended adjustment path, the adjustable range of the mouth point M is also extended.
  • the rotation of the seat is driven about the first pivot by means of an adjustment means which is mounted between a pivot on the carriage and a pivot on the seat.
  • the adjustment also serves as a support for the seat.
  • the adjusting means is moved during pivoting of the carriage and requires no adaptation.
  • the rotation of the seat around the first pivot can be driven by means of an adjusting means, which acts directly on the first pivot.
  • an adjusting means which acts directly on the first pivot.
  • the arcuate carriage at a facing the first hinge end of the Antriebsund guide unit on a tangent to the horizontal forms an angle ⁇ , which is adjustable in an angular range of 15 ° to 45 °.
  • ⁇ is adjustable in an angular range of 15 ° to 45 °.
  • the connecting lines between the two ends of the carriage and the instantaneous C form an angular segment ⁇ i of 30 ° to 120 °.
  • an angle segment ⁇ i is particularly advantageous.
  • the connecting line between the first pivot joint in the lower end position and the instantaneous pole C with the connecting line between the first pivot joint in the upper end position and the instantaneous C forms an angular range .DELTA.cp2 which is at least 15 ° and at most 110 °.
  • This angular range ⁇ 2 defines a circle segment ment, within which the first pivot is adjustable.
  • the carriage has a rigid cover which partially covers the drive and guide unit. This ensures that the carriage is protected in the drive and guide unit from contamination and a risk of injury is prevented by unintentional reaching between the two mechanical parts.
  • the first rotary joint is guided by means of a pivoting arm about a third rotary joint in the instantaneous pole C on a circular path with a radius Ri.
  • the first hinge is guided on one side by means of the pivoting arm, the opposite side and the space below the treatment chair being completely free of internals and allowing the practitioner greater range of motion.
  • the rotation of the seat is driven about the first pivot by means of an adjusting means which is mounted between a pivot on the seat and the third pivot in the instantaneous center C.
  • an additional adjustment in particular for the height adjustment of the seat, is provided.
  • a backrest which is adjustable with respect to the seat surface by means of a curved guide between the seat surface and the backrest.
  • the backrest can be tilted relative to the seat surface in order to bring the upper body of the patient into the desired angular position to the thighs.
  • the position of the mouth point M is thereby changed in the horizontal direction by AX 111 and in the vertical direction by AZ 111 .
  • a headrest is provided, which is adjustable by means of a curve guide with respect to the backrest. As a result, the headrest can be tilted relative to the backrest in order, for example, to bring the head into an overstretched position, if this should be necessary.
  • the mouth point M is displaced in the horizontal direction by ⁇ X IV and in the vertical direction by ⁇ Z IV .
  • the head is in an overstretched position when the head is tilted rearward of the neck with respect to the upper body. This allows the practitioner to examine and treat a part of the oral cavity that can only be reached from above. In the over-extended position of the head swallowing is more difficult and the reduced blood circulation can cause dizziness in the patient. Therefore, the patient should remain for as short a time as possible in the over-extended position of the head.
  • a subsequent to the seat leg rest is provided, which is adjustable relative to the seat. This allows the lower leg to be angled ergonomically with respect to the thighs of the patient to ensure blood circulation to improve patient comfort.
  • the distance R 1 of the first rotary joint to the instantaneous pole C is at least 0.75 m and at most 1.55 m.
  • the instantaneous pole C is arranged at a height of between 0.8 m and 1.6 m above the ground.
  • the distance Ri between the pivot and the instantaneous center C is greater than the distance R2 between see the hip point H and the first pivot. This makes it possible to achieve a particularly compact design.
  • a treatment area B which encompasses a mouth point M, wherein the distances Ri and R2 and the two curved guides are dimensioned such that one with the adjustment of the backrest relative to the seat along the first curve guide and vertical position changes AZ 111 and ⁇ Z IV of the point of mouth M due to a vertical change in position AZ 1 of the mouth point M during an adjustment of the first rotary joint along the path to the instantaneous center C concave path, by a vertical position change AZ 11 of the mouth M on a rotation of the seat around the first pivot and by a possible vertical change in position .DELTA.V be V compensated for in an adjustment to the second pivot.
  • the vertical position change AZ 1 , AZ 11 , AZ 111 , .DELTA.Z IV and .DELTA.Z V at different displacements are thus chosen so that the sum gives a resulting vertical position change .DELTA.Z G , which is zero.
  • the horizontal changes in position of the mouth point M AX 1 , AX 11 , AX 111 , ⁇ X IV and ⁇ X V add up to a resulting total horizontal position change ⁇ X G.
  • the treatment chair can be brought into an entry position, wherein the support surface the seat cushion against the horizontal forms an angle of -10 ° to -20 ° and the support surface of the backrest padding against the support surface of the seat cushion occupies an angle of 90 ° to 100 °, wherein the leg rest a smaller height than the seat and the lowest point of The surface of the seat upholstery has a height of at least 450 mm and not more than 550 mm.
  • the treatment chair in a
  • Examination position are brought to a seated practitioner, the support surface of the seat cushion against the horizontal angle of -10 ° to -20 °, the bearing surfaces of the headrest cushion and the backrest cushion are aligned, the contact surfaces of the backrest cushion with the seat cushion an angle of 100 ° to 120 ° and the connecting line between a cranial vertex S and the cranium next cervical vertebra W forms an angle to the horizontal of 40 ° to 50 ° and coincides with the alignment of the spine, the mouth M at a height of at least 1050 mm and at most 1150 mm.
  • the practitioner can make an examination of the oral cavity while sitting.
  • the treatment chair can be brought into a treatment position with a seated practitioner and treatment of a lower jaw region, wherein the support surface of the seat cushion against the horizontal forms an angle of -20 ° to -30 °, the bearing surfaces of the headrest cushion and the backrest cushion are aligned with each other Pads the backrest cushion with the Weg lakepolsters form an angle of 120 ° to 150 ° and the connecting line between the skull vertex S and the cranium next cervical vertebra W forms an angle to the horizontal of 10 ° to 20 ° and coincides with the alignment of the spine, said Mouth point M is at a height of at least 700 mm and not more than 900 mm. In this position of the treatment chair, the practitioner can sit while sitting the lower jaw area of the patient to treat.
  • the treatment chair can be brought into a treatment position with a seated practitioner and treatment of an upper jaw region, wherein the support surface of the seat cushion against the horizontal forms an angle of -20 ° to -30 °, the bearing surfaces of the headrest cushion and the backrest cushion an angle of 190 ° form up to 220 °, the contact surfaces form the backrest cushion with the seat cushion an angle of 120 ° to 150 ° and the connecting line between the skull vertex S and the cranium nearest cervical vertebra W forms an angle to the horizontal of -20 ° to -30 ° and with the orientation of the spine coincides, the mouth point M is in a height of at least 700 mm and at most 900 mm. In this position of the
  • the practitioner can treat the upper jaw area while sitting.
  • the treatment chair can be brought into a treatment position when the practitioner is standing and when treating a lower jaw region, wherein the support surface of the seat cushion against the horizontal forms an angle of -15 ° to -25 °, the Support surfaces of the headrest cushion and the backrest cushion are aligned with each other, the support surfaces form the backrest cushion with the seat cushion an angle of 120 ° to 150 ° and the connecting line between the skull vertex S and the cranium next cervical vertebra W an angle to the horizontal of 15 ° to 25 ° and coincides with the alignment of the spine, the mouth point M is in a height of at least 1100 mm and at most 1400 mm. In this position of the
  • Treatment chair the practitioner can treat standing in the lower jaw area of the patient.
  • the treatment chair can be brought into a treatment position when the practitioner is standing and treating an upper jaw region, wherein the support surface of the seat cushion against the horizontal forms an angle of -20 ° to -30 °, the bearing surfaces of the headrest cushion and the backrest cushion are aligned with each other Pads the backrest pad with the
  • Pads form an angle of 120 ° to 150 ° and the connecting line between the skull vertex S and the cranium nearest cervical vertebra W forms an angle to the horizontal of 10 ° to 20 ° and coincides with the alignment of the spine, said
  • Mouth point M is at a height of at least 1100 mm and at most 1400 mm.
  • the practitioner can treat the upper jaw area of the patient while standing.
  • the treatment chair in a
  • Exit position can be brought, the bearing surface of the seat cushion is horizontally at a height of at least 500 mm and at most 700 mm, and wherein the bearing surfaces form the backrest cushion with the seat cushion at an angle of 90 ° to 110 °.
  • the exit position the exit of the patient from the chair is facilitated.
  • the patient can be placed in a shock storage, wherein the backrest relative to the seat in a lower position and the leg rest relative to the seat in a higher position, wherein the support surface of the
  • Sitting padding against the horizontal forms an angle of -30 ° to -50 °, the bearing surfaces of the headrest pad and the backrest cushion are aligned with each other and the bearing surfaces of the backrest cushion and the seat cushion a
  • Form angles of 130 ° to 150 ° In this position of the treatment chair, the patient is placed in a position that counteracts a shock suffered.
  • the treatment chair can be brought to a lowest position, wherein the lowest point of the seating surface of the seat is in a height of 300 mm and 450 mm, wherein the support surface of the seat cushion against the horizontal forms an angle of -20 ° to -30 °, the Support surfaces of the headrest cushion and the backrest cushion are aligned with each other, the bearing surfaces of the backrest cushion and the seat cushion form an angle of 80 ° to 100 °.
  • the patient In this position of the treatment chair, the patient can be brought to its hip point H in a lowest possible position.
  • Fig. 1 is an overall view of a dental treatment chair with essential mechanical elemen- th, the
  • Fig. 2 is a sketch of the treatment chair according to the invention in a reference position
  • Fig. 5 is a sketch of an adjustment of a backrest relative to the seat
  • FIG. 6 is a sketch of an adjustment of a headrest relative to the backrest
  • FIG. 7 is a sketch of an adjustment of a seat surface relative to the support frame with an adjustment means which is mounted between the seat surface and the support frame
  • FIG. 9 is a sketch of an examination position for a seated practitioner
  • FIG. 10 is a sketch of a treatment position for a seated practitioner in the treatment of the lower jaw region
  • FIG. 11 is a sketch of a treatment position for a sedentary Treater treating the upper jaw region
  • the 12 is a sketch of a treatment position for a stationary practitioner in the treatment of the lower jaw region
  • Fig. I J is a sketch of a treatment position for a standing practitioner in treatment of the upper jaw region
  • Fig. 14 is a sketch of an exit position
  • Fig. 15 is a sketch of a shock storage
  • Fig. 16 is a sketch of a bottom position of the seat
  • Fig. Fig. 1 is a sketch of an adjustment of the support frame with an adjusting means which engages directly on a hinge between the carriage and the support frame
  • Fig. 18 shows an embodiment for the extension of
  • Fig. 19 shows an embodiment of a drive and guide unit which is adjustable in its angular position
  • Fig. 20 is a side view of an alternative embodiment of the treatment chair, which is rotatably suspended on a support
  • Fig. 21 is a plan view of the embodiment of the treatment chair
  • Fig. 20 shows an embodiment of the treatment chair with a coupling of the circular adjustment by means of the carriage and the adjustment of the support frame relative to the carriage
  • Fig. 23 shows an embodiment of the treatment chair, in which the support frame connected to the backrest is.
  • FIG. 1 shows a treatment chair which has a seat surface 1, a leg support 2 adjoining on one side of the seat surface 1 and a backrest 3 adjoining the other side of the seat surface 1. On the backrest 3, a headrest 4 is attached.
  • the seat 1 is attached by means of a rotary joint 5 to a support frame 6, which is itself connected via a rotary joint 7 with an arcuate carriage 8.
  • the carriage 8 is a guide means, by means of which the rotary joint 7 is guided on a concave path, in the present case on a circular path.
  • the arcuate carriage 8 is rotated on a circular path about a Momentanpol C, which is located at a height of 1200 mm above the ground. This is done by means of a guide and drive unit 9, which stands on the ground, wherein the angle ⁇ of the tangent of the carriage 8 to the horizontal is 29 °. In this case, the tangent is located at a pivot 7 facing the end of the guide and drive unit 9.
  • an adjusting means 10 is mounted, which enables a rotation of the support frame 6 about the pivot 7 and thus in particular a height adjustment of the support frame 6 and the seat 1 attached thereto.
  • the adjusting means 10 is designed as a lifting cylinder.
  • a hinge 11 and between the adjusting means 10 and the other on the support frame 6, a rotary joint 12 is provided.
  • an adjusting means 13 is mounted, which with a hinge 14 is fixed on the one hand to the support frame 6 and on the other hand with a hinge 15 on the seat surface 1.
  • the seat 1 is rotated about the pivot 5.
  • a cam guide 16 allows adjustment of the backrest 3 relative to the seat 1.
  • a cam guide 17 allows adjustment of the headrest 4 relative to the backrest. 3
  • a patient 18 is positioned on the treatment chair, significant points for the treatment of the patient being a mouth point M within a treatment area B in the oral cavity of the patient and for the storage of the patient a hip pivot point H.
  • the headrest 4, the backrest 3, the seat 1 and the leg rest 2 are provided with corresponding pads 19, 20, 21 and 22.
  • FIG. 2 shows a reference position of the treatment chair described in FIG. 1.
  • FIGS. 8 to 17 show the positions of the treatment chair which can be set by the adjustments I to V.
  • the reference position is assumed as the starting position and thus as the zero point of the angle changes of the individual adjustments I to V.
  • the reference position is assumed as the starting position and thus as the zero point of the angle changes of the individual adjustments I to V.
  • the reference position is an angle cp 2 of the connecting line between the instantaneous center C and the pivot 7 to the horizontal - 137 °.
  • the angle of the connecting line between the rotary joint 7 and the rotary joint 5 to the horizontal is -9 °.
  • the angle cp2 of the connecting line 23 between the rotary joint in the lower end position 7 'and the instantaneous center C to the horizontal is -120 °.
  • the angle ⁇ 2 of the connecting line 24 between the rotary joint in the upper end position 1 "and the instantaneous center C to the horizontal is -153 °.
  • An angular difference ⁇ 2 and thus the maximum Ver adjusting angle is thus 33 ° in the present embodiment.
  • this angular difference ⁇ 2 can be at least 15 ° and at most 110 °.
  • a first adjustment I of the carriage 8 is shown on a circular path about the instantaneous pole C with a radius Ri by an angular difference ⁇ 2 of 15 ° with respect to the reference position of Fig. 2, wherein the radius Ri is 1100 mm.
  • the rotary joint 7 is thus rotated starting from a shown in Fig. 2 angle ⁇ 2 of -138 ° by ⁇ cp2 of 15 °.
  • the connecting lines of the two outer ends of the carriage to the instantaneous center C form an angular segment ⁇ cpi.
  • the mouth point M shifts to a new mouth point M 1 in the horizontal direction about AX 1 and in the vertical direction about AZ 1 .
  • Fig. 4 is a second adjustment II of the support frame 6 relative to the carriage 8 in the form of a rotation about the pivot 7 by an angle of 20 ° relative to the reference position of Fig. 2, wherein the adjustment II by the between the support frame. 6 and the carriage 8 attached adjusting means 10 is effected.
  • the consequence of the adjustment II is that the mouth point M moves to a new mouth point M 11 in the horizontal direction by AX 11 and in the vertical direction by AZ 11 .
  • FIG. 5 an adjustment III of the backrest 3 relative to the seat surface 1 in the form of a movement along the arcuate guide 16 relative to the reference position of Fig. 2 is shown.
  • the mouth point M is moved to a new mouth point M 111 .
  • the distance between the original mouth point M and the new mouth point M 111 is AX 111 in the horizontal direction and AZ 111 in the vertical direction.
  • Fig. 6 is an adjustment IV of the headrest 4 relative to the backrest 3 by means of the guide 17 relative to the
  • Fig. 7 is an adjustment V of the seat 1 relative to the support frame 6 by means of the adjusting means 13 in the form of a rotation about the hinge 5 by an angle of 20 ° with respect to the reference position shown in FIG.
  • the backrest is connected to the seat and is moved during the adjustment V.
  • the mouth point M is moved to a new mouth point M v .
  • the distance between the original mouth point M and the new mouth point M v is in the horizontal direction ⁇ X V and in the vertical direction ⁇ Z V.
  • the adjustments I, II, III, IV and V can be carried out such that the individual vertical displacements AZ 1, AZ 11 , AZ 111 , ⁇ Z IV and ⁇ Z V add up to a resulting vertical displacement ⁇ Z G of the mouth point M, so that the desired height of the bearings described below is achieved, wherein the desired angle of the connecting line between the skull vertex and the neck whirling to the horizontal is achieved.
  • the horizontal displacements AX 1 , AX 11 , AX 111 , ⁇ X IV and ⁇ X V add up to a total horizontal displacement ⁇ X G of the mouth point M.
  • An essential feature of the treatment chair according to the invention is that the adjustment between the patient supports described below is substantially by the adjustment I of the rotary joint 7 along a circular path with the radius Ri and not as in known treatment chairs by a vertical height adjustment of a seat on the one hand and by adjustments of a backrest and a leg rest on the other.
  • One advantage is that fewer adjustments need to be made, thereby reducing the total treatment time.
  • a further advantage is that with an adjustment between the bearings described below the horizontal total displacement ⁇ X G of the mouth point M is less than in known treatment chairs. As a result, the path of the tracking movement of the instrument carrier and the illumination lamp and thus the duration of the treatment is reduced.
  • Fig. 8 the treatment chair is shown in an entry position. With respect to the reference position of FIG. 2, the entry position is by an adjustment I order
  • the entry position is characterized by the fact that the support surface of the seat cushion 21 against the horizontal forms an angle of -14 ° and the support surface of the backrest padding 20 against the
  • Support surface of the seat cushion pad 21 occupies an angle of 95 °, the leg rest 2 a lower height as the seat 1 and the lowest point of the support surface of the seat cushion 21 is a height of 490 mm.
  • FIG. 9 shows the treatment chair in an examination position with a standing practitioner.
  • the examination position was achieved by an adjustment I by 15.5 °, an adjustment III and an adjustment IV.
  • the examination position is characterized in that the bearing surface of the seat cushion 21 forms an angle of -14 ° relative to the horizontal and that the support surfaces of the headrest cushion 19 and the backrest cushion 20 are aligned and that the support surfaces the backrest cushion 20 with the seat cushion 21 a Form angles of 117 °.
  • the mouth point M in the reference position is shifted to the new mouth point M 'in the examination position by a horizontal total displacement ⁇ X G and a vertical total displacement ⁇ Z G.
  • the connecting line between the skull vertex S and the nearest cervical vertebra W to the skull has an angle to
  • the mouth point M is located at a height of 1100 mm.
  • FIG. 10 shows the treatment chair in a treatment position during treatment in the lower jaw region and in a seated practitioner.
  • this treatment position was achieved by an adjustment I by 3.5 °, an adjustment II by 1 ° and an adjustment IV.
  • This treatment position is characterized in that the support surface of the seat cushion padding 21 forms an angle of -26 ° with respect to the horizontal and that the contact surfaces of the headrest support zen pad 19 and the backrest cushion 20 are aligned and that the support surfaces form the backrest cushion 20 with the seat cushion 21 at an angle of 139 °.
  • the mouth point M in the reference position is shifted to the new mouth point M 'in this treatment position by a horizontal total displacement ⁇ X G and a vertical total displacement ⁇ Z G.
  • the connecting line between the skull vertex S and the cervical vertebra W closest to the skull has an angle to the horizontal of 15 ° and coincides with the alignment of the spinal column, the mouth point M being at a height of 820 mm.
  • Fig. 11 the treatment chair is shown in a treatment position in a treatment in the upper jaw region and in a seated practitioner.
  • this treatment position was achieved by an adjustment I by -13.5 °, an adjustment II by 9 ° and an adjustment IV.
  • This treatment position is characterized in that the bearing surface of the seat cushion padding 21 forms an angle of -33 ° with respect to the horizontal and that the bearing surfaces of the
  • the examination position is characterized in that the support surface of the seat cushion 21 forms an angle of -22 ° with respect to the horizontal and that the support surfaces of the headrest pad 19 and the backrest pad 20 are aligned and that the bearing surfaces the back pad 20 with the seat pad 21 an angle of 139 ° form.
  • the mouth point M in the reference position is shifted to the new mouth point M 'in this treatment position by a horizontal total displacement ⁇ X G and a vertical total displacement ⁇ Z G.
  • the connecting line between the skull vertex S and the cervical vertebra W closest to the skull has an angle to the horizontal of 21 °, the mouth point M being at a height of 1250 mm.
  • Fig. 13 the treatment chair is shown in a treatment position in a treatment in the upper jaw region and in a standing practitioner. With respect to the reference position of Fig. 2, this treatment position by an adjustment I by -15 °, an adjustment II to
  • This treatment position is characterized in that the support surface of the seat cushion padding 21 forms an angle of -25 ° relative to the horizontal and that the support surfaces of the headrest pad 19 and the backrest pad 20 are aligned and that the bearing surfaces of the seat back cushion 20 with the Weg lake- pad 21 form an angle of 139 °.
  • the mouth point M in the reference position is shifted to the new mouth point M 'in this treatment position by a horizontal total displacement ⁇ X G and a vertical total displacement ⁇ Z G.
  • the connecting line between the skull vertex S and the cervical vertebra W closest to the skull has an angle to the horizontal of 16 °, the mouth point M being at a height of 1150 mm.
  • Fig. 14 the treatment chair is shown in an exit position.
  • the exit position was achieved by an adjustment I by - 18 °, an adjustment II by 11 °, an adjustment III and an adjustment IV.
  • the exit position is characterized in that the support surface of Wegflä- chenpolsterung 21 is horizontally at a height of 600 mm and that the support surfaces form the backrest cushion 20 with the seat cushion 21 an angle of 100 °.
  • Fig. 15 the treatment chair is shown in a position for shock storage.
  • the shock storage was achieved by an adjustment I by -15 °, an adjustment II by 5 ° and an adjustment IV.
  • the shock mount is characterized in that the backrest 3 in a lower position relative to the seat surface 1 and the leg rest 2 in a higher position relative to the seat surface 1, wherein the support surface of the seat cushion pad 21 forms an angle of -42 ° relative to the horizontal, the bearing surfaces of the headrest pad 19 and the backrest cushion 20 are aligned with each other, the bearing surfaces of the backrest cushion 20 and the seat cushion 21 form an angle of 137 °.
  • the treatment chair is shown in a lowermost position. With respect to the reference position of Fig.
  • the low position has been achieved by an adjustment I by 18 °, an adjustment II by -10 °, an adjustment III and a Ver position IV.
  • the lowest position is characterized in that the lowest point of the support surface of the seat 21 is at a height of 380 mm, wherein the support surface of the seat cushion 21 against the horizontal forms an angle of -23 °, the bearing surfaces of the headrest pad 19 and the backrest cushion 20th aligned with each other, the bearing surfaces of the backrest cushion 20 and the seat cushion 21 form an angle of 88 °.
  • FIG. 17 shows a further exemplary embodiment of the position II of the carrier frame 6 with respect to the carriage 8 by means of an adjusting means 30, wherein the adjusting means 30 acts directly on the rotary joint 7.
  • the carriage 8 is extended by a telescopic rail 40.
  • the original angle segment ⁇ i is widened by an additional angle segment ⁇ i 'of 15 °.
  • the rotary joint 7 is located at the outer end of the telescopic rail 40.
  • the angle range shown in Fig. 3 ⁇ 2 of the adjustment I of the rotary joint 7 to the instantaneous center C is thereby extended.
  • Fig. 19 an embodiment of the drive and guide unit 9 is shown, wherein the angle ⁇ of a tangent of the carriage 8 in the middle of the drive and guide unit 9 relative to the horizontal by ⁇ of 15 ° to 45 ° is adjustable.
  • the instantaneous pole C of the circular slide 8 is moved to a new instantaneous center C and the patient's mouth M is moved by ⁇ X V i in the horizontal direction and by ⁇ Z V i in - ZO Qo - shifted vertically.
  • the instantaneous center C and the mouth point M are rotated about a pivot point 50 of the drive and guide unit 9 by ⁇ .
  • the rotation is driven by an adjusting means 51, which is designed as a Hubzy- cylinder.
  • Fig. 20 is a side view of an alternative embodiment of the treatment chair is shown, in which the outer bearing of the rotary joint 7 is replaced on the carriage 8 of FIG. 1 by a central storage.
  • the various adjustments of the dental chair are realized as follows.
  • a vertical support 60 is supported on two footrests 61 with a pivot 62 mounted in a momentary pole C on the support 60.
  • a swivel arm 63 is the guide means for this embodiment and is fastened to the support frame 6 between the swivel joint 62 in the instantaneous center C and a swivel joint 7. This swivel arm 63 forces the rotary joint 7 into a circular path about the instantaneous center pole C with the radius Ri. This circular movement corresponds to the adjustment I shown in FIG. 3, wherein the mouth point M in the same way about AX 1 in the horizontal direction and AZ 1 in the vertical Direction to the new mouth point M 1 is moved.
  • An adjustment of the adjusting means 64 which connects the pivot joint 12 and the swivel joint 62 in the instantaneous pole C, leads to a rotational movement of the support frame 6 about the swivel joint 7.
  • This movement corresponds to the adjustment II shown in FIG. 4, wherein the point M in FIG the same way by AX 11 in the horizontal direction and AZ 11 in the vertical direction to the new mouth M 11 is moved.
  • the adjustments III and IV of the backrest and the headrest remain unchanged.
  • the mouth point M shifts in the same way as in the first embodiment of the treatment chair from FIG. 1 according to the adjustments I, II, III and IV.
  • Fig. 21 is a plan view of the embodiment of Fig. 20 is shown.
  • the carrier 60 is supported on footrests 61, wherein the pivot arm 63 connects the pivot 62 in the instantaneous center C with the pivot 7 and wherein the adjusting means 64 connects the pivot 62 with the pivot joint 12.
  • Fig. 22 an embodiment of the treatment chair is shown, in which the adjustment II by means of an adjusting means 10 'mechanically coupled via the drive gear 70 and the transmission gears 71 and 72 to the circular adjustment I of the rotary joint 7 by means of a carriage 8'.
  • FIG. 23 an embodiment of the treatment chair is shown, in which the support frame 6 is connected to the backrest 3 via a Kurver arrangement 16 '.
  • the support frame 6 is connected to the backrest 3 via a Kurver arrangement 16 '.
  • the backrest 3 is not moved together with the seat 1, so that the angle between the backrest 3 and the seat 1 changed.

Landscapes

  • 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)

Abstract

L'invention concerne un fauteuil de soins doté d'une surface d'assise (1) réglable en hauteur pour positionner un patient, cette surface d'assise (1) étant reliée à un élément de guidage (8, 63) par une articulation pivotante (7). L'articulation pivotante (7) est guidée sur une trajectoire concave relativement à un centre instantané de rotation (C), à une distance (R1) par rapport à ce centre instantané de rotation (C), lequel se trouve à une hauteur minimale de 0,8 m au-dessus du sol. L'articulation pivotante (7) se situe sur l'élément de guidage (8, 63) à une distance (R2) d'au moins 0,6 m d'un point d'articulation de la hanche (H) du patient placé sur la surface d'assise (1).
EP06830837.8A 2005-12-30 2006-12-28 Fauteuil de soins dote d'une surface d'assise basculante et réglable en hauteur pour positionner un patient Active EP1968519B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510063156 DE102005063156B8 (de) 2005-12-30 2005-12-30 Behandlungsstuhl mit einer in ihrer Höhe verstellbaren und kippbaren Sitzfläche zur Lagerung eines Patienten
PCT/EP2006/070244 WO2007077191A1 (fr) 2005-12-30 2006-12-28 Fauteuil de soins dote d'une surface d'assise basculante et réglable en hauteur pour positionner un patient

Publications (2)

Publication Number Publication Date
EP1968519A1 true EP1968519A1 (fr) 2008-09-17
EP1968519B1 EP1968519B1 (fr) 2019-02-20

Family

ID=38069001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06830837.8A Active EP1968519B1 (fr) 2005-12-30 2006-12-28 Fauteuil de soins dote d'une surface d'assise basculante et réglable en hauteur pour positionner un patient

Country Status (4)

Country Link
EP (1) EP1968519B1 (fr)
DE (1) DE102005063156B8 (fr)
DK (1) DK1968519T3 (fr)
WO (1) WO2007077191A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9962307B2 (en) 2010-12-20 2018-05-08 Restoration Robotics, Inc. Adjustable hair transplantation chair
EP2853291B1 (fr) 2013-09-27 2016-08-10 JK-Holding GmbH Dispositif d'irradiation ayant une uniformité élevée d'irradiation et procédé d'irradiation uniforme
EP3193671B1 (fr) * 2014-09-18 2019-06-12 Motion Concepts L.P. Chaise réglable

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7901576A (nl) * 1979-02-28 1980-09-01 Philips Nv Patieentendrager met onderling kantelbare draagorganen.
FR2612752B1 (fr) * 1987-03-27 1990-02-16 Doistau Denis Siege inclinable, en particulier pour cabinets dentaires
DE3815383C1 (en) * 1988-05-05 1989-09-07 Kanan Dr. Al Khobar Sa Saib Dental treatment chair
DE3901379A1 (de) * 1989-01-19 1990-10-31 Emda Dental Systeme Gmbh Stuhlflaechenlagerung
ATE153851T1 (de) * 1992-12-29 1997-06-15 Brumaba U Brustmann Behandlungstisch, insbesondere für die physikalische therapie
DE29713904U1 (de) * 1997-04-18 1997-09-25 Siemens AG, 80333 München Patientenlagerungstisch
US6802564B2 (en) * 2001-10-12 2004-10-12 Midmark Corporation Examination and treatment chair
US7325265B2 (en) * 2004-07-30 2008-02-05 Hill-Rom Services, Inc. Advanced articulation system and mattress support for a bed

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007077191A1 *

Also Published As

Publication number Publication date
DK1968519T3 (da) 2019-05-13
DE102005063156B3 (de) 2007-09-27
WO2007077191A1 (fr) 2007-07-12
EP1968519B1 (fr) 2019-02-20
DE102005063156B8 (de) 2007-12-27

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