JP2009226175A - Dental care chair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dental care chair to reduce a load on pressed locations of the leg part of a patient in a dental care condition. <P>SOLUTION: In a front folding type dental care chair with a backrest, seat face, leg rest, and headrest, a cushion made of a lower hardness material than the leg rest cushion material is set projected around the leg rest tip end. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a dental treatment chair that reduces the burden on the compression site of a patient leg in a dental practice state.

Conventionally, the height at which the patient can easily get on and off the dental treatment chair is about 450 mm at the lowest seating surface from the floor. Therefore, in order to ensure the lowest seating surface, the leg rest of the front folding type dental treatment chair is shortened.

In the dental treatment state, the patient 7 is seated on the dental treatment chair 5 for medical treatment and the backrest 1 is tilted in the X direction, so that the legrest 3 is rotated in the Y direction in conjunction with the treatment state of FIG. However, since the legrest is short, as shown in FIG. 5, assuming that the height of the patient 7 is 170 cm, the heel 8 of the patient 7 protrudes from the legrest 3. The weight of the patient's own leg is heavier toward the tip, and if the leg rest is short and the patient's heel 8 protrudes from the leg rest 3, the pressure at the tip increases, which may be painful.
Moreover, the patient leg part jumped out of the legrest 3, and the leg part was unstable. Therefore, a dental treatment chair is provided in which the length of the leg rest can be adjusted in a telescopic manner.
Japanese Utility Model Publication No. 58-95823

However, in Patent Document 1, it is necessary to provide a drive mechanism such as a hydraulic cylinder in order to expand and contract the legrest, which is expensive.
In addition, it cannot be applied to a dental treatment chair already installed in a dental clinic, and the dentist has to buy a dental treatment chair again.

To achieve the above object, the present invention will be described.
The invention according to claim 1 is a front-folding type dental treatment chair including a backrest, a seating surface, a legrest, and a headrest, and a cushion made of a material having a hardness lower than that of the legrest cushion is made convex in the vicinity of the legrest tip. It is characterized by providing.

The invention according to claim 2 is characterized in that, in claim 1, the cushion is detachable from the leg rest.

According to a third aspect of the present invention, in the first to second aspects, the cushion is made of a highly elastic material.

According to a fourth aspect of the present invention, in the first to second aspects, the cushion is made of a low resilience material.

  According to the present invention, by providing a cushion having a lower hardness than the legrest cushion material in a convex shape in the vicinity of the tip of the legrest, the cushion of the low hardness material sinks while the calf from the calf to the heel portion. By contacting, the patient's leg load is distributed and supported, and the pressure applied to the leg can be reduced.

  In addition, since the cushion is made of a material that is lower in hardness than the legrest cushion material, the cushion sinks along the patient's leg, supporting the patient's leg from the left and right. Can be stabilized.

  In addition, it does not require a drive mechanism for extending and retracting the leg rest, and it is inexpensive, and a cushion made of a lower hardness material than the leg rest cushion material can be detachably attached to the leg rest. It can also be applied to treatment chairs.

The best mode of the present invention will be described below with reference to the drawings.
A first embodiment will be described.
As shown in FIG. 1, it is a figure at the time of patient introduction of the front bending type dental treatment chair 5 provided with the backrest 1, the seat surface 2, the legrest 3, and the headrest 4. FIG.
The height from the floor surface 6 to the seat surface 2 is about 450 mm, which is the lowest sitting position, so that the patient can easily sit on the dental treatment chair 5 from the side or the front.

As shown in FIG. 4, the cushion 11 is formed in a convex shape so as to be integrated with the vicinity 10 of the tip of the legrest 3.
The hardness of the cushion 11 is based on the pressure distribution measurement, and the cushion 11 is made of a material having a lower hardness than the material of the cushion 13 of the legrest 3. It is set so as to be dispersed on the cushion 13 of the legrest 3 and the cushion 11 made of a low hardness and high elasticity material.

When the patient 7 is seated on the dental treatment chair 5 for medical treatment and the backrest 1 is tilted in the X direction, the legrest 3 is rotated in the Y direction in conjunction with the medical treatment state shown in FIG.
At this time, the convex 11 cushion 11 made of a low hardness and high elasticity material sinks and can support the load of the patient's leg from the patient's calf to the ankle, and the compressed patient 7 shown in FIG. The ankle portion 9 is protected and pain can be reduced.
Further, even when the patient moves the leg, the cushion of the high-elasticity material having a low hardness moves along with the movement of the patient leg, so that the stability of the patient leg is improved.

A second embodiment will be described.
Instead of the low-hardness and high-elasticity cushion 11 used in the first embodiment, a cushion made of a low-hardness, low-repulsion material is used, but the stability is slightly inferior, but a low-hardness, low-resilience material cushion Pain due to pressure is further reduced because the part receives the load from the patient's calf to the ankle more evenly along the foot.

A third embodiment will be described.
As shown in FIG. 3, the low-hardness material cushion 11 is provided with a mounting belt 12 and is mounted on the legrest 3.

The cushion 11 can be attached to the leg rest 3 by placing a removable cushion 11 in the vicinity 10 of the leg rest tip, and by rotating and fixing a rubber-like stretchable attachment belt 12 to the rear of the leg rest 3. It becomes.
The fixing method is not limited to the above. For example, a hook-and-loop fastener such as a magic tape or a magnet may be used.
In addition, the sectional shape of the cushion 11 of the present embodiment was a semicircular longitudinal section, but is not limited to this, and is a sectional shape composed of a semi-ellipse, a trapezoid, a quadrangle, a triangle, and a curve along the shape of the patient leg. May be.

The schematic block diagram which shows the dental treatment chair at the time of patient introduction of this invention. 1 is a schematic configuration diagram showing a first embodiment of the present invention. The cushion installation part enlarged view which shows the 3rd Embodiment of this invention. The cushion installation part enlarged view which shows the 1st Embodiment of this invention. The schematic block diagram which shows the conventional dental treatment chair.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Backrest 2 Seat surface 3 Legrest 4 Headrest 5 Dental treatment chair 6 Floor surface 7 Patient 8 Patient's heel 9 Compression site 10 Legrest tip 11 Cushion 12 Wearing belt 13 Legrest cushion

Claims (4)

  In a front-folding type dental treatment chair equipped with a backrest, seat surface, legrest and headrest, a cushion made of a material having a hardness lower than that of the legrest cushion is provided in the vicinity of the legrest tip. Dental treatment chair.   The dental treatment chair according to claim 1, wherein the cushion is detachable from the leg rest.   The dental treatment chair according to claim 1, wherein the cushion is made of a highly elastic material.   3. The dental treatment chair according to claim 1, wherein the cushion is made of a low resilience material.

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