JP2007068769A - Dental treatment chair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate dental treatment by locating the position of the oral cavity of a patient to a specified position for facilitating the dental treatment by moving the seat section with the patient as he/she remains sitting wherever the sitting position of the patient is when the patient has sat on a chair for dental treatment. <P>SOLUTION: This chair has a seat plate 4, a backrest 3 and the movable seat section 10 on the seat plate 4. The seat section 10 has pressure sensors 11<SB>11</SB>to 11mn which detect a pressure distribution when the patient sits. The pressure distribution when the patient sits on the seat is detected, and the seat section 10 is moved in response to the pressure distribution, and a state facilitating the dental treatment is presented by making the oral cavity position of the patient to the backrest 3 uniform. The seat section 10 has a lower seat section 10<SB>1</SB>which can move in the lateral direction (or the longitudinal direction) on the seat plate 4, and an upper seat section 10<SB>2</SB>which can move in the longitudinal direction (or the lateral direction) on the lower seat section 10<SB>1</SB>, and has the pressure sensors 11<SB>11</SB>to 11mn on the upper seat section 10<SB>2</SB>. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a dental treatment chair, and more specifically, when a patient sits on a dental treatment chair, the relationship between the oral position of the patient and the backrest is a predetermined relationship regardless of the position of the patient. It is intended to improve the accuracy of treatment or stabilize the patient's sitting comfort.

  FIG. 3 is an external view for explaining an outline of an example of a conventional dental treatment chair, in which 1 is a base, 2 is a headrest, 3 is a backrest (backrest), and 4 is a contour seat (seat). (Plate), 5 is a legrest, 6 is a footrest (step). During the dental treatment, the patient sits in this dental treatment chair, but the sitting position is not necessarily constant, and the patient sits in the front-back direction or the left-right direction. Or the patient's oral cavity position with respect to the backrest 3 is not constant, and there is a problem that dental treatment is difficult. Moreover, the patient has problems such as the backrest 3 being unstable and the sitting comfort being unstable.

  The present invention has been made in view of the above circumstances, and when a patient sits on a dental treatment chair, the sitting position is detected, and wherever the sitting position is, the sitting portion To move the patient to a predetermined position, keep the patient and backrest in a predetermined relationship, make the oral position of the patient a predetermined position that makes it easy to treat, and facilitate dental treatment, At the same time, it was made to keep the patient's sitting comfort stable.

  The invention of claim 1 includes a seat plate, a backrest, and a seat portion movable on the seat plate, and the seat portion includes a pressure sensor for detecting a pressure distribution when the patient sits down, The seat is moved in accordance with the distribution so that the position of the oral cavity of the patient relative to the backrest is made constant.

  According to a second aspect of the present invention, in the first aspect of the invention, the seat includes a lower seat that can move left and right (or front and rear) on the seat plate, and a front and rear (or left and right) on the lower seat. ) And a movable upper seat part, and the pressure sensor is provided in the upper seat part.

  When a patient sits on a dental chair, the sitting position is detected, and wherever the sitting position is, the sitting section is moved and the patient is moved to a predetermined position. Since the backrest is kept in a predetermined relationship and the oral cavity position of the patient is set to a predetermined position, the operator can easily perform dental treatment, and the patient has a stable sitting comfort.

  FIG. 1 is an overall perspective view for explaining an embodiment of a dental treatment chair according to the present invention. FIG. 2 is a side view. In the figure, 10 is a seat added by the present invention, and other references. Numbers 1-6 perform the same functions and operations as the prior art shown in FIG. The seat portion 10 is mounted on a seat plate (contour seat) 4 so as to be movable in the front-rear direction (arrow A direction and left-right B direction). The legrest 5 and the footrest 6 are also integrated with the seat portion 10. It is attached to be movable. The backrest (backrest) 3 is integrally attached to a seat plate (contour seat) 4 and, as is well known, tilts back and forth but does not move (slide).

A large number of pressure sensitive elements 11 _{11 to 11} mn are provided on the surface of the seat 10 in the vertical and horizontal directions (A direction and B direction), and when the patient sits on the seat 10, each pressure sensitive element is detected. The element generates a voltage corresponding to the received pressure, thereby knowing the position where the patient is sitting.

  The seat 10 is usually in a predetermined position (for example, when the patient sits in the center, the patient's back and the backrest 3 are aligned, and the patient's oral position is the predetermined position). However, when the patient sits off the center, the seat 10 moves back and forth and / or left and right so that the patient's sitting position becomes the center position. It has become.

The seat portion 10 is composed of _two upper and lower seat portions 10 ₁ , 10 ₂ , and the lower seat portion 10 ₁ is movable on the seat plate (contour seat) 4 so as to be movable in the front-rear A direction (or left-right B direction). The upper seat 10 ₂ is mounted on the lower seat 10 _{1 so} as to be movable in the left-right B direction (or the front-rear A direction). The pressure-sensitive elements 11 ₁₁ to 11 ₁₁ are attached to the upper seat 10 _2. 11 mn are arranged in a matrix, and the position of the patient's buttocks is detected from the pressure distribution when the patient is sitting, for example, the place where the most pressure is applied is brought to a predetermined position. To do.

Movement of the seat portion 10, seat portion 10 (10 _1, 10 ₂₎ itself but may be moved (slid) in the longitudinal and lateral directions, move the lower seat portion 10 ₁ back and forth or left and right directions (slidable) and then, it is also possible to movable by the said upper seat 10 ₂ lateral direction or roll as the front-rear direction to the belt conveyor.

Although the drawing does not describe in detail how to move the seat portion 10, the power source may be any of electricity, hydraulic pressure, air pressure, etc., and the seat plate 4 and the lower seat portion 10 _1. between, it can be used a mechanical linkage also rail, roller, etc. any desired mechanism between the lower seat portion 10 ₁ and the upper seat 10 _2.

  As described above, according to the present invention, when a patient sits on a dental treatment chair during dental treatment, even if the sitting position deviates from a predetermined position (for example, the center position), Because the shift is automatically detected and the patient is moved to a predetermined position, the relationship between the patient and the backrest can be maintained in a desired relationship. Since the patient's oral cavity is brought to a predetermined position (there is no deviation in the treatment position), dental treatment is easy and the accuracy of dental treatment can be improved.

It is a whole perspective view for demonstrating one Example of the dental treatment chair by this invention. It is a side view for demonstrating one Example of the dental treatment chair by this invention. It is an external view for demonstrating the outline of an example of the conventional chair for dental treatment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Base, 2 ... Headrest, 3 ... Backrest (backrest), 4 ... Contour seat (seat board), 5 ... Legrest, 6 ... Footrest (step), 10 ... Seat part (10 ₁ ... Lower seat Part, 10 ₂ ... upper seat part), 11 _{11 to} 11 ... pressure-sensitive element.

Claims (2)

  A seat plate, a backrest, and a seat portion movable on the seat plate, the seat portion including a pressure sensor that detects a pressure distribution when the patient is seated, and the seat portion according to the pressure distribution; The dental treatment chair is characterized in that the position of the oral cavity of the patient with respect to the backrest is made constant by moving.   The seat has a lower seat that can move left and right (or front and rear) on the seat plate, and an upper seat that can move back and forth (or left and right) on the lower seat, The dental treatment chair according to claim 1, wherein the pressure sensor is provided in an upper seat portion.

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