JP2008142444A - Dental treatment chair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To safely and effectively perform a dental treatment by dispensing with a foot controller used conventionally and simplifying work environment around a dental treatment chair. <P>SOLUTION: This dental treatment chair has a cover plate member 11 disposed on its base 10 and pushed down by a foot operation, and controls the actuation of a dental treatment instrument 8 by pushing down the cover plate member 11. A flexible gas press-in container 21 sealing gas with prescribed pressure therein, and a pressure sensor 22 for detecting air pressure of the inside of the container 21 are provided between the base 10 and the cover plate member 11, when the cover plate member 11 is pushed down, the pressure sensor 22 detects the pressure inside the container 21 varying according to the amount of pushing, the detected output is transmitted to a non-shown control part through a lead wire 23 to change the driving power of the dental instrument 8. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention provides a dental treatment chair, more specifically, a cover plate member that covers the base of the dental treatment chair and can be pressed by a foot operation, in addition to the on / off control of the dental treatment instrument, The drive power supplied to the instrument (for example, the rotational speed of an air turbine, a micro engine, etc.) can be changed to increase the function of the cover plate member, and around the dental treatment chair. It is simple and enables dental treatment to be performed more safely and effectively.

  FIG. 3 is a schematic configuration diagram for explaining an example of a conventional dental treatment unit. The dental treatment unit includes a treatment chair 1, a work table 2, a gargle device 3, a water supply / drainage box 4, an instrument holder 5, a foot. The instrument holder 5 is composed of a controller 6, an assistant instrument holder 7 and the like, and the instrument holder 5 houses various instruments 8 used in dental treatment. Sit in the treatment chair 1 and receive treatment with the head fixed to the head. During the treatment, the surgeon moves the treatment chair 1 up and down, tilts and tilts to bring the patient into an easy-to-treat posture, takes out the instrument 8 necessary for dental treatment from the instrument holder 5, and controls the foot controller. The dental treatment is performed while controlling the driving (for example, on / off and the number of rotations) of the instrument taken out in step 6.

  Dental treatment is usually performed by placing the treatment chair 1 in a lying (sleeping) state and the operator sitting on the back side of the patient. Therefore, conventionally, a base plate 10 of the treatment chair is provided with a cover plate member that can be pressed by a foot operation, and the driving / stopping (on / off) of the instrument in use is controlled by pressing the cover plate member. Thus, a dental treatment chair that can perform dental treatment more effectively has also been proposed.

  However, the operation using the cover plate member in the conventional dental treatment chair described above only controls the on / off operation of the dental treatment instrument, and it is possible to control the driving power such as the rotational speed of the instrument. However, a conventional foot controller (foot controller 6 in FIG. 3) was required.

  The present invention has been made in view of the above-described circumstances, and on / off and driving power (for example, the number of rotations) of the dental treatment instrument by the cover plate member provided on the base of the dental treatment chair. ) Can be controlled, the dental treatment work can be performed more effectively, and the foot controller (foot controller 6 shown in FIG. 3) that has been conventionally used is not required, so that the dental treatment chair can be used. The task was to simplify the surrounding work environment so that dental treatment can be performed safely and effectively.

The present invention has been made to solve the above problems,
According to a first aspect of the present invention, there is provided a cover plate member disposed on a base of a dental treatment chair and pressed by a foot operation, and the dental treatment instrument is driven by pressing the cover plate member. In the dental treatment chair, a flexible gas-sealed container in which a gas of a predetermined pressure is sealed between the base and the cover plate member, and a pressure sensor for detecting the gas pressure in the container. And when the cover plate member is pressed down, the gas pressure in the container that changes corresponding to the pressing amount is detected by the pressure sensor, and the driving power of the dental instrument is detected by the detection output. It is characterized by having changed.

  According to a second aspect of the present invention, there is provided a cover plate member disposed on the base of the dental treatment chair and pressed by a foot operation, and the dental treatment instrument is driven by pressing the cover plate member. In the dental treatment chair, a rotation member that is rotatable by a foot operation on the cover plate member, and further, a rotation amount that detects a rotation amount of the rotation member at a lower portion of the cover plate member. It has a detection means, and the drive power of the dental instrument is changed by the detection output of the rotation amount detection means.

  Since the conventional foot controller (foot controller 6 shown in FIG. 3) is not required and the working environment around the dental treatment chair is simplified, dental treatment can be performed more safely and effectively. It became so.

  FIG. 1 is a view for explaining an embodiment of a dental treatment chair according to the present invention, and FIG. 1 (A) shows a state in which dental treatment is performed with the dental treatment chair according to the present invention. FIG. 1B is an overall schematic configuration diagram, and FIG. 1B is a cross-sectional configuration diagram of a main part for explaining a control mechanism of a dental instrument using a cover plate member according to the present invention.

  As shown in FIG. 1 (A), in the dental treatment, the operator D sits on the back side of the patient P, takes out the instrument 8 necessary for the dental treatment from the instrument holder 5 and performs the dental treatment. However, in the present invention, on / off and rotation speed control of the instrument 8 in use is performed by pressing the cover plate member 11 provided on the base 10 of the treatment chair 1 by a foot operation. Conventionally, the on / off of the instrument 8 is controlled by pressing the cover plate member 11, and it has not been possible to control the rotational speed of the instrument 8.

  In the present invention, as shown in FIG. 1B, a flexible airtight container 21 in which a gas is sealed is disposed at the lower part of the cover plate member 11, and the airtight container 21 is placed by the cover plate member 11. By pressing, the pressure in the airtight container 21 is changed, the pressure change is detected by the pressure sensor 22, and the detected electric signal is passed through the lead wire 23 to, for example, a work table, an instrument holder, or the like. The information is transmitted to a control unit provided, and the control unit controls the instrument in use. In other words, by pressing the cover plate member 11, the gas pressure in the hermetic container 21 is changed, and on / off control and rotation speed control for the instrument in use are performed according to the gas pressure.

  According to the embodiment shown in FIG. 1, the gas is compressed and sealed in the flexible airtight container 21, and the cover plate member 11 is disposed thereon. The pressure is always pushed upward by the internal air pressure, so that it is not necessary to provide a separate mechanism for pushing up the cover plate member 11 upward, and the mechanism is simple and can be produced at low cost.

  FIG. 2 is a view for explaining another example of the instrument control mechanism (foot operation mechanism) according to the present invention. In this example, the on / off of the instrument used is controlled by pressing the cover plate member 11. In addition, the driving power (for example, the number of rotations, etc.) of the instrument used is rotated by the rotation of a rotation member (rotation cover member) 31 rotatably provided on the upper portion of the cover plate member 11. It is intended to be controlled.

  2A is a cross-sectional configuration diagram of the foot operation mechanism portion, FIG. 2B is an external view, in which 31 is a rotating cover member, and 32 is an integrated rotation of the rotating cover member 31. A rotation support shaft that is freely supported, 33 is a gear that is rotated by the rotation of the rotation support shaft 32, 34 is an encoder that detects the rotation angle of the gear 33, and 35 is a detection output of the encoder 34. A lead wire for transmitting to a control unit provided on a table, an instrument holder or the like, and a control unit provided at an end (not shown) of the lead wire 35 as in the embodiment shown in FIG. The driving power (rotation speed, etc.) of the instrument used is controlled to control. That is, in this embodiment, the cover plate member 11 is pressed down from above the rotation cover member 31 to control on / off of the instrument used, and the rotation cover member 31 is rotated by foot operation. The rotation angle is read by the encoder 34, and the drive power (rotation speed, etc.) of the instrument used is controlled by the output of the encoder 34.

  In the embodiment shown in FIG. 2, although not shown, naturally, an elastic member (spring or the like) that always pushes the foot operation portion side of the cover plate member 11 upward is used. An elastic member (spring or the like) for deviating the member 31 to a predetermined position (for example, the position where the rotation speed is the lowest) is used. Similarly to the above embodiment, the foot controller (foot controller 6 shown in FIG. 3) is unnecessary around the treatment chair, the treatment chair is simplified, and the dental treatment work can be performed safely and effectively.

It is a figure for demonstrating one Example of the dental treatment chair by this invention. It is a figure for demonstrating the other example of the foot operation mechanism in the dental treatment chair by this invention. It is a schematic block diagram for demonstrating an example of the conventional dental treatment unit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Treatment chair, 2 ... Work table, 5 ... Instrument holder, 6 ... Foot controller, 8 ... Instrument, 10 ... Base, 11 ... Cover board member, 21 ... Airtight container, 22 ... Pressure sensor, Reference numerals 23, 35 ... lead wires, 31 ... rotating members, 32 ... rotating support shafts, 33 ... gears, 34 ... encoders.

Claims (2)

  A dental treatment chair disposed on a base of a dental treatment chair, having a cover plate member that is pressed by a foot operation, and driving the dental treatment instrument by pressing the cover plate member A flexible gas-sealed container sealed with a predetermined pressure of gas between the base and the cover plate member, and a pressure sensor for detecting the gas pressure in the container, and the cover plate When the member is pressed, the gas pressure in the container that changes corresponding to the pressing amount is detected by the pressure sensor, and the driving power of the dental instrument is changed by the detection output. Characteristic dental treatment chair.   A dental treatment chair that is disposed on a base of a dental treatment chair and has a cover plate member that is pressed by a foot operation, and the dental treatment instrument is driven by pressing the cover plate member. The cover plate member has a rotation member that is rotatable by a foot operation, and further includes a rotation amount detection means that detects a rotation amount of the rotation member at a lower portion of the cover plate member, A dental treatment chair characterized in that the driving power of the dental instrument is changed by the detection output of the rotation amount detecting means.

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