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EP4014941A1 - Appuie-tête pour un fauteuil de traitement médical - Google Patents

Appuie-tête pour un fauteuil de traitement médical Download PDF

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Publication number
EP4014941A1
EP4014941A1 EP21214595.7A EP21214595A EP4014941A1 EP 4014941 A1 EP4014941 A1 EP 4014941A1 EP 21214595 A EP21214595 A EP 21214595A EP 4014941 A1 EP4014941 A1 EP 4014941A1
Authority
EP
European Patent Office
Prior art keywords
headrest
pivot axis
locking device
support
designed
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.)
Pending
Application number
EP21214595.7A
Other languages
German (de)
English (en)
Inventor
Georg Hummler
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.)
KaVo Dental GmbH
Original Assignee
KaVo Dental 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 KaVo Dental GmbH filed Critical KaVo Dental GmbH
Publication of EP4014941A1 publication Critical patent/EP4014941A1/fr
Pending 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
    • A61G15/10—Parts, details or accessories
    • A61G15/12—Rests specially adapted therefor, e.g. for the head or feet
    • A61G15/125—Head-rests

Definitions

  • the present invention relates to a headrest for a medical or dental treatment chair and to a medical or dental treatment chair with a backrest and such a headrest.
  • Previous headrests of medical or dental treatment chairs usually consist of at least two subcomponents, which can be pivoted independently of one another in order to set a desired positioning of the patient's head.
  • a headrest which consists of three sub-components, namely a base part which is connected to the treatment chair, an intermediate support and a cushion support on which the cushion for resting the patient's head is formed.
  • Both the cushion support and the intermediate support each have a locking device with an adjusting mechanism or locking mechanism for adjusting and locking the set position of the respective component of the headrest, so that a position of the headrest set by a user remains fixed.
  • the locking mechanism can be deactivated by pressing a pushbutton so that the position of the headrest can be changed, with the locking mechanism being activated if the pushbutton is not actuated and the set position of the headrest being held or locked.
  • Such headrests have a large overall height and a high weight, so that they are clumsy and unwieldy to use.
  • the U.S. 7,240,966 B2 shows a pivoting device which is coupled to a headrest and to a backrest of a dental treatment chair and which connects the headrest and the backrest.
  • the pivoting device has an upper and a lower connecting element, with the upper connecting element being connected to the headrest and the lower connecting element being connected to the backrest, and both the upper and the lower connecting element being pivotably mounted in relation to the housing of the pivoting device via an axle bolt .
  • the pivoting device has an adjusting mechanism inside its housing and a locking device locking the adjusting mechanism, the locking device being releasable by pressing in a bolt running transversely inside the housing.
  • the invention is based on the task of specifying a headrest that is as compact and flat as possible as well as light and easy to use.
  • a medical or dental-medical treatment chair with a backrest and a headrest according to the invention is provided according to the invention.
  • a headrest which has at least the three (partial) components, base part, intermediate support and upholstery support, these components being individually pivotably coupled to one another, and the set position of the components being lockable by two locking devices.
  • the two locking devices are arranged along the intermediate carrier, in particular inside the intermediate carrier, so that the components for determining the set pivoting position are arranged parallel to one another and in particular spatially connected. This reduces the overall height of the headrest, with the operation of the locking mechanism or locking mechanism also being facilitated.
  • such a headrest has an extremely light upholstery support, since the upholstery support does not have any heavy components, such as a locking device, which further increases the operation and comfort of the headrest.
  • the freedom of movement for the adjustment of the headrest is increased in such a headrest due to the flat design of the individual components, which also has a positive effect on the ergonomics of the headrest.
  • the length of the first and the second locking device can be changed. This brings with it the advantage that the set pivot positions of the components of the headrest can be fixed particularly easily by the locking devices, while a flexible and stepless adjustment of the pivot position of the individual components of the headrest is also made possible.
  • the two locking devices can preferably be changed in length independently of one another.
  • the first locking device is connected to the base part via a third pivot axis.
  • the third pivot axis is formed by a third joint. Provision can furthermore be made for the third joint to be part of an articulated connection part. It can also be provided that the first Pivot axis is formed by a first joint, in particular the first joint can also be part of the joint connection part.
  • the articulated connection part as a connecting element between the base part and the intermediate carrier brings with it the advantage that the intermediate carrier is flexibly pivotably connected to the base part.
  • the design of the articulated connection part with the first and third articulations means that the position of the headrest relative to the backrest of the treatment chair can be both adjusted and the adjusted position can be fixed in the simplest possible way.
  • the components of the headrest can thus be adjusted in a simplified manner, with rapid adjustment with little effort being made possible, in particular, by the leverage effect.
  • the headrest is particularly preferably designed in such a way that the third pivot axis is located eccentrically from the first pivot axis.
  • the pivoting movement of the intermediate carrier in relation to the base part can be limited from the outset, with the force acting on the first locking device and the intermediate carrier being distributed.
  • a simplified handling of the adjustment of the headrest is given.
  • the locking devices are coupled to the intermediate carrier via connection parts. Through these connection parts, the locking devices are each coupled to the intermediate carrier via a connection point.
  • the headrest is characterized in that the connection parts are arranged on the second pivot axis and are designed in particular to rotate about the second pivot axis.
  • the second locking device is pivotally coupled to a pivot pin of the cushion support via a pivot lever on a fourth pivot axis.
  • the fourth pivot axis can be formed by the hinge pin.
  • the positioning of the cushion support in relation to the intermediate support can thus be implemented in a particularly simple manner by the second locking device.
  • the articulated lever makes it possible to adjust the cushion support and the intermediate support in a particularly simple and energy-saving manner, with locking of the set pivoting position also being simplified by the lever effect.
  • a headrest designed in this way can be adjusted particularly easily and without great effort, with the set pivoting position of the headrest still being particularly stable.
  • the fourth pivoting axis is particularly preferably located eccentrically from the second pivoting axis, with the pivot pin therefore also being located eccentrically from the second pivoting axis.
  • the components of the headrest can be adjusted in a simplified manner, with quick and easy adjustment being made possible in particular by the leverage effect.
  • the articulated lever is mounted on a sliding bolt of the second locking device, the sliding bolt being slidably mounted in a guide link of the intermediate carrier.
  • the guide link can be designed as a guide rail.
  • the adjustment of the upholstery support and the intermediate support can be fixed in a particularly simple manner by the second fixing device, with the second fixing device being arranged essentially parallel to the first fixing device along the intermediate support.
  • the guide slot limits the movement of the articulated lever, which influences the adjustment of the cushion support and the intermediate support to one another in a specific way, so that the pivoting position of the components can be adjusted in a particularly simple and uncomplicated manner.
  • Such an arrangement allows the second locking device to be arranged in a particularly space-saving and efficient manner in the intermediate carrier next to the first locking device.
  • the articulated lever is designed as a pull or push rod.
  • the articulated lever has the function of a pull and push rod for adjusting the second locking device during the adjustment process and for stabilizing the set position of the cushion support relative to the intermediate support after the adjustment process.
  • the articulated lever is designed to pull or push the sliding bolt connected to the articulated lever along the guide slot into a new position when the pivoting position of the cushion support is adjusted, with the second locking device being designed to to optionally lock the new position of the slide bolt.
  • first and the second locking device are arranged between the first and the second pivot axis.
  • Such a design makes it possible to ensure that the two locking devices are always arranged between the two pivot axes, regardless of the adjusted position of the headrest, so that the dimensioning of the intermediate support is particularly compact and flat, with the headrest being as compact, light and ergonomic as possible favored.
  • the first and the second locking device is a blocking cylinder, each of which has a piston cylinder with two working chambers, the working chambers of the piston cylinder being connected to one another by a connecting line in which a valve is arranged, which optionally activating or deactivating the locking device is to be opened or closed.
  • a particularly robust and reliable locking device is thus provided in this embodiment, which is arranged in a simple and space-saving manner in the intermediate carrier of the headrest. Furthermore, this design of the locking device makes it possible to operate the adjustment mechanism of the headrest intuitively and easily. In addition, the design allows the locking device as a blocking cylinder, the stepless adjustment of the headrest, which can be changed particularly easily and flexibly.
  • the intermediate carrier has an operating part for selectively simultaneously activating and simultaneously deactivating the two locking devices, with the operating part preferably having an operating element and an operating pin connected to the operating element, with the operating element preferably being located on one with respect to the intermediate carrier Long side is arranged, and wherein the operating pin is preferably mounted in the connection parts of the intermediate support.
  • the operation of the adjustment mechanism of the headrest is designed as intuitively and easily as possible.
  • the operating pin can form the second pivot axis.
  • a medical or dental treatment chair with a backrest and an embodiment of the headrest is also provided.
  • a headrest and a treatment chair with a backrest and the headrest are specified, which allow the position of the headrest to be changed in a simple, intuitive and quick manner, the headrest also being designed in a compact, light and flat design.
  • a particularly aesthetic headrest that can be used flexibly is thus created, which can be easily adapted to the application-specific position and positioning of the patient's head.
  • the figure 1 shows a side view of an embodiment of a headrest 1 according to the invention with its components base part 100, intermediate support 200 and cushion support 300.
  • the base part 100 of the headrest 1 is designed in such a way that it can be coupled to already known medical and/or dental treatment chairs and can also be used in new treatment chairs, with the base part 100 of the headrest 1 being able to be inserted directly into a backrest , or integrally formed with a backrest. Furthermore, it is provided that the headrest 1 is part of a dental or medical treatment chair according to the invention.
  • the articulated connection part 110 is coupled to the base part 100 , the articulated connection part 110 also being coupled to the intermediate support 200 .
  • a first pivot axis S1 runs through the articulated connection part 110, this first pivot axis S1 being particularly preferably formed by a first articulation 111.
  • the intermediate carrier 200 is connected to the base part 100 in a first end region of the intermediate carrier 200 so that it can pivot about the first pivot axis S1.
  • an operating part 240 with a Operating element 241, wherein the operating element 241 is designed in particular as a push button.
  • a second pivot axis S2 is also located on the second end region of the intermediate support 200, the cushion support 300 being connected to the intermediate support 200 so that it can pivot about the second pivot axis S2.
  • the operating element 241 and the operating part 240 are here arranged on the second pivot axis S2.
  • the intermediate carrier 200 thus has two end areas, the first end area facing the first pivot axis S1 and the second end area facing the second pivot axis S2.
  • the pad 301 is arranged on the pad carrier 300, the pad 301 being used for padded positioning of a patient's head.
  • the headrest 1 is designed to be adjustable in an application-specific and/or patient-specific manner, with the components of the headrest 1, i.e. in particular the control panel 100, the intermediate carrier 200 and the cushion carrier, being adjusted by means of the pivot axes, in particular by means of the first and second pivot axes S1, S2 300 can be pivoted to each other in such a way that a desired position of the headrest 1 can be set.
  • the padding support 300 has a grip element 302, which is shaped particularly ergonomically and is also designed in such a way that the pivoting of the components of the headrest 1 is possible with minimal effort by utilizing leverage.
  • a headrest 1 is thus shown, with which the pivoting of the components, in particular of the cushion support 300 to the intermediate support 200, is simplified.
  • the operating element 241 To pivot the components of the headrest 1, the operating element 241 must first be actuated, whereby the locking devices 210, 220 of the headrest 1 are released or deactivated, so that the components of the headrest 1 can be adjusted or pivoted. The desired position of the headrest 1 can now be adjusted by operating the handle element 302 . By releasing the actuation of the operating element 241, the locking devices 210, 220 are fixed or activated again, so that the set position of the headrest 1 is retained. the figure 1 shows the maximum collapsed state between the cushion support 300 and the intermediate support 200.
  • the figure 2 shows an interior view and sectional view of an exemplary embodiment of a headrest according to the invention 1.
  • the headrest 1 off figure 1 , Wherein the pad 301 and other cladding elements such as the grip element 302, the control element 241 and the control panel 240 are not shown.
  • the components of the headrest 1, ie the intermediate support 200, the cushion support 300 and the base part 100 as well as the articulated connection part 110 are shown in a sectional view, whereby the arrangement of the individual components can be seen more clearly.
  • the illustrated folded position of the headrest 1 shows that the pivoted position of the cushion support 300 is set essentially parallel to the intermediate support 200 .
  • the cushion support 300 is connected to the pivot pin 310 , the pivot pin 310 also forming the fourth pivot axis, the pivot lever 222 being coupled to the pivot pin 310 .
  • the articulated lever 222 connects the second locking device 220, and thus the intermediate support 200 connected to it via the second pivot axis S2, to the cushion support 300, so that the second locking device 220 can determine the set pivoting position of the two components relative to one another.
  • the cushion support 300 is essentially formed by a supporting surface, with which the handle element 302 and the cushion 301 are ultimately coupled.
  • this supporting surface of the cushion support 300 has projections which run in the direction of the intermediate support, these projections having recesses which are coupled to the operating pin 242, so that the cushion support 300 and the intermediate support 200 hinge-like over the second Pivot axis S2 are coupled together.
  • the operating bolt 242 also forms the second pivot axis S2, the second pivot axis S2 being arranged on the second end region of the intermediate support 200 and the connection parts 231, 232 being coupled to the operating bolt 242.
  • the connection parts 231 , 232 are accommodated here spatially within the intermediate carrier 200 , the first connection part 231 being coupled to the first fixing device 210 and the second connection part 232 being coupled to the second fixing device 220 .
  • the guide rail 201 is formed on the first end region of the intermediate support 200, in which the slide bolt 221 is accommodated, the slide bolt 221 being connected to the second locking device 220, in particular to a suspension of the second locking device.
  • a coupling to the first joint 111 is provided on the first end region of the intermediate support 200 , the first joint 111 coupling the intermediate support 200 to the joint connection part 110 .
  • the first joint 111 also forms the first pivot axis S1.
  • the first locking device 210 is in the first End area of the intermediate support 200 is coupled to a third joint 112 , the third joint 112 being coupled in particular to a suspension of the first locking device 210 .
  • the third joint 112 also forms the third pivot axis S3.
  • the two locking devices 210, 220 are arranged in parallel within the intermediate carrier 200.
  • a first pivoting movement is realized via the first pivoting axis S1 (see Figure 5a ), wherein the first pivoting movement pivots the intermediate support 200 and the cushion support 300 coupled to the intermediate support 200 relative to the base part 100 .
  • the two components upholstery support 300 and intermediate support 200 behave as a unit in relation to the base part 100, since they are pivoted in the same way in a first pivoting movement in relation to the base part 100.
  • the second pivoting movement is realized via the pivot axis S2, with the cushion support 300 being pivoted in turn relative to the intermediate support 200, or relative to the unit made up of the intermediate support 200 and base part 100.
  • the headrest 1 is designed in such a way that the first and the second pivoting movement can be carried out simultaneously, so that simultaneous pivoting about the first and the second pivot axis S1, S2 is possible.
  • the operating pin 242 is designed in such a way that when the operating element 241 is actuated, the operating pin 242 is displaced in such a way that the two locking devices 210, 220 are released in the same way, ie deactivated.
  • deactivated means that the locking devices 210, 220 no longer fix the set pivot position with respect to the corresponding pivot axis, so that a desired position can be set. If, on the other hand, the locking devices 210, 220 are "activated”, then the locking devices 210, 220 fix or lock the set pivot position, so that further giving away is not readily possible.
  • deactivated locking devices 210, 220 mean that the pivot positions of the cushion support 300, the intermediate support 200 and the base part 100 can be changed in relation to one another.
  • FIG 3 is shown another representation of the headrest 1, which is now compared to figure 2 an extended pivoted position of the headrest 1 is shown.
  • the headrest 1 off figure 2 was changed both by a first pivoting movement and by a second pivoting movement, the first pivoting movement having led to the fact that the intermediate carrier 200 in relation to the Base part 100 has been pivoted, and wherein the second pivoting movement has resulted in the cushion support 300 being pivoted in relation to the intermediate support 200 .
  • the second pivoting movement also changed the position of the pivot pin 310 relative to the intermediate support 200 by pivoting the cushion support 300 to the intermediate support 200 about the second pivot axis S2, with the pivot lever 222 coupled to the pivot pin 310 also being displaced.
  • the articulated lever 222 has a fixed length, the articulated lever 222 acts as a pull or push rod and guides or pushes the slide bolt 221 coupled to the other end of the articulated lever 222 along the guide link 201.
  • the slide bolt 221 is here with a suspension of the second locking device 220 coupled, wherein this second locking device 220 allows the displacement of the sliding bolt 221 in the deactivated state. In the activated state of the second locking device 220, however, it would not be possible to move the sliding bolt 221, so that the second pivoting movement cannot be carried out either, with the second locking device 220 locking the previously set pivoting about the second pivot axis S2.
  • the two locking devices 210, 220 are always arranged between the first and the second pivot axis S1, S2 or extend from the first pivot axis S1 to the second pivot axis S2.
  • the locking devices 210, 220 are arranged essentially parallel to one another, and they are also always positioned in the intermediate carrier 200.
  • the locking devices 210, 220 are designed as a blocking cylinder 400.
  • An exemplary embodiment of a structure of such a blocking cylinder 400 is in figure 4 shown.
  • the blocking cylinder 400 each have a piston cylinder 410 with two working chambers 411, 412, the working chambers 411, 412 of the piston cylinder 410 being connected to one another by a connecting line 413.
  • a valve 440 is arranged, which can be opened or closed for selectively activating or deactivating the locking device 210, 220.
  • blocking cylinder 400 consists essentially of a valve tappet 442, which is guided within a piston rod 430, and a piston cylinder 410, which accommodates piston rod 430 on a first side, with the Piston rod 430 is coupled to a piston 420.
  • the piston 420 is accommodated in the interior of the cylinder 410, the piston 420 being able to be moved within the cylinder 410 if the valve 440 located in the piston 420 is open.
  • the piston 420 separates a first working chamber 411 and a second working chamber 412, the position of the piston rod 430 affecting the size of the first working chamber 411 and the second working chamber 412. The deeper the piston rod 430 is sunk into the piston cylinder 410, the larger the first working chamber 411 and the smaller the second working chamber 412, and vice versa.
  • a valve 440 arranged inside the piston rod 430 is opened by moving a connecting web 413 , so that the first working chamber 411 and the second working chamber 412 are connected via the connecting web 413 .
  • the piston 420 can now be moved inside the piston cylinder 410 by the opened valve 440, so that the piston rod 430 can be lowered further or moved out further.
  • valve 440 which is connected to the piston rod 430 and is arranged inside the piston 420, is pressed in the direction of the valve tappet 442 by a return spring 441, which is arranged in the second working chamber 412, so that by default, i.e. without actuating the valve tappet 442, the valve 440 is closed, whereby the piston 420 cannot be moved since the position of the piston 420 is fixed. Only when valve tappet 442 is actuated, and thus by deactivating the locking device, is valve 440 opened so that piston 420 can be moved within cylinder 410, with piston rod 430 moving further into the second working chamber 412 when piston 420 is displaced Piston cylinder 410 is immersed, so that the overall size of the locking cylinder 400 is reduced.
  • the blocking cylinder 400 is provided at one end with a fixed suspension which is connected to the piston cylinder 410, while at the other end the piston rod 430 serves as a point of contact.
  • the locking devices 210, 220 are designed as blocking cylinders 400, it being evident that the individual blocking cylinders 400 are each connected with their piston rod 430 to the respective connection parts 231, 232.
  • the suspension of the first locking device 210 or the first blocking cylinder is coupled to the third joint 112, the suspension of the second locking device 220 or the second blocking cylinder being coupled to the sliding bolt 221, which is accommodated like a rail within the guide link 201.
  • valve tappets 442 of the two blocking cylinders 400 of the two locking devices 210, 220 are actuated via the connection parts 231, 232, so that the valves 440 of the blocking cylinders 400 open simultaneously, so that the headrest 1 can be adjusted both by a first pivoting movement via the first pivot axis S1 and also by a second pivoting movement via the second pivot axis S2.
  • FIG. 5 consisting of the two Figures 5a and 5b , shows different pivot positions of an exemplary embodiment of a headrest 1 according to the invention in a lateral sectional view.
  • Figures 5a and 5b differ only in terms of their pivot position and pivoting about the second pivot axis S2, wherein the position of the cushion support 300 relative to the intermediate support 200 between Figure 5a and 5b differs.
  • the articulated lever 222 coupled to the sliding bolt 221 is also shifted to the left as far as possible, with the articulated lever 222 thereby guiding or pressing the articulated bolt 310 into its position and thus fixing the pivoting of the cushion support 300. It can also be seen that the first locking device 210 and the second locking device 220 are arranged parallel to one another within the intermediate carrier 200 .
  • the pivoting position was changed in such a way that the cushion support 300 was adjusted in a second pivoting movement about the second pivot axis S2 in such a way that the sliding bolt 221 is positioned at the other maximum end of the guide link 201 .
  • the position of hinge pin 310 was changed in such a way that hinge lever 222 coupled to hinge pin 310 pushed sliding pin 221 along guide link 201 or along guide rail 201, and thus the coupled with the sliding bolt 221 suspension of the second locking device 220 has pulled away from the second pivot axis S2 in the direction of the first pivot axis S1.
  • the piston cylinder 410 of the second locking device 220 was also moved in the direction of the first end region of the intermediate support 200, or in the direction of the first pivot axis S1, so that the length of the second locking device 220 increases because the piston rod 430 of the second locking device 220 is on the second Connection part 232, and thus on the second pivot axis S2, is fixed.
  • the swivel position of the headrest 1 that has been set in this way is locked, so that the position cannot be easily changed.
  • the two components, the intermediate support 200 and the cushion support 300 are arranged essentially in parallel, so that the headrest 1 is particularly flat and compact overall.
  • a headrest 1 is thus specified which allows the pivoting position of the headrest 1 to be changed in a simple, intuitive and rapid manner, the headrest 1 also having a compact, light-weight and flat design.
  • a particularly aesthetic and flexible headrest 1 is thus created, which can be easily adapted to the application-specific position and positioning of the patient's head.

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  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (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)
EP21214595.7A 2020-12-18 2021-12-15 Appuie-tête pour un fauteuil de traitement médical Pending EP4014941A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020134101 2020-12-18

Publications (1)

Publication Number Publication Date
EP4014941A1 true EP4014941A1 (fr) 2022-06-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP21214595.7A Pending EP4014941A1 (fr) 2020-12-18 2021-12-15 Appuie-tête pour un fauteuil de traitement médical

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EP (1) EP4014941A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030178880A1 (en) * 2002-03-20 2003-09-25 Hannah Richard E. Headrest assembly for a wheelchair
US7240966B2 (en) 2002-09-05 2007-07-10 A-Dec, Inc. Headrest support and adjustment mechanism
EP1138306B1 (fr) 2000-03-22 2008-06-18 Kaltenbach & Voigt GmbH Fauteuil de soins médicaux ou dentaires et repose tête pour un tel fauteuil
US20100201176A1 (en) * 2009-02-11 2010-08-12 Dental Equipment, Llc, Dba Pelton & Crane Biarticulated headrest for chair
US7802851B2 (en) * 2005-04-11 2010-09-28 Planmeca Oy Method and apparatus for adjusting mutual position of constructional elements of a patient chair
US20160151222A1 (en) * 2013-06-28 2016-06-02 Revolutionary Medical Devices, Inc. Positioning device and method for use with a patient under anesthesia

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1138306B1 (fr) 2000-03-22 2008-06-18 Kaltenbach & Voigt GmbH Fauteuil de soins médicaux ou dentaires et repose tête pour un tel fauteuil
US20030178880A1 (en) * 2002-03-20 2003-09-25 Hannah Richard E. Headrest assembly for a wheelchair
US7240966B2 (en) 2002-09-05 2007-07-10 A-Dec, Inc. Headrest support and adjustment mechanism
US7802851B2 (en) * 2005-04-11 2010-09-28 Planmeca Oy Method and apparatus for adjusting mutual position of constructional elements of a patient chair
US20100201176A1 (en) * 2009-02-11 2010-08-12 Dental Equipment, Llc, Dba Pelton & Crane Biarticulated headrest for chair
US20160151222A1 (en) * 2013-06-28 2016-06-02 Revolutionary Medical Devices, Inc. Positioning device and method for use with a patient under anesthesia

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