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

• the present invention relates to a dental treatment chair according to the preamble of claim 1, wherein a seat is height adjustable relative to a base of the treatment chair between a home position and a maximum position.
• Dental treatment chairs are usually adjustable in several degrees of freedom in order to position the patient ergonomically and treatment-appropriate for the treatment to be performed.
• a classic dental chair consists of a height-adjustable seat, at the end of a seat back against the seat pivoting backrest is arranged.
• the backrest is usually followed by a head pad for supporting the patient's head.
• the adjustment of the position of the backrest and the head cushion is usually possible regardless of the height adjustment of the seat.
• treatment chairs are known in which the seat not only height adjustable, but also also slightly pivotable to allow a so-called Trendelenburg movement.
• the present invention is particularly concerned with the height adjustability of the bench of the treatment chair.
• various drive and transmission mechanisms are known which allow adjustment between a low home position and a maximum position.
• the drive and the lifting mechanism can be arranged for example below the seat, but there are also dental treatment stations are known in which the central supply device is formed by a rectangular column, the patient chair then arranged laterally of the column and with a located in the column Drive is coupled.
• the height adjustment of the treatment chair should move in a range that allows optimal or pleasant treatment for the treating dentist. Since dentists have different sizes, this means that the height adjustment should also be within certain limits, which are dependent on the size of the doctor. Furthermore, the range of motion should be dependent on whether the dentist prefers treatments performed standing or sitting. Finally, the arrangement of the Treatment chair opposite the columnar base also on whether the dentist is a left or right handed person.
• the present invention is therefore based on the object to provide a novel and particularly cost-effective way to tailor the height adjustment and arrangement of a dental treatment chair in a simple manner to the needs of a dentist.
• the solution according to the invention is based on the idea of designing the coupling between the seat of the treatment chair and drive with a vertically movable support arm, at the end facing away from the drive, the seat is fixed, wherein the support arm is formed inclined so that the points of application of the support arm to the drive and the seat are different in the vertical direction.
• This solution makes it possible to adjust the height adjustment and arrangement of the seat in a simple manner to the needs of a dentist by using differently shaped, preferably Z-like support arms.
• the use of two different support arms is sufficient, which can optionally be used, wherein in one of the two support arms of the attack on the drive above the point of attack on the bench and the other support arm of the attack on the drive below the point of attack on the Bench is located.
• the patient chair can then be coupled with the corresponding support arm to the drive.
• the seat could be converted in a simple manner from a classic right-handed operation to a left-handed operation.
• both support arms can optionally be used to adjust the scope of height adjustment to the preferred operation of the dentist.
• a dental treatment chair which has a columnar base, a seat arranged laterally from the base and height adjustable relative to it between a home position and a maximum position, a drive arranged in the base for height adjustment of the seat and a bench coupling with the drive Transmission mechanism comprising a vertically movable support arm, at the end facing away from the drive, the seat is fixed, according to the invention, the support arm is formed inclined so that the points of application of the support arm on the drive and the seat are different in the vertical direction.
• the or the support arms are preferably tubular, wherein in the event that two different support arms are selectively provided, they may also have different horizontal lengths.
• the arrangement of the seat can be adapted in a special way to the preferred mode of operation of the physician.
• a spindle drive arranged in the base is preferably provided, which has a vertically oriented drive spindle, which is suitably coupled to the carrier.
• a pneumatic or hydraulic drive would be conceivable.
• FIG. 1 shows the view of a dental treatment center with an inventively designed
• FIGS. 4 a and 4 b show various views of a first carrier arm
• Figures 5 a and 5 b show different views of a second support arm
• FIG. 6 shows the arrangement of the first carrier arm on the drive for height adjustment
• Figure 7 shows the arrangement of the second support arm on the drive
• FIGS 8 to 10 an alternative embodiment for storage and guidance of the support arm.
• the treatment chair according to the invention generally provided with the reference numeral 10 in Figure 1 is part of a dental workstation 1.
• This workstation 1 has as a central element 2 on a columnar supply device, which the holder, control and supply of the corresponding
• Components of the treatment station 1 is used.
• This includes, for example, a first service table 4, which is connected to the columnar base 2 via a pivoting arm 3.
• This service table 4 is primarily used by the treating dentist and is used for storage or control of dental treatment instruments such as drills, scaler and the like.
• a helper inner element 6 is attached to the base 2 via a second pivot arm 5.
• This preferably used by an assistant element 6 also serves to store and control individual instruments such as suckers or so-called spray handpieces.
• the control of the patient part 7, which includes a spittoon as well as a water supply, can be made via this helper inner element 6.
• the dental treatment center 1 shown in FIG. 1 corresponds to classical dental treatment stations.
• the central column 2 additionally serves to hold the treatment chair 10, which initially has a seat 11. At the rear end of the seat 11 are also a relative to this pivotable backrest 12 and then a headrest 13 is arranged thereafter. Both components - backrest 12 and headrest 13 - can be adjusted independently of one another in the desired manner, in order to adapt them to the patient, in particular its size, as well as the operation of the dentist. However, the adjustment of the backrest 12 and the headrest 13 are not the subject of the present invention and accordingly shall not be explained in detail below. As already mentioned, the present invention relates instead to the height adjustability of the treatment chair 10. A first special feature is that the drive required for this purpose is not arranged below the seat 11, as was previously the case, but instead in the supply unit 2 serving as a base. Thus, under the seat 11 there remains a free space which can be used to attach a footboard 14.
• the drive arranged within the base 2 and not shown in detail in FIG. 1 accordingly serves to enable a vertical movement of the seat 11.
• the seat 11 and thus the patient chair 10 should be able to be adjusted in a range that allows optimized operation for the dentist.
• both a treatment while standing and sitting is conceivable, with different preferences may exist on the part of the dentist.
• the area in which the patient chair 10 can be adjusted in height should therefore be adapted to the needs or wishes of the dentist.
• an arrangement of the treatment chair 10 on the opposite side of the base 2 should be made possible to allow use by left-handers.
• FIGS. 2 and 3 show the details of the coupling according to the invention of the treatment piece to the drive located inside the columnar base.
• the drive 20 is designed in the illustrated embodiment as a spindle drive 20 and has for this purpose a motor 21 which is coupled to a vertically oriented drive spindle 22. With the drive spindle 22, a guide member 24 is further coupled, which is mounted vertically displaceably on a guide column 23 arranged within the base. For this purpose, the guide member 24 with corresponding, formed on the side walls of the guide column 23 acts
• the treads are formed in this case by steel bands.
• the guide member 24 is then moved vertically along the column 23 in the desired manner.
• a pneumatic or hydraulic drive could be used as an alternative to the spindle drive shown, for example, a pneumatic or hydraulic drive could be used.
• the coupling of the treatment chair 10 to the drive is now via a support arm 30 which is connected at one end to the guide member 24 and at its other end to the patient chair 10 and the seat 11, respectively.
• the configuration of this support arm 30 can be seen in more detail in FIGS. 4a and 4b.
• the support arm 30 is formed Z-like or inclined angled.
• it first has a first end 31 in the form of a fastening flange, which is provided for attachment to the guide part 24.
• a second end 32 in turn serves the attachment to the seat or a support member located below the seat.
• Both ends 31, 32 are in this case connected via a connecting portion 33, which is designed in particular such that in the horizontal arrangement of the support arm 30 a total of the second, provided for attachment to the patient chair 10 end 32 is below the first end 31.
• the point of application of the support arm 30 on the drive is above the point of application on the seat 11 of the treatment chair, as can be seen in the illustrations in FIGS. 2 and 3.
• a second carrier arm could now also be used for fastening the treatment chair 10 to the drive 20, which is shown in FIGS. 5a and 5b and provided with the reference numeral 40. Also this alternative
• Carrier arm 40 has a first end 41 for attachment to the guide member 24 and a second end 42 for attachment to the patient chair 10, both ends 41, 42 are in turn connected via an interconnecting part 43 angled together.
• the second carrier arm 40 is tubular and formed, for example, by a casting.
• the second end 32 or 42 of the support arm 30 or 40 which serves to hold the treatment chair 10, is arranged lower at the first support arm 30 than at the second support arm 40.
• the first support arm 30 of the patient chair 10 is adjustable between a particularly low and a predetermined maximum position
• the help of the second support arm 40 of the patient chair can be adjusted from a slightly higher starting position, which is shown in Figure 7, up to a maximum height
• the first support arm 30 is preferably used in those cases where the dentist prefers a sitting treatment.
• the support arm 40 in turn serves in particular for the realization of an adjustment, which is advantageous for a preferred dentist.
• the adjustment can be adjusted by the choice of the appropriate support arm in a simple manner to the needs of a dentist.
• a further advantage of the solution according to the invention is also that the patient chair can be configured in a simple manner so that it is suitable for use in left-handed operation. For this purpose, essentially only a reversed arrangement of the support arm or of the guide part 24 on the guide column 23 is required. It can be seen that again by the use of the two carrier arms shown in Figures 4a to 5b different
• Adjustment heights or adjustment ranges for the patient chair 10 can be realized. Since in this case a twisted fastening of the support arms is required, this means that now the use of the first support arm 30 for realizing an adjustment for larger heights is required, while the second support arm 40 allows lower adjustment heights and thus in particular for use in a sitting position suitable is.
• a friction-free guidance of the carriage 51 in the vertical direction is achieved in that within the carriage 51 balls are mounted, which can roll along running surfaces, which are formed on side surfaces of the guide rail 50.

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)
• Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=38947367

Family Applications (1)

Country Status (5)

Cited By (2)

Families Citing this family (2)

Family Cites Families (5)

• 2006
  • 2006-10-31 DE DE102006051509A patent/DE102006051509A1/de not_active Withdrawn
• 2007
  • 2007-10-30 AT AT07819459T patent/ATE526929T1/de active
  • 2007-10-30 JP JP2009535019A patent/JP2010508102A/ja active Pending
  • 2007-10-30 WO PCT/EP2007/009424 patent/WO2008052750A1/fr not_active Ceased
  • 2007-10-30 EP EP07819459A patent/EP2086489B1/fr not_active Not-in-force

Non-Patent Citations (1)

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