| 摘要 |
The present invention shall disclose an universal back resting device for dental treatment. The device of the present invention is capable of fixing to any chair and capable of adjusting angle of the hip joint as well as the neck joint of a subject. The device comprises of three vertical sections top( l ), middle(2) and bottom(3) of rigid support having front side and back side, plurality of connecting means, and atleast one fastener. The top section is vertically connected to the middle section through connecting means (5-7) thereby allowing the top section ( l ) to fold backwards with arrangement for locking at different angles for adjusting the angle of the neck of the subject The middle section(2) is vertically connected to the bottom section(3) through connecting means(5-7) thereby allowing the bottom section(3) to fold in backward direction for adjusting to the height of the subject. The fastener (4) is fixed at a predetermined position of atleast one of the vertical section for detachably attaching the device to backrest of the chair at a necessary angle with seat of the chair. The front side of the vertical sections or atleast top section is fitted with cushion for comfortability to the subject. |
